@@ -49,18 +49,53 @@ config BR2_archs4x
- Dual and Quad multiply and MAC operations
- Double-precision FPU
+config BR2_arc64
+ bool "64-bit ARC HS68"
+ select BR2_ARCH_IS_64
+ help
+ 64-bit ARC HS6x processor
+
+config BR2_arc32
+ bool "32-bit ARC HS58"
+ help
+ 32-bit ARC HS5x processor
+
+endchoice
+
+if BR2_arc64
+
+choice
+ prompt "Floating point strategy"
+
+config BR2_ARC64_SOFT_FLOAT
+ bool "Soft float"
+ help
+ This option uses software emulated floating point code for ARC
+ cores with Floating Point unit not configured.
+
+config BR2_ARC64_HARD_FLOAT
+ bool "ARCv3 Floating Point Unit"
+ help
+ This option uses Hardware Floating Point Unit in ARCv3 ISA
+ based ARC cores.
+
endchoice
+endif
+
# Choice of atomic instructions presence
config BR2_ARC_ATOMIC_EXT
bool "Atomic extension (LLOCK/SCOND instructions)"
default y if BR2_arc770d
default y if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full
default y if BR2_archs4x_rel31 || BR2_archs4x
+ default y if BR2_arc64 || BR2_arc32
config BR2_ARCH
- default "arc" if BR2_arcle
- default "arceb" if BR2_arceb
+ default "arc" if BR2_arcle && !BR2_arc64 && !BR2_arc32
+ default "arceb" if BR2_arceb && !BR2_arc64 && !BR2_arc32
+ default "arc64" if BR2_arc64
+ default "arc32" if BR2_arc32
config BR2_NORMALIZED_ARCH
default "arc"
@@ -81,14 +116,22 @@ config BR2_GCC_TARGET_CPU
default "hs38_linux" if BR2_archs38_full
default "hs4x_rel31" if BR2_archs4x_rel31
default "hs4x" if BR2_archs4x
+ default "hs5x" if BR2_arc32
+ default "hs6x" if BR2_arc64
+
+config BR2_GCC_TARGET_FPU
+ default "fpud" if BR2_ARC64_HARD_FLOAT
config BR2_READELF_ARCH_NAME
default "ARCompact" if BR2_arc750d || BR2_arc770d
default "ARCv2" if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full
default "ARCv2" if BR2_archs4x_rel31 || BR2_archs4x
+ default "Synopsys ARCv3 64-bit processor" if BR2_arc64
+ default "Synopsys ARCv3 32-bit processor" if BR2_arc32
choice
prompt "MMU Page Size"
+ default BR2_ARC_PAGE_SIZE_4K if BR2_arc64 || BR2_arc32
default BR2_ARC_PAGE_SIZE_8K
help
MMU starting from version 3 (found in ARC 770) and now
@@ -117,6 +160,10 @@ config BR2_ARC_PAGE_SIZE_16K
bool "16KB"
depends on !BR2_arc750d
+config BR2_ARC_PAGE_SIZE_64K
+ bool "64KB"
+ depends on BR2_arc64
+
endchoice
config BR2_ARC_PAGE_SIZE
@@ -25,7 +25,7 @@ else ifeq ($(BR2_ARC_PAGE_SIZE_8K),y)
ARCH_TOOLCHAIN_WRAPPER_OPTS += -Wl,-z,max-page-size=8192 -Wl,-z,common-page-size=8192
else ifeq ($(BR2_ARC_PAGE_SIZE_16K),y)
ARCH_TOOLCHAIN_WRAPPER_OPTS += -Wl,-z,max-page-size=16384 -Wl,-z,common-page-size=16384
-else ifeq ($(BR2_ARM64_PAGE_SIZE_64K),y)
+else ifeq ($(BR2_ARC_PAGE_SIZE_64K)$(BR2_ARM64_PAGE_SIZE_64K),y)
ARCH_TOOLCHAIN_WRAPPER_OPTS += -Wl,-z,max-page-size=65536 -Wl,-z,common-page-size=65536
endif
@@ -2,7 +2,11 @@ ifeq ($(BR2_arc),y)
# -matomic is always required when the ARC core has the atomic extensions
ifeq ($(BR2_ARC_ATOMIC_EXT),y)
+ifeq ($(BR2_arc64)$(BR2_arc32),y)
+ARCH_TOOLCHAIN_WRAPPER_OPTS += -matomic=1
+else
ARCH_TOOLCHAIN_WRAPPER_OPTS += -matomic
endif
+endif
endif
@@ -18,12 +18,15 @@ choice
config BR2_BINUTILS_VERSION_2_39_X
bool "binutils 2.39"
select BR2_PACKAGE_BINUTILS_HAS_NO_LIBSFRAME
+ depends on !(BR2_arc32 || BR2_arc64)
config BR2_BINUTILS_VERSION_2_40_X
bool "binutils 2.40"
+ depends on !(BR2_arc32 || BR2_arc64)
config BR2_BINUTILS_VERSION_2_41_X
bool "binutils 2.41"
+ depends on !(BR2_arc32 || BR2_arc64)
config BR2_BINUTILS_VERSION_ARC
bool "binutils arc (2.41)"
@@ -21,6 +21,12 @@ BINUTILS_SOURCE = binutils-gdb-$(BINUTILS_VERSION).tar.gz
BINUTILS_FROM_GIT = y
endif
+ifeq ($(BINUTILS_VERSION),arc64)
+BINUTILS_SITE = $(call github,foss-for-synopsys-dwc-arc-processors,binutils-gdb,$(BINUTILS_VERSION))
+BINUTILS_SOURCE = binutils-gdb-$(BINUTILS_VERSION).tar.gz
+BINUTILS_FROM_GIT = y
+endif
+
BINUTILS_SITE ?= $(BR2_GNU_MIRROR)/binutils
BINUTILS_SOURCE ?= binutils-$(BINUTILS_VERSION).tar.xz
BINUTILS_EXTRA_CONFIG_OPTIONS = $(call qstrip,$(BR2_BINUTILS_EXTRA_CONFIG_OPTIONS))
@@ -31,6 +37,8 @@ BINUTILS_LICENSE = GPL-3.0+, libiberty LGPL-2.1+
BINUTILS_LICENSE_FILES = COPYING3 COPYING.LIB
BINUTILS_CPE_ID_VENDOR = gnu
+BR_NO_CHECK_HASH_FOR += $(BINUTILS_SOURCE)
+
ifeq ($(BINUTILS_FROM_GIT),y)
BINUTILS_DEPENDENCIES += host-flex host-bison
HOST_BINUTILS_DEPENDENCIES += host-flex host-bison
@@ -30,6 +30,8 @@ config BR2_GCC_VERSION_11_X
depends on !BR2_POWERPC_CPU_HAS_SPE
# ARC HS48 rel 31 only supported by gcc arc fork.
depends on !BR2_archs4x_rel31
+ # ARCv3 processors are not yet supported in upstream GCC 11.x
+ depends on !(BR2_arc32 || BR2_arc64)
select BR2_TOOLCHAIN_GCC_AT_LEAST_11
config BR2_GCC_VERSION_12_X
@@ -40,6 +42,8 @@ config BR2_GCC_VERSION_12_X
depends on !BR2_POWERPC_CPU_HAS_SPE
# ARC HS48 rel 31 only supported by gcc arc fork.
depends on !BR2_archs4x_rel31
+ # ARCv3 processors are not yet supported in upstream GCC 12.x
+ depends on !(BR2_arc32 || BR2_arc64)
select BR2_TOOLCHAIN_GCC_AT_LEAST_12
config BR2_GCC_VERSION_13_X
@@ -47,6 +51,8 @@ config BR2_GCC_VERSION_13_X
# powerpc spe support has been deprecated since gcc 8.x.
# https://gcc.gnu.org/ml/gcc/2018-04/msg00102.html
depends on !BR2_POWERPC_CPU_HAS_SPE
+ # ARCv3 processors are not yet supported in upstream GCC 13.x
+ depends on !(BR2_arc32 || BR2_arc64)
select BR2_TOOLCHAIN_GCC_AT_LEAST_13
endchoice
new file mode 100644
@@ -0,0 +1,47 @@
+From 9729b848e5e4886f9adf10d2adf9d3358e5bf343 Mon Sep 17 00:00:00 2001
+From: Claudiu Zissulescu <claziss@gmail.com>
+Date: Wed, 6 Dec 2023 12:03:01 +0200
+Subject: [PATCH] arc64: Remove faulty sub.f pattern.
+
+Original fix in ARC GCC is here [1].
+
+[1] https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/commit/9729b848e5e4886f9adf10d2adf9d3358e5bf343
+
+Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
+Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
+---
+ gcc/config/arc64/arith.md | 18 ------------------
+ 1 file changed, 18 deletions(-)
+
+diff --git a/gcc/config/arc64/arith.md b/gcc/config/arc64/arith.md
+index 190b38a5e8f..62c29cede30 100644
+--- a/gcc/config/arc64/arith.md
++++ b/gcc/config/arc64/arith.md
+@@ -176,24 +176,6 @@
+ (set_attr "length" "2,*,*,4,4,4,4,4,8")
+ (set_attr "type" "add")])
+
+-;; This pattern is needed because the GT (pnz) is not reversible and I
+-;; cannot convert CCmode to CC_ZNmode.
+-(define_insn "*<ADDSUB:optab><GPI:mode>3_f"
+- [(set (reg:CC CC_REGNUM)
+- (compare:CC
+- (ADDSUB:GPI
+- (match_operand:GPI 1 "arc64_nonmem_operand" "0, 0, 0, r,r,S32S0, r")
+- (match_operand:GPI 2 "arc64_nonmem_operand" "r,U06S0,S12S0,U06S0,r, r,S32S0"))
+- (const_int 0)))
+- (set (match_operand:GPI 0 "register_operand" "=r, r, r, r,r, r, r")
+- (ADDSUB:GPI (match_dup 1) (match_dup 2)))]
+- "register_operand (operands[1], <MODE>mode)
+- || register_operand (operands[2], <MODE>mode)"
+- "<ADDSUB:optab><GPI:sfxtab>.f\\t%0,%1,%2"
+- [(set_attr "predicable" "yes,yes,no,no,no,no,no")
+- (set_attr "length" "4,4,4,4,4,8,8")
+- (set_attr "type" "<ADDSUB:optab><GPI:sfxtab>")])
+-
+ ;; Arithmetic patterns used by the combiner.
+ (define_insn "*bic<mode>3"
+ [(set ( match_operand:GPI 0 "register_operand" "=q,r,r, r")
+--
+2.31.1
+
@@ -58,6 +58,7 @@ config BR2_PACKAGE_GDB_DEBUGGER
bool "full debugger"
depends on BR2_USE_WCHAR
depends on !BR2_sh
+ depends on !(BR2_arc32 || BR2_arc64)
select BR2_PACKAGE_GMP
select BR2_PACKAGE_MPFR if (BR2_GDB_VERSION_14 || BR2_arc)
select BR2_PACKAGE_NCURSES
new file mode 100644
@@ -0,0 +1,4036 @@
+From ac6163148698545dd56471edabf97ffc23a519da Mon Sep 17 00:00:00 2001
+From: Alexey Brodkin <abrodkin@synopsys.com>
+Date: Tue, 2 Jan 2024 03:38:32 -0800
+Subject: [PATCH] ARC: Add support for ARCv3 processors
+
+Signed-off-by: Vineet Gupta <vgupta@kernel.org>
+Signed-off-by: Pavel Kozlov <pavel.kozlov@synopsys.com>
+Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
+---
+ config.h.in | 6 +
+ elf/dl-runtime.c | 4 +-
+ elf/elf.h | 5 +-
+ nptl/Makefile | 5 +-
+ scripts/build-many-glibcs.py | 6 +
+ scripts/config.sub | 8 +
+ sysdeps/arc/Implies | 1 -
+ sysdeps/arc/__longjmp.S | 62 +-
+ sysdeps/arc/arc32/Implies | 1 +
+ sysdeps/arc/arc64/Implies | 1 +
+ sysdeps/arc/arc64/fpu/libm-test-ulps | 1141 +++++++++++++++++
+ sysdeps/arc/arc64/fpu/libm-test-ulps-name | 1 +
+ sysdeps/arc/{ => arc64}/nofpu/libm-test-ulps | 1 +
+ sysdeps/arc/arc64/nofpu/libm-test-ulps-name | 1 +
+ sysdeps/arc/atomic-machine.h | 41 +-
+ sysdeps/arc/bits/setjmp.h | 6 +-
+ sysdeps/arc/configure | 80 +-
+ sysdeps/arc/configure.ac | 36 +
+ sysdeps/arc/dl-machine.h | 75 +-
+ sysdeps/arc/dl-trampoline.S | 89 +-
+ sysdeps/arc/fpu/math-use-builtins-fma.h | 18 +-
+ sysdeps/arc/fpu/math-use-builtins-sqrt.h | 18 +-
+ sysdeps/arc/isa-asm-macro-32.h | 61 +
+ sysdeps/arc/isa-asm-macro-64.h | 86 ++
+ sysdeps/arc/isa-asm-macros.h | 35 +
+ sysdeps/arc/nofpu/libm-test-ulps | 1 +
+ sysdeps/arc/nptl/pthreaddef.h | 2 +-
+ sysdeps/arc/preconfigure | 18 +-
+ sysdeps/arc/setjmp.S | 55 +-
+ sysdeps/arc/sfp-machine.h | 55 +-
+ sysdeps/arc/start.S | 14 +-
+ sysdeps/arc/sysdep.h | 5 +-
+ sysdeps/unix/sysv/linux/arc/Makefile | 8 +-
+ sysdeps/unix/sysv/linux/arc/arc32/Implies | 1 +
+ .../sysv/linux/arc/{ => arc32}/arch-syscall.h | 0
+ .../sysv/linux/arc/{ => arc32}/c++-types.data | 0
+ .../linux/arc/{ => arc32}/fixup-asm-unistd.h | 0
+ .../sysv/linux/arc/{ => arc32}/ld.abilist | 0
+ .../arc/{ => arc32}/libBrokenLocale.abilist | 0
+ .../sysv/linux/arc/{ => arc32}/libanl.abilist | 0
+ .../sysv/linux/arc/{ => arc32}/libc.abilist | 0
+ .../arc/{ => arc32}/libc_malloc_debug.abilist | 0
+ .../linux/arc/{ => arc32}/libcrypt.abilist | 0
+ .../sysv/linux/arc/{ => arc32}/libdl.abilist | 0
+ .../sysv/linux/arc/{ => arc32}/libm.abilist | 0
+ .../linux/arc/{ => arc32}/libpthread.abilist | 0
+ .../linux/arc/{ => arc32}/libresolv.abilist | 0
+ .../sysv/linux/arc/{ => arc32}/librt.abilist | 0
+ .../arc/{ => arc32}/libthread_db.abilist | 0
+ .../linux/arc/{ => arc32}/libutil.abilist | 0
+ sysdeps/unix/sysv/linux/arc/arc64/Implies | 2 +
+ .../sysv/linux/arc/{ => arc64}/arch-syscall.h | 59 +-
+ .../sysv/linux/arc/{ => arc64}/c++-types.data | 48 +-
+ .../sysv/linux/arc/{ => arc64}/ld.abilist | 8 +-
+ .../arc/{ => arc64}/libBrokenLocale.abilist | 0
+ .../sysv/linux/arc/{ => arc64}/libanl.abilist | 0
+ .../sysv/linux/arc/{ => arc64}/libc.abilist | 82 +-
+ .../arc/{ => arc64}/libc_malloc_debug.abilist | 8 +-
+ .../linux/arc/{ => arc64}/libcrypt.abilist | 0
+ .../sysv/linux/arc/{ => arc64}/libdl.abilist | 0
+ .../sysv/linux/arc/{ => arc64}/libm.abilist | 0
+ .../linux/arc/{ => arc64}/libpthread.abilist | 0
+ .../linux/arc/{ => arc64}/libresolv.abilist | 4 +-
+ .../sysv/linux/arc/{ => arc64}/librt.abilist | 0
+ .../arc/{ => arc64}/libthread_db.abilist | 0
+ .../linux/arc/{ => arc64}/libutil.abilist | 0
+ sysdeps/unix/sysv/linux/arc/bits/fcntl.h | 62 +
+ .../sysv/linux/arc/bits/types/__sigset_t.h | 2 +-
+ sysdeps/unix/sysv/linux/arc/clone.S | 30 +-
+ sysdeps/unix/sysv/linux/arc/clone3.S | 14 +-
+ sysdeps/unix/sysv/linux/arc/getcontext.S | 71 +-
+ sysdeps/unix/sysv/linux/arc/setcontext.S | 88 +-
+ sysdeps/unix/sysv/linux/arc/shlib-versions | 8 +
+ sysdeps/unix/sysv/linux/arc/swapcontext.S | 129 +-
+ sysdeps/unix/sysv/linux/arc/sys/ucontext.h | 1 +
+ sysdeps/unix/sysv/linux/arc/syscall.S | 16 +-
+ sysdeps/unix/sysv/linux/arc/sysdep.h | 16 +-
+ sysdeps/unix/sysv/linux/arc/vfork.S | 4 +-
+ timezone/zic.c | 2 +-
+ 79 files changed, 2211 insertions(+), 390 deletions(-)
+ mode change 100755 => 100644 scripts/config.sub
+ create mode 100644 sysdeps/arc/arc32/Implies
+ create mode 100644 sysdeps/arc/arc64/Implies
+ create mode 100644 sysdeps/arc/arc64/fpu/libm-test-ulps
+ create mode 100644 sysdeps/arc/arc64/fpu/libm-test-ulps-name
+ copy sysdeps/arc/{ => arc64}/nofpu/libm-test-ulps (99%)
+ create mode 100644 sysdeps/arc/arc64/nofpu/libm-test-ulps-name
+ create mode 100644 sysdeps/arc/isa-asm-macro-32.h
+ create mode 100644 sysdeps/arc/isa-asm-macro-64.h
+ create mode 100644 sysdeps/arc/isa-asm-macros.h
+ create mode 100644 sysdeps/unix/sysv/linux/arc/arc32/Implies
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/arch-syscall.h (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/c++-types.data (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc32}/fixup-asm-unistd.h (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/ld.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libBrokenLocale.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libanl.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libc.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libc_malloc_debug.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libcrypt.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libdl.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libm.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libpthread.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libresolv.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/librt.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libthread_db.abilist (100%)
+ copy sysdeps/unix/sysv/linux/arc/{ => arc32}/libutil.abilist (100%)
+ create mode 100644 sysdeps/unix/sysv/linux/arc/arc64/Implies
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/arch-syscall.h (89%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/c++-types.data (73%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/ld.abilist (54%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libBrokenLocale.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libanl.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libc.abilist (97%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libc_malloc_debug.abilist (80%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libcrypt.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libdl.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libm.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libpthread.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libresolv.abilist (95%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/librt.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libthread_db.abilist (100%)
+ rename sysdeps/unix/sysv/linux/arc/{ => arc64}/libutil.abilist (100%)
+ create mode 100644 sysdeps/unix/sysv/linux/arc/bits/fcntl.h
+
+diff --git a/config.h.in b/config.h.in
+index 0dedc124f7..d69b4166c0 100644
+--- a/config.h.in
++++ b/config.h.in
+@@ -120,6 +120,12 @@
+ /* ARC big endian ABI */
+ #undef HAVE_ARC_BE
+
++/* ARC64:32 ABI */
++#undef HAVE_ARC32
++
++/* ARC64:64 ABI */
++#undef HAVE_ARC64
++
+ /* C-SKY ABI version. */
+ #undef CSKYABI
+
+diff --git a/elf/dl-runtime.c b/elf/dl-runtime.c
+index 32a8bfcf74..68ffdb1c24 100644
+--- a/elf/dl-runtime.c
++++ b/elf/dl-runtime.c
+@@ -42,7 +42,7 @@ _dl_fixup (
+ # ifdef ELF_MACHINE_RUNTIME_FIXUP_ARGS
+ ELF_MACHINE_RUNTIME_FIXUP_ARGS,
+ # endif
+- struct link_map *l, ElfW(Word) reloc_arg)
++ struct link_map *l, uintptr_t reloc_arg)
+ {
+ const ElfW(Sym) *const symtab
+ = (const void *) D_PTR (l, l_info[DT_SYMTAB]);
+@@ -170,7 +170,7 @@ _dl_profile_fixup (
+ #ifdef ELF_MACHINE_RUNTIME_FIXUP_ARGS
+ ELF_MACHINE_RUNTIME_FIXUP_ARGS,
+ #endif
+- struct link_map *l, ElfW(Word) reloc_arg,
++ struct link_map *l, uintptr_t reloc_arg,
+ ElfW(Addr) retaddr, void *regs, long int *framesizep)
+ {
+ void (*mcount_fct) (ElfW(Addr), ElfW(Addr)) = _dl_mcount;
+diff --git a/elf/elf.h b/elf/elf.h
+index 89fc8021e9..05cc75c631 100644
+--- a/elf/elf.h
++++ b/elf/elf.h
+@@ -358,6 +358,8 @@ typedef struct
+
+ #define EM_BPF 247 /* Linux BPF -- in-kernel virtual machine */
+ #define EM_CSKY 252 /* C-SKY */
++#define EM_ARCV3 253 /* Synopsys ARCv3 64-bit ISA */
++#define EM_ARCV3_32 255 /* Synopsys ARCv3 32-bit ISA */
+ #define EM_LOONGARCH 258 /* LoongArch */
+
+ #define EM_NUM 259
+@@ -4216,12 +4218,13 @@ enum
+ /* Processor specific values for the Shdr sh_type field. */
+ #define SHT_ARC_ATTRIBUTES (SHT_LOPROC + 1) /* ARC attributes section. */
+
+-/* ARCompact/ARCv2 specific relocs. */
++/* ARCompact/ARCv2/ARCv3 specific relocs. */
+ #define R_ARC_NONE 0x0
+ #define R_ARC_8 0x1
+ #define R_ARC_16 0x2
+ #define R_ARC_24 0x3
+ #define R_ARC_32 0x4
++#define R_ARC_64 0x5
+
+ #define R_ARC_B22_PCREL 0x6
+ #define R_ARC_H30 0x7
+diff --git a/nptl/Makefile b/nptl/Makefile
+index ffa5722e48..c8b7674c27 100644
+--- a/nptl/Makefile
++++ b/nptl/Makefile
+@@ -353,6 +353,7 @@ tests = \
+ tst-thread-exit-clobber \
+ tst-thread-setspecific \
+ tst-thread_local1 \
++ tst-eintr1 \
+ tst-tsd3 \
+ tst-tsd4 \
+ # tests
+@@ -397,10 +398,6 @@ tests-time64 := \
+ tst-cancel4_2-time64
+ # tests-time64
+
+-# This test can run into task limits because of a linux kernel bug
+-# and then cause the make process to fail too, see bug 24537.
+-xtests += tst-eintr1
+-
+ test-srcs = tst-oddstacklimit
+
+ gen-as-const-headers = unwindbuf.sym
+diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
+index 73ffc57c86..6f53c195cd 100755
+--- a/scripts/build-many-glibcs.py
++++ b/scripts/build-many-glibcs.py
+@@ -172,6 +172,12 @@ class Context(object):
+ self.add_config(arch='arceb',
+ os_name='linux-gnu',
+ gcc_cfg=['--disable-multilib', '--with-cpu=hs38'])
++ self.add_config(arch='arc64',
++ os_name='linux-gnu',
++ gcc_cfg=['--disable-multilib'])
++ self.add_config(arch='arc64',
++ os_name='linux-gnuhf',
++ gcc_cfg=['--disable-multilib', '--with-fpu=fpud'])
+ self.add_config(arch='alpha',
+ os_name='linux-gnu')
+ self.add_config(arch='arm',
+diff --git a/scripts/config.sub b/scripts/config.sub
+old mode 100755
+new mode 100644
+index dba16e84c7..4d9a117c9c
+--- a/scripts/config.sub
++++ b/scripts/config.sub
+@@ -1170,6 +1170,14 @@ case $cpu-$vendor in
+ cpu=mipsallegrexel
+ vendor=sony
+ ;;
++ arc32*-*)
++ cpu=arc32
++ vendor=linux
++ ;;
++ arc64*-*)
++ cpu=arc64
++ vendor=linux
++ ;;
+ tile*-*)
+ basic_os=${basic_os:-linux-gnu}
+ ;;
+diff --git a/sysdeps/arc/Implies b/sysdeps/arc/Implies
+index 780c4e2467..12ca48b4c9 100644
+--- a/sysdeps/arc/Implies
++++ b/sysdeps/arc/Implies
+@@ -1,3 +1,2 @@
+-wordsize-32
+ ieee754/flt-32
+ ieee754/dbl-64
+diff --git a/sysdeps/arc/__longjmp.S b/sysdeps/arc/__longjmp.S
+index a57054bce0..920e535ffd 100644
+--- a/sysdeps/arc/__longjmp.S
++++ b/sysdeps/arc/__longjmp.S
+@@ -24,25 +24,49 @@
+
+ ENTRY (__longjmp)
+
+- LDR (blink, r0, 0)
+- LDR (sp, r0, 1)
+- LDR (fp, r0, 2)
+- LDR (gp, r0, 3)
+-
+- LDR (r13, r0, 4)
+- LDR (r14, r0, 5)
+- LDR (r15, r0, 6)
+- LDR (r16, r0, 7)
+- LDR (r17, r0, 8)
+- LDR (r18, r0, 9)
+- LDR (r19, r0, 10)
+- LDR (r20, r0, 11)
+- LDR (r21, r0, 12)
+- LDR (r22, r0, 13)
+- LDR (r23, r0, 14)
+- LDR (r24, r0, 15)
+-
+- mov.f r0, r1
++ LDR.as blink, r0, 0
++ LDR.as sp, r0, 1
++ LDR.as fp, r0, 2
++ LDR.as gp, r0, 3
++
++ LDR.as r13, r0, 4
++ LDR.as r14, r0, 5
++ LDR.as r15, r0, 6
++ LDR.as r16, r0, 7
++ LDR.as r17, r0, 8
++ LDR.as r18, r0, 9
++ LDR.as r19, r0, 10
++ LDR.as r20, r0, 11
++ LDR.as r21, r0, 12
++ LDR.as r22, r0, 13
++ LDR.as r23, r0, 14
++ LDR.as r24, r0, 15
++
++#if defined(__ARCV3__)
++ LDR.as r25, r0, 16
++ LDR.as r26, r0, 17
++#endif
++
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ FLDR.as f16, r0, 18
++ FLDR.as f17, r0, 19
++ FLDR.as f18, r0, 20
++ FLDR.as f19, r0, 21
++ FLDR.as f20, r0, 22
++ FLDR.as f21, r0, 23
++ FLDR.as f22, r0, 24
++ FLDR.as f23, r0, 25
++ FLDR.as f24, r0, 26
++ FLDR.as f25, r0, 27
++ FLDR.as f26, r0, 28
++ FLDR.as f27, r0, 29
++ FLDR.as f28, r0, 30
++ FLDR.as f29, r0, 31
++ FLDR.as f30, r0, 32
++ FLDR.as f31, r0, 33
++#endif
++
++ MOVR.f r0, r1
+ j.d [blink]
+ mov.z r0, 1 /* don't return 0 to setjmp callsite from longjmp. */
+
+diff --git a/sysdeps/arc/arc32/Implies b/sysdeps/arc/arc32/Implies
+new file mode 100644
+index 0000000000..39a34c5f57
+--- /dev/null
++++ b/sysdeps/arc/arc32/Implies
+@@ -0,0 +1 @@
++wordsize-32
+diff --git a/sysdeps/arc/arc64/Implies b/sysdeps/arc/arc64/Implies
+new file mode 100644
+index 0000000000..a8cae95f9d
+--- /dev/null
++++ b/sysdeps/arc/arc64/Implies
+@@ -0,0 +1 @@
++wordsize-64
+diff --git a/sysdeps/arc/arc64/fpu/libm-test-ulps b/sysdeps/arc/arc64/fpu/libm-test-ulps
+new file mode 100644
+index 0000000000..f3b8753c4d
+--- /dev/null
++++ b/sysdeps/arc/arc64/fpu/libm-test-ulps
+@@ -0,0 +1,1141 @@
++# Begin of automatic generation
++
++# Maximal error of functions:
++Function: "acos":
++double: 1
++float: 1
++
++Function: "acos_downward":
++double: 1
++float: 1
++
++Function: "acos_towardzero":
++double: 1
++float: 1
++
++Function: "acos_upward":
++double: 1
++float: 1
++
++Function: "acosh":
++double: 2
++float: 2
++
++Function: "acosh_downward":
++double: 2
++float: 2
++
++Function: "acosh_towardzero":
++double: 2
++float: 2
++
++Function: "acosh_upward":
++double: 2
++float: 2
++
++Function: "asin":
++double: 1
++float: 1
++
++Function: "asin_downward":
++double: 1
++float: 1
++
++Function: "asin_towardzero":
++double: 1
++float: 1
++
++Function: "asin_upward":
++double: 2
++float: 1
++
++Function: "asinh":
++double: 2
++float: 2
++
++Function: "asinh_downward":
++double: 3
++float: 3
++
++Function: "asinh_towardzero":
++double: 2
++float: 2
++
++Function: "asinh_upward":
++double: 3
++float: 3
++
++Function: "atan":
++double: 1
++float: 1
++
++Function: "atan2":
++float: 1
++
++Function: "atan2_downward":
++double: 1
++float: 2
++
++Function: "atan2_towardzero":
++double: 1
++float: 2
++
++Function: "atan2_upward":
++double: 1
++float: 1
++
++Function: "atan_downward":
++double: 1
++float: 2
++
++Function: "atan_towardzero":
++double: 1
++float: 1
++
++Function: "atan_upward":
++double: 1
++float: 2
++
++Function: "atanh":
++double: 2
++float: 2
++
++Function: "atanh_downward":
++double: 3
++float: 3
++
++Function: "atanh_towardzero":
++double: 2
++float: 2
++
++Function: "atanh_upward":
++double: 3
++float: 3
++
++Function: "cabs":
++double: 1
++
++Function: "cabs_downward":
++double: 1
++
++Function: "cabs_towardzero":
++double: 1
++
++Function: "cabs_upward":
++double: 1
++float: 1
++
++Function: Real part of "cacos":
++double: 1
++float: 2
++
++Function: Imaginary part of "cacos":
++double: 2
++float: 2
++
++Function: Real part of "cacos_downward":
++double: 3
++float: 2
++
++Function: Imaginary part of "cacos_downward":
++double: 5
++float: 3
++
++Function: Real part of "cacos_towardzero":
++double: 3
++float: 2
++
++Function: Imaginary part of "cacos_towardzero":
++double: 4
++float: 2
++
++Function: Real part of "cacos_upward":
++double: 2
++float: 2
++
++Function: Imaginary part of "cacos_upward":
++double: 5
++float: 5
++
++Function: Real part of "cacosh":
++double: 2
++float: 2
++
++Function: Imaginary part of "cacosh":
++double: 1
++float: 2
++
++Function: Real part of "cacosh_downward":
++double: 4
++float: 2
++
++Function: Imaginary part of "cacosh_downward":
++double: 3
++float: 3
++
++Function: Real part of "cacosh_towardzero":
++double: 4
++float: 2
++
++Function: Imaginary part of "cacosh_towardzero":
++double: 3
++float: 2
++
++Function: Real part of "cacosh_upward":
++double: 4
++float: 3
++
++Function: Imaginary part of "cacosh_upward":
++double: 3
++float: 2
++
++Function: "carg":
++float: 1
++
++Function: "carg_downward":
++double: 1
++float: 2
++
++Function: "carg_towardzero":
++double: 1
++float: 2
++
++Function: "carg_upward":
++double: 1
++float: 1
++
++Function: Real part of "casin":
++double: 1
++float: 1
++
++Function: Imaginary part of "casin":
++double: 2
++float: 2
++
++Function: Real part of "casin_downward":
++double: 3
++float: 2
++
++Function: Imaginary part of "casin_downward":
++double: 5
++float: 3
++
++Function: Real part of "casin_towardzero":
++double: 3
++float: 1
++
++Function: Imaginary part of "casin_towardzero":
++double: 4
++float: 2
++
++Function: Real part of "casin_upward":
++double: 3
++float: 2
++
++Function: Imaginary part of "casin_upward":
++double: 5
++float: 5
++
++Function: Real part of "casinh":
++double: 2
++float: 2
++
++Function: Imaginary part of "casinh":
++double: 1
++float: 1
++
++Function: Real part of "casinh_downward":
++double: 5
++float: 3
++
++Function: Imaginary part of "casinh_downward":
++double: 3
++float: 2
++
++Function: Real part of "casinh_towardzero":
++double: 4
++float: 2
++
++Function: Imaginary part of "casinh_towardzero":
++double: 3
++float: 1
++
++Function: Real part of "casinh_upward":
++double: 5
++float: 5
++
++Function: Imaginary part of "casinh_upward":
++double: 3
++float: 2
++
++Function: Real part of "catan":
++double: 1
++float: 1
++
++Function: Imaginary part of "catan":
++double: 1
++float: 1
++
++Function: Real part of "catan_downward":
++double: 1
++float: 2
++
++Function: Imaginary part of "catan_downward":
++double: 2
++float: 2
++
++Function: Real part of "catan_towardzero":
++double: 1
++float: 2
++
++Function: Imaginary part of "catan_towardzero":
++double: 2
++float: 2
++
++Function: Real part of "catan_upward":
++double: 1
++float: 1
++
++Function: Imaginary part of "catan_upward":
++double: 2
++float: 2
++
++Function: Real part of "catanh":
++double: 1
++float: 1
++
++Function: Imaginary part of "catanh":
++double: 1
++float: 1
++
++Function: Real part of "catanh_downward":
++double: 2
++float: 2
++
++Function: Imaginary part of "catanh_downward":
++double: 1
++float: 2
++
++Function: Real part of "catanh_towardzero":
++double: 2
++float: 2
++
++Function: Imaginary part of "catanh_towardzero":
++double: 1
++float: 2
++
++Function: Real part of "catanh_upward":
++double: 4
++float: 4
++
++Function: Imaginary part of "catanh_upward":
++double: 1
++float: 1
++
++Function: "cbrt":
++double: 4
++float: 1
++
++Function: "cbrt_downward":
++double: 4
++float: 1
++
++Function: "cbrt_towardzero":
++double: 3
++float: 1
++
++Function: "cbrt_upward":
++double: 5
++float: 1
++
++Function: Real part of "ccos":
++double: 1
++float: 1
++
++Function: Imaginary part of "ccos":
++double: 1
++float: 1
++
++Function: Real part of "ccos_downward":
++double: 1
++float: 1
++
++Function: Imaginary part of "ccos_downward":
++double: 3
++float: 3
++
++Function: Real part of "ccos_towardzero":
++double: 1
++float: 2
++
++Function: Imaginary part of "ccos_towardzero":
++double: 3
++float: 3
++
++Function: Real part of "ccos_upward":
++double: 1
++float: 2
++
++Function: Imaginary part of "ccos_upward":
++double: 2
++float: 2
++
++Function: Real part of "ccosh":
++double: 1
++float: 1
++
++Function: Imaginary part of "ccosh":
++double: 1
++float: 1
++
++Function: Real part of "ccosh_downward":
++double: 2
++float: 2
++
++Function: Imaginary part of "ccosh_downward":
++double: 3
++float: 3
++
++Function: Real part of "ccosh_towardzero":
++double: 2
++float: 3
++
++Function: Imaginary part of "ccosh_towardzero":
++double: 3
++float: 3
++
++Function: Real part of "ccosh_upward":
++double: 1
++float: 2
++
++Function: Imaginary part of "ccosh_upward":
++double: 2
++float: 2
++
++Function: Real part of "cexp":
++double: 2
++float: 1
++
++Function: Imaginary part of "cexp":
++double: 1
++float: 2
++
++Function: Real part of "cexp_downward":
++double: 2
++float: 2
++
++Function: Imaginary part of "cexp_downward":
++double: 3
++float: 3
++
++Function: Real part of "cexp_towardzero":
++double: 2
++float: 2
++
++Function: Imaginary part of "cexp_towardzero":
++double: 3
++float: 3
++
++Function: Real part of "cexp_upward":
++double: 2
++float: 2
++
++Function: Imaginary part of "cexp_upward":
++double: 3
++float: 2
++
++Function: Real part of "clog":
++double: 3
++float: 3
++
++Function: Imaginary part of "clog":
++double: 1
++float: 1
++
++Function: Real part of "clog10":
++double: 3
++float: 4
++
++Function: Imaginary part of "clog10":
++double: 2
++float: 2
++
++Function: Real part of "clog10_downward":
++double: 5
++float: 5
++
++Function: Imaginary part of "clog10_downward":
++double: 2
++float: 4
++
++Function: Real part of "clog10_towardzero":
++double: 5
++float: 6
++
++Function: Imaginary part of "clog10_towardzero":
++double: 2
++float: 4
++
++Function: Real part of "clog10_upward":
++double: 6
++float: 5
++
++Function: Imaginary part of "clog10_upward":
++double: 2
++float: 4
++
++Function: Real part of "clog_downward":
++double: 4
++float: 3
++
++Function: Imaginary part of "clog_downward":
++double: 1
++float: 2
++
++Function: Real part of "clog_towardzero":
++double: 4
++float: 4
++
++Function: Imaginary part of "clog_towardzero":
++double: 1
++float: 3
++
++Function: Real part of "clog_upward":
++double: 4
++float: 3
++
++Function: Imaginary part of "clog_upward":
++double: 1
++float: 2
++
++Function: "cos":
++double: 1
++float: 1
++
++Function: "cos_downward":
++double: 1
++float: 1
++
++Function: "cos_towardzero":
++double: 1
++float: 1
++
++Function: "cos_upward":
++double: 1
++float: 1
++
++Function: "cosh":
++double: 2
++float: 2
++
++Function: "cosh_downward":
++double: 3
++float: 2
++
++Function: "cosh_towardzero":
++double: 3
++float: 2
++
++Function: "cosh_upward":
++double: 2
++float: 2
++
++Function: Real part of "cpow":
++double: 2
++float: 5
++
++Function: Imaginary part of "cpow":
++float: 2
++
++Function: Real part of "cpow_downward":
++double: 5
++float: 8
++
++Function: Imaginary part of "cpow_downward":
++double: 1
++float: 2
++
++Function: Real part of "cpow_towardzero":
++double: 5
++float: 8
++
++Function: Imaginary part of "cpow_towardzero":
++double: 1
++float: 2
++
++Function: Real part of "cpow_upward":
++double: 4
++float: 1
++
++Function: Imaginary part of "cpow_upward":
++double: 1
++float: 2
++
++Function: Real part of "csin":
++double: 1
++float: 1
++
++Function: Real part of "csin_downward":
++double: 3
++float: 3
++
++Function: Imaginary part of "csin_downward":
++double: 1
++float: 1
++
++Function: Real part of "csin_towardzero":
++double: 3
++float: 3
++
++Function: Imaginary part of "csin_towardzero":
++double: 1
++float: 1
++
++Function: Real part of "csin_upward":
++double: 2
++float: 2
++
++Function: Imaginary part of "csin_upward":
++double: 1
++float: 2
++
++Function: Real part of "csinh":
++float: 1
++
++Function: Imaginary part of "csinh":
++double: 1
++float: 1
++
++Function: Real part of "csinh_downward":
++double: 2
++float: 1
++
++Function: Imaginary part of "csinh_downward":
++double: 3
++float: 3
++
++Function: Real part of "csinh_towardzero":
++double: 2
++float: 2
++
++Function: Imaginary part of "csinh_towardzero":
++double: 3
++float: 3
++
++Function: Real part of "csinh_upward":
++double: 1
++float: 2
++
++Function: Imaginary part of "csinh_upward":
++double: 2
++float: 2
++
++Function: Real part of "csqrt":
++double: 2
++float: 2
++
++Function: Imaginary part of "csqrt":
++double: 2
++float: 2
++
++Function: Real part of "csqrt_downward":
++double: 5
++float: 4
++
++Function: Imaginary part of "csqrt_downward":
++double: 4
++float: 3
++
++Function: Real part of "csqrt_towardzero":
++double: 4
++float: 3
++
++Function: Imaginary part of "csqrt_towardzero":
++double: 4
++float: 3
++
++Function: Real part of "csqrt_upward":
++double: 5
++float: 4
++
++Function: Imaginary part of "csqrt_upward":
++double: 3
++float: 3
++
++Function: Real part of "ctan":
++double: 1
++float: 1
++
++Function: Imaginary part of "ctan":
++double: 2
++float: 2
++
++Function: Real part of "ctan_downward":
++double: 6
++float: 5
++
++Function: Imaginary part of "ctan_downward":
++double: 2
++float: 2
++
++Function: Real part of "ctan_towardzero":
++double: 5
++float: 2
++
++Function: Imaginary part of "ctan_towardzero":
++double: 2
++float: 2
++
++Function: Real part of "ctan_upward":
++double: 2
++float: 4
++
++Function: Imaginary part of "ctan_upward":
++double: 1
++float: 2
++
++Function: Real part of "ctanh":
++double: 2
++float: 2
++
++Function: Imaginary part of "ctanh":
++double: 2
++float: 2
++
++Function: Real part of "ctanh_downward":
++double: 2
++float: 2
++
++Function: Imaginary part of "ctanh_downward":
++double: 6
++float: 5
++
++Function: Real part of "ctanh_towardzero":
++double: 2
++float: 2
++
++Function: Imaginary part of "ctanh_towardzero":
++double: 5
++float: 2
++
++Function: Real part of "ctanh_upward":
++double: 1
++float: 2
++
++Function: Imaginary part of "ctanh_upward":
++double: 3
++float: 3
++
++Function: "erf":
++double: 1
++float: 1
++
++Function: "erf_downward":
++double: 1
++float: 1
++
++Function: "erf_towardzero":
++double: 1
++float: 1
++
++Function: "erf_upward":
++double: 1
++float: 1
++
++Function: "erfc":
++double: 3
++float: 3
++
++Function: "erfc_downward":
++double: 4
++float: 4
++
++Function: "erfc_towardzero":
++double: 3
++float: 3
++
++Function: "erfc_upward":
++double: 4
++float: 4
++
++Function: "exp":
++double: 1
++float: 1
++
++Function: "exp10":
++double: 2
++float: 1
++
++Function: "exp10_downward":
++double: 3
++float: 1
++
++Function: "exp10_towardzero":
++double: 3
++float: 1
++
++Function: "exp10_upward":
++double: 2
++float: 1
++
++Function: "exp2":
++double: 1
++
++Function: "exp2_downward":
++double: 1
++float: 1
++
++Function: "exp2_towardzero":
++double: 1
++float: 1
++
++Function: "exp2_upward":
++double: 1
++float: 1
++
++Function: "exp_downward":
++double: 1
++float: 1
++
++Function: "exp_towardzero":
++double: 1
++float: 1
++
++Function: "exp_upward":
++double: 1
++float: 1
++
++Function: "expm1":
++double: 1
++float: 1
++
++Function: "expm1_downward":
++double: 1
++float: 1
++
++Function: "expm1_towardzero":
++double: 1
++float: 2
++
++Function: "expm1_upward":
++double: 1
++float: 1
++
++Function: "gamma":
++double: 4
++float: 7
++
++Function: "gamma_downward":
++double: 4
++float: 4
++
++Function: "gamma_towardzero":
++double: 4
++float: 3
++
++Function: "gamma_upward":
++double: 4
++float: 5
++
++Function: "hypot":
++double: 1
++float: 1
++
++Function: "hypot_downward":
++double: 1
++float: 1
++
++Function: "hypot_towardzero":
++double: 1
++float: 1
++
++Function: "hypot_upward":
++double: 1
++float: 1
++
++Function: "j0":
++double: 4
++float: 9
++
++Function: "j0_downward":
++double: 6
++float: 8
++
++Function: "j0_towardzero":
++double: 4
++float: 9
++
++Function: "j0_upward":
++double: 4
++float: 9
++
++Function: "j1":
++double: 3
++float: 9
++
++Function: "j1_downward":
++double: 9
++float: 9
++
++Function: "j1_towardzero":
++double: 5
++float: 9
++
++Function: "j1_upward":
++double: 5
++float: 8
++
++Function: "jn":
++double: 4
++float: 4
++
++Function: "jn_downward":
++double: 4
++float: 5
++
++Function: "jn_towardzero":
++double: 4
++float: 5
++
++Function: "jn_upward":
++double: 5
++float: 5
++
++Function: "lgamma":
++double: 4
++float: 7
++
++Function: "lgamma_downward":
++double: 4
++float: 4
++
++Function: "lgamma_towardzero":
++double: 4
++float: 3
++
++Function: "lgamma_upward":
++double: 4
++float: 5
++
++Function: "log":
++double: 1
++
++Function: "log10":
++double: 2
++float: 2
++
++Function: "log10_downward":
++double: 2
++float: 3
++
++Function: "log10_towardzero":
++double: 2
++float: 2
++
++Function: "log10_upward":
++double: 2
++float: 2
++
++Function: "log1p":
++double: 1
++float: 1
++
++Function: "log1p_downward":
++double: 1
++float: 2
++
++Function: "log1p_towardzero":
++double: 2
++float: 2
++
++Function: "log1p_upward":
++double: 2
++float: 2
++
++Function: "log2":
++double: 2
++float: 1
++
++Function: "log2_downward":
++double: 1
++float: 1
++
++Function: "log2_towardzero":
++double: 1
++float: 1
++
++Function: "log2_upward":
++double: 1
++float: 1
++
++Function: "log_downward":
++double: 1
++float: 1
++
++Function: "log_towardzero":
++double: 1
++float: 1
++
++Function: "log_upward":
++double: 1
++float: 1
++
++Function: "pow":
++double: 1
++
++Function: "pow_downward":
++double: 1
++float: 1
++
++Function: "pow_towardzero":
++double: 1
++float: 1
++
++Function: "pow_upward":
++double: 1
++float: 1
++
++Function: "sin":
++double: 1
++float: 1
++
++Function: "sin_downward":
++double: 1
++float: 1
++
++Function: "sin_towardzero":
++double: 1
++float: 1
++
++Function: "sin_upward":
++double: 1
++float: 1
++
++Function: "sincos":
++double: 1
++float: 1
++
++Function: "sincos_downward":
++double: 1
++float: 1
++
++Function: "sincos_towardzero":
++double: 1
++float: 1
++
++Function: "sincos_upward":
++double: 1
++float: 1
++
++Function: "sinh":
++double: 2
++float: 2
++
++Function: "sinh_downward":
++double: 3
++float: 3
++
++Function: "sinh_towardzero":
++double: 3
++float: 2
++
++Function: "sinh_upward":
++double: 3
++float: 3
++
++Function: "tan":
++float: 1
++
++Function: "tan_downward":
++double: 1
++float: 2
++
++Function: "tan_towardzero":
++double: 1
++float: 1
++
++Function: "tan_upward":
++double: 1
++float: 1
++
++Function: "tanh":
++double: 2
++float: 2
++
++Function: "tanh_downward":
++double: 3
++float: 3
++
++Function: "tanh_towardzero":
++double: 2
++float: 2
++
++Function: "tanh_upward":
++double: 3
++float: 3
++
++Function: "tgamma":
++double: 9
++float: 8
++
++Function: "tgamma_downward":
++double: 9
++float: 7
++
++Function: "tgamma_towardzero":
++double: 9
++float: 7
++
++Function: "tgamma_upward":
++double: 8
++float: 8
++
++Function: "y0":
++double: 3
++float: 8
++
++Function: "y0_downward":
++double: 3
++float: 8
++
++Function: "y0_towardzero":
++double: 3
++float: 8
++
++Function: "y0_upward":
++double: 2
++float: 8
++
++Function: "y1":
++double: 3
++float: 9
++
++Function: "y1_downward":
++double: 6
++float: 8
++
++Function: "y1_towardzero":
++double: 3
++float: 9
++
++Function: "y1_upward":
++double: 6
++float: 9
++
++Function: "yn":
++double: 3
++float: 3
++
++Function: "yn_downward":
++double: 3
++float: 4
++
++Function: "yn_towardzero":
++double: 3
++float: 3
++
++Function: "yn_upward":
++double: 4
++float: 5
++
++# end of automatic generation
+diff --git a/sysdeps/arc/arc64/fpu/libm-test-ulps-name b/sysdeps/arc/arc64/fpu/libm-test-ulps-name
+new file mode 100644
+index 0000000000..8c4fba4f9a
+--- /dev/null
++++ b/sysdeps/arc/arc64/fpu/libm-test-ulps-name
+@@ -0,0 +1 @@
++ARC
+diff --git a/sysdeps/arc/nofpu/libm-test-ulps b/sysdeps/arc/arc64/nofpu/libm-test-ulps
+similarity index 99%
+copy from sysdeps/arc/nofpu/libm-test-ulps
+copy to sysdeps/arc/arc64/nofpu/libm-test-ulps
+index 6ac2830b25..26632ff8f2 100644
+--- a/sysdeps/arc/nofpu/libm-test-ulps
++++ b/sysdeps/arc/arc64/nofpu/libm-test-ulps
+@@ -205,6 +205,7 @@ float: 7
+
+ Function: "hypot":
+ double: 1
++float: 1
+
+ Function: "j0":
+ double: 2
+diff --git a/sysdeps/arc/arc64/nofpu/libm-test-ulps-name b/sysdeps/arc/arc64/nofpu/libm-test-ulps-name
+new file mode 100644
+index 0000000000..8a9879ebd6
+--- /dev/null
++++ b/sysdeps/arc/arc64/nofpu/libm-test-ulps-name
+@@ -0,0 +1 @@
++ARC soft-float
+diff --git a/sysdeps/arc/atomic-machine.h b/sysdeps/arc/atomic-machine.h
+index 6ac3d87dd9..f1565b317b 100644
+--- a/sysdeps/arc/atomic-machine.h
++++ b/sysdeps/arc/atomic-machine.h
+@@ -19,7 +19,23 @@
+ #ifndef _ARC_BITS_ATOMIC_H
+ #define _ARC_BITS_ATOMIC_H 1
+
+-#define __HAVE_64B_ATOMICS 0
++#include <stdint.h>
++
++typedef int32_t atomic32_t;
++typedef uint32_t uatomic32_t;
++typedef int64_t atomic64_t;
++typedef uint64_t uatomic64_t;
++
++typedef intptr_t atomicptr_t;
++typedef uintptr_t uatomicptr_t;
++typedef intmax_t atomic_max_t;
++typedef uintmax_t uatomic_max_t;
++
++# if defined(__ARC64_ARCH64__)
++# define __HAVE_64B_ATOMICS 1
++# else
++# define __HAVE_64B_ATOMICS 0
++# endif
+ #define USE_ATOMIC_COMPILER_BUILTINS 1
+
+ /* ARC does have legacy atomic EX reg, [mem] instruction but the micro-arch
+@@ -30,15 +46,16 @@
+ (abort (), 0)
+ #define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
+ (abort (), 0)
+-#define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
+- (abort (), 0)
++
++# if !defined(__ARC64__)
++# define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
++ (abort (), 0)
++#endif
+
+ #define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \
+ (abort (), (__typeof (*mem)) 0)
+ #define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \
+ (abort (), (__typeof (*mem)) 0)
+-#define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
+- (abort (), (__typeof (*mem)) 0)
+
+ #define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \
+ ({ \
+@@ -48,6 +65,20 @@
+ __oldval; \
+ })
+
++# if defined(__ARC64__)
++# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
++ ({ \
++ typeof (*mem) __oldval = (oldval); \
++ __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \
++ model, __ATOMIC_RELAXED); \
++ __oldval; \
++ })
++# else
++/* ARCv2 has LOCKD/SCOND but not sure if gcc atomic builtins exist. */
++# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
++ (abort (), (__typeof (*mem)) 0)
++#endif
++
+ #define atomic_compare_and_exchange_val_acq(mem, new, old) \
+ __atomic_val_bysize (__arch_compare_and_exchange_val, int, \
+ mem, new, old, __ATOMIC_ACQUIRE)
+diff --git a/sysdeps/arc/bits/setjmp.h b/sysdeps/arc/bits/setjmp.h
+index d1604cde1f..2ca85a679d 100644
+--- a/sysdeps/arc/bits/setjmp.h
++++ b/sysdeps/arc/bits/setjmp.h
+@@ -20,7 +20,11 @@
+ #define _ARC_BITS_SETJMP_H 1
+
+ /* Saves r13-r25 (callee-saved), fp (frame pointer), sp (stack pointer),
+- blink (branch-n-link). */
++ blink (branch-n-link), FP regs. */
++#if defined (__ARC_FLOAT_ABI_HARD__)
++typedef long int __jmp_buf[64];
++#else
+ typedef long int __jmp_buf[32];
++#endif
+
+ #endif
+diff --git a/sysdeps/arc/configure b/sysdeps/arc/configure
+index 7b27e26490..d7b19db793 100644
+--- a/sysdeps/arc/configure
++++ b/sysdeps/arc/configure
+@@ -10,7 +10,7 @@ libc_cv_asm_line_sep='`'
+ printf "%s\n" "#define ASM_LINE_SEP $libc_cv_asm_line_sep" >>confdefs.h
+
+
+-# For big endian ABI, generate a symbol for selecting right dynamic linker
++# For arc64:64 generate a symbol for selecting right dynamic linker
+
+
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+@@ -155,6 +155,77 @@ printf "%s\n" "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
++{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for arc64" >&5
++printf %s "checking for arc64... " >&6; }
++if test ${libc_cv_arc64+y}
++then :
++ printf %s "(cached) " >&6
++else $as_nop
++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h. */
++#ifdef __ARC64_ARCH64__
++ yes
++ #endif
++
++_ACEOF
++if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
++ $EGREP "yes" >/dev/null 2>&1
++then :
++ libc_cv_arc64=yes
++else $as_nop
++ libc_cv_arc64=no
++fi
++rm -rf conftest*
++
++fi
++{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arc64" >&5
++printf "%s\n" "$libc_cv_arc64" >&6; }
++if test $libc_cv_arc64 = yes; then
++ # For shlib-versions.
++ printf "%s\n" "#define HAVE_ARC64 1" >>confdefs.h
++
++ config_vars="$config_vars
++default-abi = arc64le"
++
++else
++
++# For arc64:32 generate a symbol for selecting right dynamic linker
++{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for arc32" >&5
++printf %s "checking for arc32... " >&6; }
++if test ${libc_cv_arc32+y}
++then :
++ printf %s "(cached) " >&6
++else $as_nop
++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h. */
++#ifdef __ARC64_ARCH32__
++ yes
++ #endif
++
++_ACEOF
++if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
++ $EGREP "yes" >/dev/null 2>&1
++then :
++ libc_cv_arc32=yes
++else $as_nop
++ libc_cv_arc32=no
++fi
++rm -rf conftest*
++
++fi
++{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arc32" >&5
++printf "%s\n" "$libc_cv_arc32" >&6; }
++
++if test $libc_cv_arc32 = yes; then
++ # For shlib-versions.
++ printf "%s\n" "#define HAVE_ARC32 1" >>confdefs.h
++
++ config_vars="$config_vars
++default-abi = arc32le"
++
++else
++
++# For big endian ABI, generate a symbol for selecting right dynamic linker
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for big endian" >&5
+ printf %s "checking for big endian... " >&6; }
+ if test ${libc_cv_arc_be+y}
+@@ -189,5 +260,12 @@ default-abi = arcbe"
+ else
+ config_vars="$config_vars
+ default-abi = arcle"
++# big endian
++fi
++
++# arc64:32
++fi
++
++# arc64:64
+ fi
+
+diff --git a/sysdeps/arc/configure.ac b/sysdeps/arc/configure.ac
+index 619da4e088..4e84f17105 100644
+--- a/sysdeps/arc/configure.ac
++++ b/sysdeps/arc/configure.ac
+@@ -9,6 +9,35 @@ libc_cv_have_sdata_section=no
+ libc_cv_asm_line_sep='`'
+ AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
+
++# For arc64:64 generate a symbol for selecting right dynamic linker
++AC_CACHE_CHECK([for arc64],
++ [libc_cv_arc64],
++ [AC_EGREP_CPP(yes,[#ifdef __ARC64_ARCH64__
++ yes
++ #endif
++ ], libc_cv_arc64=yes, libc_cv_arc64=no)])
++if test $libc_cv_arc64 = yes; then
++ # For shlib-versions.
++ AC_DEFINE(HAVE_ARC64)
++ LIBC_CONFIG_VAR([default-abi], [arc64le])
++
++else
++
++# For arc64:32 generate a symbol for selecting right dynamic linker
++AC_CACHE_CHECK([for arc32],
++ [libc_cv_arc32],
++ [AC_EGREP_CPP(yes,[#ifdef __ARC64_ARCH32__
++ yes
++ #endif
++ ], libc_cv_arc32=yes, libc_cv_arc32=no)])
++
++if test $libc_cv_arc32 = yes; then
++ # For shlib-versions.
++ AC_DEFINE(HAVE_ARC32)
++ LIBC_CONFIG_VAR([default-abi], [arc32le])
++
++else
++
+ # For big endian ABI, generate a symbol for selecting right dynamic linker
+ AC_CACHE_CHECK([for big endian],
+ [libc_cv_arc_be],
+@@ -22,4 +51,11 @@ if test $libc_cv_arc_be = yes; then
+ LIBC_CONFIG_VAR([default-abi], [arcbe])
+ else
+ LIBC_CONFIG_VAR([default-abi], [arcle])
++# big endian
++fi
++
++# arc64:32
++fi
++
++# arc64:64
+ fi
+diff --git a/sysdeps/arc/dl-machine.h b/sysdeps/arc/dl-machine.h
+index 4dc652a449..dbb7394c27 100644
+--- a/sysdeps/arc/dl-machine.h
++++ b/sysdeps/arc/dl-machine.h
+@@ -32,18 +32,19 @@
+ #include <dl-tls.h>
+ #include <dl-static-tls.h>
+ #include <dl-machine-rel.h>
++#include <sysdep.h>
+
+ /* Dynamic Linking ABI for ARCv2 ISA.
+
+- PLT
++ .plt
+ -------------------------------- <---- DT_PLTGOT
+ | ld r11, [pcl, off-to-GOT[1] | 0
+ | | 4
+- plt0 | ld r10, [pcl, off-to-GOT[2] | 8
++ PLT0 | ld r10, [pcl, off-to-GOT[2] | 8
+ | | 12
+ | j [r10] | 16
+ --------------------------------
+- | Base address of GOT | 20
++ | Base address of .got.plt | 20
+ --------------------------------
+ | ld r12, [pcl, off-to-GOT[3] | 24
+ plt1 | |
+@@ -69,11 +70,11 @@
+ --------------
+ | [1] | Module info - setup by ld.so
+ --------------
+- | [2] | resolver entry point
++ | [2] | resolver entry point: _dl_runtime_resolve
+ --------------
+ | [3] |
+ | ... | Runtime address for function symbols
+- | [f] |
++ | [f] | Initially point to PLT0
+ --------------
+
+ For ARCompact, the PLT is 12 bytes due to short instructions
+@@ -91,6 +92,8 @@ static inline int
+ elf_machine_matches_host (const ElfW(Ehdr) *ehdr)
+ {
+ return (ehdr->e_machine == EM_ARCV2 /* ARC HS. */
++ || ehdr->e_machine == EM_ARCV3 /* ARCv3: ARC64. */
++ || ehdr->e_machine == EM_ARCV3_32 /* ARCv3: ARC32. */
+ || ehdr->e_machine == EM_ARC_COMPACT); /* ARC 700. */
+ }
+
+@@ -114,7 +117,7 @@ elf_machine_load_address (void)
+ /* For build address, below generates
+ ld r0, [pcl, _GLOBAL_OFFSET_TABLE_@pcl]. */
+ build_addr = elf_machine_dynamic ();
+- __asm__ ("add %0, pcl, _DYNAMIC@pcl \n" : "=r" (run_addr));
++ __asm__ ("ADDR %0, pcl, _DYNAMIC@pcl \n" : "=r" (run_addr));
+
+ return run_addr - build_addr;
+ }
+@@ -131,10 +134,13 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
+
+ if (l->l_info[DT_JMPREL] && lazy)
+ {
+- /* On ARC DT_PLTGOT point to .plt whose 5th word (after the PLT header)
+- contains the address of .got. */
++ /* update .got.plt[1] and .got.plt[2].
++ DT_PLTGOT point to base of .plt and PLT0 is 3 instructions
++ for total of 20 bytes, see illustration at top.
++ The word right after contains base address of .got.plt. */
+ ElfW(Addr) *plt_base = (ElfW(Addr) *) D_PTR (l, l_info[DT_PLTGOT]);
+- ElfW(Addr) *got = (ElfW(Addr) *) (plt_base[5] + l->l_addr);
++ ElfW(Addr) *got_build = (ElfW(Addr) *) ((uintptr_t)plt_base + 20);
++ ElfW(Addr) *got = (ElfW(Addr) *) (*got_build + l->l_addr);
+
+ got[1] = (ElfW(Addr)) l; /* Identify this shared object. */
+
+@@ -152,6 +158,8 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
+ -optionally adjusts argc for executable if exec passed as cmd
+ -calls into app main with address of finaliser. */
+
++#ifdef __ARC64_ARCH64__
++
+ #define RTLD_START asm ("\
+ .text \n\
+ .globl __start \n\
+@@ -159,25 +167,55 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
+ __start: \n\
+ /* (1). bootstrap ld.so. */ \n\
+ bl.d _dl_start \n\
+- mov_s r0, sp /* pass ptr to aux vector tbl. */ \n\
+- mov r13, r0 /* safekeep app elf entry point. */ \n\
+- ld_s r1, [sp] /* orig argc. */ \n\
++ MOVR r0, sp /* pass ptr to aux vector tbl. */ \n\
++ MOVR r14, r0 /* safekeep app elf entry point. */ \n\
++ LDR r1, sp /* orig argc. */ \n\
+ \n\
+ /* (2). call preinit stuff. */ \n\
+- ld r0, [pcl, _rtld_local@pcl] \n\
+- add r2, sp, 4 ; argv \n\
+- add2 r3, r2, r1 \n\
+- add r3, r3, 4 ; env \n\
++ LDR r0, pcl, _rtld_local@pcl \n\
++ ADDR r2, sp, 8 ; argv \n\
++ ADD3R r3, r2, r1 \n\
++ ADDR r3, r3, 8 ; env \n\
+ bl _dl_init@plt \n\
+ \n\
+ /* (3) call app elf entry point. */ \n\
+- add r0, pcl, _dl_fini@pcl \n\
+- j [r13] \n\
++ ADDR r0, pcl, _dl_fini@pcl \n\
++ j [r14] \n\
+ \n\
+ .size __start,.-__start \n\
+ .previous \n\
+ ");
+
++#else
++
++#define RTLD_START asm ("\
++.text \n\
++.globl __start \n\
++.type __start, @function \n\
++__start: \n\
++ /* (1). bootstrap ld.so. */ \n\
++ bl.d _dl_start \n\
++ MOVR r0, sp /* pass ptr to aux vector tbl. */ \n\
++ MOVR r14, r0 /* safekeep app elf entry point. */ \n\
++ LDR r1, sp /* orig argc. */ \n\
++ \n\
++ /* (2). call preinit stuff. */ \n\
++ LDR r0, pcl, _rtld_local@pcl \n\
++ ADDR r2, sp, 4 ; argv \n\
++ ADD2R r3, r2, r1 \n\
++ ADDR r3, r3, 4 ; env \n\
++ bl _dl_init@plt \n\
++ \n\
++ /* (3) call app elf entry point. */ \n\
++ ADDR r0, pcl, _dl_fini@pcl \n\
++ j [r14] \n\
++ \n\
++ .size __start,.-__start \n\
++ .previous \n\
++");
++
++#endif
++
+ /* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
+ PLT entries should not be allowed to define the value.
+ ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
+@@ -289,6 +327,7 @@ elf_machine_rela (struct link_map *map, struct r_scope_elem *scope[],
+ break;
+
+ case R_ARC_32:
++ case R_ARC_64:
+ *reloc_addr += value + reloc->r_addend;
+ break;
+
+diff --git a/sysdeps/arc/dl-trampoline.S b/sysdeps/arc/dl-trampoline.S
+index 1b307a616f..386009d41e 100644
+--- a/sysdeps/arc/dl-trampoline.S
++++ b/sysdeps/arc/dl-trampoline.S
+@@ -31,42 +31,71 @@
+ ENTRY (_dl_runtime_resolve)
+
+ /* save args to func being resolved before entering resolver. */
+- push_s r0
+- push_s r1
+- push_s r2
+- push_s r3
+- st.a r4, [sp, -4]
+- st.a r5, [sp, -4]
+- st.a r6, [sp, -4]
+- st.a r7, [sp, -4]
+- st.a r8, [sp, -4]
+- st.a r9, [sp, -4]
+- cfi_adjust_cfa_offset (40)
+- push_s blink
+- cfi_adjust_cfa_offset (4)
++ PUSHR r0
++ PUSHR r1
++ PUSHR r2
++ PUSHR r3
++ PUSHR r4
++ PUSHR r5
++ PUSHR r6
++ PUSHR r7
++ PUSHR r8
++ PUSHR r9
++
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ FPUSHR f0
++ FPUSHR f1
++ FPUSHR f2
++ FPUSHR f3
++ FPUSHR f4
++ FPUSHR f5
++ FPUSHR f6
++ FPUSHR f7
++ cfi_adjust_cfa_offset (18*REGSZ)
++#else
++ cfi_adjust_cfa_offset (10*REGSZ)
++#endif
++
++ PUSHR blink
++ cfi_adjust_cfa_offset (REGSZ)
+ cfi_rel_offset (blink, 0)
+
+- mov_s r1, r12
++ MOVR r1, r12
+ bl.d _dl_fixup
+- mov r0, r11
++ MOVR r0, r11
+
+ /* restore regs back. */
+- ld.ab blink,[sp, 4]
+- cfi_adjust_cfa_offset (-4)
++ POPR blink
++ cfi_adjust_cfa_offset (-REGSZ)
+ cfi_restore (blink)
+- ld.ab r9, [sp, 4]
+- ld.ab r8, [sp, 4]
+- ld.ab r7, [sp, 4]
+- ld.ab r6, [sp, 4]
+- ld.ab r5, [sp, 4]
+- ld.ab r4, [sp, 4]
+- pop_s r3
+- pop_s r2
+- pop_s r1
+- cfi_adjust_cfa_offset (-36)
+
+- j_s.d [r0] /* r0 has resolved function addr. */
+- pop_s r0 /* restore first arg to resolved call. */
+- cfi_adjust_cfa_offset (-4)
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ FPOPR f7
++ FPOPR f6
++ FPOPR f5
++ FPOPR f4
++ FPOPR f3
++ FPOPR f2
++ FPOPR f1
++ FPOPR f0
++#endif
++ POPR r9
++ POPR r8
++ POPR r7
++ POPR r6
++ POPR r5
++ POPR r4
++ POPR r3
++ POPR r2
++ POPR r1
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ cfi_adjust_cfa_offset (-17*REGSZ)
++#else
++ cfi_adjust_cfa_offset (-9*REGSZ)
++#endif
++
++ j.d [r0] /* r0 has resolved function addr. */
++ POPR r0 /* restore first arg to resolved call. */
++ cfi_adjust_cfa_offset (-REGSZ)
+ cfi_restore (r0)
+ END (_dl_runtime_resolve)
+diff --git a/sysdeps/arc/fpu/math-use-builtins-fma.h b/sysdeps/arc/fpu/math-use-builtins-fma.h
+index 2acd8113ce..59c7ed0343 100644
+--- a/sysdeps/arc/fpu/math-use-builtins-fma.h
++++ b/sysdeps/arc/fpu/math-use-builtins-fma.h
+@@ -1,13 +1,17 @@
+-#if defined __ARC_FPU_DP_FMA__
++#if defined __ARCV3__
+ # define USE_FMA_BUILTIN 1
+-#else
+-# define USE_FMA_BUILTIN 0
+-#endif
+-
+-#if defined __ARC_FPU_SP_FMA__
+ # define USE_FMAF_BUILTIN 1
+ #else
+-# define USE_FMAF_BUILTIN 0
++# if defined __ARC_FPU_DP_FMA__
++# define USE_FMA_BUILTIN 1
++# else
++# define USE_FMA_BUILTIN 0
++# endif
++# if defined __ARC_FPU_SP_FMA__
++# define USE_FMAF_BUILTIN 1
++# else
++# define USE_FMAF_BUILTIN 0
++# endif
+ #endif
+
+ #define USE_FMAL_BUILTIN 0
+diff --git a/sysdeps/arc/fpu/math-use-builtins-sqrt.h b/sysdeps/arc/fpu/math-use-builtins-sqrt.h
+index a449bc6092..40a07730ea 100644
+--- a/sysdeps/arc/fpu/math-use-builtins-sqrt.h
++++ b/sysdeps/arc/fpu/math-use-builtins-sqrt.h
+@@ -1,13 +1,17 @@
+-#if defined __ARC_FPU_DP_DIV__
++#if defined __ARCV3__
+ # define USE_SQRT_BUILTIN 1
+-#else
+-# define USE_SQRT_BUILTIN 0
+-#endif
+-
+-#if defined __ARC_FPU_SP_DIV__
+ # define USE_SQRTF_BUILTIN 1
+ #else
+-# define USE_SQRTF_BUILTIN 0
++# if defined __ARC_FPU_DP_DIV__
++# define USE_SQRT_BUILTIN 1
++# else
++# define USE_SQRT_BUILTIN 0
++# endif
++# if defined __ARC_FPU_SP_DIV__
++# define USE_SQRTF_BUILTIN 1
++# else
++# define USE_SQRTF_BUILTIN 0
++# endif
+ #endif
+
+ #define USE_SQRTL_BUILTIN 0
+diff --git a/sysdeps/arc/isa-asm-macro-32.h b/sysdeps/arc/isa-asm-macro-32.h
+new file mode 100644
+index 0000000000..98cd249059
+--- /dev/null
++++ b/sysdeps/arc/isa-asm-macro-32.h
+@@ -0,0 +1,61 @@
++# define REGSZ 4
++
++.irp aa,,.as
++.macro LDR\aa d, s, off=0
++ ld\aa \d, [\s, \off]
++.endm
++.endr
++
++.irp aa,,.as
++.macro STR\aa d, s, off=0
++ st\aa \d, [\s, \off]
++.endm
++.endr
++
++.macro PUSHR r
++ push \r
++.endm
++
++.macro POPR r
++ pop \r
++.endm
++
++.irp cc,,.f
++.macro MOVR\cc d, s
++ mov\cc \d, \s
++.endm
++.endr
++
++.irp cc,,.nz
++.macro ADDR\cc d, s, v
++ add\cc \d, \s, \v
++.endm
++.endr
++
++.macro ADD2R d, s, v
++ add2 \d, \s, \v
++.endm
++
++.macro ADD3R d, s, v
++ add3 \d, \s, \v
++.endm
++
++.macro SUBR d, s, v
++ sub \d, \s, \v
++.endm
++
++.macro ANDR d, s, v
++ and \d, \s, \v
++.endm
++
++.irp cc,,eq,hi
++.macro BRR\cc d, s, v
++ br\cc \d, \s, \v
++.endm
++.endr
++
++.irp cc,,.ne
++.macro CMPR\cc d, s
++ cmp\cc \d, \s
++.endm
++.endr
+diff --git a/sysdeps/arc/isa-asm-macro-64.h b/sysdeps/arc/isa-asm-macro-64.h
+new file mode 100644
+index 0000000000..02b1dc2c37
+--- /dev/null
++++ b/sysdeps/arc/isa-asm-macro-64.h
+@@ -0,0 +1,86 @@
++# define REGSZ 8
++
++.irp aa,,.as
++.macro LDR\aa d, s, off=0
++ ldl\aa \d, [\s, \off]
++.endm
++.endr
++
++.irp aa,,.as
++.macro STR\aa d, s, off=0
++ stl\aa \d, [\s, \off]
++.endm
++.endr
++
++.macro PUSHR r
++ pushl \r
++.endm
++
++.macro POPR r
++ popl \r
++.endm
++
++.irp cc,,.f
++.macro MOVR\cc d, s
++ movl\cc \d, \s
++.endm
++.endr
++
++.irp cc,,.nz
++.macro ADDR\cc d, s, v
++ addl\cc \d, \s, \v
++.endm
++.endr
++
++.macro ADD2R d, s, v
++ add2l \d, \s, \v
++.endm
++
++.macro ADD3R d, s, v
++ add3l \d, \s, \v
++.endm
++
++.macro SUBR d, s, v
++ subl \d, \s, \v
++.endm
++
++.macro ANDR d, s, v
++ andl \d, \s, \v
++.endm
++
++.irp cc,eq,hi
++.macro BRR\cc d, s, v
++; arc64 gas doesn't support BRHIL pseudo-instruction
++.ifeqs "\cc","hi"
++ brlo\()l \s, \d, \v
++.else
++ br\cc\()l \d, \s, \v
++.endif
++.endm
++.endr
++
++.irp cc,,.ne
++.macro CMPR\cc d, s
++ cmpl\cc \d, \s
++.endm
++.endr
++
++.irp aa,,.as,.aw,.ab
++.macro FLDR\aa d, s, off=0
++ fld64\aa \d, [\s, \off]
++.endm
++.endr
++
++.irp aa,,.as,.aw,.ab
++.macro FSTR\aa d, s, off=0
++ fst64\aa \d, [\s, \off]
++.endm
++.endr
++
++.macro FPUSHR r
++ FSTR.aw \r, sp, -REGSZ
++.endm
++
++.macro FPOPR r
++ FLDR.ab \r, sp, REGSZ
++.endm
+diff --git a/sysdeps/arc/isa-asm-macros.h b/sysdeps/arc/isa-asm-macros.h
+new file mode 100644
+index 0000000000..f9f5e4f630
+--- /dev/null
++++ b/sysdeps/arc/isa-asm-macros.h
+@@ -0,0 +1,35 @@
++/* ISA Specific Assembler macros for ARC.
++ Copyright (C) 2020 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public License as
++ published by the Free Software Foundation; either version 2.1 of the
++ License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, see
++ <https://www.gnu.org/licenses/>. */
++
++#ifdef __ASSEMBLER__
++
++# ifdef __ARC64_ARCH64__
++# include <sysdeps/arc/isa-asm-macro-64.h>
++# else
++# include <sysdeps/arc/isa-asm-macro-32.h>
++# endif
++
++#else
++
++# ifdef __ARC64_ARCH64__
++asm(".include \"sysdeps/arc/isa-asm-macro-64.h\"\n");
++# else
++asm(".include \"sysdeps/arc/isa-asm-macro-32.h\"\n");
++# endif
++
++#endif
+diff --git a/sysdeps/arc/nofpu/libm-test-ulps b/sysdeps/arc/nofpu/libm-test-ulps
+index 6ac2830b25..26632ff8f2 100644
+--- a/sysdeps/arc/nofpu/libm-test-ulps
++++ b/sysdeps/arc/nofpu/libm-test-ulps
+@@ -205,6 +205,7 @@ float: 7
+
+ Function: "hypot":
+ double: 1
++float: 1
+
+ Function: "j0":
+ double: 2
+diff --git a/sysdeps/arc/nptl/pthreaddef.h b/sysdeps/arc/nptl/pthreaddef.h
+index 336eded15c..3b51e59a35 100644
+--- a/sysdeps/arc/nptl/pthreaddef.h
++++ b/sysdeps/arc/nptl/pthreaddef.h
+@@ -23,7 +23,7 @@
+ #define ARCH_MIN_GUARD_SIZE 0
+
+ /* Required stack pointer alignment at beginning. */
+-#define STACK_ALIGN 4
++#define STACK_ALIGN 8
+
+ /* Minimal stack size after allocating thread descriptor and guard size. */
+ #define MINIMAL_REST_STACK 2048
+diff --git a/sysdeps/arc/preconfigure b/sysdeps/arc/preconfigure
+index a79db0239a..eab4af0eab 100644
+--- a/sysdeps/arc/preconfigure
++++ b/sysdeps/arc/preconfigure
+@@ -1,14 +1,22 @@
+ case "$machine" in
+ arc*)
+- base_machine=arc
+- machine=arc
++ with_fp_cond=0
++ isarc64=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | grep __LP64__| wc -l`
++
++ case "$isarc64" in
++ 0)
++ base_machine=arc
++ machine=arc/arc32
++ ;;
++ 1)
++ base_machine=arc
++ machine=arc/arc64
++ ;;
++ esac
+
+ gccfloat=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | grep __ARC_FPU_| wc -l`
+ if test "$gccfloat" != "0"; then
+ with_fp_cond=1
+- else
+- with_fp_cond=0
+ fi
+ ;;
+-
+ esac
+diff --git a/sysdeps/arc/setjmp.S b/sysdeps/arc/setjmp.S
+index 9ecdb9daae..e39b526837 100644
+--- a/sysdeps/arc/setjmp.S
++++ b/sysdeps/arc/setjmp.S
+@@ -41,24 +41,47 @@ ENTRY (__sigsetjmp)
+ that will be right next to this setjmp call-site in BLINK
+ since "C" caller of this routine will do a branch-n-link. */
+
+- STR (blink, r0, 0)
+- STR (sp, r0, 1)
+- STR (fp, r0, 2)
+- STR (gp, r0, 3)
++ STR.as blink, r0, 0
++ STR.as sp, r0, 1
++ STR.as fp, r0, 2
++ STR.as gp, r0, 3
+
+- STR (r13, r0, 4)
+- STR (r14, r0, 5)
+- STR (r15, r0, 6)
+- STR (r16, r0, 7)
+- STR (r17, r0, 8)
+- STR (r18, r0, 9)
+- STR (r19, r0, 10)
+- STR (r20, r0, 11)
+- STR (r21, r0, 12)
+- STR (r22, r0, 13)
+- STR (r23, r0, 14)
+- STR (r24, r0, 15)
++ STR.as r13, r0, 4
++ STR.as r14, r0, 5
++ STR.as r15, r0, 6
++ STR.as r16, r0, 7
++ STR.as r17, r0, 8
++ STR.as r18, r0, 9
++ STR.as r19, r0, 10
++ STR.as r20, r0, 11
++ STR.as r21, r0, 12
++ STR.as r22, r0, 13
++ STR.as r23, r0, 14
++ STR.as r24, r0, 15
+
++#if defined(__ARCV3__)
++ STR.as r25, r0, 16
++ STR.as r26, r0, 17
++#endif
++
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ FSTR.as f16, r0, 18
++ FSTR.as f17, r0, 19
++ FSTR.as f18, r0, 20
++ FSTR.as f19, r0, 21
++ FSTR.as f20, r0, 22
++ FSTR.as f21, r0, 23
++ FSTR.as f22, r0, 24
++ FSTR.as f23, r0, 25
++ FSTR.as f24, r0, 26
++ FSTR.as f25, r0, 27
++ FSTR.as f26, r0, 28
++ FSTR.as f27, r0, 29
++ FSTR.as f28, r0, 30
++ FSTR.as f29, r0, 31
++ FSTR.as f30, r0, 32
++ FSTR.as f31, r0, 33
++#endif
+ b __sigjmp_save
+
+ END (__sigsetjmp)
+diff --git a/sysdeps/arc/sfp-machine.h b/sysdeps/arc/sfp-machine.h
+index 0917a7ae17..4743b694a2 100644
+--- a/sysdeps/arc/sfp-machine.h
++++ b/sysdeps/arc/sfp-machine.h
+@@ -17,10 +17,12 @@
+ <https://www.gnu.org/licenses/>. */
+
+
+-#define _FP_W_TYPE_SIZE 32
+-#define _FP_W_TYPE unsigned long
+-#define _FP_WS_TYPE signed long
+-#define _FP_I_TYPE long
++#ifndef __ARC64__
++
++# define _FP_W_TYPE_SIZE 32
++# define _FP_W_TYPE unsigned long
++# define _FP_WS_TYPE signed long
++# define _FP_I_TYPE long
+
+ #define _FP_MUL_MEAT_S(R,X,Y) \
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+@@ -67,4 +69,49 @@
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
++#else
++
++# define _FP_W_TYPE_SIZE 64
++# define _FP_W_TYPE unsigned long long
++# define _FP_WS_TYPE signed long long
++# define _FP_I_TYPE long long
++
++# define _FP_MUL_MEAT_S(R, X, Y) \
++ _FP_MUL_MEAT_1_imm (_FP_WFRACBITS_S, R, X, Y)
++# define _FP_MUL_MEAT_D(R, X, Y) \
++ _FP_MUL_MEAT_1_wide (_FP_WFRACBITS_D, R, X, Y, umul_ppmm)
++# define _FP_MUL_MEAT_Q(R, X, Y) \
++ _FP_MUL_MEAT_2_wide_3mul (_FP_WFRACBITS_Q, R, X, Y, umul_ppmm)
++
++# define _FP_MUL_MEAT_DW_S(R, X, Y) \
++ _FP_MUL_MEAT_DW_1_imm (_FP_WFRACBITS_S, R, X, Y)
++# define _FP_MUL_MEAT_DW_D(R, X, Y) \
++ _FP_MUL_MEAT_DW_1_wide (_FP_WFRACBITS_D, R, X, Y, umul_ppmm)
++# define _FP_MUL_MEAT_DW_Q(R, X, Y) \
++ _FP_MUL_MEAT_DW_2_wide_3mul (_FP_WFRACBITS_Q, R, X, Y, umul_ppmm)
++
++# define _FP_DIV_MEAT_S(R, X, Y) _FP_DIV_MEAT_1_imm (S, R, X, Y, _FP_DIV_HELP_imm)
++# define _FP_DIV_MEAT_D(R, X, Y) _FP_DIV_MEAT_1_udiv_norm (D, R, X, Y)
++# define _FP_DIV_MEAT_Q(R, X, Y) _FP_DIV_MEAT_2_udiv (Q, R, X, Y)
++
++# define _FP_NANFRAC_S _FP_QNANBIT_S
++# define _FP_NANFRAC_D _FP_QNANBIT_D
++# define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0
++
++#define _FP_NANSIGN_S 0
++#define _FP_NANSIGN_D 0
++#define _FP_NANSIGN_Q 0
++
++#define _FP_KEEPNANFRACP 0
++#define _FP_QNANNEGATEDP 0
++
++#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
++ do { \
++ R##_s = _FP_NANSIGN_##fs; \
++ _FP_FRAC_SET_##wc (R, _FP_NANFRAC_##fs); \
++ R##_c = FP_CLS_NAN; \
++ } while (0)
++
++#endif
++
+ #define _FP_TININESS_AFTER_ROUNDING 1
+diff --git a/sysdeps/arc/start.S b/sysdeps/arc/start.S
+index db3bab6395..42ead9d302 100644
+--- a/sysdeps/arc/start.S
++++ b/sysdeps/arc/start.S
+@@ -57,12 +57,12 @@ ENTRY (ENTRY_POINT)
+ cfi_undefined (blink)
+
+ mov fp, 0
+- ld_s r1, [sp] /* argc. */
++ LDR r1, sp /* argc. */
+
+- mov_s r5, r0 /* rltd_fini. */
+- add_s r2, sp, 4 /* argv. */
+- and sp, sp, -8
+- mov r6, sp
++ MOVR r5, r0 /* rltd_fini. */
++ ADDR r2, sp, REGSZ /* argv. */
++ ANDR sp, sp, -2*REGSZ
++ MOVR r6, sp
+
+ /* __libc_start_main (main, argc, argv, init, fini, rtld_fini, stack_end). */
+
+@@ -70,10 +70,10 @@ ENTRY (ENTRY_POINT)
+ mov r4, 0 /* Used to be fini. */
+
+ #ifdef SHARED
+- ld r0, [pcl, @main@gotpc]
++ LDR r0, pcl, @main@gotpc
+ bl __libc_start_main@plt
+ #else
+- mov_s r0, main
++ MOVR r0, main
+ bl __libc_start_main
+ #endif
+
+diff --git a/sysdeps/arc/sysdep.h b/sysdeps/arc/sysdep.h
+index 4f024f6b73..ba6ecddbac 100644
+--- a/sysdeps/arc/sysdep.h
++++ b/sysdeps/arc/sysdep.h
+@@ -47,7 +47,6 @@
+
+ # define CALL_MCOUNT /* Do nothing for now. */
+
+-# define STR(reg, rbase, off) st reg, [rbase, off * 4]
+-# define LDR(reg, rbase, off) ld reg, [rbase, off * 4]
+-
+ #endif /* __ASSEMBLER__ */
++
++#include <sysdeps/arc/isa-asm-macros.h>
+diff --git a/sysdeps/unix/sysv/linux/arc/Makefile b/sysdeps/unix/sysv/linux/arc/Makefile
+index eca9a9fd3a..00d655bcd3 100644
+--- a/sysdeps/unix/sysv/linux/arc/Makefile
++++ b/sysdeps/unix/sysv/linux/arc/Makefile
+@@ -12,11 +12,13 @@ sysdep_headers += sys/cachectl.h
+ sysdep_routines += cacheflush
+ endif
+
+-abi-variants := arcle arcbe
++abi-variants := arcle arcbe arc32le arc64le
+
+ ifeq (,$(filter $(default-abi),$(abi-variants)))
+ $(error Unknown ABI $(default-abi), must be one of $(abi-variants))
+ endif
+
+-abi-arcle-condition := !defined __BIG_ENDIAN__
+-abi-arcbe-condition := defined __BIG_ENDIAN__
++abi-arcle-condition := !defined __ARC64__ && !defined __BIG_ENDIAN__
++abi-arcbe-condition := !defined __ARC64__ && defined __BIG_ENDIAN__
++abi-arc32le-condition := defined __ARC64_ARCH32__ && !defined __BIG_ENDIAN__
++abi-arc64le-condition := defined __ARC64_ARCH64__ && !defined __BIG_ENDIAN__
+diff --git a/sysdeps/unix/sysv/linux/arc/arc32/Implies b/sysdeps/unix/sysv/linux/arc/arc32/Implies
+new file mode 100644
+index 0000000000..9670973cfa
+--- /dev/null
++++ b/sysdeps/unix/sysv/linux/arc/arc32/Implies
+@@ -0,0 +1 @@
++unix/sysv/linux/arc
+diff --git a/sysdeps/unix/sysv/linux/arc/arch-syscall.h b/sysdeps/unix/sysv/linux/arc/arc32/arch-syscall.h
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/arch-syscall.h
+copy to sysdeps/unix/sysv/linux/arc/arc32/arch-syscall.h
+diff --git a/sysdeps/unix/sysv/linux/arc/c++-types.data b/sysdeps/unix/sysv/linux/arc/arc32/c++-types.data
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/c++-types.data
+copy to sysdeps/unix/sysv/linux/arc/arc32/c++-types.data
+diff --git a/sysdeps/unix/sysv/linux/arc/fixup-asm-unistd.h b/sysdeps/unix/sysv/linux/arc/arc32/fixup-asm-unistd.h
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/fixup-asm-unistd.h
+rename to sysdeps/unix/sysv/linux/arc/arc32/fixup-asm-unistd.h
+diff --git a/sysdeps/unix/sysv/linux/arc/ld.abilist b/sysdeps/unix/sysv/linux/arc/arc32/ld.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/ld.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/ld.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libBrokenLocale.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libBrokenLocale.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libanl.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libanl.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libanl.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libanl.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libc.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libc.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libc.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libc_malloc_debug.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libc_malloc_debug.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libc_malloc_debug.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libc_malloc_debug.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libcrypt.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libcrypt.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libcrypt.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libcrypt.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libdl.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libdl.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libdl.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libdl.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libm.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libm.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libm.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libm.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libpthread.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libpthread.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libpthread.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libpthread.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libresolv.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libresolv.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libresolv.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libresolv.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/librt.abilist b/sysdeps/unix/sysv/linux/arc/arc32/librt.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/librt.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/librt.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libthread_db.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libthread_db.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libthread_db.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libthread_db.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libutil.abilist b/sysdeps/unix/sysv/linux/arc/arc32/libutil.abilist
+similarity index 100%
+copy from sysdeps/unix/sysv/linux/arc/libutil.abilist
+copy to sysdeps/unix/sysv/linux/arc/arc32/libutil.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/arc64/Implies b/sysdeps/unix/sysv/linux/arc/arc64/Implies
+new file mode 100644
+index 0000000000..05abf4461a
+--- /dev/null
++++ b/sysdeps/unix/sysv/linux/arc/arc64/Implies
+@@ -0,0 +1,2 @@
++unix/sysv/linux/arc
++unix/sysv/linux/wordsize-64
+diff --git a/sysdeps/unix/sysv/linux/arc/arch-syscall.h b/sysdeps/unix/sysv/linux/arc/arc64/arch-syscall.h
+similarity index 89%
+rename from sysdeps/unix/sysv/linux/arc/arch-syscall.h
+rename to sysdeps/unix/sysv/linux/arc/arc64/arch-syscall.h
+index c1207aaa12..c73f38e567 100644
+--- a/sysdeps/unix/sysv/linux/arc/arch-syscall.h
++++ b/sysdeps/unix/sysv/linux/arc/arc64/arch-syscall.h
+@@ -15,11 +15,11 @@
+ #define __NR_capset 91
+ #define __NR_chdir 49
+ #define __NR_chroot 51
+-#define __NR_clock_adjtime64 405
+-#define __NR_clock_getres_time64 406
+-#define __NR_clock_gettime64 403
+-#define __NR_clock_nanosleep_time64 407
+-#define __NR_clock_settime64 404
++#define __NR_clock_adjtime 266
++#define __NR_clock_getres 114
++#define __NR_clock_gettime 113
++#define __NR_clock_nanosleep 115
++#define __NR_clock_settime 112
+ #define __NR_clone 220
+ #define __NR_clone3 435
+ #define __NR_close 57
+@@ -40,7 +40,7 @@
+ #define __NR_exit_group 94
+ #define __NR_faccessat 48
+ #define __NR_faccessat2 439
+-#define __NR_fadvise64_64 223
++#define __NR_fadvise64 223
+ #define __NR_fallocate 47
+ #define __NR_fanotify_init 262
+ #define __NR_fanotify_mark 263
+@@ -49,7 +49,7 @@
+ #define __NR_fchmodat 53
+ #define __NR_fchown 55
+ #define __NR_fchownat 54
+-#define __NR_fcntl64 25
++#define __NR_fcntl 25
+ #define __NR_fdatasync 83
+ #define __NR_fgetxattr 10
+ #define __NR_finit_module 273
+@@ -61,10 +61,11 @@
+ #define __NR_fsmount 432
+ #define __NR_fsopen 430
+ #define __NR_fspick 433
+-#define __NR_fstatfs64 44
++#define __NR_fstat 80
++#define __NR_fstatfs 44
+ #define __NR_fsync 82
+-#define __NR_ftruncate64 46
+-#define __NR_futex_time64 422
++#define __NR_ftruncate 46
++#define __NR_futex 98
+ #define __NR_futex_waitv 449
+ #define __NR_get_mempolicy 236
+ #define __NR_get_robust_list 100
+@@ -101,7 +102,6 @@
+ #define __NR_io_destroy 1
+ #define __NR_io_getevents 4
+ #define __NR_io_pgetevents 292
+-#define __NR_io_pgetevents_time64 416
+ #define __NR_io_setup 0
+ #define __NR_io_submit 2
+ #define __NR_io_uring_enter 426
+@@ -123,9 +123,9 @@
+ #define __NR_listen 201
+ #define __NR_listxattr 11
+ #define __NR_llistxattr 12
+-#define __NR_llseek 62
+ #define __NR_lookup_dcookie 18
+ #define __NR_lremovexattr 15
++#define __NR_lseek 62
+ #define __NR_lsetxattr 6
+ #define __NR_madvise 233
+ #define __NR_mbind 235
+@@ -138,7 +138,7 @@
+ #define __NR_mlock 228
+ #define __NR_mlock2 284
+ #define __NR_mlockall 230
+-#define __NR_mmap2 222
++#define __NR_mmap 222
+ #define __NR_mount 40
+ #define __NR_mount_setattr 442
+ #define __NR_move_mount 429
+@@ -147,8 +147,8 @@
+ #define __NR_mq_getsetattr 185
+ #define __NR_mq_notify 184
+ #define __NR_mq_open 180
+-#define __NR_mq_timedreceive_time64 419
+-#define __NR_mq_timedsend_time64 418
++#define __NR_mq_timedreceive 183
++#define __NR_mq_timedsend 182
+ #define __NR_mq_unlink 181
+ #define __NR_mremap 216
+ #define __NR_msgctl 187
+@@ -161,6 +161,7 @@
+ #define __NR_munmap 215
+ #define __NR_name_to_handle_at 264
+ #define __NR_nanosleep 101
++#define __NR_newfstatat 79
+ #define __NR_nfsservctl 42
+ #define __NR_open_by_handle_at 265
+ #define __NR_open_tree 428
+@@ -176,7 +177,7 @@
+ #define __NR_pkey_alloc 289
+ #define __NR_pkey_free 290
+ #define __NR_pkey_mprotect 288
+-#define __NR_ppoll_time64 414
++#define __NR_ppoll 73
+ #define __NR_prctl 167
+ #define __NR_pread64 67
+ #define __NR_preadv 69
+@@ -186,7 +187,7 @@
+ #define __NR_process_mrelease 448
+ #define __NR_process_vm_readv 270
+ #define __NR_process_vm_writev 271
+-#define __NR_pselect6_time64 413
++#define __NR_pselect6 72
+ #define __NR_ptrace 117
+ #define __NR_pwrite64 68
+ #define __NR_pwritev 70
+@@ -199,7 +200,7 @@
+ #define __NR_readv 65
+ #define __NR_reboot 142
+ #define __NR_recvfrom 207
+-#define __NR_recvmmsg_time64 417
++#define __NR_recvmmsg 243
+ #define __NR_recvmsg 212
+ #define __NR_remap_file_pages 234
+ #define __NR_removexattr 14
+@@ -214,7 +215,7 @@
+ #define __NR_rt_sigqueueinfo 138
+ #define __NR_rt_sigreturn 139
+ #define __NR_rt_sigsuspend 133
+-#define __NR_rt_sigtimedwait_time64 421
++#define __NR_rt_sigtimedwait 137
+ #define __NR_rt_tgsigqueueinfo 240
+ #define __NR_sched_get_priority_max 125
+ #define __NR_sched_get_priority_min 126
+@@ -222,7 +223,7 @@
+ #define __NR_sched_getattr 275
+ #define __NR_sched_getparam 121
+ #define __NR_sched_getscheduler 120
+-#define __NR_sched_rr_get_interval_time64 423
++#define __NR_sched_rr_get_interval 127
+ #define __NR_sched_setaffinity 122
+ #define __NR_sched_setattr 274
+ #define __NR_sched_setparam 118
+@@ -232,8 +233,8 @@
+ #define __NR_semctl 191
+ #define __NR_semget 190
+ #define __NR_semop 193
+-#define __NR_semtimedop_time64 420
+-#define __NR_sendfile64 71
++#define __NR_semtimedop 192
++#define __NR_sendfile 71
+ #define __NR_sendmmsg 269
+ #define __NR_sendmsg 211
+ #define __NR_sendto 206
+@@ -271,7 +272,7 @@
+ #define __NR_socket 198
+ #define __NR_socketpair 199
+ #define __NR_splice 76
+-#define __NR_statfs64 43
++#define __NR_statfs 43
+ #define __NR_statx 291
+ #define __NR_swapoff 225
+ #define __NR_swapon 224
+@@ -287,21 +288,21 @@
+ #define __NR_timer_create 107
+ #define __NR_timer_delete 111
+ #define __NR_timer_getoverrun 109
+-#define __NR_timer_gettime64 408
+-#define __NR_timer_settime64 409
++#define __NR_timer_gettime 108
++#define __NR_timer_settime 110
+ #define __NR_timerfd_create 85
+-#define __NR_timerfd_gettime64 410
+-#define __NR_timerfd_settime64 411
++#define __NR_timerfd_gettime 87
++#define __NR_timerfd_settime 86
+ #define __NR_times 153
+ #define __NR_tkill 130
+-#define __NR_truncate64 45
++#define __NR_truncate 45
+ #define __NR_umask 166
+ #define __NR_umount2 39
+ #define __NR_uname 160
+ #define __NR_unlinkat 35
+ #define __NR_unshare 97
+ #define __NR_userfaultfd 282
+-#define __NR_utimensat_time64 412
++#define __NR_utimensat 88
+ #define __NR_vhangup 58
+ #define __NR_vmsplice 75
+ #define __NR_wait4 260
+diff --git a/sysdeps/unix/sysv/linux/arc/c++-types.data b/sysdeps/unix/sysv/linux/arc/arc64/c++-types.data
+similarity index 73%
+rename from sysdeps/unix/sysv/linux/arc/c++-types.data
+rename to sysdeps/unix/sysv/linux/arc/arc64/c++-types.data
+index 0fb0143ae7..ac925ccb36 100644
+--- a/sysdeps/unix/sysv/linux/arc/c++-types.data
++++ b/sysdeps/unix/sysv/linux/arc/arc64/c++-types.data
+@@ -1,32 +1,32 @@
+-blkcnt64_t:x
+-blkcnt_t:x
++blkcnt64_t:l
++blkcnt_t:l
+ blksize_t:i
+ caddr_t:Pc
+ clockid_t:i
+ clock_t:l
+ daddr_t:i
+-dev_t:y
++dev_t:m
+ fd_mask:l
+-fsblkcnt64_t:y
+-fsblkcnt_t:y
+-fsfilcnt64_t:y
+-fsfilcnt_t:y
++fsblkcnt64_t:m
++fsblkcnt_t:m
++fsfilcnt64_t:m
++fsfilcnt_t:m
+ fsid_t:8__fsid_t
+ gid_t:j
+ id_t:j
+-ino64_t:y
+-ino_t:y
++ino64_t:m
++ino_t:m
+ int16_t:s
+ int32_t:i
+-int64_t:x
++int64_t:l
+ int8_t:a
+-intptr_t:i
++intptr_t:l
+ key_t:i
+-loff_t:x
++loff_t:l
+ mode_t:j
+ nlink_t:j
+-off64_t:x
+-off_t:x
++off64_t:l
++off_t:l
+ pid_t:i
+ pthread_attr_t:14pthread_attr_t
+ pthread_barrier_t:17pthread_barrier_t
+@@ -41,27 +41,27 @@ pthread_rwlock_t:16pthread_rwlock_t
+ pthread_rwlockattr_t:20pthread_rwlockattr_t
+ pthread_spinlock_t:i
+ pthread_t:m
+-quad_t:x
+-register_t:i
+-rlim64_t:y
+-rlim_t:y
++quad_t:l
++register_t:l
++rlim64_t:m
++rlim_t:m
+ sigset_t:10__sigset_t
+-size_t:j
++size_t:m
+ socklen_t:j
+-ssize_t:i
+-suseconds_t:x
+-time_t:x
++ssize_t:l
++suseconds_t:l
++time_t:l
+ u_char:h
+ uid_t:j
+ uint:j
+ u_int:j
+ u_int16_t:t
+ u_int32_t:j
+-u_int64_t:y
++u_int64_t:m
+ u_int8_t:h
+ ulong:m
+ u_long:m
+-u_quad_t:y
++u_quad_t:m
+ useconds_t:j
+ ushort:t
+ u_short:t
+diff --git a/sysdeps/unix/sysv/linux/arc/ld.abilist b/sysdeps/unix/sysv/linux/arc/arc64/ld.abilist
+similarity index 54%
+rename from sysdeps/unix/sysv/linux/arc/ld.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/ld.abilist
+index 55f0c2ab9c..3a4bcb95f2 100644
+--- a/sysdeps/unix/sysv/linux/arc/ld.abilist
++++ b/sysdeps/unix/sysv/linux/arc/arc64/ld.abilist
+@@ -1,9 +1,9 @@
+-GLIBC_2.32 __libc_stack_end D 0x4
+-GLIBC_2.32 __stack_chk_guard D 0x4
++GLIBC_2.32 __libc_stack_end D 0x8
++GLIBC_2.32 __stack_chk_guard D 0x8
+ GLIBC_2.32 __tls_get_addr F
+ GLIBC_2.32 _dl_mcount F
+-GLIBC_2.32 _r_debug D 0x14
++GLIBC_2.32 _r_debug D 0x28
+ GLIBC_2.34 __rtld_version_placeholder F
+ GLIBC_2.35 __rseq_flags D 0x4
+-GLIBC_2.35 __rseq_offset D 0x4
++GLIBC_2.35 __rseq_offset D 0x8
+ GLIBC_2.35 __rseq_size D 0x4
+diff --git a/sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libBrokenLocale.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libBrokenLocale.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libanl.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libanl.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libanl.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libanl.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libc.abilist
+similarity index 97%
+rename from sysdeps/unix/sysv/linux/arc/libc.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libc.abilist
+index dfe0c3f7b6..d07723e742 100644
+--- a/sysdeps/unix/sysv/linux/arc/libc.abilist
++++ b/sysdeps/unix/sysv/linux/arc/arc64/libc.abilist
+@@ -1,7 +1,7 @@
+ GLIBC_2.32 _Exit F
+-GLIBC_2.32 _IO_2_1_stderr_ D 0x9c
+-GLIBC_2.32 _IO_2_1_stdin_ D 0x9c
+-GLIBC_2.32 _IO_2_1_stdout_ D 0x9c
++GLIBC_2.32 _IO_2_1_stderr_ D 0xe0
++GLIBC_2.32 _IO_2_1_stdin_ D 0xe0
++GLIBC_2.32 _IO_2_1_stdout_ D 0xe0
+ GLIBC_2.32 _IO_adjust_column F
+ GLIBC_2.32 _IO_adjust_wcolumn F
+ GLIBC_2.32 _IO_default_doallocate F
+@@ -27,7 +27,7 @@ GLIBC_2.32 _IO_file_doallocate F
+ GLIBC_2.32 _IO_file_finish F
+ GLIBC_2.32 _IO_file_fopen F
+ GLIBC_2.32 _IO_file_init F
+-GLIBC_2.32 _IO_file_jumps D 0x54
++GLIBC_2.32 _IO_file_jumps D 0xa8
+ GLIBC_2.32 _IO_file_open F
+ GLIBC_2.32 _IO_file_overflow F
+ GLIBC_2.32 _IO_file_read F
+@@ -67,7 +67,7 @@ GLIBC_2.32 _IO_iter_file F
+ GLIBC_2.32 _IO_iter_next F
+ GLIBC_2.32 _IO_least_wmarker F
+ GLIBC_2.32 _IO_link_in F
+-GLIBC_2.32 _IO_list_all D 0x4
++GLIBC_2.32 _IO_list_all D 0x8
+ GLIBC_2.32 _IO_list_lock F
+ GLIBC_2.32 _IO_list_resetlock F
+ GLIBC_2.32 _IO_list_unlock F
+@@ -120,7 +120,7 @@ GLIBC_2.32 _IO_wdefault_xsgetn F
+ GLIBC_2.32 _IO_wdefault_xsputn F
+ GLIBC_2.32 _IO_wdo_write F
+ GLIBC_2.32 _IO_wdoallocbuf F
+-GLIBC_2.32 _IO_wfile_jumps D 0x54
++GLIBC_2.32 _IO_wfile_jumps D 0xa8
+ GLIBC_2.32 _IO_wfile_overflow F
+ GLIBC_2.32 _IO_wfile_seekoff F
+ GLIBC_2.32 _IO_wfile_sync F
+@@ -128,9 +128,9 @@ GLIBC_2.32 _IO_wfile_underflow F
+ GLIBC_2.32 _IO_wfile_xsputn F
+ GLIBC_2.32 _IO_wmarker_delta F
+ GLIBC_2.32 _IO_wsetb F
+-GLIBC_2.32 ___brk_addr D 0x4
++GLIBC_2.32 ___brk_addr D 0x8
+ GLIBC_2.32 __adjtimex F
+-GLIBC_2.32 __after_morecore_hook D 0x4
++GLIBC_2.32 __after_morecore_hook D 0x8
+ GLIBC_2.32 __argz_count F
+ GLIBC_2.32 __argz_next F
+ GLIBC_2.32 __argz_stringify F
+@@ -155,7 +155,7 @@ GLIBC_2.32 __ctype_b_loc F
+ GLIBC_2.32 __ctype_get_mb_cur_max F
+ GLIBC_2.32 __ctype_tolower_loc F
+ GLIBC_2.32 __ctype_toupper_loc F
+-GLIBC_2.32 __curbrk D 0x4
++GLIBC_2.32 __curbrk D 0x8
+ GLIBC_2.32 __cxa_at_quick_exit F
+ GLIBC_2.32 __cxa_atexit F
+ GLIBC_2.32 __cxa_finalize F
+@@ -173,7 +173,7 @@ GLIBC_2.32 __dprintf_chk F
+ GLIBC_2.32 __dup2 F
+ GLIBC_2.32 __duplocale F
+ GLIBC_2.32 __endmntent F
+-GLIBC_2.32 __environ D 0x4
++GLIBC_2.32 __environ D 0x8
+ GLIBC_2.32 __errno_location F
+ GLIBC_2.32 __explicit_bzero_chk F
+ GLIBC_2.32 __fbufsize F
+@@ -197,7 +197,7 @@ GLIBC_2.32 __fread_chk F
+ GLIBC_2.32 __fread_unlocked_chk F
+ GLIBC_2.32 __freadable F
+ GLIBC_2.32 __freading F
+-GLIBC_2.32 __free_hook D 0x4
++GLIBC_2.32 __free_hook D 0x8
+ GLIBC_2.32 __freelocale F
+ GLIBC_2.32 __fsetlocking F
+ GLIBC_2.32 __fwprintf_chk F
+@@ -289,20 +289,20 @@ GLIBC_2.32 __longjmp_chk F
+ GLIBC_2.32 __lseek F
+ GLIBC_2.32 __lxstat F
+ GLIBC_2.32 __lxstat64 F
+-GLIBC_2.32 __malloc_hook D 0x4
++GLIBC_2.32 __malloc_hook D 0x8
+ GLIBC_2.32 __mbrlen F
+ GLIBC_2.32 __mbrtowc F
+ GLIBC_2.32 __mbsnrtowcs_chk F
+ GLIBC_2.32 __mbsrtowcs_chk F
+ GLIBC_2.32 __mbstowcs_chk F
+-GLIBC_2.32 __memalign_hook D 0x4
++GLIBC_2.32 __memalign_hook D 0x8
+ GLIBC_2.32 __memcpy_chk F
+ GLIBC_2.32 __memmove_chk F
+ GLIBC_2.32 __mempcpy F
+ GLIBC_2.32 __mempcpy_chk F
+ GLIBC_2.32 __memset_chk F
+ GLIBC_2.32 __monstartup F
+-GLIBC_2.32 __morecore D 0x4
++GLIBC_2.32 __morecore D 0x8
+ GLIBC_2.32 __mq_open_2 F
+ GLIBC_2.32 __nanosleep F
+ GLIBC_2.32 __newlocale F
+@@ -329,8 +329,8 @@ GLIBC_2.32 __pread_chk F
+ GLIBC_2.32 __printf_chk F
+ GLIBC_2.32 __printf_fp F
+ GLIBC_2.32 __profile_frequency F
+-GLIBC_2.32 __progname D 0x4
+-GLIBC_2.32 __progname_full D 0x4
++GLIBC_2.32 __progname D 0x8
++GLIBC_2.32 __progname_full D 0x8
+ GLIBC_2.32 __pthread_cleanup_routine F
+ GLIBC_2.32 __pthread_getspecific F
+ GLIBC_2.32 __pthread_key_create F
+@@ -359,12 +359,12 @@ GLIBC_2.32 __pthread_unwind_next F
+ GLIBC_2.32 __ptsname_r_chk F
+ GLIBC_2.32 __pwrite64 F
+ GLIBC_2.32 __rawmemchr F
+-GLIBC_2.32 __rcmd_errstr D 0x4
++GLIBC_2.32 __rcmd_errstr D 0x8
+ GLIBC_2.32 __read F
+ GLIBC_2.32 __read_chk F
+ GLIBC_2.32 __readlink_chk F
+ GLIBC_2.32 __readlinkat_chk F
+-GLIBC_2.32 __realloc_hook D 0x4
++GLIBC_2.32 __realloc_hook D 0x8
+ GLIBC_2.32 __realpath_chk F
+ GLIBC_2.32 __recv_chk F
+ GLIBC_2.32 __recvfrom_chk F
+@@ -452,7 +452,7 @@ GLIBC_2.32 __swprintf_chk F
+ GLIBC_2.32 __sysconf F
+ GLIBC_2.32 __syslog_chk F
+ GLIBC_2.32 __sysv_signal F
+-GLIBC_2.32 __timezone D 0x4
++GLIBC_2.32 __timezone D 0x8
+ GLIBC_2.32 __toascii_l F
+ GLIBC_2.32 __tolower_l F
+ GLIBC_2.32 __toupper_l F
+@@ -461,7 +461,7 @@ GLIBC_2.32 __towctrans_l F
+ GLIBC_2.32 __towlower_l F
+ GLIBC_2.32 __towupper_l F
+ GLIBC_2.32 __ttyname_r_chk F
+-GLIBC_2.32 __tzname D 0x8
++GLIBC_2.32 __tzname D 0x10
+ GLIBC_2.32 __uflow F
+ GLIBC_2.32 __underflow F
+ GLIBC_2.32 __uselocale F
+@@ -531,7 +531,7 @@ GLIBC_2.32 __xstat F
+ GLIBC_2.32 __xstat64 F
+ GLIBC_2.32 _dl_mcount_wrapper F
+ GLIBC_2.32 _dl_mcount_wrapper_check F
+-GLIBC_2.32 _environ D 0x4
++GLIBC_2.32 _environ D 0x8
+ GLIBC_2.32 _exit F
+ GLIBC_2.32 _flush_cache F
+ GLIBC_2.32 _flushlbf F
+@@ -540,7 +540,7 @@ GLIBC_2.32 _longjmp F
+ GLIBC_2.32 _mcleanup F
+ GLIBC_2.32 _mcount F
+ GLIBC_2.32 _nl_default_dirname D 0x12
+-GLIBC_2.32 _nl_domain_bindings D 0x4
++GLIBC_2.32 _nl_domain_bindings D 0x8
+ GLIBC_2.32 _nl_msg_cat_cntr D 0x4
+ GLIBC_2.32 _obstack_allocated_p F
+ GLIBC_2.32 _obstack_begin F
+@@ -552,8 +552,8 @@ GLIBC_2.32 _pthread_cleanup_pop F
+ GLIBC_2.32 _pthread_cleanup_pop_restore F
+ GLIBC_2.32 _pthread_cleanup_push F
+ GLIBC_2.32 _pthread_cleanup_push_defer F
+-GLIBC_2.32 _res D 0x200
+-GLIBC_2.32 _res_hconf D 0x30
++GLIBC_2.32 _res D 0x238
++GLIBC_2.32 _res_hconf D 0x48
+ GLIBC_2.32 _setjmp F
+ GLIBC_2.32 _tolower F
+ GLIBC_2.32 _toupper F
+@@ -592,9 +592,9 @@ GLIBC_2.32 argp_error F
+ GLIBC_2.32 argp_failure F
+ GLIBC_2.32 argp_help F
+ GLIBC_2.32 argp_parse F
+-GLIBC_2.32 argp_program_bug_address D 0x4
+-GLIBC_2.32 argp_program_version D 0x4
+-GLIBC_2.32 argp_program_version_hook D 0x4
++GLIBC_2.32 argp_program_bug_address D 0x8
++GLIBC_2.32 argp_program_version D 0x8
++GLIBC_2.32 argp_program_version_hook D 0x8
+ GLIBC_2.32 argp_state_help F
+ GLIBC_2.32 argp_usage F
+ GLIBC_2.32 argz_add F
+@@ -734,7 +734,7 @@ GLIBC_2.32 endttyent F
+ GLIBC_2.32 endusershell F
+ GLIBC_2.32 endutent F
+ GLIBC_2.32 endutxent F
+-GLIBC_2.32 environ D 0x4
++GLIBC_2.32 environ D 0x8
+ GLIBC_2.32 envz_add F
+ GLIBC_2.32 envz_entry F
+ GLIBC_2.32 envz_get F
+@@ -753,7 +753,7 @@ GLIBC_2.32 error F
+ GLIBC_2.32 error_at_line F
+ GLIBC_2.32 error_message_count D 0x4
+ GLIBC_2.32 error_one_per_line D 0x4
+-GLIBC_2.32 error_print_progname D 0x4
++GLIBC_2.32 error_print_progname D 0x8
+ GLIBC_2.32 errx F
+ GLIBC_2.32 ether_aton F
+ GLIBC_2.32 ether_aton_r F
+@@ -1078,7 +1078,7 @@ GLIBC_2.32 grantpt F
+ GLIBC_2.32 group_member F
+ GLIBC_2.32 gsignal F
+ GLIBC_2.32 gtty F
+-GLIBC_2.32 h_errlist D 0x14
++GLIBC_2.32 h_errlist D 0x28
+ GLIBC_2.32 h_nerr D 0x4
+ GLIBC_2.32 hasmntopt F
+ GLIBC_2.32 hcreate F
+@@ -1260,7 +1260,7 @@ GLIBC_2.32 malloc_stats F
+ GLIBC_2.32 malloc_trim F
+ GLIBC_2.32 malloc_usable_size F
+ GLIBC_2.32 mallopt F
+-GLIBC_2.32 mallwatch D 0x4
++GLIBC_2.32 mallwatch D 0x8
+ GLIBC_2.32 mblen F
+ GLIBC_2.32 mbrlen F
+ GLIBC_2.32 mbrtoc16 F
+@@ -1367,7 +1367,7 @@ GLIBC_2.32 ntohs F
+ GLIBC_2.32 ntp_adjtime F
+ GLIBC_2.32 ntp_gettime F
+ GLIBC_2.32 ntp_gettimex F
+-GLIBC_2.32 obstack_alloc_failed_handler D 0x4
++GLIBC_2.32 obstack_alloc_failed_handler D 0x8
+ GLIBC_2.32 obstack_exit_failure D 0x4
+ GLIBC_2.32 obstack_free F
+ GLIBC_2.32 obstack_printf F
+@@ -1383,7 +1383,7 @@ GLIBC_2.32 openat64 F
+ GLIBC_2.32 opendir F
+ GLIBC_2.32 openlog F
+ GLIBC_2.32 openpty F
+-GLIBC_2.32 optarg D 0x4
++GLIBC_2.32 optarg D 0x8
+ GLIBC_2.32 opterr D 0x4
+ GLIBC_2.32 optind D 0x4
+ GLIBC_2.32 optopt D 0x4
+@@ -1449,8 +1449,8 @@ GLIBC_2.32 prlimit64 F
+ GLIBC_2.32 process_vm_readv F
+ GLIBC_2.32 process_vm_writev F
+ GLIBC_2.32 profil F
+-GLIBC_2.32 program_invocation_name D 0x4
+-GLIBC_2.32 program_invocation_short_name D 0x4
++GLIBC_2.32 program_invocation_name D 0x8
++GLIBC_2.32 program_invocation_short_name D 0x8
+ GLIBC_2.32 pselect F
+ GLIBC_2.32 psiginfo F
+ GLIBC_2.32 psignal F
+@@ -1637,7 +1637,7 @@ GLIBC_2.32 re_search F
+ GLIBC_2.32 re_search_2 F
+ GLIBC_2.32 re_set_registers F
+ GLIBC_2.32 re_set_syntax F
+-GLIBC_2.32 re_syntax_options D 0x4
++GLIBC_2.32 re_syntax_options D 0x8
+ GLIBC_2.32 read F
+ GLIBC_2.32 readahead F
+ GLIBC_2.32 readdir F
+@@ -1850,9 +1850,9 @@ GLIBC_2.32 statfs64 F
+ GLIBC_2.32 statvfs F
+ GLIBC_2.32 statvfs64 F
+ GLIBC_2.32 statx F
+-GLIBC_2.32 stderr D 0x4
+-GLIBC_2.32 stdin D 0x4
+-GLIBC_2.32 stdout D 0x4
++GLIBC_2.32 stderr D 0x8
++GLIBC_2.32 stdin D 0x8
++GLIBC_2.32 stdout D 0x8
+ GLIBC_2.32 stpcpy F
+ GLIBC_2.32 stpncpy F
+ GLIBC_2.32 strcasecmp F
+@@ -1984,7 +1984,7 @@ GLIBC_2.32 timerfd_gettime F
+ GLIBC_2.32 timerfd_settime F
+ GLIBC_2.32 times F
+ GLIBC_2.32 timespec_get F
+-GLIBC_2.32 timezone D 0x4
++GLIBC_2.32 timezone D 0x8
+ GLIBC_2.32 tmpfile F
+ GLIBC_2.32 tmpfile64 F
+ GLIBC_2.32 tmpnam F
+@@ -2013,7 +2013,7 @@ GLIBC_2.32 ttyname_r F
+ GLIBC_2.32 ttyslot F
+ GLIBC_2.32 twalk F
+ GLIBC_2.32 twalk_r F
+-GLIBC_2.32 tzname D 0x8
++GLIBC_2.32 tzname D 0x10
+ GLIBC_2.32 tzset F
+ GLIBC_2.32 ualarm F
+ GLIBC_2.32 ulckpwdf F
+diff --git a/sysdeps/unix/sysv/linux/arc/libc_malloc_debug.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libc_malloc_debug.abilist
+similarity index 80%
+rename from sysdeps/unix/sysv/linux/arc/libc_malloc_debug.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libc_malloc_debug.abilist
+index cf9f611403..c50393d8cc 100644
+--- a/sysdeps/unix/sysv/linux/arc/libc_malloc_debug.abilist
++++ b/sysdeps/unix/sysv/linux/arc/arc64/libc_malloc_debug.abilist
+@@ -1,7 +1,7 @@
+-GLIBC_2.32 __free_hook D 0x4
+-GLIBC_2.32 __malloc_hook D 0x4
+-GLIBC_2.32 __memalign_hook D 0x4
+-GLIBC_2.32 __realloc_hook D 0x4
++GLIBC_2.32 __free_hook D 0x8
++GLIBC_2.32 __malloc_hook D 0x8
++GLIBC_2.32 __memalign_hook D 0x8
++GLIBC_2.32 __realloc_hook D 0x8
+ GLIBC_2.32 aligned_alloc F
+ GLIBC_2.32 calloc F
+ GLIBC_2.32 free F
+diff --git a/sysdeps/unix/sysv/linux/arc/libcrypt.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libcrypt.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libcrypt.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libcrypt.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libdl.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libdl.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libdl.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libdl.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libm.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libm.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libm.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libm.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libpthread.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libpthread.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libpthread.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libpthread.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libresolv.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libresolv.abilist
+similarity index 95%
+rename from sysdeps/unix/sysv/linux/arc/libresolv.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libresolv.abilist
+index 47c5072f61..76ab1dedfb 100644
+--- a/sysdeps/unix/sysv/linux/arc/libresolv.abilist
++++ b/sysdeps/unix/sysv/linux/arc/arc64/libresolv.abilist
+@@ -10,7 +10,7 @@ GLIBC_2.32 __loc_ntoa F
+ GLIBC_2.32 __p_cdname F
+ GLIBC_2.32 __p_cdnname F
+ GLIBC_2.32 __p_class F
+-GLIBC_2.32 __p_class_syms D 0x54
++GLIBC_2.32 __p_class_syms D 0xa8
+ GLIBC_2.32 __p_fqname F
+ GLIBC_2.32 __p_fqnname F
+ GLIBC_2.32 __p_option F
+@@ -18,7 +18,7 @@ GLIBC_2.32 __p_query F
+ GLIBC_2.32 __p_rcode F
+ GLIBC_2.32 __p_time F
+ GLIBC_2.32 __p_type F
+-GLIBC_2.32 __p_type_syms D 0x228
++GLIBC_2.32 __p_type_syms D 0x450
+ GLIBC_2.32 __putlong F
+ GLIBC_2.32 __putshort F
+ GLIBC_2.32 __res_close F
+diff --git a/sysdeps/unix/sysv/linux/arc/librt.abilist b/sysdeps/unix/sysv/linux/arc/arc64/librt.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/librt.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/librt.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libthread_db.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libthread_db.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libthread_db.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libthread_db.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/libutil.abilist b/sysdeps/unix/sysv/linux/arc/arc64/libutil.abilist
+similarity index 100%
+rename from sysdeps/unix/sysv/linux/arc/libutil.abilist
+rename to sysdeps/unix/sysv/linux/arc/arc64/libutil.abilist
+diff --git a/sysdeps/unix/sysv/linux/arc/bits/fcntl.h b/sysdeps/unix/sysv/linux/arc/bits/fcntl.h
+new file mode 100644
+index 0000000000..20292fd32f
+--- /dev/null
++++ b/sysdeps/unix/sysv/linux/arc/bits/fcntl.h
+@@ -0,0 +1,62 @@
++/* O_*, F_*, FD_* bit values for Linux / ARC
++ Copyright (C) 2011-2021 Free Software Foundation, Inc.
++
++ This file is part of the GNU C Library.
++
++ The GNU C Library is free software; you can redistribute it and/or
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, see
++ <https://www.gnu.org/licenses/>. */
++
++#ifndef _FCNTL_H
++# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
++#endif
++
++#include <bits/wordsize.h>
++
++/* In 64-bit ISA files are always with 64bit off_t and F_*LK64 are the same as
++ non-64-bit versions. It will need to be revised for 128-bit. */
++#if __WORDSIZE == 64
++# define __O_LARGEFILE 0
++
++# define F_GETLK64 5 /* Get record locking info. */
++# define F_SETLK64 6 /* Set record locking info (non-blocking). */
++# define F_SETLKW64 7 /* Set record locking info (blocking). */
++#endif
++
++struct flock
++ {
++ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
++ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
++#if __WORDSIZE == 64 || !defined __USE_FILE_OFFSET64
++ __off_t l_start; /* Offset where the lock begins. */
++ __off_t l_len; /* Size of the locked area; zero means until EOF. */
++#else
++ __off64_t l_start; /* Offset where the lock begins. */
++ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
++#endif
++ __pid_t l_pid; /* Process holding the lock. */
++ };
++
++#ifdef __USE_LARGEFILE64
++struct flock64
++ {
++ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
++ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
++ __off64_t l_start; /* Offset where the lock begins. */
++ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
++ __pid_t l_pid; /* Process holding the lock. */
++ };
++#endif
++
++/* Include generic Linux declarations. */
++#include <bits/fcntl-linux.h>
+diff --git a/sysdeps/unix/sysv/linux/arc/bits/types/__sigset_t.h b/sysdeps/unix/sysv/linux/arc/bits/types/__sigset_t.h
+index 795638a30b..6be69437f8 100644
+--- a/sysdeps/unix/sysv/linux/arc/bits/types/__sigset_t.h
++++ b/sysdeps/unix/sysv/linux/arc/bits/types/__sigset_t.h
+@@ -3,7 +3,7 @@
+ #define ____sigset_t_defined
+
+ /* Linux asm-generic syscall ABI expects sigset_t to hold 64 signals. */
+-#define _SIGSET_NWORDS (64 / (8 * sizeof (unsigned long int)))
++#define _SIGSET_NWORDS 2
+ typedef struct
+ {
+ unsigned long int __val[_SIGSET_NWORDS];
+diff --git a/sysdeps/unix/sysv/linux/arc/clone.S b/sysdeps/unix/sysv/linux/arc/clone.S
+index d8c7b93d1c..364fa1edde 100644
+--- a/sysdeps/unix/sysv/linux/arc/clone.S
++++ b/sysdeps/unix/sysv/linux/arc/clone.S
+@@ -31,41 +31,41 @@
+ clone syscall in kernel (ABI: CONFIG_CLONE_BACKWARDS)
+
+ int sys_clone(unsigned long int clone_flags,
+- unsigned long int newsp,
++ unsigned long int newsp,
+ int __user *parent_tidptr,
+ void *tls,
+ int __user *child_tidptr). */
+
+ ENTRY (__clone)
+- cmp r0, 0 /* @fn can't be NULL. */
+- and r1,r1,-4 /* @child_stack be 4 bytes aligned per ABI. */
+- cmp.ne r1, 0 /* @child_stack can't be NULL. */
++ CMPR r0, 0 /* @fn can't be NULL. */
++ ANDR r1, r1, -REGSZ /* @child_stack 4/8 aligned per ABI. */
++ CMPR.ne r1, 0 /* @child_stack can't be NULL. */
+ bz L (__sys_err)
+
+ /* save some of the orig args
+ r0 containing @fn will be clobbered AFTER syscall (with ret val)
+ rest are clobbered BEFORE syscall due to different arg ordering. */
+- mov r10, r0 /* @fn. */
+- mov r11, r3 /* @args. */
+- mov r12, r2 /* @clone_flags. */
+- mov r9, r5 /* @tls. */
++ MOVR r10, r0 /* @fn. */
++ MOVR r11, r3 /* @args. */
++ MOVR r12, r2 /* @clone_flags. */
++ MOVR r9, r5 /* @tls. */
+
+ /* adjust libc args for syscall. */
+
+- mov r0, r2 /* libc @flags is 1st syscall arg. */
+- mov r2, r4 /* libc @ptid. */
+- mov r3, r5 /* libc @tls. */
+- mov r4, r6 /* libc @ctid. */
++ MOVR r0, r2 /* libc @flags is 1st syscall arg. */
++ MOVR r2, r4 /* libc @ptid. */
++ MOVR r3, r5 /* libc @tls. */
++ MOVR r4, r6 /* libc @ctid. */
+ mov r8, __NR_clone
+ ARC_TRAP_INSN
+
+- cmp r0, 0 /* return code : 0 new process, !0 parent. */
++ CMPR r0, 0 /* return code : 0 new process, !0 parent. */
+ beq thread_start_clone
+ blt L (__sys_err2) /* < 0 (signed) error. */
+ j [blink] /* Parent returns. */
+
+ L (__sys_err):
+- mov r0, -EINVAL
++ MOVR r0, -EINVAL
+ L (__sys_err2):
+ /* (1) No need to make -ve kernel error code as positive errno
+ __syscall_error expects the -ve error code returned by kernel
+@@ -87,7 +87,7 @@ thread_start_clone:
+
+ /* Child jumps off to @fn with @arg as argument. */
+ jl.d [r10]
+- mov r0, r11
++ MOVR r0, r11
+
+ /* exit() with result from @fn (already in r0). */
+ mov r8, __NR_exit
+diff --git a/sysdeps/unix/sysv/linux/arc/clone3.S b/sysdeps/unix/sysv/linux/arc/clone3.S
+index 87a8272a39..7fc61524b5 100644
+--- a/sysdeps/unix/sysv/linux/arc/clone3.S
++++ b/sysdeps/unix/sysv/linux/arc/clone3.S
+@@ -37,9 +37,9 @@
+ ENTRY(__clone3)
+
+ /* Save args for the child. */
+- mov r10, r0 /* cl_args */
+- mov r11, r2 /* func */
+- mov r12, r3 /* args */
++ MOVR r10, r0 /* cl_args */
++ MOVR r11, r2 /* func */
++ MOVR r12, r3 /* args */
+
+ /* Sanity check args. */
+ breq r10, 0, L (__sys_err) /* No NULL cl_args pointer. */
+@@ -49,17 +49,17 @@ ENTRY(__clone3)
+ r8: system call number
+ r0: cl_args
+ r1: size */
+- mov r0, r10
++ MOVR r0, r10
+ mov r8, __NR_clone3
+ ARC_TRAP_INSN
+
+- cmp r0, 0
++ CMPR r0, 0
+ beq thread_start_clone3 /* Child returns. */
+ blt L (__sys_err2)
+ j [blink] /* Parent returns. */
+
+ L (__sys_err):
+- mov r0, -EINVAL
++ MOVR r0, -EINVAL
+ L (__sys_err2):
+ b __syscall_error
+ PSEUDO_END (__clone3)
+@@ -74,7 +74,7 @@ thread_start_clone3:
+
+ /* Child jumps off to @fn with @arg as argument. */
+ jl.d [r11]
+- mov r0, r12
++ MOVR r0, r12
+
+ /* exit() with result from @fn (already in r0). */
+ mov r8, __NR_exit
+diff --git a/sysdeps/unix/sysv/linux/arc/getcontext.S b/sysdeps/unix/sysv/linux/arc/getcontext.S
+index eb75c8ce02..851981b64c 100644
+--- a/sysdeps/unix/sysv/linux/arc/getcontext.S
++++ b/sysdeps/unix/sysv/linux/arc/getcontext.S
+@@ -26,39 +26,58 @@
+ ENTRY (__getcontext)
+
+ /* Callee saved registers. */
+- add r2, r0, UCONTEXT_MCONTEXT
+- STR (r13, r2, 37)
+- STR (r14, r2, 36)
+- STR (r15, r2, 35)
+- STR (r16, r2, 34)
+- STR (r17, r2, 33)
+- STR (r18, r2, 32)
+- STR (r19, r2, 31)
+- STR (r20, r2, 30)
+- STR (r21, r2, 29)
+- STR (r22, r2, 28)
+- STR (r23, r2, 27)
+- STR (r24, r2, 26)
++ ADDR r2, r0, UCONTEXT_MCONTEXT
++ STR.as r13, r2, 37
++ STR.as r14, r2, 36
++ STR.as r15, r2, 35
++ STR.as r16, r2, 34
++ STR.as r17, r2, 33
++ STR.as r18, r2, 32
++ STR.as r19, r2, 31
++ STR.as r20, r2, 30
++ STR.as r21, r2, 29
++ STR.as r22, r2, 28
++ STR.as r23, r2, 27
++ STR.as r24, r2, 26
+
+- STR (blink, r2, 7)
+- STR (fp, r2, 8)
+- STR (gp, r2, 9)
+- STR (sp, r2, 23)
++ STR.as blink, r2, 7
++ STR.as fp, r2, 8
++ STR.as gp, r2, 9
++ STR.as sp, r2, 23
++
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ FSTR.as f16, r2, 51
++ FSTR.as f17, r2, 52
++ FSTR.as f18, r2, 53
++ FSTR.as f19, r2, 54
++ FSTR.as f20, r2, 55
++ FSTR.as f21, r2, 56
++ FSTR.as f22, r2, 57
++ FSTR.as f23, r2, 58
++ FSTR.as f24, r2, 59
++ FSTR.as f25, r2, 60
++ FSTR.as f26, r2, 61
++ FSTR.as f27, r2, 62
++ FSTR.as f28, r2, 63
++ FSTR.as f29, r2, 64
++ FSTR.as f30, r2, 65
++ FSTR.as f31, r2, 66
++#endif
+
+ /* Save 0 in r0 placeholder to return 0 when this @ucp activated. */
+- mov r9, 0
+- STR (r9, r2, 22)
++ mov r9, 0
++ STR.as r9, r2, 22
+
+ /* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8). */
+- mov r3, _NSIG8
+- add r2, r0, UCONTEXT_SIGMASK
+- mov r1, 0
+- mov r0, SIG_BLOCK
+- mov r8, __NR_rt_sigprocmask
++ mov r3, _NSIG8
++ ADDR r2, r0, UCONTEXT_SIGMASK
++ mov r1, 0
++ mov r0, SIG_BLOCK
++ mov r8, __NR_rt_sigprocmask
+ ARC_TRAP_INSN
+- brhi r0, -1024, L (call_syscall_err)
++ BRRhi r0, -1024, L (call_syscall_err)
+ j.d [blink]
+- mov r0, 0 /* Success, error handled in .Lcall_syscall_err. */
++ mov r0, 0 /* Success, error handled in .Lcall_syscall_err. */
+
+ PSEUDO_END (__getcontext)
+ weak_alias (__getcontext, getcontext)
+diff --git a/sysdeps/unix/sysv/linux/arc/setcontext.S b/sysdeps/unix/sysv/linux/arc/setcontext.S
+index 12708379d2..e0b8b1a183 100644
+--- a/sysdeps/unix/sysv/linux/arc/setcontext.S
++++ b/sysdeps/unix/sysv/linux/arc/setcontext.S
+@@ -24,46 +24,74 @@
+
+ ENTRY (__setcontext)
+
+- mov r9, r0 /* Stash @ucp across syscall. */
++ MOVR r9, r0 /* Stash @ucp across syscall. */
+
+ /* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, NULL, _NSIG8). */
+ mov r3, _NSIG8
+ mov r2, 0
+- add r1, r0, UCONTEXT_SIGMASK
++ ADDR r1, r0, UCONTEXT_SIGMASK
+ mov r0, SIG_SETMASK
+ mov r8, __NR_rt_sigprocmask
+ ARC_TRAP_INSN
+- brhi r0, -1024, L (call_syscall_err)
++ BRRhi r0, -1024, L (call_syscall_err)
+
+ /* Restore scratch/arg regs for makecontext case. */
+ add r9, r9, UCONTEXT_MCONTEXT
+- LDR (r0, r9, 22)
+- LDR (r1, r9, 21)
+- LDR (r2, r9, 20)
+- LDR (r3, r9, 19)
+- LDR (r4, r9, 18)
+- LDR (r5, r9, 17)
+- LDR (r6, r9, 16)
+- LDR (r7, r9, 15)
++ LDR.as r0, r9, 22
++ LDR.as r1, r9, 21
++ LDR.as r2, r9, 20
++ LDR.as r3, r9, 19
++ LDR.as r4, r9, 18
++ LDR.as r5, r9, 17
++ LDR.as r6, r9, 16
++ LDR.as r7, r9, 15
+
+ /* Restore callee saved registers. */
+- LDR (r13, r9, 37)
+- LDR (r14, r9, 36)
+- LDR (r15, r9, 35)
+- LDR (r16, r9, 34)
+- LDR (r17, r9, 33)
+- LDR (r18, r9, 32)
+- LDR (r19, r9, 31)
+- LDR (r20, r9, 30)
+- LDR (r21, r9, 29)
+- LDR (r22, r9, 28)
+- LDR (r23, r9, 27)
+- LDR (r24, r9, 26)
+-
+- LDR (blink, r9, 7)
+- LDR (fp, r9, 8)
+- LDR (gp, r9, 9)
+- LDR (sp, r9, 23)
++ LDR.as r13, r9, 37
++ LDR.as r14, r9, 36
++ LDR.as r15, r9, 35
++ LDR.as r16, r9, 34
++ LDR.as r17, r9, 33
++ LDR.as r18, r9, 32
++ LDR.as r19, r9, 31
++ LDR.as r20, r9, 30
++ LDR.as r21, r9, 29
++ LDR.as r22, r9, 28
++ LDR.as r23, r9, 27
++ LDR.as r24, r9, 26
++
++ LDR.as blink, r9, 7
++ LDR.as fp, r9, 8
++ LDR.as gp, r9, 9
++ LDR.as sp, r9, 23
++
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ FLDR.as f0, r9, 43
++ FLDR.as f1, r9, 44
++ FLDR.as f2, r9, 45
++ FLDR.as f3, r9, 46
++ FLDR.as f4, r9, 47
++ FLDR.as f5, r9, 48
++ FLDR.as f6, r9, 49
++ FLDR.as f7, r9, 50
++
++ FLDR.as f16, r9, 51
++ FLDR.as f17, r9, 52
++ FLDR.as f18, r9, 53
++ FLDR.as f19, r9, 54
++ FLDR.as f20, r9, 55
++ FLDR.as f21, r9, 56
++ FLDR.as f22, r9, 57
++ FLDR.as f23, r9, 58
++ FLDR.as f24, r9, 59
++ FLDR.as f25, r9, 60
++ FLDR.as f26, r9, 61
++ FLDR.as f27, r9, 62
++ FLDR.as f28, r9, 63
++ FLDR.as f29, r9, 64
++ FLDR.as f30, r9, 66
++ FLDR.as f31, r9, 68
++#endif
+
+ j [blink]
+
+@@ -83,8 +111,8 @@ ENTRY (__startcontext)
+ jl [r14]
+
+ /* If uc_link (r15) call setcontext with that. */
+- mov r0, r15
+- breq r0, 0, 1f
++ MOVR r0, r15
++ BRReq r0, 0, 1f
+
+ bl __setcontext
+ 1:
+diff --git a/sysdeps/unix/sysv/linux/arc/shlib-versions b/sysdeps/unix/sysv/linux/arc/shlib-versions
+index 343c0a0450..92a61e53fc 100644
+--- a/sysdeps/unix/sysv/linux/arc/shlib-versions
++++ b/sysdeps/unix/sysv/linux/arc/shlib-versions
+@@ -1,7 +1,15 @@
+ DEFAULT GLIBC_2.32
+
++%ifdef HAVE_ARC32
++ld=ld-linux-arc32.so.2
++%else
++%ifdef HAVE_ARC64
++ld=ld-linux-arc64.so.2
++%else
+ %ifdef HAVE_ARC_BE
+ ld=ld-linux-arceb.so.2
+ %else
+ ld=ld-linux-arc.so.2
+ %endif
++%endif
++%endif
+diff --git a/sysdeps/unix/sysv/linux/arc/swapcontext.S b/sysdeps/unix/sysv/linux/arc/swapcontext.S
+index 76111af596..ff1741a08a 100644
+--- a/sysdeps/unix/sysv/linux/arc/swapcontext.S
++++ b/sysdeps/unix/sysv/linux/arc/swapcontext.S
+@@ -24,69 +24,88 @@ ENTRY (__swapcontext)
+
+ /* Save context into @oucp pointed to by r0. */
+
+- add r2, r0, UCONTEXT_MCONTEXT
+- STR (r13, r2, 37)
+- STR (r14, r2, 36)
+- STR (r15, r2, 35)
+- STR (r16, r2, 34)
+- STR (r17, r2, 33)
+- STR (r18, r2, 32)
+- STR (r19, r2, 31)
+- STR (r20, r2, 30)
+- STR (r21, r2, 29)
+- STR (r22, r2, 28)
+- STR (r23, r2, 27)
+- STR (r24, r2, 26)
+-
+- STR (blink, r2, 7)
+- STR (fp, r2, 8)
+- STR (gp, r2, 9)
+- STR (sp, r2, 23)
++ ADDR r2, r0, UCONTEXT_MCONTEXT
++ STR.as r13, r2, 37
++ STR.as r14, r2, 36
++ STR.as r15, r2, 35
++ STR.as r16, r2, 34
++ STR.as r17, r2, 33
++ STR.as r18, r2, 32
++ STR.as r19, r2, 31
++ STR.as r20, r2, 30
++ STR.as r21, r2, 29
++ STR.as r22, r2, 28
++ STR.as r23, r2, 27
++ STR.as r24, r2, 26
++
++ STR.as blink, r2, 7
++ STR.as fp, r2, 8
++ STR.as gp, r2, 9
++ STR.as sp, r2, 23
++
++#if defined (__ARC_FLOAT_ABI_HARD__)
++ FSTR.as f16, r2, 51
++ FSTR.as f17, r2, 52
++ FSTR.as f18, r2, 53
++ FSTR.as f19, r2, 54
++ FSTR.as f20, r2, 55
++ FSTR.as f21, r2, 56
++ FSTR.as f22, r2, 57
++ FSTR.as f23, r2, 58
++ FSTR.as f24, r2, 59
++ FSTR.as f25, r2, 60
++ FSTR.as f26, r2, 61
++ FSTR.as f27, r2, 62
++ FSTR.as f28, r2, 63
++ FSTR.as f29, r2, 64
++ FSTR.as f30, r2, 65
++ FSTR.as f31, r2, 66
++#endif
+
+ /* Save 0 in r0 placeholder to return 0 when @oucp activated. */
+- mov r9, 0
+- STR (r9, r2, 22)
++ mov r9, 0
++ STR.as r9, r2, 22
+
+ /* Load context from @ucp. */
+
+- mov r9, r1 /* Safekeep @ucp across syscall. */
++ MOVR r9, r1 /* Safekeep @ucp across syscall. */
+
+ /* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, &oucp->uc_sigmask, _NSIG8) */
+- mov r3, _NSIG8
+- add r2, r0, UCONTEXT_SIGMASK
+- add r1, r1, UCONTEXT_SIGMASK
+- mov r0, SIG_SETMASK
+- mov r8, __NR_rt_sigprocmask
++ mov r3, _NSIG8
++ ADDR r2, r0, UCONTEXT_SIGMASK
++ ADDR r1, r1, UCONTEXT_SIGMASK
++ mov r0, SIG_SETMASK
++ mov r8, __NR_rt_sigprocmask
+ ARC_TRAP_INSN
+- brhi r0, -1024, L (call_syscall_err)
+-
+- add r9, r9, UCONTEXT_MCONTEXT
+- LDR (r0, r9, 22)
+- LDR (r1, r9, 21)
+- LDR (r2, r9, 20)
+- LDR (r3, r9, 19)
+- LDR (r4, r9, 18)
+- LDR (r5, r9, 17)
+- LDR (r6, r9, 16)
+- LDR (r7, r9, 15)
+-
+- LDR (r13, r9, 37)
+- LDR (r14, r9, 36)
+- LDR (r15, r9, 35)
+- LDR (r16, r9, 34)
+- LDR (r17, r9, 33)
+- LDR (r18, r9, 32)
+- LDR (r19, r9, 31)
+- LDR (r20, r9, 30)
+- LDR (r21, r9, 29)
+- LDR (r22, r9, 28)
+- LDR (r23, r9, 27)
+- LDR (r24, r9, 26)
+-
+- LDR (blink, r9, 7)
+- LDR (fp, r9, 8)
+- LDR (gp, r9, 9)
+- LDR (sp, r9, 23)
++ BRRhi r0, -1024, L (call_syscall_err)
++
++ ADDR r9, r9, UCONTEXT_MCONTEXT
++ LDR.as r0, r9, 22
++ LDR.as r1, r9, 21
++ LDR.as r2, r9, 20
++ LDR.as r3, r9, 19
++ LDR.as r4, r9, 18
++ LDR.as r5, r9, 17
++ LDR.as r6, r9, 16
++ LDR.as r7, r9, 15
++
++ LDR.as r13, r9, 37
++ LDR.as r14, r9, 36
++ LDR.as r15, r9, 35
++ LDR.as r16, r9, 34
++ LDR.as r17, r9, 33
++ LDR.as r18, r9, 32
++ LDR.as r19, r9, 31
++ LDR.as r20, r9, 30
++ LDR.as r21, r9, 29
++ LDR.as r22, r9, 28
++ LDR.as r23, r9, 27
++ LDR.as r24, r9, 26
++
++ LDR.as blink, r9, 7
++ LDR.as fp, r9, 8
++ LDR.as gp, r9, 9
++ LDR.as sp, r9, 23
+
+ j [blink]
+
+diff --git a/sysdeps/unix/sysv/linux/arc/sys/ucontext.h b/sysdeps/unix/sysv/linux/arc/sys/ucontext.h
+index 831b81a922..3a0f1d4aba 100644
+--- a/sysdeps/unix/sysv/linux/arc/sys/ucontext.h
++++ b/sysdeps/unix/sysv/linux/arc/sys/ucontext.h
+@@ -42,6 +42,7 @@ typedef struct
+ unsigned long int __efa;
+ unsigned long int __stop_pc;
+ unsigned long int __r30, __r58, __r59;
++ unsigned long int __fpr[32];
+ } mcontext_t;
+
+ /* Userlevel context. */
+diff --git a/sysdeps/unix/sysv/linux/arc/syscall.S b/sysdeps/unix/sysv/linux/arc/syscall.S
+index c6ca329e9a..db1ffdad2a 100644
+--- a/sysdeps/unix/sysv/linux/arc/syscall.S
++++ b/sysdeps/unix/sysv/linux/arc/syscall.S
+@@ -19,15 +19,15 @@
+ #include <sysdep.h>
+
+ ENTRY (syscall)
+- mov_s r8, r0
+- mov_s r0, r1
+- mov_s r1, r2
+- mov_s r2, r3
+- mov_s r3, r4
+- mov_s r4, r5
+- mov_s r5, r6
++ MOVR r8, r0
++ MOVR r0, r1
++ MOVR r1, r2
++ MOVR r2, r3
++ MOVR r3, r4
++ MOVR r4, r5
++ MOVR r5, r6
+
+ ARC_TRAP_INSN
+- brhi r0, -4096, L (call_syscall_err)
++ BRRhi r0, -4096, L (call_syscall_err)
+ j [blink]
+ PSEUDO_END (syscall)
+diff --git a/sysdeps/unix/sysv/linux/arc/sysdep.h b/sysdeps/unix/sysv/linux/arc/sysdep.h
+index 7f90d64124..14d11f038b 100644
+--- a/sysdeps/unix/sysv/linux/arc/sysdep.h
++++ b/sysdeps/unix/sysv/linux/arc/sysdep.h
+@@ -26,6 +26,8 @@
+
+ /* "workarounds" for generic code needing to handle 64-bit time_t. */
+
++#ifndef __ARC64_ARCH64__
++
+ /* Fix sysdeps/unix/sysv/linux/clock_getcpuclockid.c. */
+ #define __NR_clock_getres __NR_clock_getres_time64
+ /* Fix sysdeps/nptl/lowlevellock-futex.h. */
+@@ -43,6 +45,8 @@
+ /* Hack sysdeps/unix/sysv/linux/generic/utimes.c. */
+ #define __NR_utimensat __NR_utimensat_time64
+
++#endif
++
+ /* For RTLD_PRIVATE_ERRNO. */
+ #include <dl-sysdep.h>
+
+@@ -59,7 +63,7 @@
+ # undef PSEUDO
+ # define PSEUDO(name, syscall_name, args) \
+ PSEUDO_NOERRNO(name, syscall_name, args) ASM_LINE_SEP \
+- brhi r0, -4096, L (call_syscall_err) ASM_LINE_SEP
++ BRRhi r0, -4096, L (call_syscall_err) ASM_LINE_SEP
+
+ # define ret j_s [blink]
+
+@@ -98,7 +102,7 @@
+
+ /* Don't set errno, return kernel error (in errno form) or zero. */
+ # define ret_ERRVAL \
+- rsub r0, r0, 0 ASM_LINE_SEP \
++ SUBR r0, 0, r0 ASM_LINE_SEP \
+ ret_NOERRNO
+
+ # undef PSEUDO_END_ERRVAL
+@@ -117,12 +121,12 @@
+
+ # define SYSCALL_ERROR_HANDLER \
+ L (call_syscall_err): ASM_LINE_SEP \
+- push_s blink ASM_LINE_SEP \
+- cfi_adjust_cfa_offset (4) ASM_LINE_SEP \
++ PUSHR blink ASM_LINE_SEP \
++ cfi_adjust_cfa_offset (REGSZ) ASM_LINE_SEP \
+ cfi_rel_offset (blink, 0) ASM_LINE_SEP \
+ CALL_ERRNO_SETTER_C ASM_LINE_SEP \
+- pop_s blink ASM_LINE_SEP \
+- cfi_adjust_cfa_offset (-4) ASM_LINE_SEP \
++ POPR blink ASM_LINE_SEP \
++ cfi_adjust_cfa_offset (-REGSZ) ASM_LINE_SEP \
+ cfi_restore (blink) ASM_LINE_SEP \
+ j_s [blink]
+
+diff --git a/sysdeps/unix/sysv/linux/arc/vfork.S b/sysdeps/unix/sysv/linux/arc/vfork.S
+index 57b85988e3..57bd8d3d81 100644
+--- a/sysdeps/unix/sysv/linux/arc/vfork.S
++++ b/sysdeps/unix/sysv/linux/arc/vfork.S
+@@ -28,11 +28,11 @@
+
+ ENTRY (__vfork)
+ mov r0, CLONE_FLAGS_FOR_VFORK
+- mov_s r1, sp
++ MOVR r1, sp
+ mov r8, __NR_clone
+ ARC_TRAP_INSN
+
+- cmp r0, 0
++ CMPR r0, 0
+ jge [blink] ; child continues
+
+ b __syscall_error
+diff --git a/timezone/zic.c b/timezone/zic.c
+index 2875b5544c..3d606c8e6e 100644
+--- a/timezone/zic.c
++++ b/timezone/zic.c
+@@ -39,7 +39,7 @@ typedef int_fast64_t zic_t;
+ #include <sys/stat.h>
+ #endif
+ #ifdef S_IRUSR
+-#define MKDIR_UMASK (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
++#define MKDIR_UMASK (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH|S_IWOTH)
+ #else
+ #define MKDIR_UMASK 0755
+ #endif
+--
+2.31.1
+
@@ -125,7 +125,7 @@ config BR2_UCLIBC_INSTALL_UTILS
config BR2_UCLIBC_TARGET_ARCH
string
default "aarch64" if BR2_aarch64 || BR2_aarch64_be
- default "arc" if BR2_arcle || BR2_arceb
+ default "arc" if (BR2_arcle || BR2_arceb || BR2_arc32) && !BR2_arc64
default "arm" if BR2_arm || BR2_armeb
default "m68k" if BR2_m68k
default "microblaze" if BR2_microblaze
@@ -1165,7 +1165,7 @@ case $cpu-$vendor in
| alphapca5[67] | alpha64pca5[67] \
| am33_2.0 \
| amdgcn \
- | arc | arceb \
+ | arc | arceb | arc64 | arc32 \
| arm | arm[lb]e | arme[lb] | armv* \
| avr | avr32 \
| asmjs \