new file mode 100644
@@ -0,0 +1,32 @@
+/* longjmp, Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+ .section .text
+
+ENTRY (__longjmp)
+ /* Restore registers. */
+ lmw.bim $r6, [$r0], $r14, #0xf
+
+ /* Return error code. Make sure error code is not 0. */
+ bnez $r1, .Ldone
+ movi $r1, #1
+.Ldone:
+ addi $r0, $r1, #0
+ ret
+END (__longjmp)
new file mode 100644
@@ -0,0 +1,29 @@
+/* Define __BYTE_ORDER. Andes nds32 version
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+
+
+#ifdef __NDS32_EB__
+# error "Big-endian is un-supported."
+#else
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif /* !__NDS32_EB__ */
new file mode 100644
@@ -0,0 +1,54 @@
+/* Machine-specific declarations for dynamic linker interface. Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _LINK_H
+# error "Never include <bits/link.h> directly; use <link.h> instead."
+#endif
+
+/* Registers for entry into PLT on NDS32. */
+typedef struct La_nds32_regs
+{
+ uint32_t lr_reg[6];
+ uint32_t lr_gp;
+ uint32_t lr_lp;
+ uint32_t lr_sp;
+} La_nds32_regs;
+
+/* Return values for calls from PLT on NDS32. */
+typedef struct La_nds32_retval
+{
+ uint32_t lrv_reg[2];
+} La_nds32_retval;
+
+__BEGIN_DECLS
+
+extern ElfW(Addr) la_nds32_gnu_pltenter (ElfW(Sym) *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ La_nds32_regs *__regs,
+ unsigned int *__flags,
+ const char *__symname,
+ long int *__framesizep);
+extern unsigned int la_nds32_gnu_pltexit (ElfW(Sym) *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ const La_nds32_regs *__inregs,
+ La_nds32_retval *__outregs,
+ const char *__symname);
+
+__END_DECLS
new file mode 100644
@@ -0,0 +1,45 @@
+/* Define the machine-dependent type `jmp_buf'. Andes nds32 version.
+ Copyright (C) 2018-2019 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H 1
+
+/* For nds32, there are 32 general purpose registers.
+ 1. Caller saved register for parameter passing: $r0 - $r5
+ 2. Callee saved register: $r6 - $r14
+ 3. Assembler reserved register: $r15
+ 4. Caller saved register: $r6 - $r24
+ 5. Thread pointer register: $r25
+ 6. Reserved register for kernel space: $r26 - $27
+ 7. Frame pointer: $r28
+ 8. Global pointer: $r29
+ 9. Link register: $r30
+ 10.Stack pointer: $r31
+
+ Only callee saved register and $r28-$r31 needs to store in jmp_buf.
+ Reserved(For 8-byte align if needed). */
+
+typedef struct __jmp_buf_internal_tag
+ {
+ /* Callee-saved registers: $r6 - $r14, $fp, $gp, $lp, $sp: $r28 - $r31. */
+ int __regs[13];
+
+ } __jmp_buf[1] __attribute__ ((__aligned__ (8)));
+
+#endif /* _BITS_SETJMP_H */
new file mode 100644
@@ -0,0 +1 @@
+/* _setjmp is in setjmp.S. */
new file mode 100644
@@ -0,0 +1 @@
+/* setjmp is in setjmp.S. */
new file mode 100644
@@ -0,0 +1,21 @@
+/* Definition of object in frame unwind info. Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#define FIRST_PSEUDO_REGISTER 34
+
+#include <sysdeps/generic/gccframe.h>
new file mode 100644
@@ -0,0 +1,34 @@
+/* Private macros for accessing __jmp_buf contents. Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#define JB_R6 0
+#define JB_R7 1
+#define JB_R8 2
+#define JB_R9 3
+#define JB_R10 4
+#define JB_R11 5
+#define JB_R12 6
+#define JB_R13 7
+#define JB_R14 8
+#define JB_FP 9
+#define JB_GP 10
+#define JB_LP 11
+#define JB_SP 12
+
+#define JB_FRAME_ADDRESS(buf) \
+ ((void *)buf[0].__regs[JB_SP])
new file mode 100644
@@ -0,0 +1,47 @@
+/* Examine __jmp_buf for unwinding frames. Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <setjmp.h>
+#include <jmpbuf-offsets.h>
+#include <stdint.h>
+#include <unwind.h>
+#include <sysdep.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
+ ((void *) (address) < &(jmpbuf)[0].__regs[JB_SP])
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf regs)
+{
+ uintptr_t sp = (uintptr_t) &(regs)[0].__regs[JB_SP];
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (sp);
+#endif
+ return sp;
+}
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
+
+/* We use the normal longjmp for unwinding. */
+#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
new file mode 100644
@@ -0,0 +1,25 @@
+/* Define nds32 link_map_machine
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+struct link_map_machine
+ {
+ ElfW(Addr) plt; /* Address of .plt. */
+ ElfW(Addr) gotplt; /* Address of .got. */
+ void *tlsdesc_table;
+ };
+
new file mode 100644
@@ -0,0 +1,34 @@
+/* profiling support for Andes nds32 version
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+static void __mcount_internal (unsigned long int frompc,
+ unsigned long int selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+static inline void __mcount_internal (unsigned long int frompc, \
+unsigned long int selfpc)
+
+
+#define MCOUNT \
+void _mcount (unsigned long int frompc) \
+{ \
+ __mcount_internal (frompc, (unsigned long int) RETURN_ADDRESS (0)); \
+}
+
new file mode 100644
@@ -0,0 +1,101 @@
+/* Memory copy. Andes nds32 version
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* void *memcpy (void *dst, const void *src, int n);
+
+ dst: $r0
+ src: $r1
+ n : $r2
+ ret: $r0 - pointer to the memory area dst. */
+
+ENTRY (memcpy)
+ /* Set $r3 as the dest. Keep value of $r0. */
+ move $r3, $r0
+ /* if len<4, go to byte-mode. */
+ slti $ta, $r2, 4
+ bnez $ta, .Lbyte_mode
+ andi $r4, $r3, 0x3
+ andi $r5, $r1, 0x3
+
+ /* handle unligned leading bytes. */
+ beqz $r5, .LWord_aligned
+ subri $r5, $r5, #4
+ sub $r2, $r2, $r5
+ add $r5, $r5, $r1
+
+.align 2
+1:
+ /* byte-mode copy loop. */
+ lbi.bi $r4, [$r1], 1
+ sbi.bi $r4, [$r3], 1
+ bne $r1, $r5, 1b
+
+.align 2
+.LWord_aligned:
+ /* assume cache-line size is 32 bytes. */
+ srli $r5, $r2, 5
+ beqz $r5, .Lword_mode
+ slli $r5, $r5, 5
+ add $r5, $r5, $r1
+ andi $r2, $r2, 0x1f
+
+ /* cache-line-mode copy loop. */
+.align 2
+5:
+ lmw.bim $r16, [$r1], $r23, #0
+ smw.bim $r16, [$r3], $r23, #0
+ /* Next cache-line. */
+ bne $r1, $r5, 5b
+
+.align 2
+.Lword_mode:
+ srli $r5, $r2, 2
+ beqz $r5, .Lbyte_mode
+ slli $r5, $r5, 2
+ add $r5, $r5, $r1
+ andi $r2, $r2, 0x3
+
+ /* word-mode copy loop. */
+.align 2
+3:
+ lmw.bim $r4, [$r1], $r4, #0
+ smw.bim $r4, [$r3], $r4, #0
+ /* Next word. */
+ bne $r1, $r5, 3b
+
+.align 2
+.Lbyte_mode:
+ beqz $r2, .Lend
+ add $r5, $r1, $r2
+
+.align 2
+4:
+ /* byte-mode copy loop. */
+ lbi.bi $r4, [$r1], #1
+ sbi.bi $r4, [$r3], #1
+ bne $r1, $r5, 4b
+
+.align 2
+.Lend:
+ ret
+
+END (memcpy)
+libc_hidden_builtin_def (memcpy)
+
new file mode 100644
@@ -0,0 +1,120 @@
+/* Optimized version for Andes nds32.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+/* void *memset (void *dst, int val, int len);
+
+ dst: $r0
+ val: $r1
+ len: $r2
+ ret: $r0 - pointer to the memory area dst. */
+
+ENTRY (memset)
+ /* Set $r3 as the dest. Keep value of $r0. */
+ move $r3, $r0
+ /* if len<4, go to byte-mode. */
+ slti $ta, $r2, 4
+ bnez $ta, .Lbyte_mode
+ andi $r5, $r3, 0x3
+ beqz $r5, .Lword_prepare
+ /* size to next word-aligned addres. */
+ subri $r5, $r5, #4
+ /* $r2: bytes left. */
+ sub $r2, $r2, $r5
+ add $r5, $r5, $r0
+
+.align 2
+1:
+ /* byte-mode set loop. */
+ sbi.bi $r1, [$r3], 1
+ bne $r3, $r5, 1b
+
+.align 2
+.Lword_prepare:
+ /* prepare word. */
+
+ /* $r1 <- 0x000000ab. */
+ andi $r1, $r1, 0xff
+ /* $r4 <- 0x0000ab00. */
+ slli $r4, $r1, 8
+ /* $r1 <- 0x0000abab. */
+ or $r1, $r1, $r4
+ /* $r4 <- 0xabab0000. */
+ slli $r4, $r1, 16
+ /* $r1 <- 0xabababab. */
+ or $r1, $r1, $r4
+
+ /* assume cache-line size is 32 bytes. */
+ srli $r5, $r2, 5
+ beqz $r5, .Lword_mode
+ slli $r5, $r5, 5
+ add $r5, $r5, $r3
+ andi $r2, $r2, 0x1f
+
+ /* cache-line-mode set loop. */
+ move $r16,$r1
+ move $r17,$r1
+ move $r18,$r1
+ move $r19,$r1
+ move $r20,$r1
+ move $r21,$r1
+ move $r22,$r1
+ move $r23,$r1
+
+.align 2
+4:
+ /* $r3 is dst. */
+ smw.bim $r16, [$r3], $r23, #0
+ /* Next cache-line. */
+ bne $r3, $r5, 4b
+
+.align 2
+.Lword_mode:
+ /* $r5 <- n words to set. */
+ srli $r5, $r2, 2
+ beqz $r5, .Lbyte_mode
+ slli $r5, $r5, 2
+ add $r5, $r5, $r3
+ andi $r2, $r2, 0x3
+
+ /* word-mode set loop. */
+.align 2
+2:
+ smw.bim $r1, [$r3], $r1, #0
+ /* Next word. */
+ bne $r3, $r5, 2b
+
+.align 2
+.Lbyte_mode:
+ beqz $r2, .Lend
+ add $r5, $r3, $r2
+
+.align 2
+3:
+ /* byte-mode set loops. */
+ sbi.bi $r1, [$r3], #1
+ bne $r3, $r5, 3b
+.align 2
+.Lend:
+ ret
+
+END (memset)
+libc_hidden_builtin_def (memset)
+
new file mode 100644
@@ -0,0 +1,21 @@
+/* Machine-specific definitions for memory usage profiling, Andes nds32 version.
+ Copyright (C) 2018-2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define GETSP() ({ register uintptr_t stack_ptr asm ("$sp"); stack_ptr; })
+
+#include <sysdeps/generic/memusage.h>
new file mode 100644
@@ -0,0 +1,33 @@
+/* pthread machine parameter definitions, Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+/* Default stack size. */
+#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning. */
+#define STACK_ALIGN 16
+
+/* Minimal stack size after allocating thread descriptor and guard size. */
+#define MINIMAL_REST_STACK 2048
+
+/* Alignment requirement for TCB. */
+#define TCB_ALIGNMENT 16
+
+
+/* Location of current stack frame. */
+#define CURRENT_STACK_FRAME __builtin_frame_address (0)
new file mode 100644
@@ -0,0 +1,64 @@
+/* setjmp for Andes nds32.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+
+#include <sysdep.h>
+ .section .text
+#ifdef __PIC__
+# define JMP_BY_R2(symbol) \
+ sethi $r3, hi20(symbol@PLT); \
+ ori $r3, $r3, lo12(symbol@PLT); \
+ add $r3, $r3, $r2; \
+ jr $r3
+# define TCALL_SIGJMP_SAVE \
+ GET_GTABLE ($r2); \
+ JMP_BY_R2 (__sigjmp_save)
+#else
+# define JMP_BY_R2(symbol) \
+ la $r15, symbol; \
+ jr $r15
+# define TCALL_SIGJMP_SAVE \
+ JMP_BY_R2 (__sigjmp_save)
+#endif /* !__PIC__ */
+
+ENTRY (_setjmp)
+ move $r1, #0
+ /* Initialize $r2 as $gp value. */
+ GET_GTABLE ($r2)
+ /* Make a tail call to __sigsetjmp. */
+ JMP_BY_R2 (HIDDEN_JUMPTARGET (__sigsetjmp))
+END (_setjmp)
+ENTRY (setjmp)
+ move $r1, #1
+ /* Initialize $r2 as $gp value. */
+ GET_GTABLE ($r2)
+ /* Make a tail call to __sigsetjmp. */
+ JMP_BY_R2 (HIDDEN_JUMPTARGET (__sigsetjmp))
+END (setjmp)
+
+ENTRY (__sigsetjmp)
+ move $r2, $r0
+ /* Save callee-saved registers into buffer. */
+ smw.bim $r6, [$r2], $r14, #0xf
+
+ /* Make a tail call to __sigjmp_save. */
+ TCALL_SIGJMP_SAVE
+
+END (__sigsetjmp)
+hidden_def (__sigsetjmp)
+weak_alias (_setjmp, __GI__setjmp)
new file mode 100644
@@ -0,0 +1,50 @@
+/* Override generic sotruss-lib.c to define actual functions.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#define HAVE_ARCH_PLTENTER
+#define HAVE_ARCH_PLTEXIT
+
+#include <elf/sotruss-lib.c>
+
+
+ElfW(Addr)
+la_nds32_gnu_pltenter (ElfW(Sym) *sym __attribute__ ((unused)),
+ unsigned int ndx __attribute__ ((unused)),
+ uintptr_t *refcook, uintptr_t *defcook,
+ La_nds32_regs *regs, unsigned int *flags,
+ const char *symname, long int *framesizep)
+{
+ print_enter (refcook, defcook, symname,
+ regs->lr_reg[0], regs->lr_reg[1], regs->lr_reg[2],
+ *flags);
+
+ /* No need to copy anything, we will not need the parameters in any case. */
+ *framesizep = 0;
+
+ return sym->st_value;
+}
+
+unsigned int
+la_nds32_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
+ uintptr_t *defcook, const struct La_nds32_regs *inregs,
+ struct La_nds32_retval *outregs, const char *symname)
+{
+ print_exit (refcook, defcook, symname, outregs->lrv_reg[0]);
+
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,32 @@
+/* Stack environment definitions. Andes nds32.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+#include <elf.h>
+
+#define _STACK_GROWS_DOWN 1
+
+/* Default to a non-executable stack. */
+#define DEFAULT_STACK_PERMS (PF_R|PF_W)
+
+#endif /* _STACKINFO_H */
new file mode 100644
@@ -0,0 +1,111 @@
+/* Optimized version for Andes nds32.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+ .text
+
+/* Function:
+ strcmp - compare two strings.
+ Syntax:
+ int strcmp (const char *s1, const char *s2);
+ Description:
+ The strcmp function compares the string pointed to by s1 to the string
+ pointed to by s2.
+ Return value:
+ Return n integer greater than, equal to, or less than zero, accordingly
+ as the string pointed to by s1 is greater than, equal to, or less than
+ the string pointed to by s2. */
+ENTRY (strcmp)
+#if defined (__NDS32_EXT_STRING__)
+1:
+ lmwzb.bm $r2, [$r0], $r2, #0
+ lmwzb.bm $r3, [$r1], $r3, #0
+ ffzmism $r4, $r2, $r3
+ beqz $r4, 1b
+ lb $r2, [$r0+$r4]
+ lb $r3, [$r1+$r4]
+ sub $r0, $r2, $r3
+ ret $lp
+#else /* !__NDS32_EXT_STRING__ */
+ /* If s1 or s2 are unaligned, then compare bytes. */
+ or $r5, $r1, $r0
+ andi $r5, $r5, #3
+ bnez $r5, .Lbyte_mode
+
+ /* If s1 and s2 are word-aligned, compare them a word at a time. */
+ lwi $r5, [$r0+(0)]
+ lwi $r3, [$r1+(0)]
+.off_16bit
+ /* Dedicate 4-byte to eliminate NOP caused by ".align 2"
+ A difference was detected, so search bytewise. */
+ bne $r5, $r3, .Lbyte_mode
+.restore_16bit
+
+
+ /* It's more efficient to set bit mask outside the word_mode loop.
+ Set $r4 as -0x01010101
+ Set $r2 as 0x80808080. */
+ sethi $r4, hi20(0xFEFEFEFF)
+ ori $r4, $r4, lo12(0xFEFEFEFF)
+ sethi $r2, hi20(0x80808080)
+ ori $r2, $r2, lo12(0x80808080)
+
+.align 2
+.Lword_mode_loop:
+ /* #define DETECTNULL(X) (((X) - 0x01010101) & ~(X) & 0x80808080)
+ DETECTNULL returns nonzero if (long)X contains a NULL byte. */
+
+/* Force 32-bit instruction to gain better performance. */
+.off_16bit
+ /* $r3 = ~(X)
+ $r5 = ((X) - 0x01010101)
+ $r5 = ~(X) & ((X) - 0x01010101)
+ $r5 = r5 & 0x80808080. */
+ nor $r3, $r5, $r5
+ add $r5, $r5, $r4
+ and $r5, $r5, $r3
+ and $r5, $r5, $r2
+.restore_16bit
+ /* Branch if $r5 is nonzero. */
+ bnez $r5, .Lfound_null
+ lmw.aim $r5, [$r0], $r5, 0
+ lmw.aim $r3, [$r1], $r3, 0
+ beq $r5, $r3, .Lword_mode_loop
+
+.align 2
+.Lbyte_mode:
+ /* Byte-mode compare. */
+ lbi.bi $r5, [$r0], #1
+ lbi.bi $r3, [$r1], #1
+ /* Mismatch, done. */
+ bne $r5, $r3, 1f
+ bnez $r5, .Lbyte_mode
+1:
+ sub $r0, $r5, $r3
+ ret $lp
+
+.align 2
+.Lfound_null:
+ /* To get here, *a1 == *a2, thus if we find a null in *a1,
+ then the strings must be equal, so return zero. */
+ movi $r0, #0
+ ret $lp
+
+#endif /* !__NDS32_EXT_STRING__ */
+END (strcmp)
+libc_hidden_builtin_def (strcmp)
new file mode 100644
@@ -0,0 +1,85 @@
+/* Optimized version for Andes nds32.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+ .text
+
+/* Function:
+ strcpy - copy a string.
+ Syntax:
+ char *strcpy(char *dest, const char *src);
+ Description:
+ This function copies the string pointed to by src into the array
+ point to by dest (include the teminating null character).
+ Return value:
+ strcpy returns the dest as given. */
+ENTRY (strcpy)
+ /* Keep $r0 as reture value. */
+ move $r3, $r0
+#if defined (__NDS32_EXT_STRING__)
+1:
+ lmwzb.bm $r4, [$r1], $r4, #0
+ smwzb.bm $r4, [$r3], $r4, #0
+ ffzmism $r2, $r4, $r4
+ /* $r2 = 0, no zero byte exist. */
+ beqz $r2, 1b
+ ret $lp
+
+#else /* !__NDS32_EXT_STRING__ */
+ GET_GTABLE ($gp)
+ /* If SRC or DEST is unaligned, then copy bytes. */
+ or $r2, $r1, $r0
+ andi $r2, $r2, #3
+ bnez $r2, .Lbyte_mode
+
+.Lword_mode:
+ /* SRC and DEST are both "long int" aligned, try to do "long int"
+ sized copies. */
+ /* #define DETECTNULL(X) (((X) - 0x01010101) & ~(X) & 0x80808080)
+ DETECTNULL returns nonzero if (long)X contains a NULL byte. */
+ /* $r2 is X. */
+ lwi $r2, [$r1+(0)]
+ sethi $r4, hi20(0xFEFEFEFF)
+ ori $r4, $r4, lo12(0xFEFEFEFF)
+ /* $r4 = ((X) - 0x01010101)
+ $r5 = ~(X)
+ $r4 = ~(X) & ((X) - 0x01010101). */
+ add $r4, $r2, $r4
+ nor $r5, $r2, $r2
+ and $r4, $r5, $r4
+ sethi $r5, hi20(0x80808080)
+ ori $r5, $r5, lo12(0x80808080)
+ /* $r4 = $r4 & 0x80808080
+ Contains a NULL byte. */
+ and $r4, $r4, $r5
+ bnez $r4, .Lbyte_mode
+ swi.bi $r2, [$r3], #4
+ addi $r1, $r1, #4
+ b .Lword_mode
+
+.Lbyte_mode:
+ /* $r4 <- *src++. */
+ lbi.bi $r4, [$r1], #1
+ /* $r4 -> *dest++. */
+ sbi.bi $r4, [$r3], #1
+ bnez $r4, .Lbyte_mode
+ ret $lp
+#endif /* !__NDS32_EXT_STRING__ */
+END (strcpy)
+libc_hidden_builtin_def (strcpy)
new file mode 100644
@@ -0,0 +1,58 @@
+/* Assembler macros. Andes nds32.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdeps/generic/sysdep.h>
+
+#ifdef __ASSEMBLER__
+
+/* Define an entry point visible from C. */
+# ifdef __PIC__
+# define ENTRY(name) \
+ .pic \
+ .align 2; \
+ .globl name; \
+ .func name; \
+ .type name, @function; \
+ name: \
+ cfi_startproc;
+# else
+# define ENTRY(name) \
+ .align 2; \
+ .globl name; \
+ .func name; \
+ .type name, @function; \
+ name: \
+ cfi_startproc;
+# endif /* !__PIC__ */
+
+# undef END
+# define END(name) \
+ cfi_endproc; \
+ .endfunc; \
+ .size name, .-name
+
+# define GET_GTABLE(reg) \
+ sethi reg, hi20(_GLOBAL_OFFSET_TABLE_ - 8); \
+ ori reg, reg, lo12(_GLOBAL_OFFSET_TABLE_ - 4); \
+ add5.pc reg;
+
+
+
+#endif /* __ASSEMBLER__. */
+
+
new file mode 100644
@@ -0,0 +1,23 @@
+/* Definitions for testing PLT entry/exit auditing. Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+
+#define pltenter la_nds32_gnu_pltenter
+#define pltexit la_nds32_gnu_pltexit
+#define La_regs La_nds32_regs
+#define La_retval La_nds32_retval
+#define int_retval lrv_reg[0]
new file mode 100644
@@ -0,0 +1,24 @@
+/* jump buffer constants. Andes nds32 version.
+ Copyright (C) 2018-2019 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
+ <http://www.gnu.org/licenses/>. */
+# define JMP_BUF_SIZE 184
+# define SIGJMP_BUF_SIZE 184
+# define JMP_BUF_ALIGN 8
+# define SIGJMP_BUF_ALIGN 8
+# define MASK_WAS_SAVED_OFFSET 52
+# define SAVED_MASK_OFFSET 56
new file mode 100644
@@ -0,0 +1,19 @@
+# See scripts/check-localplt.awk for how this file is processed.
+# PLT use is required for the malloc family and for matherr because
+# users can define their own functions and have library internals call them.
+libc.so: calloc
+libc.so: free
+libc.so: malloc
+libc.so: memalign
+libc.so: realloc
+# The main malloc is interposed into the dynamic linker, for
+# allocations after the initial link (when dlopen is used).
+ld.so: malloc
+ld.so: calloc
+ld.so: realloc
+ld.so: free
+# The TLS-enabled version of these functions is interposed from libc.so.
+ld.so: _dl_signal_error
+ld.so: _dl_catch_error
+ld.so: _dl_signal_exception
+ld.so: _dl_catch_exception