new file mode 100644
@@ -0,0 +1,66 @@
+/* Wrapper around clone system call, Andes nds32 version.
+ Copyright (C) 1996-2018 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/>. */
+
+/* clone() is even more special than fork() as it mucks with stacks
+ and invokes a function in the right context after its all over. */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+/* int clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
+ void *parent_tidptr, void *tls, void *child_tidptr). */
+
+ENTRY(__clone)
+ /* Sanity check arguments. */
+ beqz $r0, 1f
+ bnez $r1, 2f
+1:
+ movi $r0, -EINVAL
+5:
+ j SYSCALL_ERROR_LABEL
+2:
+ /* Child's $sp will be $r1, push to child's stack only. */
+ addi $r1, $r1, -4
+ swi.p $r3, [$r1], -4
+ swi $r0, [$r1]
+
+ /* Do the system call. */
+ move $r0, $r2
+ move $r3, $r5
+ move $r2, $r4
+ lwi $r4, [$sp]
+ __do_syscall (clone)
+
+ beqz $r0, 4f
+ bltz $r0, 5b
+ ret
+4:
+ .cfi_undefined lp
+ /* Restore the arg for user's function. */
+ pop $r1 /* Function pointer. */
+ pop $r0 /* Argument pointer. */
+
+ /* Call the user's function. */
+ bral $r1
+
+ __do_syscall (exit)
+
+PSEUDO_END (__clone)
+libc_hidden_def (__clone)
+weak_alias (__clone, clone)
new file mode 100644
@@ -0,0 +1,31 @@
+/* Low-level statistical profiling support function, Andes Linux/nds32 version.
+ Copyright (C) 1996-2018 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 <signal.h>
+#include <sigcontextinfo.h>
+
+static void
+__profil_counter (int signo, struct ucontext_t * scp)
+{
+ profil_count ((void *) GET_PC (scp));
+
+ /* This is a hack to prevent the compiler from implementing the
+ * above function call as a sibcall. The sibcall would overwrite
+ * the signal context. */
+ asm volatile ("");
+}
new file mode 100644
@@ -0,0 +1 @@
+/* Not needed. */
new file mode 100644
@@ -0,0 +1,39 @@
+/* System call interface, Andes nds32 version.
+ Copyright (C) 2001-2018 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 <errno.h>
+#include <stdarg.h>
+#include <sysdep.h>
+long int
+syscall (long int __sysno, ...)
+{
+ int result;
+ unsigned long int arg1, arg2, arg3, arg4, arg5, arg6;
+ va_list arg;
+ va_start (arg, __sysno);
+ arg1 = va_arg (arg, unsigned long int);
+ arg2 = va_arg (arg, unsigned long int);
+ arg3 = va_arg (arg, unsigned long int);
+ arg4 = va_arg (arg, unsigned long int);
+ arg5 = va_arg (arg, unsigned long int);
+ arg6 = va_arg (arg, unsigned long int);
+ va_end (arg);
+ result = INLINE_SYSCALL_NCS (__sysno, 6,
+ arg1, arg2, arg3, arg4, arg5, arg6);
+ return result;
+}
new file mode 100644
@@ -0,0 +1,2 @@
+# File name Caller Syscall name Args Strong name
+cacheflush - cacheflush i:pii cacheflush
new file mode 100644
@@ -0,0 +1,30 @@
+/* Stach an error number into errno
+ Copyright (C) 2011-2018 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>
+#include <errno.h>
+
+/* This routine is jumped to by all the syscall handlers, to stash
+ an error number into errno. */
+long int
+__syscall_error (long int err)
+{
+ __set_errno (- err);
+ return -1;
+}
new file mode 100644
@@ -0,0 +1,337 @@
+/* Assembly macros for Andes nds32.
+ Copyright (C) 2011-2018 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 _LINUX_NDS32_SYSDEP_H
+#define _LINUX_NDS32_SYSDEP_H 1
+
+#include <sysdeps/unix/sysdep.h>
+#include <sysdeps/nds32/sysdep.h>
+#include <sysdeps/unix/sysv/linux/generic/sysdep.h>
+
+#include <dl-sysdep.h>
+
+#include <tls.h>
+
+/* In order to get __set_errno() definition in INLINE_SYSCALL. */
+#ifndef __ASSEMBLER__
+# include <errno.h>
+#endif
+
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
+#ifdef __ASSEMBLER__
+
+# define __do_syscall(syscall_name) \
+ movi $r15, SYS_ify (syscall_name); \
+ syscall 0x0;
+
+# define ADJUST_GP \
+ smw.adm $sp,[$sp],$sp,#0x6; \
+ cfi_startproc; \
+ .cfi_adjust_cfa_offset 8; \
+ .cfi_rel_offset gp, 0; \
+ .cfi_rel_offset lp, 4; \
+ GET_GTABLE ($gp)
+
+# define RECOVER_GP \
+ lmw.bim $sp,[$sp],$sp,#0x6; \
+ .cfi_adjust_cfa_offset -8; \
+ .cfi_restore gp; \
+ .cfi_restore lp; \
+ cfi_endproc;
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ .align 2; \
+ ENTRY(name); \
+ __do_syscall (syscall_name); \
+ bgez $r0, 2f; \
+ sltsi $r1, $r0, -4096; \
+ beqz $r1, SYSCALL_ERROR_LABEL; \
+ 2:
+
+# undef PSEUDO_END
+# define PSEUDO_END(sym) \
+ cfi_endproc; \
+ SYSCALL_ERROR_HANDLER \
+ cfi_startproc; \
+ END(sym)
+
+/* Performs a system call, not setting errno. */
+# define PSEUDO_NOERRNO(name, syscall_name, args) \
+ ENTRY (name); \
+ __do_syscall (syscall_name);
+
+# undef PSEUDO_END_NOERRNO
+# define PSEUDO_END_NOERRNO(name) \
+ END (name)
+
+/* Perfroms a system call, returning the error code. */
+# undef PSEUDO_ERRVAL
+# define PSEUDO_ERRVAL(name, syscall_name, args) \
+ PSEUDO_NOERRNO (name, syscall_name, args) \
+ neg $r0, $r0;
+
+# undef PSEUDO_END_ERRVAL
+# define PSEUDO_END_ERRVAL(sym) END (sym)
+
+# define ret_ERRVAL ret
+
+# define ret_NOERRNO ret
+
+# if !IS_IN (libc)
+# if RTLD_PRIVATE_ERRNO
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_LABEL: \
+ ADJUST_GP \
+ la $r1, (rtld_errno@GOT); \
+ neg $r0, $r0; \
+ sw $r0, [$r1]; \
+ li $r0, -1; \
+ RECOVER_GP \
+ ret;
+# else
+# ifdef PIC
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_LABEL: \
+ ADJUST_GP \
+ neg $r0, $r0; \
+ sethi $r15, hi20(errno@GOTTPOFF); \
+ ori $r15, $r15, lo12(errno@GOTTPOFF); \
+ lw $r15, [$r15 + $gp]; \
+ sw $r0, [$r25 + $r15]; \
+ li $r0, -1; \
+ RECOVER_GP \
+ ret;
+# else
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_LABEL: \
+ neg $r0, $r0; \
+ sethi $r15, hi20(errno@GOTTPOFF); \
+ lwi $r15, [$r15 + lo12(errno@GOTTPOFF)]; \
+ sw $r0, [$r25 + $r15]; \
+ li $r0, -1; \
+ ret;
+# endif /* !PIC */
+# endif
+# else
+# ifdef PIC
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_LABEL: \
+ ADJUST_GP \
+ bal __syscall_error; \
+ RECOVER_GP \
+ ret;
+# else
+# define SYSCALL_ERROR_HANDLER \
+SYSCALL_ERROR_LABEL: \
+ b __syscall_error;
+# endif /* !PIC */
+# endif /* In LIBC */
+
+#else
+
+/* List of system calls which are supported as vsyscalls. */
+# define HAVE_GETTIMEOFDAY_VSYSCALL 1
+# define HAVE_CLOCK_GETRES_VSYSCALL 1
+# define HAVE_CLOCK_GETTIME_VSYSCALL 1
+
+# define __issue_syscall(syscall_name) \
+" syscall 0x0;\n"
+
+/* Define a macro which expands into the inline wrapper code for a system
+ call. */
+# undef INLINE_SYSCALL
+# define INLINE_SYSCALL(name, nr, args...) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (err); \
+ long int result_var = INTERNAL_SYSCALL (name, err, nr, args); \
+ if (INTERNAL_SYSCALL_ERROR_P (result_var, err)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
+ result_var = -1 ; \
+ } \
+ result_var; \
+ })
+
+# undef INLINE_SYSCALL_NC
+# define INLINE_SYSCALL_NCS(name, nr, args...) \
+ ({ \
+ INTERNAL_SYSCALL_DECL (err); \
+ long int result_var = INTERNAL_SYSCALL_NCS (name, err, nr, args); \
+ if (INTERNAL_SYSCALL_ERROR_P (result_var, err)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
+ result_var = -1 ; \
+ } \
+ result_var; \
+ })
+# undef INTERNAL_SYSCALL_DECL
+# define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+# undef INTERNAL_SYSCALL_ERROR_P
+# define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((unsigned int) (val) >= 0xfffff001u)
+
+# undef INTERNAL_SYSCALL_ERRNO
+# define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+# undef INTERNAL_SYSCALL
+# define INTERNAL_SYSCALL(name, err, nr, args...) \
+ internal_syscall##nr (__NR_##name, err, args)
+
+# undef INTERNAL_SYSCALL_NCS
+# define INTERNAL_SYSCALL_NCS(syscallno, err, nr, args...) \
+ internal_syscall##nr (syscallno, err, args)
+
+# define internal_syscall0(name, err, dummy...) \
+ ({ \
+ register long int __res asm ("$r0"); \
+ register long int __num asm ("$r15") = (long) (name); \
+ __asm__ volatile ( \
+ __issue_syscall (name) \
+ : "=r" (__res) \
+ : "r" (__num) \
+ : __SYSCALL_CLOBBERS); \
+ __res; \
+ })
+
+# define internal_syscall1(name, err, arg1) \
+ ({ \
+ register long int __res asm ("$r0"); \
+ register long int __num asm ("$r15") = (long) (name); \
+ register long int __arg1 asm ("$r0") = (long) (arg1); \
+ __asm__ volatile ( \
+ __issue_syscall (name) \
+ : "=r" (__res) \
+ : "r" (__num) \
+ , "r" (__arg1) \
+ : __SYSCALL_CLOBBERS); \
+ __res; \
+ })
+
+# define internal_syscall2(name, err, arg1, arg2) \
+ ({ \
+ register long int __res asm ("$r0"); \
+ register long int __num asm ("$r15") = (long) (name); \
+ register long int __arg1 asm ("$r0") = (long) (arg1); \
+ register long int __arg2 asm ("$r1") = (long) (arg2); \
+ __asm__ volatile ( \
+ __issue_syscall (name) \
+ : "=r" (__res) \
+ : "r" (__num) \
+ , "r" (__arg1) \
+ , "r" (__arg2) \
+ : __SYSCALL_CLOBBERS); \
+ __res; \
+ })
+
+# define internal_syscall3(name, err, arg1, arg2, arg3) \
+ ({ \
+ register long int __res asm ("$r0"); \
+ register long int __num asm ("$r15") = (long) (name); \
+ register long int __arg1 asm ("$r0") = (long) (arg1); \
+ register long int __arg2 asm ("$r1") = (long) (arg2); \
+ register long int __arg3 asm ("$r2") = (long) (arg3); \
+ __asm__ volatile ( \
+ __issue_syscall (name) \
+ : "=r" (__res) \
+ : "r" (__num) \
+ , "r" (__arg1) \
+ , "r" (__arg2) \
+ , "r" (__arg3) \
+ : __SYSCALL_CLOBBERS); \
+ __res; \
+ })
+
+# define internal_syscall4(name, err, arg1, arg2, arg3, arg4) \
+ ({ \
+ register long int __res asm ("$r0"); \
+ register long int __num asm ("$r15") = (long) (name); \
+ register long int __arg1 asm ("$r0") = (long) (arg1); \
+ register long int __arg2 asm ("$r1") = (long) (arg2); \
+ register long int __arg3 asm ("$r2") = (long) (arg3); \
+ register long int __arg4 asm ("$r3") = (long) (arg4); \
+ __asm__ volatile ( \
+ __issue_syscall (name) \
+ : "=r" (__res) \
+ : "r" (__num) \
+ , "r" (__arg1) \
+ , "r" (__arg2) \
+ , "r" (__arg3) \
+ , "r" (__arg4) \
+ : __SYSCALL_CLOBBERS); \
+ __res; \
+ })
+
+# define internal_syscall5(name, err, arg1, arg2, arg3, arg4, arg5) \
+ ({ \
+ register long int __res asm ("$r0"); \
+ register long int __num asm ("$r15") = (long) (name); \
+ register long int __arg1 asm ("$r0") = (long) (arg1); \
+ register long int __arg2 asm ("$r1") = (long) (arg2); \
+ register long int __arg3 asm ("$r2") = (long) (arg3); \
+ register long int __arg4 asm ("$r3") = (long) (arg4); \
+ register long int __arg5 asm ("$r4") = (long) (arg5); \
+ __asm__ volatile ( \
+ __issue_syscall (name) \
+ : "=r" (__res) \
+ : "r" (__num) \
+ , "r" (__arg1) \
+ , "r" (__arg2) \
+ , "r" (__arg3) \
+ , "r" (__arg4) \
+ , "r" (__arg5) \
+ : __SYSCALL_CLOBBERS); \
+ __res; \
+ })
+
+# define internal_syscall6(name, err, arg1, arg2, arg3, arg4, arg5, arg6) \
+ ({ \
+ register long int __res asm ("$r0"); \
+ register long int __num asm ("$r15") = (long) (name); \
+ register long int __arg1 asm ("$r0") = (long) (arg1); \
+ register long int __arg2 asm ("$r1") = (long) (arg2); \
+ register long int __arg3 asm ("$r2") = (long) (arg3); \
+ register long int __arg4 asm ("$r3") = (long) (arg4); \
+ register long int __arg5 asm ("$r4") = (long) (arg5); \
+ register long int __arg6 asm ("$r5") = (long) (arg6); \
+ __asm__ volatile ( \
+ __issue_syscall (name) \
+ : "=r" (__res) \
+ : "r" (__num) \
+ , "r" (__arg1) \
+ , "r" (__arg2) \
+ , "r" (__arg3) \
+ , "r" (__arg4) \
+ , "r" (__arg5) \
+ , "r" (__arg6) \
+ : __SYSCALL_CLOBBERS); \
+ __res; \
+ })
+
+#define __SYSCALL_CLOBBERS "memory"
+
+#endif /* !__ASSEMBLER__ */
+
+#define PTR_MANGLE(var) (void) (var)
+#define PTR_DEMANGLE(var) (void) (var)
+
+#endif /* linux/nds32/sysdep.h */
This patch contains the Linux system call interface, as well as the definitions of a handful of system calls. 2018-05-30 Vincent Chen <vincentc@andestech.com> * sysdeps/unix/sysv/linux/nds32/clone.S: New file. * sysdeps/unix/sysv/linux/nds32/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/nds32/pt-vfork.S: Likewise. * sysdeps/unix/sysv/linux/nds32/syscall.c: Likewise. * sysdeps/unix/sysv/linux/nds32/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/nds32/sysdep.c: Likewise. * sysdeps/unix/sysv/linux/nds32/sysdep.h: Likewise. --- sysdeps/unix/sysv/linux/nds32/clone.S | 66 +++++ sysdeps/unix/sysv/linux/nds32/profil-counter.h | 31 +++ sysdeps/unix/sysv/linux/nds32/pt-vfork.S | 1 + sysdeps/unix/sysv/linux/nds32/syscall.c | 39 +++ sysdeps/unix/sysv/linux/nds32/syscalls.list | 2 + sysdeps/unix/sysv/linux/nds32/sysdep.c | 30 +++ sysdeps/unix/sysv/linux/nds32/sysdep.h | 337 +++++++++++++++++++++++++ 7 files changed, 506 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/nds32/clone.S create mode 100644 sysdeps/unix/sysv/linux/nds32/profil-counter.h create mode 100644 sysdeps/unix/sysv/linux/nds32/pt-vfork.S create mode 100644 sysdeps/unix/sysv/linux/nds32/syscall.c create mode 100644 sysdeps/unix/sysv/linux/nds32/syscalls.list create mode 100644 sysdeps/unix/sysv/linux/nds32/sysdep.c create mode 100644 sysdeps/unix/sysv/linux/nds32/sysdep.h