diff options
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/x86_64/sysdep.h')
| -rw-r--r-- | libc/sysdeps/unix/sysv/linux/x86_64/sysdep.h | 39 |
1 files changed, 4 insertions, 35 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/libc/sysdeps/unix/sysv/linux/x86_64/sysdep.h index 2b9ea85d8..64362300a 100644 --- a/libc/sysdeps/unix/sysv/linux/x86_64/sysdep.h +++ b/libc/sysdeps/unix/sysv/linux/x86_64/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001-2005, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2001-2005, 2007, 2011 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 @@ -124,7 +124,7 @@ movl %edx, (%rcx); \ orq $-1, %rax; \ jmp L(pseudo_end); -# elif USE___THREAD +# else # ifndef NOT_IN_libc # define SYSCALL_ERROR_ERRNO __libc_errno # else @@ -138,34 +138,6 @@ movl %edx, %fs:(%rcx); \ orq $-1, %rax; \ jmp L(pseudo_end); -# elif defined _LIBC_REENTRANT -/* Store (- %rax) into errno through the GOT. - Note that errno occupies only 4 bytes. */ -# define SYSCALL_ERROR_HANDLER \ -0: \ - xorl %edx, %edx; \ - subq %rax, %rdx; \ - pushq %rdx; \ - cfi_adjust_cfa_offset(8); \ - PUSH_ERRNO_LOCATION_RETURN; \ - call BP_SYM (__errno_location)@PLT; \ - POP_ERRNO_LOCATION_RETURN; \ - popq %rdx; \ - cfi_adjust_cfa_offset(-8); \ - movl %edx, (%rax); \ - orq $-1, %rax; \ - jmp L(pseudo_end); - -/* A quick note: it is assumed that the call to `__errno_location' does - not modify the stack! */ -# else /* Not _LIBC_REENTRANT. */ -# define SYSCALL_ERROR_HANDLER \ -0:movq errno@GOTPCREL(%RIP), %rcx; \ - xorl %edx, %edx; \ - subq %rax, %rdx; \ - movl %edx, (%rcx); \ - orq $-1, %rax; \ - jmp L(pseudo_end); # endif /* PIC */ /* The Linux/x86-64 kernel expects the system call parameters in @@ -279,8 +251,8 @@ if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \ { \ iserr: \ - __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \ - sc_ret = -1L; \ + __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \ + sc_ret = -1L; \ } \ out: \ sc_ret; \ @@ -304,9 +276,6 @@ v_ret; \ }) -/* List of system calls which are supported as vsyscalls. */ -# define HAVE_CLOCK_GETTIME_VSYSCALL 1 - # else # define INLINE_VSYSCALL(name, nr, args...) \ INLINE_SYSCALL (name, nr, ##args) |