diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/sysdep.h | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h index c77bbbbf86..96470a19b9 100644 --- a/sysdeps/unix/sysv/linux/i386/sysdep.h +++ b/sysdeps/unix/sysv/linux/i386/sysdep.h @@ -45,21 +45,44 @@ Cambridge, MA 02139, USA. */ testl %eax, %eax; \ jl syscall_error; -#ifndef PIC +#ifndef PIC #define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */ #else /* Store (- %eax) into errno through the GOT. */ +#ifdef _LIBC_REENTRANT #define SYSCALL_ERROR_HANDLER \ + .type syscall_error,@function; \ +syscall_error: \ + pushl %ebx; \ + call 0f; \ +0:popl %ebx; \ + xorl %edx, %edx; \ + addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ebx; \ + subl %eax, %edx; \ + movl errno@GOT(%ebx), %ecx; \ + movl %edx, (%ecx); \ + pushl %edx; \ + call __errno_location@PLT; \ + popl %ecx; \ + popl %ebx; \ + movl %ecx, (%eax); \ + movl $-1, %eax; \ + ret; +#else +#define SYSCALL_ERROR_HANDLER \ + .type syscall_error,@function; \ syscall_error: \ call 0f; \ 0:popl %ecx; \ - negl %eax; \ + xorl %edx, %edx; \ addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ecx; \ + subl %eax, %edx; \ movl errno@GOT(%ecx), %ecx; \ - movl %eax, (%ecx); \ + movl %edx, (%ecx); \ movl $-1, %eax; \ ret; -#endif +#endif /* _LIBC_REENTRANT */ +#endif /* PIC */ /* Linux takes system call arguments in registers: |