diff options
Diffstat (limited to 'sysdeps/unix/arm/sysdep.S')
| -rw-r--r-- | sysdeps/unix/arm/sysdep.S | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/sysdeps/unix/arm/sysdep.S b/sysdeps/unix/arm/sysdep.S index d59500e47a..c1da5255b0 100644 --- a/sysdeps/unix/arm/sysdep.S +++ b/sysdeps/unix/arm/sysdep.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc. +/* Copyright (C) 1991,92,93,94,95,96,97,98 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 @@ -23,8 +23,6 @@ .globl C_SYMBOL_NAME(errno) .globl syscall_error -_errno_loc: .long C_SYMBOL_NAME(errno) - #undef syscall_error #ifdef NO_UNDERSCORES __syscall_error: @@ -38,12 +36,44 @@ syscall_error: cmp r0, $EWOULDBLOCK_sys /* Is it the old EWOULDBLOCK? */ moveq r0, $EAGAIN /* Yes; translate it to EAGAIN. */ #endif + #ifndef PIC ldr r1, _errno_loc str r0, [r1] +#ifdef _LIBC_REENTRANT + stmdb sp!, {r0, lr} + /* put another copy of r0 at a specific errno location */ + bl __errno_location + ldmia sp!, {r1, lr} + str r1, [r0] +#endif +#else + stmdb sp!,{r10, lr} + @ we have to establish our PIC register + ldr r10, 1f + add r10, pc, r10 +0: ldr r1, 2f + ldr r1, [r10, r1] + @ store a copy in _errno_loc + str r0, [r1] +#ifdef _LIBC_REENTRANT + @ and another copy in thread copy of _errno_loc + mov r10, r0 + bl __errno_location(PLT) + str r10, [r0] +#endif + ldmia sp!, {r10, lr} + b 4f +1: .word _GLOBAL_OFFSET_TABLE_ - 0b - 4 +2: .word C_SYMBOL_NAME(errno)(GOT) +4: #endif mvn r0, $0 RETINSTR(mov, pc, r14) +#ifndef PIC +_errno_loc: .long C_SYMBOL_NAME(errno) +#endif + #undef __syscall_error END (__syscall_error) |