aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/arm
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/arm')
-rw-r--r--sysdeps/unix/arm/brk.S19
-rw-r--r--sysdeps/unix/arm/sysdep.S36
2 files changed, 49 insertions, 6 deletions
diff --git a/sysdeps/unix/arm/brk.S b/sysdeps/unix/arm/brk.S
index 0150bcde80..b3924a3d6d 100644
--- a/sysdeps/unix/arm/brk.S
+++ b/sysdeps/unix/arm/brk.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1993, 1995, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 95, 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
@@ -33,11 +33,24 @@ C_LABEL(__curbrk)
.text
SYSCALL__ (brk, 1)
+#ifdef PIC
+ ldr r1, 1f
+ add r1, r1, pc
+2: ldr r2, _cb_addr
+ add r1, r1, r2
+#else
ldr r1, _cb_addr
+#endif
str r0, [r1]
mov r0, $0
RETINSTR(mov, pc, r14)
-_cb_addr: .long C_SYMBOL_NAME(__curbrk)
-
+#ifdef PIC
+1: .long _GLOBAL_OFFSET_TABLE_ - 2b - 4
+_cb_addr:
+ .long C_SYMBOL_NAME(__curbrk)(GOTOFF)
+#else
+_cb_addr:
+ .long C_SYMBOL_NAME(__curbrk)
+#endif
weak_alias (__brk, brk)
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)