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* sysdeps/arm/dl-machine.h (elf_machine_dynamic): Rewrite to load

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_GLOBAL_OFFSET_TABLE_ explicitly.
This commit is contained in:
Daniel Jacobowitz 2006-05-30 15:18:49 +00:00
parent 023a0de155
commit e8256668f3
2 changed files with 15 additions and 4 deletions
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5
ChangeLog.arm
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@ -1,3 +1,8 @@
2006-05-30 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/arm/dl-machine.h (elf_machine_dynamic): Rewrite to load
_GLOBAL_OFFSET_TABLE_ explicitly.
2006-05-30 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/arm/kernel-features.h: Add conditionals

14
sysdeps/arm/dl-machine.h
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@ -46,13 +46,19 @@ elf_machine_matches_host (const Elf32_Ehdr *ehdr)
/* Return the link-time address of _DYNAMIC. Conveniently, this is the
first element of the GOT. This must be inlined in a function which
uses global data. */
first element of the GOT. We used to use the PIC register to do this
without a constant pool reference, but GCC 4.2 will use a pseudo-register
for the PIC base, so it may not be in r10. */
static inline Elf32_Addr __attribute__ ((unused))
elf_machine_dynamic (void)
{
register Elf32_Addr *got asm ("r10");
return *got;
Elf32_Addr dynamic;
asm ("ldr %0, 2f\n"
"1: add %0, pc, %0\n"
"b 3f\n"
"2: .word _GLOBAL_OFFSET_TABLE_ - (1b+8)\n"
"3:" : "=r" (dynamic));
return dynamic;
}