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| author | Daniel Jacobowitz <dan@codesourcery.com> | 2009-09-25 18:48:39 -0400 |
|---|---|---|
| committer | Austin Foxley <austinf@cetoncorp.com> | 2009-10-17 13:15:37 -0700 |
| commit | e8053b24253b218865eb631130c3fee073949653 (patch) | |
| tree | e7d3ed474c3fe55b91de9d45c734a72e8a62a61a /libc | |
| parent | 011e2470700cb5eb65c226bdb0640993fd3e7c6d (diff) | |
| download | uClibc-alpine-e8053b24253b218865eb631130c3fee073949653.tar.bz2 uClibc-alpine-e8053b24253b218865eb631130c3fee073949653.tar.xz | |
mips: do not save variables in "hi" or "lo" across system calls
The kernel does not save these registers across system calls. GCC 4.4
has gotten more aggressive about using them for temporary variables, so
this shows up as intermittent crashes if you use a recent compiler.
Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/sysdeps/linux/mips/bits/syscalls.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/mips/bits/syscalls.h b/libc/sysdeps/linux/mips/bits/syscalls.h index 363991368..28b0f91e9 100644 --- a/libc/sysdeps/linux/mips/bits/syscalls.h +++ b/libc/sysdeps/linux/mips/bits/syscalls.h @@ -261,7 +261,7 @@ }) #define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ - "$14", "$15", "$24", "$25", "memory" + "$14", "$15", "$24", "$25", "hi", "lo", "memory" #else /* N32 || N64 */ @@ -318,7 +318,7 @@ }) #define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \ - "$14", "$15", "$24", "$25", "memory" + "$14", "$15", "$24", "$25", "hi", "lo", "memory" #endif |