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| author | Natanael Copa <ncopa@alpinelinux.org> | 2012-07-05 07:40:51 +0000 |
|---|---|---|
| committer | Natanael Copa <ncopa@alpinelinux.org> | 2012-07-05 07:40:51 +0000 |
| commit | 049753c09143a597a6b1cf15380d9a4271120fb7 (patch) | |
| tree | aaf3b36e81efb073d9409822d4cccfa7926bc079 /main/libc0.9.32/posix_fallocate-fix.patch | |
| parent | ef170b15f32a55a84dd1bd725e440f918c5080c0 (diff) | |
| download | aports-049753c09143a597a6b1cf15380d9a4271120fb7.tar.bz2 aports-049753c09143a597a6b1cf15380d9a4271120fb7.tar.xz | |
main/libc0.9.32: fix/workaround posix_fallocate for x86
Might be a gcc bug, but the generated assembly code was broke.
ebp was supposed to be set to zero but it was not.
We work around it by allowing use of immedate values as the 6th syscall
arg. Then gcc don't need to use a memory reference.
Diffstat (limited to 'main/libc0.9.32/posix_fallocate-fix.patch')
| -rw-r--r-- | main/libc0.9.32/posix_fallocate-fix.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/main/libc0.9.32/posix_fallocate-fix.patch b/main/libc0.9.32/posix_fallocate-fix.patch new file mode 100644 index 0000000000..3ff28a49e2 --- /dev/null +++ b/main/libc0.9.32/posix_fallocate-fix.patch @@ -0,0 +1,29 @@ +--- ./libc/sysdeps/linux/common/posix_fallocate.c.orig ++++ ./libc/sysdeps/linux/common/posix_fallocate.c +@@ -22,11 +22,10 @@ + uint32_t off_low = offset; + uint32_t len_low = len; + /* may assert that these >>31 are 0 */ +- uint32_t zero = 0; + INTERNAL_SYSCALL_DECL(err); + ret = (int) (INTERNAL_SYSCALL(fallocate, err, 6, fd, 0, +- __LONG_LONG_PAIR (zero, off_low), +- __LONG_LONG_PAIR (zero, len_low))); ++ __LONG_LONG_PAIR (0, off_low), ++ __LONG_LONG_PAIR (0, len_low))); + # elif __WORDSIZE == 64 + INTERNAL_SYSCALL_DECL(err); + ret = (int) (INTERNAL_SYSCALL(fallocate, err, 4, fd, 0, offset, len)); +diff --git a/libc/sysdeps/linux/i386/bits/syscalls.h b/libc/sysdeps/linux/i386/bits/syscalls.h +index 9fb4f35..566b5ac 100644 +--- a/libc/sysdeps/linux/i386/bits/syscalls.h ++++ b/libc/sysdeps/linux/i386/bits/syscalls.h +@@ -136,7 +136,7 @@ __asm__ ( + #define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \ + , "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5) + #define ASMFMT_6(arg1, arg2, arg3, arg4, arg5, arg6) \ +- , "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5), "m" (arg6) ++ , "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5), "g" (arg6) + + #else /* !PIC */ + |