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| author | Rich Felker <dalias@aerifal.cx> | 2020-08-30 21:37:12 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2020-08-30 21:37:12 -0400 |
| commit | 0b0640219338b80cf47026d1970b5503414ed7f3 (patch) | |
| tree | a5abc13e40bcd817f2e280b7efe038ee5d1fd5b1 /src/thread | |
| parent | cf27184d00c1588eccac71a3bc89c9798e60bbd9 (diff) | |
| download | musl-0b0640219338b80cf47026d1970b5503414ed7f3.tar.gz musl-0b0640219338b80cf47026d1970b5503414ed7f3.tar.xz musl-0b0640219338b80cf47026d1970b5503414ed7f3.zip | |
fix i386 __set_thread_area fallback
this code is only needed for pre-2.6 kernels, which are not actually supported anyway, and was never tested. the fallback path using SYS_modify_ldt failed to clear the upper bits of %eax (all ones due to SYS_set_thread_area's return value being an error) before modifying %al to attempt a new syscall.
Diffstat (limited to 'src/thread')
| -rw-r--r-- | src/thread/i386/__set_thread_area.s | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/thread/i386/__set_thread_area.s b/src/thread/i386/__set_thread_area.s index c2c21dd5..aa6852be 100644 --- a/src/thread/i386/__set_thread_area.s +++ b/src/thread/i386/__set_thread_area.s @@ -28,6 +28,7 @@ __set_thread_area: ret 2: mov %ebx,%ecx + xor %eax,%eax xor %ebx,%ebx xor %edx,%edx mov %ebx,(%esp) |