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| author | Ulrich Drepper <drepper@redhat.com> | 2009-08-04 11:03:46 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-08-04 11:03:46 -0700 |
| commit | 421665c40ae002f74130eb4e0b19cb22d97860cf (patch) | |
| tree | 78e155aac7fd869030ddad548afbf9dfaed6df0c /nptl/ChangeLog | |
| parent | 4a1377672ca5472fac9096b4da72d26226b4aa59 (diff) | |
| download | glibc-421665c40ae002f74130eb4e0b19cb22d97860cf.tar.gz glibc-421665c40ae002f74130eb4e0b19cb22d97860cf.tar.xz glibc-421665c40ae002f74130eb4e0b19cb22d97860cf.zip | |
Optimize x86-64 syscall cancellation handling.
The syscall wrappers had to save and restore the syscall parameter values and return value when calling the functions to enable/disable cancellation were called. Not anymore. The called functions are special and don't modify any unexpected registers.
Diffstat (limited to 'nptl/ChangeLog')
| -rw-r--r-- | nptl/ChangeLog | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 3ebe841452..3a74b5fecd 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,15 @@ +2009-08-04 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/unix/sysv/linux/x86_64/cancellation.S: New file. + * sysdeps/unix/sysv/linux/x86_64/libc-cancellation.S: New file. + * sysdeps/unix/sysv/linux/x86_64/librt-cancellation.S: New file. + * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (PSEUDO): Optimize + since we can assume the special __*_{en,dis}able_asynccancel + functions. + (PUSHARGS_*, POPARGS_*, SAVESTK_*, RESTSTK_*): Removed. + * sysdeps/x86_64/tcb-offsets.sym: Add cancellation-related bits + and PTHREAD_CANCELED. + 2009-07-31 Ulrich Drepper <drepper@redhat.com> * descr.h: Better definition of *_BITMASK macros for cancellation. |