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| author | Ulrich Drepper <drepper@redhat.com> | 2003-07-12 01:29:23 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-07-12 01:29:23 +0000 |
| commit | 4a17085f1589c5451d031995534e00e763364fb0 (patch) | |
| tree | 7c4d50a5c79d4d8a6adbe7f4729929bd20daaff6 /nptl/sysdeps/unix/sysv/linux/sh/sem_wait.S | |
| parent | 6080ecdf3cfc34b45bdfc7669f03359adc77d959 (diff) | |
| download | glibc-4a17085f1589c5451d031995534e00e763364fb0.tar.gz glibc-4a17085f1589c5451d031995534e00e763364fb0.tar.xz glibc-4a17085f1589c5451d031995534e00e763364fb0.zip | |
Update.
2003-07-12 Kaz Kojima <kkojima@rr.iij4u.or.jp> * sysdeps/unix/sysv/linux/sh/socket.S: Save and restore the PR register across CENABLE and CDISABLE.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/sem_wait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/sem_wait.S | 58 |
1 files changed, 55 insertions, 3 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/sem_wait.S b/nptl/sysdeps/unix/sysv/linux/sh/sem_wait.S index 49b76c6d8c..8a55394c29 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/sem_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/sem_wait.S @@ -19,6 +19,7 @@ #include <sysdep.h> #include <shlib-compat.h> #include <pthread-errnos.h> +#include <tcb-offsets.h> #include "lowlevel-atomic.h" @@ -33,8 +34,18 @@ .type __new_sem_wait,@function .align 5 __new_sem_wait: - mov.l r12, @-r15 + /* First check for cancellation. */ + stc gbr, r0 + mov.w .Lchand, r1 + mov.l @(r0,r1), r0 + mov #0xf9, r1 + and r1, r0 + cmp/eq #8, r0 + bt 5f + mov.l r8, @-r15 + mov.l r10, @-r15 + mov.l r12, @-r15 sts.l pr, @-r15 mov r4, r8 3: @@ -48,12 +59,19 @@ __new_sem_wait: CMPXCHG (r4, @r8, r3, r2) bf 2b lds.l @r15+, pr - mov.l @r15+, r8 mov.l @r15+, r12 + mov.l @r15+, r10 + mov.l @r15+, r8 rts mov #0, r0 1: + mov.l .Lenable0, r1 + bsrf r1 + nop +.Lenable0b: + mov r0, r10 + mov r8, r4 mov #FUTEX_WAIT, r5 mov #0, r6 @@ -63,6 +81,13 @@ __new_sem_wait: trapa #0x14 SYSCALL_INST_PAD + mov.l .Ldisable0, r1 + mov r10, r4 + bsrf r1 + mov r0, r10 +.Ldisable0b: + mov r10, r0 + tst r0, r0 bt 3b cmp/eq #-EWOULDBLOCK, r0 @@ -88,11 +113,32 @@ __new_sem_wait: mov.l r8, @r0 #endif lds.l @r15+, pr - mov.l @r15+, r8 mov.l @r15+, r12 + mov.l @r15+, r10 + mov.l @r15+, r8 rts mov #-1, r0 +5: + /* Canceled. */ + stc gbr, r0 + mov.w .Lresult, r1 + mov #-1, r2 + mov.l r2, @(r0,r1) + mov.w .Lchand, r0 + or.b #0x10, @(r0,gbr) + stc gbr, r0 + mov.w .Lclbuf, r1 + mov.l .Lunwind, r2 + jmp @r2 + mov.l @(r0,r1), r4 + +.Lchand: + .word CANCELHANDLING - TLS_PRE_TCB_SIZE +.Lresult: + .word RESULT - TLS_PRE_TCB_SIZE +.Lclbuf: + .word CLEANUP_JMP_BUF - TLS_PRE_TCB_SIZE .align 2 .Lgot0: .long _GLOBAL_OFFSET_TABLE_ @@ -103,5 +149,11 @@ __new_sem_wait: .Lerrloc0: .long __errno_location@PLT-(.Lerrloc0b+2-.) #endif +.Lenable0: + .long __pthread_enable_asynccancel-.Lenable0b +.Ldisable0: + .long __pthread_disable_asynccancel-.Ldisable0b +.Lunwind: + .long __pthread_unwind .size __new_sem_wait,.-__new_sem_wait versioned_symbol(libpthread, __new_sem_wait, sem_wait, GLIBC_2_1) |