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| author | Ulrich Drepper <drepper@redhat.com> | 2004-12-07 20:34:18 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-12-07 20:34:18 +0000 |
| commit | 484cc8018b9e27a8fd90f15eaeee132a430131d8 (patch) | |
| tree | b33d11a83982fbc4658d97954cdb6d857fd776f5 /sysdeps/unix/sysv/linux | |
| parent | 2da9a6a1a7e08651875ac0026523ab6747caef2e (diff) | |
| download | glibc-484cc8018b9e27a8fd90f15eaeee132a430131d8.tar.gz glibc-484cc8018b9e27a8fd90f15eaeee132a430131d8.tar.xz glibc-484cc8018b9e27a8fd90f15eaeee132a430131d8.zip | |
Update.
2004-12-07 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Add support for NPTL where the PID is stored at userlevel and needs to be reset when CLONE_THREAD is not used. Restore gp before calling _exit.
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/clone2.S | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/clone2.S b/sysdeps/unix/sysv/linux/ia64/clone2.S index af5e009be4..69c9e05044 100644 --- a/sysdeps/unix/sysv/linux/ia64/clone2.S +++ b/sysdeps/unix/sysv/linux/ia64/clone2.S @@ -30,7 +30,7 @@ ENTRY(__clone2) .prologue - alloc r2=ar.pfs,8,0,6,0 + alloc r2=ar.pfs,8,1,6,0 cmp.eq p6,p0=0,in0 mov r8=EINVAL mov out0=in3 /* Flags are first syscall argument. */ @@ -63,15 +63,34 @@ ENTRY(__clone2) cmp.eq CHILD,PARENT=0,r8 /* Are we the child? */ (p6) br.cond.spnt.many __syscall_error ;; -(CHILD) ld8 out1=[in0],8 /* Retrieve code pointer. */ -(CHILD) mov out0=in4 /* Pass proper argument to fn */ +(CHILD) mov loc0=gp (PARENT) ret ;; +#ifdef RESET_PID + tbit.nz p6,p0=in3,16 /* CLONE_THREAD */ + tbit.z p7,p10=in3,8 /* CLONE_VM */ +(p6) br.cond.dptk 1f + ;; + mov r15=SYS_ify (getpid) +(p10) addl r8=-1,r0 +(p7) break __BREAK_SYSCALL + ;; + add r9=PID,r13 + add r10=TID,r13 + ;; + st4 [r9]=r8 + st4 [r10]=r8 + ;; +#endif +1: ld8 out1=[in0],8 /* Retrieve code pointer. */ + mov out0=in4 /* Pass proper argument to fn */ + ;; ld8 gp=[in0] /* Load function gp. */ mov b6=out1 br.call.dptk.many rp=b6 /* Call fn(arg) in the child */ ;; mov out0=r8 /* Argument to _exit */ + mov gp=loc0 .globl HIDDEN_JUMPTARGET(_exit) br.call.dpnt.many rp=HIDDEN_JUMPTARGET(_exit) /* call _exit with result from fn. */ |