diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2017-01-22 10:24:51 +0100 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2017-01-28 10:31:19 +0100 |
| commit | bddde5860ffb8a78587854cc8e3e914bd69269ca (patch) | |
| tree | d37c90a9ca983fb8be614844343ba2941927f88a /libc/sysdeps/linux/powerpc | |
| parent | 30adfbeb8843c28869cc6ee33d7c556721cb241a (diff) | |
remove PID caching
Follow GNU C Library from c579f48edba88380635ab98cb612030e3ed8691e
and remove the PID caching. These simplifies the architecture specific
assembly code.
The run of the test suite found no regressions, it even solves
some of the test failures for x86/x86_64/sparc.
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Acked-by: Matthew Fortune <Matthew.Fortune@imgtec.com>
Acked-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Diffstat (limited to 'libc/sysdeps/linux/powerpc')
| -rw-r--r-- | libc/sysdeps/linux/powerpc/Makefile.arch | 4 | ||||
| -rw-r--r-- | libc/sysdeps/linux/powerpc/clone.S | 30 |
2 files changed, 5 insertions, 29 deletions
diff --git a/libc/sysdeps/linux/powerpc/Makefile.arch b/libc/sysdeps/linux/powerpc/Makefile.arch index f0144e7b9..9dc27c4a5 100644 --- a/libc/sysdeps/linux/powerpc/Makefile.arch +++ b/libc/sysdeps/linux/powerpc/Makefile.arch @@ -10,9 +10,7 @@ CSRC-$(if $(UCLIBC_HAS_LONG_DOUBLE_MATH),,y) += copysignl.c SSRC-y := \ __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S brk.S \ - __uClibc_syscall.S syscall.S - -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += clone.S vfork.S + __uClibc_syscall.S syscall.S clone.S vfork.S ifeq ($(CONFIG_E500),y) ARCH_HEADERS := fenv.h diff --git a/libc/sysdeps/linux/powerpc/clone.S b/libc/sysdeps/linux/powerpc/clone.S index 8efbbda1a..45319d00d 100644 --- a/libc/sysdeps/linux/powerpc/clone.S +++ b/libc/sysdeps/linux/powerpc/clone.S @@ -47,14 +47,10 @@ __clone: /* Set up stack frame for parent. */ stwu r1,-32(r1) cfi_adjust_cfa_offset (32) -#ifdef RESET_PID - stmw r28,16(r1) -#else -# ifndef __ASSUME_FIXED_CLONE_SYSCALL +#ifndef __ASSUME_FIXED_CLONE_SYSCALL stmw r29,16(r1) -# else +#else stmw r30,16(r1) -# endif #endif /* Set up stack frame for child. */ @@ -67,9 +63,6 @@ __clone: #ifndef __ASSUME_FIXED_CLONE_SYSCALL mr r29,r4 /* Stack pointer in r29. */ #endif -#ifdef RESET_PID - mr r28,r5 -#endif mr r31,r6 /* Argument in r31. */ /* 'flags' argument is first parameter to clone syscall. (The other @@ -101,17 +94,6 @@ __clone: mr r1,r29 #endif -#ifdef RESET_PID - andis. r0,r28,CLONE_THREAD>>16 - bne+ r0,.Loldpid - andi. r0,r28,CLONE_VM - li r3,-1 - bne- r0,.Lnomoregetpid -.Lnomoregetpid: - stw r3,TID(r2) - stw r3,PID(r2) -.Loldpid: -#endif /* Call procedure. */ mtctr r30 mr r3,r31 @@ -121,14 +103,10 @@ __clone: .Lparent: /* Parent. Restore registers & return. */ -#ifdef RESET_PID - lmw r28,16(r1) -#else -# ifndef __ASSUME_FIXED_CLONE_SYSCALL +#ifndef __ASSUME_FIXED_CLONE_SYSCALL lmw r29,16(r1) -# else +#else lmw r30,16(r1) -# endif #endif addi r1,r1,32 bnslr+ |