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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2017-07-20 20:30:28 +0200
committerWaldemar Brodkorb <wbx@openadk.org>2017-07-28 18:56:40 +0200
commitc876d8a2cd0e7e1ac585abfbe0067a26cd7ea932 (patch)
treeadc420c827ef33b0e88fa6c5666c3cd639d0e0e8 /libpthread/nptl/sysdeps/unix/sysv/linux/powerpc
parentdcbff4072b6b3e79d768e50c2d58ccc8e307b1bd (diff)
nptl: remove asm from sysdep-cancel.h
Similar to a changeset planned in GNU C library remove any assembly code from sysdep-cancel.h. This allows to port to new architectures in a simpler way.
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/powerpc')
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h84
1 files changed, 3 insertions, 81 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h
index c163dcdba..2247801b2 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h
@@ -1,6 +1,5 @@
/* Cancellable system call stubs. Linux/PowerPC version.
Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
@@ -25,94 +24,17 @@
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args) \
- .section ".text"; \
- ENTRY (name) \
- SINGLE_THREAD_P; \
- bne- .Lpseudo_cancel; \
- .type __##syscall_name##_nocancel,@function; \
- .globl __##syscall_name##_nocancel; \
- __##syscall_name##_nocancel: \
- DO_CALL (SYS_ify (syscall_name)); \
- PSEUDO_RET; \
- .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
- .Lpseudo_cancel: \
- stwu 1,-48(1); \
- cfi_adjust_cfa_offset (48); \
- mflr 9; \
- stw 9,52(1); \
- cfi_offset (lr, 4); \
- DOCARGS_##args; /* save syscall args around CENABLE. */ \
- CENABLE; \
- stw 3,16(1); /* store CENABLE return value (MASK). */ \
- UNDOCARGS_##args; /* restore syscall args. */ \
- DO_CALL (SYS_ify (syscall_name)); \
- mfcr 0; /* save CR/R3 around CDISABLE. */ \
- stw 3,8(1); \
- stw 0,12(1); \
- lwz 3,16(1); /* pass MASK to CDISABLE. */ \
- CDISABLE; \
- lwz 4,52(1); \
- lwz 0,12(1); /* restore CR/R3. */ \
- lwz 3,8(1); \
- mtlr 4; \
- mtcr 0; \
- addi 1,1,48;
-
-# define DOCARGS_0
-# define UNDOCARGS_0
-
-# define DOCARGS_1 stw 3,20(1); DOCARGS_0
-# define UNDOCARGS_1 lwz 3,20(1); UNDOCARGS_0
-
-# define DOCARGS_2 stw 4,24(1); DOCARGS_1
-# define UNDOCARGS_2 lwz 4,24(1); UNDOCARGS_1
-
-# define DOCARGS_3 stw 5,28(1); DOCARGS_2
-# define UNDOCARGS_3 lwz 5,28(1); UNDOCARGS_2
-
-# define DOCARGS_4 stw 6,32(1); DOCARGS_3
-# define UNDOCARGS_4 lwz 6,32(1); UNDOCARGS_3
-
-# define DOCARGS_5 stw 7,36(1); DOCARGS_4
-# define UNDOCARGS_5 lwz 7,36(1); UNDOCARGS_4
-
-# define DOCARGS_6 stw 8,40(1); DOCARGS_5
-# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5
-
-# ifdef IS_IN_libpthread
-# define CENABLE bl __pthread_enable_asynccancel@local
-# define CDISABLE bl __pthread_disable_asynccancel@local
-# elif !defined NOT_IN_libc
-# define CENABLE bl __libc_enable_asynccancel@local
-# define CDISABLE bl __libc_disable_asynccancel@local
-# elif defined IS_IN_librt
-# define CENABLE bl __librt_enable_asynccancel@local
-# define CDISABLE bl __librt_disable_asynccancel@local
-# else
-# error Unsupported library
-# endif
-
-# ifndef __ASSEMBLER__
-# define SINGLE_THREAD_P \
+# define SINGLE_THREAD_P \
__builtin_expect (THREAD_GETMEM (THREAD_SELF, \
header.multiple_threads) == 0, 1)
-# else
-# define SINGLE_THREAD_P \
- lwz 10,MULTIPLE_THREADS_OFFSET(2); \
- cmpwi 10,0
-# endif
-#elif !defined __ASSEMBLER__
+#else
# define SINGLE_THREAD_P (1)
# define NO_CANCELLATION 1
#endif
-#ifndef __ASSEMBLER__
-# define RTLD_SINGLE_THREAD_P \
+#define RTLD_SINGLE_THREAD_P \
__builtin_expect (THREAD_GETMEM (THREAD_SELF, \
header.multiple_threads) == 0, 1)
-#endif