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.

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