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.

16 files changed, 52 insertions, 1891 deletions

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h
index 0942e819e..a6c98b6f8 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h
@@ -22,102 +22,23 @@
 
 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
 
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)				\
-	.section ".text";						\
-ENTRY (__##syscall_name##_nocancel);					\
-.Lpseudo_nocancel:							\
-	DO_CALL (syscall_name, args);					\
-.Lpseudo_finish:							\
-	cmn	x0, 4095;						\
-	b.cs	.Lsyscall_error;					\
-	.subsection 2;							\
-	.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
-ENTRY (name);								\
-	SINGLE_THREAD_P(16);						\
-	cbz	w16, .Lpseudo_nocancel;					\
-	/* Setup common stack frame no matter the number of args.	\
-	   Also save the first arg, since it's basically free.  */	\
-	stp	x30, x0, [sp, -64]!;					\
-	cfi_adjust_cfa_offset (64);					\
-	cfi_rel_offset (x30, 0);					\
-	DOCARGS_##args;		/* save syscall args around CENABLE.  */ \
-	CENABLE;							\
-	mov	x16, x0;	/* save mask around syscall.  */	\
-	UNDOCARGS_##args;	/* restore syscall args.  */		\
-	DO_CALL (syscall_name, args);					\
-	str	x0, [sp, 8];	/* save result around CDISABLE.  */	\
-	mov	x0, x16;	/* restore mask for CDISABLE.  */	\
-	CDISABLE;							\
-	/* Break down the stack frame, restoring result at once.  */	\
-	ldp	x30, x0, [sp], 64;					\
-	cfi_adjust_cfa_offset (-64);					\
-	cfi_restore (x30);						\
-	b	.Lpseudo_finish;					\
-	cfi_endproc;							\
-	.size	name, .-name;						\
-	.previous
-
-# undef PSEUDO_END
-# define PSEUDO_END(name)						\
-	SYSCALL_ERROR_HANDLER;						\
-	cfi_endproc
-
-# define DOCARGS_0
-# define DOCARGS_1
-# define DOCARGS_2	str x1, [sp, 16]
-# define DOCARGS_3	stp x1, x2, [sp, 16]
-# define DOCARGS_4	DOCARGS_3; str x3, [sp, 32]
-# define DOCARGS_5	DOCARGS_3; stp x3, x4, [sp, 32]
-# define DOCARGS_6	DOCARGS_5; str x5, [sp, 48]
-
-# define UNDOCARGS_0
-# define UNDOCARGS_1	ldr x0, [sp, 8]
-# define UNDOCARGS_2	ldp x0, x1, [sp, 8]
-# define UNDOCARGS_3	UNDOCARGS_1; ldp x1, x2, [sp, 16]
-# define UNDOCARGS_4	UNDOCARGS_2; ldp x2, x3, [sp, 24]
-# define UNDOCARGS_5	UNDOCARGS_3; ldp x3, x4, [sp, 32]
-# define UNDOCARGS_6	UNDOCARGS_4; ldp x4, x5, [sp, 40]
-
 # if defined IS_IN_libpthread
-#  define CENABLE	bl __pthread_enable_asynccancel
-#  define CDISABLE	bl __pthread_disable_asynccancel
 #  define __local_multiple_threads __pthread_multiple_threads
 # elif !defined NOT_IN_libc
-#  define CENABLE	bl __libc_enable_asynccancel
-#  define CDISABLE	bl __libc_disable_asynccancel
 #  define __local_multiple_threads __libc_multiple_threads
-# elif defined IS_IN_librt
-#  define CENABLE	bl __librt_enable_asynccancel
-#  define CDISABLE	bl __librt_disable_asynccancel
-# else
-#  error Unsupported library
 # endif
 
 # if defined IS_IN_libpthread || !defined NOT_IN_libc
-#  ifndef __ASSEMBLER__
 extern int __local_multiple_threads attribute_hidden;
-#   define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
-#  else
-#   define SINGLE_THREAD_P(R)						\
-	adrp	x##R, __local_multiple_threads;				\
-	ldr	w##R, [x##R, :lo12:__local_multiple_threads]
-#  endif
+#  define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
 # else
 /*  There is no __local_multiple_threads for librt, so use the TCB.  */
-#  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(R)						\
-	mrs     x##R, tpidr_el0;					\
-	sub	x##R, x##R, PTHREAD_SIZEOF;				\
-	ldr	w##R, [x##R, PTHREAD_MULTIPLE_THREADS_OFFSET]
-#  endif
 # endif
 
-#elif !defined __ASSEMBLER__
+#else
 
 /* For rtld, et cetera.  */
 # define SINGLE_THREAD_P 1
@@ -125,8 +46,6 @@ extern int __local_multiple_threads attribute_hidden;
 
 #endif
 
-#ifndef __ASSEMBLER__
 # define RTLD_SINGLE_THREAD_P \
   __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
 				   header.multiple_threads) == 0, 1)
-#endif
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h
index 51f1bd42a..4f60558bf 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h
@@ -23,143 +23,20 @@
 
 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
 
-# ifdef PROF
-#  define PSEUDO_PROF				\
-	.set noat;				\
-	lda	AT, _mcount;			\
-	jsr	AT, (AT), _mcount;		\
-	.set at
-# else
-#  define PSEUDO_PROF
-# endif
-
-/* ??? Assumes that nothing comes between PSEUDO and PSEUDO_END
-   besides "ret".  */
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)			\
-	.globl name;						\
-	.align 4;						\
-	.type name, @function;					\
-	.usepv name, std;					\
-	cfi_startproc;						\
-__LABEL(name)							\
-	ldgp	gp, 0(pv);					\
-	PSEUDO_PROF;						\
-	PSEUDO_PREPARE_ARGS					\
-	SINGLE_THREAD_P(t0);					\
-	bne	t0, $pseudo_cancel;				\
-	lda	v0, SYS_ify(syscall_name);			\
-	call_pal PAL_callsys;					\
-	bne	a3, SYSCALL_ERROR_LABEL;			\
-__LABEL($pseudo_ret)						\
-	.subsection 2;						\
-	cfi_startproc;						\
-__LABEL($pseudo_cancel)						\
-	subq	sp, 64, sp;					\
-	cfi_def_cfa_offset(64);					\
-	stq	ra, 0(sp);					\
-	cfi_offset(ra, -64);					\
-	SAVE_ARGS_##args;					\
-	CENABLE;						\
-	LOAD_ARGS_##args;					\
-	/* Save the CENABLE return value in RA.  That register	\
-	   is preserved across syscall and the real return 	\
-	   address is saved on the stack.  */			\
-	mov	v0, ra;						\
-	lda	v0, SYS_ify(syscall_name);			\
-	call_pal PAL_callsys;					\
-	stq	v0, 8(sp);					\
-	mov	ra, a0;						\
-	bne	a3, $multi_error;				\
-	CDISABLE;						\
-	ldq	ra, 0(sp);					\
-	ldq	v0, 8(sp);					\
-	addq	sp, 64, sp;					\
-	cfi_remember_state;					\
-	cfi_restore(ra);					\
-	cfi_def_cfa_offset(0);					\
-	ret;							\
-	cfi_restore_state;					\
-__LABEL($multi_error)						\
-	CDISABLE;						\
-	ldq	ra, 0(sp);					\
-	ldq	v0, 8(sp);					\
-	addq	sp, 64, sp;					\
-	cfi_restore(ra);					\
-	cfi_def_cfa_offset(0);					\
-__LABEL($syscall_error)						\
-	SYSCALL_ERROR_HANDLER;					\
-	cfi_endproc;						\
-	.previous
-
-# undef PSEUDO_END
-# define PSEUDO_END(sym)					\
-	cfi_endproc;						\
-	.subsection 2;						\
-	.size sym, .-sym
-
-# define SAVE_ARGS_0	/* Nothing.  */
-# define SAVE_ARGS_1	SAVE_ARGS_0; stq a0, 8(sp)
-# define SAVE_ARGS_2	SAVE_ARGS_1; stq a1, 16(sp)
-# define SAVE_ARGS_3	SAVE_ARGS_2; stq a2, 24(sp)
-# define SAVE_ARGS_4	SAVE_ARGS_3; stq a3, 32(sp)
-# define SAVE_ARGS_5	SAVE_ARGS_4; stq a4, 40(sp)
-# define SAVE_ARGS_6	SAVE_ARGS_5; stq a5, 48(sp)
-
-# define LOAD_ARGS_0	/* Nothing.  */
-# define LOAD_ARGS_1	LOAD_ARGS_0; ldq a0, 8(sp)
-# define LOAD_ARGS_2	LOAD_ARGS_1; ldq a1, 16(sp)
-# define LOAD_ARGS_3	LOAD_ARGS_2; ldq a2, 24(sp)
-# define LOAD_ARGS_4	LOAD_ARGS_3; ldq a3, 32(sp)
-# define LOAD_ARGS_5	LOAD_ARGS_4; ldq a4, 40(sp)
-# define LOAD_ARGS_6	LOAD_ARGS_5; ldq a5, 48(sp)
-
 # ifdef IS_IN_libpthread
-#  define __local_enable_asynccancel	__pthread_enable_asynccancel
-#  define __local_disable_asynccancel	__pthread_disable_asynccancel
 #  define __local_multiple_threads	__pthread_multiple_threads
 # elif !defined NOT_IN_libc
-#  define __local_enable_asynccancel	__libc_enable_asynccancel
-#  define __local_disable_asynccancel	__libc_disable_asynccancel
 #  define __local_multiple_threads	__libc_multiple_threads
-# elif defined IS_IN_librt
-#  define __local_enable_asynccancel	__librt_enable_asynccancel
-#  define __local_disable_asynccancel	__librt_disable_asynccancel
-# else
-#  error Unsupported library
-# endif
-
-# ifdef __PIC__
-#  define CENABLE	bsr ra, __local_enable_asynccancel !samegp
-#  define CDISABLE	bsr ra, __local_disable_asynccancel !samegp
-# else
-#  define CENABLE	jsr ra, __local_enable_asynccancel; ldgp ra, 0(gp)
-#  define CDISABLE	jsr ra, __local_disable_asynccancel; ldgp ra, 0(gp)
 # endif
 
 # if defined IS_IN_libpthread || !defined NOT_IN_libc
-#  ifndef __ASSEMBLER__
 extern int __local_multiple_threads attribute_hidden;
-#   define SINGLE_THREAD_P \
+#  define SINGLE_THREAD_P \
 	__builtin_expect (__local_multiple_threads == 0, 1)
-#  elif defined(__PIC__)
-#   define SINGLE_THREAD_P(reg)  ldl reg, __local_multiple_threads(gp) !gprel
-#  else
-#   define SINGLE_THREAD_P(reg)					\
-	ldah	reg, __local_multiple_threads(gp) !gprelhigh;	\
-	ldl	reg, __local_multiple_threads(reg) !gprellow
-#  endif
 # else
-#  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(reg)					\
-	call_pal PAL_rduniq;					\
-	ldl reg, MULTIPLE_THREADS_OFFSET($0)
-#  endif
 # endif
 
 #else
@@ -169,8 +46,6 @@ extern int __local_multiple_threads attribute_hidden;
 
 #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
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/sysdep-cancel.h
index 01fd844d1..cfe55751f 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/sysdep-cancel.h
@@ -12,107 +12,13 @@
 
 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
 
-#ifdef __ASSEMBLER__
-
-#undef ret
-#define ret
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, nargs)			\
-   /* vanilla version */				`	\
-   ENTRY(name##_nocancel)				`	\
-      DO_CALL (__NR_##syscall_name)			`	\
-      jls  [blink]					`	\
-      b  __syscall_error@plt				`	\
-   END(name##_nocancel)					`	\
-   /* thread cancellation variant */			`	\
-   ENTRY(name)			    			`	\
-      SINGLE_THREAD_P					`	\
-      bz name##_nocancel				`	\
-      DOCARGS_##nargs  /* stash syscall args */		`	\
-      CENABLE          /* call enable_asynccancel */	`	\
-      mov r9, r0       /* Safe-keep mask */ 		`	\
-      UNDOCARGS_##nargs	/* restore syscall args */	`	\
-      DO_CALL (__NR_##syscall_name)			`	\
-      push  r0         /* save syscall return value */	`	\
-      mov   r0, r9     /* prep mask for disable_asynccancel */  `	\
-      CDISABLE	`	\
-      pop  r0           /* get syscall ret value back */  ` \
-      pop  blink	/* UNDOCARGS above left blink on stack */ `	\
-      cmp  r0, -1024	`	\
-      jls  [blink]					`	\
-      b  __syscall_error@plt				`	\
-   END(name)
-
-#undef	PSEUDO_END
-#define	PSEUDO_END(name)	\
-
 # ifdef IS_IN_libpthread
-#  define CENABLE	bl __pthread_enable_asynccancel
-#  define CDISABLE	bl __pthread_disable_asynccancel
 #  define __local_multiple_threads __pthread_multiple_threads
 # elif !defined NOT_IN_libc
-#  define CENABLE	bl __libc_enable_asynccancel
-#  define CDISABLE	bl __libc_disable_asynccancel
 #  define __local_multiple_threads __libc_multiple_threads
-# elif defined IS_IN_librt
-#  define CENABLE	bl __librt_enable_asynccancel
-#  define CDISABLE	bl __librt_disable_asynccancel
-# else
-#  error Unsupported library
 # endif
 
-#define DO_CALL(num)		\
-	mov	r8, num		`	\
-	ARC_TRAP_INSN		`	\
-	cmp r0, -1024
-
-.macro push reg
-	st.a \reg, [sp, -4]
-.endm
-
-.macro pop reg
-	ld.ab \reg, [sp, 4]
-.endm
-
-#define DOCARGS_0	push blink
-
-/* don't pop blink at this point */
-#define UNDOCARGS_0	ld   blink, [sp]
-
-#define DOCARGS_1	DOCARGS_0`	push r0
-#define UNDOCARGS_1			pop  r0`	UNDOCARGS_0
-
-#define DOCARGS_2	DOCARGS_1`	push r1
-#define UNDOCARGS_2			pop  r1`	UNDOCARGS_1
-
-#define DOCARGS_3	DOCARGS_2`	push r2
-#define UNDOCARGS_3			pop  r2`	UNDOCARGS_2
-
-#define DOCARGS_4	DOCARGS_3`	push r3
-#define UNDOCARGS_4			pop  r3`	UNDOCARGS_3
-
-#define DOCARGS_5	DOCARGS_4`	push r4
-#define UNDOCARGS_5			pop  r4`	UNDOCARGS_4
-
-#define DOCARGS_6	DOCARGS_5`	push r5
-#define UNDOCARGS_6			pop  r5`	UNDOCARGS_5
-
-#define DOCARGS_7	DOCARGS_6`	push r6
-#define UNDOCARGS_7			pop  r6`	UNDOCARGS_6
-
-#  define SINGLE_THREAD_P 			\
-    THREAD_SELF r9   `				\
-    ld	   r10, [r9, MULTIPLE_THREADS_OFFSET]`	\
-    cmp    r10, 0
-
-/*    ld	   r2, [r1, -TLS_PRE_TCB_SIZE + MULTIPLE_THREADS_OFFSET] */
-#else	/* !__ASSEMBLER__ */
-
-/* TBD: Can use @__local_multiple_threads for libc/libpthread like ARM */
-#   define SINGLE_THREAD_P	\
+# define SINGLE_THREAD_P	\
     likely(THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0)
 
-#endif /* __ASSEMBLER__ */
-
 #endif
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h
index 6f683ab72..ab2a2de52 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h
@@ -1,5 +1,4 @@
-/* Copyright (C) 2003, 2004, 2005, 2009 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+/* Copyright (C) 2003-2017 Free Software Foundation, Inc.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
@@ -23,222 +22,23 @@
 
 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
 
-/* NOTE: We do mark syscalls with unwind annotations, for the benefit of
-   cancellation; but they're really only accurate at the point of the
-   syscall.  The ARM unwind directives are not rich enough without adding
-   a custom personality function.  */
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)				\
-  .section ".text";							\
-    PSEUDO_PROLOGUE;							\
-  .type __##syscall_name##_nocancel,%function;				\
-  .globl __##syscall_name##_nocancel;					\
-  __##syscall_name##_nocancel:						\
-    cfi_sections(.debug_frame);						\
-    cfi_startproc;							\
-    DO_CALL (syscall_name, args);					\
-    PSEUDO_RET;								\
-    cfi_endproc;							\
-  .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	\
-  ENTRY (name);								\
-    SINGLE_THREAD_P;							\
-    DOARGS_##args;							\
-    bne .Lpseudo_cancel;						\
-    cfi_remember_state;							\
-    DO_CALL (syscall_name, 0);						\
-    UNDOARGS_##args;							\
-    cmn r0, $4096;							\
-    PSEUDO_RET;								\
-    cfi_restore_state;							\
-  .Lpseudo_cancel:							\
-    .fnstart;								\
-    DOCARGS_##args;	/* save syscall args etc. around CENABLE.  */	\
-    CENABLE;								\
-    mov ip, r0;		/* put mask in safe place.  */			\
-    UNDOCARGS_##args;	/* restore syscall args.  */			\
-    ldr r7, =SYS_ify (syscall_name);					\
-    swi 0x0;		/* do the call.  */				\
-    .fnend;		/* Past here we can't easily unwind.  */	\
-    mov r7, r0;		/* save syscall return value.  */		\
-    mov r0, ip;		/* get mask back.  */				\
-    CDISABLE;								\
-    mov r0, r7;		/* retrieve return value.  */			\
-    RESTORE_LR_##args;							\
-    UNDOARGS_##args;							\
-    cmn r0, $4096
-
-/* DOARGS pushes four bytes on the stack for five arguments, eight bytes for
-   six arguments, and nothing for fewer.  In order to preserve doubleword
-   alignment, sometimes we must save an extra register.  */
-
-# define RESTART_UNWIND \
-  .fnend; \
-  .fnstart; \
-  .save {r7, lr}
-
-# define DOCARGS_0 \
-  stmfd sp!, {r7, lr}; \
-  cfi_adjust_cfa_offset (8); \
-  cfi_rel_offset (r7, 0); \
-  cfi_rel_offset (lr, 4); \
-  .save {r7, lr}
-# define UNDOCARGS_0
-# define RESTORE_LR_0 \
-  ldmfd sp!, {r7, lr}; \
-  cfi_adjust_cfa_offset (-8); \
-  cfi_restore (r7); \
-  cfi_restore (lr)
-
-# define DOCARGS_1 \
-  stmfd sp!, {r0, r1, r7, lr}; \
-  cfi_adjust_cfa_offset (16); \
-  cfi_rel_offset (r7, 8); \
-  cfi_rel_offset (lr, 12); \
-  .save {r7, lr}; \
-  .pad #8
-# define UNDOCARGS_1 \
-  ldr r0, [sp], #8; \
-  cfi_adjust_cfa_offset (-8); \
-  RESTART_UNWIND
-# define RESTORE_LR_1 \
-  RESTORE_LR_0
-
-# define DOCARGS_2 \
-  stmfd sp!, {r0, r1, r7, lr}; \
-  cfi_adjust_cfa_offset (16); \
-  cfi_rel_offset (r7, 8); \
-  cfi_rel_offset (lr, 12); \
-  .save {r7, lr}; \
-  .pad #8
-# define UNDOCARGS_2 \
-  ldmfd sp!, {r0, r1}; \
-  cfi_adjust_cfa_offset (-8); \
-  RESTART_UNWIND
-# define RESTORE_LR_2 \
-  RESTORE_LR_0
-
-# define DOCARGS_3 \
-  stmfd sp!, {r0, r1, r2, r3, r7, lr}; \
-  cfi_adjust_cfa_offset (24); \
-  cfi_rel_offset (r7, 16); \
-  cfi_rel_offset (lr, 20); \
-  .save {r7, lr}; \
-  .pad #16
-# define UNDOCARGS_3 \
-  ldmfd sp!, {r0, r1, r2, r3}; \
-  cfi_adjust_cfa_offset (-16); \
-  RESTART_UNWIND
-# define RESTORE_LR_3 \
-  RESTORE_LR_0
-
-# define DOCARGS_4 \
-  stmfd sp!, {r0, r1, r2, r3, r7, lr}; \
-  cfi_adjust_cfa_offset (24); \
-  cfi_rel_offset (r7, 16); \
-  cfi_rel_offset (lr, 20); \
-  .save {r7, lr}; \
-  .pad #16
-# define UNDOCARGS_4 \
-  ldmfd sp!, {r0, r1, r2, r3}; \
-  cfi_adjust_cfa_offset (-16); \
-  RESTART_UNWIND
-# define RESTORE_LR_4 \
-  RESTORE_LR_0
-
-/* r4 is only stmfd'ed for correct stack alignment.  */
-# define DOCARGS_5 \
-  .save {r4}; \
-  stmfd sp!, {r0, r1, r2, r3, r4, r7, lr}; \
-  cfi_adjust_cfa_offset (28); \
-  cfi_rel_offset (r7, 20); \
-  cfi_rel_offset (lr, 24); \
-  .save {r7, lr}; \
-  .pad #20
-# define UNDOCARGS_5 \
-  ldmfd sp!, {r0, r1, r2, r3}; \
-  cfi_adjust_cfa_offset (-16); \
-  .fnend; \
-  .fnstart; \
-  .save {r4}; \
-  .save {r7, lr}; \
-  .pad #4
-# define RESTORE_LR_5 \
-  ldmfd sp!, {r4, r7, lr}; \
-  cfi_adjust_cfa_offset (-12); \
-  /* r4 will be marked as restored later.  */ \
-  cfi_restore (r7); \
-  cfi_restore (lr)
-
-# define DOCARGS_6 \
-  .save {r4, r5}; \
-  stmfd sp!, {r0, r1, r2, r3, r7, lr}; \
-  cfi_adjust_cfa_offset (24); \
-  cfi_rel_offset (r7, 16); \
-  cfi_rel_offset (lr, 20); \
-  .save {r7, lr}; \
-  .pad #16
-# define UNDOCARGS_6 \
-  ldmfd sp!, {r0, r1, r2, r3}; \
-  cfi_adjust_cfa_offset (-16); \
-  .fnend; \
-  .fnstart; \
-  .save {r4, r5}; \
-  .save {r7, lr}
-# define RESTORE_LR_6 \
-  RESTORE_LR_0
-
 # ifdef IS_IN_libpthread
-#  define CENABLE	bl PLTJMP(__pthread_enable_asynccancel)
-#  define CDISABLE	bl PLTJMP(__pthread_disable_asynccancel)
 #  define __local_multiple_threads __pthread_multiple_threads
 # elif !defined NOT_IN_libc
-#  define CENABLE	bl PLTJMP(__libc_enable_asynccancel)
-#  define CDISABLE	bl PLTJMP(__libc_disable_asynccancel)
 #  define __local_multiple_threads __libc_multiple_threads
-# elif defined IS_IN_librt
-#  define CENABLE	bl PLTJMP(__librt_enable_asynccancel)
-#  define CDISABLE	bl PLTJMP(__librt_disable_asynccancel)
-# else
-#  error Unsupported library
 # endif
 
 # if defined IS_IN_libpthread || !defined NOT_IN_libc
-#  ifndef __ASSEMBLER__
 extern int __local_multiple_threads attribute_hidden;
-#   define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
-#  else
-#   define SINGLE_THREAD_P						\
-  ldr ip, 1b;								\
-2:									\
-  ldr ip, [pc, ip];							\
-  teq ip, #0;
-#   define PSEUDO_PROLOGUE						\
-  1:  .word __local_multiple_threads - 2f - 8;
-#  endif
+#  define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
 # else
 /*  There is no __local_multiple_threads for librt, so use the TCB.  */
-#  ifndef __ASSEMBLER__
-#   define SINGLE_THREAD_P						\
+#  define SINGLE_THREAD_P						\
   __builtin_expect (THREAD_GETMEM (THREAD_SELF,				\
 				   header.multiple_threads) == 0, 1)
-#  else
-#   define PSEUDO_PROLOGUE
-#   define SINGLE_THREAD_P						\
-  stmfd	sp!, {r0, lr};							\
-  cfi_adjust_cfa_offset (8);						\
-  cfi_rel_offset (lr, 4);						\
-  bl	__aeabi_read_tp;						\
-  ldr	ip, [r0, #MULTIPLE_THREADS_OFFSET];				\
-  ldmfd	sp!, {r0, lr};							\
-  cfi_adjust_cfa_offset (-8);						\
-  cfi_restore (lr);							\
-  teq	ip, #0
-#   define SINGLE_THREAD_P_PIC(x) SINGLE_THREAD_P
-#  endif
 # endif
 
-#elif !defined __ASSEMBLER__
+#else
 
 /* For rtld, et cetera.  */
 # define SINGLE_THREAD_P 1
@@ -246,8 +46,6 @@ extern int __local_multiple_threads attribute_hidden;
 
 #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
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
index b0eb02600..ba88c55e2 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,131 +23,17 @@
 
 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
 
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)				      \
-  .text;								      \
-  ENTRY (name)								      \
-    cmpl $0, %gs:MULTIPLE_THREADS_OFFSET;				      \
-    jne L(pseudo_cancel);						      \
-  .type __##syscall_name##_nocancel,@function;				      \
-  .globl __##syscall_name##_nocancel;					      \
-  __##syscall_name##_nocancel:						      \
-    DO_CALL (syscall_name, args);					      \
-    cmpl $-4095, %eax;							      \
-    jae SYSCALL_ERROR_LABEL;						      \
-    ret;								      \
-  .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	      \
-  L(pseudo_cancel):							      \
-    CENABLE								      \
-    SAVE_OLDTYPE_##args							      \
-    PUSHCARGS_##args							      \
-    DOCARGS_##args							      \
-    movl $SYS_ify (syscall_name), %eax;					      \
-    ENTER_KERNEL;							      \
-    POPCARGS_##args;							      \
-    POPSTATE_##args							      \
-    cmpl $-4095, %eax;							      \
-    jae SYSCALL_ERROR_LABEL;						      \
-  L(pseudo_end):
-
-# define SAVE_OLDTYPE_0	movl %eax, %ecx;
-# define SAVE_OLDTYPE_1	SAVE_OLDTYPE_0
-# define SAVE_OLDTYPE_2	pushl %eax; cfi_adjust_cfa_offset (4);
-# define SAVE_OLDTYPE_3	SAVE_OLDTYPE_2
-# define SAVE_OLDTYPE_4	SAVE_OLDTYPE_2
-# define SAVE_OLDTYPE_5	SAVE_OLDTYPE_2
-# define SAVE_OLDTYPE_6	SAVE_OLDTYPE_2
-
-# define PUSHCARGS_0	/* No arguments to push.  */
-# define DOCARGS_0	/* No arguments to frob.  */
-# define POPCARGS_0	/* No arguments to pop.  */
-# define _PUSHCARGS_0	/* No arguments to push.  */
-# define _POPCARGS_0	/* No arguments to pop.  */
-
-# define PUSHCARGS_1	movl %ebx, %edx; cfi_register (ebx, edx); PUSHCARGS_0
-# define DOCARGS_1	_DOARGS_1 (4)
-# define POPCARGS_1	POPCARGS_0; movl %edx, %ebx; cfi_restore (ebx);
-# define _PUSHCARGS_1	pushl %ebx; cfi_adjust_cfa_offset (4); \
-			cfi_rel_offset (ebx, 0); _PUSHCARGS_0
-# define _POPCARGS_1	_POPCARGS_0; popl %ebx; \
-			cfi_adjust_cfa_offset (-4); cfi_restore (ebx);
-
-# define PUSHCARGS_2	PUSHCARGS_1
-# define DOCARGS_2	_DOARGS_2 (12)
-# define POPCARGS_2	POPCARGS_1
-# define _PUSHCARGS_2	_PUSHCARGS_1
-# define _POPCARGS_2	_POPCARGS_1
-
-# define PUSHCARGS_3	_PUSHCARGS_2
-# define DOCARGS_3	_DOARGS_3 (20)
-# define POPCARGS_3	_POPCARGS_3
-# define _PUSHCARGS_3	_PUSHCARGS_2
-# define _POPCARGS_3	_POPCARGS_2
-
-# define PUSHCARGS_4	_PUSHCARGS_4
-# define DOCARGS_4	_DOARGS_4 (28)
-# define POPCARGS_4	_POPCARGS_4
-# define _PUSHCARGS_4	pushl %esi; cfi_adjust_cfa_offset (4); \
-			cfi_rel_offset (esi, 0); _PUSHCARGS_3
-# define _POPCARGS_4	_POPCARGS_3; popl %esi; \
-			cfi_adjust_cfa_offset (-4); cfi_restore (esi);
-
-# define PUSHCARGS_5	_PUSHCARGS_5
-# define DOCARGS_5	_DOARGS_5 (36)
-# define POPCARGS_5	_POPCARGS_5
-# define _PUSHCARGS_5	pushl %edi; cfi_adjust_cfa_offset (4); \
-			cfi_rel_offset (edi, 0); _PUSHCARGS_4
-# define _POPCARGS_5	_POPCARGS_4; popl %edi; \
-			cfi_adjust_cfa_offset (-4); cfi_restore (edi);
-
-# define PUSHCARGS_6	_PUSHCARGS_6
-# define DOCARGS_6	_DOARGS_6 (44)
-# define POPCARGS_6	_POPCARGS_6
-# define _PUSHCARGS_6	pushl %ebp; cfi_adjust_cfa_offset (4); \
-			cfi_rel_offset (ebp, 0); _PUSHCARGS_5
-# define _POPCARGS_6	_POPCARGS_5; popl %ebp; \
-			cfi_adjust_cfa_offset (-4); cfi_restore (ebp);
-
-# ifdef IS_IN_libpthread
-#  define CENABLE	call __pthread_enable_asynccancel;
-#  define CDISABLE	call __pthread_disable_asynccancel
-# elif !defined NOT_IN_libc
-#  define CENABLE	call __libc_enable_asynccancel;
-#  define CDISABLE	call __libc_disable_asynccancel
-# elif defined IS_IN_librt
-#  define CENABLE	call __librt_enable_asynccancel;
-#  define CDISABLE	call __librt_disable_asynccancel
-# else
-#  error Unsupported library
-# endif
-# define POPSTATE_0 \
- pushl %eax; cfi_adjust_cfa_offset (4); movl %ecx, %eax; \
- CDISABLE; popl %eax; cfi_adjust_cfa_offset (-4);
-# define POPSTATE_1	POPSTATE_0
-# define POPSTATE_2	xchgl (%esp), %eax; CDISABLE; popl %eax; \
-			cfi_adjust_cfa_offset (-4);
-# define POPSTATE_3	POPSTATE_2
-# define POPSTATE_4	POPSTATE_3
-# define POPSTATE_5	POPSTATE_4
-# define POPSTATE_6	POPSTATE_5
-
-# 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 cmpl $0, %gs:MULTIPLE_THREADS_OFFSET
-# 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
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h
index c44b1039d..72823c0f2 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2003, 2004, 2005, 2009 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
@@ -23,120 +22,16 @@
 
 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
 
-/* NOTE: We do mark syscalls with unwind annotations, for the benefit of
-   cancellation; but they're really only accurate at the point of the
-   syscall.  The ARM unwind directives are not rich enough without adding
-   a custom personality function.  */
-
-#ifdef __ASSEMBLER__
-#undef ret
-#define ret								\
-   CMP D0Re0, #-4095;							\
-   MOVLO PC, D1RtP;							\
-   MOV D1Ar1, D0Re0;							\
-   B SYSCALL_ERROR;
-#endif /* __ASSEMBLER__ */
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)				\
-  .section ".text";							\
-  .type ___##syscall_name##_nocancel,%function;				\
-  .globl ___##syscall_name##_nocancel;					\
-  ___##syscall_name##_nocancel:						\
-    cfi_startproc;							\
-    DO_CALL (syscall_name, args);					\
-    MOV PC, D1RtP;							\
-    cfi_endproc;							\
-  .size ___##syscall_name##_nocancel,.-___##syscall_name##_nocancel;	\
-    .globl _##name;							\
-    .type _##name, @function;						\
-name##:									\
-_##name##:								\
-    DOCARGS_##args;							\
-    SINGLE_THREAD_P;							\
-    UNDOCARGS_##args;							\
-    BNE .Lpseudo_cancel;						\
-    cfi_remember_state;							\
-    DO_CALL (syscall_name, 0);						\
-    ret									\
-    cfi_restore_state;							\
-  .Lpseudo_cancel:							\
-    MSETL [A0StP++], D0FrT, D0.5;					\
-    DOCARGS_##args;	/* save syscall args etc. around CENABLE.  */	\
-    CENABLE;								\
-    MOV D0FrT, D0Re0;	/* put mask in safe place.  */			\
-    UNDOCARGS_##args;	/* restore syscall args.  */			\
-    DO_CALL(syscall_name, 0);	/* do the call.  */			\
-    MOV D0.5, D0Re0;	/* save syscall return value.  */		\
-    MOV D1Ar1, D0FrT;	/* get mask back.  */				\
-    CDISABLE;								\
-    MOV D0Re0, D0.5;	/* retrieve return value.  */			\
-    GETL D0.5, D1.5, [--A0StP];						\
-    GETL D0FrT, D1RtP, [--A0StP];
-
-# define DOCARGS_0
-# define UNDOCARGS_0
-
-# define DOCARGS_1 \
-  SETL [A0StP++], D1Ar1, D0Ar2
-# define UNDOCARGS_1 \
-  GETL D1Ar1, D0Ar2, [--A0StP]
-
-# define DOCARGS_2 DOCARGS_1
-
-# define UNDOCARGS_2 UNDOCARGS_2
-
-# define DOCARGS_3 \
-  MSETL [A0StP++], D1Ar1, D1Ar3
-
-# define UNDOCARGS_3 \
-  GETL D1Ar1, D0Ar2, [--A0StP];		\
-  GETL D1Ar3, D0Ar4, [--A0StP]
-
-# define DOCARGS_4 DOCARGS_3
-# define UNDOCARGS_4 UNDOCARGS_3
-
-# define DOCARGS_5 \
-  MSETL [A0StP++], D1Ar1, D1Ar3, D1Ar5
-# define UNDOCARGS_5 \
-  GETL D1Ar1, D0Ar2, [--A0StP];		\
-  GETL D1Ar3, D0Ar4, [--A0StP];		\
-  GETL D1Ar5, D0Ar6, [--A0StP]
-
-# define DOCARGS_6 DOCARGS_5
-# define UNDOCARGS_6 UNDOCARGS_5
-
 # ifdef IS_IN_libpthread
-#  define CENABLE	CALLR D1RtP, ___pthread_enable_asynccancel@PLT
-#  define CDISABLE	CALLR D1RtP, ___pthread_disable_asynccancel@PLT
 #  define __local_multiple_threads __pthread_multiple_threads
 # elif !defined NOT_IN_libc
-#  define CENABLE	CALLR D1RtP, ___libc_enable_asynccancel@PLT
-#  define CDISABLE	CALLR D1RtP, ___libc_disable_asynccancel@PLT
 #  define __local_multiple_threads __libc_multiple_threads
-# elif defined IS_IN_librt
-#  define CENABLE	CALLR D1RtP, ___librt_enable_asynccancel@PLT
-#  define CDISABLE	CALLR D1RtP, ___librt_disable_asynccancel@PLT
-# else
-#  error Unsupported library
 # endif
 
-#ifndef __ASSEMBLER__
-#   define SINGLE_THREAD_P						\
+#define SINGLE_THREAD_P						\
     likely(THREAD_GETMEM (THREAD_SELF,			\
 				   header.multiple_threads) == 0)
 #else
-#  define SINGLE_THREAD_P \
-	SETL	[A0StP++], D0FrT, D1RtP; \
-	CALLR	D1RtP, ___metag_load_tp@PLT; \
-	SUB	D0Re0, D0Re0, #TLS_PRE_TCB_SIZE;	\
-	GETD	D0Re0, [D0Re0 + #MULTIPLE_THREADS_OFFSET]; \
-	CMP	D0Re0, #0; \
-	GETL	D0FrT, D1RtP, [--A0StP]
-#endif
-