Remove cancellation support for syscall generation

This patch removes the cancellation mark from the auto-generation syscall
script.  Now all the cancellable syscalls are done throught C code using
the SYSCALL_CANCEL macro.  It simplifies the assembly required to each
architecture port, since the SYSCALL_CANCEL uses the already defined
INLINE_SYSCALL macros, and allows a more straigh fix on cancellation
machanism (since no more specific assembly fixes will be required).

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.A
Also with build-many-glibc.py with remaning touched architectures.

	* sysdeps/unix/make-syscalls.sh: Remove cancellable tagging for
	syscall definitions.
	* sysdeps/unix/syscall-template.S (SYSCALL_CANCELLABLE): Remove
	definition.
	* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libpthread)] (__local_disable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (libc)] (__local_enable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	[IS_IN (librt)] (__local_disable_asynccancel): Likewise.
	(CENABLE): Likewise.
	(CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (PSEUDO): Remove
	defintion.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h (PSEUDO):
	Remove definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	(SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Remove file.
	* sysdeps/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Remove file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: New file.
	* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (PSEUDO): Remove
	definition.
	(PSEUDO_END): Likewise.
	[IS_IN (libpthread)] (CENABLE): Likewise.
	[IS_IN (libpthread)] (CDISABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (libc)] (CENABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[IS_IN (librt)] (CDISABLE): Likewise.
	[__ASSEMBLER__] (SINGLE_THREAD_P): Likewise.

2 files changed, 6 insertions, 409 deletions

diff --git a/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h
deleted file mode 100644
index 0ed3e3d62c..0000000000
--- a/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h
+++ /dev/null
@@ -1,249 +0,0 @@
-/* Copyright (C) 2003-2017 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
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <sysdep.h>
-#include <sysdeps/generic/sysdep.h>
-#include <tls.h>
-#ifndef __ASSEMBLER__
-# include <nptl/pthreadP.h>
-#endif
-#include <sys/asm.h>
-
-/* Gas will put the initial save of $gp into the CIE, because it appears to
-   happen before any instructions.  So we use cfi_same_value instead of
-   cfi_restore.  */
-
-#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt)
-
-#ifdef __PIC__
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)				      \
-      .align 2;								      \
-  L(pseudo_start):							      \
-      cfi_startproc;							      \
-      cfi_adjust_cfa_offset (STKSPACE);					      \
-      cfi_rel_offset (gp, STKOFF_GP);					      \
-  99: PTR_LA t9,__syscall_error;					      \
-      /* manual cpreturn */						      \
-      REG_L gp, STKOFF_GP(sp);						      \
-      cfi_same_value (gp);						      \
-      RESTORESTK;							      \
-      jr t9;								      \
-  .type __##syscall_name##_nocancel, @function;				      \
-  .globl __##syscall_name##_nocancel;					      \
-  __##syscall_name##_nocancel:						      \
-    SAVESTK;								      \
-    .cpsetup t9, STKOFF_GP, __##syscall_name##_nocancel;		      \
-    cfi_rel_offset (gp, STKOFF_GP);					      \
-    li v0, SYS_ify(syscall_name);					      \
-    syscall;								      \
-    bne a3, zero, SYSCALL_ERROR_LABEL;			       		      \
-    /* manual cpreturn */						      \
-    REG_L gp, STKOFF_GP(sp);						      \
-    cfi_same_value (gp);						      \
-    RESTORESTK;								      \
-    ret;								      \
-    cfi_endproc;							      \
-  .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	      \
-  ENTRY (name)								      \
-    SAVESTK;								      \
-    .cpsetup t9, STKOFF_GP, name;					      \
-    cfi_rel_offset (gp, STKOFF_GP);					      \
-    SINGLE_THREAD_P(v1);						      \
-    bne zero, v1, L(pseudo_cancel);					      \
-    .set noreorder;							      \
-    li v0, SYS_ify(syscall_name);					      \
-    syscall;								      \
-    .set reorder;							      \
-    bne a3, zero, SYSCALL_ERROR_LABEL;			       		      \
-    /* manual cpreturn */						      \
-    REG_L gp, STKOFF_GP(sp);						      \
-    cfi_same_value (gp);						      \
-    RESTORESTK;								      \
-    ret;								      \
-  L(pseudo_cancel):							      \
-    cfi_adjust_cfa_offset (STKSPACE);					      \
-    cfi_rel_offset (gp, STKOFF_GP);					      \
-    REG_S ra, STKOFF_RA(sp);						      \
-    cfi_rel_offset (ra, STKOFF_RA);					      \
-    PUSHARGS_##args;			/* save syscall args */	      	      \
-    CENABLE;								      \
-    REG_S v0, STKOFF_SVMSK(sp);		/* save mask */			      \
-    POPARGS_##args;			/* restore syscall args */	      \
-    .set noreorder;							      \
-    li v0, SYS_ify (syscall_name);				      	      \
-    syscall;								      \
-    .set reorder;							      \
-    REG_S v0, STKOFF_SC_V0(sp);		/* save syscall result */             \
-    REG_S a3, STKOFF_SC_ERR(sp);	/* save syscall error flag */	      \
-    REG_L a0, STKOFF_SVMSK(sp);		/* pass mask as arg1 */		      \
-    CDISABLE;								      \
-    REG_L a3, STKOFF_SC_ERR(sp);	/* restore syscall error flag */      \
-    REG_L ra, STKOFF_RA(sp);		/* restore return address */	      \
-    REG_L v0, STKOFF_SC_V0(sp);		/* restore syscall result */          \
-    bne a3, zero, SYSCALL_ERROR_LABEL;					      \
-    /* manual cpreturn */						      \
-    REG_L gp, STKOFF_GP(sp);						      \
-    cfi_same_value (gp);						      \
-    RESTORESTK;								      \
-  L(pseudo_end):
-#else
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)				      \
-      .align 2;								      \
-  L(pseudo_start):							      \
-      cfi_startproc;							      \
-      cfi_adjust_cfa_offset (STKSPACE);					      \
-  99: RESTORESTK;							      \
-      j __syscall_error;						      \
-  .type __##syscall_name##_nocancel, @function;				      \
-  .globl __##syscall_name##_nocancel;					      \
-  __##syscall_name##_nocancel:						      \
-    SAVESTK;								      \
-    li v0, SYS_ify(syscall_name);					      \
-    syscall;								      \
-    bne a3, zero, SYSCALL_ERROR_LABEL;			       		      \
-    RESTORESTK;								      \
-    ret;								      \
-    cfi_endproc;							      \
-  .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	      \
-  ENTRY (name)								      \
-    SAVESTK;								      \
-    SINGLE_THREAD_P(v1);						      \
-    bne zero, v1, L(pseudo_cancel);					      \
-    .set noreorder;							      \
-    li v0, SYS_ify(syscall_name);					      \
-    syscall;								      \
-    .set reorder;							      \
-    bne a3, zero, SYSCALL_ERROR_LABEL;			       		      \
-    RESTORESTK;								      \
-    ret;								      \
-  L(pseudo_cancel):							      \
-    cfi_adjust_cfa_offset (STKSPACE);					      \
-    REG_S ra, STKOFF_RA(sp);						      \
-    cfi_rel_offset (ra, STKOFF_RA);					      \
-    PUSHARGS_##args;			/* save syscall args */	      	      \
-    CENABLE;								      \
-    REG_S v0, STKOFF_SVMSK(sp);		/* save mask */			      \
-    POPARGS_##args;			/* restore syscall args */	      \
-    .set noreorder;							      \
-    li v0, SYS_ify (syscall_name);				      	      \
-    syscall;								      \
-    .set reorder;							      \
-    REG_S v0, STKOFF_SC_V0(sp);		/* save syscall result */             \
-    REG_S a3, STKOFF_SC_ERR(sp);	/* save syscall error flag */	      \
-    REG_L a0, STKOFF_SVMSK(sp);		/* pass mask as arg1 */		      \
-    CDISABLE;								      \
-    REG_L a3, STKOFF_SC_ERR(sp);	/* restore syscall error flag */      \
-    REG_L ra, STKOFF_RA(sp);		/* restore return address */	      \
-    REG_L v0, STKOFF_SC_V0(sp);		/* restore syscall result */          \
-    bne a3, zero, SYSCALL_ERROR_LABEL;					      \
-    RESTORESTK;								      \
-  L(pseudo_end):
-#endif
-
-# undef PSEUDO_END
-# define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym
-
-# define PUSHARGS_0	/* nothing to do */
-# define PUSHARGS_1	PUSHARGS_0 REG_S a0, STKOFF_A0(sp); cfi_rel_offset (a0, STKOFF_A0);
-# define PUSHARGS_2	PUSHARGS_1 REG_S a1, STKOFF_A1(sp); cfi_rel_offset (a1, STKOFF_A1);
-# define PUSHARGS_3	PUSHARGS_2 REG_S a2, STKOFF_A2(sp); cfi_rel_offset (a2, STKOFF_A2);
-# define PUSHARGS_4	PUSHARGS_3 REG_S a3, STKOFF_A3(sp); cfi_rel_offset (a3, STKOFF_A3);
-# define PUSHARGS_5	PUSHARGS_4 REG_S a4, STKOFF_A4(sp); cfi_rel_offset (a3, STKOFF_A4);
-# define PUSHARGS_6	PUSHARGS_5 REG_S a5, STKOFF_A5(sp); cfi_rel_offset (a3, STKOFF_A5);
-
-# define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 REG_L a0, STKOFF_A0(sp);
-# define POPARGS_2	POPARGS_1 REG_L a1, STKOFF_A1(sp);
-# define POPARGS_3	POPARGS_2 REG_L a2, STKOFF_A2(sp);
-# define POPARGS_4	POPARGS_3 REG_L a3, STKOFF_A3(sp);
-# define POPARGS_5	POPARGS_4 REG_L a4, STKOFF_A4(sp);
-# define POPARGS_6	POPARGS_5 REG_L a5, STKOFF_A5(sp);
-
-/* Save an even number of slots.  Should be 0 if an even number of slots
-   are used below, or SZREG if an odd number are used.  */
-# ifdef __PIC__
-#  define STK_PAD	SZREG
-# else
-#  define STK_PAD	0
-# endif
-
-/* Place values that we are more likely to use later in this sequence, i.e.
-   closer to the SP at function entry.  If you do that, the are more
-   likely to already be in your d-cache.  */
-# define STKOFF_A5	(STK_PAD)
-# define STKOFF_A4	(STKOFF_A5 + SZREG)
-# define STKOFF_A3	(STKOFF_A4 + SZREG)
-# define STKOFF_A2	(STKOFF_A3 + SZREG)	/* MT and more args.  */
-# define STKOFF_A1	(STKOFF_A2 + SZREG)	/* MT and 2 args.  */
-# define STKOFF_A0	(STKOFF_A1 + SZREG)	/* MT and 1 arg.  */
-# define STKOFF_RA	(STKOFF_A0 + SZREG)	/* Used if MT.  */
-# define STKOFF_SC_V0	(STKOFF_RA + SZREG)	/* Used if MT.  */
-# define STKOFF_SC_ERR	(STKOFF_SC_V0 + SZREG)	/* Used if MT.  */
-# define STKOFF_SVMSK	(STKOFF_SC_ERR + SZREG)	/* Used if MT.  */
-
-# ifdef __PIC__
-#  define STKOFF_GP	(STKOFF_SVMSK + SZREG)	/* Always used.  */
-#  define STKSPACE	(STKOFF_GP + SZREG)
-# else
-#  define STKSPACE	(STKOFF_SVMSK + SZREG)
-# endif
-
-# define SAVESTK 	PTR_SUBU sp, STKSPACE; cfi_adjust_cfa_offset(STKSPACE)
-# define RESTORESTK 	PTR_ADDU sp, STKSPACE; cfi_adjust_cfa_offset(-STKSPACE)
-
-# ifdef __PIC__
-#  define PSEUDO_JMP(sym) PTR_LA t9, sym; jalr t9
-# else
-#  define PSEUDO_JMP(sym) jal sym
-# endif
-
-# if IS_IN (libpthread)
-#  define CENABLE	PSEUDO_JMP (__pthread_enable_asynccancel)
-#  define CDISABLE	PSEUDO_JMP (__pthread_disable_asynccancel)
-# elif IS_IN (librt)
-#  define CENABLE	PSEUDO_JMP (__librt_enable_asynccancel)
-#  define CDISABLE	PSEUDO_JMP (__librt_disable_asynccancel)
-# else
-#  define CENABLE	PSEUDO_JMP (__libc_enable_asynccancel)
-#  define CDISABLE	PSEUDO_JMP (__libc_disable_asynccancel)
-# endif
-
-# ifndef __ASSEMBLER__
-#  define SINGLE_THREAD_P						\
-	__builtin_expect (THREAD_GETMEM (THREAD_SELF,			\
-					 header.multiple_threads)	\
-			  == 0, 1)
-# else
-#  define SINGLE_THREAD_P(reg)						\
-	READ_THREAD_POINTER(reg);					\
-	lw reg, MULTIPLE_THREADS_OFFSET(reg)
-#endif
-
-#elif !defined __ASSEMBLER__
-
-# define SINGLE_THREAD_P 1
-# define NO_CANCELLATION 1
-
-#endif
-
-#ifndef __ASSEMBLER__
-# define RTLD_SINGLE_THREAD_P \
-  __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
-				   header.multiple_threads) == 0, 1)
-#endif
diff --git a/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h b/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h
index 0e45f00242..76d7ef43cf 100644
--- a/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h
+++ b/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h
@@ -18,173 +18,19 @@
 #include <sysdep.h>
 #include <sysdeps/generic/sysdep.h>
 #include <tls.h>
-#ifndef __ASSEMBLER__
-# include <nptl/pthreadP.h>
-#endif
+#include <nptl/pthreadP.h>
 
 #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt)
 
-# ifdef __PIC__
-#  define PSEUDO_CPLOAD .cpload t9;
-#  define PSEUDO_ERRJMP la t9, __syscall_error; jr t9;
-#  define PSEUDO_SAVEGP sw gp, 32(sp); cfi_rel_offset (gp, 32);
-#  define PSEUDO_LOADGP lw gp, 32(sp);
-# else
-#  define PSEUDO_CPLOAD
-#  define PSEUDO_ERRJMP j __syscall_error;
-#  define PSEUDO_SAVEGP
-#  define PSEUDO_LOADGP
-# endif
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args)				      \
-      .align 2;								      \
-      .set nomips16;							      \
-  L(pseudo_start):							      \
-      cfi_startproc;							      \
-  99: PSEUDO_ERRJMP							      \
-  .type __##syscall_name##_nocancel, @function;				      \
-  .globl __##syscall_name##_nocancel;					      \
-  __##syscall_name##_nocancel:						      \
-    .set noreorder;							      \
-    PSEUDO_CPLOAD							      \
-    li v0, SYS_ify(syscall_name);					      \
-    syscall;								      \
-    .set reorder;							      \
-    bne a3, zero, 99b;					       		      \
-    ret;								      \
-    cfi_endproc;							      \
-  .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;	      \
-  ENTRY (name)								      \
-    .set noreorder;							      \
-    PSEUDO_CPLOAD							      \
-    .set reorder;							      \
-    SINGLE_THREAD_P(v1);						      \
-    bne zero, v1, L(pseudo_cancel);					      \
-    .set noreorder;							      \
-    li v0, SYS_ify(syscall_name);					      \
-    syscall;								      \
-    .set reorder;							      \
-    bne a3, zero, 99b;					       		      \
-    ret;								      \
-  L(pseudo_cancel):							      \
-    SAVESTK_##args;						              \
-    sw ra, 28(sp);							      \
-    cfi_rel_offset (ra, 28);						      \
-    PSEUDO_SAVEGP							      \
-    PUSHARGS_##args;			/* save syscall args */	      	      \
-    CENABLE;								      \
-    PSEUDO_LOADGP							      \
-    sw v0, 44(sp);			/* save mask */			      \
-    POPARGS_##args;			/* restore syscall args */	      \
-    .set noreorder;							      \
-    li v0, SYS_ify (syscall_name);				      	      \
-    syscall;								      \
-    .set reorder;							      \
-    sw v0, 36(sp);			/* save syscall result */             \
-    sw a3, 40(sp);			/* save syscall error flag */	      \
-    lw a0, 44(sp);			/* pass mask as arg1 */		      \
-    CDISABLE;								      \
-    PSEUDO_LOADGP							      \
-    lw v0, 36(sp);			/* restore syscall result */          \
-    lw a3, 40(sp);			/* restore syscall error flag */      \
-    lw ra, 28(sp);			/* restore return address */	      \
-    .set noreorder;							      \
-    bne a3, zero, 99b;							      \
-     RESTORESTK;						              \
-  L(pseudo_end):							      \
-    .set reorder;
-
-# undef PSEUDO_END
-# define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym
-
-# define PUSHARGS_0	/* nothing to do */
-# define PUSHARGS_1	PUSHARGS_0 sw a0, 0(sp); cfi_rel_offset (a0, 0);
-# define PUSHARGS_2	PUSHARGS_1 sw a1, 4(sp); cfi_rel_offset (a1, 4);
-# define PUSHARGS_3	PUSHARGS_2 sw a2, 8(sp); cfi_rel_offset (a2, 8);
-# define PUSHARGS_4	PUSHARGS_3 sw a3, 12(sp); cfi_rel_offset (a3, 12);
-# define PUSHARGS_5	PUSHARGS_4 /* handled by SAVESTK_## */
-# define PUSHARGS_6	PUSHARGS_5
-# define PUSHARGS_7	PUSHARGS_6
-
-# define POPARGS_0	/* nothing to do */
-# define POPARGS_1	POPARGS_0 lw a0, 0(sp);
-# define POPARGS_2	POPARGS_1 lw a1, 4(sp);
-# define POPARGS_3	POPARGS_2 lw a2, 8(sp);
-# define POPARGS_4	POPARGS_3 lw a3, 12(sp);
-# define POPARGS_5	POPARGS_4 /* args already in new stackframe */
-# define POPARGS_6	POPARGS_5
-# define POPARGS_7	POPARGS_6
-
-
-# define STKSPACE	48
-# define SAVESTK_0 	subu sp, STKSPACE; cfi_adjust_cfa_offset(STKSPACE)
-# define SAVESTK_1      SAVESTK_0
-# define SAVESTK_2      SAVESTK_1
-# define SAVESTK_3      SAVESTK_2
-# define SAVESTK_4      SAVESTK_3
-# define SAVESTK_5      lw t0, 16(sp);		\
-			SAVESTK_0;		\
-			sw t0, 16(sp)
-
-# define SAVESTK_6      lw t0, 16(sp);		\
-			lw t1, 20(sp);		\
-			SAVESTK_0;		\
-			sw t0, 16(sp);		\
-			sw t1, 20(sp)
+# define SINGLE_THREAD_P						\
+  __glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0)
 
-# define SAVESTK_7      lw t0, 16(sp);		\
-			lw t1, 20(sp);		\
-			lw t2, 24(sp);		\
-			SAVESTK_0;		\
-			sw t0, 16(sp);		\
-			sw t1, 20(sp);		\
-			sw t2, 24(sp)
-
-# define RESTORESTK 	addu sp, STKSPACE; cfi_adjust_cfa_offset(-STKSPACE)
-
-
-# ifdef __PIC__
-/* We use jalr rather than jal.  This means that the assembler will not
-   automatically restore $gp (in case libc has multiple GOTs) so we must
-   do it manually - which we have to do anyway since we don't use .cprestore.
-   It also shuts up the assembler warning about not using .cprestore.  */
-#  define PSEUDO_JMP(sym) la t9, sym; jalr t9;
-# else
-#  define PSEUDO_JMP(sym) jal sym;
-# endif
-
-# if IS_IN (libpthread)
-#  define CENABLE	PSEUDO_JMP (__pthread_enable_asynccancel)
-#  define CDISABLE	PSEUDO_JMP (__pthread_disable_asynccancel)
-# elif IS_IN (librt)
-#  define CENABLE	PSEUDO_JMP (__librt_enable_asynccancel)
-#  define CDISABLE	PSEUDO_JMP (__librt_disable_asynccancel)
-# else
-#  define CENABLE	PSEUDO_JMP (__libc_enable_asynccancel)
-#  define CDISABLE	PSEUDO_JMP (__libc_disable_asynccancel)
-# endif
-
-# ifndef __ASSEMBLER__
-#  define SINGLE_THREAD_P						\
-	__builtin_expect (THREAD_GETMEM (THREAD_SELF,			\
-					 header.multiple_threads)	\
-			  == 0, 1)
-# else
-#  define SINGLE_THREAD_P(reg)						\
-	READ_THREAD_POINTER(reg);					\
-	lw reg, MULTIPLE_THREADS_OFFSET(reg)
-#endif
-
-#elif !defined __ASSEMBLER__
+#else
 
 # define SINGLE_THREAD_P 1
 # define NO_CANCELLATION 1
 
 #endif
 
-#ifndef __ASSEMBLER__
-# define RTLD_SINGLE_THREAD_P \
-  __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
-				   header.multiple_threads) == 0, 1)
-#endif
+#define RTLD_SINGLE_THREAD_P \
+  __glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0)