From ebd6f0076a83bb25a9853773fbfbcff00b4c9a32 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Thu, 12 Nov 2015 14:01:36 -0200 Subject: 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. --- .../sysv/linux/powerpc/powerpc64/sysdep-cancel.h | 147 --------------------- 1 file changed, 147 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc64') diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h deleted file mode 100644 index cad13da3ba..0000000000 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h +++ /dev/null @@ -1,147 +0,0 @@ -/* Cancellable system call stubs. Linux/PowerPC64 version. - Copyright (C) 2003-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Franz Sirl , 2003. - - 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 - . */ - -#include -#include -#ifndef __ASSEMBLER__ -# include -#endif - -#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) - -# define DASHDASHPFX(str) __##str - -#if _CALL_ELF == 2 -#define CANCEL_FRAMESIZE (FRAME_MIN_SIZE+16+48) -#define CANCEL_PARM_SAVE (FRAME_MIN_SIZE+16) -#else -#define CANCEL_FRAMESIZE (FRAME_MIN_SIZE+16) -#define CANCEL_PARM_SAVE (CANCEL_FRAMESIZE+FRAME_PARM_SAVE) -#endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - bne- .Lpseudo_cancel; \ - .type DASHDASHPFX(syscall_name##_nocancel),@function; \ - .globl DASHDASHPFX(syscall_name##_nocancel); \ - DASHDASHPFX(syscall_name##_nocancel): \ - DO_CALL (SYS_ify (syscall_name)); \ - PSEUDO_RET; \ - .size DASHDASHPFX(syscall_name##_nocancel),.-DASHDASHPFX(syscall_name##_nocancel); \ - .Lpseudo_cancel: \ - stdu 1,-CANCEL_FRAMESIZE(1); \ - cfi_adjust_cfa_offset (CANCEL_FRAMESIZE); \ - mflr 9; \ - std 9,CANCEL_FRAMESIZE+FRAME_LR_SAVE(1); \ - cfi_offset (lr, FRAME_LR_SAVE); \ - DOCARGS_##args; /* save syscall args around CENABLE. */ \ - CENABLE; \ - std 3,FRAME_MIN_SIZE(1); /* store CENABLE return value (MASK). */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - DO_CALL (SYS_ify (syscall_name)); \ - mfcr 0; /* save CR/R3 around CDISABLE. */ \ - std 3,FRAME_MIN_SIZE+8(1); \ - std 0,CANCEL_FRAMESIZE+FRAME_CR_SAVE(1); \ - cfi_offset (cr, FRAME_CR_SAVE); \ - ld 3,FRAME_MIN_SIZE(1); /* pass MASK to CDISABLE. */ \ - CDISABLE; \ - ld 9,CANCEL_FRAMESIZE+FRAME_LR_SAVE(1); \ - ld 0,CANCEL_FRAMESIZE+FRAME_CR_SAVE(1); /* restore CR/R3. */ \ - ld 3,FRAME_MIN_SIZE+8(1); \ - mtlr 9; \ - mtcr 0; \ - addi 1,1,CANCEL_FRAMESIZE; \ - cfi_adjust_cfa_offset (-CANCEL_FRAMESIZE); \ - cfi_restore (lr); \ - cfi_restore (cr) - -# define DOCARGS_0 -# define UNDOCARGS_0 - -# define DOCARGS_1 std 3,CANCEL_PARM_SAVE(1); DOCARGS_0 -# define UNDOCARGS_1 ld 3,CANCEL_PARM_SAVE(1); UNDOCARGS_0 - -# define DOCARGS_2 std 4,CANCEL_PARM_SAVE+8(1); DOCARGS_1 -# define UNDOCARGS_2 ld 4,CANCEL_PARM_SAVE+8(1); UNDOCARGS_1 - -# define DOCARGS_3 std 5,CANCEL_PARM_SAVE+16(1); DOCARGS_2 -# define UNDOCARGS_3 ld 5,CANCEL_PARM_SAVE+16(1); UNDOCARGS_2 - -# define DOCARGS_4 std 6,CANCEL_PARM_SAVE+24(1); DOCARGS_3 -# define UNDOCARGS_4 ld 6,CANCEL_PARM_SAVE+24(1); UNDOCARGS_3 - -# define DOCARGS_5 std 7,CANCEL_PARM_SAVE+32(1); DOCARGS_4 -# define UNDOCARGS_5 ld 7,CANCEL_PARM_SAVE+32(1); UNDOCARGS_4 - -# define DOCARGS_6 std 8,CANCEL_PARM_SAVE+40(1); DOCARGS_5 -# define UNDOCARGS_6 ld 8,CANCEL_PARM_SAVE+40(1); UNDOCARGS_5 - -# if IS_IN (libpthread) -# ifdef SHARED -# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) -# else -# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel); nop -# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel); nop -# endif -# elif IS_IN (libc) -# ifdef SHARED -# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) -# else -# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel); nop -# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel); nop -# endif -# elif IS_IN (librt) -# ifdef SHARED -# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel) -# else -# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel); nop -# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel); nop -# endif -# else -# error Unsupported library -# endif - -# ifndef __ASSEMBLER__ -# 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(13); \ - cmpwi 10,0 -# 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 -- cgit 1.4.1