diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h | 249 |
1 files changed, 0 insertions, 249 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 |