diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h | 120 |
1 files changed, 9 insertions, 111 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h index a03e42a40..0baa76f2e 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h @@ -1,5 +1,4 @@ -/* Copyright (C) 2014-2016 Free Software Foundation, Inc. - This file is part of the GNU C Library. +/* Copyright (C) 2014-2017 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 @@ -23,129 +22,28 @@ #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt -# if !defined IS_IN_librt || !defined(PIC) -# define AC_STACK_SIZE 16 /* space for r15, async_cancel arg and 2 temp words */ -# define AC_SET_GOT /* empty */ -# define AC_RESTORE_GOT /* empty */ -# else -# define AC_STACK_SIZE 20 /* extra 4 bytes for r20 */ -# define AC_SET_GOT \ - swi r20, r1, AC_STACK_SIZE-4; \ - mfs r20, rpc; \ - addik r20, r20, _GLOBAL_OFFSET_TABLE_+8; -# define AC_RESTORE_GOT \ - lwi r20, r1, AC_STACK_SIZE-4; -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - SINGLE_THREAD_P(r12); \ - bnei r12, L(pseudo_cancel); \ - .globl __##syscall_name##_nocancel; \ - .type __##syscall_name##_nocancel,@function; \ -__##syscall_name##_nocancel: \ - DO_CALL (syscall_name, args); \ - addik r4, r0, -4095; \ - cmpu r4, r4, r3; \ - bgei r4, SYSCALL_ERROR_LABEL; \ - rtsd r15, 8; \ - nop; \ - .size __##syscall_name##_nocancel, .-__##syscall_name##_nocancel; \ -L(pseudo_cancel): \ - addik r1, r1, -AC_STACK_SIZE; \ - swi r15, r1, 0; \ - AC_SET_GOT \ - DOCARGS_##args \ - CENABLE; \ - swi r3, r1, 8; \ - UNDOCARGS_##args \ - DO_CALL (syscall_name, args); \ - swi r3, r1, 12; \ - lwi r5, r1, 8; \ - CDISABLE; \ - lwi r3, r1, 12; \ - lwi r15, r1, 0; \ - AC_RESTORE_GOT \ - addik r1, r1, AC_STACK_SIZE; \ - addik r4, r0, -4095; \ - cmpu r4, r4, r3; \ - bgei r4, SYSCALL_ERROR_LABEL; \ - rtsd r15, 8; \ - nop; - -/* - * Macros to save/restore syscall arguments across CENABLE - * The arguments are saved into the caller's stack (original r1 + 4) - */ - -# define DOCARGS_0 -# define DOCARGS_1 swi r5, r1, AC_STACK_SIZE + 4; -# define DOCARGS_2 swi r6, r1, AC_STACK_SIZE + 8; DOCARGS_1 -# define DOCARGS_3 swi r7, r1, AC_STACK_SIZE + 12; DOCARGS_2 -# define DOCARGS_4 swi r8, r1, AC_STACK_SIZE + 16; DOCARGS_3 -# define DOCARGS_5 swi r9, r1, AC_STACK_SIZE + 20; DOCARGS_4 -# define DOCARGS_6 swi r10, r1, AC_STACK_SIZE + 24; DOCARGS_5 - -# define UNDOCARGS_0 -# define UNDOCARGS_1 lwi r5, r1, AC_STACK_SIZE + 4; -# define UNDOCARGS_2 UNDOCARGS_1 lwi r6, r1, AC_STACK_SIZE + 8; -# define UNDOCARGS_3 UNDOCARGS_2 lwi r7, r1, AC_STACK_SIZE + 12; -# define UNDOCARGS_4 UNDOCARGS_3 lwi r8, r1, AC_STACK_SIZE + 16; -# define UNDOCARGS_5 UNDOCARGS_4 lwi r9, r1, AC_STACK_SIZE + 20; -# define UNDOCARGS_6 UNDOCARGS_5 lwi r10, r1, AC_STACK_SIZE + 24; - -# ifdef PIC -# define PSEUDO_JMP(sym) brlid r15, sym##@PLTPC; addk r0, r0, r0 -# else -# define PSEUDO_JMP(sym) brlid r15, sym; addk r0, r0, r0 -# endif - # if defined IS_IN_libpthread -# define CENABLE PSEUDO_JMP (__pthread_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__pthread_disable_asynccancel) # define __local_multiple_threads __pthread_multiple_threads # elif !defined NOT_IN_libc -# define CENABLE PSEUDO_JMP (__libc_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__libc_disable_asynccancel) # define __local_multiple_threads __libc_multiple_threads -# elif defined IS_IN_librt -# define CENABLE PSEUDO_JMP (__librt_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__librt_disable_asynccancel) -# else -# error Unsupported library # endif -#if !defined NOT_IN_libc || defined IS_IN_libpthread -# ifndef __ASSEMBLER__ +# if !defined NOT_IN_libc || defined IS_IN_libpthread extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# if !defined PIC -# define SINGLE_THREAD_P(reg) lwi reg, r0, __local_multiple_threads; -# else -# define SINGLE_THREAD_P(reg) \ - mfs reg, rpc; \ - addik reg, reg, _GLOBAL_OFFSET_TABLE_+8; \ - lwi reg, reg, __local_multiple_threads@GOT; \ - lwi reg, reg, 0; -# endif -# endif +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) # 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) \ - lwi reg, r0, MULTIPLE_THREADS_OFFSET(reg) -# endif # endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION (1) #endif + +#define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) |