diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/or1k/sysdep-cancel.h')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/or1k/sysdep-cancel.h | 84 |
1 files changed, 3 insertions, 81 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/or1k/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/or1k/sysdep-cancel.h index 286fa0cce..f7e70514a 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/or1k/sysdep-cancel.h +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/or1k/sysdep-cancel.h @@ -1,5 +1,4 @@ /* Copyright (C) 2014 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 @@ -23,94 +22,17 @@ #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ -ENTRY(__##syscall_name##_nocancel); \ -L(pseudo_nocancel): \ - DO_CALL(syscall_name); \ - l.j L(pseudo_finish); \ - l.nop; \ -END(__##syscall_name##_nocancel); \ -ENTRY(name); \ - SINGLE_THREAD_P(r13); \ - l.sfeq r13,r0; \ - l.bnf L(pseudo_nocancel); \ - l.nop; \ - /* Reserve the same amount of stack space, effectivly disregarding \ - * how many args we're supposed to push. This makes the code easier. */ \ - l.addi r1,r1,-28; \ - cfi_adjust_cfa_offset(28); \ - PUSHARGS_##args; /* CENABLE is a function call, save args for syscall. */ \ - CENABLE; \ - l.sw 24(r1),r11; \ - POPARGS_##args; \ - DO_CALL(syscall_name); \ - l.lwz r3,24(r1); /* pass return value from CENABLE to CDISABLE. */ \ - l.sw 24(r1),r11; /* save syscall return value for after CDISABLE. */ \ - CDISABLE; \ - l.lwz r11,24(r1); /* restore syscall return value. */ \ - cfi_adjust_cfa_offset(-28); \ - l.addi r1,r1,28; \ -L(pseudo_finish): \ - /* if -4096 < ret < 0 holds, it's an error */ \ - l.sfgeui r11,0xf001; \ - l.bf L(pseudo_end); \ - l.nop - -# undef PSEUDO_END -# define PSEUDO_END(name) \ -L(pseudo_end): \ - l.j SYSCALL_ERROR_NAME; \ - l.ori r3,r11,0; \ - END(name) - -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 l.sw 0(r1),r3; -# define PUSHARGS_2 PUSHARGS_1 l.sw 4(r1),r4; -# define PUSHARGS_3 PUSHARGS_2 l.sw 8(r1),r5; -# define PUSHARGS_4 PUSHARGS_3 l.sw 12(r1),r6; -# define PUSHARGS_5 PUSHARGS_4 l.sw 16(r1),r7; -# define PUSHARGS_6 PUSHARGS_5 l.sw 20(r1),r8; - -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 l.lwz r3,0(r1); -# define POPARGS_2 POPARGS_1 l.lwz r4,4(r1); -# define POPARGS_3 POPARGS_2 l.lwz r5,8(r1); -# define POPARGS_4 POPARGS_3 l.lwz r6,12(r1); -# define POPARGS_5 POPARGS_4 l.lwz r7,16(r1); -# define POPARGS_6 POPARGS_5 l.lwz r8,20(r1); - -# define PSEUDO_JMP(sym) l.jal sym; l.nop; - -# ifdef IS_IN_libpthread -# define CENABLE PSEUDO_JMP (__pthread_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__pthread_disable_asynccancel) -# elif defined 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 \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -/* It's not super nice to have "r10" hardcoded here */ -# define SINGLE_THREAD_P(reg) l.lwz reg, MULTIPLE_THREADS_OFFSET(r10) -#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 |