diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h | 111 |
1 files changed, 2 insertions, 109 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h index c44b1039d..72823c0f2 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/sysdep-cancel.h @@ -1,5 +1,4 @@ /* Copyright (C) 2003, 2004, 2005, 2009 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 @@ -23,120 +22,16 @@ #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt -/* NOTE: We do mark syscalls with unwind annotations, for the benefit of - cancellation; but they're really only accurate at the point of the - syscall. The ARM unwind directives are not rich enough without adding - a custom personality function. */ - -#ifdef __ASSEMBLER__ -#undef ret -#define ret \ - CMP D0Re0, #-4095; \ - MOVLO PC, D1RtP; \ - MOV D1Ar1, D0Re0; \ - B SYSCALL_ERROR; -#endif /* __ASSEMBLER__ */ - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ - .type ___##syscall_name##_nocancel,%function; \ - .globl ___##syscall_name##_nocancel; \ - ___##syscall_name##_nocancel: \ - cfi_startproc; \ - DO_CALL (syscall_name, args); \ - MOV PC, D1RtP; \ - cfi_endproc; \ - .size ___##syscall_name##_nocancel,.-___##syscall_name##_nocancel; \ - .globl _##name; \ - .type _##name, @function; \ -name##: \ -_##name##: \ - DOCARGS_##args; \ - SINGLE_THREAD_P; \ - UNDOCARGS_##args; \ - BNE .Lpseudo_cancel; \ - cfi_remember_state; \ - DO_CALL (syscall_name, 0); \ - ret \ - cfi_restore_state; \ - .Lpseudo_cancel: \ - MSETL [A0StP++], D0FrT, D0.5; \ - DOCARGS_##args; /* save syscall args etc. around CENABLE. */ \ - CENABLE; \ - MOV D0FrT, D0Re0; /* put mask in safe place. */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - DO_CALL(syscall_name, 0); /* do the call. */ \ - MOV D0.5, D0Re0; /* save syscall return value. */ \ - MOV D1Ar1, D0FrT; /* get mask back. */ \ - CDISABLE; \ - MOV D0Re0, D0.5; /* retrieve return value. */ \ - GETL D0.5, D1.5, [--A0StP]; \ - GETL D0FrT, D1RtP, [--A0StP]; - -# define DOCARGS_0 -# define UNDOCARGS_0 - -# define DOCARGS_1 \ - SETL [A0StP++], D1Ar1, D0Ar2 -# define UNDOCARGS_1 \ - GETL D1Ar1, D0Ar2, [--A0StP] - -# define DOCARGS_2 DOCARGS_1 - -# define UNDOCARGS_2 UNDOCARGS_2 - -# define DOCARGS_3 \ - MSETL [A0StP++], D1Ar1, D1Ar3 - -# define UNDOCARGS_3 \ - GETL D1Ar1, D0Ar2, [--A0StP]; \ - GETL D1Ar3, D0Ar4, [--A0StP] - -# define DOCARGS_4 DOCARGS_3 -# define UNDOCARGS_4 UNDOCARGS_3 - -# define DOCARGS_5 \ - MSETL [A0StP++], D1Ar1, D1Ar3, D1Ar5 -# define UNDOCARGS_5 \ - GETL D1Ar1, D0Ar2, [--A0StP]; \ - GETL D1Ar3, D0Ar4, [--A0StP]; \ - GETL D1Ar5, D0Ar6, [--A0StP] - -# define DOCARGS_6 DOCARGS_5 -# define UNDOCARGS_6 UNDOCARGS_5 - # ifdef IS_IN_libpthread -# define CENABLE CALLR D1RtP, ___pthread_enable_asynccancel@PLT -# define CDISABLE CALLR D1RtP, ___pthread_disable_asynccancel@PLT # define __local_multiple_threads __pthread_multiple_threads # elif !defined NOT_IN_libc -# define CENABLE CALLR D1RtP, ___libc_enable_asynccancel@PLT -# define CDISABLE CALLR D1RtP, ___libc_disable_asynccancel@PLT # define __local_multiple_threads __libc_multiple_threads -# elif defined IS_IN_librt -# define CENABLE CALLR D1RtP, ___librt_enable_asynccancel@PLT -# define CDISABLE CALLR D1RtP, ___librt_disable_asynccancel@PLT -# else -# error Unsupported library # endif -#ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +#define SINGLE_THREAD_P \ likely(THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0) #else -# define SINGLE_THREAD_P \ - SETL [A0StP++], D0FrT, D1RtP; \ - CALLR D1RtP, ___metag_load_tp@PLT; \ - SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \ - GETD D0Re0, [D0Re0 + #MULTIPLE_THREADS_OFFSET]; \ - CMP D0Re0, #0; \ - GETL D0FrT, D1RtP, [--A0StP] -#endif - - -#elif !defined __ASSEMBLER__ /* For rtld, et cetera. */ # define SINGLE_THREAD_P 1 @@ -144,8 +39,6 @@ _##name##: \ #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ likely(THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0) -#endif |