From 6ffcc881dc156e1c9c0bc4b153091b4760b584cb Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Sat, 17 Oct 2009 13:09:30 -0700 Subject: sh specific bits needed for nptl * unified atomic.h compare and exchange macros * clone.S with RESET_PID support * sh specific versions of pread/pwrite with cancellation support * check SHARED instead of PIC Signed-off-by: Austin Foxley --- libc/sysdeps/linux/sh/longjmp.c | 56 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 libc/sysdeps/linux/sh/longjmp.c (limited to 'libc/sysdeps/linux/sh/longjmp.c') diff --git a/libc/sysdeps/linux/sh/longjmp.c b/libc/sysdeps/linux/sh/longjmp.c new file mode 100644 index 000000000..dd0616d8a --- /dev/null +++ b/libc/sysdeps/linux/sh/longjmp.c @@ -0,0 +1,56 @@ +/* Copyright (C) 1991, 92, 94, 95, 97, 98, 2000 Free Software Foundation, Inc. + Copyright (C) 2001 Hewlett-Packard Australia + + This program is free software; you can redistribute it and/or modify it under + the terms of the GNU Library General Public License as published by the Free + Software Foundation; either version 2 of the License, or (at your option) any + later version. + + This program 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 Library General Public License for more + details. + + You should have received a copy of the GNU Library General Public License + along with this program; if not, write to the Free Software Foundation, Inc., + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Derived in part from the Linux-8086 C library, the GNU C Library, and several + other sundry sources. Files within this library are copyright by their + respective copyright holders. +*/ + +#include +#include +#include + +libc_hidden_proto(sigprocmask) + +extern int __longjmp(char *env, int val); +libc_hidden_proto(__longjmp) + +extern void _longjmp_unwind (jmp_buf env, int val); + + +/* Set the signal mask to the one specified in ENV, and jump + to the position specified in ENV, causing the setjmp + call there to return VAL, or 1 if VAL is 0. */ +void __libc_siglongjmp (sigjmp_buf env, int val) +{ + /* Perform any cleanups needed by the frames being unwound. */ + + _longjmp_unwind (env, val); + + if (env[0].__mask_was_saved) + /* Restore the saved signal mask. */ + (void) sigprocmask (SIG_SETMASK, &env[0].__saved_mask, + (sigset_t *) NULL); + + /* Call the machine-dependent function to restore machine state. */ + __longjmp ((char *) env[0].__jmpbuf, val ?: 1); +} + +__asm__(".weak longjmp; longjmp = __libc_siglongjmp"); +__asm__(".weak _longjmp; _longjmp = __libc_siglongjmp"); +__asm__(".weak siglongjmp; siglongjmp = __libc_siglongjmp"); +strong_alias(__libc_siglongjmp, __libc_longjmp) -- cgit v1.2.3