diff options
Diffstat (limited to 'sysdeps/s390')
| -rw-r--r-- | sysdeps/s390/Makefile | 5 | ||||
| -rw-r--r-- | sysdeps/s390/Versions | 11 | ||||
| -rw-r--r-- | sysdeps/s390/__longjmp.c | 31 | ||||
| -rw-r--r-- | sysdeps/s390/bits/setjmp.h | 4 | ||||
| -rw-r--r-- | sysdeps/s390/longjmp.c | 64 | ||||
| -rw-r--r-- | sysdeps/s390/rtld-__longjmp.c | 19 | ||||
| -rw-r--r-- | sysdeps/s390/rtld-setjmp.S | 20 | ||||
| -rw-r--r-- | sysdeps/s390/s390-32/__longjmp-common.c (renamed from sysdeps/s390/s390-32/__longjmp.c) | 2 | ||||
| -rw-r--r-- | sysdeps/s390/s390-32/setjmp-common.S (renamed from sysdeps/s390/s390-32/setjmp.S) | 24 | ||||
| -rw-r--r-- | sysdeps/s390/s390-64/__longjmp-common.c (renamed from sysdeps/s390/s390-64/__longjmp.c) | 2 | ||||
| -rw-r--r-- | sysdeps/s390/s390-64/setjmp-common.S (renamed from sysdeps/s390/s390-64/setjmp.S) | 16 | ||||
| -rw-r--r-- | sysdeps/s390/setjmp.S | 64 | ||||
| -rw-r--r-- | sysdeps/s390/sigjmp.c | 34 | ||||
| -rw-r--r-- | sysdeps/s390/v1-longjmp.c | 57 | ||||
| -rw-r--r-- | sysdeps/s390/v1-setjmp.h | 111 | ||||
| -rw-r--r-- | sysdeps/s390/v1-sigjmp.c | 44 |
16 files changed, 490 insertions, 18 deletions
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile new file mode 100644 index 0000000000..fdc6ee50dc --- /dev/null +++ b/sysdeps/s390/Makefile @@ -0,0 +1,5 @@ +ifeq ($(subdir),setjmp) +ifeq (yes,$(build-shared)) +sysdep_routines += v1-longjmp v1-sigjmp +endif +endif diff --git a/sysdeps/s390/Versions b/sysdeps/s390/Versions index baf9842eeb..156abc79f4 100644 --- a/sysdeps/s390/Versions +++ b/sysdeps/s390/Versions @@ -1,3 +1,14 @@ +libc { + GLIBC_2.19 { + setjmp; _setjmp; __setjmp; __sigsetjmp; + longjmp; _longjmp; siglongjmp; + } + GLIBC_PRIVATE { + __v1__libc_longjmp; __v1__libc_siglongjmp; + __v2__libc_longjmp; __v2__libc_siglongjmp; + } +} + ld { GLIBC_2.3 { # runtime interface to TLS diff --git a/sysdeps/s390/__longjmp.c b/sysdeps/s390/__longjmp.c new file mode 100644 index 0000000000..e4acd31c4a --- /dev/null +++ b/sysdeps/s390/__longjmp.c @@ -0,0 +1,31 @@ +/* Copyright (C) 2013 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 <libc-symbols.h> +#include <shlib-compat.h> + +#define __longjmp __v2__longjmp +#include "__longjmp-common.c" +#undef __longjmp +strong_alias (__v2__longjmp, __longjmp) + +#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) +# undef __longjmp +# define __V1_JMPBUF +# define __longjmp __v1__longjmp +# include "__longjmp-common.c" +#endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) */ diff --git a/sysdeps/s390/bits/setjmp.h b/sysdeps/s390/bits/setjmp.h index 0071a9dce5..25eaf10fdf 100644 --- a/sysdeps/s390/bits/setjmp.h +++ b/sysdeps/s390/bits/setjmp.h @@ -40,6 +40,10 @@ typedef struct __s390_jmp_buf /* We save fpu registers 4 and 6. */ long __fpregs[4]; # endif +#ifndef __V1_JMPBUF + unsigned long __flags; + char __reserved[128]; +#endif } __jmp_buf[1]; #endif diff --git a/sysdeps/s390/longjmp.c b/sysdeps/s390/longjmp.c new file mode 100644 index 0000000000..c758d149a4 --- /dev/null +++ b/sysdeps/s390/longjmp.c @@ -0,0 +1,64 @@ +/* Copyright (C) 2013 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/>. + + Versioned copy of sysdeps/generic/longjmp.c modified for extended + jmpbuf. */ + +#include <shlib-compat.h> +#include <stddef.h> +#include <setjmp.h> +#include <signal.h> + +extern void __v2__longjmp (__jmp_buf __env, int __val) + __attribute__ ((__noreturn__)); +extern void __v2__libc_longjmp (sigjmp_buf env, int val) + __attribute__ ((__noreturn__)); +libc_hidden_proto (__v2__libc_longjmp) + +/* 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 +__v2__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. */ + __v2__longjmp (env[0].__jmpbuf, val ?: 1); +} + +#ifndef __v2__longjmp +strong_alias (__v2__libc_siglongjmp, __v2__libc_longjmp) +libc_hidden_def (__v2__libc_longjmp) +weak_alias (__v2__libc_siglongjmp, __v2_longjmp) +weak_alias (__v2__libc_siglongjmp, __v2longjmp) +weak_alias (__v2__libc_siglongjmp, __v2siglongjmp) + +/* These will be used by libpthread only. */ +versioned_symbol (libc, __v2__libc_longjmp, __libc_longjmp, GLIBC_PRIVATE); +versioned_symbol (libc, __v2__libc_siglongjmp, __libc_siglongjmp, GLIBC_PRIVATE); + +versioned_symbol (libc, __v2_longjmp, _longjmp, GLIBC_2_19); +versioned_symbol (libc, __v2longjmp, longjmp, GLIBC_2_19); +versioned_symbol (libc, __v2siglongjmp, siglongjmp, GLIBC_2_19); +#endif /* ifndef __v2__longjmp */ diff --git a/sysdeps/s390/rtld-__longjmp.c b/sysdeps/s390/rtld-__longjmp.c new file mode 100644 index 0000000000..5e9f73981a --- /dev/null +++ b/sysdeps/s390/rtld-__longjmp.c @@ -0,0 +1,19 @@ +/* Copyright (C) 2013 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/>. */ + +/* Build a non-versioned object for rtld-*. */ +# include "__longjmp-common.c" diff --git a/sysdeps/s390/rtld-setjmp.S b/sysdeps/s390/rtld-setjmp.S new file mode 100644 index 0000000000..401101133b --- /dev/null +++ b/sysdeps/s390/rtld-setjmp.S @@ -0,0 +1,20 @@ +/* Extendible version of setjmp for System z + Copyright (C) 2013 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/>. */ + +/* Build a non-versioned object for rtld-*. */ +# include "setjmp-common.S" diff --git a/sysdeps/s390/s390-32/__longjmp.c b/sysdeps/s390/s390-32/__longjmp-common.c index 5d46e21923..f78ef656e5 100644 --- a/sysdeps/s390/s390-32/__longjmp.c +++ b/sysdeps/s390/s390-32/__longjmp-common.c @@ -25,7 +25,7 @@ /* Jump to the position specified by ENV, causing the setjmp call there to return VAL, or 1 if VAL is 0. */ -void +attribute_hidden void __longjmp (__jmp_buf env, int val) { #ifdef PTR_DEMANGLE diff --git a/sysdeps/s390/s390-32/setjmp.S b/sysdeps/s390/s390-32/setjmp-common.S index b8a0296b02..d7bb720454 100644 --- a/sysdeps/s390/s390-32/setjmp.S +++ b/sysdeps/s390/s390-32/setjmp-common.S @@ -27,24 +27,24 @@ ENTRY (setjmp) .weak C_SYMBOL_NAME (setjmp) lhi %r3,1 /* second argument of one */ - j .Linternal_sigsetjmp /* branch relativ to __sigsetjmp */ + j 0f /* branch relativ to __sigsetjmp */ END (setjmp) /* Binary compatibility entry point. */ ENTRY(_setjmp) .weak C_SYMBOL_NAME (_setjmp) lhi %r3,0 /* second argument of zero */ - j .Linternal_sigsetjmp /* branch relativ to __sigsetjmp */ + j 0f /* branch relativ to __sigsetjmp */ END (_setjmp) libc_hidden_def (_setjmp) ENTRY(__setjmp) lhi %r3,0 /* second argument of zero */ - j .Linternal_sigsetjmp /* branch relativ to __sigsetjmp */ + j 0f /* branch relativ to __sigsetjmp */ END (__setjmp) ENTRY(__sigsetjmp) -.Linternal_sigsetjmp: +0: #ifdef PTR_MANGLE stm %r6,%r13,0(%r2) /* store registers in jmp_buf */ lr %r4,%r14 @@ -55,6 +55,10 @@ ENTRY(__sigsetjmp) #else stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ #endif +#ifndef __V1_JMPBUF + lhi %r4,0 + st %r4,56(%r2) /* Set __flags to 0. */ +#endif std %f4,40(%r2) std %f6,48(%r2) #if defined NOT_IN_libc && defined IS_IN_rtld @@ -66,15 +70,15 @@ ENTRY(__sigsetjmp) we can't save and restore our caller's value. Instead, we do an indirect jump through the GOT. */ basr %r1,0 -.L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */ - /* get address of __sigjmp_save from got */ +0: al %r1,1f-0b(0,%r1) /* get address of global offset table */ + /* get address of __sigjmp_save from got */ l %r1,__sigjmp_save@GOT12(0,%r1) br %r1 -.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0 +1: .long _GLOBAL_OFFSET_TABLE_ - 0b #else basr %r1,0 -.L0: l %r1,.L1-.L0(0,%r1) /* load address of __sigjmp_save */ - br %r1 /* tail-call __sigjmp_save */ -.L1: .long __sigjmp_save +0: l %r1,1f-0b(0,%r1) /* load address of __sigjmp_save */ + br %r1 /* tail-call __sigjmp_save */ +1: .long __sigjmp_save #endif END (__sigsetjmp) diff --git a/sysdeps/s390/s390-64/__longjmp.c b/sysdeps/s390/s390-64/__longjmp-common.c index 168ebf562b..46cabb67bc 100644 --- a/sysdeps/s390/s390-64/__longjmp.c +++ b/sysdeps/s390/s390-64/__longjmp-common.c @@ -25,7 +25,7 @@ /* Jump to the position specified by ENV, causing the setjmp call there to return VAL, or 1 if VAL is 0. */ -void +attribute_hidden void __longjmp (__jmp_buf env, int val) { #ifdef PTR_DEMANGLE diff --git a/sysdeps/s390/s390-64/setjmp.S b/sysdeps/s390/s390-64/setjmp-common.S index 5462dab277..9cdcae45c5 100644 --- a/sysdeps/s390/s390-64/setjmp.S +++ b/sysdeps/s390/s390-64/setjmp-common.S @@ -27,24 +27,24 @@ ENTRY (setjmp) .weak C_SYMBOL_NAME (setjmp) lghi %r3,1 /* Second argument of one. */ - j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ + j 0f /* Branch relativ to __sigsetjmp. */ END (setjmp) /* Binary compatibility entry point. */ ENTRY(_setjmp) .weak C_SYMBOL_NAME (_setjmp) slgr %r3,%r3 /* Second argument of zero. */ - j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ -END (setjmp) + j 0f /* Branch relativ to __sigsetjmp. */ +END (_setjmp) libc_hidden_def (_setjmp) ENTRY(__setjmp) slgr %r3,%r3 /* Second argument of zero. */ - j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ -END (setjmp) + j 0f /* Branch relativ to __sigsetjmp. */ +END (__setjmp) ENTRY(__sigsetjmp) -.Linternal_sigsetjmp: +0: #ifdef PTR_MANGLE stmg %r6,%r13,0(%r2) /* Store registers in jmp_buf. */ lgr %r4,%r14 @@ -55,6 +55,10 @@ ENTRY(__sigsetjmp) #else stmg %r6,%r15,0(%r2) /* Store registers in jmp_buf. */ #endif +#ifndef __V1_JMPBUF + lghi %r4,0 + stg %r4,144(%r2) /* Set __flags to 0. */ +#endif std %f8,80(%r2) std %f9,88(%r2) std %f10,96(%r2) diff --git a/sysdeps/s390/setjmp.S b/sysdeps/s390/setjmp.S new file mode 100644 index 0000000000..2ec621a2a0 --- /dev/null +++ b/sysdeps/s390/setjmp.S @@ -0,0 +1,64 @@ +/* Extendible version of setjmp for System z + Copyright (C) 2013 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 <libc-symbols.h> +#include <shlib-compat.h> + +versioned_symbol (libc, __v2setjmp, setjmp, GLIBC_2_19) +versioned_symbol (libc, __v2_setjmp, _setjmp, GLIBC_2_19) +versioned_symbol (libc, __v2__setjmp, __setjmp, GLIBC_2_19) +versioned_symbol (libc, __v2__sigsetjmp, __sigsetjmp, GLIBC_2_19) +#define setjmp __v2setjmp +#define _setjmp __v2_setjmp +#define __setjmp __v2__setjmp +#define __sigsetjmp __v2__sigsetjmp +#define __sigjmp_save __v2__sigjmp_save + +#include "setjmp-common.S" + +#undef setjmp +#undef _setjmp +#undef __setjmp +#undef __sigsetjmp +#undef __sigjmp_save +libc_hidden_ver (__v2setjmp, setjmp) +libc_hidden_ver (__v2_setjmp, _setjmp) +libc_hidden_ver (__v2__setjmp, __setjmp) +libc_hidden_ver (__v2__sigsetjmp, __sigsetjmp) + +#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) +compat_symbol (libc, __v1setjmp, setjmp, GLIBC_2_0) +compat_symbol (libc, __v1_setjmp, _setjmp, GLIBC_2_0) +compat_symbol (libc, __v1__setjmp, __setjmp, GLIBC_2_0) +compat_symbol (libc, __v1__sigsetjmp, __sigsetjmp, GLIBC_2_0) +# define setjmp __v1setjmp +# define _setjmp __v1_setjmp +# define __setjmp __v1__setjmp +# define __sigsetjmp __v1__sigsetjmp +# define __sigjmp_save __v1__sigjmp_save +# define __V1_JMPBUF + +# include "setjmp-common.S" + +# undef setjmp +# undef _setjmp +# undef __setjmp +# undef __sigsetjmp +# undef __sigjmp_save + +#endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) */ diff --git a/sysdeps/s390/sigjmp.c b/sysdeps/s390/sigjmp.c new file mode 100644 index 0000000000..f7b5a6f6c4 --- /dev/null +++ b/sysdeps/s390/sigjmp.c @@ -0,0 +1,34 @@ +/* Copyright (C) 1992-2013 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 <stddef.h> +#include <setjmp.h> +#include <signal.h> + +/* This function is called by the `sigsetjmp' macro + before doing a `__setjmp' on ENV[0].__jmpbuf. + Always return zero. */ + +int +__v2__sigjmp_save (sigjmp_buf env, int savemask) +{ + env[0].__mask_was_saved = (savemask && + __sigprocmask (SIG_BLOCK, (sigset_t *) NULL, + &env[0].__saved_mask) == 0); + + return 0; +} diff --git a/sysdeps/s390/v1-longjmp.c b/sysdeps/s390/v1-longjmp.c new file mode 100644 index 0000000000..82252c901e --- /dev/null +++ b/sysdeps/s390/v1-longjmp.c @@ -0,0 +1,57 @@ +/* Copyright (C) 2013 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/>. + + Versioned copy of sysdeps/generic/longjmp.c modified for extended + jmpbuf. */ + +#include <shlib-compat.h> +#include <stddef.h> +#include <signal.h> +#include "v1-setjmp.h" + +#if !defined NOT_INT_libc && defined SHARED +# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) + +void +__v1__libc_siglongjmp (__v1__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. */ + __v1__longjmp (env[0].__jmpbuf, val ?: 1); +} + +# ifndef __v1__longjmp +strong_alias (__v1__libc_siglongjmp, __v1__libc_longjmp) +libc_hidden_def (__v1__libc_longjmp) +weak_alias (__v1__libc_siglongjmp, __v1_longjmp) +weak_alias (__v1__libc_siglongjmp, __v1longjmp) +weak_alias (__v1__libc_siglongjmp, __v1siglongjmp) + +compat_symbol (libc, __v1_longjmp, _longjmp, GLIBC_2_0); +compat_symbol (libc, __v1longjmp, longjmp, GLIBC_2_0); +compat_symbol (libc, __v1siglongjmp, siglongjmp, GLIBC_2_0); + +# endif /* ifndef __v1__longjmp */ +# endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) */ +#endif /* if !defined NOT_INT_libc && defined SHARED */ diff --git a/sysdeps/s390/v1-setjmp.h b/sysdeps/s390/v1-setjmp.h new file mode 100644 index 0000000000..a4a6b7640f --- /dev/null +++ b/sysdeps/s390/v1-setjmp.h @@ -0,0 +1,111 @@ +/* Copyright (C) 1991-2013 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/>. */ + +/* + * ISO C99 Standard: 7.13 Nonlocal jumps <setjmp.h> + */ + +#ifndef _V1_SETJMP_H +#define _V1_SETJMP_H 1 + +#include <features.h> + +__BEGIN_DECLS + +#define __V1_JMPBUF +#define _SETJMP_H +#include <bits/setjmp.h> /* Get `__jmp_buf'. */ + +#ifndef _ASM + +#include <bits/sigset.h> /* Get `__sigset_t'. */ + + +/* Calling environment, plus possibly a saved signal mask. */ +typedef struct __v1__jmp_buf_tag + { + /* NOTE: The machine-dependent definitions of `__sigsetjmp' + assume that a `jmp_buf' begins with a `__jmp_buf' and that + `__mask_was_saved' follows it. Do not move these members + or add others before it. */ + __jmp_buf __jmpbuf; /* Calling environment. */ + int __mask_was_saved; /* Saved the signal mask? */ + __sigset_t __saved_mask; /* Saved signal mask. */ + } __v1__jmp_buf[1]; + + +/* Store the calling environment in ENV, also saving the signal mask. + Return 0. */ +extern int __v1setjmp (__v1__jmp_buf __env); + +/* Store the calling environment in ENV, also saving the + signal mask if SAVEMASK is nonzero. Return 0. + This is the internal name for `sigsetjmp'. */ +extern int __v1__sigsetjmp (struct __v1__jmp_buf_tag __env[1], + int __savemask); + +/* Store the calling environment in ENV, not saving the signal mask. + Return 0. */ +extern int __v1_setjmp (struct __v1__jmp_buf_tag __env[1]); + +/* Jump to the environment saved in ENV, making the + `setjmp' call there return VAL, or 1 if VAL is 0. */ +extern void __v1longjmp (struct __v1__jmp_buf_tag __env[1], int __val) + __attribute__ ((__noreturn__)); + +/* Same. Usually `_longjmp' is used with `_setjmp', which does not save + the signal mask. But it is how ENV was saved that determines whether + `longjmp' restores the mask; `_longjmp' is just an alias. */ +extern void __v1_longjmp (struct __v1__jmp_buf_tag __env[1], int __val) + __attribute__ ((__noreturn__)); + +/* Use the same type for `jmp_buf' and `sigjmp_buf'. + The `__mask_was_saved' flag determines whether + or not `longjmp' will restore the signal mask. */ +typedef struct __v1__jmp_buf_tag __v1__sigjmp_buf[1]; + +/* Jump to the environment saved in ENV, making the + sigsetjmp call there return VAL, or 1 if VAL is 0. + Restore the signal mask if that sigsetjmp call saved it. + This is just an alias `longjmp'. */ +extern void __v1siglongjmp (__v1__sigjmp_buf __env, int __val) + __attribute__ ((__noreturn__)); + +/* Internal machine-dependent function to restore context sans signal mask. */ +extern void __v1__longjmp (__jmp_buf __env, int __val) + __attribute__ ((__noreturn__)); + +/* Internal function to possibly save the current mask of blocked signals + in ENV, and always set the flag saying whether or not it was saved. + This is used by the machine-dependent definition of `__sigsetjmp'. + Always returns zero, for convenience. */ +extern int __v1__sigjmp_save (__v1__jmp_buf __env, int __savemask); + +extern void _longjmp_unwind (__v1__jmp_buf env, int val); + +extern void __v1__libc_siglongjmp (__v1__sigjmp_buf env, int val) + __attribute__ ((noreturn)); + +extern void __v1__libc_longjmp (__v1__sigjmp_buf env, int val) + __attribute__ ((noreturn)); + +libc_hidden_proto (__v1__libc_longjmp) +libc_hidden_proto (__v1_setjmp) +libc_hidden_proto (__v1__sigsetjmp) +#endif /* !_ASM */ + +#endif /* ifndef _V1_SETJMP_H */ diff --git a/sysdeps/s390/v1-sigjmp.c b/sysdeps/s390/v1-sigjmp.c new file mode 100644 index 0000000000..b624d16851 --- /dev/null +++ b/sysdeps/s390/v1-sigjmp.c @@ -0,0 +1,44 @@ +/* Copyright (C) 1992-2013 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/>. + + Copied from setjmp/sigjmp.c for extending jmp_buf. */ + +#include <bits/wordsize.h> +#include <shlib-compat.h> + +#if !defined NOT_IN_libc && defined SHARED +# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) +# include <stddef.h> +# include <v1-setjmp.h> +# include <signal.h> + +/* This function is called by the `sigsetjmp' macro + before doing a `__setjmp' on ENV[0].__jmpbuf. + Always return zero. */ + +int +__v1__sigjmp_save (__v1__sigjmp_buf env, int savemask) +{ + env[0].__mask_was_saved = (savemask && + __sigprocmask (SIG_BLOCK, (sigset_t *) NULL, + &env[0].__saved_mask) == 0); + + return 0; +} + +# endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) */ +#endif /* !NOT_IN_libc && SHARED */ |