diff options
Diffstat (limited to 'REORG.TODO/setjmp')
| -rw-r--r-- | REORG.TODO/setjmp/Makefile | 37 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/Versions | 16 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/__longjmp.c | 34 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/bits/setjmp2.h | 40 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/bsd-_setjmp.c | 34 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/bsd-setjmp.c | 33 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/bug269-setjmp.c | 106 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/jmp-unwind.c | 28 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/jmpbug.c | 41 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/longjmp.c | 47 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/setjmp.c | 35 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/setjmp.h | 105 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/sigjmp.c | 34 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/tst-setjmp-fp.c | 105 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/tst-setjmp-static.c | 1 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/tst-setjmp.c | 120 | ||||
| -rw-r--r-- | REORG.TODO/setjmp/tst-sigsetjmp.c | 44 |
17 files changed, 860 insertions, 0 deletions
diff --git a/REORG.TODO/setjmp/Makefile b/REORG.TODO/setjmp/Makefile new file mode 100644 index 0000000000..ca80b8ea13 --- /dev/null +++ b/REORG.TODO/setjmp/Makefile @@ -0,0 +1,37 @@ +# Copyright (C) 1991-2017 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/>. + +# +# Makefile for setjmp/longjmp routines +# +subdir := setjmp + +include ../Makeconfig + +headers := setjmp.h bits/setjmp.h bits/setjmp2.h + +routines := setjmp sigjmp bsd-setjmp bsd-_setjmp \ + longjmp __longjmp jmp-unwind + +tests := tst-setjmp jmpbug bug269-setjmp tst-setjmp-fp \ + tst-sigsetjmp tst-setjmp-static +tests-static := tst-setjmp-static + + +include ../Rules + +$(objpfx)tst-setjmp-fp: $(libm) diff --git a/REORG.TODO/setjmp/Versions b/REORG.TODO/setjmp/Versions new file mode 100644 index 0000000000..2baa49ae8a --- /dev/null +++ b/REORG.TODO/setjmp/Versions @@ -0,0 +1,16 @@ +libc { + GLIBC_2.0 { + # functions with special/multiple interfaces + _longjmp; __sigsetjmp; _setjmp; + + # l* + longjmp; + + # s* + setjmp; + } + GLIBC_PRIVATE { + # helper functions + __libc_longjmp; __libc_siglongjmp; + } +} diff --git a/REORG.TODO/setjmp/__longjmp.c b/REORG.TODO/setjmp/__longjmp.c new file mode 100644 index 0000000000..72b27b6aa3 --- /dev/null +++ b/REORG.TODO/setjmp/__longjmp.c @@ -0,0 +1,34 @@ +/* Copyright (C) 1991-2017 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 <errno.h> +#include <setjmp.h> + + +/* Jump to the position specified by ENV, causing the + setjmp call there to return VAL, or 1 if VAL is 0. */ +void +__longjmp (__jmp_buf env, int val) +{ + if (val == 0) + val = 1; + + __set_errno (ENOSYS); + /* No way to signal failure. */ +} + +stub_warning (longjmp) diff --git a/REORG.TODO/setjmp/bits/setjmp2.h b/REORG.TODO/setjmp/bits/setjmp2.h new file mode 100644 index 0000000000..83dc006774 --- /dev/null +++ b/REORG.TODO/setjmp/bits/setjmp2.h @@ -0,0 +1,40 @@ +/* Checking macros for setjmp functions. + Copyright (C) 2009-2017 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/>. */ + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp2.h> directly; use <setjmp.h> instead." +#endif + +/* Variant of the longjmp functions which perform some sanity checking. */ +#ifdef __REDIRECT_NTH +extern void __REDIRECT_NTHNL (longjmp, + (struct __jmp_buf_tag __env[1], int __val), + __longjmp_chk) __attribute__ ((__noreturn__)); +extern void __REDIRECT_NTHNL (_longjmp, + (struct __jmp_buf_tag __env[1], int __val), + __longjmp_chk) __attribute__ ((__noreturn__)); +extern void __REDIRECT_NTHNL (siglongjmp, + (struct __jmp_buf_tag __env[1], int __val), + __longjmp_chk) __attribute__ ((__noreturn__)); +#else +extern void __longjmp_chk (struct __jmp_buf_tag __env[1], int __val), + __THROWNL __attribute__ ((__noreturn__)); +# define longjmp __longjmp_chk +# define _longjmp __longjmp_chk +# define siglongjmp __longjmp_chk +#endif diff --git a/REORG.TODO/setjmp/bsd-_setjmp.c b/REORG.TODO/setjmp/bsd-_setjmp.c new file mode 100644 index 0000000000..cf5963cf49 --- /dev/null +++ b/REORG.TODO/setjmp/bsd-_setjmp.c @@ -0,0 +1,34 @@ +/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. Stub version. + Copyright (C) 1994-2017 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 <sysdep.h> +#include <setjmp.h> + +#undef _setjmp + +/* This implementation in C will not usually work, because the call + really needs to be a tail-call so __sigsetjmp saves the state of + the caller, not the state of this `setjmp' frame which then + immediate unwinds. */ + +int +_setjmp (jmp_buf env) +{ + return __sigsetjmp (env, 0); +} +libc_hidden_def (_setjmp) diff --git a/REORG.TODO/setjmp/bsd-setjmp.c b/REORG.TODO/setjmp/bsd-setjmp.c new file mode 100644 index 0000000000..e2a6e51602 --- /dev/null +++ b/REORG.TODO/setjmp/bsd-setjmp.c @@ -0,0 +1,33 @@ +/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. Stub version. + Copyright (C) 1994-2017 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 <sysdep.h> +#include <setjmp.h> + +#undef setjmp + +/* This implementation in C will not usually work, because the call + really needs to be a tail-call so __sigsetjmp saves the state of + the caller, not the state of this `setjmp' frame which then + immediate unwinds. */ + +int +setjmp (jmp_buf env) +{ + return __sigsetjmp (env, 1); +} diff --git a/REORG.TODO/setjmp/bug269-setjmp.c b/REORG.TODO/setjmp/bug269-setjmp.c new file mode 100644 index 0000000000..3d1a73776c --- /dev/null +++ b/REORG.TODO/setjmp/bug269-setjmp.c @@ -0,0 +1,106 @@ +/* Copyright (C) 2004-2017 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/>. */ + +/* Test case for Bugzilla # 269 */ + +#include <stdio.h> +#include <setjmp.h> +#include <stdlib.h> + +jmp_buf buf1; +jmp_buf buf2; +int *p; +int n_x = 6; + +static int g_counter = 0; + +int +f (void) +{ + static int counter = 0; + static int way_point1 = 3; + static int way_point2 = 2; + int lose = 0; + + if (setjmp (buf1) != 101) + { + int a[n_x]; /* reallocate stack space */ + g_counter++; + p = &a[0]; + if (g_counter < 5) + longjmp (buf1, 2); + else if (g_counter == 5) + longjmp (buf1, 101); + else + { + _setjmp (buf2); + _longjmp (buf1, 101); + } + } + + way_point1--; + + if (counter == 0) + { + counter++; + { + int a[n_x]; /* reallocate stack space */ + g_counter++; + p = &a[0]; + if (g_counter < 5) + longjmp (buf1, 2); + else if (g_counter == 5) + longjmp (buf1, 101); + else + { + _setjmp (buf2); + _longjmp (buf1, 101); + } + } + } + + way_point2--; + + if (counter == 1) + { + counter++; + longjmp (buf2, 2); + } + + lose = !(way_point1 == 0 && way_point2 == 0 + && g_counter == 6 && counter == 2); + + return lose; +} + +static int +do_test (void) +{ + int lose; + + lose = f (); + + if (lose) + puts ("Test FAILED!"); + else + puts ("Test succeeded!"); + + return lose ? EXIT_FAILURE : EXIT_SUCCESS; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" diff --git a/REORG.TODO/setjmp/jmp-unwind.c b/REORG.TODO/setjmp/jmp-unwind.c new file mode 100644 index 0000000000..a43db84b9d --- /dev/null +++ b/REORG.TODO/setjmp/jmp-unwind.c @@ -0,0 +1,28 @@ +/* _longjmp_unwind -- Clean up stack frames unwound by longjmp. Stub version. + Copyright (C) 1995-2017 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 <setjmp.h> + +void +_longjmp_unwind (jmp_buf env, int val) +{ + + /* This function can perform any cleanups necessary to safely unwind the + stack frames around the current context which ENV unwinds past. */ + +} diff --git a/REORG.TODO/setjmp/jmpbug.c b/REORG.TODO/setjmp/jmpbug.c new file mode 100644 index 0000000000..8594c5a8a7 --- /dev/null +++ b/REORG.TODO/setjmp/jmpbug.c @@ -0,0 +1,41 @@ +/* setjmp vs alloca test case. Exercised bug on sparc. */ + +#include <stdio.h> +#include <setjmp.h> +#include <alloca.h> + +static void +sub5 (jmp_buf buf) +{ + longjmp (buf, 1); +} + +static void +test (int x) +{ + jmp_buf buf; + char *volatile foo; + int arr[100]; + + arr[77] = x; + if (setjmp (buf)) + { + printf ("made it ok; %d\n", arr[77]); + return; + } + + foo = (char *) alloca (128); + (void) foo; + sub5 (buf); +} + +int +main (void) +{ + int i; + + for (i = 123; i < 345; ++i) + test (i); + + return 0; +} diff --git a/REORG.TODO/setjmp/longjmp.c b/REORG.TODO/setjmp/longjmp.c new file mode 100644 index 0000000000..2453c2c124 --- /dev/null +++ b/REORG.TODO/setjmp/longjmp.c @@ -0,0 +1,47 @@ +/* Copyright (C) 1991-2017 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> + + +/* 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 (env[0].__jmpbuf, val ?: 1); +} + +#ifndef __libc_siglongjmp +strong_alias (__libc_siglongjmp, __libc_longjmp) +libc_hidden_def (__libc_longjmp) +weak_alias (__libc_siglongjmp, _longjmp) +weak_alias (__libc_siglongjmp, longjmp) +weak_alias (__libc_siglongjmp, siglongjmp) +#endif diff --git a/REORG.TODO/setjmp/setjmp.c b/REORG.TODO/setjmp/setjmp.c new file mode 100644 index 0000000000..375e10f375 --- /dev/null +++ b/REORG.TODO/setjmp/setjmp.c @@ -0,0 +1,35 @@ +/* Copyright (C) 1991-2017 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 <errno.h> +#include <setjmp.h> + + +/* Save the current program position in ENV and return 0. */ +int +__libc_sigsetjmp (jmp_buf env, int savemask) +{ + /* Save the signal mask if requested. */ + __sigjmp_save (env, savemask); + + __set_errno (ENOSYS); + /* No way to signal failure. */ + return 0; +} + +weak_alias (__libc_sigsetjmp, __sigsetjmp) +stub_warning (__sigsetjmp) diff --git a/REORG.TODO/setjmp/setjmp.h b/REORG.TODO/setjmp/setjmp.h new file mode 100644 index 0000000000..86fb2edf6c --- /dev/null +++ b/REORG.TODO/setjmp/setjmp.h @@ -0,0 +1,105 @@ +/* Copyright (C) 1991-2017 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 _SETJMP_H +#define _SETJMP_H 1 + +#include <features.h> + +__BEGIN_DECLS + +#include <bits/setjmp.h> /* Get `__jmp_buf'. */ +#include <bits/types/__sigset_t.h> + +/* Calling environment, plus possibly a saved signal mask. */ +struct __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. */ + }; + + +typedef struct __jmp_buf_tag jmp_buf[1]; + +/* Store the calling environment in ENV, also saving the signal mask. + Return 0. */ +extern int setjmp (jmp_buf __env) __THROWNL; + +/* 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 __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROWNL; + +/* Store the calling environment in ENV, not saving the signal mask. + Return 0. */ +extern int _setjmp (struct __jmp_buf_tag __env[1]) __THROWNL; + +/* Do not save the signal mask. This is equivalent to the `_setjmp' + BSD function. */ +#define setjmp(env) _setjmp (env) + + +/* Jump to the environment saved in ENV, making the + `setjmp' call there return VAL, or 1 if VAL is 0. */ +extern void longjmp (struct __jmp_buf_tag __env[1], int __val) + __THROWNL __attribute__ ((__noreturn__)); + +#if defined __USE_MISC || defined __USE_XOPEN +/* 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 _longjmp (struct __jmp_buf_tag __env[1], int __val) + __THROWNL __attribute__ ((__noreturn__)); +#endif + + +#ifdef __USE_POSIX +/* 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 __jmp_buf_tag sigjmp_buf[1]; + +/* Store the calling environment in ENV, also saving the + signal mask if SAVEMASK is nonzero. Return 0. */ +# define sigsetjmp(env, savemask) __sigsetjmp (env, savemask) + +/* 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 siglongjmp (sigjmp_buf __env, int __val) + __THROWNL __attribute__ ((__noreturn__)); +#endif /* Use POSIX. */ + + +/* Define helper functions to catch unsafe code. */ +#if __USE_FORTIFY_LEVEL > 0 +# include <bits/setjmp2.h> +#endif + +__END_DECLS + +#endif /* setjmp.h */ diff --git a/REORG.TODO/setjmp/sigjmp.c b/REORG.TODO/setjmp/sigjmp.c new file mode 100644 index 0000000000..30839ae819 --- /dev/null +++ b/REORG.TODO/setjmp/sigjmp.c @@ -0,0 +1,34 @@ +/* Copyright (C) 1992-2017 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 +__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/REORG.TODO/setjmp/tst-setjmp-fp.c b/REORG.TODO/setjmp/tst-setjmp-fp.c new file mode 100644 index 0000000000..99a9cbb5a3 --- /dev/null +++ b/REORG.TODO/setjmp/tst-setjmp-fp.c @@ -0,0 +1,105 @@ +/* Test that setjmp/longjmp do not save and restore floating-point + exceptions and rounding modes. + Copyright (C) 2013-2017 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 <fenv.h> +#include <setjmp.h> +#include <stdio.h> +#include <stdlib.h> + +static jmp_buf __attribute__ ((unused)) env; +static int result = 0; + +#if defined FE_TONEAREST && defined FE_TOWARDZERO +static int expected_rounding_mode = FE_TONEAREST; + +static void +change_rounding_mode (void) +{ + if (fesetround (FE_TOWARDZERO) == 0) + expected_rounding_mode = FE_TOWARDZERO; + else + puts ("fesetround (FE_TOWARDZERO) failed, continuing test"); + longjmp (env, 1); +} +#endif + +#ifdef FE_INVALID +static int expected_exceptions = 0; + +static void +raise_exception (void) +{ + if (feraiseexcept (FE_INVALID) == 0) + expected_exceptions = FE_INVALID; + else + puts ("feraiseexcept (FE_INVALID) failed, continuing test"); + longjmp (env, 1); +} +#endif + +static int +do_test (void) +{ +#if defined FE_TONEAREST && defined FE_TOWARDZERO + if (fesetround (FE_TONEAREST) == 0) + { + if (setjmp (env) == 0) + change_rounding_mode (); + else + { + if (fegetround () == expected_rounding_mode) + puts ("PASS: longjmp preserved rounding mode"); + else + { + puts ("FAIL: longjmp changed rounding mode"); + result = 1; + } + } + } + else + puts ("fesetround (FE_TONEAREST) failed, not testing rounding modes"); +#else + puts ("rounding mode test not supported"); +#endif +#ifdef FE_INVALID + if (feclearexcept (FE_ALL_EXCEPT) == 0) + { + if (setjmp (env) == 0) + raise_exception (); + else + { + if (fetestexcept (FE_INVALID) == expected_exceptions) + puts ("PASS: longjmp preserved exceptions"); + else + { + puts ("FAIL: longjmp changed exceptions"); + result = 1; + } + } + } + else + puts ("feclearexcept (FE_ALL_EXCEPT) failed, not testing exceptions"); +#else + puts ("exception test not supported"); +#endif + return result; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" diff --git a/REORG.TODO/setjmp/tst-setjmp-static.c b/REORG.TODO/setjmp/tst-setjmp-static.c new file mode 100644 index 0000000000..5ca5df8cb4 --- /dev/null +++ b/REORG.TODO/setjmp/tst-setjmp-static.c @@ -0,0 +1 @@ +#include "tst-setjmp.c" diff --git a/REORG.TODO/setjmp/tst-setjmp.c b/REORG.TODO/setjmp/tst-setjmp.c new file mode 100644 index 0000000000..2661f21a64 --- /dev/null +++ b/REORG.TODO/setjmp/tst-setjmp.c @@ -0,0 +1,120 @@ +/* Copyright (C) 1991-2017 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 <stdio.h> +#include <setjmp.h> +#include <stdlib.h> + +static jmp_buf env; +static int last_value = -1, lose = 0; + +static void +jump (int val) +{ + longjmp (env, val); +} + +static int +do_test (void) +{ + int value; + + value = setjmp (env); + if (value != last_value + 1) + { + fputs("Shouldn't have ", stdout); + lose = 1; + } + last_value = value; + switch (value) + { + case 0: + puts("Saved environment."); + jump (0); + default: + printf ("Jumped to %d.\n", value); + if (value < 10) + jump (value + 1); + } + + if (!lose && value == 10) + { + /* Do a second test, this time without `setjmp' being a macro. + This is not required by ISO C but we have this for compatibility. */ +#undef setjmp + extern int setjmp (jmp_buf); + + last_value = -1; + lose = 0; + + value = setjmp (env); + if (value != last_value + 1) + { + fputs("Shouldn't have ", stdout); + lose = 1; + } + last_value = value; + switch (value) + { + case 0: + puts("Saved environment."); + jump (0); + default: + printf ("Jumped to %d.\n", value); + if (value < 10) + jump (value + 1); + } + } + + if (!lose && value == 10) + { + /* And again for the `_setjmp' function. */ +#ifndef _setjmp + extern int _setjmp (jmp_buf); +#endif + last_value = -1; + lose = 0; + + value = _setjmp (env); + if (value != last_value + 1) + { + fputs("Shouldn't have ", stdout); + lose = 1; + } + last_value = value; + switch (value) + { + case 0: + puts("Saved environment."); + jump (0); + default: + printf ("Jumped to %d.\n", value); + if (value < 10) + jump (value + 1); + } + } + + if (lose || value != 10) + puts ("Test FAILED!"); + else + puts ("Test succeeded!"); + + return lose ? EXIT_FAILURE : EXIT_SUCCESS; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" diff --git a/REORG.TODO/setjmp/tst-sigsetjmp.c b/REORG.TODO/setjmp/tst-sigsetjmp.c new file mode 100644 index 0000000000..6c6cdf4fca --- /dev/null +++ b/REORG.TODO/setjmp/tst-sigsetjmp.c @@ -0,0 +1,44 @@ +/* Copyright (C) 2013-2017 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/>. */ + +/* Test case for BZ #15493 */ + +#include <stdlib.h> +#include <signal.h> +#include <setjmp.h> + +static int +do_test (void) +{ + sigjmp_buf sj; + sigset_t m; + + sigemptyset (&m); + sigprocmask (SIG_SETMASK, &m, NULL); + if (sigsetjmp (sj, 0) == 0) + { + sigaddset (&m, SIGUSR1); + sigprocmask (SIG_SETMASK, &m, NULL); + siglongjmp (sj, 1); + return EXIT_FAILURE; + } + sigprocmask (SIG_SETMASK, NULL, &m); + return sigismember (&m, SIGUSR1) ? EXIT_SUCCESS : EXIT_FAILURE; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |