diff options
Diffstat (limited to 'libsigsegv/tests')
| -rw-r--r-- | libsigsegv/tests/Makefile.am | 34 | ||||
| -rw-r--r-- | libsigsegv/tests/Makefile.in | 612 | ||||
| -rw-r--r-- | libsigsegv/tests/mmaputil.h | 105 | ||||
| -rw-r--r-- | libsigsegv/tests/sigsegv1.c | 111 | ||||
| -rw-r--r-- | libsigsegv/tests/sigsegv2.c | 150 | ||||
| -rw-r--r-- | libsigsegv/tests/sigsegv3.c | 134 | ||||
| -rw-r--r-- | libsigsegv/tests/stackoverflow1.c | 147 | ||||
| -rw-r--r-- | libsigsegv/tests/stackoverflow2.c | 198 |
8 files changed, 0 insertions, 1491 deletions
diff --git a/libsigsegv/tests/Makefile.am b/libsigsegv/tests/Makefile.am deleted file mode 100644 index 45615fed..00000000 --- a/libsigsegv/tests/Makefile.am +++ /dev/null @@ -1,34 +0,0 @@ -## Makefile for libsigsegv/tests. -## Copyright (C) 2002-2003, 2008-2009 Bruno Haible <bruno@clisp.org> -## -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2, 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 General Public License for more details. -## -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, -## USA. - -## Process this file with automake to produce Makefile.in. - -AUTOMAKE_OPTIONS = 1.11 gnits no-dependencies color-tests - -TESTS = sigsegv1 sigsegv2 sigsegv3 stackoverflow1 stackoverflow2 - -EXTRA_DIST = mmaputil.h - -INCLUDES = -I../src -DEFS = @DEFS@ -LDADD = ../src/libsigsegv.la -noinst_PROGRAMS = sigsegv1 sigsegv2 sigsegv3 stackoverflow1 stackoverflow2 - -# The following rule is necessary to avoid a toplevel "make -n" failure. -../src/libsigsegv.la : - cd ../src && $(MAKE) libsigsegv.la diff --git a/libsigsegv/tests/Makefile.in b/libsigsegv/tests/Makefile.in deleted file mode 100644 index 91dc9e24..00000000 --- a/libsigsegv/tests/Makefile.in +++ /dev/null @@ -1,612 +0,0 @@ -# Makefile.in generated by automake 1.11 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, -# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, -# Inc. -# This Makefile.in is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; without -# even the implied warranty of MERCHANTABILITY or FITNESS FOR A -# PARTICULAR PURPOSE. - -@SET_MAKE@ - -VPATH = @srcdir@ -pkgdatadir = $(datadir)/@PACKAGE@ -pkgincludedir = $(includedir)/@PACKAGE@ -pkglibdir = $(libdir)/@PACKAGE@ -pkglibexecdir = $(libexecdir)/@PACKAGE@ -am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd -install_sh_DATA = $(install_sh) -c -m 644 -install_sh_PROGRAM = $(install_sh) -c -install_sh_SCRIPT = $(install_sh) -c -INSTALL_HEADER = $(INSTALL_DATA) -transform = $(program_transform_name) -NORMAL_INSTALL = : -PRE_INSTALL = : -POST_INSTALL = : -NORMAL_UNINSTALL = : -PRE_UNINSTALL = : -POST_UNINSTALL = : -build_triplet = @build@ -host_triplet = @host@ -TESTS = sigsegv1$(EXEEXT) sigsegv2$(EXEEXT) sigsegv3$(EXEEXT) \ - stackoverflow1$(EXEEXT) stackoverflow2$(EXEEXT) -noinst_PROGRAMS = sigsegv1$(EXEEXT) sigsegv2$(EXEEXT) \ - sigsegv3$(EXEEXT) stackoverflow1$(EXEEXT) \ - stackoverflow2$(EXEEXT) -subdir = tests -DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in -ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 -am__aclocal_m4_deps = $(top_srcdir)/m4/bold.m4 \ - $(top_srcdir)/m4/fault.m4 $(top_srcdir)/m4/getpagesize.m4 \ - $(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltoptions.m4 \ - $(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \ - $(top_srcdir)/m4/lt~obsolete.m4 $(top_srcdir)/m4/mmap-anon.m4 \ - $(top_srcdir)/m4/relocatable.m4 \ - $(top_srcdir)/m4/sigaltstack-longjmp.m4 \ - $(top_srcdir)/m4/sigaltstack-siglongjmp.m4 \ - $(top_srcdir)/m4/sigaltstack.m4 $(top_srcdir)/configure.ac -am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ - $(ACLOCAL_M4) -mkinstalldirs = $(install_sh) -d -CONFIG_HEADER = $(top_builddir)/config.h -CONFIG_CLEAN_FILES = -CONFIG_CLEAN_VPATH_FILES = -PROGRAMS = $(noinst_PROGRAMS) -sigsegv1_SOURCES = sigsegv1.c -sigsegv1_OBJECTS = sigsegv1.$(OBJEXT) -sigsegv1_LDADD = $(LDADD) -sigsegv1_DEPENDENCIES = ../src/libsigsegv.la -sigsegv2_SOURCES = sigsegv2.c -sigsegv2_OBJECTS = sigsegv2.$(OBJEXT) -sigsegv2_LDADD = $(LDADD) -sigsegv2_DEPENDENCIES = ../src/libsigsegv.la -sigsegv3_SOURCES = sigsegv3.c -sigsegv3_OBJECTS = sigsegv3.$(OBJEXT) -sigsegv3_LDADD = $(LDADD) -sigsegv3_DEPENDENCIES = ../src/libsigsegv.la -stackoverflow1_SOURCES = stackoverflow1.c -stackoverflow1_OBJECTS = stackoverflow1.$(OBJEXT) -stackoverflow1_LDADD = $(LDADD) -stackoverflow1_DEPENDENCIES = ../src/libsigsegv.la -stackoverflow2_SOURCES = stackoverflow2.c -stackoverflow2_OBJECTS = stackoverflow2.$(OBJEXT) -stackoverflow2_LDADD = $(LDADD) -stackoverflow2_DEPENDENCIES = ../src/libsigsegv.la -DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir) -depcomp = -am__depfiles_maybe = -COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \ - $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ - --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \ - $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -CCLD = $(CC) -LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ - --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \ - $(LDFLAGS) -o $@ -SOURCES = sigsegv1.c sigsegv2.c sigsegv3.c stackoverflow1.c \ - stackoverflow2.c -DIST_SOURCES = sigsegv1.c sigsegv2.c sigsegv3.c stackoverflow1.c \ - stackoverflow2.c -ETAGS = etags -CTAGS = ctags -# If stdout is a non-dumb tty, use colors. 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you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#if defined _WIN32 && !defined __CYGWIN__ -# define HAVE_WIN32_VM -#else -# include "config.h" -#endif - -#ifdef HAVE_WIN32_VM - -/* ------------------------ Windows ------------------------ */ - -#define WIN32_LEAN_AND_MEAN /* avoid including junk */ -#include <windows.h> -#include <winerror.h> -#define PROT_NONE PAGE_NOACCESS -#define PROT_READ PAGE_READONLY -#define PROT_READ_WRITE PAGE_READWRITE - -static void * -mmap_zeromap (void *map_addr_hint, unsigned long map_len) -{ - if (VirtualAlloc ((void *)((unsigned long) map_addr_hint & -0x10000), - (((unsigned long) map_addr_hint + map_len - 1) | 0xffff) + 1 - - ((unsigned long) map_addr_hint & -0x10000), - MEM_RESERVE, PAGE_NOACCESS) - && VirtualAlloc (map_addr_hint, map_len, MEM_COMMIT, PAGE_READWRITE)) - return map_addr_hint; - else - return (void *)(-1); -} - -int munmap (void *addr, unsigned long len) -{ - if (VirtualFree (addr, len, MEM_DECOMMIT)) - return 0; - else - return -1; -} - -int mprotect (void *addr, unsigned long len, int prot) -{ - DWORD oldprot; - - if (VirtualProtect (addr, len, prot, &oldprot)) - return 0; - else - return -1; -} - -#else - -/* ------------------------ Unix ------------------------ */ - -#include <sys/types.h> -#include <sys/mman.h> - -#ifndef PROT_NONE -# define PROT_NONE 0 -#endif -#define PROT_READ_WRITE (PROT_READ|PROT_WRITE) - -#if HAVE_MMAP_ANON -# define zero_fd -1 -# define map_flags MAP_ANON | MAP_PRIVATE -#elif HAVE_MMAP_ANONYMOUS -# define zero_fd -1 -# define map_flags MAP_ANONYMOUS | MAP_PRIVATE -#elif HAVE_MMAP_DEVZERO -# include <fcntl.h> -# ifndef MAP_FILE -# define MAP_FILE 0 -# endif -static int zero_fd; -# define map_flags MAP_FILE | MAP_PRIVATE -#endif - -static void * -mmap_zeromap (void *map_addr_hint, unsigned long map_len) -{ -#ifdef __hpux - /* HP-UX 10 mmap() often fails when given a hint. So give the OS complete - freedom about the address range. */ - return (void *) mmap ((void *) 0, map_len, PROT_READ_WRITE, map_flags, zero_fd, 0); -#else - return (void *) mmap (map_addr_hint, map_len, PROT_READ_WRITE, map_flags, zero_fd, 0); -#endif -} - -#endif diff --git a/libsigsegv/tests/sigsegv1.c b/libsigsegv/tests/sigsegv1.c deleted file mode 100644 index ce006428..00000000 --- a/libsigsegv/tests/sigsegv1.c +++ /dev/null @@ -1,111 +0,0 @@ -/* Test that the handler is called, with the right fault address. - Copyright (C) 2002-2006, 2008 Bruno Haible <bruno@clisp.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef _MSC_VER -# include <config.h> -#endif - -#include "sigsegv.h" -#include <stdio.h> - -#if HAVE_SIGSEGV_RECOVERY - -#include "mmaputil.h" -#include <stdlib.h> - -unsigned long page; - -volatile int handler_called = 0; - -int -handler (void *fault_address, int serious) -{ - handler_called++; - if (handler_called > 10) - abort (); - if (fault_address != (void *)(page + 0x678)) - abort (); - if (mprotect ((void *) page, 0x4000, PROT_READ_WRITE) == 0) - return 1; - return 0; -} - -void -crasher (unsigned long p) -{ - *(volatile int *) (p + 0x678) = 42; -} - -int -main () -{ - void *p; - - /* Preparations. */ -#if !HAVE_MMAP_ANON && !HAVE_MMAP_ANONYMOUS && HAVE_MMAP_DEVZERO - zero_fd = open ("/dev/zero", O_RDONLY, 0644); -#endif - - /* Setup some mmaped memory. */ - p = mmap_zeromap ((void *) 0x12340000, 0x4000); - if (p == (void *)(-1)) - { - fprintf (stderr, "mmap_zeromap failed.\n"); - exit (2); - } - page = (unsigned long) p; - - /* Make it read-only. */ - if (mprotect ((void *) page, 0x4000, PROT_READ) < 0) - { - fprintf (stderr, "mprotect failed.\n"); - exit (2); - } - /* Test whether it's possible to make it read-write after it was read-only. - This is not possible on Cygwin. */ - if (mprotect ((void *) page, 0x4000, PROT_READ_WRITE) < 0 - || mprotect ((void *) page, 0x4000, PROT_READ) < 0) - { - fprintf (stderr, "mprotect failed.\n"); - exit (2); - } - - /* Install the SIGSEGV handler. */ - sigsegv_install_handler (&handler); - - /* The first write access should invoke the handler and then complete. */ - crasher (page); - /* The second write access should not invoke the handler. */ - crasher (page); - - /* Check that the handler was called only once. */ - if (handler_called != 1) - exit (1); - /* Test passed! */ - printf ("Test passed.\n"); - return 0; -} - -#else - -int -main () -{ - return 77; -} - -#endif diff --git a/libsigsegv/tests/sigsegv2.c b/libsigsegv/tests/sigsegv2.c deleted file mode 100644 index 39961a6a..00000000 --- a/libsigsegv/tests/sigsegv2.c +++ /dev/null @@ -1,150 +0,0 @@ -/* Test the dispatcher. - Copyright (C) 2002-2006, 2008 Bruno Haible <bruno@clisp.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef _MSC_VER -# include <config.h> -#endif - -#include "sigsegv.h" -#include <stdio.h> - -#if HAVE_SIGSEGV_RECOVERY - -#include "mmaputil.h" -#include <stdlib.h> - -static sigsegv_dispatcher dispatcher; - -static volatile unsigned int logcount = 0; -static volatile unsigned long logdata[10]; - -static int -area_handler (void *fault_address, void *user_arg) -{ - unsigned long area = *(unsigned long *)user_arg; - logdata[logcount++] = area; - if (logcount >= sizeof (logdata) / sizeof (logdata[0])) - abort (); - if (!((unsigned long)fault_address >= area - && (unsigned long)fault_address - area < 0x4000)) - abort (); - if (mprotect ((void *) area, 0x4000, PROT_READ_WRITE) == 0) - return 1; - return 0; -} - -static int -handler (void *fault_address, int serious) -{ - return sigsegv_dispatch (&dispatcher, fault_address); -} - -static void -barrier () -{ -} - -int -main () -{ - void *p; - unsigned long area1; - unsigned long area2; - unsigned long area3; - - /* Preparations. */ -#if !HAVE_MMAP_ANON && !HAVE_MMAP_ANONYMOUS && HAVE_MMAP_DEVZERO - zero_fd = open ("/dev/zero", O_RDONLY, 0644); -#endif - sigsegv_init (&dispatcher); - sigsegv_install_handler (&handler); - - /* Setup some mmaped memory. */ - - p = mmap_zeromap ((void *) 0x12340000, 0x4000); - if (p == (void *)(-1)) - { - fprintf (stderr, "mmap_zeromap failed.\n"); - exit (2); - } - area1 = (unsigned long) p; - sigsegv_register (&dispatcher, (void *) area1, 0x4000, &area_handler, &area1); - if (mprotect ((void *) area1, 0x4000, PROT_NONE) < 0) - { - fprintf (stderr, "mprotect failed.\n"); - exit (2); - } - - p = mmap_zeromap ((void *) 0x0BEE0000, 0x4000); - if (p == (void *)(-1)) - { - fprintf (stderr, "mmap_zeromap failed.\n"); - exit (2); - } - area2 = (unsigned long) p; - sigsegv_register (&dispatcher, (void *) area2, 0x4000, &area_handler, &area2); - if (mprotect ((void *) area2, 0x4000, PROT_READ) < 0) - { - fprintf (stderr, "mprotect failed.\n"); - exit (2); - } - if (mprotect ((void *) area2, 0x4000, PROT_READ_WRITE) < 0 - || mprotect ((void *) area2, 0x4000, PROT_READ) < 0) - { - fprintf (stderr, "mprotect failed.\n"); - exit (2); - } - - p = mmap_zeromap ((void *) 0x06990000, 0x4000); - if (p == (void *)(-1)) - { - fprintf (stderr, "mmap_zeromap failed.\n"); - exit (2); - } - area3 = (unsigned long) p; - sigsegv_register (&dispatcher, (void *) area3, 0x4000, &area_handler, &area3); - mprotect ((void *) area3, 0x4000, PROT_READ); - - /* This access should call the handler. */ - ((volatile int *)area2)[230] = 22; - /* This access should call the handler. */ - ((volatile int *)area3)[412] = 33; - /* This access should not give a signal. */ - ((volatile int *)area2)[135] = 22; - /* This access should call the handler. */ - ((volatile int *)area1)[612] = 11; - - barrier(); - - /* Check that the handler was called three times. */ - if (logcount != 3) - exit (1); - if (!(logdata[0] == area2 && logdata[1] == area3 && logdata[2] == area1)) - exit (1); - printf ("Test passed.\n"); - return 0; -} - -#else - -int -main () -{ - return 77; -} - -#endif diff --git a/libsigsegv/tests/sigsegv3.c b/libsigsegv/tests/sigsegv3.c deleted file mode 100644 index 1ea0ec40..00000000 --- a/libsigsegv/tests/sigsegv3.c +++ /dev/null @@ -1,134 +0,0 @@ -/* Test that the handler can be exited multiple times. - Copyright (C) 2002-2006, 2008 Bruno Haible <bruno@clisp.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef _MSC_VER -# include <config.h> -#endif - -#include "sigsegv.h" -#include <stdio.h> - -#if HAVE_SIGSEGV_RECOVERY - -#if defined _WIN32 && !defined __CYGWIN__ - /* Windows doesn't have sigset_t. */ - typedef int sigset_t; -# define sigemptyset(set) -# define sigprocmask(how,set,oldset) -#endif - -#include "mmaputil.h" -#include <stdlib.h> /* for abort, exit */ -#include <signal.h> -#include <setjmp.h> - -jmp_buf mainloop; -sigset_t mainsigset; - -volatile int pass = 0; -unsigned long page; - -volatile int handler_called = 0; - -static void -handler_continuation (void *arg1, void *arg2, void *arg3) -{ - longjmp (mainloop, pass); -} - -int -handler (void *fault_address, int serious) -{ - handler_called++; - if (handler_called > 10) - abort (); - if (fault_address != (void *)(page + 0x678 + 8 * pass)) - abort (); - pass++; - printf ("Stack overflow %d caught.\n", pass); - sigprocmask (SIG_SETMASK, &mainsigset, NULL); - return sigsegv_leave_handler (handler_continuation, NULL, NULL, NULL); -} - -void -crasher (unsigned long p) -{ - *(volatile int *) (p + 0x678 + 8 * pass) = 42; -} - -int -main () -{ - sigset_t emptyset; - void *p; - - /* Preparations. */ -#if !HAVE_MMAP_ANON && !HAVE_MMAP_ANONYMOUS && HAVE_MMAP_DEVZERO - zero_fd = open ("/dev/zero", O_RDONLY, 0644); -#endif - - /* Setup some mmaped memory. */ - p = mmap_zeromap ((void *) 0x12340000, 0x4000); - if (p == (void *)(-1)) - { - fprintf (stderr, "mmap_zeromap failed.\n"); - exit (2); - } - page = (unsigned long) p; - - /* Make it read-only. */ - if (mprotect ((void *) page, 0x4000, PROT_READ) < 0) - { - fprintf (stderr, "mprotect failed.\n"); - exit (2); - } - - /* Install the SIGSEGV handler. */ - if (sigsegv_install_handler (&handler) < 0) - exit (2); - - /* Save the current signal mask. */ - sigemptyset (&emptyset); - sigprocmask (SIG_BLOCK, &emptyset, &mainsigset); - - /* Provoke two SIGSEGVs in a row. */ - switch (setjmp (mainloop)) - { - case 0: case 1: - printf ("Doing SIGSEGV pass %d.\n", pass + 1); - crasher (page); - printf ("no SIGSEGV?!\n"); exit (1); - case 2: - break; - default: - abort (); - } - - /* Test passed! */ - printf ("Test passed.\n"); - return 0; -} - -#else - -int -main () -{ - return 77; -} - -#endif diff --git a/libsigsegv/tests/stackoverflow1.c b/libsigsegv/tests/stackoverflow1.c deleted file mode 100644 index 0970e794..00000000 --- a/libsigsegv/tests/stackoverflow1.c +++ /dev/null @@ -1,147 +0,0 @@ -/* Test the stack overflow handler. - Copyright (C) 2002-2006, 2008 Bruno Haible <bruno@clisp.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef _MSC_VER -# include <config.h> -#endif - -#include "sigsegv.h" -#include <stdio.h> -#include <limits.h> - -#if HAVE_STACK_OVERFLOW_RECOVERY - -#if defined _WIN32 && !defined __CYGWIN__ - /* Windows doesn't have sigset_t. */ - typedef int sigset_t; -# define sigemptyset(set) -# define sigprocmask(how,set,oldset) -#endif - -#include <stddef.h> /* needed for NULL on SunOS4 */ -#include <stdlib.h> /* for abort, exit */ -#include <signal.h> -#include <setjmp.h> -#if HAVE_SETRLIMIT -# include <sys/types.h> -# include <sys/time.h> -# include <sys/resource.h> -#endif -#ifndef SIGSTKSZ -# define SIGSTKSZ 16384 -#endif - -jmp_buf mainloop; -sigset_t mainsigset; - -volatile int pass = 0; - -volatile char *stack_lower_bound; -volatile char *stack_upper_bound; - -static void -stackoverflow_handler_continuation (void *arg1, void *arg2, void *arg3) -{ - int arg = (int) (long) arg1; - longjmp (mainloop, arg); -} - -void -stackoverflow_handler (int emergency, stackoverflow_context_t scp) -{ - char dummy; - volatile char *addr = &dummy; - if (!(addr >= stack_lower_bound && addr <= stack_upper_bound)) - abort (); - pass++; - printf ("Stack overflow %d caught.\n", pass); - sigprocmask (SIG_SETMASK, &mainsigset, NULL); - sigsegv_leave_handler (stackoverflow_handler_continuation, - (void *) (long) (emergency ? -1 : pass), NULL, NULL); -} - -volatile int * -recurse_1 (int n, volatile int *p) -{ - if (n < INT_MAX) - *recurse_1 (n + 1, p) += n; - return p; -} - -int -recurse (volatile int n) -{ - return *recurse_1 (n, &n); -} - -int -main () -{ - /* glibc says: Users should use SIGSTKSZ as the size of user-supplied - buffers. */ - char mystack[SIGSTKSZ]; - sigset_t emptyset; - -#if HAVE_SETRLIMIT && defined RLIMIT_STACK - /* Before starting the endless recursion, try to be friendly to the user's - machine. On some Linux 2.2.x systems, there is no stack limit for user - processes at all. We don't want to kill such systems. */ - struct rlimit rl; - rl.rlim_cur = rl.rlim_max = 0x100000; /* 1 MB */ - setrlimit (RLIMIT_STACK, &rl); -#endif - - /* Install the stack overflow handler. */ - if (stackoverflow_install_handler (&stackoverflow_handler, - mystack, sizeof (mystack)) - < 0) - exit (2); - stack_lower_bound = mystack; - stack_upper_bound = mystack + sizeof (mystack) - 1; - - /* Save the current signal mask. */ - sigemptyset (&emptyset); - sigprocmask (SIG_BLOCK, &emptyset, &mainsigset); - - /* Provoke two stack overflows in a row. */ - switch (setjmp (mainloop)) - { - case -1: - printf ("emergency exit\n"); exit (1); - case 0: case 1: - printf ("Starting recursion pass %d.\n", pass + 1); - recurse (0); - printf ("no endless recursion?!\n"); exit (1); - case 2: - break; - default: - abort (); - } - - printf ("Test passed.\n"); - exit (0); -} - -#else - -int -main () -{ - return 77; -} - -#endif diff --git a/libsigsegv/tests/stackoverflow2.c b/libsigsegv/tests/stackoverflow2.c deleted file mode 100644 index 2475bf21..00000000 --- a/libsigsegv/tests/stackoverflow2.c +++ /dev/null @@ -1,198 +0,0 @@ -/* Test that stack overflow and SIGSEGV are correctly distinguished. - Copyright (C) 2002-2006, 2008 Bruno Haible <bruno@clisp.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef _MSC_VER -# include <config.h> -#endif - -#include "sigsegv.h" -#include <stdio.h> -#include <limits.h> - -#if HAVE_STACK_OVERFLOW_RECOVERY && HAVE_SIGSEGV_RECOVERY - -#if defined _WIN32 && !defined __CYGWIN__ - /* Windows doesn't have sigset_t. */ - typedef int sigset_t; -# define sigemptyset(set) -# define sigprocmask(how,set,oldset) -#endif - -#include "mmaputil.h" -#include <stddef.h> /* needed for NULL on SunOS4 */ -#include <stdlib.h> /* for abort, exit */ -#include <signal.h> -#include <setjmp.h> -#if HAVE_SETRLIMIT -# include <sys/types.h> -# include <sys/time.h> -# include <sys/resource.h> -#endif -#ifndef SIGSTKSZ -# define SIGSTKSZ 16384 -#endif - -jmp_buf mainloop; -sigset_t mainsigset; - -volatile int pass = 0; -unsigned long page; - -static void -stackoverflow_handler_continuation (void *arg1, void *arg2, void *arg3) -{ - int arg = (int) (long) arg1; - longjmp (mainloop, arg); -} - -void -stackoverflow_handler (int emergency, stackoverflow_context_t scp) -{ - pass++; - if (pass <= 2) - printf ("Stack overflow %d caught.\n", pass); - else - { - printf ("Segmentation violation misdetected as stack overflow.\n"); - exit (1); - } - sigprocmask (SIG_SETMASK, &mainsigset, NULL); - sigsegv_leave_handler (stackoverflow_handler_continuation, - (void *) (long) (emergency ? -1 : pass), NULL, NULL); -} - -int -sigsegv_handler (void *address, int emergency) -{ - /* This test is necessary to distinguish stack overflow and SIGSEGV. */ - if (!emergency) - return 0; - - pass++; - if (pass <= 2) - { - printf ("Stack overflow %d missed.\n", pass); - exit (1); - } - else - printf ("Segmentation violation correctly detected.\n"); - sigprocmask (SIG_SETMASK, &mainsigset, NULL); - return sigsegv_leave_handler (stackoverflow_handler_continuation, - (void *) (long) pass, NULL, NULL); -} - -volatile int * -recurse_1 (int n, volatile int *p) -{ - if (n < INT_MAX) - *recurse_1 (n + 1, p) += n; - return p; -} - -int -recurse (volatile int n) -{ - return *recurse_1 (n, &n); -} - -int -main () -{ - /* glibc says: Users should use SIGSTKSZ as the size of user-supplied - buffers. */ - char mystack[SIGSTKSZ]; - sigset_t emptyset; - void *p; - -#if HAVE_SETRLIMIT && defined RLIMIT_STACK - /* Before starting the endless recursion, try to be friendly to the user's - machine. On some Linux 2.2.x systems, there is no stack limit for user - processes at all. We don't want to kill such systems. */ - struct rlimit rl; - rl.rlim_cur = rl.rlim_max = 0x100000; /* 1 MB */ - setrlimit (RLIMIT_STACK, &rl); -#endif - - /* Install the stack overflow handler. */ - if (stackoverflow_install_handler (&stackoverflow_handler, - mystack, sizeof (mystack)) - < 0) - exit (2); - - /* Preparations. */ -#if !HAVE_MMAP_ANON && !HAVE_MMAP_ANONYMOUS && HAVE_MMAP_DEVZERO - zero_fd = open ("/dev/zero", O_RDONLY, 0644); -#endif - - /* Setup some mmaped memory. */ - p = mmap_zeromap ((void *) 0x12340000, 0x4000); - if (p == (void *)(-1)) - { - fprintf (stderr, "mmap_zeromap failed.\n"); - exit (2); - } - page = (unsigned long) p; - - /* Make it read-only. */ - if (mprotect ((void *) page, 0x4000, PROT_READ) < 0) - { - fprintf (stderr, "mprotect failed.\n"); - exit (2); - } - - /* Install the SIGSEGV handler. */ - if (sigsegv_install_handler (&sigsegv_handler) < 0) - exit (2); - - /* Save the current signal mask. */ - sigemptyset (&emptyset); - sigprocmask (SIG_BLOCK, &emptyset, &mainsigset); - - /* Provoke two stack overflows in a row. */ - switch (setjmp (mainloop)) - { - case -1: - printf ("emergency exit\n"); exit (1); - case 0: case 1: - printf ("Starting recursion pass %d.\n", pass + 1); - recurse (0); - printf ("no endless recursion?!\n"); exit (1); - case 2: - *(volatile int *) (page + 0x678) = 42; - break; - case 3: - *(volatile int *) 0 = 42; - break; - case 4: - break; - default: - abort (); - } - - printf ("Test passed.\n"); - exit (0); -} - -#else - -int -main () -{ - return 77; -} - -#endif |