diff options
| -rw-r--r-- | gdb/ChangeLog | 9 | ||||
| -rwxr-xr-x | gdb/configure | 2 | ||||
| -rw-r--r-- | gdb/configure.ac | 2 | ||||
| -rw-r--r-- | gdb/procfs.c | 31 | ||||
| -rw-r--r-- | gdb/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.base/siginfo-addr.c | 68 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.base/siginfo-addr.exp | 73 |
7 files changed, 184 insertions, 6 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 5337c5e..5836d7c 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,12 @@ +2007-12-16 Daniel Jacobowitz <dan@codesourcery.com> + Joseph Myers <joseph@codesourcery.com> + + * configure.ac: Check for *-*-solaris2.1[[0-9]]* instead of + *-*-solaris2.1[[0-9]]. + * configure: Regenerate. + * procfs.c (proc_set_current_signal): If redelivering a signal, + reuse the current siginfo if possible. + 2007-12-16 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org> * f-typeprint.c (print_equivalent_f77_float_type): Remove function. diff --git a/gdb/configure b/gdb/configure index b84d894..eb26064 100755 --- a/gdb/configure +++ b/gdb/configure @@ -20418,7 +20418,7 @@ cat >>confdefs.h <<\_ACEOF _ACEOF ;; - *-*-solaris2.[6789] | *-*-solaris2.1[0-9]) + *-*-solaris2.[6789] | *-*-solaris2.1[0-9]*) cat >>confdefs.h <<\_ACEOF #define NEW_PROC_API 1 diff --git a/gdb/configure.ac b/gdb/configure.ac index 107fdd6..fe9564d 100644 --- a/gdb/configure.ac +++ b/gdb/configure.ac @@ -828,7 +828,7 @@ if test "${target}" = "${host}"; then [Define if you want to use new multi-fd /proc interface (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).]) ;; - *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]) + *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*) AC_DEFINE(NEW_PROC_API, 1, [Define if you want to use new multi-fd /proc interface (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).]) diff --git a/gdb/procfs.c b/gdb/procfs.c index e288459..4bd1fa8 100644 --- a/gdb/procfs.c +++ b/gdb/procfs.c @@ -2485,6 +2485,8 @@ proc_set_current_signal (procinfo *pi, int signo) char sinfo[sizeof (gdb_siginfo_t)]; } arg; gdb_siginfo_t *mysinfo; + ptid_t wait_ptid; + struct target_waitstatus wait_status; /* * We should never have to apply this operation to any procinfo @@ -2508,10 +2510,31 @@ proc_set_current_signal (procinfo *pi, int signo) /* The pointer is just a type alias. */ mysinfo = (gdb_siginfo_t *) &arg.sinfo; - mysinfo->si_signo = signo; - mysinfo->si_code = 0; - mysinfo->si_pid = getpid (); /* ?why? */ - mysinfo->si_uid = getuid (); /* ?why? */ + get_last_target_status (&wait_ptid, &wait_status); + if (ptid_equal (wait_ptid, inferior_ptid) + && wait_status.kind == TARGET_WAITKIND_STOPPED + && wait_status.value.sig == target_signal_from_host (signo) + && proc_get_status (pi) +#ifdef NEW_PROC_API + && pi->prstatus.pr_lwp.pr_info.si_signo == signo +#else + && pi->prstatus.pr_info.si_signo == signo +#endif + ) + /* Use the siginfo associated with the signal being + redelivered. */ +#ifdef NEW_PROC_API + memcpy (mysinfo, &pi->prstatus.pr_lwp.pr_info, sizeof (gdb_siginfo_t)); +#else + memcpy (mysinfo, &pi->prstatus.pr_info, sizeof (gdb_siginfo_t)); +#endif + else + { + mysinfo->si_signo = signo; + mysinfo->si_code = 0; + mysinfo->si_pid = getpid (); /* ?why? */ + mysinfo->si_uid = getuid (); /* ?why? */ + } #ifdef NEW_PROC_API arg.cmd = PCSSIG; diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 41f52ab..f8e8daf 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2007-12-16 Daniel Jacobowitz <dan@codesourcery.com> + Joseph Myers <joseph@codesourcery.com> + + * gdb.base/siginfo-addr.exp, gdb.base/siginfo-addr.c: New. + 2007-12-14 Vladimir Prus <vladimir@codesourcery.com> * gdb.mi/mi-pending.exp: New. diff --git a/gdb/testsuite/gdb.base/siginfo-addr.c b/gdb/testsuite/gdb.base/siginfo-addr.c new file mode 100644 index 0000000..c1a0095 --- /dev/null +++ b/gdb/testsuite/gdb.base/siginfo-addr.c @@ -0,0 +1,68 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2004, 2007 Free Software Foundation, Inc. + + 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 3 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. + +*/ + +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> +#include <unistd.h> + +static void *p; + +static void +handler (int sig, siginfo_t *info, void *context) +{ + if (info->si_addr == p) + printf ("Correct si_addr value.\n"); + else + printf ("Got si_addr = %p, expected %p.\n", info->si_addr, p); + _exit (0); +} + +int +main (void) +{ + /* Set up unwritable memory. */ + { + size_t len; + len = sysconf(_SC_PAGESIZE); + p = mmap (0, len, PROT_NONE, MAP_ANON|MAP_PRIVATE, -1, 0); + if (p == MAP_FAILED) + { + perror ("mmap"); + return 1; + } + } + /* Set up the signal handler. */ + { + struct sigaction action; + memset (&action, 0, sizeof (action)); + action.sa_sigaction = handler; + action.sa_flags |= SA_SIGINFO; + if (sigaction (SIGSEGV, &action, NULL)) + { + perror ("sigaction"); + return 1; + } + } + /* Trigger SIGSEGV. */ + *(int *)p = 0; + return 0; +} diff --git a/gdb/testsuite/gdb.base/siginfo-addr.exp b/gdb/testsuite/gdb.base/siginfo-addr.exp new file mode 100644 index 0000000..761d1d6 --- /dev/null +++ b/gdb/testsuite/gdb.base/siginfo-addr.exp @@ -0,0 +1,73 @@ +# Copyright 2004, 2007 Free Software Foundation, Inc. + +# 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 3 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 General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + + +# The program siginfo-addr.c arranges for a signal handler registered +# using sigaction's sa_sigaction / SA_SIGINFO to be called with +# si_addr filled in. + +# This test confirms that the si_addr value is correct rather than +# having been corrupted when GDB passed the signal on to the handler. + +if [target_info exists gdb,nosignals] { + verbose "Skipping siginfo-addr.exp because of nosignals." + continue +} + +if [gdb_skip_stdio_test "siginfo-addr.exp"] { + continue +} + +if $tracelevel then { + strace $tracelevel +} + +set prms_id 0 +set bug_id 0 + +set testfile siginfo-addr +set srcfile ${testfile}.c +set binfile ${objdir}/${subdir}/${testfile} +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { + untested "Couldn't compile ${srcfile}.c" + return -1 +} + +# get things started +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load ${binfile} + +gdb_test "display/i \$pc" + +# Advance to main +if { ![runto_main] } then { + gdb_suppress_tests; +} + +# Run to the signal. +gdb_test "continue" ".*Program received signal SIGSEGV.*" "continue to signal" + +# Check for correct si_addr. +set test "program exit" +gdb_test_multiple "continue" "${test}" { + -re "Correct si_addr" { + pass "si_addr value" + } + -re "Got si_addr" { + fail "si_addr value" + } +} |