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-rw-r--r--ChangeLog3
-rwxr-xr-xconfigure46
-rw-r--r--hurd/hurdsig.c49
3 files changed, 57 insertions, 41 deletions
diff --git a/ChangeLog b/ChangeLog
index 28ee163..193ca76 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
Thu Apr 20 22:23:58 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+ * hurd/hurdsig.c: Use assert_perror for many calls which should
+ never fail and previously were not checked.
+
* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
Point the return address for sigreturn's frame at a "hlt" insn so
it will definitely crash if sigreturn returns.
diff --git a/configure b/configure
index e440083..36fcca0 100755
--- a/configure
+++ b/configure
@@ -621,6 +621,19 @@ none)
base_os='' ;;
esac
+# Some configurations imply other options.
+case "$os" in
+gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
+ # These systems always use GNU tools.
+ gnu_ld=yes gnu_as=yes
+esac
+case "$os" in
+gnu*elf* | linux* | sysv4* | solaris2*)
+ # These systems always use the ELF format.
+ elf=yes
+esac
+
+
# For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
tail=$os
ostry=$os
@@ -647,6 +660,10 @@ mach=
tail=$machine
while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
set $m
+ # If using ELF, look for an `elf' subdirectory of each machine directory.
+ if test "$elf" = yes; then
+ mach="$mach /$1/elf"
+ fi
mach="$mach /$1"
tail="$2"
done
@@ -680,18 +697,6 @@ fi
# We have now validated the configuration.
-# Some configurations imply other options.
-case "$host_os" in
-gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
- # These systems always use GNU tools.
- gnu_ld=yes gnu_as=yes
-esac
-case "$host_os" in
-gnu*elf* | linux* | sysv4* | solaris2*)
- # These systems always use the ELF format.
- elf=yes
-esac
-
# Remove the leading slashes.
sysnames="`echo $sysnames | sed -e 's@^/@@' -e 's@ /@ @g'`"
@@ -707,17 +712,6 @@ if test "$with_fp" = yes; then
sysnames="`echo $fpu_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
fi
-# If using ELF, prepend the machine-specific ELF ABI directory.
-if test "$elf" = yes; then
- elf_dirs=
- for m in $mach; do
- if test -d $sysdep_dir$m/elf; then
- elf_dirs="elf_dirs $m/elf"
- fi
- done
- sysnames="`echo elf_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
-fi
-
# Expand the list of system names into a full list of directories
@@ -999,7 +993,7 @@ else
# On the NeXT, cc -E runs the code through the compiler's parser,
# not just through cpp.
cat > conftest.$ac_ext <<EOF
-#line 1003 "configure"
+#line 997 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
@@ -1013,7 +1007,7 @@ else
rm -rf conftest*
CPP="${CC-cc} -E -traditional-cpp"
cat > conftest.$ac_ext <<EOF
-#line 1017 "configure"
+#line 1011 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
@@ -1065,7 +1059,7 @@ if eval "test \"`echo '$''{'libc_cv_friendly_stddef'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&4
else
cat > conftest.$ac_ext <<EOF
-#line 1069 "configure"
+#line 1063 "configure"
#include "confdefs.h"
#define __need_size_t
#define __need_wchar_t
diff --git a/hurd/hurdsig.c b/hurd/hurdsig.c
index d93d4c2..9620a00 100644
--- a/hurd/hurdsig.c
+++ b/hurd/hurdsig.c
@@ -62,7 +62,7 @@ _hurd_thread_sigstate (thread_t thread)
__mutex_lock (&_hurd_siglock);
for (ss = _hurd_sigstates; ss != NULL; ss = ss->next)
if (ss->thread == thread)
- break;
+ break;
if (ss == NULL)
{
ss = malloc (sizeof (*ss));
@@ -185,11 +185,14 @@ post_reply (mach_port_t *reply_port, mach_msg_type_name_t reply_port_type,
int untraced,
error_t result)
{
+ error_t err;
if (reply_port == NULL || *reply_port == MACH_PORT_NULL)
return;
- (untraced ? __msg_sig_post_untraced_reply : __msg_sig_post_reply)
+ err = (untraced ? __msg_sig_post_untraced_reply : __msg_sig_post_reply)
(*reply_port, reply_port_type, result);
*reply_port = MACH_PORT_NULL;
+ if (err != MACH_SEND_INVALID_DEST) /* Ignore dead reply port. */
+ assert_perror (err);
}
@@ -208,7 +211,8 @@ abort_thread (struct hurd_sigstate *ss, struct machine_thread_all_state *state,
{
if (!(state->set & THREAD_ABORTED))
{
- __thread_abort (ss->thread);
+ error_t err = __thread_abort (ss->thread);
+ assert_perror (err);
/* Clear all thread state flavor set bits, because thread_abort may
have changed the state. */
state->set = THREAD_ABORTED;
@@ -423,6 +427,7 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
mach_msg_type_name_t reply_port_type,
int untraced)
{
+ error_t err;
struct machine_thread_all_state thread_state;
enum { stop, ignore, core, term, handle } act;
sighandler_t handler;
@@ -601,8 +606,13 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
{
if (threads[i] != _hurd_msgport_thread &&
(act != handle || threads[i] != ss->thread))
- __thread_resume (threads[i]);
- __mach_port_deallocate (__mach_task_self (), threads[i]);
+ {
+ err = __thread_resume (threads[i]);
+ assert_perror (err);
+ }
+ err = __mach_port_deallocate (__mach_task_self (),
+ threads[i]);
+ assert_perror (err);
}
__vm_deallocate (__mach_task_self (),
(vm_address_t) threads,
@@ -641,10 +651,13 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
{
case stop:
if (_hurd_stopped)
- /* We are already stopped, but receiving an untraced stop
- signal. Instead of resuming and suspending again, just
- notify the proc server of the new stop signal. */
- __USEPORT (PROC, __proc_mark_stop (port, signo));
+ {
+ /* We are already stopped, but receiving an untraced stop
+ signal. Instead of resuming and suspending again, just
+ notify the proc server of the new stop signal. */
+ error_t err = __USEPORT (PROC, __proc_mark_stop (port, signo));
+ assert_perror (err);
+ }
else
/* Suspend the process. */
suspend ();
@@ -658,7 +671,8 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
case core: /* And leave a rotting corpse. */
nirvana:
/* Have the proc server stop all other threads in our task. */
- __USEPORT (PROC, __proc_dostop (port, _hurd_msgport_thread));
+ err = __USEPORT (PROC, __proc_dostop (port, _hurd_msgport_thread));
+ assert_perror (err);
/* No more user instructions will be executed.
The signal can now be considered delivered. */
reply ();
@@ -684,7 +698,10 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
/* Stop the thread and abort its pending RPC operations. */
if (! ss_suspended)
- __thread_suspend (ss->thread);
+ {
+ err = __thread_suspend (ss->thread);
+ assert_perror (err);
+ }
/* Abort the thread's kernel context, so any pending message send
or receive completes immediately or aborts. If an interruptible
@@ -750,10 +767,12 @@ _hurd_internal_post_signal (struct hurd_sigstate *ss,
/* Start the thread running the handler (or possibly waiting for an
RPC reply before running the handler). */
- __thread_set_state (ss->thread, MACHINE_THREAD_STATE_FLAVOR,
- (natural_t *) &thread_state.basic,
- MACHINE_THREAD_STATE_COUNT);
- __thread_resume (ss->thread);
+ err = __thread_set_state (ss->thread, MACHINE_THREAD_STATE_FLAVOR,
+ (natural_t *) &thread_state.basic,
+ MACHINE_THREAD_STATE_COUNT);
+ assert_perror (err);
+ err = __thread_resume (ss->thread);
+ assert_perror (err);
thread_state.set = 0; /* Everything we know is now wrong. */
break;
}