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toplev.c (pipe_closed): Delete.
* toplev.c (pipe_closed): Delete. (crash_signal): New. Generate ICE for a fatal signal. (float_signal): Call crash_signal outside a float-handler block, not abort. (main): Install crash_signal as handler for core-dumping signals. * cp/decl.c: Remove all signal handling code, now done in toplev.c. From-SVN: r35247
This commit is contained in:
Zack Weinberg
Zack Weinberg
parent
cccf3bdc5c
commit
a7023245ce
@ -1,3 +1,11 @@
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2000-07-25 Zack Weinberg <zack@wolery.cumb.org>
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* toplev.c (pipe_closed): Delete.
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(crash_signal): New. Generate ICE for a fatal signal.
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(float_signal): Call crash_signal outside a float-handler
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block, not abort.
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(main): Install crash_signal as handler for core-dumping signals.
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2000-07-25 David Edelsohn <edelsohn@gnu.org>
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* rs6000.c (print_operand, case 'T'): New case.
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@ -1,3 +1,7 @@
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2000-07-25 Zack Weinberg <zack@wolery.cumb.org>
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* decl.c: Remove all signal handling code, now done in toplev.c.
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2000-07-23 Mark Mitchell <mark@codesourcery.com>
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* decl.c (make_rtl_for_nonlocal_decl): Rework.
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@ -37,7 +37,6 @@ Boston, MA 02111-1307, USA. */
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#include "cp-tree.h"
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#include "decl.h"
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#include "lex.h"
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#include <signal.h>
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#include "defaults.h"
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#include "output.h"
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#include "except.h"
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@ -105,7 +104,6 @@ static void suspend_binding_level PARAMS ((void));
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static void resume_binding_level PARAMS ((struct binding_level *));
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static struct binding_level *make_binding_level PARAMS ((void));
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static void declare_namespace_level PARAMS ((void));
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static void signal_catch PARAMS ((int)) ATTRIBUTE_NORETURN;
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static int decl_jump_unsafe PARAMS ((tree));
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static void storedecls PARAMS ((tree));
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static void require_complete_types_for_parms PARAMS ((tree));
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@ -6096,36 +6094,6 @@ end_only_namespace_names ()
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only_namespace_names = 0;
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}
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/* Arrange for the user to get a source line number, even when the
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compiler is going down in flames, so that she at least has a
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chance of working around problems in the compiler. We used to
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call error(), but that let the segmentation fault continue
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through; now, it's much more passive by asking them to send the
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maintainers mail about the problem. */
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static void
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signal_catch (sig)
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int sig;
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{
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signal (SIGSEGV, SIG_DFL);
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#ifdef SIGIOT
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signal (SIGIOT, SIG_DFL);
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#endif
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#ifdef SIGILL
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signal (SIGILL, SIG_DFL);
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#endif
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#ifdef SIGABRT
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signal (SIGABRT, SIG_DFL);
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#endif
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#ifdef SIGBUS
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signal (SIGBUS, SIG_DFL);
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#endif
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fatal ("Internal error: %s\n\
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Please submit a full bug report.\n\
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See %s for instructions.", strsignal (sig), GCCBUGURL);
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}
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/* Push the declarations of builtin types into the namespace.
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RID_INDEX, if < CP_RID_MAX is the index of the builtin type
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in the array RID_POINTERS. NAME is the name used when looking
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@ -6334,28 +6302,6 @@ init_decl_processing ()
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current_binding_level = NULL_BINDING_LEVEL;
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free_binding_level = NULL_BINDING_LEVEL;
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/* Because most segmentation signals can be traced back into user
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code, catch them and at least give the user a chance of working
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around compiler bugs. */
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signal (SIGSEGV, signal_catch);
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/* We will also catch aborts in the back-end through signal_catch and
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give the user a chance to see where the error might be, and to defeat
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aborts in the back-end when there have been errors previously in their
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code. */
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#ifdef SIGIOT
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signal (SIGIOT, signal_catch);
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#endif
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#ifdef SIGILL
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signal (SIGILL, signal_catch);
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#endif
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#ifdef SIGABRT
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signal (SIGABRT, signal_catch);
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#endif
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#ifdef SIGBUS
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signal (SIGBUS, signal_catch);
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#endif
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build_common_tree_nodes (flag_signed_char);
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error_mark_list = build_tree_list (error_mark_node, error_mark_node);
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36
gcc/toplev.c
36
gcc/toplev.c
@ -160,7 +160,7 @@ static void set_target_switch PARAMS ((const char *));
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static const char *decl_name PARAMS ((tree, int));
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static void float_signal PARAMS ((int)) ATTRIBUTE_NORETURN;
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static void pipe_closed PARAMS ((int)) ATTRIBUTE_NORETURN;
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static void crash_signal PARAMS ((int)) ATTRIBUTE_NORETURN;
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#ifdef ASM_IDENTIFY_LANGUAGE
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/* This might or might not be used in ASM_IDENTIFY_LANGUAGE. */
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static void output_lang_identify PARAMS ((FILE *)) ATTRIBUTE_UNUSED;
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@ -1543,7 +1543,7 @@ float_signal (signo)
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int signo ATTRIBUTE_UNUSED;
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{
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if (float_handled == 0)
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abort ();
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crash_signal (signo);
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#if defined (USG) || defined (hpux)
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signal (SIGFPE, float_signal); /* re-enable the signal catcher */
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#endif
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@ -1629,14 +1629,17 @@ pop_float_handler (handled, handler)
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bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler));
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}
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/* Handler for SIGPIPE. */
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/* Handler for fatal signals, such as SIGSEGV. These are transformed
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into ICE messages, which is much more user friendly. */
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static void
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pipe_closed (signo)
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crash_signal (signo)
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/* If this is missing, some compilers complain. */
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int signo ATTRIBUTE_UNUSED;
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int signo;
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{
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fatal ("output pipe has been closed");
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fatal ("Internal error: %s.\n\
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Please submit a full bug report.\n\
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See %s for instructions.", strsignal (signo), GCCBUGURL);
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}
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/* Strip off a legitimate source ending from the input string NAME of
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@ -4431,12 +4434,27 @@ main (argc, argv)
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(void) bindtextdomain (PACKAGE, localedir);
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(void) textdomain (PACKAGE);
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/* Install handler for SIGFPE, which may be received while we do
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compile-time floating point arithmetic. */
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signal (SIGFPE, float_signal);
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#ifdef SIGPIPE
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signal (SIGPIPE, pipe_closed);
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/* Trap fatal signals, e.g. SIGSEGV, and convert them to ICE messages. */
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#ifdef SIGSEGV
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signal (SIGSEGV, crash_signal);
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#endif
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#ifdef SIGILL
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signal (SIGILL, crash_signal);
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#endif
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#ifdef SIGBUS
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signal (SIGBUS, crash_signal);
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#endif
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#ifdef SIGABRT
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signal (SIGABRT, crash_signal);
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#endif
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#if defined SIGIOT && (!defined SIGABRT || SIGABRT != SIGIOT)
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signal (SIGIOT, crash_signal);
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#endif
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decl_printable_name = decl_name;
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lang_expand_expr = (lang_expand_expr_t) do_abort;
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