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Separate out ANSI-standard signals

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This commit reorders various pieces of code to separate ANSI-standard
signals from other signals that need checking.  Comments are added to
document this, and to document the ordering of the signals.

gdb/
2014-06-09  Gary Benson  <gbenson@redhat.com>

	* common/signals.c (gdb_signal_from_host): Reorder to separate
	the always-available ANSI-standard signals from the signals that
	require checking.
	(do_gdb_signal_to_host): Likewise.
	* proc-events.c (signal_table): Likewise.

gdb/testsuite/
2014-06-09  Gary Benson  <gbenson@redhat.com>

	* gdb.base/sigall.c [Functions to send signals]: Reorder to
	separate the always-available ANSI-standard signals from the
	signals that require checking.
	(main): Likewise.
	* gdb.reverse/sigall-reverse.c [Functions to send signals]:
	Likewise.
	(main): Likewise.
This commit is contained in:
Gary Benson
2014-06-09 10:34:33 +01:00
parent c261090765
commit 3657956bf8
6 changed files with 205 additions and 129 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
gdb/common/signals.c
View File

@ -121,36 +121,47 @@ gdb_signal_from_name (const char *name)
enum gdb_signal
gdb_signal_from_host (int hostsig)
{
/* A switch statement would make sense but would require special kludges
to deal with the cases where more than one signal has the same number. */
/* A switch statement would make sense but would require special
kludges to deal with the cases where more than one signal has the
same number. Signals are ordered ANSI-standard signals first,
other signals second, with signals in each block ordered by their
numerical values on a typical POSIX platform. */
if (hostsig == 0)
return GDB_SIGNAL_0;
/* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
are ANSI-standard signals and are always available. */
if (hostsig == SIGINT)
return GDB_SIGNAL_INT;
if (hostsig == SIGILL)
return GDB_SIGNAL_ILL;
if (hostsig == SIGABRT)
return GDB_SIGNAL_ABRT;
if (hostsig == SIGFPE)
return GDB_SIGNAL_FPE;
if (hostsig == SIGSEGV)
return GDB_SIGNAL_SEGV;
if (hostsig == SIGTERM)
return GDB_SIGNAL_TERM;
/* All other signals need preprocessor conditionals. */
#if defined (SIGHUP)
if (hostsig == SIGHUP)
return GDB_SIGNAL_HUP;
#endif
if (hostsig == SIGINT)
return GDB_SIGNAL_INT;
#if defined (SIGQUIT)
if (hostsig == SIGQUIT)
return GDB_SIGNAL_QUIT;
#endif
if (hostsig == SIGILL)
return GDB_SIGNAL_ILL;
#if defined (SIGTRAP)
if (hostsig == SIGTRAP)
return GDB_SIGNAL_TRAP;
#endif
if (hostsig == SIGABRT)
return GDB_SIGNAL_ABRT;
#if defined (SIGEMT)
if (hostsig == SIGEMT)
return GDB_SIGNAL_EMT;
#endif
if (hostsig == SIGFPE)
return GDB_SIGNAL_FPE;
#if defined (SIGKILL)
if (hostsig == SIGKILL)
return GDB_SIGNAL_KILL;
@ -159,8 +170,6 @@ gdb_signal_from_host (int hostsig)
if (hostsig == SIGBUS)
return GDB_SIGNAL_BUS;
#endif
if (hostsig == SIGSEGV)
return GDB_SIGNAL_SEGV;
#if defined (SIGSYS)
if (hostsig == SIGSYS)
return GDB_SIGNAL_SYS;
@ -173,8 +182,6 @@ gdb_signal_from_host (int hostsig)
if (hostsig == SIGALRM)
return GDB_SIGNAL_ALRM;
#endif
if (hostsig == SIGTERM)
return GDB_SIGNAL_TERM;
#if defined (SIGUSR1)
if (hostsig == SIGUSR1)
return GDB_SIGNAL_USR1;
@ -366,36 +373,48 @@ do_gdb_signal_to_host (enum gdb_signal oursig,
do not support signals. */
(void) retsig;
/* Signals are ordered ANSI-standard signals first, other signals
second, with signals in each block ordered by their numerical
values on a typical POSIX platform. */
*oursig_ok = 1;
switch (oursig)
{
case GDB_SIGNAL_0:
return 0;
/* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
are ANSI-standard signals and are always available. */
case GDB_SIGNAL_INT:
return SIGINT;
case GDB_SIGNAL_ILL:
return SIGILL;
case GDB_SIGNAL_ABRT:
return SIGABRT;
case GDB_SIGNAL_FPE:
return SIGFPE;
case GDB_SIGNAL_SEGV:
return SIGSEGV;
case GDB_SIGNAL_TERM:
return SIGTERM;
/* All other signals need preprocessor conditionals. */
#if defined (SIGHUP)
case GDB_SIGNAL_HUP:
return SIGHUP;
#endif
case GDB_SIGNAL_INT:
return SIGINT;
#if defined (SIGQUIT)
case GDB_SIGNAL_QUIT:
return SIGQUIT;
#endif
case GDB_SIGNAL_ILL:
return SIGILL;
#if defined (SIGTRAP)
case GDB_SIGNAL_TRAP:
return SIGTRAP;
#endif
case GDB_SIGNAL_ABRT:
return SIGABRT;
#if defined (SIGEMT)
case GDB_SIGNAL_EMT:
return SIGEMT;
#endif
case GDB_SIGNAL_FPE:
return SIGFPE;
#if defined (SIGKILL)
case GDB_SIGNAL_KILL:
return SIGKILL;
@ -404,8 +423,6 @@ do_gdb_signal_to_host (enum gdb_signal oursig,
case GDB_SIGNAL_BUS:
return SIGBUS;
#endif
case GDB_SIGNAL_SEGV:
return SIGSEGV;
#if defined (SIGSYS)
case GDB_SIGNAL_SYS:
return SIGSYS;
@ -418,8 +435,6 @@ do_gdb_signal_to_host (enum gdb_signal oursig,
case GDB_SIGNAL_ALRM:
return SIGALRM;
#endif
case GDB_SIGNAL_TERM:
return SIGTERM;
#if defined (SIGUSR1)
case GDB_SIGNAL_USR1:
return SIGUSR1;