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Add check for vfork() to configure.in. Cleanup uses.

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This commit is contained in:
Andrew Cagney 2000-12-02 15:40:56 +00:00
parent ab5ba170e9
commit 818fa2bf21
6 changed files with 24 additions and 8 deletions
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9
gdb/ChangeLog
View file

@ -1,3 +1,12 @@
Sun Dec 3 02:28:26 2000 Andrew Cagney <cagney@b1.cygnus.com>
* ser-pipe.c (pipe_open): Only use vfork when available.
* fork-child.c (fork_inferior): Fix #ifdef HAVE_VFORK test.
(clone_and_follow_inferior): Ditto.
* configure.in (AC_CHECK_FUNCS): Check for vfork.
* configure, config.in: Regenerate.
Sun Dec 3 01:54:49 2000 Andrew Cagney <cagney@b1.cygnus.com>
* ser-unix.c (wait_for): Initialize the FD_SET before every select

3
gdb/config.in
View file

@ -225,6 +225,9 @@
/* Define if you have the strchr function. */
#undef HAVE_STRCHR
/* Define if you have the vfork function. */
#undef HAVE_VFORK
/* Define if you have the <argz.h> header file. */
#undef HAVE_ARGZ_H

2
gdb/configure vendored
View file

@ -3557,7 +3557,7 @@ EOF
fi
for ac_func in setpgid sbrk sigaction isascii bzero bcopy btowc poll sigprocmask
for ac_func in setpgid sbrk sigaction isascii bzero bcopy btowc poll sigprocmask vfork
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:3564: checking for $ac_func" >&5

2
gdb/configure.in
View file

@ -129,7 +129,7 @@ AC_HEADER_STAT
AC_C_CONST
AC_CHECK_FUNCS(setpgid sbrk sigaction isascii bzero bcopy btowc poll sigprocmask)
AC_CHECK_FUNCS(setpgid sbrk sigaction isascii bzero bcopy btowc poll sigprocmask vfork)
AC_FUNC_ALLOCA
# See if machine/reg.h supports the %fs and %gs i386 segment registers.

12
gdb/fork-child.c
View file

@ -244,13 +244,13 @@ fork_inferior (char *exec_file, char *allargs, char **env,
if (pre_trace_fun != NULL)
(*pre_trace_fun) ();
#if defined(USG) && !defined(HAVE_VFORK)
pid = fork ();
#else
#ifdef HAVE_VFORK
if (debug_fork)
pid = fork ();
else
pid = vfork ();
#else
pid = fork ();
#endif
if (pid < 0)
@ -416,13 +416,13 @@ clone_and_follow_inferior (int child_pid, int *followed_child)
error ("error getting pipe for handoff semaphore");
/* Clone the debugger. */
#if defined(USG) && !defined(HAVE_VFORK)
debugger_pid = fork ();
#else
#ifdef HAVE_VFORK
if (debug_fork)
debugger_pid = fork ();
else
debugger_pid = vfork ();
#else
debugger_pid = fork ();
#endif
if (debugger_pid < 0)

4
gdb/ser-pipe.c
View file

@ -64,7 +64,11 @@ pipe_open (serial_t scb, const char *name)
if (socketpair (AF_UNIX, SOCK_STREAM, 0, pdes) < 0)
return -1;
#ifdef HAVE_VFORK
pid = vfork ();
#else
pid = fork ();
#endif
/* Error. */
if (pid == -1)