Signals-be-gone for microperl.

p4raw-id: //depot/cfgperl@6193

7 files changed, 25 insertions, 10 deletions

diff --git a/Todo.micro b/Todo.micro
index c813271141..76759b1951 100644
--- a/Todo.micro
+++ b/Todo.micro
@@ -2,14 +2,6 @@
 
 - make creating Makefile.micro automatic (by pumpkin)
 
-- clean up compilation warnings as much as possible:
-  most of them seem to stem from not including enough headers (as planned)
-  to have enough prototypes, these may be correctible with some simple casts
-
-- do away with signals? (not very portable outside UNIX lands)
-  (missing signal API prototypes cause the majority of the compilation
-   warnings anyway) 
-
 - do away with fork/exec/wait? (system, popen should be enough?)
 
 - some of the uconfig.sh really needs to be probed (using cc) in buildtime:
diff --git a/doop.c b/doop.c
index 37f87e69df..ebac52f3b9 100644
--- a/doop.c
+++ b/doop.c
@@ -15,9 +15,11 @@
 #define PERL_IN_DOOP_C
 #include "perl.h"
 
+#ifndef PERL_MICRO
 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
 #include <signal.h>
 #endif
+#endif
 
 STATIC I32
 S_do_trans_CC_simple(pTHX_ SV *sv)
diff --git a/mg.c b/mg.c
index f8dd89ea7a..b1049c5d9a 100644
--- a/mg.c
+++ b/mg.c
@@ -950,6 +950,7 @@ Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg)
     return 0;
 }
 
+#ifndef PERL_MICRO
 int
 Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg)
 {
@@ -1066,6 +1067,7 @@ Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg)
     }
     return 0;
 }
+#endif /* !PERL_MICRO */
 
 int
 Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg)
diff --git a/perl.c b/perl.c
index 5df462db9d..8b970a2e23 100644
--- a/perl.c
+++ b/perl.c
@@ -1180,6 +1180,7 @@ print \"  \\@INC:\\n    @INC\\n\";");
 
     validate_suid(validarg, scriptname,fdscript);
 
+#ifndef PERL_MICRO
 #if defined(SIGCHLD) || defined(SIGCLD)
     {
 #ifndef SIGCHLD
@@ -1194,6 +1195,7 @@ print \"  \\@INC:\\n    @INC\\n\";");
 	}
     }
 #endif
+#endif
 
 #ifdef MACOS_TRADITIONAL
     if (PL_doextract || gMacPerl_AlwaysExtract) {
@@ -1239,9 +1241,11 @@ print \"  \\@INC:\\n    @INC\\n\";");
 
     if (xsinit)
 	(*xsinit)(aTHXo);	/* in case linked C routines want magical variables */
+#ifndef PERL_MICRO
 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__)
     init_os_extras();
 #endif
+#endif
 
 #ifdef USE_SOCKS
     SOCKSinit(argv[0]);
diff --git a/perl.h b/perl.h
index ade2f65532..8064d9d684 100644
--- a/perl.h
+++ b/perl.h
@@ -2809,10 +2809,14 @@ EXT MGVTBL PL_vtbl_envelem =	{0,	MEMBER_TO_FPTR(Perl_magic_setenv),
 					0,	MEMBER_TO_FPTR(Perl_magic_clearenv),
 							0};
 EXT MGVTBL PL_vtbl_sig =	{0,	0,		 0, 0, 0};
+#ifdef PERL_MICRO
+EXT MGVTBL PL_vtbl_sigelem =	{0,	0,		 0, 0, 0};
+#else
 EXT MGVTBL PL_vtbl_sigelem =	{MEMBER_TO_FPTR(Perl_magic_getsig),
 					MEMBER_TO_FPTR(Perl_magic_setsig),
 					0,	MEMBER_TO_FPTR(Perl_magic_clearsig),
 							0};
+#endif
 EXT MGVTBL PL_vtbl_pack =	{0,	0,	MEMBER_TO_FPTR(Perl_magic_sizepack),	MEMBER_TO_FPTR(Perl_magic_wipepack),
 							0};
 EXT MGVTBL PL_vtbl_packelem =	{MEMBER_TO_FPTR(Perl_magic_getpack),
diff --git a/pp_sys.c b/pp_sys.c
index 97cd15b77f..1ea47cf572 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -3749,7 +3749,7 @@ PP(pp_system)
 	}
     }
     PERL_FLUSHALL_FOR_CHILD;
-#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) && !defined(__CYGWIN__)
+#if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) && !defined(__CYGWIN__) || defined(PERL_MICRO)
     if (PerlProc_pipe(pp) >= 0)
 	did_pipes = 1;
     while ((childpid = vfork()) == -1) {
@@ -3768,13 +3768,17 @@ PP(pp_system)
     if (childpid > 0) {
 	if (did_pipes)
 	    PerlLIO_close(pp[1]);
+#ifndef PERL_MICRO
 	rsignal_save(SIGINT, SIG_IGN, &ihand);
 	rsignal_save(SIGQUIT, SIG_IGN, &qhand);
+#endif
 	do {
 	    result = wait4pid(childpid, &status, 0);
 	} while (result == -1 && errno == EINTR);
+#ifndef PERL_MICRO
 	(void)rsignal_restore(SIGINT, &ihand);
 	(void)rsignal_restore(SIGQUIT, &qhand);
+#endif
 	STATUS_NATIVE_SET(result == -1 ? -1 : status);
 	do_execfree();	/* free any memory child malloced on vfork */
 	SP = ORIGMARK;
diff --git a/util.c b/util.c
index 91ca89a4d6..8962fff609 100644
--- a/util.c
+++ b/util.c
@@ -16,6 +16,7 @@
 #define PERL_IN_UTIL_C
 #include "perl.h"
 
+#ifndef PERL_MICRO
 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
 #include <signal.h>
 #endif
@@ -23,6 +24,7 @@
 #ifndef SIG_ERR
 # define SIG_ERR ((Sighandler_t) -1)
 #endif
+#endif
 
 /* XXX If this causes problems, set i_unistd=undef in the hint file.  */
 #ifdef I_UNISTD
@@ -2494,7 +2496,7 @@ dup2(int oldfd, int newfd)
 }
 #endif
 
-
+#ifndef PERL_MICRO
 #ifdef HAS_SIGACTION
 
 Sighandler_t
@@ -2597,6 +2599,7 @@ Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save)
 }
 
 #endif /* !HAS_SIGACTION */
+#endif /* !PERL_MICRO */
 
     /* VMS' my_pclose() is in VMS.c; same with OS/2 */
 #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) && !defined(EPOC) && !defined(MACOS_TRADITIONAL)
@@ -2638,15 +2641,19 @@ Perl_my_pclose(pTHX_ PerlIO *ptr)
 #ifdef UTS
     if(PerlProc_kill(pid, 0) < 0) { return(pid); }   /* HOM 12/23/91 */
 #endif
+#ifndef PERL_MICRO
     rsignal_save(SIGHUP, SIG_IGN, &hstat);
     rsignal_save(SIGINT, SIG_IGN, &istat);
     rsignal_save(SIGQUIT, SIG_IGN, &qstat);
+#endif
     do {
 	pid2 = wait4pid(pid, &status, 0);
     } while (pid2 == -1 && errno == EINTR);
+#ifndef PERL_MICRO
     rsignal_restore(SIGHUP, &hstat);
     rsignal_restore(SIGINT, &istat);
     rsignal_restore(SIGQUIT, &qstat);
+#endif
     if (close_failed) {
 	SETERRNO(saved_errno, saved_vaxc_errno);
 	return -1;