JehanneOS/mksh
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reduce stack usage a bit (several candidates for more, including $CC itself…)

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tg
2012-01-29 01:41:15 +00:00
parent 8b023994de
commit bee3bbaaf8
5 changed files with 36 additions and 18 deletions
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38
main.c
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@ -4,7 +4,8 @@
/* $OpenBSD: table.c,v 1.13 2009/01/17 22:06:44 millert Exp $ */
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
* 2011, 2012
* Thorsten Glaser <tg@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
@ -33,7 +34,7 @@
#include <locale.h>
#endif
__RCSID("$MirOS: src/bin/mksh/main.c,v 1.201 2011/11/08 22:07:14 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/main.c,v 1.202 2012/01/29 01:41:14 tg Exp $");
extern char **environ;
@ -45,6 +46,7 @@ extern char **environ;
#define MKSH_DEFAULT_TMPDIR "/tmp"
#endif
static int main_init(int, const char *[], Source **, struct block **);
void chvt_reinit(void);
static void reclaim(void);
static void remove_temps(struct temp *);
@ -155,8 +157,8 @@ static const char *empty_argv[] = {
"mksh", NULL
};
int
main(int argc, const char *argv[])
static int
main_init(int argc, const char *argv[], Source **sp, struct block **lp)
{
int argi, i;
Source *s = NULL;
@ -594,15 +596,31 @@ main(int argc, const char *argv[])
alarm_init();
if (Flag(FAS_BUILTIN))
return (shcomexec(l->argv));
/* doesn't return */
shell(s, true);
/* NOTREACHED */
*sp = s;
*lp = l;
return (0);
}
/* this indirection barrier reduces stack usage during normal operation */
int
main(int argc, const char *argv[])
{
int rv;
Source *s;
struct block *l;
if ((rv = main_init(argc, argv, &s, &l)) == 0) {
if (Flag(FAS_BUILTIN)) {
rv = shcomexec(l->argv);
} else {
shell(s, true);
/* NOTREACHED */
}
}
return (rv);
}
int
include(const char *name, int argc, const char **argv, int intr_ok)
{