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Stop calling _init/_fini methods from crt1 for dynamic binaries. Do

Browse Source 
call preinit, init and fini arrays methods from crt1 for static binaries.

Mark new crt1 with FreeBSD-specific ELF note.

Move some common crt1 code into new MI file ignore_init.c, to reduce
duplication.  Also, conservatively adjust nearby sources for style.

Reviewed by:	kan
Tested by:	andrew (arm), flo (sparc64)
MFC after:	3 weeks
This commit is contained in:
Konstantin Belousov 2012-03-11 20:04:09 +00:00
parent 83aa9cc00c
commit a22748dbd9
16 changed files with 187 additions and 180 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/csu/Makefile.inc
View File

@ -2,4 +2,6 @@
SSP_CFLAGS=
SED_FIX_NOTE = -i "" -e '/\.note\.tag/s/progbits/note/'
.include "../Makefile.inc"

6
lib/csu/amd64/Makefile
View File

@ -19,21 +19,21 @@ CLEANFILES+= crt1.s gcrt1.s Scrt1.s
crt1.s: crt1.c
${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
crt1.o: crt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} crt1.s
gcrt1.s: crt1.c
${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
gcrt1.o: gcrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} gcrt1.s
Scrt1.s: crt1.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
Scrt1.o: Scrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} Scrt1.s

28
lib/csu/amd64/crt1.c
View File

@ -37,16 +37,10 @@ __FBSDID("$FreeBSD$");
#include "libc_private.h"
#include "crtbrand.c"
extern int _DYNAMIC;
#pragma weak _DYNAMIC
#include "ignore_init.c"
typedef void (*fptr)(void);
extern void _fini(void);
extern void _init(void);
extern int main(int, char **, char **);
#ifdef GCRT
extern void _mcleanup(void);
extern void monstartup(void *, void *);
@ -54,9 +48,6 @@ extern int eprol;
extern int etext;
#endif
char **environ;
const char *__progname = "";
void _start(char **, void (*)(void));
/* The entry function. */
@ -66,18 +57,13 @@ _start(char **ap, void (*cleanup)(void))
int argc;
char **argv;
char **env;
const char *s;
argc = *(long *)(void *)ap;
argv = ap + 1;
env = ap + 2 + argc;
environ = env;
if (argc > 0 && argv[0] != NULL) {
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (&_DYNAMIC != NULL)
atexit(cleanup);
@ -86,12 +72,10 @@ _start(char **ap, void (*cleanup)(void))
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
__asm__("eprol:");
#endif
_init();
exit( main(argc, argv, env) );
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}

6
lib/csu/arm/Makefile
View File

@ -18,21 +18,21 @@ CLEANFILES+= crt1.s gcrt1.s Scrt1.s
crt1.s: crt1.c
${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
crt1.o: crt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} crt1.s
gcrt1.s: crt1.c
${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
gcrt1.o: gcrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} gcrt1.s
Scrt1.s: crt1.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
Scrt1.o: Scrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} Scrt1.s

25
lib/csu/arm/crt1.c
View File

@ -52,16 +52,11 @@ __FBSDID("$FreeBSD$");
#include "libc_private.h"
#include "crtbrand.c"
#include "ignore_init.c"
struct Struct_Obj_Entry;
struct ps_strings;
extern int _DYNAMIC;
#pragma weak _DYNAMIC
extern void _fini(void);
extern void _init(void);
extern int main(int, char **, char **);
extern void _start(int, char **, char **, const struct Struct_Obj_Entry *,
void (*)(void), struct ps_strings *);
@ -72,8 +67,6 @@ extern int eprol;
extern int etext;
#endif
char **environ;
const char *__progname = "";
struct ps_strings *__ps_strings;
void __start(int, char **, char **, struct ps_strings *,
@ -104,16 +97,11 @@ void
__start(int argc, char **argv, char **env, struct ps_strings *ps_strings,
const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void))
{
const char *s;
environ = env;
if (argc > 0 && argv[0] != NULL) {
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (ps_strings != (struct ps_strings *)0)
__ps_strings = ps_strings;
@ -124,13 +112,10 @@ __start(int argc, char **argv, char **env, struct ps_strings *ps_strings,
_init_tls();
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
#endif
_init();
exit( main(argc, argv, env) );
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}
#ifdef GCRT

19
lib/csu/common/crtbrand.c
View File

@ -27,10 +27,7 @@
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#define ABI_VENDOR "FreeBSD"
#define ABI_SECTION ".note.ABI-tag"
#define ABI_NOTETYPE 1
#include "notes.h"
/*
* Special ".note" entry specifying the ABI version. See
@ -58,12 +55,12 @@ static const struct {
int32_t namesz;
int32_t descsz;
int32_t type;
char name[sizeof ABI_VENDOR];
char name[sizeof(NOTE_FREEBSD_VENDOR)];
int32_t desc;
} abitag __attribute__ ((section (ABI_SECTION), aligned(4))) __used = {
sizeof ABI_VENDOR,
sizeof(int32_t),
ABI_NOTETYPE,
ABI_VENDOR,
__FreeBSD_version
} abitag __attribute__ ((section (NOTE_SECTION), aligned(4))) __used = {
.namesz = sizeof(NOTE_FREEBSD_VENDOR),
.descsz = sizeof(int32_t),
.type = ABI_NOTETYPE,
.name = NOTE_FREEBSD_VENDOR,
.desc = __FreeBSD_version
};

114
lib/csu/common/ignore_init.c Normal file
View File

@ -0,0 +1,114 @@
/*-
* Copyright 2012 Konstantin Belousov <kib@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "notes.h"
extern int main(int, char **, char **);
extern void (*__preinit_array_start[])(int, char **, char **) __hidden;
extern void (*__preinit_array_end[])(int, char **, char **) __hidden;
extern void (*__init_array_start[])(int, char **, char **) __hidden;
extern void (*__init_array_end[])(int, char **, char **) __hidden;
extern void (*__fini_array_start[])(void) __hidden;
extern void (*__fini_array_end[])(void) __hidden;
extern void _fini(void) __hidden;
extern void _init(void) __hidden;
extern int _DYNAMIC;
#pragma weak _DYNAMIC
char **environ;
const char *__progname = "";
static void
finalizer(void)
{
void (*fn)(void);
size_t array_size, n;
array_size = __fini_array_end - __fini_array_start;
for (n = array_size; n > 0; n--) {
fn = __fini_array_start[n - 1];
if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1)
(fn)();
}
_fini();
}
static inline void
handle_static_init(int argc, char **argv, char **env)
{
void (*fn)(int, char **, char **);
size_t array_size, n;
if (&_DYNAMIC != NULL)
return;
atexit(finalizer);
array_size = __preinit_array_end - __preinit_array_start;
for (n = 0; n < array_size; n++) {
fn = __preinit_array_start[n];
if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1)
fn(argc, argv, env);
}
_init();
array_size = __init_array_end - __init_array_start;
for (n = 0; n < array_size; n++) {
fn = __init_array_start[n];
if ((uintptr_t)fn != 0 && (uintptr_t)fn != 1)
fn(argc, argv, env);
}
}
static inline void
handle_progname(const char *v)
{
const char *s;
__progname = v;
for (s = __progname; *s != '\0'; s++) {
if (*s == '/')
__progname = s + 1;
}
}
static const struct {
int32_t namesz;
int32_t descsz;
int32_t type;
char name[sizeof(NOTE_FREEBSD_VENDOR)];
uint32_t desc;
} crt_noinit_tag __attribute__ ((section (NOTE_SECTION),
aligned(4))) __used = {
.namesz = sizeof(NOTE_FREEBSD_VENDOR),
.descsz = sizeof(uint32_t),
.type = CRT_NOINIT_NOTETYPE,
.name = NOTE_FREEBSD_VENDOR,
.desc = 0
};

6
lib/csu/i386-elf/Makefile
View File

@ -18,7 +18,7 @@ CLEANFILES+= crt1_c.s gcrt1_c.s Scrt1_c.s
gcrt1_c.s: crt1_c.c
${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1_c.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
gcrt1_c.o: gcrt1_c.s
${CC} ${CFLAGS} -c -o ${.TARGET} gcrt1_c.s
@ -28,7 +28,7 @@ gcrt1.o: gcrt1_c.o crt1_s.o
crt1_c.s: crt1_c.c
${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1_c.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
crt1_c.o: crt1_c.s
${CC} ${CFLAGS} -c -o ${.TARGET} crt1_c.s
@ -39,7 +39,7 @@ crt1.o: crt1_c.o crt1_s.o
Scrt1_c.s: crt1_c.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1_c.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
Scrt1_c.o: Scrt1_c.s
${CC} ${CFLAGS} -c -o ${.TARGET} Scrt1_c.s

27
lib/csu/i386-elf/crt1_c.c
View File

@ -39,15 +39,10 @@ __FBSDID("$FreeBSD$");
#include "libc_private.h"
#include "crtbrand.c"
extern int _DYNAMIC;
#pragma weak _DYNAMIC
#include "ignore_init.c"
typedef void (*fptr)(void);
extern void _fini(void);
extern void _init(void);
extern int main(int, char **, char **);
extern void _start(char *, ...);
#ifdef GCRT
@ -57,9 +52,6 @@ extern int eprol;
extern int etext;
#endif
char **environ;
const char *__progname = "";
void _start1(fptr, int, char *[]) __dead2;
/* The entry function, C part. */
@ -67,16 +59,11 @@ void
_start1(fptr cleanup, int argc, char *argv[])
{
char **env;
const char *s;
env = argv + argc + 1;
environ = env;
if (argc > 0 && argv[0] != NULL) {
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (&_DYNAMIC != NULL)
atexit(cleanup);
@ -85,14 +72,12 @@ _start1(fptr cleanup, int argc, char *argv[])
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
__asm__("eprol:");
#endif
_init();
exit( main(argc, argv, env) );
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}
__asm(".hidden _start1");

6
lib/csu/mips/Makefile
View File

@ -18,21 +18,21 @@ CLEANFILES+= crt1.s gcrt1.s Scrt1.s
crt1.s: crt1.c
${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
crt1.o: crt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} crt1.s
gcrt1.s: crt1.c
${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
gcrt1.o: gcrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} gcrt1.s
Scrt1.s: crt1.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
Scrt1.o: Scrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} Scrt1.s

28
lib/csu/mips/crt1.c
View File

@ -43,17 +43,11 @@ __FBSDID("$FreeBSD$");
#include <stdlib.h>
#include "libc_private.h"
#include "crtbrand.c"
#include "ignore_init.c"
struct Struct_Obj_Entry;
struct ps_strings;
extern int _DYNAMIC;
#pragma weak _DYNAMIC
extern void _init(void);
extern void _fini(void);
extern int main(int, char **, char **);
#ifdef GCRT
extern void _mcleanup(void);
extern void monstartup(void *, void *);
@ -61,9 +55,6 @@ extern int eprol;
extern int etext;
#endif
char **environ;
const char *__progname = "";
void __start(char **, void (*)(void), struct Struct_Obj_Entry *, struct ps_strings *);
/* The entry function. */
@ -81,13 +72,8 @@ __start(char **ap,
argv = ap + 1;
env = ap + 2 + argc;
environ = env;
if (argc > 0 && argv[0] != NULL) {
const char *s;
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (&_DYNAMIC != NULL)
atexit(cleanup);
@ -96,13 +82,11 @@ __start(char **ap,
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
#endif
_init();
exit( main(argc, argv, env) );
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}
#ifdef GCRT

6
lib/csu/powerpc/Makefile
View File

@ -18,21 +18,21 @@ CLEANFILES+= crt1.s gcrt1.s Scrt1.s
crt1.s: crt1.c
${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
crt1.o: crt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} crt1.s
gcrt1.s: crt1.c
${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
gcrt1.o: gcrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} gcrt1.s
Scrt1.s: crt1.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
Scrt1.o: Scrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} Scrt1.s

27
lib/csu/powerpc/crt1.c
View File

@ -52,17 +52,11 @@ __FBSDID("$FreeBSD$");
#include "libc_private.h"
#include "crtbrand.c"
#include "ignore_init.c"
struct Struct_Obj_Entry;
struct ps_strings;
extern int _DYNAMIC;
#pragma weak _DYNAMIC
extern void _fini(void);
extern void _init(void);
extern int main(int, char **, char **);
#ifdef GCRT
extern void _mcleanup(void);
extern void monstartup(void *, void *);
@ -70,8 +64,6 @@ extern int eprol;
extern int etext;
#endif
char **environ;
const char *__progname = "";
struct ps_strings *__ps_strings;
void _start(int, char **, char **, const struct Struct_Obj_Entry *,
@ -88,16 +80,11 @@ _start(int argc, char **argv, char **env,
const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void),
struct ps_strings *ps_strings)
{
const char *s;
environ = env;
if (argc > 0 && argv[0] != NULL) {
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (ps_strings != (struct ps_strings *)0)
__ps_strings = ps_strings;
@ -109,13 +96,11 @@ _start(int argc, char **argv, char **env,
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
#endif
_init();
exit( main(argc, argv, env) );
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}
#ifdef GCRT

6
lib/csu/powerpc64/Makefile
View File

@ -18,21 +18,21 @@ CLEANFILES+= crt1.s gcrt1.s Scrt1.s
crt1.s: crt1.c
${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
crt1.o: crt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} crt1.s
gcrt1.s: crt1.c
${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
gcrt1.o: gcrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} gcrt1.s
Scrt1.s: crt1.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' ${.TARGET}
sed ${SED_FIX_NOTE} ${.TARGET}
Scrt1.o: Scrt1.s
${CC} ${CFLAGS} -c -o ${.TARGET} Scrt1.s

26
lib/csu/powerpc64/crt1.c
View File

@ -52,16 +52,11 @@ __FBSDID("$FreeBSD$");
#include "libc_private.h"
#include "crtbrand.c"
#include "ignore_init.c"
struct Struct_Obj_Entry;
struct ps_strings;
extern int _DYNAMIC;
#pragma weak _DYNAMIC
extern void _fini(void);
extern void _init(void);
extern int main(int, char **, char **);
extern void _start(int, char **, char **, const struct Struct_Obj_Entry *,
void (*)(void), struct ps_strings *);
@ -72,8 +67,6 @@ extern int eprol;
extern int etext;
#endif
char **environ;
const char *__progname = "";
struct ps_strings *__ps_strings;
/* The entry function. */
@ -87,16 +80,11 @@ _start(int argc, char **argv, char **env,
const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void),
struct ps_strings *ps_strings)
{
const char *s;
environ = env;
if (argc > 0 && argv[0] != NULL) {
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (ps_strings != (struct ps_strings *)0)
__ps_strings = ps_strings;
@ -108,13 +96,11 @@ _start(int argc, char **argv, char **env,
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
#endif
_init();
exit( main(argc, argv, env) );
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}
#ifdef GCRT

27
lib/csu/sparc64/crt1.c
View File

@ -43,16 +43,11 @@ __FBSDID("$FreeBSD$");
#include "libc_private.h"
#include "crtbrand.c"
#include "ignore_init.c"
struct Struct_Obj_Entry;
struct ps_strings;
extern int _DYNAMIC;
#pragma weak _DYNAMIC
extern void _fini(void);
extern void _init(void);
extern int main(int, char **, char **);
extern void __sparc_utrap_setup(void);
#ifdef GCRT
@ -62,9 +57,6 @@ extern int eprol;
extern int etext;
#endif
char **environ;
const char *__progname = "";
void _start(char **, void (*)(void), struct Struct_Obj_Entry *,
struct ps_strings *);
@ -89,18 +81,13 @@ _start(char **ap, void (*cleanup)(void), struct Struct_Obj_Entry *obj __unused,
int argc;
char **argv;
char **env;
const char *s;
argc = *(long *)(void *)ap;
argv = ap + 1;
env = ap + 2 + argc;
environ = env;
if (argc > 0 && argv[0] != NULL) {
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (argc > 0 && argv[0] != NULL)
handle_progname(argv[0]);
if (&_DYNAMIC != NULL)
atexit(cleanup);
@ -110,13 +97,11 @@ _start(char **ap, void (*cleanup)(void), struct Struct_Obj_Entry *obj __unused,
}
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
#endif
_init();
exit( main(argc, argv, env) );
handle_static_init(argc, argv, env);
exit(main(argc, argv, env));
}
#ifdef GCRT