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D40624.1775722716.diff
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diff --git a/lib/csu/Makefile.inc b/lib/csu/Makefile.inc
--- a/lib/csu/Makefile.inc
+++ b/lib/csu/Makefile.inc
@@ -42,9 +42,6 @@
crt1.o: ${CRT1SRC:C/.[S|c]$/.o/} ${CRT1OBJS} ${CRT1OBJ}
${LD} ${_LDFLAGS} -o ${.TARGET} -r ${.ALLSRC:M*.o}
-.if ${MACHINE_ARCH} == "i386"
- ${OBJCOPY} --localize-symbol _start1 ${.TARGET}
-.endif
gcrt1_c.o: ${CRT1SRC}
${CC} ${CFLAGS} -DGCRT -c -o ${.TARGET} ${.CURDIR}/${CRT1SRC}
@@ -57,9 +54,6 @@
Scrt1.o: Scrt1_c.o ${CRT1OBJS} ${CRT1OBJ}
${LD} ${_LDFLAGS} -o ${.TARGET} -r ${.ALLSRC:M*.o}
-.if ${MACHINE_ARCH} == "i386"
- ${OBJCOPY} --localize-symbol _start1 ${.TARGET}
-.endif
crtbegin.o: crtbegin.c
crtbeginS.o: crtbegin.c
diff --git a/lib/csu/i386/Makefile b/lib/csu/i386/Makefile
--- a/lib/csu/i386/Makefile
+++ b/lib/csu/i386/Makefile
@@ -4,6 +4,7 @@
CFLAGS+= -I${.CURDIR}
-CRT1OBJS+= crt1_s.o
+CRT1SRC= crt1_s.S
+CRT1OBJ= crt1_c.o
.include <bsd.lib.mk>
diff --git a/lib/csu/i386/crt1_c.c b/lib/csu/i386/crt1_c.c
--- a/lib/csu/i386/crt1_c.c
+++ b/lib/csu/i386/crt1_c.c
@@ -29,25 +29,6 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
-#include "libc_private.h"
#include "csu_common.h"
-void _start(char *, ...);
-void _start1(void (*)(void), int, char *[]) __dead2;
-
-/* The entry function, C part. */
-void
-_start1(void (*cleanup)(void), int argc, char *argv[])
-{
- char **env;
-
- env = argv + argc + 1;
-#ifdef GCRT
- __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext);
-__asm__("eprol:");
-#else
- __libc_start1(argc, argv, env, cleanup, main);
-#endif
-}
-
-__asm(".hidden _start1");
+void _start(char *, ...) __dead2;
diff --git a/lib/csu/i386/crt1_s.S b/lib/csu/i386/crt1_s.S
--- a/lib/csu/i386/crt1_s.S
+++ b/lib/csu/i386/crt1_s.S
@@ -31,19 +31,63 @@
.type _start, @function
_start:
.cfi_startproc
+ .cfi_undefined %eip
+ popl %esi # Pop argc
+ .cfi_def_cfa_offset -4
+ movl %esp,%edi # argv starts at stack top
xorl %ebp,%ebp
pushl %ebp
- .cfi_def_cfa_offset 4
+ .cfi_def_cfa_offset 0
movl %esp,%ebp
- .cfi_offset %ebp,-8
+ .cfi_offset %ebp,-4
.cfi_def_cfa_register %ebp
andl $0xfffffff0,%esp # align stack
- leal 8(%ebp),%eax
- subl $4,%esp
- pushl %eax # argv
- pushl 4(%ebp) # argc
+
+#ifdef GCRT
+ subl $4,%esp # Align stack for 7 arguments
+ pushl $etext
+ pushl $eprol
+eprol:
+#else
+ subl $12,%esp # Align stack for 5 arguments
+#endif /* GCRT */
+
+#ifdef PIC
+ calll .L1
+.L1: popl %ebx
+ addl $_GLOBAL_OFFSET_TABLE_+[.-.L1],%ebx
+ leal main@GOTOFF(%ebx),%eax
+ pushl %eax
+#else
+ pushl $main
+#endif /* PIC */
+
pushl %edx # rtld cleanup
- call _start1
+ /* env = argv + argc + 1 */
+ movl %edi,%eax # env = argv
+ movl %esi,%ecx
+ shll $2,%ecx # argc * 4
+ addl %ecx,%eax # env += argc
+ addl $4,%eax # env += 1
+ pushl %eax # env
+ pushl %edi # argv
+ pushl %esi # argc
+
+#ifdef GCRT
+ /*
+ * __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext);
+ */
+ calll __libc_start1_gcrt
+ /*
+ * __libc_start1(argc, argv, env, cleanup, main);
+ */
+#else
+#ifdef PIC
+ calll __libc_start1@PLT
+#else
+ calll __libc_start1
+#endif
+#endif /* GCRT */
int3
.cfi_endproc
.size _start, . - _start

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