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 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 __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 1f +1: popl %ebx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b],%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 +#else + /* + * __libc_start1(argc, argv, env, cleanup, main); + */ +#ifdef PIC + calll __libc_start1@PLT +#else + calll __libc_start1 +#endif +#endif /* GCRT */ int3 .cfi_endproc .size _start, . - _start