diff options
Diffstat (limited to 'sysdeps/mach/hurd/i386/init-first.c')
-rw-r--r-- | sysdeps/mach/hurd/i386/init-first.c | 65 |
1 files changed, 35 insertions, 30 deletions
diff --git a/sysdeps/mach/hurd/i386/init-first.c b/sysdeps/mach/hurd/i386/init-first.c index ee7b90252b..505c9ca328 100644 --- a/sysdeps/mach/hurd/i386/init-first.c +++ b/sysdeps/mach/hurd/i386/init-first.c @@ -1,5 +1,5 @@ /* Initialization code run first thing by the ELF startup code. For i386/Hurd. - Copyright (C) 1995, 96, 97, 98, 99 Free Software Foundation, Inc. + Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -35,7 +35,7 @@ unsigned int __hurd_threadvar_max; unsigned long int __hurd_threadvar_stack_offset; unsigned long int __hurd_threadvar_stack_mask; -#ifndef PIC +#ifndef SHARED int __libc_enable_secure; #endif int __libc_multiple_libcs = 1; @@ -53,8 +53,8 @@ DEFINE_HOOK (_hurd_preinit_hook, (void)); /* We call this once the Hurd magic is all set up and we are ready to be a Posixoid program. This does the same things the generic version does. */ -static void internal_function -posixland_init (int argc, char **argv) +static void +posixland_init (int argc, char **argv, char **envp) { __libc_init (argc, argv, __environ); @@ -76,7 +76,6 @@ init1 (int argc, char *arg0, ...) __libc_argc = argc; __libc_argv = argv; - __environ = envp; while (*envp) ++envp; @@ -111,10 +110,8 @@ init1 (int argc, char *arg0, ...) d->portarray, d->portarraysize, d->intarray, d->intarraysize); -#ifndef PIC +#ifndef SHARED __libc_enable_secure = d->flags & EXEC_SECURE; -#else - posixland_init(argc, argv); #endif } @@ -247,38 +244,49 @@ asm (" "); -#ifdef PIC -/* This function is called to initialize the shared C library. - It is called just before the user _start code from i386/elf/start.S, - with the stack set up as that code gets it. */ - -/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT - pointer in the dynamic section based solely on that. It is convention - for this function to be in the `.init' section, but the symbol name is - the only thing that really matters!! */ -void -_init (int argc, ...) +/* Do the first essential initializations that must precede all else. */ +static inline void +first_init (void) { /* Initialize data structures so we can do RPCs. */ __mach_init (); RUN_HOOK (_hurd_preinit_hook, ()); +} + +#ifdef SHARED +/* This function is called specially by the dynamic linker to do early + initialization of the shared C library before normal initializers + expecting a Posixoid environment can run. It gets called with the + stack set up just as the user will see it, so it can switch stacks. */ + +void +_dl_init_first (int argc, ...) +{ + first_init (); init (&argc); } #endif +#ifdef SHARED +/* The regular posixland initialization is what goes into libc's + normal initializer. */ +/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT + pointer in the dynamic section based solely on that. It is convention + for this function to be in the `.init' section, but the symbol name is + the only thing that really matters!! */ +strong_alias (posixland_init, _init); + void __libc_init_first (int argc, char **argv, char **envp) -#ifdef PIC { /* Everything was done in the shared library initializer, _init. */ } #else -{ - posixland_init(argc, argv); -} +strong_alias (posixland_init, __libc_init_first); + /* XXX This is all a crock and I am not happy with it. This poorly-named function is called by static-start.S, @@ -295,9 +303,9 @@ _hurd_stack_setup (int argc __attribute__ ((unused)), ...) } /* Push the user return address after the argument data, and then - jump to `doinit1' (above), so it is as if __libc_init_first's - caller had called `doinit1' with the argument data already on the - stack. */ + jump to `doinit1' (above), so it is as if __libc_init_first's + caller had called `doinit1' with the argument data already on the + stack. */ *--data = (&argc)[-1]; asm volatile ("movl %0, %%esp\n" /* Switch to new outermost stack. */ "movl $0, %%ebp\n" /* Clear outermost frame pointer. */ @@ -305,10 +313,7 @@ _hurd_stack_setup (int argc __attribute__ ((unused)), ...) /* NOTREACHED */ } - /* Initialize data structures so we can do RPCs. */ - __mach_init (); - - RUN_HOOK (_hurd_preinit_hook, ()); + first_init (); _hurd_startup ((void **) &argc, &doinit); } |