+++ /dev/null
-/* Copyright (C) 1991-1997,2004,2012 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
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- In addition to the permissions in the GNU Lesser General Public
- License, the Free Software Foundation gives you unlimited
- permission to link the compiled version of this file with other
- programs, and to distribute those programs without any restriction
- coming from the use of this file. (The GNU Lesser General Public
- License restrictions do apply in other respects; for example, they
- cover modification of the file, and distribution when not linked
- into another program.)
-
- Note that people who make modified versions of this file are not
- obligated to grant this special exception for their modified
- versions; it is their choice whether to do so. The GNU Lesser
- General Public License gives permission to release a modified
- version without this exception; this exception also makes it
- possible to release a modified version which carries forward this
- exception.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#ifndef NO_SHLIB
-#include <sys/exec.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <link.h>
-#include <syscall.h>
-#endif
-
-#if !defined (__GNUC__) || __GNUC__ < 2
- #error This file uses GNU C extensions; you must compile with GCC version 2.
-#endif
-
-/* The first piece of initialized data. */
-int __data_start = 0;
-weak_alias (__data_start, data_start)
-
-extern void __libc_init (int argc, char **argv, char **envp) __THROW;
-extern int main (int argc, char **argv, char **envp) __THROW;
-
-register long int sp asm("%sp"), fp asm("%fp");
-
-#ifndef NO_SHLIB
-static void init_shlib (void) __THROW;
-#endif
-
-#ifndef NO_EXPLICIT_START
-/* Declare _start with an explicit assembly symbol name of `start'
- (note no leading underscore). This is the name Sun's crt0.o uses,
- and programs are often linked with `ld -e start'. */
-void _start (void) asm ("start");
-#endif
-
-void
-_start (void)
-{
- /* It is important that these be declared `register'.
- Otherwise, when compiled without optimization, they are put on the
- stack, which loses completely after we zero the FP. */
- register int argc;
- register char **argv, **envp;
-
- /* Unwind the frame built when we entered the function. */
- asm("restore");
-
- /* And clear the frame pointer. */
- fp = 0;
-
- /* The argument info starts after one register
- window (64 bytes) past the SP. */
- argc = ((int *) sp)[16];
- argv = (char **) &((int *) sp)[17];
- envp = &argv[argc + 1];
- __environ = envp;
-
-#ifndef NO_SHLIB
- init_shlib ();
-#endif
-
- /* Allocate 24 bytes of stack space for the register save area. */
- sp -= 24;
- __libc_init (argc, argv, envp);
-
- exit (main (argc, argv, envp));
-}
-\f
-#ifndef NO_SHLIB
-
-/* System calls for use by the bootstrap routine.
- These are defined here since the usual calls may be dynamically linked. */
-
-int syscall (int sysno, ...) asm ("init_syscall");
-asm ("init_syscall:\n"
- " clr %g1\n"
- " ta 0\n"
- " bcc 1f\n"
- " sethi %hi(_errno), %g1\n"
- " st %o0, [%g1 + %lo(_errno)]\n"
- " sub %g0, 1, %o0\n"
- "1:retl\n"
- " nop");
-
-static void
-init_shlib ()
-{
- extern struct link_dynamic _DYNAMIC;
- int so, zf;
- caddr_t somap;
- caddr_t sodmap;
- caddr_t sobssmap;
- void (*ldstart) (int, int);
- struct exec soexec;
- struct
- {
- caddr_t crt_ba;
- int crt_dzfd;
- int crt_ldfd;
- struct link_dynamic *crt_dp;
- char **crt_ep;
- caddr_t crt_bp;
- } soarg;
-
- /* If not dynamically linked, do nothing. */
- if (&_DYNAMIC == 0)
- return;
-
- /* Map in the dynamic linker. */
- so = syscall (SYS_open, "/usr/lib/ld.so", O_RDONLY);
- if (syscall (SYS_read, so, &soexec, sizeof (soexec)) != sizeof (soexec)
- || soexec.a_magic != ZMAGIC)
- {
- static const char emsg[] = "crt0: no /usr/lib/ld.so\n";
-
- syscall (SYS_write, 2, emsg, sizeof (emsg) - 1);
- syscall (SYS_exit, 127);
- }
- somap = (caddr_t) syscall (SYS_mmap, 0,
- soexec.a_text + soexec.a_data + soexec.a_bss,
- PROT_READ | PROT_EXEC, _MAP_NEW | MAP_PRIVATE,
- so, 0);
- sodmap = (caddr_t) syscall (SYS_mmap, somap + soexec.a_text, soexec.a_data,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- _MAP_NEW | MAP_FIXED | MAP_PRIVATE,
- so, soexec.a_text);
- zf = syscall (SYS_open, "/dev/zero", O_RDONLY);
- if (soexec.a_bss != 0)
- sobssmap = (caddr_t) syscall (SYS_mmap,
- somap + soexec.a_text + soexec.a_data,
- soexec.a_bss,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- _MAP_NEW | MAP_FIXED | MAP_PRIVATE,
- zf, 0);
-
- /* Call the entry point of the dynamic linker. */
- soarg.crt_ba = somap;
- soarg.crt_dzfd = zf;
- soarg.crt_ldfd = so;
- soarg.crt_dp = &_DYNAMIC;
- soarg.crt_ep = __environ;
- soarg.crt_bp = (caddr_t) &&retaddr;
-
- ldstart = (__typeof (ldstart)) (somap + soexec.a_entry);
- (*ldstart) (1, (char *) &soarg - (char *) sp);
-
- retaddr:
-}
-
-#endif
+++ /dev/null
-/* Copyright (C) 1991, 93, 1995-1998, 2000, 2012 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
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- In addition to the permissions in the GNU Lesser General Public
- License, the Free Software Foundation gives you unlimited
- permission to link the compiled version of this file with other
- programs, and to distribute those programs without any restriction
- coming from the use of this file. (The GNU Lesser General Public
- License restrictions do apply in other respects; for example, they
- cover modification of the file, and distribution when not linked
- into another program.)
-
- Note that people who make modified versions of this file are not
- obligated to grant this special exception for their modified
- versions; it is their choice whether to do so. The GNU Lesser
- General Public License gives permission to release a modified
- version without this exception; this exception also makes it
- possible to release a modified version which carries forward this
- exception.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sysdep.h> /* In case it wants to define anything. */
-
-/* The first piece of initialized data. */
-int __data_start = 0;
-weak_alias (__data_start, data_start)
-
-#ifdef DUMMIES
-#define ARG_DUMMIES DUMMIES,
-#define DECL_DUMMIES int DUMMIES;
-#else
-#define ARG_DUMMIES
-#define DECL_DUMMIES
-#endif
-
-extern void __libc_init (int argc, char **argv, char **envp);
-extern int main (int argc, char **argv, char **envp);
-
-
-/* Not a prototype because it gets called strangely. */
-static void start1();
-
-#ifndef HAVE__start
-
-/* N.B.: It is important that this be the first function.
- This file is the first thing in the text section. */
-void
-_start ()
-{
- start1 ();
-}
-
-#endif
-
-/* ARGSUSED */
-static void
-start1 (ARG_DUMMIES argc, argp)
- DECL_DUMMIES
- int argc;
- char *argp;
-{
- char **argv = &argp;
-
- /* The environment starts just after ARGV. */
- __environ = &argv[argc + 1];
-
- /* If the first thing after ARGV is the arguments
- themselves, there is no environment. */
- if ((char *) __environ == *argv)
- /* The environment is empty. Make __environ
- point at ARGV[ARGC], which is NULL. */
- --__environ;
-
- /* Do C library initializations. */
- __libc_init (argc, argv, __environ);
-
- /* Call the user program. */
- exit (main (argc, argv, __environ));
-}