b1808a1ecf
The ELF notes compiled in C were placed in a section with the wrong type (SHT_PROGBITS instead of SHT_NOTE). Previously, sed was used on the generated assembly to rewrite the section type. Instead, write the notes in assembly which permits setting the correct section type directly. While here, move inline assembly entry points out of C and into assembly for aarch64, arm, and riscv. Reviewed by: kib Tested on: amd64 (cirrus-ci), riscv64 Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D25211
110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
/* LINTLIBRARY */
|
|
/*-
|
|
* SPDX-License-Identifier: BSD-4-Clause
|
|
*
|
|
* Copyright 2001 David E. O'Brien.
|
|
* All rights reserved.
|
|
* Copyright 1996-1998 John D. Polstra.
|
|
* All rights reserved.
|
|
* Copyright (c) 1997 Jason R. Thorpe.
|
|
* Copyright (c) 1995 Christopher G. Demetriou
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed for the
|
|
* FreeBSD Project. See https://www.freebsd.org/ for
|
|
* information about FreeBSD.
|
|
* This product includes software developed for the
|
|
* NetBSD Project. See http://www.netbsd.org/ for
|
|
* information about NetBSD.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* 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 <stdlib.h>
|
|
|
|
#include "libc_private.h"
|
|
#include "ignore_init.c"
|
|
|
|
struct Struct_Obj_Entry;
|
|
struct ps_strings;
|
|
|
|
#ifdef GCRT
|
|
extern void _mcleanup(void);
|
|
extern void monstartup(void *, void *);
|
|
extern int eprol;
|
|
extern int etext;
|
|
#endif
|
|
|
|
struct ps_strings *__ps_strings;
|
|
|
|
void _start(int, char **, char **, const struct Struct_Obj_Entry *,
|
|
void (*)(void), struct ps_strings *);
|
|
|
|
/* The entry function. */
|
|
/*
|
|
* First 5 arguments are specified by the PowerPC SVR4 ABI.
|
|
* The last argument, ps_strings, is a BSD extension.
|
|
*/
|
|
/* ARGSUSED */
|
|
void
|
|
_start(int argc, char **argv, char **env,
|
|
const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void),
|
|
struct ps_strings *ps_strings)
|
|
{
|
|
|
|
|
|
handle_argv(argc, argv, env);
|
|
|
|
if (ps_strings != (struct ps_strings *)0)
|
|
__ps_strings = ps_strings;
|
|
|
|
if (&_DYNAMIC != NULL)
|
|
atexit(cleanup);
|
|
else
|
|
_init_tls();
|
|
|
|
#ifdef GCRT
|
|
atexit(_mcleanup);
|
|
monstartup(&eprol, &etext);
|
|
#endif
|
|
|
|
handle_static_init(argc, argv, env);
|
|
exit(main(argc, argv, env));
|
|
}
|
|
|
|
#ifdef GCRT
|
|
__asm__(".text");
|
|
__asm__("eprol:");
|
|
__asm__(".previous");
|
|
#endif
|
|
|
|
#ifndef PIC
|
|
__asm__(".text\n"
|
|
"\t.global _GLOBAL_OFFSET_TABLE_\n"
|
|
"\t.reloc 0, R_PPC_NONE, _GLOBAL_OFFSET_TABLE_");
|
|
#endif
|