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libc: Add NetBSD libc startup code from 10.1.

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* sysident_assym.h was manually expanded.
    * The ELF_NOTE_MARCH_DESC and ELF_NOTE_MARCH_DESCSZ macros will be defined
      by the compiler.
* Legacy .init/.fini stuff was removed.
* GCJ nonsense was removed.
This commit is contained in:
Alex Rønne Petersen 2025-05-13 01:32:35 +02:00
parent 35f8121194
commit 1c342ca7c3
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14 changed files with 1108 additions and 0 deletions
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45
lib/libc/netbsd/lib/csu/arch/aarch64/crt0.S vendored Normal file
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/* $NetBSD: crt0.S,v 1.2 2018/11/26 17:37:44 joerg Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 <aarch64/asm.h>
RCSID("$NetBSD: crt0.S,v 1.2 2018/11/26 17:37:44 joerg Exp $")
STRONG_ALIAS(_start,__start)
_ENTRY(__start)
/*
* void ___start(void (*cleanup)(void),
* struct ps_strings *ps_strings);
*/
mov x1, x2
b ___start
END(__start)

61
lib/libc/netbsd/lib/csu/arch/earm/crt0.S vendored Normal file
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/* $NetBSD: crt0.S,v 1.4 2018/11/26 17:37:44 joerg Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 <arm/asm.h>
RCSID("$NetBSD: crt0.S,v 1.4 2018/11/26 17:37:44 joerg Exp $")
STRONG_ALIAS(_start,__start)
_ENTRY(__start)
/*
* ps_strings is passed in r0 and cleanup in r2.
* It should be ps_string in r1 and cleanup in r0.
*/
mov r1, r0
mov r0, r2
/* Ensure the stack is properly aligned before calling C code. */
#if !defined(__thumb__)
bic sp, sp, #7
#else
movs r6, #7
mov r7, sp
bics r7, r7, r6
mov sp, r7
#endif
/*
* void ___start(void (*cleanup)(void),
* struct ps_strings *ps_strings);
*/
b ___start

48
lib/libc/netbsd/lib/csu/arch/i386/crt0.S vendored Normal file
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/* $NetBSD: crt0.S,v 1.4 2018/11/26 17:37:45 joerg Exp $ */
/*
* Copyright (c) 1998 Christos Zoulas
* 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
* 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.
*
* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
*/
#include <machine/asm.h>
RCSID("$NetBSD: crt0.S,v 1.4 2018/11/26 17:37:45 joerg Exp $")
.hidden ___start
STRONG_ALIAS(_start,__start)
_ENTRY(__start)
pushl %ebx
pushl %edx
call ___start

47
lib/libc/netbsd/lib/csu/arch/m68k/crt0.S vendored Normal file
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#include <machine/asm.h>
/*
* Copyright (c) 1999 Klaus Klein
* 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
* 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.
*
* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
*/
RCSID("$NetBSD: crt0.S,v 1.5 2018/11/26 17:37:45 joerg Exp $")
STRONG_ALIAS(_start,__start)
_ENTRY(__start)
movl %a2,-(%sp) | ps_strings
movl %a1,-(%sp) | cleanup
| call: ___start(cleanup, ps_strings)
jbsr ___start
END(__start)

59
lib/libc/netbsd/lib/csu/arch/mips/crt0.S vendored Normal file
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/* $NetBSD: crt0.S,v 1.4 2018/11/26 17:37:45 joerg Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 <mips/asm.h>
RCSID("$NetBSD: crt0.S,v 1.4 2018/11/26 17:37:45 joerg Exp $")
STRONG_ALIAS(_start,__start)
/*
* Assumes kernel (or ld_elf.so) passes the following parameters to
* user-space in registers:
*
* a0 stack pointer (0 if setregs didn't fill this in)
* a1 cleanup
* a2 Obj_Entry
* a3 ps_strings
*
* XXX Does this violate the ABI?
* as well as the usual registers (pc, sp, and t9 == pc for ABI).
*/
NESTED_NOPROFILE(__start, CALLFRAME_SIZ, ra)
SETUP_GP
SETUP_GP64(t3, __start)
move a0, a1 /* cleanup */
PTR_L t9,%call16(_C_LABEL(___start))(gp)
move a1, a3 /* ps_strings */
.reloc 1f,R_MIPS_JALR,___start
1: jr t9
END(__start)

56
lib/libc/netbsd/lib/csu/arch/powerpc/crt0.S vendored Normal file
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/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 <powerpc/asm.h>
RCSID("$NetBSD: crt0.S,v 1.7 2018/11/26 17:37:45 joerg Exp $")
STRONG_ALIAS(_start,__start)
.hidden ___start
#ifndef _LP64
.weak _SDA_BASE_
#endif
ENTRY_NOPROFILE(__start)
#ifndef _LP64
bcl 20,31,1f
1:
mflr %r11
/* SVR4 ABI says small data is in r13 */
addis %r13,%r11,_SDA_BASE_-1b@ha
addi %r13,%r13,_SDA_BASE_-1b@l
#endif
mr %r3,%r7 /* cleanup */
mr %r4,%r8 /* ps_strings */
CALL(___start)
END(__start)

55
lib/libc/netbsd/lib/csu/arch/sparc/crt0.S vendored Normal file
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/* $NetBSD: crt0.S,v 1.3 2018/11/26 17:37:45 joerg Exp $ */
/*
* Copyright (c) 1998 Christos Zoulas
* 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
* 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.
*
* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
*/
#include <machine/asm.h>
RCSID("$NetBSD: crt0.S,v 1.3 2018/11/26 17:37:45 joerg Exp $")
STRONG_ALIAS(_start,__start)
! called with:
! %g3 = cleanup
! %g1 = ps_strings
! call: ___start(cleanup, ps_strings)
_ENTRY(__start)
mov 0, %fp
andn %sp, 7, %sp ! align stack
sub %sp, 24, %sp ! expand to standard stack frame size
mov %g3, %o0
call ___start
mov %g1, %o1

59
lib/libc/netbsd/lib/csu/arch/sparc64/crt0.S vendored Normal file
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/* $NetBSD: crt0.S,v 1.2 2018/11/26 17:37:46 joerg Exp $ */
/*
* Copyright (c) 1998 Christos Zoulas
* 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
* 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.
*
* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
*/
#include <machine/asm.h>
RCSID("$NetBSD: crt0.S,v 1.2 2018/11/26 17:37:46 joerg Exp $")
STRONG_ALIAS(_start,__start)
.align 4
.register %g3,#scratch
.register %g2,#scratch
! called with:
! %g3 = cleanup
! %g2 = obj
! %g1 = ps_strings
! call: ___start(cleanup, ps_strings)
_ENTRY(__start)
clr %fp
clr %g4 ! data base for some memory models
mov %g3, %o0
ba,pt %icc,___start
mov %g1, %o1

48
lib/libc/netbsd/lib/csu/arch/x86_64/crt0.S vendored Normal file
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/* $NetBSD: crt0.S,v 1.4 2018/11/26 17:37:46 joerg Exp $ */
/*
* Copyright (c) 1998 Christos Zoulas
* 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
* 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 <machine/asm.h>
RCSID("$NetBSD: crt0.S,v 1.4 2018/11/26 17:37:46 joerg Exp $")
STRONG_ALIAS(_start,__start)
.hidden ___start
_ENTRY(__start)
andq $~15,%rsp
subq $8,%rsp
movq %rdx, %rdi
movq %rbx, %rsi
jmp ___start

351
lib/libc/netbsd/lib/csu/common/crt0-common.c vendored Normal file
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/* $NetBSD: crt0-common.c,v 1.27 2022/06/21 06:52:17 skrll Exp $ */
/*
* Copyright (c) 1998 Christos Zoulas
* 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
* 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.
*
* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: crt0-common.c,v 1.27 2022/06/21 06:52:17 skrll Exp $");
#include <sys/types.h>
#include <sys/exec.h>
#include <sys/exec_elf.h>
#include <sys/syscall.h>
#include <machine/profile.h>
#include <stdlib.h>
#include <unistd.h>
#include "csu-common.h"
extern int main(int, char **, char **);
typedef void (*fptr_t)(void);
#ifndef HAVE_INITFINI_ARRAY
extern void _init(void);
extern void _fini(void);
#endif
extern void _libc_init(void);
/*
* Arrange for _DYNAMIC to be weak and undefined (and therefore to show up
* as being at address zero, unless something else defines it). That way,
* if we happen to be compiling without -static but with without any
* shared libs present, things will still work.
*/
__weakref_visible int rtld_DYNAMIC __weak_reference(_DYNAMIC);
#ifdef MCRT0
extern void monstartup(u_long, u_long);
extern void _mcleanup(void);
extern unsigned char __etext, __eprol;
#endif /* MCRT0 */
static char empty_string[] = "";
char **environ __common;
struct ps_strings *__ps_strings __common = 0;
char *__progname __common = empty_string;
__dead __dso_hidden void ___start(void (*)(void), struct ps_strings *);
#define write(fd, s, n) __syscall(SYS_write, (fd), (s), (n))
#define _FATAL(str) \
do { \
write(2, str, sizeof(str)-1); \
_exit(1); \
} while (0)
/*
* If we are using INIT_ARRAY/FINI_ARRAY and we are linked statically,
* we have to process these instead of relying on RTLD to do it for us.
*
* Since we don't need .init or .fini sections, just code them in C
* to make life easier.
*/
extern const fptr_t __preinit_array_start[] __dso_hidden;
extern const fptr_t __preinit_array_end[] __dso_hidden __weak;
extern const fptr_t __init_array_start[] __dso_hidden;
extern const fptr_t __init_array_end[] __dso_hidden __weak;
extern const fptr_t __fini_array_start[] __dso_hidden;
extern const fptr_t __fini_array_end[] __dso_hidden __weak;
static inline void
_preinit(void)
{
for (const fptr_t *f = __preinit_array_start; f < __preinit_array_end; f++) {
(*f)();
}
}
static inline void
_initarray(void)
{
for (const fptr_t *f = __init_array_start; f < __init_array_end; f++) {
(*f)();
}
}
static void
_finiarray(void)
{
for (const fptr_t *f = __fini_array_start; f < __fini_array_end; f++) {
(*f)();
}
}
#if \
defined(__aarch64__) || \
defined(__powerpc__) || \
defined(__sparc__) || \
defined(__x86_64__)
#define HAS_IPLTA
static void fix_iplta(void) __noinline;
#elif \
defined(__arm__) || \
defined(__i386__)
#define HAS_IPLT
static void fix_iplt(void) __noinline;
#endif
#ifdef HAS_IPLTA
#include <stdio.h>
extern const Elf_Rela __rela_iplt_start[] __dso_hidden __weak;
extern const Elf_Rela __rela_iplt_end[] __dso_hidden __weak;
#ifdef __sparc__
#define IFUNC_RELOCATION R_TYPE(JMP_IREL)
#include <machine/elf_support.h>
#define write_plt(where, value) sparc_write_branch((void *)where, (void *)value)
#else
#define IFUNC_RELOCATION R_TYPE(IRELATIVE)
#define write_plt(where, value) *where = value
#endif
static void
fix_iplta(void)
{
const Elf_Rela *rela, *relalim;
uintptr_t relocbase = 0;
Elf_Addr *where, target;
rela = __rela_iplt_start;
relalim = __rela_iplt_end;
for (; rela < relalim; ++rela) {
if (ELF_R_TYPE(rela->r_info) != IFUNC_RELOCATION)
abort();
where = (Elf_Addr *)(relocbase + rela->r_offset);
target = (Elf_Addr)(relocbase + rela->r_addend);
target = ((Elf_Addr(*)(void))target)();
write_plt(where, target);
}
}
#endif
#ifdef HAS_IPLT
extern const Elf_Rel __rel_iplt_start[] __dso_hidden __weak;
extern const Elf_Rel __rel_iplt_end[] __dso_hidden __weak;
#define IFUNC_RELOCATION R_TYPE(IRELATIVE)
static void
fix_iplt(void)
{
const Elf_Rel *rel, *rellim;
uintptr_t relocbase = 0;
Elf_Addr *where, target;
rel = __rel_iplt_start;
rellim = __rel_iplt_end;
for (; rel < rellim; ++rel) {
if (ELF_R_TYPE(rel->r_info) != IFUNC_RELOCATION)
abort();
where = (Elf_Addr *)(relocbase + rel->r_offset);
target = ((Elf_Addr(*)(void))*where)();
*where = target;
}
}
#endif
#if defined(__x86_64__) || defined(__i386__)
# define HAS_RELOCATE_SELF
# if defined(__x86_64__)
# define RELA
# define REL_TAG DT_RELA
# define RELSZ_TAG DT_RELASZ
# define REL_TYPE Elf_Rela
# else
# define REL_TAG DT_REL
# define RELSZ_TAG DT_RELSZ
# define REL_TYPE Elf_Rel
# endif
#include <elf.h>
static void relocate_self(struct ps_strings *) __noinline;
static void
relocate_self(struct ps_strings *ps_strings)
{
AuxInfo *aux = (AuxInfo *)(ps_strings->ps_argvstr + ps_strings->ps_nargvstr +
ps_strings->ps_nenvstr + 2);
uintptr_t relocbase = (uintptr_t)~0U;
const Elf_Phdr *phdr = NULL;
Elf_Half phnum = (Elf_Half)~0;
for (; aux->a_type != AT_NULL; ++aux) {
switch (aux->a_type) {
case AT_BASE:
if (aux->a_v)
return;
break;
case AT_PHDR:
phdr = (void *)aux->a_v;
break;
case AT_PHNUM:
phnum = (Elf_Half)aux->a_v;
break;
}
}
if (phdr == NULL || phnum == (Elf_Half)~0)
return;
const Elf_Phdr *phlimit = phdr + phnum, *dynphdr = NULL;
for (; phdr < phlimit; ++phdr) {
if (phdr->p_type == PT_DYNAMIC)
dynphdr = phdr;
if (phdr->p_type == PT_PHDR)
relocbase = (uintptr_t)phdr - phdr->p_vaddr;
}
if (dynphdr == NULL || relocbase == (uintptr_t)~0U)
return;
Elf_Dyn *dynp = (Elf_Dyn *)((uint8_t *)dynphdr->p_vaddr + relocbase);
const REL_TYPE *relocs = 0, *relocslim;
Elf_Addr relocssz = 0;
for (; dynp->d_tag != DT_NULL; dynp++) {
switch (dynp->d_tag) {
case REL_TAG:
relocs =
(const REL_TYPE *)(relocbase + dynp->d_un.d_ptr);
break;
case RELSZ_TAG:
relocssz = dynp->d_un.d_val;
break;
}
}
relocslim = (const REL_TYPE *)((const uint8_t *)relocs + relocssz);
for (; relocs < relocslim; ++relocs) {
Elf_Addr *where;
where = (Elf_Addr *)(relocbase + relocs->r_offset);
switch (ELF_R_TYPE(relocs->r_info)) {
case R_TYPE(RELATIVE): /* word64 B + A */
#ifdef RELA
*where = (Elf_Addr)(relocbase + relocs->r_addend);
#else
*where += (Elf_Addr)relocbase;
#endif
break;
#ifdef IFUNC_RELOCATION
case IFUNC_RELOCATION:
break;
#endif
default:
abort();
}
}
}
#endif
void
___start(void (*cleanup)(void), /* from shared loader */
struct ps_strings *ps_strings)
{
#if defined(HAS_RELOCATE_SELF)
relocate_self(ps_strings);
#endif
if (ps_strings == NULL)
_FATAL("ps_strings missing\n");
__ps_strings = ps_strings;
environ = ps_strings->ps_envstr;
if (ps_strings->ps_argvstr[0] != NULL) {
char *c;
__progname = ps_strings->ps_argvstr[0];
for (c = ps_strings->ps_argvstr[0]; *c; ++c) {
if (*c == '/')
__progname = c + 1;
}
} else {
__progname = empty_string;
}
if (cleanup != NULL)
atexit(cleanup);
_libc_init();
if (&rtld_DYNAMIC == NULL) {
#ifdef HAS_IPLTA
fix_iplta();
#endif
#ifdef HAS_IPLT
fix_iplt();
#endif
}
_preinit();
#ifdef MCRT0
atexit(_mcleanup);
monstartup((u_long)&__eprol, (u_long)&__etext);
#endif
atexit(_finiarray);
_initarray();
#ifndef HAVE_INITFINI_ARRAY
atexit(_fini);
_init();
#endif
exit(main(ps_strings->ps_nargvstr, ps_strings->ps_argvstr, environ));
}

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/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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>
__RCSID("$NetBSD: crtbegin.c,v 1.17 2018/12/28 18:17:11 christos Exp $");
/* zig patch: no crtbegin.h */
typedef void (*fptr_t)(void);
/* zig patch: remove gcj nonsense */
#if !defined(HAVE_INITFINI_ARRAY)
extern __dso_hidden const fptr_t __CTOR_LIST__start __asm("__CTOR_LIST__");
__dso_hidden const fptr_t __aligned(sizeof(void *)) __CTOR_LIST__[] __section(".ctors") = {
(fptr_t) -1,
};
__dso_hidden extern const fptr_t __CTOR_LIST_END__[];
#endif
#ifdef SHARED
__dso_hidden void *__dso_handle = &__dso_handle;
__weakref_visible void cxa_finalize(void *)
__weak_reference(__cxa_finalize);
#else
__dso_hidden void *__dso_handle;
#endif
#if !defined(__ARM_EABI__) || defined(__ARM_DWARF_EH__)
__dso_hidden const long __EH_FRAME_LIST__[0] __section(".eh_frame");
__weakref_visible void register_frame_info(const void *, const void *)
__weak_reference(__register_frame_info);
__weakref_visible void deregister_frame_info(const void *)
__weak_reference(__deregister_frame_info);
static long dwarf_eh_object[8];
#endif
static void __do_global_ctors_aux(void) __used;
/* zig patch: use .init_array */
__attribute__((constructor))
static void
__do_global_ctors_aux(void)
{
static unsigned char __initialized;
if (__initialized)
return;
__initialized = 1;
#if !defined(__ARM_EABI__) || defined(__ARM_DWARF_EH__)
if (register_frame_info)
register_frame_info(__EH_FRAME_LIST__, &dwarf_eh_object);
#endif
/* zig patch: remove gcj nonsense */
#if !defined(HAVE_INITFINI_ARRAY)
for (const fptr_t *p = __CTOR_LIST_END__; p > &__CTOR_LIST__start + 1; ) {
(*(*--p))();
}
#endif
}
#if !defined(__ARM_EABI__) || defined(SHARED) || defined(__ARM_DWARF_EH__)
#if !defined(HAVE_INITFINI_ARRAY)
extern __dso_hidden const fptr_t __DTOR_LIST__start __asm("__DTOR_LIST__");
__dso_hidden const fptr_t __aligned(sizeof(void *)) __DTOR_LIST__[] __section(".dtors") = {
(fptr_t) -1,
};
__dso_hidden extern const fptr_t __DTOR_LIST_END__[];
#endif
static void __do_global_dtors_aux(void) __used;
/* zig patch: use .fini_array */
__attribute__((destructor))
static void
__do_global_dtors_aux(void)
{
static unsigned char __finished;
if (__finished)
return;
__finished = 1;
#ifdef SHARED
if (cxa_finalize)
(*cxa_finalize)(__dso_handle);
#endif
#if !defined(HAVE_INITFINI_ARRAY)
for (const fptr_t *p = &__DTOR_LIST__start + 1; p < __DTOR_LIST_END__; ) {
(*(*p++))();
}
#endif
#if !defined(__ARM_EABI__) || defined(__ARM_DWARF_EH__)
if (deregister_frame_info)
deregister_frame_info(__EH_FRAME_LIST__);
#endif
}
#endif /* !__ARM_EABI__ || SHARED || __ARM_DWARF_EH__ */

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lib/libc/netbsd/lib/csu/common/csu-common.h vendored Normal file
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/*-
* Copyright (c) 2021 The NetBSD Foundation, Inc.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* For historical reasons the following symbols are defined both in libc
* and csu and need to be common
*/
#if __has_attribute(__common__)
#define __common __attribute((__common__))
#else
#define __common
#endif
extern char *__progname __common;
extern char **environ __common;
extern struct ps_strings *__ps_strings __common;

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/* $NetBSD: sysident.S,v 1.3 2014/05/14 14:59:14 joerg Exp $ */
/*
* Copyright (c) 1997 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
* 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.
*
* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
*/
/*
* Here we define the NetBSD OS Version in an ELF .note section, structured
* like:
*
* [NOTE HEADER]
* long name size
* long description size
* long note type
*
* [NOTE DATUM]
* string OS name
*
* OSVERSION notes also have:
* long OS version (__NetBSD_Version__ constant from param.h)
*
* The DATUM fields should be padded out such that their actual (not
* declared) sizes % 4 == 0.
*
* These are used by the kernel to determine if this binary is really a
* NetBSD binary, or some other OS's.
*/
#include "sysident_assym.h"
.section ".note.netbsd.ident", "a"
.p2align 2
.long ELF_NOTE_NETBSD_NAMESZ
.long ELF_NOTE_NETBSD_DESCSZ
.long ELF_NOTE_TYPE_NETBSD_TAG
.ascii "NetBSD\0\0" /* ELF_NOTE_NETBSD_NAME */
.long __NetBSD_Version__
.section ".note.netbsd.pax", "a"
.p2align 2
.long ELF_NOTE_PAX_NAMESZ
.long ELF_NOTE_PAX_DESCSZ
.long ELF_NOTE_TYPE_PAX_TAG
.ascii "PaX\0" /* ELF_NOTE_PAX_NAME */
.long 0
#ifdef ELF_NOTE_MARCH_DESC
.section ".note.netbsd.march", "a"
.p2align 2
.long ELF_NOTE_MARCH_NAMESZ
.long ELF_NOTE_MARCH_DESCSZ
.long ELF_NOTE_TYPE_MARCH_TAG
.ascii "NetBSD\0\0"
.asciz ELF_NOTE_MARCH_DESC
.p2align 2
#endif

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lib/libc/netbsd/lib/csu/common/sysident_assym.h vendored Normal file
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/* zig patch: manually expanded from sysident_assym.cf */
#define ELF_NOTE_NETBSD_NAMESZ 7
#define ELF_NOTE_NETBSD_DESCSZ 4
#define ELF_NOTE_TYPE_NETBSD_TAG 1
#define ELF_NOTE_PAX_NAMESZ 4
#define ELF_NOTE_PAX_DESCSZ 4
#define ELF_NOTE_TYPE_PAX_TAG 3
/* zig patch: ELF_NOTE_MARCH_DESC and ELF_NOTE_MARCH_DESCSZ defined by the compiler */
#ifdef ELF_NOTE_MARCH_DESC
#define ELF_NOTE_MARCH_NAMESZ 7
#define ELF_NOTE_TYPE_MARCH_TAG 5
#endif
#define ELF_NOTE_MCMODEL_NAMESZ 7
#define ELF_NOTE_TYPE_MCMODEL_TAG 6