From a36dcef7dc513b2d63c1666c172b527a93f90fac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= Date: Tue, 22 Apr 2025 08:04:16 +0200 Subject: [PATCH] libc: Add FreeBSD libc startup code from 14.2.0. * NT_FREEBSD_ABI_TAG was manually adjusted from using a hardcoded value to using __FreeBSD_version which will be defined by the compiler. * GCJ stuff was removed. * HAVE_CTORS definitions were removed. --- lib/libc/freebsd/COPYRIGHT | 125 +++++ lib/libc/freebsd/lib/csu/aarch64/crt.h | 1 + lib/libc/freebsd/lib/csu/aarch64/crt1_c.c | 33 ++ lib/libc/freebsd/lib/csu/aarch64/crt1_s.S | 68 +++ lib/libc/freebsd/lib/csu/amd64/crt.h | 30 ++ lib/libc/freebsd/lib/csu/amd64/crt1_c.c | 30 ++ lib/libc/freebsd/lib/csu/amd64/crt1_s.S | 89 ++++ lib/libc/freebsd/lib/csu/arm/crt.h | 1 + lib/libc/freebsd/lib/csu/arm/crt1_c.c | 80 ++++ lib/libc/freebsd/lib/csu/arm/crt1_s.S | 77 +++ lib/libc/freebsd/lib/csu/common/crtbegin.c | 95 ++++ lib/libc/freebsd/lib/csu/common/crtbrand.S | 55 +++ lib/libc/freebsd/lib/csu/common/crtend.c | 65 +++ lib/libc/freebsd/lib/csu/common/csu_common.h | 50 ++ .../freebsd/lib/csu/common/feature_note.S | 47 ++ .../freebsd/lib/csu/common/ignore_init_note.S | 48 ++ lib/libc/freebsd/lib/csu/common/notes.h | 32 ++ lib/libc/freebsd/lib/csu/i386/crt.h | 30 ++ lib/libc/freebsd/lib/csu/i386/crt1_c.c | 30 ++ lib/libc/freebsd/lib/csu/i386/crt1_s.S | 91 ++++ lib/libc/freebsd/lib/csu/powerpc/crt.h | 31 ++ lib/libc/freebsd/lib/csu/powerpc/crt1_c.c | 89 ++++ lib/libc/freebsd/lib/csu/powerpc/crtsavres.S | 189 ++++++++ lib/libc/freebsd/lib/csu/powerpc64/crt.h | 31 ++ lib/libc/freebsd/lib/csu/powerpc64/crt1_c.c | 83 ++++ lib/libc/freebsd/lib/csu/riscv/crt.h | 8 + lib/libc/freebsd/lib/csu/riscv/crt1_c.c | 51 ++ lib/libc/freebsd/lib/csu/riscv/crt1_s.S | 51 ++ .../freebsd/lib/libc/include/libc_private.h | 450 ++++++++++++++++++ 29 files changed, 2060 insertions(+) create mode 100644 lib/libc/freebsd/COPYRIGHT create mode 100644 lib/libc/freebsd/lib/csu/aarch64/crt.h create mode 100644 lib/libc/freebsd/lib/csu/aarch64/crt1_c.c create mode 100644 lib/libc/freebsd/lib/csu/aarch64/crt1_s.S create mode 100644 lib/libc/freebsd/lib/csu/amd64/crt.h create mode 100644 lib/libc/freebsd/lib/csu/amd64/crt1_c.c create mode 100644 lib/libc/freebsd/lib/csu/amd64/crt1_s.S create mode 100644 lib/libc/freebsd/lib/csu/arm/crt.h create mode 100644 lib/libc/freebsd/lib/csu/arm/crt1_c.c create mode 100644 lib/libc/freebsd/lib/csu/arm/crt1_s.S create mode 100644 lib/libc/freebsd/lib/csu/common/crtbegin.c create mode 100644 lib/libc/freebsd/lib/csu/common/crtbrand.S create mode 100644 lib/libc/freebsd/lib/csu/common/crtend.c create mode 100644 lib/libc/freebsd/lib/csu/common/csu_common.h create mode 100644 lib/libc/freebsd/lib/csu/common/feature_note.S create mode 100644 lib/libc/freebsd/lib/csu/common/ignore_init_note.S create mode 100644 lib/libc/freebsd/lib/csu/common/notes.h create mode 100644 lib/libc/freebsd/lib/csu/i386/crt.h create mode 100644 lib/libc/freebsd/lib/csu/i386/crt1_c.c create mode 100644 lib/libc/freebsd/lib/csu/i386/crt1_s.S create mode 100644 lib/libc/freebsd/lib/csu/powerpc/crt.h create mode 100644 lib/libc/freebsd/lib/csu/powerpc/crt1_c.c create mode 100644 lib/libc/freebsd/lib/csu/powerpc/crtsavres.S create mode 100644 lib/libc/freebsd/lib/csu/powerpc64/crt.h create mode 100644 lib/libc/freebsd/lib/csu/powerpc64/crt1_c.c create mode 100644 lib/libc/freebsd/lib/csu/riscv/crt.h create mode 100644 lib/libc/freebsd/lib/csu/riscv/crt1_c.c create mode 100644 lib/libc/freebsd/lib/csu/riscv/crt1_s.S create mode 100644 lib/libc/freebsd/lib/libc/include/libc_private.h diff --git a/lib/libc/freebsd/COPYRIGHT b/lib/libc/freebsd/COPYRIGHT new file mode 100644 index 0000000000..9ed4f98d95 --- /dev/null +++ b/lib/libc/freebsd/COPYRIGHT @@ -0,0 +1,125 @@ +# @(#)COPYRIGHT 8.2 (Berkeley) 3/21/94 + +The compilation of software known as FreeBSD is distributed under the +following terms: + +Copyright (c) 1992-2023 The FreeBSD Project. + +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 AUTHOR 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 AUTHOR 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. + +The 4.4BSD and 4.4BSD-Lite software is distributed under the following +terms: + +All of the documentation and software included in the 4.4BSD and 4.4BSD-Lite +Releases is copyrighted by The Regents of the University of California. + +Copyright 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 + The Regents of the University of California. 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 by the University of +California, Berkeley and its contributors. +4. Neither the name of the University nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + +The Institute of Electrical and Electronics Engineers and the American +National Standards Committee X3, on Information Processing Systems have +given us permission to reprint portions of their documentation. + +In the following statement, the phrase ``this text'' refers to portions +of the system documentation. + +Portions of this text are reprinted and reproduced in electronic form in +the second BSD Networking Software Release, from IEEE Std 1003.1-1988, IEEE +Standard Portable Operating System Interface for Computer Environments +(POSIX), copyright C 1988 by the Institute of Electrical and Electronics +Engineers, Inc. In the event of any discrepancy between these versions +and the original IEEE Standard, the original IEEE Standard is the referee +document. + +In the following statement, the phrase ``This material'' refers to portions +of the system documentation. + +This material is reproduced with permission from American National +Standards Committee X3, on Information Processing Systems. Computer and +Business Equipment Manufacturers Association (CBEMA), 311 First St., NW, +Suite 500, Washington, DC 20001-2178. The developmental work of +Programming Language C was completed by the X3J11 Technical Committee. + +The views and conclusions contained in the software and documentation are +those of the authors and should not be interpreted as representing official +policies, either expressed or implied, of the Regents of the University +of California. + + +NOTE: The copyright of UC Berkeley's Berkeley Software Distribution ("BSD") +source has been updated. The copyright addendum may be found at +ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change and is +included below. + +July 22, 1999 + +To All Licensees, Distributors of Any Version of BSD: + +As you know, certain of the Berkeley Software Distribution ("BSD") source +code files require that further distributions of products containing all or +portions of the software, acknowledge within their advertising materials +that such products contain software developed by UC Berkeley and its +contributors. + +Specifically, the provision reads: + +" * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors." + +Effective immediately, licensees and distributors are no longer required to +include the acknowledgement within advertising materials. Accordingly, the +foregoing paragraph of those BSD Unix files containing it is hereby deleted +in its entirety. + +William Hoskins +Director, Office of Technology Licensing +University of California, Berkeley diff --git a/lib/libc/freebsd/lib/csu/aarch64/crt.h b/lib/libc/freebsd/lib/csu/aarch64/crt.h new file mode 100644 index 0000000000..d3dcf25e90 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/aarch64/crt.h @@ -0,0 +1 @@ +/* Empty so we can include this unconditionally */ diff --git a/lib/libc/freebsd/lib/csu/aarch64/crt1_c.c b/lib/libc/freebsd/lib/csu/aarch64/crt1_c.c new file mode 100644 index 0000000000..22158aaa42 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/aarch64/crt1_c.c @@ -0,0 +1,33 @@ +/* LINTLIBRARY */ +/*- + * Copyright 1996-1998 John D. Polstra. + * Copyright 2014 Andrew Turner. + * Copyright 2014-2015 The FreeBSD Foundation. + * All rights reserved. + * + * Portions of this software were developed by Andrew Turner + * under sponsorship from the FreeBSD Foundation. + * + * 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 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 +#include "csu_common.h" diff --git a/lib/libc/freebsd/lib/csu/aarch64/crt1_s.S b/lib/libc/freebsd/lib/csu/aarch64/crt1_s.S new file mode 100644 index 0000000000..1fb60f756a --- /dev/null +++ b/lib/libc/freebsd/lib/csu/aarch64/crt1_s.S @@ -0,0 +1,68 @@ +/* LINTLIBRARY */ +/*- + * Copyright 1996-1998 John D. Polstra. + * Copyright 2014 Andrew Turner. + * Copyright 2014-2015 The FreeBSD Foundation. + * All rights reserved. + * + * Portions of this software were developed by Andrew Turner + * under sponsorship from the FreeBSD Foundation. + * + * 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 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 +#include + + /* + * The program entry point + * void _start(char **ap, void (*cleanup)(void)) __dead2 + */ +ENTRY(_start) + .cfi_undefined x30 + mov x3, x2 /* cleanup */ + add x1, x0, #8 /* load argv */ + ldr x0, [x0] /* load argc */ + add x2, x1, x0, lsl #3 /* env is after argv */ + add x2, x2, #8 /* argv is null terminated */ +#ifdef PIC + adrp x4, :got:main + ldr x4, [x4, :got_lo12:main] +#else + ldr x4, =main +#endif +#ifdef GCRT + ldr x5, =eprol + ldr x6, =etext + /* + * __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext) + */ + bl __libc_start1_gcrt +eprol: +#else + /* __libc_start1(argc, argv, env, cleanup, main) */ + bl __libc_start1 +#endif +END(_start) + + .section .note.GNU-stack,"",@progbits + +GNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL) diff --git a/lib/libc/freebsd/lib/csu/amd64/crt.h b/lib/libc/freebsd/lib/csu/amd64/crt.h new file mode 100644 index 0000000000..cc856c9b4e --- /dev/null +++ b/lib/libc/freebsd/lib/csu/amd64/crt.h @@ -0,0 +1,30 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2018 Andrew Turner + * + * 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. + * + * 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. + */ + +#ifndef _CRT_H_ +#define _CRT_H_ + +/* zig patch: no HAVE_CTORS */ +#define INIT_CALL_SEQ(func) "call " __STRING(func) + +#endif diff --git a/lib/libc/freebsd/lib/csu/amd64/crt1_c.c b/lib/libc/freebsd/lib/csu/amd64/crt1_c.c new file mode 100644 index 0000000000..85fe030960 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/amd64/crt1_c.c @@ -0,0 +1,30 @@ +/* LINTLIBRARY */ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 1996-1998 John D. Polstra. + * 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 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 +#include "csu_common.h" diff --git a/lib/libc/freebsd/lib/csu/amd64/crt1_s.S b/lib/libc/freebsd/lib/csu/amd64/crt1_s.S new file mode 100644 index 0000000000..f7ea076d94 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/amd64/crt1_s.S @@ -0,0 +1,89 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (C) 2023 Dmitry Chagin + * + * 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 AUTHOR 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 AUTHOR 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 + + + .text + .align 8 + + /* + * The program entry point + * %rdi %rsi + * void _start(char **ap, void (*cleanup)(void)) __dead2 + */ + .globl _start + .type _start, @function +_start: + .cfi_startproc + .cfi_undefined %rip /* Terminate call chain. */ + pushq %rbp /* Align stack, terminate call chain. */ + .cfi_def_cfa_offset 8 + movq %rsp, %rbp + .cfi_offset %rbp, -16 + .cfi_def_cfa_register %rbp +#ifdef GCRT + subq $16, %rsp +#endif + movq %rsi, %rcx + movq %rdi, %rsi /* argv = ap */ + addq $8, %rsi /* argv += 1 */ + movq %rdi, %rdx /* env = ap */ + addq $16, %rdx /* env += 2 */ + movslq (%rdi), %rax + movl %eax, %edi /* argc = *(long *)(void *)ap */ + shlq $3, %rax + addq %rax, %rdx /* env += argc */ +#ifdef PIC + /* + * XXX. %rip relative addressing is not intended for use in the + * large memory model due to the offset from %rip being limited + * to 32 bits. + */ + leaq main@plt(%rip), %r8 +#else + movabsq $main, %r8 +#endif +#ifdef GCRT + movabsq $eprol, %r9 + movabsq $etext, %rax + movq %rax, (%rsp) + /* + * %edi %rsi %rdx %rcx %r8 %r9 (%rsp) + * __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext) + */ + callq __libc_start1_gcrt +eprol: +#else + /* __libc_start1(argc, argv, env, cleanup, main) */ + callq __libc_start1 +#endif + int3 + .cfi_endproc + .size _start, . - _start + + .section .note.GNU-stack,"",%progbits diff --git a/lib/libc/freebsd/lib/csu/arm/crt.h b/lib/libc/freebsd/lib/csu/arm/crt.h new file mode 100644 index 0000000000..d3dcf25e90 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/arm/crt.h @@ -0,0 +1 @@ +/* Empty so we can include this unconditionally */ diff --git a/lib/libc/freebsd/lib/csu/arm/crt1_c.c b/lib/libc/freebsd/lib/csu/arm/crt1_c.c new file mode 100644 index 0000000000..7de2d333a5 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/arm/crt1_c.c @@ -0,0 +1,80 @@ +/* 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 +#include +#include + +#include "libc_private.h" +#include "csu_common.h" + +struct Struct_Obj_Entry; +struct ps_strings; + +void _start(int, char **, char **, const struct Struct_Obj_Entry *, + void (*)(void), struct ps_strings *) __dead2; + +struct ps_strings *__ps_strings; + +void __start(int, char **, char **, struct ps_strings *, + const struct Struct_Obj_Entry *, void (*)(void)) __dead2; + +void +__start(int argc, char **argv, char **env, struct ps_strings *ps_strings, + const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void)) +{ + if (ps_strings != (struct ps_strings *)0) + __ps_strings = ps_strings; + +#ifdef GCRT + __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext); +#else + __libc_start1(argc, argv, env, cleanup, main); +#endif +} + +#ifdef GCRT +__asm__(".text"); +__asm__("eprol:"); +__asm__(".previous"); +#endif diff --git a/lib/libc/freebsd/lib/csu/arm/crt1_s.S b/lib/libc/freebsd/lib/csu/arm/crt1_s.S new file mode 100644 index 0000000000..1f864f217f --- /dev/null +++ b/lib/libc/freebsd/lib/csu/arm/crt1_s.S @@ -0,0 +1,77 @@ +/* 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 +#include +#include +#include "notes.h" + +ENTRY(_start) + mov r5, r2 /* cleanup */ + mov r4, r1 /* obj_main */ + mov r3, r0 /* ps_strings */ + /* Get argc, argv, and envp from stack */ + ldr r0, [sp, #0x0000] + add r1, sp, #0x0004 + add r2, r1, r0, lsl #2 + add r2, r2, #0x0004 + /* Ensure the stack is properly aligned before calling C code. */ + bic sp, sp, #7 + sub sp, sp, #8 + str r5, [sp, #4] + str r4, [sp, #0] + + b __start +END(_start) + + .section .note.tag,"a",%note + .p2align 2 + .4byte 2f-1f + .4byte 4f-3f + .4byte NT_FREEBSD_ARCH_TAG +1: .asciz NOTE_FREEBSD_VENDOR +2: .p2align 2 +3: .asciz MACHINE_ARCH +4: + + .section .note.GNU-stack,"",%progbits diff --git a/lib/libc/freebsd/lib/csu/common/crtbegin.c b/lib/libc/freebsd/lib/csu/common/crtbegin.c new file mode 100644 index 0000000000..20e6ea085d --- /dev/null +++ b/lib/libc/freebsd/lib/csu/common/crtbegin.c @@ -0,0 +1,95 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2018 Andrew Turner + * + * 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. + * + * 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 +#include + +#include "crt.h" + +typedef void (*crt_func)(void); + +extern void *__dso_handle __hidden; + +#ifndef SHARED +void *__dso_handle = 0; +#else +void *__dso_handle = &__dso_handle; +void __cxa_finalize(void *) __weak_symbol; + +/* + * Call __cxa_finalize with the dso handle in shared objects. + * When we have ctors/dtors call from the dtor handler before calling + * any dtors, otherwise use a destructor. + */ +#ifndef HAVE_CTORS +__attribute__((destructor)) +#endif +static void +run_cxa_finalize(void) +{ + + if (__cxa_finalize != NULL) + __cxa_finalize(__dso_handle); +} +#endif + +/* + * On some architectures and toolchains we may need to call the .dtors. + * These are called in the order they are in the ELF file. + */ +#ifdef HAVE_CTORS +static void __do_global_dtors_aux(void) __used; + +static crt_func __CTOR_LIST__[] __section(".ctors") __used = { + (crt_func)-1 +}; +static crt_func __DTOR_LIST__[] __section(".dtors") __used = { + (crt_func)-1 +}; + +static void +__do_global_dtors_aux(void) +{ + crt_func fn; + int n; + +#ifdef SHARED + run_cxa_finalize(); +#endif + + for (n = 1;; n++) { + fn = __DTOR_LIST__[n]; + if (fn == (crt_func)0 || fn == (crt_func)-1) + break; + fn(); + } +} + +asm ( + ".pushsection .fini \n" + "\t" INIT_CALL_SEQ(__do_global_dtors_aux) "\n" + ".popsection \n" +); +#endif + +/* zig patch: remove gcj nonsense */ diff --git a/lib/libc/freebsd/lib/csu/common/crtbrand.S b/lib/libc/freebsd/lib/csu/common/crtbrand.S new file mode 100644 index 0000000000..bff07ac18d --- /dev/null +++ b/lib/libc/freebsd/lib/csu/common/crtbrand.S @@ -0,0 +1,55 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 2000 David E. O'Brien, John D. Polstra. + * 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 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 +#include +#include +#include "notes.h" + +/* + * Special ".note.tag" entry specifying the ABI version. See + * http://www.netbsd.org/Documentation/kernel/elf-notes.html + * for more information. + */ + + .section .note.tag,"aG",%note,.freebsd.noteG,comdat + .p2align 2 + .4byte 2f-1f + .4byte 4f-3f + .4byte NT_FREEBSD_ABI_TAG +1: .asciz NOTE_FREEBSD_VENDOR +2: .p2align 2 +/* zig patch: use __FreeBSD_version which is defined by the compiler */ +3: .4byte __FreeBSD_version +4: + + .section .note.GNU-stack,"",%progbits + +#ifdef __aarch64__ +/* This is needed in all objects for BTI to be used in the linked elf file */ +GNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL) +#endif diff --git a/lib/libc/freebsd/lib/csu/common/crtend.c b/lib/libc/freebsd/lib/csu/common/crtend.c new file mode 100644 index 0000000000..68a935b516 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/common/crtend.c @@ -0,0 +1,65 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2018 Andrew Turner + * + * 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. + * + * 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 +#include "crt.h" + +typedef void (*crt_func)(void); + +/* zig patch: remove gcj nonsense */ + +#ifdef HAVE_CTORS + +/* + * On some architectures and toolchains we may need to call the .ctors. + * These are called in the reverse order they are in the ELF file. + */ +static void __do_global_ctors_aux(void) __used; + +static crt_func __CTOR_END__[] __section(".ctors") __used = { + (crt_func)0 +}; +static crt_func __DTOR_END__[] __section(".dtors") __used = { + (crt_func)0 +}; + +static void +__do_global_ctors_aux(void) +{ + crt_func fn; + int n; + + for (n = 1;; n++) { + fn = __CTOR_END__[-n]; + if (fn == (crt_func)0 || fn == (crt_func)-1) + break; + fn(); + } +} + +asm ( + ".pushsection .init \n" + "\t" INIT_CALL_SEQ(__do_global_ctors_aux) "\n" + ".popsection \n" +); +#endif diff --git a/lib/libc/freebsd/lib/csu/common/csu_common.h b/lib/libc/freebsd/lib/csu/common/csu_common.h new file mode 100644 index 0000000000..c7d4a640e2 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/common/csu_common.h @@ -0,0 +1,50 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 1996-1998 John D. Polstra. + * 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 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. + */ + +#ifdef _CSU_COMMON_H_ + +/* + * This file includes both definitions and declarations, it can be + * included only into one compilation unit for csu objects. We cannot + * practically check this, but at least guard against + * double-inclusion. + */ +#error "Include this file only once" +#else +#define _CSU_COMMON_H_ + +char **environ; +const char *__progname = ""; + +#ifdef GCRT +extern int eprol; +extern int etext; +#endif + +int main(int, char **, char **); + +#endif /* _CSU_COMMON_H_ */ diff --git a/lib/libc/freebsd/lib/csu/common/feature_note.S b/lib/libc/freebsd/lib/csu/common/feature_note.S new file mode 100644 index 0000000000..5c1d56d4cd --- /dev/null +++ b/lib/libc/freebsd/lib/csu/common/feature_note.S @@ -0,0 +1,47 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 2000 David E. O'Brien, John D. Polstra. + * 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 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 +#include +#include "notes.h" + + .section .note.tag,"a",%note + .p2align 2 + .4byte 2f-1f + .4byte 4f-3f + .4byte NT_FREEBSD_FEATURE_CTL +1: .asciz NOTE_FREEBSD_VENDOR +2: .p2align 2 +3: .4byte 0 +4: + + .section .note.GNU-stack,"",%progbits + +#ifdef __aarch64__ +/* This is needed in all objects for BTI to be used in the linked elf file */ +GNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL) +#endif diff --git a/lib/libc/freebsd/lib/csu/common/ignore_init_note.S b/lib/libc/freebsd/lib/csu/common/ignore_init_note.S new file mode 100644 index 0000000000..57fb4e8f4d --- /dev/null +++ b/lib/libc/freebsd/lib/csu/common/ignore_init_note.S @@ -0,0 +1,48 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2012 Konstantin Belousov + * Copyright (c) 2018 The FreeBSD Foundation + * + * Parts of this software was developed by Konstantin Belousov + * under sponsorship from the FreeBSD Foundation. + * + * 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. + * + * 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 +#include + +#include "notes.h" + + .section .note.tag,"a",%note + .p2align 2 + .4byte 2f-1f + .4byte 4f-3f + .4byte NT_FREEBSD_NOINIT_TAG +1: .asciz NOTE_FREEBSD_VENDOR +2: .p2align 2 +3: .4byte 0 +4: + + .section .note.GNU-stack,"",%progbits + +#ifdef __aarch64__ +/* This is needed in all objects for BTI to be used in the linked elf file */ +GNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL) +#endif diff --git a/lib/libc/freebsd/lib/csu/common/notes.h b/lib/libc/freebsd/lib/csu/common/notes.h new file mode 100644 index 0000000000..fc4e4d082c --- /dev/null +++ b/lib/libc/freebsd/lib/csu/common/notes.h @@ -0,0 +1,32 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2012 Konstantin Belousov + * 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. + * + * 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. + */ + +#ifndef CSU_COMMON_NOTES_H +#define CSU_COMMON_NOTES_H + +#define NOTE_FREEBSD_VENDOR "FreeBSD" + +#define NOTE_SECTION ".note.tag" + +#endif diff --git a/lib/libc/freebsd/lib/csu/i386/crt.h b/lib/libc/freebsd/lib/csu/i386/crt.h new file mode 100644 index 0000000000..cc856c9b4e --- /dev/null +++ b/lib/libc/freebsd/lib/csu/i386/crt.h @@ -0,0 +1,30 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2018 Andrew Turner + * + * 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. + * + * 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. + */ + +#ifndef _CRT_H_ +#define _CRT_H_ + +/* zig patch: no HAVE_CTORS */ +#define INIT_CALL_SEQ(func) "call " __STRING(func) + +#endif diff --git a/lib/libc/freebsd/lib/csu/i386/crt1_c.c b/lib/libc/freebsd/lib/csu/i386/crt1_c.c new file mode 100644 index 0000000000..5755a66afb --- /dev/null +++ b/lib/libc/freebsd/lib/csu/i386/crt1_c.c @@ -0,0 +1,30 @@ +/* LINTLIBRARY */ +/*- + * Copyright 1996-1998 John D. Polstra. + * 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 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 +#include "csu_common.h" + +void _start(char *, ...) __dead2; diff --git a/lib/libc/freebsd/lib/csu/i386/crt1_s.S b/lib/libc/freebsd/lib/csu/i386/crt1_s.S new file mode 100644 index 0000000000..c29e97320a --- /dev/null +++ b/lib/libc/freebsd/lib/csu/i386/crt1_s.S @@ -0,0 +1,91 @@ +/*- + * Copyright 2009 Konstantin Belousov. + * 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. + * + * 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 + .text + .align 4 + .globl _start + .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 0 + movl %esp,%ebp + .cfi_offset %ebp,-4 + .cfi_def_cfa_register %ebp + andl $0xfffffff0,%esp # align stack + +#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 + /* 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 + + .section .note.GNU-stack,"",%progbits diff --git a/lib/libc/freebsd/lib/csu/powerpc/crt.h b/lib/libc/freebsd/lib/csu/powerpc/crt.h new file mode 100644 index 0000000000..f8b37f6584 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/powerpc/crt.h @@ -0,0 +1,31 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2018 Andrew Turner + * + * 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. + * + * 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. + */ + +#ifndef _CRT_H_ +#define _CRT_H_ + +/* zig patch: no HAVE_CTORS */ +#define CTORS_CONSTRUCTORS +#define INIT_CALL_SEQ(func) "bl " __STRING(func) "; nop" + +#endif diff --git a/lib/libc/freebsd/lib/csu/powerpc/crt1_c.c b/lib/libc/freebsd/lib/csu/powerpc/crt1_c.c new file mode 100644 index 0000000000..656ca9cde9 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/powerpc/crt1_c.c @@ -0,0 +1,89 @@ +/* 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 +#include + +#include "libc_private.h" +#include "csu_common.h" + +struct Struct_Obj_Entry; +struct ps_strings; + +struct ps_strings *__ps_strings; + +void _start(int, char **, char **, const struct Struct_Obj_Entry *, + void (*)(void), struct ps_strings *) __dead2; + +/* 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) +{ + if (ps_strings != (struct ps_strings *)0) + __ps_strings = ps_strings; + +#ifdef GCRT + __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext); +#else + __libc_start1(argc, argv, env, cleanup, main); +#endif +} + +#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 diff --git a/lib/libc/freebsd/lib/csu/powerpc/crtsavres.S b/lib/libc/freebsd/lib/csu/powerpc/crtsavres.S new file mode 100644 index 0000000000..95ac717121 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/powerpc/crtsavres.S @@ -0,0 +1,189 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2019 Justin Hibbits + * + * 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. + * + * 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 +.text + +/* + * The PowerPC ABI spec requires the following save/restore functions to be + * provided: + * + * _savefpr_N + * _restfpr_N + * _restfpr_N_x + * _savegpr_N + * _restgpr_N + * _restgpr_N_x + * + * With N ranging from 14 to 31, to save the nonvolatile registers. + */ + +#define _CRTENTRY(name) \ + .text; \ + .globl name; \ + .type name,@function; \ + name: + +#define SAVEFPR(r) _CRTENTRY(__CONCAT(_savefpr_,r)) \ + stfd r,(-256 + r * 8)(11) + +SAVEFPR(14) +SAVEFPR(15) +SAVEFPR(16) +SAVEFPR(17) +SAVEFPR(18) +SAVEFPR(19) +SAVEFPR(20) +SAVEFPR(21) +SAVEFPR(22) +SAVEFPR(23) +SAVEFPR(24) +SAVEFPR(25) +SAVEFPR(26) +SAVEFPR(27) +SAVEFPR(28) +SAVEFPR(29) +SAVEFPR(30) +SAVEFPR(31) + blr + +#define RESTFPR(r) _CRTENTRY(__CONCAT(_restfpr_,r)) \ + lfd r,(-256 + r * 8)(11) + +RESTFPR(14) +RESTFPR(15) +RESTFPR(16) +RESTFPR(17) +RESTFPR(18) +RESTFPR(19) +RESTFPR(20) +RESTFPR(21) +RESTFPR(22) +RESTFPR(23) +RESTFPR(24) +RESTFPR(25) +RESTFPR(26) +RESTFPR(27) +RESTFPR(28) +RESTFPR(29) +RESTFPR(30) +RESTFPR(31) + blr + +#define SAVEGPR(r) _CRTENTRY(__CONCAT(_savegpr_,r)) \ + stw r,(-128 + r * 4)(11) + +SAVEGPR(14) +SAVEGPR(15) +SAVEGPR(16) +SAVEGPR(17) +SAVEGPR(18) +SAVEGPR(19) +SAVEGPR(20) +SAVEGPR(21) +SAVEGPR(22) +SAVEGPR(23) +SAVEGPR(24) +SAVEGPR(25) +SAVEGPR(26) +SAVEGPR(27) +SAVEGPR(28) +SAVEGPR(29) +SAVEGPR(30) +SAVEGPR(31) + blr + +#define RESTGPR(r) _CRTENTRY(__CONCAT(_restgpr_,r)) \ + lwz r,(-128 + r*4)(11) + +RESTGPR(14) +RESTGPR(15) +RESTGPR(16) +RESTGPR(17) +RESTGPR(18) +RESTGPR(19) +RESTGPR(20) +RESTGPR(21) +RESTGPR(22) +RESTGPR(23) +RESTGPR(24) +RESTGPR(25) +RESTGPR(26) +RESTGPR(27) +RESTGPR(28) +RESTGPR(29) +RESTGPR(30) +RESTGPR(31) + blr + +#define RESTFPR_X(r) _CRTENTRY(__CONCAT(__CONCAT(_restfpr_,r),_x)) \ + lfd r,(-256 + r * 8)(11) + +RESTFPR_X(14) +RESTFPR_X(15) +RESTFPR_X(16) +RESTFPR_X(17) +RESTFPR_X(18) +RESTFPR_X(19) +RESTFPR_X(20) +RESTFPR_X(21) +RESTFPR_X(22) +RESTFPR_X(23) +RESTFPR_X(24) +RESTFPR_X(25) +RESTFPR_X(26) +RESTFPR_X(27) +RESTFPR_X(28) +RESTFPR_X(29) +RESTFPR_X(30) +RESTFPR_X(31) + lwz 0,4(11) + mtlr 0 + mr 1,11 + blr + +#define RESTGPR_X(r) _CRTENTRY(__CONCAT(__CONCAT(_restgpr_,r),_x)) \ + lwz r,(-128 + r * 4)(11) + +RESTGPR_X(14) +RESTGPR_X(15) +RESTGPR_X(16) +RESTGPR_X(17) +RESTGPR_X(18) +RESTGPR_X(19) +RESTGPR_X(20) +RESTGPR_X(21) +RESTGPR_X(22) +RESTGPR_X(23) +RESTGPR_X(24) +RESTGPR_X(25) +RESTGPR_X(26) +RESTGPR_X(27) +RESTGPR_X(28) +RESTGPR_X(29) +RESTGPR_X(30) +RESTGPR_X(31) + lwz 0,4(11) + mtlr 0 + mr 1,11 + blr diff --git a/lib/libc/freebsd/lib/csu/powerpc64/crt.h b/lib/libc/freebsd/lib/csu/powerpc64/crt.h new file mode 100644 index 0000000000..f8b37f6584 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/powerpc64/crt.h @@ -0,0 +1,31 @@ +/*- + * SPDX-License-Identifier: BSD-1-Clause + * + * Copyright 2018 Andrew Turner + * + * 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. + * + * 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. + */ + +#ifndef _CRT_H_ +#define _CRT_H_ + +/* zig patch: no HAVE_CTORS */ +#define CTORS_CONSTRUCTORS +#define INIT_CALL_SEQ(func) "bl " __STRING(func) "; nop" + +#endif diff --git a/lib/libc/freebsd/lib/csu/powerpc64/crt1_c.c b/lib/libc/freebsd/lib/csu/powerpc64/crt1_c.c new file mode 100644 index 0000000000..8d389b87a2 --- /dev/null +++ b/lib/libc/freebsd/lib/csu/powerpc64/crt1_c.c @@ -0,0 +1,83 @@ +/* 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 +#include +#include + +#include "libc_private.h" +#include "csu_common.h" + +struct Struct_Obj_Entry; +struct ps_strings; + +void _start(int, char **, char **, const struct Struct_Obj_Entry *, + void (*)(void), struct ps_strings *) __dead2; + +struct ps_strings *__ps_strings; + +/* The entry function. */ +/* + * First 5 arguments are specified by the PowerPC SVR4 ABI. + * The last argument, ps_strings, is a BSD extension. + */ +void +_start(int argc, char **argv, char **env, + const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void), + struct ps_strings *ps_strings) +{ + if (ps_strings != (struct ps_strings *)0) + __ps_strings = ps_strings; + +#ifdef GCRT + __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext); +#else + __libc_start1(argc, argv, env, cleanup, main); +#endif +} + +#ifdef GCRT +__asm__(".text"); +__asm__("eprol:"); +__asm__(".previous"); +#endif diff --git a/lib/libc/freebsd/lib/csu/riscv/crt.h b/lib/libc/freebsd/lib/csu/riscv/crt.h new file mode 100644 index 0000000000..27edda317a --- /dev/null +++ b/lib/libc/freebsd/lib/csu/riscv/crt.h @@ -0,0 +1,8 @@ + +#ifndef _CRT_H_ +#define _CRT_H_ + +/* zig patch: no HAVE_CTORS */ +#define INIT_CALL_SEQ(func) "call " __STRING(func) + +#endif diff --git a/lib/libc/freebsd/lib/csu/riscv/crt1_c.c b/lib/libc/freebsd/lib/csu/riscv/crt1_c.c new file mode 100644 index 0000000000..df97fb50bf --- /dev/null +++ b/lib/libc/freebsd/lib/csu/riscv/crt1_c.c @@ -0,0 +1,51 @@ +/* LINTLIBRARY */ +/*- + * Copyright 1996-1998 John D. Polstra. + * Copyright (c) 2015-2017 Ruslan Bukin + * All rights reserved. + * + * Portions of this software were developed by SRI International and the + * University of Cambridge Computer Laboratory under DARPA/AFRL contract + * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme. + * + * Portions of this software were developed by the University of Cambridge + * Computer Laboratory as part of the CTSRD Project, with support from the + * UK Higher Education Innovation Fund (HEIF). + * + * 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 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 +#include "libc_private.h" +#include "csu_common.h" + +void __start(int argc, char **argv, char **env, void (*cleanup)(void)) __dead2; + +void +__start(int argc, char **argv, char **env, void (*cleanup)(void)) +{ +#ifdef GCRT + __libc_start1_gcrt(argc, argv, env, cleanup, main, &eprol, &etext); +__asm__("eprol:"); +#else + __libc_start1(argc, argv, env, cleanup, main); +#endif +} diff --git a/lib/libc/freebsd/lib/csu/riscv/crt1_s.S b/lib/libc/freebsd/lib/csu/riscv/crt1_s.S new file mode 100644 index 0000000000..8f77d2358a --- /dev/null +++ b/lib/libc/freebsd/lib/csu/riscv/crt1_s.S @@ -0,0 +1,51 @@ +/* LINTLIBRARY */ +/*- + * Copyright 1996-1998 John D. Polstra. + * Copyright (c) 2015-2017 Ruslan Bukin + * All rights reserved. + * + * Portions of this software were developed by SRI International and the + * University of Cambridge Computer Laboratory under DARPA/AFRL contract + * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme. + * + * Portions of this software were developed by the University of Cambridge + * Computer Laboratory as part of the CTSRD Project, with support from the + * UK Higher Education Innovation Fund (HEIF). + * + * 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 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 +ENTRY(_start) + mv a3, a2 # cleanup + addi a1, a0, 8 # get argv + ld a0, 0(a0) # load argc + slli t0, a0, 3 # mult by arg size + add a2, a1, t0 # env is after argv + addi a2, a2, 8 # argv is null terminated + .option push + .option norelax + lla gp, __global_pointer$ + .option pop + call __start +END(_start) + + .section .note.GNU-stack,"",%progbits diff --git a/lib/libc/freebsd/lib/libc/include/libc_private.h b/lib/libc/freebsd/lib/libc/include/libc_private.h new file mode 100644 index 0000000000..e051961712 --- /dev/null +++ b/lib/libc/freebsd/lib/libc/include/libc_private.h @@ -0,0 +1,450 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1998 John Birrell . + * 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. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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 REGENTS 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. + * + * Private definitions for libc, libc_r and libpthread. + * + */ + +#ifndef _LIBC_PRIVATE_H_ +#define _LIBC_PRIVATE_H_ +#include +#include + +extern char **environ; + +/* + * The kernel doesn't expose PID_MAX to the user space. Save it here + * to allow to run a newer world on a pre-1400079 kernel. + */ +#define _PID_MAX 99999 + +/* + * This global flag is non-zero when a process has created one + * or more threads. It is used to avoid calling locking functions + * when they are not required. + */ +#ifndef __LIBC_ISTHREADED_DECLARED +#define __LIBC_ISTHREADED_DECLARED +extern int __isthreaded; +#endif + +/* + * Elf_Auxinfo *__elf_aux_vector, the pointer to the ELF aux vector + * provided by kernel. Either set for us by rtld, or found at runtime + * on stack for static binaries. + * + * Type is void to avoid polluting whole libc with ELF types. + */ +extern void *__elf_aux_vector; + +/* + * libc should use libc_dlopen internally, which respects a global + * flag where loading of new shared objects can be restricted. + */ +void *libc_dlopen(const char *, int); + +/* + * For dynamic linker. + */ +void _rtld_error(const char *fmt, ...); + +/* + * File lock contention is difficult to diagnose without knowing + * where locks were set. Allow a debug library to be built which + * records the source file and line number of each lock call. + */ +#ifdef _FLOCK_DEBUG +#define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__) +#else +#define _FLOCKFILE(x) _flockfile(x) +#endif + +/* + * Macros for locking and unlocking FILEs. These test if the + * process is threaded to avoid locking when not required. + */ +#define FLOCKFILE(fp) if (__isthreaded) _FLOCKFILE(fp) +#define FUNLOCKFILE(fp) if (__isthreaded) _funlockfile(fp) + +struct _spinlock; +extern struct _spinlock __stdio_thread_lock __hidden; +#define STDIO_THREAD_LOCK() \ +do { \ + if (__isthreaded) \ + _SPINLOCK(&__stdio_thread_lock); \ +} while (0) +#define STDIO_THREAD_UNLOCK() \ +do { \ + if (__isthreaded) \ + _SPINUNLOCK(&__stdio_thread_lock); \ +} while (0) + +void __libc_spinlock_stub(struct _spinlock *); +void __libc_spinunlock_stub(struct _spinlock *); + +/* + * Indexes into the pthread jump table. + * + * Warning! If you change this type, you must also change the threads + * libraries that reference it (libc_r, libpthread). + */ +typedef enum { + PJT_ATFORK, + PJT_ATTR_DESTROY, + PJT_ATTR_GETDETACHSTATE, + PJT_ATTR_GETGUARDSIZE, + PJT_ATTR_GETINHERITSCHED, + PJT_ATTR_GETSCHEDPARAM, + PJT_ATTR_GETSCHEDPOLICY, + PJT_ATTR_GETSCOPE, + PJT_ATTR_GETSTACKADDR, + PJT_ATTR_GETSTACKSIZE, + PJT_ATTR_INIT, + PJT_ATTR_SETDETACHSTATE, + PJT_ATTR_SETGUARDSIZE, + PJT_ATTR_SETINHERITSCHED, + PJT_ATTR_SETSCHEDPARAM, + PJT_ATTR_SETSCHEDPOLICY, + PJT_ATTR_SETSCOPE, + PJT_ATTR_SETSTACKADDR, + PJT_ATTR_SETSTACKSIZE, + PJT_CANCEL, + PJT_CLEANUP_POP, + PJT_CLEANUP_PUSH, + PJT_COND_BROADCAST, + PJT_COND_DESTROY, + PJT_COND_INIT, + PJT_COND_SIGNAL, + PJT_COND_TIMEDWAIT, + PJT_COND_WAIT, + PJT_DETACH, + PJT_EQUAL, + PJT_EXIT, + PJT_GETSPECIFIC, + PJT_JOIN, + PJT_KEY_CREATE, + PJT_KEY_DELETE, + PJT_KILL, + PJT_MAIN_NP, + PJT_MUTEXATTR_DESTROY, + PJT_MUTEXATTR_INIT, + PJT_MUTEXATTR_SETTYPE, + PJT_MUTEX_DESTROY, + PJT_MUTEX_INIT, + PJT_MUTEX_LOCK, + PJT_MUTEX_TRYLOCK, + PJT_MUTEX_UNLOCK, + PJT_ONCE, + PJT_RWLOCK_DESTROY, + PJT_RWLOCK_INIT, + PJT_RWLOCK_RDLOCK, + PJT_RWLOCK_TRYRDLOCK, + PJT_RWLOCK_TRYWRLOCK, + PJT_RWLOCK_UNLOCK, + PJT_RWLOCK_WRLOCK, + PJT_SELF, + PJT_SETCANCELSTATE, + PJT_SETCANCELTYPE, + PJT_SETSPECIFIC, + PJT_SIGMASK, + PJT_TESTCANCEL, + PJT_CLEANUP_POP_IMP, + PJT_CLEANUP_PUSH_IMP, + PJT_CANCEL_ENTER, + PJT_CANCEL_LEAVE, + PJT_MUTEX_CONSISTENT, + PJT_MUTEXATTR_GETROBUST, + PJT_MUTEXATTR_SETROBUST, + PJT_GETTHREADID_NP, + PJT_ATTR_GET_NP, + PJT_GETNAME_NP, + PJT_MAX +} pjt_index_t; + +typedef int (*pthread_func_t)(void); +typedef pthread_func_t pthread_func_entry_t[2]; + +extern pthread_func_entry_t __thr_jtable[]; + +void __set_error_selector(int *(*arg)(void)); +int _pthread_mutex_init_calloc_cb_stub(pthread_mutex_t *mutex, + void *(calloc_cb)(__size_t, __size_t)); + +typedef int (*interpos_func_t)(void); +interpos_func_t *__libc_interposing_slot(int interposno); +extern interpos_func_t __libc_interposing[] __hidden; + +enum { + INTERPOS_accept, + INTERPOS_accept4, + INTERPOS_aio_suspend, + INTERPOS_close, + INTERPOS_connect, + INTERPOS_fcntl, + INTERPOS_fsync, + INTERPOS_fork, + INTERPOS_msync, + INTERPOS_nanosleep, + INTERPOS_openat, + INTERPOS_poll, + INTERPOS_pselect, + INTERPOS_recvfrom, + INTERPOS_recvmsg, + INTERPOS_select, + INTERPOS_sendmsg, + INTERPOS_sendto, + INTERPOS_setcontext, + INTERPOS_sigaction, + INTERPOS_sigprocmask, + INTERPOS_sigsuspend, + INTERPOS_sigwait, + INTERPOS_sigtimedwait, + INTERPOS_sigwaitinfo, + INTERPOS_swapcontext, + INTERPOS_system, + INTERPOS_tcdrain, + INTERPOS_read, + INTERPOS_readv, + INTERPOS_wait4, + INTERPOS_write, + INTERPOS_writev, + INTERPOS__pthread_mutex_init_calloc_cb, + INTERPOS_spinlock, + INTERPOS_spinunlock, + INTERPOS_kevent, + INTERPOS_wait6, + INTERPOS_ppoll, + INTERPOS_map_stacks_exec, + INTERPOS_fdatasync, + INTERPOS_clock_nanosleep, + INTERPOS_distribute_static_tls, + INTERPOS_pdfork, + INTERPOS_MAX +}; + +/* + * yplib internal interfaces + */ +#ifdef YP +int _yp_check(char **); +#endif + +void __libc_start1(int, char *[], char *[], + void (*)(void), int (*)(int, char *[], char *[])) __dead2; +void __libc_start1_gcrt(int, char *[], char *[], + void (*)(void), int (*)(int, char *[], char *[]), + int *, int *) __dead2; + +/* + * Initialise TLS for static programs + */ +void _init_tls(void); + +/* + * Provides pthread_once()-like functionality for both single-threaded + * and multi-threaded applications. + */ +int _once(pthread_once_t *, void (*)(void)); + +/* + * This is a pointer in the C run-time startup code. It is used + * by getprogname() and setprogname(). + */ +extern const char *__progname; + +/* + * This function is used by the threading libraries to notify malloc that a + * thread is exiting. + */ +void _malloc_thread_cleanup(void); + +/* + * This function is used by the threading libraries to notify libc that a + * thread is exiting, so its thread-local dtors should be called. + */ +void __cxa_thread_call_dtors(void); +int __cxa_thread_atexit_hidden(void (*dtor_func)(void *), void *obj, + void *dso_symbol) __hidden; + +/* + * These functions are used by the threading libraries in order to protect + * malloc across fork(). + */ +void _malloc_prefork(void); +void _malloc_postfork(void); + +void _malloc_first_thread(void); + +/* + * Function to clean up streams, called from abort() and exit(). + */ +extern void (*__cleanup)(void) __hidden; + +/* + * Get kern.osreldate to detect ABI revisions. Explicitly + * ignores value of $OSVERSION and caches result. + */ +int __getosreldate(void); +#include +#include + +struct aiocb; +struct fd_set; +struct iovec; +struct kevent; +struct msghdr; +struct pollfd; +struct rusage; +struct sigaction; +struct sockaddr; +struct stat; +struct statfs; +struct timespec; +struct timeval; +struct timezone; +struct __siginfo; +struct __ucontext; +struct __wrusage; +enum idtype; +int __sys_aio_suspend(const struct aiocb * const[], int, + const struct timespec *); +int __sys_accept(int, struct sockaddr *, __socklen_t *); +int __sys_accept4(int, struct sockaddr *, __socklen_t *, int); +int __sys_clock_gettime(__clockid_t, struct timespec *ts); +int __sys_clock_nanosleep(__clockid_t, int, + const struct timespec *, struct timespec *); +int __sys_close(int); +int __sys_close_range(unsigned, unsigned, int); +int __sys_connect(int, const struct sockaddr *, __socklen_t); +int __sys_fcntl(int, int, ...); +int __sys_fdatasync(int); +int __sys_fstat(int fd, struct stat *); +int __sys_fstatfs(int fd, struct statfs *); +int __sys_fstatat(int, const char *, struct stat *, int); +int __sys_fsync(int); +__pid_t __sys_fork(void); +int __sys_ftruncate(int, __off_t); +__ssize_t __sys_getdirentries(int, char *, __size_t, __off_t *); +int __sys_getfsstat(struct statfs *, long, int); +int __sys_gettimeofday(struct timeval *, struct timezone *); +int __sys_kevent(int, const struct kevent *, int, struct kevent *, + int, const struct timespec *); +__off_t __sys_lseek(int, __off_t, int); +void *__sys_mmap(void *, __size_t, int, int, int, __off_t); +int __sys_msync(void *, __size_t, int); +int __sys_nanosleep(const struct timespec *, struct timespec *); +int __sys_open(const char *, int, ...); +int __sys_openat(int, const char *, int, ...); +int __sys_pdfork(int *, int); +int __sys_pselect(int, struct fd_set *, struct fd_set *, + struct fd_set *, const struct timespec *, + const __sigset_t *); +int __sys_ptrace(int, __pid_t, char *, int); +int __sys_poll(struct pollfd *, unsigned, int); +int __sys_ppoll(struct pollfd *, unsigned, const struct timespec *, + const __sigset_t *); +__ssize_t __sys_pread(int, void *, __size_t, __off_t); +__ssize_t __sys_pwrite(int, const void *, __size_t, __off_t); +__ssize_t __sys_read(int, void *, __size_t); +__ssize_t __sys_readv(int, const struct iovec *, int); +__ssize_t __sys_recv(int, void *, __size_t, int); +__ssize_t __sys_recvfrom(int, void *, __size_t, int, struct sockaddr *, + __socklen_t *); +__ssize_t __sys_recvmsg(int, struct msghdr *, int); +int __sys_sched_getcpu(void); +int __sys_select(int, struct fd_set *, struct fd_set *, + struct fd_set *, struct timeval *); +__ssize_t __sys_sendmsg(int, const struct msghdr *, int); +__ssize_t __sys_sendto(int, const void *, __size_t, int, + const struct sockaddr *, __socklen_t); +int __sys_setcontext(const struct __ucontext *); +int __sys_sigaction(int, const struct sigaction *, + struct sigaction *); +int __sys_sigprocmask(int, const __sigset_t *, __sigset_t *); +int __sys_sigsuspend(const __sigset_t *); +int __sys_sigtimedwait(const __sigset_t *, struct __siginfo *, + const struct timespec *); +int __sys_sigwait(const __sigset_t *, int *); +int __sys_sigwaitinfo(const __sigset_t *, struct __siginfo *); +int __sys___specialfd(int, const void *, __size_t); +int __sys_statfs(const char *, struct statfs *); +int __sys_swapcontext(struct __ucontext *, + const struct __ucontext *); +int __sys_thr_kill(long, int); +int __sys_thr_self(long *); +int __sys_truncate(const char *, __off_t); +__pid_t __sys_wait4(__pid_t, int *, int, struct rusage *); +__pid_t __sys_wait6(enum idtype, __id_t, int *, int, + struct __wrusage *, struct __siginfo *); +__ssize_t __sys_write(int, const void *, __size_t); +__ssize_t __sys_writev(int, const struct iovec *, int); +int __sys_shm_open2(const char *, int, __mode_t, int, const char *); + +int __libc_sigaction(int, const struct sigaction *, + struct sigaction *) __hidden; +int __libc_sigprocmask(int, const __sigset_t *, __sigset_t *) + __hidden; +int __libc_sigsuspend(const __sigset_t *) __hidden; +int __libc_sigwait(const __sigset_t * __restrict, + int * restrict sig); +int __libc_system(const char *); +int __libc_tcdrain(int); +int __fcntl_compat(int fd, int cmd, ...); + +int __sys_futimens(int fd, const struct timespec *times) __hidden; +int __sys_utimensat(int fd, const char *path, + const struct timespec *times, int flag) __hidden; + +int _elf_aux_info(int aux, void *buf, int buflen); +struct dl_phdr_info; +int __elf_phdr_match_addr(struct dl_phdr_info *, void *); +void __init_elf_aux_vector(void); +void __libc_map_stacks_exec(void); +void __libc_distribute_static_tls(__size_t, void *, __size_t, __size_t); +__uintptr_t __libc_static_tls_base(__size_t); + +void _pthread_cancel_enter(int); +void _pthread_cancel_leave(int); + +struct _pthread_cleanup_info; +void ___pthread_cleanup_push_imp(void (*)(void *), void *, + struct _pthread_cleanup_info *); +void ___pthread_cleanup_pop_imp(int); + +void __throw_constraint_handler_s(const char * restrict msg, int error); + +struct __nl_cat_d; +struct _xlocale; +struct __nl_cat_d *__catopen_l(const char *name, int type, + struct _xlocale *locale); +int __strerror_rl(int errnum, char *strerrbuf, __size_t buflen, + struct _xlocale *locale); + +#endif /* _LIBC_PRIVATE_H_ */