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cf93ecbbb2
The whole repository is now buildable with GNU Make Landlock sandboxing.
This proves that no Makefile targets exist which touch files other than
their declared prerequisites. In order to do this, we had to:
1. Stop code morphing GCC output in package.com and instead run a
newly introduced FIXUPOBJ.COM command after GCC invocations.
2. Disable all the crumby Python unit tests that do things like create
files in the current directory, or rename() files between folders.
This ended up being a lot of tests, but most of them are still ok.
3. Introduce an .UNSANDBOXED variable to GNU Make to disable Landlock.
We currently only do this for things like `make tags`.
4. This change deletes some GNU Make code that was preventing the
execve() optimization from working. This means it should no longer
be necessary in most cases for command invocations to be indirected
through the cocmd interpreter.
5. Missing dependencies had to be declared in certain places, in cases
where they couldn't be automatically determined by MKDEPS.COM
6. The libcxx header situation has finally been tamed. One of the
things that makes this difficult is MKDEPS.COM only wants to
consider the first 64kb of a file, in order to go fast. But libcxx
likes to have #include lines buried after huge documentation.
7. An .UNVEIL variable has been introduced to GNU Make just in case
we ever wish to explicitly specify additional things that need to
be whitelisted which aren't strictly prerequisites. This works in
a manner similar to the recently introduced .EXTRA_PREREQS feature.
There's now a new build/bootstrap/make.com prebuilt binary available. It
should no longer be possible to write invalid Makefile code.
140 lines
4.9 KiB
C++
140 lines
4.9 KiB
C++
// -*- C++ -*-
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//===--------------------------- string.h ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_STRING_H
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#define _LIBCPP_STRING_H
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#include "third_party/libcxx/__config"
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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#include "libc/str/str.h"
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/*
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string.h synopsis
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Macros:
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NULL
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Types:
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size_t
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void* memcpy(void* restrict s1, const void* restrict s2, size_t n);
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void* memmove(void* s1, const void* s2, size_t n);
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char* strcpy (char* restrict s1, const char* restrict s2);
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char* strncpy(char* restrict s1, const char* restrict s2, size_t n);
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char* strcat (char* restrict s1, const char* restrict s2);
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char* strncat(char* restrict s1, const char* restrict s2, size_t n);
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int memcmp(const void* s1, const void* s2, size_t n);
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int strcmp (const char* s1, const char* s2);
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int strncmp(const char* s1, const char* s2, size_t n);
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int strcoll(const char* s1, const char* s2);
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size_t strxfrm(char* restrict s1, const char* restrict s2, size_t n);
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const void* memchr(const void* s, int c, size_t n);
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void* memchr( void* s, int c, size_t n);
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const char* strchr(const char* s, int c);
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char* strchr( char* s, int c);
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size_t strcspn(const char* s1, const char* s2);
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const char* strpbrk(const char* s1, const char* s2);
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char* strpbrk( char* s1, const char* s2);
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const char* strrchr(const char* s, int c);
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char* strrchr( char* s, int c);
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size_t strspn(const char* s1, const char* s2);
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const char* strstr(const char* s1, const char* s2);
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char* strstr( char* s1, const char* s2);
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char* strtok(char* restrict s1, const char* restrict s2);
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void* memset(void* s, int c, size_t n);
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char* strerror(int errnum);
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size_t strlen(const char* s);
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*/
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// MSVCRT, GNU libc and its derivates may already have the correct prototype in
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// <string.h>. This macro can be defined by users if their C library provides
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// the right signature.
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#if defined(__CORRECT_ISO_CPP_STRING_H_PROTO) || defined(_LIBCPP_MSVCRT) || \
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defined(__sun__) || defined(_STRING_H_CPLUSPLUS_98_CONFORMANCE_)
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#define _LIBCPP_STRING_H_HAS_CONST_OVERLOADS
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#endif
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#if defined(__cplusplus) && !defined(_LIBCPP_STRING_H_HAS_CONST_OVERLOADS) && \
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defined(_LIBCPP_PREFERRED_OVERLOAD)
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extern "C++" {
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inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strchr(const char* __s,
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int __c) {
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return (char*)strchr(__s, __c);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
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strchr(const char* __s, int __c) {
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return __libcpp_strchr(__s, __c);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
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strchr(char* __s, int __c) {
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return __libcpp_strchr(__s, __c);
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}
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inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strpbrk(const char* __s1,
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const char* __s2) {
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return (char*)strpbrk(__s1, __s2);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
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strpbrk(const char* __s1, const char* __s2) {
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return __libcpp_strpbrk(__s1, __s2);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
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strpbrk(char* __s1, const char* __s2) {
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return __libcpp_strpbrk(__s1, __s2);
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}
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inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strrchr(const char* __s,
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int __c) {
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return (char*)strrchr(__s, __c);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
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strrchr(const char* __s, int __c) {
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return __libcpp_strrchr(__s, __c);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
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strrchr(char* __s, int __c) {
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return __libcpp_strrchr(__s, __c);
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}
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inline _LIBCPP_INLINE_VISIBILITY void* __libcpp_memchr(const void* __s, int __c,
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size_t __n) {
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return (void*)memchr(__s, __c, __n);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const void*
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memchr(const void* __s, int __c, size_t __n) {
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return __libcpp_memchr(__s, __c, __n);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD void*
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memchr(void* __s, int __c, size_t __n) {
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return __libcpp_memchr(__s, __c, __n);
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}
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inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strstr(const char* __s1,
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const char* __s2) {
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return (char*)strstr(__s1, __s2);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
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strstr(const char* __s1, const char* __s2) {
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return __libcpp_strstr(__s1, __s2);
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}
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
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strstr(char* __s1, const char* __s2) {
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return __libcpp_strstr(__s1, __s2);
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}
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}
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#endif
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#endif // _LIBCPP_STRING_H
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