cosmopolitan/third_party/libcxx/cstdio
Justine Tunney cf93ecbbb2 Prove that Makefile is fully defined
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.
2022-08-06 04:05:08 -07:00

171 lines
4.3 KiB
C++

// -*- C++ -*-
//===---------------------------- cstdio ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CSTDIO
#define _LIBCPP_CSTDIO
#include "third_party/libcxx/__config"
#include "third_party/libcxx/stdio.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
/*
cstdio synopsis
Macros:
BUFSIZ
EOF
FILENAME_MAX
FOPEN_MAX
L_tmpnam
NULL
SEEK_CUR
SEEK_END
SEEK_SET
TMP_MAX
_IOFBF
_IOLBF
_IONBF
stderr
stdin
stdout
namespace std
{
Types:
FILE
fpos_t
size_t
int remove(const char* filename);
int rename(const char* old, const char* new);
FILE* tmpfile(void);
char* tmpnam(char* s);
int fclose(FILE* stream);
int fflush(FILE* stream);
FILE* fopen(const char* restrict filename, const char* restrict mode);
FILE* freopen(const char* restrict filename, const char * restrict mode,
FILE * restrict stream);
void setbuf(FILE* restrict stream, char* restrict buf);
int setvbuf(FILE* restrict stream, char* restrict buf, int mode, size_t size);
int fprintf(FILE* restrict stream, const char* restrict format, ...);
int fscanf(FILE* restrict stream, const char * restrict format, ...);
int printf(const char* restrict format, ...);
int scanf(const char* restrict format, ...);
int snprintf(char* restrict s, size_t n, const char* restrict format, ...); // C99
int sprintf(char* restrict s, const char* restrict format, ...);
int sscanf(const char* restrict s, const char* restrict format, ...);
int vfprintf(FILE* restrict stream, const char* restrict format, va_list arg);
int vfscanf(FILE* restrict stream, const char* restrict format, va_list arg); // C99
int vprintf(const char* restrict format, va_list arg);
int vscanf(const char* restrict format, va_list arg); // C99
int vsnprintf(char* restrict s, size_t n, const char* restrict format, // C99
va_list arg);
int vsprintf(char* restrict s, const char* restrict format, va_list arg);
int vsscanf(const char* restrict s, const char* restrict format, va_list arg); // C99
int fgetc(FILE* stream);
char* fgets(char* restrict s, int n, FILE* restrict stream);
int fputc(int c, FILE* stream);
int fputs(const char* restrict s, FILE* restrict stream);
int getc(FILE* stream);
int getchar(void);
char* gets(char* s); // removed in C++14
int putc(int c, FILE* stream);
int putchar(int c);
int puts(const char* s);
int ungetc(int c, FILE* stream);
size_t fread(void* restrict ptr, size_t size, size_t nmemb,
FILE* restrict stream);
size_t fwrite(const void* restrict ptr, size_t size, size_t nmemb,
FILE* restrict stream);
int fgetpos(FILE* restrict stream, fpos_t* restrict pos);
int fseek(FILE* stream, long offset, int whence);
int fsetpos(FILE*stream, const fpos_t* pos);
long ftell(FILE* stream);
void rewind(FILE* stream);
void clearerr(FILE* stream);
int feof(FILE* stream);
int ferror(FILE* stream);
void perror(const char* s);
} // std
*/
using ::FILE;
using ::fpos_t;
using ::size_t;
using ::fclose;
using ::fflush;
using ::setbuf;
using ::setvbuf;
using ::fprintf;
using ::fscanf;
using ::snprintf;
using ::sprintf;
using ::sscanf;
using ::vfprintf;
using ::vfscanf;
using ::vsscanf;
using ::vsnprintf;
using ::vsprintf;
using ::fgetc;
using ::fgets;
using ::fputc;
using ::fputs;
using ::getc;
using ::putc;
using ::ungetc;
using ::fread;
using ::fwrite;
using ::fgetpos;
using ::fseek;
using ::fsetpos;
using ::ftell;
using ::rewind;
using ::clearerr;
using ::feof;
using ::ferror;
using ::perror;
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
using ::fopen;
using ::freopen;
using ::remove;
using ::rename;
using ::tmpfile;
using ::tmpnam;
#endif
#ifndef _LIBCPP_HAS_NO_STDIN
using ::getchar;
#if _LIBCPP_STD_VER <= 11 && !defined(_LIBCPP_C_HAS_NO_GETS)
using ::gets;
#endif
using ::scanf;
using ::vscanf;
#endif
#ifndef _LIBCPP_HAS_NO_STDOUT
using ::printf;
using ::putchar;
using ::puts;
using ::vprintf;
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CSTDIO