cosmopolitan/libc/runtime/runtime.h
Justine Tunney ff77f2a6af
Make improvements
- This change fixes a bug that allowed unbuffered printf() output (to
  streams like stderr) to be truncated. This regression was introduced
  some time between now and the last release.

- POSIX specifies all functions as thread safe by default. This change
  works towards cleaning up our use of the @threadsafe / @threadunsafe
  documentation annotations to reflect that. The goal is (1) to use
  @threadunsafe to document functions which POSIX say needn't be thread
  safe, and (2) use @threadsafe to document functions that we chose to
  implement as thread safe even though POSIX didn't mandate it.

- Tidy up the clock_gettime() implementation. We're now trying out a
  cleaner approach to system call support that aims to maintain the
  Linux errno convention as long as possible. This also fixes bugs that
  existed previously, where the vDSO errno wasn't being translated
  properly. The gettimeofday() system call is now a wrapper for
  clock_gettime(), which reduces bloat in apps that use both.

- The recently-introduced improvements to the execute bit on Windows has
  had bugs fixed. access(X_OK) on a directory on Windows now succeeds.
  fstat() will now perform the MZ/#! ReadFile() operation correctly.

- Windows.h is no longer included in libc/isystem/, because it confused
  PCRE's build system into thinking Cosmopolitan is a WIN32 platform.
  Cosmo's Windows.h polyfill was never even really that good, since it
  only defines a subset of the subset of WIN32 APIs that Cosmo defines.

- The setlongerjmp() / longerjmp() APIs are removed. While they're nice
  APIs that are superior to the standardized setjmp / longjmp functions,
  they weren't superior enough to not be dead code in the monorepo. If
  you use these APIs, please file an issue and they'll be restored.

- The .com appending magic has now been removed from APE Loader.
2023-10-03 06:17:16 -07:00

152 lines
5 KiB
C

#ifndef COSMOPOLITAN_LIBC_RUNTIME_RUNTIME_H_
#define COSMOPOLITAN_LIBC_RUNTIME_RUNTIME_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § runtime ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
#ifdef __x86_64__
typedef long jmp_buf[8];
typedef long sigjmp_buf[12];
#elif defined(__aarch64__)
typedef long jmp_buf[22];
typedef long sigjmp_buf[26];
#elif defined(__powerpc64__)
typedef unsigned __int128 jmp_buf[32];
#elif defined(__s390x__)
typedef unsigned long jmp_buf[18];
#elif defined(__riscv)
typedef unsigned long jmp_buf[26];
#endif
void mcount(void);
int daemon(int, int);
unsigned long getauxval(unsigned long);
int setjmp(jmp_buf)
libcesque returnstwice paramsnonnull();
void longjmp(jmp_buf, int) libcesque wontreturn paramsnonnull();
int _setjmp(jmp_buf)
libcesque returnstwice paramsnonnull();
int sigsetjmp(sigjmp_buf, int) libcesque returnstwice paramsnonnull();
void siglongjmp(sigjmp_buf, int) libcesque wontreturn paramsnonnull();
void _longjmp(jmp_buf, int) libcesque wontreturn paramsnonnull();
void exit(int) wontreturn;
void _exit(int) libcesque wontreturn;
void _Exit(int) libcesque wontreturn;
void quick_exit(int) wontreturn;
void abort(void) wontreturn;
int __cxa_atexit(void *, void *, void *) paramsnonnull((1)) libcesque;
int atexit(void (*)(void)) paramsnonnull() libcesque;
char *getenv(const char *) paramsnonnull() __wur nosideeffect libcesque;
int putenv(char *);
int setenv(const char *, const char *, int);
int unsetenv(const char *);
int clearenv(void);
void fpreset(void);
void *mmap(void *, uint64_t, int32_t, int32_t, int32_t, int64_t);
int munmap(void *, uint64_t);
int mprotect(void *, uint64_t, int);
int msync(void *, size_t, int);
int mlock(const void *, size_t);
int munlock(const void *, size_t);
long gethostid(void);
int sethostid(long);
char *getlogin(void);
int getlogin_r(char *, size_t);
int login_tty(int);
int getpagesize(void);
int syncfs(int);
int vhangup(void);
int getdtablesize(void);
int sethostname(const char *, size_t);
int acct(const char *);
#if defined(_GNU_SOURCE) || defined(_COSMO_SOURCE)
extern char **environ;
char *secure_getenv(const char *) paramsnonnull() __wur nosideeffect libcesque;
#endif
#ifdef _COSMO_SOURCE
extern int __argc;
extern char **__argv;
extern char **__envp;
extern unsigned long *__auxv;
extern bool __interruptible;
extern intptr_t __oldstack;
extern uint64_t __nosync;
extern int __strace;
extern int __ftrace;
extern uint64_t __syscount;
extern uint64_t kStartTsc;
extern const char kNtSystemDirectory[];
extern const char kNtWindowsDirectory[];
extern size_t __virtualmax;
extern size_t __stackmax;
extern bool __isworker;
/* utilities */
void _intsort(int *, size_t);
void _longsort(long *, size_t);
/* diagnostics */
void ShowCrashReports(void);
int ftrace_install(void);
int ftrace_enabled(int);
int strace_enabled(int);
bool strace_enter(void);
void __print_maps(void);
void __printargs(const char *);
/* builtin sh-like system/popen dsl */
int _cocmd(int, char **, char **);
/* executable program */
char *GetProgramExecutableName(void);
char *GetInterpreterExecutableName(char *, size_t);
int __open_executable(void);
/* execution control */
int verynice(void);
void __warn_if_powersave(void);
void _Exit1(int) libcesque wontreturn;
void __paginate(int, const char *);
/* memory management */
void _weakfree(void *);
void *_mapanon(size_t) attributeallocsize((1)) mallocesque;
void *_mapshared(size_t) attributeallocsize((1)) mallocesque;
void CheckForMemoryLeaks(void);
void CheckForFileLeaks(void);
void __enable_threads(void);
void __oom_hook(size_t);
bool _isheap(void *);
/* code morphing */
void __morph_begin(void);
void __morph_end(void);
/* portability */
int NtGetVersion(void) pureconst;
bool IsGenuineBlink(void);
bool IsCygwin(void);
const char *GetCpuidOs(void);
const char *GetCpuidEmulator(void);
void GetCpuidBrand(char[13], uint32_t);
long __get_rlimit(int);
const char *__describe_os(void);
long __get_sysctl(int, int);
int __get_arg_max(void) pureconst;
int __get_cpu_count(void) pureconst;
long __get_avphys_pages(void) pureconst;
long __get_phys_pages(void) pureconst;
long __get_minsigstksz(void) pureconst;
void __get_main_stack(void **, size_t *, int *);
long __get_safe_size(long, long);
char *__get_tmpdir(void);
__funline int __trace_disabled(int x) {
return 0;
}
#ifndef FTRACE
#define ftrace_enabled __trace_disabled
#endif
#ifndef SYSDEBUG
#define strace_enabled __trace_disabled
#endif
#endif /* _COSMO_SOURCE */
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_RUNTIME_RUNTIME_H_ */