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cosmopolitan/libc/calls/internal.h
Justine Tunney c91b3c5006 Initial import
2020-06-15 07:18:57 -07:00

320 lines
14 KiB
C
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=8 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#ifndef COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_
#include "libc/calls/calls.h"
#include "libc/dce.h"
#include "libc/limits.h"
#include "libc/macros.h"
#include "libc/nt/struct/securityattributes.h"
#include "libc/nt/struct/startupinfo.h"
#include "libc/runtime/runtime.h"
#define kSigactionMinRva 8 /* >SIG_{ERR,DFL,IGN,...} */
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define kIoMotion ((const int8_t[3]){1, 0, 0})
struct NtContext;
struct NtWin32FileAttributeData;
struct __darwin_siginfo;
struct __darwin_ucontext;
struct itimerval;
struct rlimit;
struct rusage;
struct sigset;
struct sysinfo;
struct timeval;
struct timezone;
struct ZiposHandle;
struct IoctlPtmGet {
int theduxfd;
int workerfd;
char theduxname[16];
char workername[16];
};
/**
* List of open handles on Windows NT.
*
* The array is indexed by the sysv-style file descriptor numbers that
* we assign. It's needed to make file descriptors only require 32bits
* and helps us abstract peculiarities like close() vs. closesocket().
*/
struct Fds {
size_t f, n;
struct Fd {
int64_t handle;
int64_t extra;
enum FdKind {
kFdEmpty,
kFdFile,
kFdSocket,
kFdProcess,
kFdConsole,
kFdZip,
} kind;
unsigned flags;
} * p;
struct Fd __init_p[OPEN_MAX];
};
extern const struct Fd kEmptyFd;
hidden extern int g_sighandrvas[NSIG];
hidden extern struct Fds g_fds;
hidden extern struct NtSystemInfo g_ntsysteminfo;
hidden extern struct NtStartupInfo g_ntstartupinfo;
hidden extern const struct NtSecurityAttributes kNtIsInheritable;
forceinline bool isfdlegal(int fd) {
if (!IsTrustworthy()) {
return (0 <= fd && fd <= INT_MAX);
} else {
return fd;
}
}
forceinline bool isfdindex(int fd) {
if (!IsTrustworthy()) {
return (0 <= fd && fd < g_fds.n);
} else {
return fd;
}
}
ssize_t createfd(void) hidden;
int growfds(void) hidden;
void removefd(int) hidden;
enum FdKind fdkind(int) hidden nosideeffect;
bool isfdkind(int, enum FdKind) hidden nosideeffect;
forceinline size_t clampio(size_t size) {
if (!IsTrustworthy()) {
return MIN(size, 0x7ffff000);
} else {
return size;
}
}
#define i32 int32_t
#define i64 int64_t
#define u32 uint32_t
#define u64 uint64_t
#define sigset struct sigset
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § syscalls » system five » synthetic jump slots ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
char *getcwd$sysv(char *, u64) hidden;
i32 __dup3$sysv(i32, i32, i32) hidden;
i32 __fstat$sysv(i32, struct stat *) hidden;
i32 __fstatat$sysv(i32, const char *, struct stat *, i32) hidden;
i32 __pipe2$sysv(i32[hasatleast 2], u32) hidden;
i32 chdir$sysv(const char *) hidden;
i32 clock_gettime$sysv(i32, struct timespec *) hidden;
i32 close$sysv(i32) hidden;
i32 dup$sysv(i32) hidden;
i32 dup2$sysv(i32, i32) hidden;
i32 dup3$sysv(i32, i32, i32) hidden;
i32 execve$sysv(const char *, char *const[], char *const[]) hidden;
i32 faccessat$sysv(i32, const char *, i32, u32) hidden;
i32 fadvise$sysv(i32, i64, i64, i32) hidden;
i32 fallocate$sysv(i64, i32, i64, i64) hidden;
i32 fchmod$sysv(i32, u32) hidden;
i32 fchmodat$sysv(i32, const char *, u32, u32) hidden;
i32 fchown$sysv(i64, u32, u32) hidden;
i32 fchownat$sysv(i32, const char *, u32, u32, u32) hidden;
i32 fcntl$sysv(i32, i32, i32) hidden;
i32 fdatasync$sysv(i32) hidden;
i32 flock$sysv(i32, i32) hidden;
i32 fork$sysv(void) hidden;
i32 fstat$sysv(i32, struct stat *) hidden;
i32 fstatat$sysv(i32, const char *, struct stat *, i32) hidden;
i32 fsync$sysv(i32) hidden;
i32 ftruncate$sysv(i32, i64) hidden;
i32 getdents(i32, char *, u32) hidden;
i32 getppid$sysv(void) hidden;
i32 getpriority$sysv(i32, u32) hidden;
i32 getrlimit$sysv(i32, struct rlimit *) hidden;
i32 getrusage$sysv(i32, struct rusage *) hidden;
i32 gettimeofday$sysv(struct timeval *, struct timezone *) hidden;
i32 ioctl$sysv(i32, u64, void *) hidden;
i32 kill$sysv(i32, i32, i32) hidden;
i32 linkat$sysv(i32, const char *, i32, const char *, i32) hidden;
i32 lseek$sysv(i32, i64, i32) hidden;
i32 madvise$sysv(void *, size_t, i32) hidden;
i32 memfd_create$sysv(const char *, u32) hidden;
i32 mkdirat$sysv(i32, const char *, u32) hidden;
i32 mkfifo$sysv(const char *, u32) hidden;
i32 mknod$sysv(const char *, u32, u64) hidden;
i32 mprotect$sysv(void *, u64, i32) hidden;
i32 msync$sysv(void *, u64, i32) hidden;
i32 munmap$sysv(void *, u64) hidden;
i32 nanosleep$sysv(const struct timespec *, struct timespec *) hidden;
i32 openat$sysv(i32, const char *, i32, i32) hidden;
i32 pause$sysv(void) hidden;
i32 pipe$sysv(i32[hasatleast 2]) hidden;
i32 pipe2$sysv(i32[hasatleast 2], u32) hidden;
i32 posix_fallocate$sysv(i64, i64, i64) hidden;
i32 posix_openpt$sysv(i32) hidden;
i32 renameat$sysv(i32, const char *, i32, const char *) hidden;
i32 sched_setaffinity$sysv(i32, u64, const void *) hidden;
i32 sched_yield$sysv(void) hidden;
i32 setitimer$sysv(i32, const struct itimerval *, struct itimerval *) hidden;
i32 setpriority$sysv(i32, u32, i32) hidden;
i32 setrlimit$sysv(i32, const struct rlimit *) hidden;
i32 sigaction$sysv(i32, const void *, void *, i64) hidden;
i32 sigprocmask$sysv(i32, const sigset *, sigset *, u64) hidden;
i32 sigsuspend$sysv(const sigset *, u64) hidden;
i32 symlinkat$sysv(const char *, i32, const char *) hidden;
i32 sync_file_range$sysv(i32, i64, i64, u32) hidden;
i32 sysinfo$sysv(struct sysinfo *) hidden;
i32 truncate$sysv(const char *, u64) hidden;
i32 uname$sysv(char *) hidden;
i32 unlinkat$sysv(i32, const char *, i32) hidden;
i32 utimes$sysv(const char *, const struct timeval *) hidden;
i32 wait4$sysv(i32, i32 *, i32, struct rusage *) hidden;
i64 copy_file_range$sysv(i32, long *, i32, long *, u64, u32) hidden;
i64 getrandom$sysv(void *, u64, u32) hidden;
i64 pread$sysv(i32, void *, u64, i64) hidden;
i64 preadv$sysv(i32, struct iovec *, i32, i64) hidden;
i64 pwrite$sysv(i32, const void *, u64, i64) hidden;
i64 pwritev$sysv(i32, const struct iovec *, i32, i64) hidden;
i64 read$sysv(i32, void *, u64) hidden;
i64 sendfile$sysv(i32, i32, i64 *, u64) hidden;
i64 splice$sysv(i32, i64 *, i32, i64 *, u64, u32) hidden;
i64 vmsplice$sysv(i32, const struct iovec *, i64, u32) hidden;
i64 write$sysv(i32, const void *, u64) hidden;
u32 getgid$sysv(void) hidden;
u32 getpid$sysv(void) hidden;
u32 gettid$sysv(void) hidden;
u32 getuid$sysv(void) hidden;
int setresuid$sysv(uint32_t, uint32_t, uint32_t) hidden;
int setresgid$sysv(uint32_t, uint32_t, uint32_t) hidden;
void *mmap$sysv(void *, u64, u32, u32, i64, i64) hidden;
void *mremap$sysv(void *, u64, u64, i32, void *) hidden;
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § syscalls » system five » support ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
int __getpid(void) hidden;
void __onfork(void) hidden;
bool32 __sigenter(i32, struct siginfo *, struct ucontext *) hidden;
i32 __mprotect(void *, u64, i32) privileged;
i32 fixupnewfd$sysv(i32, i32) hidden;
i32 tunefd$sysv(i32, i32, i32, i32) hidden;
u32 fprot2nt(i32, i32) hidden;
u32 prot2nt(i32, i32) privileged;
void __restore_rt() hidden;
void __sigenter$xnu(void *, i32, i32, void *, void *) hidden noreturn;
void stat2linux(void *) hidden;
void xnutrampoline(void *, i32, i32, const struct __darwin_siginfo *,
const struct __darwin_ucontext *) hidden noreturn;
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § syscalls » windows nt » veneers ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
int gettimeofday$nt(struct timeval *, struct timezone *) hidden;
bool32 isatty$nt(int) hidden;
char *getcwd$nt(char *, size_t) hidden;
int chdir$nt(const char *) hidden;
int close$nt(int) hidden;
int dup$nt(int, int, int) hidden;
int fadvise$nt(int, u64, u64, int) hidden;
int fcntl$nt(int, int, unsigned) hidden;
int getpriority$nt(int) hidden;
int setpriority$nt(int) hidden;
int fdatasync$nt(int) hidden;
int flock$nt(int, int) hidden;
int fstat$nt(i64, struct stat *) hidden;
int ftruncate$nt(int, u64) hidden;
int kill$nt(i64, int) hidden;
int link$nt(const char *, const char *) hidden;
int lstat$nt(const char *, struct stat *) hidden;
int madvise$nt(void *, size_t, int) hidden;
int msync$nt(void *, size_t, int) hidden;
ssize_t open$nt(const char *, u32, i32) nodiscard hidden;
int pipe$nt(int[hasatleast 2], unsigned) hidden;
int rename$nt(const char *, const char *) hidden;
int rmdir$nt(const char *) hidden;
int sched_yield$nt(void) hidden;
int stat$nt(const char *, struct stat *) hidden;
int symlink$nt(const char *, const char *) hidden;
int sysinfo$nt(struct sysinfo *) hidden;
int truncate$nt(const char *, u64) hidden;
int unlink$nt(const char *) hidden;
int wait4$nt(int, int *, int, struct rusage *) hidden;
i64 lseek$nt(int, i64, int) hidden;
ssize_t read$nt(struct Fd *, const struct iovec *, size_t, ssize_t) hidden;
ssize_t write$nt(struct Fd *, const struct iovec *, size_t, ssize_t) hidden;
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § syscalls » windows nt » support ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
int getsetpriority$nt(int, unsigned, int, int (*)(int));
void ntcontext2linux(struct ucontext *, const struct NtContext *) hidden;
struct NtOverlapped *offset2overlap(int64_t, struct NtOverlapped *) hidden;
bool32 ntsetprivilege(i64, const char16_t *, u32) hidden;
bool32 onntconsoleevent$nt(u32) hidden;
int ntaccesscheck(const char16_t *, u32) paramsnonnull() hidden;
i64 ntreturn(u32);
i64 winerr(void) nocallback privileged;
const char *__fixntmagicpath(const char *, unsigned) paramsnonnull() hidden;
int __mkntpath(const char *, unsigned, char16_t[hasatleast PATH_MAX - 16])
paramsnonnull() hidden;
#define mkntpath(PATH, PATH16) mkntpath2(PATH, -1u, PATH16)
#define mkntpath2(PATH, FLAGS, PATH16) \
({ \
int Count; \
asm("call\tmkntpath" \
: "=a"(Count), "=m"(*PATH16) \
: "D"(PATH), "S"(FLAGS), "d"(&PATH16[0]), "m"((PATH)[0]) \
: "cc"); \
Count; \
})
#define fixntmagicpath(PATH, FLAGS) \
({ \
const char *Path2; \
asm("call\tfixntmagicpath" \
: "=a"(Path2) \
: "D"(PATH), "S"(FLAGS), "m"((PATH)[0]) \
: "cc"); \
Path2; \
})
#undef sigset
#undef i32
#undef i64
#undef u32
#undef u64
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_ */
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