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Remove some problematic APIs

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In order to improve our chances of success building other open source
projects we shouldn't define APIs that'll lead any ./configure script
astray. For example:

- brk() and sbrk() can break mac/windows support
- syscall() is a superb way to break portability
- arch_prctl() is the greatest of all horror shows
This commit is contained in:
Justine Tunney 2023-06-08 06:12:26 -07:00
parent 7512318a2a
commit 32682f0ce7
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
24 changed files with 37 additions and 919 deletions
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28
libc/calls/calls.h
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@ -68,13 +68,7 @@ COSMOPOLITAN_C_START_
typedef int sig_atomic_t;
bool fileexists(const char *);
bool isdirectory(const char *);
bool isexecutable(const char *);
bool isregularfile(const char *);
bool issymlink(const char *);
bool32 isatty(int) nosideeffect;
bool32 ischardev(int) nosideeffect;
char *commandv(const char *, char *, size_t);
char *get_current_dir_name(void) dontdiscard;
char *getcwd(char *, size_t);
@ -82,7 +76,6 @@ char *realpath(const char *, char *);
char *replaceuser(const char *) dontdiscard;
char *ttyname(int);
int access(const char *, int) dontthrow;
int arch_prctl();
int chdir(const char *);
int chmod(const char *, unsigned);
int chown(const char *, unsigned, unsigned);
@ -166,7 +159,6 @@ int reboot(int);
int remove(const char *);
int rename(const char *, const char *);
int renameat(int, const char *, int, const char *);
int renameat2(long, const char *, long, const char *, int);
int rmdir(const char *);
int sched_yield(void);
int seccomp(unsigned, unsigned, void *);
@ -214,11 +206,8 @@ int usleep(unsigned);
int vfork(void) returnstwice;
int wait(int *);
int waitpid(int, int *, int);
intptr_t syscall(int, ...);
long ptrace(int, ...);
ssize_t copy_file_range(int, long *, int, long *, size_t, unsigned);
ssize_t copyfd(int, int64_t *, int, int64_t *, size_t, unsigned);
ssize_t getfiledescriptorsize(int);
ssize_t lseek(int, int64_t, int);
ssize_t pread(int, void *, size_t, int64_t);
ssize_t pwrite(int, const void *, size_t, int64_t);
@ -235,6 +224,23 @@ unsigned getuid(void) libcesque;
unsigned umask(unsigned);
void sync(void);
#ifdef COSMO
#define fileexists __fileexists
#define isdirectory __isdirectory
#define isexecutable __isexecutable
#define isregularfile __isregularfile
#define issymlink __issymlink
#define ischardev __ischardev
#define copyfd __copyfd
bool fileexists(const char *);
bool isdirectory(const char *);
bool isexecutable(const char *);
bool isregularfile(const char *);
bool issymlink(const char *);
bool32 ischardev(int) nosideeffect;
ssize_t copyfd(int, int64_t *, int, int64_t *, size_t, unsigned);
#endif
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_SYSCALLS_H_ */