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Syscall bindings

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This commit is contained in:
Kevin Lange 2013-04-22 22:36:56 -07:00
parent 6f096454cd
commit ae1d555a13
2 changed files with 35 additions and 8 deletions
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2
toolchain/patches/newlib/include/syscall.h
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@ -96,6 +96,8 @@ DECL_SYSCALL1(open_serial, int);
DECL_SYSCALL2(sleepabs, unsigned long, unsigned long);
DECL_SYSCALL2(nanosleep, unsigned long, unsigned long);
DECL_SYSCALL3(ioctl, int, int, void *);
DECL_SYSCALL2(access, char *, int);
DECL_SYSCALL2(stat, char *, void *);
#endif
/*

41
toolchain/patches/newlib/toaru/syscalls.c
View File

@ -12,6 +12,7 @@
#include <sys/utsname.h>
#include <sys/termios.h>
#include <stdio.h>
#include <stdarg.h>
#include <utime.h>
#include <signal.h>
@ -73,6 +74,7 @@ DEFN_SYSCALL2(sleepabs, 45, unsigned long, unsigned long);
DEFN_SYSCALL2(nanosleep, 46, unsigned long, unsigned long);
DEFN_SYSCALL3(ioctl, 47, int, int, void *);
DEFN_SYSCALL2(access, 48, char *, int);
DEFN_SYSCALL2(stat, 49, char *, void *);
#define DEBUG_STUB(...) { char buf[512]; sprintf(buf, "\033[1;32mUserspace Debug\033[0m pid%d ", getpid()); syscall_print(buf); sprintf(buf, __VA_ARGS__); syscall_print(buf); }
@ -91,7 +93,14 @@ int execve(const char *name, char * const argv[], char * const envp[]) {
}
int execvp(const char *file, char *const argv[]) {
return execve(file,argv,environ);
if (file && (!strstr(file, "/"))) {
/* We don't quite understand "$PATH", so... */
char buf[1024];
snprintf(buf, 1024, "/bin/%s", file);
execve(buf, argv, environ);
} else {
return execve(file,argv,environ);
}
}
int execv(const char * file, char *const argv[]) {
@ -160,7 +169,19 @@ int lseek(int file, int ptr, int dir) {
}
int open(const char *name, int flags, ...) {
return syscall_open(name,flags, 0);
va_list argp;
int mode;
int result;
va_start(argp, flags);
if (flags & O_CREAT) mode = va_arg(argp, int);
va_end(argp);
result = syscall_open(name, flags, mode);
if (result == -1) {
/* XXX get reason */
errno = EACCES;
}
return result;
}
int read(int file, char *ptr, int len) {
@ -177,13 +198,13 @@ int fstat(int file, struct stat *st) {
}
int stat(const char *file, struct stat *st){
int i = open(file, 0);
if (i >= 0) {
int ret = fstat(i, st);
close(i);
int ret = syscall_stat((char *)file, (uintptr_t)st);
if (ret >= 0) {
return ret;
} else {
return -1;
errno = ENOENT; /* meh */
memset(st, 0x00, sizeof(struct stat));
return ret;;
}
}
@ -381,7 +402,11 @@ int unlink(char *name) {
}
int access(const char *pathname, int mode) {
return syscall_access((char *)pathname, mode);
int result = syscall_access((char *)pathname, mode);
if (result < 0) {
errno = ENOENT; /* XXX */
}
return result;
}
long pathconf(char *path, int name) {