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add generic system call forwarding

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This commit is contained in:
NAKAMURA Gou
2013-04-17 20:26:19 +09:00
parent d55bc511ea
commit e09160cce7
11 changed files with 212 additions and 17 deletions
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2
executer/user/Makefile.in
View File

@ -1,6 +1,6 @@
CC=@CC@
BINDIR=@BINDIR@
CFLAGS=-Wall -O
CFLAGS=-Wall -O -fPIE -pie
TARGET=mcexec
all: $(TARGET)

24
executer/user/mcexec.c
View File

@ -524,12 +524,31 @@ void do_syscall_load(int fd, int cpu, unsigned long dest, unsigned long src,
}
}
static long
do_generic_syscall(
struct syscall_wait_desc *w)
{
long ret;
__dprintf("do_generic_syscall(%ld)\n", w->sr.number);
errno = 0;
ret = syscall(w->sr.number, w->sr.args[0], w->sr.args[1], w->sr.args[2],
w->sr.args[3], w->sr.args[4], w->sr.args[5]);
if (errno != 0) {
ret = -errno;
}
__dprintf("do_generic_syscall(%ld):%ld (%#lx)\n", w->sr.number, ret, ret);
return ret;
}
#define SET_ERR(ret) if (ret == -1) ret = -errno
int main_loop(int fd, int cpu, pthread_mutex_t *lock)
{
struct syscall_wait_desc w;
int ret;
long ret;
w.cpu = cpu;
@ -837,7 +856,8 @@ int main_loop(int fd, int cpu, pthread_mutex_t *lock)
}
#endif
default:
__dprintf("Unhandled system calls: %ld\n", w.sr.number);
ret = do_generic_syscall(&w);
do_syscall_return(fd, cpu, ret, 0, 0, 0, 0);
break;
}