[PATCH] uml: libc-dependent code should call libc directly
We shouldn't be using the os wrappers from os code - we can use libc directly.
This patch replaces wrapper calls with libc calls.
It turns out that os_sigio_async had only one caller, which was in startup.c,
so that function is moved there and its name changed.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 537084f..735d035 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -54,7 +54,7 @@
perror("ptrace");
os_kill_process(pid, 0);
}
- os_stop_process(pid);
+ kill(pid, SIGSTOP);
/*This syscall will be intercepted by the parent. Don't call more than
* once, please.*/
@@ -417,7 +417,7 @@
static inline void check_skas3_proc_mm(void)
{
printf(" - /proc/mm...");
- if (os_access("/proc/mm", OS_ACC_W_OK) < 0) {
+ if (access("/proc/mm", W_OK) < 0) {
proc_mm = 0;
printf("not found\n");
}
@@ -452,9 +452,9 @@
int __init parse_iomem(char *str, int *add)
{
struct iomem_region *new;
- struct uml_stat buf;
+ struct stat64 buf;
char *file, *driver;
- int fd, err, size;
+ int fd, size;
driver = str;
file = strchr(str,',');
@@ -464,15 +464,14 @@
}
*file = '\0';
file++;
- fd = os_open_file(file, of_rdwr(OPENFLAGS()), 0);
+ fd = open(file, O_RDWR, 0);
if(fd < 0){
os_print_error(fd, "parse_iomem - Couldn't open io file");
goto out;
}
- err = os_stat_fd(fd, &buf);
- if(err < 0){
- os_print_error(err, "parse_iomem - cannot stat_fd file");
+ if(fstat64(fd, &buf) < 0){
+ perror("parse_iomem - cannot stat_fd file");
goto out_close;
}
@@ -482,7 +481,7 @@
goto out_close;
}
- size = (buf.ust_size + UM_KERN_PAGE_SIZE) & ~(UM_KERN_PAGE_SIZE - 1);
+ size = (buf.st_size + UM_KERN_PAGE_SIZE) & ~(UM_KERN_PAGE_SIZE - 1);
*new = ((struct iomem_region) { .next = iomem_regions,
.driver = driver,
@@ -495,7 +494,7 @@
return 0;
out_close:
- os_close_file(fd);
+ close(fd);
out:
return 1;
}
@@ -528,6 +527,24 @@
info->err = -errno;
}
+static int async_pty(int master, int slave)
+{
+ int flags;
+
+ flags = fcntl(master, F_GETFL);
+ if(flags < 0)
+ return -errno;
+
+ if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) ||
+ (fcntl(master, F_SETOWN, os_getpid()) < 0))
+ return -errno;
+
+ if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0))
+ return -errno;
+
+ return(0);
+}
+
static void __init check_one_sigio(void (*proc)(int, int))
{
struct sigaction old, new;
@@ -553,7 +570,7 @@
if (err < 0)
panic("check_sigio : __raw failed, errno = %d\n", -err);
- err = os_sigio_async(master, slave);
+ err = async_pty(master, slave);
if(err < 0)
panic("tty_fds : sigio_async failed, err = %d\n", -err);