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uml: delete unused code

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Get rid of a bunch of unused stuff -
	cpu_feature had no users
	linux_prog is little-used, so its declaration is moved to the
user for easy deletion when the whole file goes away
	a long-unused debugging aid in helper.c is gone

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>
This commit is contained in:
Jeff Dike 2007-05-06 14:50:57 -07:00 committed by Linus Torvalds
parent 7a3e965abf
commit 11100b1dfb
7 changed files with 3 additions and 66 deletions
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1
arch/um/include/kern_util.h
View File

@ -23,7 +23,6 @@ struct kern_handlers {
extern const struct kern_handlers handlinfo_kern;
extern int ncpus;
extern char *linux_prog;
extern char *gdb_init;
extern int kmalloc_ok;
extern int jail;

1
arch/um/include/user_util.h
View File

@ -60,7 +60,6 @@ extern void kill_child_dead(int pid);
extern int cont(int pid);
extern void check_sigio(void);
extern void arch_check_bugs(void);
extern int cpu_feature(char *what, char *buf, int len);
extern int arch_handle_signal(int sig, union uml_pt_regs *regs);
extern int arch_fixup(unsigned long address, void *sc_ptr);
extern void arch_init_thread(void);

2
arch/um/kernel/tt/gdb.c
View File

@ -115,6 +115,8 @@ struct gdb_data {
int err;
};
extern char *linux_prog;
static void config_gdb_cb(void *arg)
{
struct gdb_data *data = arg;

11
arch/um/os-Linux/helper.c
View File

@ -25,23 +25,12 @@ struct helper_data {
char *buf;
};
/* Debugging aid, changed only from gdb */
int helper_pause = 0;
static void helper_hup(int sig)
{
}
static int helper_child(void *arg)
{
struct helper_data *data = arg;
char **argv = data->argv;
int errval;
if (helper_pause){
signal(SIGHUP, helper_hup);
pause();
}
if (data->pre_exec != NULL)
(*data->pre_exec)(data->pre_data);
errval = execvp_noalloc(data->buf, argv[0], argv);

8
arch/um/os-Linux/main.c
View File

@ -25,12 +25,7 @@
#include "os.h"
#include "um_malloc.h"
/* Set in set_stklim, which is called from main and __wrap_malloc.
* __wrap_malloc only calls it if main hasn't started.
*/
unsigned long stacksizelim;
/* Set in main */
/* Set in main, unchanged thereafter */
char *linux_prog;
#define PGD_BOUND (4 * 1024 * 1024)
@ -52,7 +47,6 @@ static void set_stklim(void)
exit(1);
}
}
stacksizelim = (lim.rlim_cur + PGD_BOUND - 1) & ~(PGD_BOUND - 1);
}
static __init void do_uml_initcalls(void)

23
arch/um/sys-i386/bugs.c
View File

@ -79,29 +79,6 @@ static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
return(0);
}
int cpu_feature(char *what, char *buf, int len)
{
int fd, ret = 0;
fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0);
if(fd < 0){
printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd);
return(0);
}
if(!find_cpuinfo_line(fd, what, buf, len)){
printk("Couldn't find '%s' line in /proc/cpuinfo\n", what);
goto out_close;
}
token(fd, buf, len, '\n');
ret = 1;
out_close:
os_close_file(fd);
return(ret);
}
static int check_cpu_flag(char *feature, int *have_it)
{
char buf[MAXTOKEN], c;

23
arch/um/sys-x86_64/bugs.c
View File

@ -88,29 +88,6 @@ static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
return(0);
}
int cpu_feature(char *what, char *buf, int len)
{
int fd, ret = 0;
fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0);
if(fd < 0){
printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd);
return(0);
}
if(!find_cpuinfo_line(fd, what, buf, len)){
printk("Couldn't find '%s' line in /proc/cpuinfo\n", what);
goto out_close;
}
token(fd, buf, len, '\n');
ret = 1;
out_close:
os_close_file(fd);
return(ret);
}
/* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end