Commit 7852ee06 authored by Benjamin Berg's avatar Benjamin Berg Committed by Johannes Berg
Browse files

um: Remove unused os_process_pc 



The function is not used anywhere in the codebase.

Signed-off-by: default avatarBenjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20240913134442.967599-2-benjamin@sipsolutions.net


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 8cf0b939

arch/um/include/shared/os.h

+0 −1
Original line number Diff line number Diff line
@@ -199,7 +199,6 @@ extern int create_mem_file(unsigned long long len); 
extern void report_enomem(void);



/* process.c */

extern unsigned long os_process_pc(int pid);

extern int os_process_parent(int pid);

extern void os_alarm_process(int pid);

extern void os_stop_process(int pid);

arch/um/os-Linux/process.c

+0 −33
Original line number Diff line number Diff line
@@ -18,44 +18,11 @@ 
#include <longjmp.h>

#include <os.h>



#define ARBITRARY_ADDR -1

#define FAILURE_PID    -1



#define STAT_PATH_LEN sizeof("/proc/#######/stat\0")

#define COMM_SCANF "%*[^)])"



unsigned long os_process_pc(int pid)

{

	char proc_stat[STAT_PATH_LEN], buf[256];

	unsigned long pc = ARBITRARY_ADDR;

	int fd, err;



	sprintf(proc_stat, "/proc/%d/stat", pid);

	fd = open(proc_stat, O_RDONLY, 0);

	if (fd < 0) {

		printk(UM_KERN_ERR "os_process_pc - couldn't open '%s', "

		       "errno = %d\n", proc_stat, errno);

		goto out;

	}

	CATCH_EINTR(err = read(fd, buf, sizeof(buf)));

	if (err < 0) {

		printk(UM_KERN_ERR "os_process_pc - couldn't read '%s', "

		       "err = %d\n", proc_stat, errno);

		goto out_close;

	}

	os_close_file(fd);

	pc = ARBITRARY_ADDR;

	if (sscanf(buf, "%*d " COMM_SCANF " %*c %*d %*d %*d %*d %*d %*d %*d "

		   "%*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d "

		   "%*d %*d %*d %*d %*d %lu", &pc) != 1)

		printk(UM_KERN_ERR "os_process_pc - couldn't find pc in '%s'\n",

		       buf);

 out_close:

	close(fd);

 out:

	return pc;

}



int os_process_parent(int pid)

{

	char stat[STAT_PATH_LEN];