[deliverable/linux.git] / arch / um / os-Linux / tls.c

#include <errno.h>
#include <sys/ptrace.h>
#include "sysdep/tls.h"

/* TLS support - we basically rely on the host's one.*/

#ifndef PTRACE_GET_THREAD_AREA
#define PTRACE_GET_THREAD_AREA 25
#endif

#ifndef PTRACE_SET_THREAD_AREA
#define PTRACE_SET_THREAD_AREA 26
#endif

int os_set_thread_area(user_desc_t *info, int pid)
{
	int ret;

	ret = ptrace(PTRACE_SET_THREAD_AREA, pid, info->entry_number,
		     (unsigned long) info);
	if (ret < 0)
		ret = -errno;
	return ret;
}

int os_get_thread_area(user_desc_t *info, int pid)
{
	int ret;

	ret = ptrace(PTRACE_GET_THREAD_AREA, pid, info->entry_number,
		     (unsigned long) info);
	if (ret < 0)
		ret = -errno;
	return ret;
}
Commit	Line	Data
aa6758d4 PBG	1	#include <errno.h>
aa6758d4 PBG	2	#include <sys/ptrace.h>
dd77aec0	3	#include "sysdep/tls.h"
aa6758d4 PBG	4
	5	/* TLS support - we basically rely on the host's one.*/
	6
aa6758d4 PBG	7	#ifndef PTRACE_GET_THREAD_AREA
	8	#define PTRACE_GET_THREAD_AREA 25
	9	#endif
	10
	11	#ifndef PTRACE_SET_THREAD_AREA
	12	#define PTRACE_SET_THREAD_AREA 26
	13	#endif
	14
dd77aec0	15	int os_set_thread_area(user_desc_t *info, int pid)
aa6758d4	16	{
aa6758d4 PBG	17	int ret;
	18
	19	ret = ptrace(PTRACE_SET_THREAD_AREA, pid, info->entry_number,
	20	(unsigned long) info);
	21	if (ret < 0)
	22	ret = -errno;
	23	return ret;
	24	}
	25
dd77aec0	26	int os_get_thread_area(user_desc_t *info, int pid)
aa6758d4	27	{
aa6758d4 PBG	28	int ret;
	29
	30	ret = ptrace(PTRACE_GET_THREAD_AREA, pid, info->entry_number,
	31	(unsigned long) info);
	32	if (ret < 0)
	33	ret = -errno;
	34	return ret;
	35	}