linux/arch/x86/um/shared/sysdep/stub.h
Benjamin Berg dac494bf54 um: Add stub side of SECCOMP/futex based process handling
This adds the stub side for the new seccomp process management code. In
this case we do register save/restore through the signal handler
mcontext.

Add special code for handling TLS, which for x86_64 means setting the
FS_BASE/GS_BASE registers while for i386 it means calling the
set_thread_area syscall.

Co-authored-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20250602130052.545733-3-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-06-02 15:17:19 +02:00

17 lines
422 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#include <asm/unistd.h>
#include <sys/mman.h>
#include <signal.h>
#include <as-layout.h>
#include <stub-data.h>
#ifdef __i386__
#include "stub_32.h"
#else
#include "stub_64.h"
#endif
extern void stub_segv_handler(int, siginfo_t *, void *);
extern void stub_syscall_handler(void);
extern void stub_signal_interrupt(int, siginfo_t *, void *);
extern void stub_signal_restorer(void);