mirror_ubuntu-kernels/arch/x86/um/shared/sysdep/stub.h
Benjamin Berg 76ed9158e1 um: Rework syscall handling
Rework syscall handling to be platform independent. Also create a clean
split between queueing of syscalls and flushing them out, removing the
need to keep state in the code that triggers the syscalls.

The code adds syscall_data_len to the global mm_id structure. This will
be used later to allow surrounding code to track whether syscalls still
need to run and if errors occurred.

Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Link: https://patch.msgid.link/20240703134536.1161108-5-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-07-03 17:09:49 +02:00

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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_clone_handler(void);