diff options
Diffstat (limited to 'arch/um/include/shared/skas/stub-data.h')
| -rw-r--r-- | arch/um/include/shared/skas/stub-data.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/um/include/shared/skas/stub-data.h b/arch/um/include/shared/skas/stub-data.h index 81a4cace032c..c261a77a32f6 100644 --- a/arch/um/include/shared/skas/stub-data.h +++ b/arch/um/include/shared/skas/stub-data.h @@ -11,8 +11,15 @@ #include <linux/compiler_types.h> #include <as-layout.h> #include <sysdep/tls.h> +#include <sysdep/stub-data.h> +#include <mm_id.h> + +#define FUTEX_IN_CHILD 0 +#define FUTEX_IN_KERN 1 struct stub_init_data { + int seccomp; + unsigned long stub_start; int stub_code_fd; @@ -20,7 +27,8 @@ struct stub_init_data { int stub_data_fd; unsigned long stub_data_offset; - unsigned long segv_handler; + unsigned long signal_handler; + unsigned long signal_restorer; }; #define STUB_NEXT_SYSCALL(s) \ @@ -52,6 +60,16 @@ struct stub_data { /* 128 leaves enough room for additional fields in the struct */ struct stub_syscall syscall_data[(UM_KERN_PAGE_SIZE - 128) / sizeof(struct stub_syscall)] __aligned(16); + /* data shared with signal handler (only used in seccomp mode) */ + short restart_wait; + unsigned int futex; + int signal; + unsigned short si_offset; + unsigned short mctx_offset; + + /* seccomp architecture specific state restore */ + struct stub_data_arch arch_data; + /* Stack for our signal handlers and for calling into . */ unsigned char sigstack[UM_KERN_PAGE_SIZE] __aligned(UM_KERN_PAGE_SIZE); }; |