diff options
| -rw-r--r-- | arch/um/os-Linux/skas/process.c | 4 | ||||
| -rw-r--r-- | arch/um/sys-x86/Makefile | 2 | ||||
| -rw-r--r-- | arch/um/sys-x86/shared/sysdep/stub.h | 9 | ||||
| -rw-r--r-- | arch/um/sys-x86/shared/sysdep/stub_32.h | 7 | ||||
| -rw-r--r-- | arch/um/sys-x86/shared/sysdep/stub_64.h | 7 | ||||
| -rw-r--r-- | arch/um/sys-x86/stub_segv.c (renamed from arch/um/sys-x86/stub_segv_64.c) | 7 | ||||
| -rw-r--r-- | arch/um/sys-x86/stub_segv_32.c | 17 |
7 files changed, 14 insertions, 39 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 2a72bfcd7aba..f481d745e231 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -255,8 +255,8 @@ static int userspace_tramp(void *stack) set_sigstack((void *) STUB_DATA, UM_KERN_PAGE_SIZE); sigemptyset(&sa.sa_mask); - sa.sa_flags = SA_ONSTACK | SA_NODEFER; - sa.sa_handler = (void *) v; + sa.sa_flags = SA_ONSTACK | SA_NODEFER | SA_SIGINFO; + sa.sa_sigaction = (void *) v; sa.sa_restorer = NULL; if (sigaction(SIGSEGV, &sa, NULL) < 0) { printk(UM_KERN_ERR "userspace_tramp - setting SIGSEGV " diff --git a/arch/um/sys-x86/Makefile b/arch/um/sys-x86/Makefile index 671de0b45dd8..81ab3484a430 100644 --- a/arch/um/sys-x86/Makefile +++ b/arch/um/sys-x86/Makefile @@ -10,7 +10,7 @@ endif obj-y = bug.o bugs_$(BITS).o delay_$(BITS).o fault.o ksyms.o ldt.o \ ptrace_$(BITS).o ptrace_user.o setjmp_$(BITS).o signal_$(BITS).o \ - stub_$(BITS).o stub_segv_$(BITS).o syscalls_$(BITS).o \ + stub_$(BITS).o stub_segv.o syscalls_$(BITS).o \ sys_call_table_$(BITS).o sysrq_$(BITS).o tls_$(BITS).o mem_$(BITS).o ifeq ($(CONFIG_X86_32),y) diff --git a/arch/um/sys-x86/shared/sysdep/stub.h b/arch/um/sys-x86/shared/sysdep/stub.h index 13f523a3fcfa..bd161e300102 100644 --- a/arch/um/sys-x86/shared/sysdep/stub.h +++ b/arch/um/sys-x86/shared/sysdep/stub.h @@ -1,5 +1,14 @@ +#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_clone_handler(void); diff --git a/arch/um/sys-x86/shared/sysdep/stub_32.h b/arch/um/sys-x86/shared/sysdep/stub_32.h index cca14d4ddf52..51fd256c75f0 100644 --- a/arch/um/sys-x86/shared/sysdep/stub_32.h +++ b/arch/um/sys-x86/shared/sysdep/stub_32.h @@ -6,14 +6,7 @@ #ifndef __SYSDEP_STUB_H #define __SYSDEP_STUB_H -#include <sys/mman.h> #include <asm/ptrace.h> -#include <asm/unistd.h> -#include "as-layout.h" -#include "stub-data.h" - -extern void stub_segv_handler(int sig); -extern void stub_clone_handler(void); #define STUB_SYSCALL_RET EAX #define STUB_MMAP_NR __NR_mmap2 diff --git a/arch/um/sys-x86/shared/sysdep/stub_64.h b/arch/um/sys-x86/shared/sysdep/stub_64.h index 922a5702c8d8..994df93c5ed3 100644 --- a/arch/um/sys-x86/shared/sysdep/stub_64.h +++ b/arch/um/sys-x86/shared/sysdep/stub_64.h @@ -6,14 +6,7 @@ #ifndef __SYSDEP_STUB_H #define __SYSDEP_STUB_H -#include <sys/mman.h> -#include <asm/unistd.h> #include <sysdep/ptrace_user.h> -#include "as-layout.h" -#include "stub-data.h" - -extern void stub_segv_handler(int sig); -extern void stub_clone_handler(void); #define STUB_SYSCALL_RET PT_INDEX(RAX) #define STUB_MMAP_NR __NR_mmap diff --git a/arch/um/sys-x86/stub_segv_64.c b/arch/um/sys-x86/stub_segv.c index ced051afc705..f62771cf236e 100644 --- a/arch/um/sys-x86/stub_segv_64.c +++ b/arch/um/sys-x86/stub_segv.c @@ -3,18 +3,15 @@ * Licensed under the GPL */ -#include <signal.h> -#include "as-layout.h" #include "sysdep/stub.h" #include "sysdep/faultinfo.h" #include "sysdep/sigcontext.h" void __attribute__ ((__section__ (".__syscall_stub"))) -stub_segv_handler(int sig) +stub_segv_handler(int sig, siginfo_t *info, void *p) { - struct ucontext *uc; + struct ucontext *uc = p; - __asm__ __volatile__("movq %%rdx, %0" : "=g" (uc) :); GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA), &uc->uc_mcontext); trap_myself(); diff --git a/arch/um/sys-x86/stub_segv_32.c b/arch/um/sys-x86/stub_segv_32.c deleted file mode 100644 index 28ccf737a79f..000000000000 --- a/arch/um/sys-x86/stub_segv_32.c +++ /dev/null @@ -1,17 +0,0 @@ -/* - * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) - * Licensed under the GPL - */ - -#include "sysdep/stub.h" -#include "sysdep/sigcontext.h" - -void __attribute__ ((__section__ (".__syscall_stub"))) -stub_segv_handler(int sig) -{ - struct sigcontext *sc = (struct sigcontext *) (&sig + 1); - - GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA), sc); - - trap_myself(); -} |