diff options
Diffstat (limited to 'arch/um/os-Linux/sys-x86_64')
| -rw-r--r-- | arch/um/os-Linux/sys-x86_64/Makefile | 2 | ||||
| -rw-r--r-- | arch/um/os-Linux/sys-x86_64/registers.c | 17 | ||||
| -rw-r--r-- | arch/um/os-Linux/sys-x86_64/signal.c | 16 |
3 files changed, 27 insertions, 8 deletions
diff --git a/arch/um/os-Linux/sys-x86_64/Makefile b/arch/um/os-Linux/sys-x86_64/Makefile index 340ef26f594..f67842a7735 100644 --- a/arch/um/os-Linux/sys-x86_64/Makefile +++ b/arch/um/os-Linux/sys-x86_64/Makefile @@ -3,7 +3,7 @@ # Licensed under the GPL # -obj-$(CONFIG_MODE_SKAS) = registers.o +obj-$(CONFIG_MODE_SKAS) = registers.o signal.o USER_OBJS := $(obj-y) diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c index becd898d939..cb8e8a26328 100644 --- a/arch/um/os-Linux/sys-x86_64/registers.c +++ b/arch/um/os-Linux/sys-x86_64/registers.c @@ -5,11 +5,11 @@ #include <errno.h> #include <string.h> -#include <setjmp.h> #include "ptrace_user.h" #include "uml-config.h" #include "skas_ptregs.h" #include "registers.h" +#include "longjmp.h" #include "user.h" /* These are set once at boot time and not changed thereafter */ @@ -78,11 +78,14 @@ void get_safe_registers(unsigned long *regs, unsigned long *fp_regs) HOST_FP_SIZE * sizeof(unsigned long)); } -void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer) +unsigned long get_thread_reg(int reg, jmp_buf *buf) { - struct __jmp_buf_tag *jmpbuf = buffer; - - UPT_SET(uml_regs, RIP, jmpbuf->__jmpbuf[JB_PC]); - UPT_SET(uml_regs, RSP, jmpbuf->__jmpbuf[JB_RSP]); - UPT_SET(uml_regs, RBP, jmpbuf->__jmpbuf[JB_RBP]); + switch(reg){ + case RIP: return buf[0]->__rip; + case RSP: return buf[0]->__rsp; + case RBP: return buf[0]->__rbp; + default: + printk("get_thread_regs - unknown register %d\n", reg); + return 0; + } } diff --git a/arch/um/os-Linux/sys-x86_64/signal.c b/arch/um/os-Linux/sys-x86_64/signal.c new file mode 100644 index 00000000000..3f369e5f976 --- /dev/null +++ b/arch/um/os-Linux/sys-x86_64/signal.c @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com) + * Licensed under the GPL + */ + +#include <signal.h> + +extern void (*handlers[])(int sig, struct sigcontext *sc); + +void hard_handler(int sig) +{ + struct ucontext *uc; + asm("movq %%rdx, %0" : "=r" (uc)); + + (*handlers[sig])(sig, (struct sigcontext *) &uc->uc_mcontext); +} |