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-rw-r--r--arch/um/os-Linux/skas/process.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 120a21c5883f..bbf34cb91ce1 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -310,16 +310,12 @@ void userspace(union uml_pt_regs *regs)
310 } 310 }
311 } 311 }
312} 312}
313#define INIT_JMP_NEW_THREAD 0
314#define INIT_JMP_REMOVE_SIGSTACK 1
315#define INIT_JMP_CALLBACK 2
316#define INIT_JMP_HALT 3
317#define INIT_JMP_REBOOT 4
318 313
319int copy_context_skas0(unsigned long new_stack, int pid) 314int copy_context_skas0(unsigned long new_stack, int pid)
320{ 315{
321 int err; 316 int err;
322 unsigned long regs[MAX_REG_NR]; 317 unsigned long regs[HOST_FRAME_SIZE];
318 unsigned long fp_regs[HOST_FP_SIZE];
323 unsigned long current_stack = current_stub_stack(); 319 unsigned long current_stack = current_stub_stack();
324 struct stub_data *data = (struct stub_data *) current_stack; 320 struct stub_data *data = (struct stub_data *) current_stack;
325 struct stub_data *child_data = (struct stub_data *) new_stack; 321 struct stub_data *child_data = (struct stub_data *) new_stack;
@@ -334,7 +330,7 @@ int copy_context_skas0(unsigned long new_stack, int pid)
334 .timer = ((struct itimerval) 330 .timer = ((struct itimerval)
335 { { 0, 1000000 / hz() }, 331 { { 0, 1000000 / hz() },
336 { 0, 1000000 / hz() }})}); 332 { 0, 1000000 / hz() }})});
337 get_safe_registers(regs); 333 get_safe_registers(regs, fp_regs);
338 334
339 /* Set parent's instruction pointer to start of clone-stub */ 335 /* Set parent's instruction pointer to start of clone-stub */
340 regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE + 336 regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE +
@@ -350,6 +346,11 @@ int copy_context_skas0(unsigned long new_stack, int pid)
350 panic("copy_context_skas0 : PTRACE_SETREGS failed, " 346 panic("copy_context_skas0 : PTRACE_SETREGS failed, "
351 "pid = %d, errno = %d\n", pid, errno); 347 "pid = %d, errno = %d\n", pid, errno);
352 348
349 err = ptrace_setfpregs(pid, fp_regs);
350 if(err < 0)
351 panic("copy_context_skas0 : PTRACE_SETFPREGS failed, "
352 "pid = %d, errno = %d\n", pid, errno);
353
353 /* set a well known return code for detection of child write failure */ 354 /* set a well known return code for detection of child write failure */
354 child_data->err = 12345678; 355 child_data->err = 12345678;
355 356
@@ -457,6 +458,12 @@ void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
457 set_signals(flags); 458 set_signals(flags);
458} 459}
459 460
461#define INIT_JMP_NEW_THREAD 0
462#define INIT_JMP_REMOVE_SIGSTACK 1
463#define INIT_JMP_CALLBACK 2
464#define INIT_JMP_HALT 3
465#define INIT_JMP_REBOOT 4
466
460void thread_wait(void *sw, void *fb) 467void thread_wait(void *sw, void *fb)
461{ 468{
462 sigjmp_buf buf, **switch_buf = sw, *fork_buf; 469 sigjmp_buf buf, **switch_buf = sw, *fork_buf;