gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ptrace: Fix the timing of save_fp_regs, and Add copy fp_regs to child in clone_thread

Browse Source 
refs #702
This commit is contained in:
Ken Sato
2017-09-27 17:02:30 +09:00
parent 79b977ac06
commit a1a2900606
3 changed files with 32 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
kernel/process.c
View File

@@ -62,6 +62,7 @@ static void insert_vm_range_list(struct process_vm *vm,
static int copy_user_ranges(struct process_vm *vm, struct process_vm *orgvm);
extern void release_fp_regs(struct thread *proc);
extern void save_fp_regs(struct thread *proc);
extern void copy_fp_regs(struct thread *from, struct thread *to);
extern void restore_fp_regs(struct thread *proc);
extern void __runq_add_proc(struct thread *proc, int cpu_id);
extern void terminate_host(int pid);
@@ -389,6 +390,10 @@ clone_thread(struct thread *org, unsigned long pc, unsigned long sp,
/* NOTE: sp is the user mode stack! */
ihk_mc_init_user_process(&thread->ctx, &thread->uctx, ((char *)thread) +
KERNEL_STACK_NR_PAGES * PAGE_SIZE, pc, sp);
/* copy fp_regs from parent */
save_fp_regs(org);
copy_fp_regs(org, thread);
#ifdef POSTK_DEBUG_ARCH_DEP_23 /* add arch dep. clone_process() function */
arch_clone_thread(org, pc, sp, thread);
#endif /* POSTK_DEBUG_ARCH_DEP_23 */