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

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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
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3
arch/x86/kernel/syscall.c
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@@ -33,7 +33,6 @@
void terminate(int, int);
extern long do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact);
long syscall(int num, ihk_mc_user_context_t *ctx);
extern void save_fp_regs(struct thread *proc);
void set_signal(int sig, void *regs0, siginfo_t *info);
void check_signal(unsigned long rc, void *regs0, int num);
extern unsigned long do_fork(int, unsigned long, unsigned long, unsigned long,
@@ -460,7 +459,6 @@ void set_single_step(struct thread *thread)
long ptrace_read_fpregs(struct thread *thread, void *fpregs)
{
save_fp_regs(thread);
if (thread->fp_regs == NULL) {
return -ENOMEM;
}
@@ -470,7 +468,6 @@ long ptrace_read_fpregs(struct thread *thread, void *fpregs)
long ptrace_write_fpregs(struct thread *thread, void *fpregs)
{
save_fp_regs(thread);
if (thread->fp_regs == NULL) {
return -ENOMEM;
}