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| author | Guo Ren <ren_guo@c-sky.com> | 2019-01-24 22:16:31 +0800 |
|---|---|---|
| committer | Guo Ren <ren_guo@c-sky.com> | 2019-02-13 09:48:14 +0800 |
| commit | 9216cd7231c12a8c391bb2c904d13695398d3453 (patch) | |
| tree | e3cde6584c453732a093d055134f6f21c8f1ff6e /arch/csky | |
| parent | 62eebea655d4be5a20fd563abfd7656724cdcd00 (diff) | |
| download | linux-0-day-9216cd7231c12a8c391bb2c904d13695398d3453.tar.gz linux-0-day-9216cd7231c12a8c391bb2c904d13695398d3453.tar.xz | |
csky: Fixup wrong pt_regs size
The bug is from commit 2054f4af1957 ("csky: bugfix gdb coredump error.")
We change the ELF_NGREG to ELF_NGREG - 2 to fit gdb&gcc define, but forgot
modify ptrace regset.
Now coredump use ELF_NRGEG to parse GPRs and ptrace use pt_regs_regset, so
there are two different reg_sets for userspace.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/kernel/ptrace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/csky/kernel/ptrace.c b/arch/csky/kernel/ptrace.c index 57f1afe19a52c..f2f12fff36f70 100644 --- a/arch/csky/kernel/ptrace.c +++ b/arch/csky/kernel/ptrace.c @@ -8,6 +8,7 @@ #include <linux/ptrace.h> #include <linux/regset.h> #include <linux/sched.h> +#include <linux/sched/task_stack.h> #include <linux/signal.h> #include <linux/smp.h> #include <linux/uaccess.h> @@ -159,7 +160,7 @@ static int fpr_set(struct task_struct *target, static const struct user_regset csky_regsets[] = { [REGSET_GPR] = { .core_note_type = NT_PRSTATUS, - .n = ELF_NGREG, + .n = sizeof(struct pt_regs) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), .get = &gpr_get, |