Re: reliable reproducer, was Re: core dump analysis
Andreas Schwab <[email protected]>
| Newsgroups | gmane.linux.ports.m68k,gmane.linux.debian.ports.68k |
|---|---|
| Message-ID | <[email protected]> |
On Apr 22 2023, Michael Schmitz wrote:
> This is the definition from the kernel's
> include/uapi/asm-generic/ucontext.h:
That's not actually used by m68k, it uses
arch/m68k/include/asm/ucontext.h, which confusingly isn't an uapi
header.
> And this is /usr/include/sys/ucontext.h:
>
> /* Userlevel context. */
> typedef struct ucontext
> {
> unsigned long int uc_flags;
> struct ucontext *uc_link;
> __sigset_t uc_sigmask;
> stack_t uc_stack;
> mcontext_t uc_mcontext;
> long int uc_filler[174];
> } ucontext_t;
>
> uc_sigmask appears before uc_stack and uc_mcontext.
Yes, that got fixed as part of commit 9c986f878a back in 2006.
> I'm assuming libc just passes on what the kernel set, without reordering?
Trying to rewrite the signal context would be prohibitive, yes.
--
Andreas Schwab, [email protected]
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."