Hello,
On Fri, May 12, 2023 at 10:15 PM Bruno Haible wrote:
> make no sense to me. After this statement, sigsp is
> either 0x
> or 0x0010.
>
> If aligning SP is intended, the line should read
>
> sigsp = (void *) ((uintptr_t) sigsp & -16UL);
Indeed -- thank you
Hi,
In the file glibc/sysdeps/mach/hurd/x86/trampoline.c lines 199..204
#ifdef __x86_64__
/* Align SP at 16 bytes. Coupled with the fact that sigreturn_addr is
16-byte aligned within the stackframe struct, this ensures that it ends
up on a 16-byte aligned address, as required by the
