Re: [PATCH v3 09/19] unwind: Introduce sframe user space unwinding

From: Josh Poimboeuf
Date: Fri Nov 01 2024 - 15:33:17 EST


On Fri, Nov 01, 2024 at 02:09:08PM -0500, Segher Boessenkool wrote:
> On Thu, Oct 31, 2024 at 04:03:13PM -0700, Josh Poimboeuf wrote:
> > Actually I just double checked and even the kernel's ELF loader assumes
> > that each executable has only a single text start+end address pair.
>
> Huh? What makes you think that? There can be many executable PT_LOAD
> segments in each and every binary.

Right, but for executables (not shared libraries) the kernel seems to
assume they're contiguous? See the 'start_code' and 'end_code'
variables in load_elf_binary() load_elf_interp().

--
Josh