Re: [PATCH v6 27/29] x86/boot/compressed: Remove, discard, or assert for unwanted sections

On Fri, Aug 21, 2020 at 02:21:34PM -0700, Kees Cook wrote:

On Fri, Aug 21, 2020 at 04:01:59PM -0400, Arvind Sankar wrote:

quoted

On Fri, Aug 21, 2020 at 12:43:08PM -0700, Kees Cook wrote:

quoted

In preparation for warning on orphan sections, stop the linker from
generating the .eh_frame* sections, discard unwanted non-zero-sized
generated sections, and enforce other expected-to-be-zero-sized sections
(since discarding them might hide problems with them suddenly gaining
unexpected entries).

Signed-off-by: Kees Cook <redacted>
 	.rel.dyn : {
-		*(.rel.*)
+		*(.rel.*) *(.rel_*)
 	}
 	ASSERT(SIZEOF(.rel.dyn) == 0, "Unexpected run-time relocations (.rel) detected!")
 
 	.rela.dyn : {
-		*(.rela.*)
+		*(.rela.*) *(.rela_*)
 	}
 	ASSERT(SIZEOF(.rela.dyn) == 0, "Unexpected run-time relocations (.rela) detected!")
 }
-- 
2.25.1

When do you get .rela_?

i386 builds, IIRC. I can try to hunt that down if you want?

-- 
Kees Cook

Nah, just curious.

Thanks.

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