[binutils-gdb] gas: check section size against entry size

[Jan Beulich]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=85cced8e9b9942d223b3a54757d879000fc04b38

commit 85cced8e9b9942d223b3a54757d879000fc04b38
Author: Jan Beulich <jbeulich@suse.com>
Date:   Fri Aug 1 09:16:19 2025 +0200

    gas: check section size against entry size
    
    If a section has a non-zero entry size, its total size would generally
    better be a multiple of the entry size. Warn if that's not the case.

Diff:
---
 gas/write.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gas/write.c b/gas/write.c
index c56ad28ea51..9d304455338 100644
--- a/gas/write.c
+++ b/gas/write.c
@@ -632,6 +632,10 @@ size_seg (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *xxx ATTRIBUTE_UNUSED)
 #ifdef obj_frob_section
   obj_frob_section (sec);
 #endif
+
+  if (sec->entsize && (sec->size % sec->entsize))
+    as_warn (_("section `%s' size (%#" PRIx64 ") is not a multiple of its entry size %#x"),
+	     sec->name, (uint64_t) sec->size, sec->entsize);
 }
 
 #ifdef DEBUG2