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From 61b08178e4cafca911bf909f54f8c373f16f0a70 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Sun, 17 Oct 2021 17:34:46 +1030
Subject: [PATCH] PR28459, readelf issues bogus warning
I'd missed the fact that the .debug_rnglists dump doesn't exactly
display the contents of the section. Instead readelf rummages through
.debug_info looking for DW_AT_ranges entries, then displays the
entries in .debug_rnglists pointed at, sorted. A simpler dump of the
actual section contents might be more useful and robust, but it was
likely done that way to detect overlap and holes.
Anyway, the headers in .debug_rnglists besides the first are ignored,
and limiting to the unit length of the first header fails if there is
more than one unit.
PR 28459
* dwarf.c (display_debug_ranges): Don't constrain data to length
in header.
(cherry picked from commit e7f024765a48fba4452535a5fc006a7e858730fd)
---
binutils/dwarf.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index 1e7f4db7b7c..e73078f496f 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -7727,7 +7727,6 @@ display_debug_ranges (struct dwarf_section *section,
return 0;
}
}
- finish = start + initial_length;
/* Get and check the version number. */
SAFE_BYTE_GET_AND_INC (version, start, 2, finish);
--
2.27.0
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