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[PATCH] elflint: Add _edata and _end to the list of possibly dangling gnuld symbols.
- From: Mark Wielaard <mjw at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Thu, 31 Dec 2015 23:25:30 +0100
- Subject: [PATCH] elflint: Add _edata and _end to the list of possibly dangling gnuld symbols.
gnuld might keep dangling/unused symbols around (see sourceware PR13621).
Add _edata (end of initialized data address) and _end (end of uninitialized
data address) to that list. They might have been added by gnuld even if
there is no such [un]initialized data. Also add the double underscore
variants which are used on some architectures.
Signed-off-by: Mark Wielaard <mjw@redhat.com>
---
src/ChangeLog | 5 +++++
src/elflint.c | 6 +++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/ChangeLog b/src/ChangeLog
index 3f970a2..9ed151c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2015-12-31 Mark Wielaard <mjw@redhat.com>
+
+ * elflint.c (check_symtab): Add _edata and _end (plus extra underscore
+ variants) to to the list of possibly dangling symbols.
+
2015-12-16 Mark Wielaard <mjw@redhat.com>
* elfcompress.c: New file.
diff --git a/src/elflint.c b/src/elflint.c
index 86cf331..7a7b9ce 100644
--- a/src/elflint.c
+++ b/src/elflint.c
@@ -801,7 +801,11 @@ section [%2d] '%s': symbol %zu: function in COMMON section is nonsense\n"),
&& strcmp (name, "__bss_start") != 0
&& strcmp (name, "__bss_start__") != 0
&& strcmp (name, "__TMC_END__") != 0
- && strcmp (name, ".TOC.") != 0))
+ && strcmp (name, ".TOC.") != 0
+ && strcmp (name, "_edata") != 0
+ && strcmp (name, "__edata") != 0
+ && strcmp (name, "_end") != 0
+ && strcmp (name, "__end") != 0))
ERROR (gettext ("\
section [%2d] '%s': symbol %zu: st_value out of bounds\n"),
idx, section_name (ebl, idx), cnt);
--
2.5.0