From e7d17e71cdc10a2e81e454ce3b9637f1b2a587f2 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Thu, 10 Jul 2014 01:47:33 +0400 Subject: [PATCH] Fix xtensa ld segfault when linking linux modules is_inconsistent_linkonce_section makes an assumption that section name that starts with ".gnu.linkonce.prop." has one more dot in its suffix. However gas generates such section name by insertion of "prop." right after ".gnu.linkonce." part of the name of the original section. So, for section named ".gnu.linkonce.this_module" corresponding property section name does not satisfy the assumption. Such section names are common in linux modules. This bug was exposed by the patch "a35d5e8 Fix alignment for the first section frag on xtensa", that makes gas produce property section for each section that has ".align" directive in it. Use suffix that immediately follows ".gnu.linkonce.prop." when there are no more dots following it. 2014-07-10 Max Filippov ld/ * emultempl/xtensaelf.em (is_inconsistent_linkonce_section): correctly handle missing dot in section name after ".gnu.linkonce.prop.". --- Backported from: e7d17e71cdc10a2e81e454ce3b9637f1b2a587f2 Changes to ld/ChangeLog file are dropped. ld/emultempl/xtensaelf.em | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ld/emultempl/xtensaelf.em b/ld/emultempl/xtensaelf.em index 151eea4..948d18d 100644 --- a/ld/emultempl/xtensaelf.em +++ b/ld/emultempl/xtensaelf.em @@ -1310,7 +1310,7 @@ is_inconsistent_linkonce_section (asection *sec) for Tensilica's XCC compiler. */ name = sec_name + linkonce_len; if (CONST_STRNEQ (name, "prop.")) - name = strchr (name + 5, '.') + 1; + name = strchr (name + 5, '.') ? strchr (name + 5, '.') + 1 : name + 5; else if (name[1] == '.' && (name[0] == 'p' || name[0] == 'e' || name[0] == 'h')) name += 2; -- 1.8.1.4