gdb/gdb-6.5-bz218379-solib-trampoline-lookup-lock-fix.patch
Sergio Durigan Junior a5d2c85367 Rebase to FSF GDB 9.0.90.20200203 (9.1pre).
Bump 'snapgnulib' date.
Update URL to 'https'.
Adjust build-id patchset.
Adjust VLA patchset.
Drop 'gdb-6.8-bz436037-reg-no-longer-active.patch'.
Drop 'gdb-6.6-scheduler_locking-step-is-default.patch'.
2020-02-04 15:07:12 -05:00

28 lines
1.1 KiB
Diff

From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
From: Fedora GDB patches <invalid@email.com>
Date: Fri, 27 Oct 2017 21:07:50 +0200
Subject: gdb-6.5-bz218379-solib-trampoline-lookup-lock-fix.patch
;; Fix lockup on trampoline vs. its function lookup; unreproducible (BZ 218379).
;;=fedora
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218379
diff --git a/gdb/symtab.c b/gdb/symtab.c
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -3166,6 +3166,13 @@ find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent)
msymbol->linkage_name ()); */
;
/* fall through */
+ /* `msymbol' trampoline may be located before its .text symbol
+ but this text symbol may be the address we were looking for.
+ Avoid `find_pc_sect_line'<->`find_pc_line' infinite loop.
+ Red Hat Bug 218379. */
+ else if (BMSYMBOL_VALUE_ADDRESS (mfunsym) == pc)
+ warning ("In stub for %s (0x%s); interlocked, please submit the binary to http://bugzilla.redhat.com", msymbol.minsym->linkage_name (), paddress (target_gdbarch (), pc));
+ /* fall through */
else
return find_pc_line (BMSYMBOL_VALUE_ADDRESS (mfunsym), 0);
}