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28 lines
1.1 KiB
28 lines
1.1 KiB
2 weeks ago
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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Fedora GDB patches <invalid@email.com>
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Date: Fri, 27 Oct 2017 21:07:50 +0200
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Subject: gdb-6.5-bz218379-solib-trampoline-lookup-lock-fix.patch
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;; Fix lockup on trampoline vs. its function lookup; unreproducible (BZ 218379).
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;;=fedora
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https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218379
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diff --git a/gdb/symtab.c b/gdb/symtab.c
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--- a/gdb/symtab.c
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+++ b/gdb/symtab.c
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@@ -3169,6 +3169,13 @@ find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent)
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msymbol->linkage_name ()); */
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;
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/* fall through */
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+ /* `msymbol' trampoline may be located before its .text symbol
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+ but this text symbol may be the address we were looking for.
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+ Avoid `find_pc_sect_line'<->`find_pc_line' infinite loop.
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+ Red Hat Bug 218379. */
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+ else if (BMSYMBOL_VALUE_ADDRESS (mfunsym) == pc)
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+ 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));
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+ /* fall through */
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else
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{
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/* Detect an obvious case of infinite recursion. If this
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