56 lines
1.7 KiB
Diff
56 lines
1.7 KiB
Diff
http://sourceware.org/ml/gdb-patches/2014-02/msg00731.html
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Subject: [patch] gdb_assert -> complaint for weird DWARF
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--6TrnltStXW4iwmi0
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline
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Hi,
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PR 16581:
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GDB crash on inherit_abstract_dies infinite recursion
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https://sourceware.org/bugzilla/show_bug.cgi?id=16581
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fixed crash from an infinite recursion. But in rare cases the new code can
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now gdb_assert() due to weird DWARF file.
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I do not yet fully understand why the DWARF is as it is but just GDB should
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never crash due to invalid DWARF anyway. The "invalid" DWARF I see only in
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Fedora GCC build, not in FSF GCC build, more info at:
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https://bugzilla.redhat.com/show_bug.cgi?id=1069382
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http://people.redhat.com/jkratoch/gcc-debuginfo-4.8.2-7.fc20.x86_64-gnatbind.debug
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Thanks,
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Jan
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--6TrnltStXW4iwmi0
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline; filename="complaint.patch"
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gdb/
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2014-02-24 Jan Kratochvil <jan.kratochvil@redhat.com>
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* dwarf2read.c (process_die): Change gdb_assert to complaint.
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Index: gdb-7.99.90.20170420/gdb/dwarf2read.c
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===================================================================
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--- gdb-7.99.90.20170420.orig/gdb/dwarf2read.c 2017-04-20 23:15:26.578897210 +0200
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+++ gdb-7.99.90.20170420/gdb/dwarf2read.c 2017-04-20 23:15:57.805106371 +0200
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@@ -8426,7 +8426,13 @@
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struct cleanup *in_process;
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/* We should only be processing those not already in process. */
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- gdb_assert (!die->in_process);
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+ if (die->in_process)
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+ {
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+ complaint (&symfile_complaints,
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+ _("DIE at 0x%x attempted to be processed twice"),
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+ to_underlying (die->sect_off));
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+ return;
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+ }
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die->in_process = 1;
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in_process = make_cleanup (reset_die_in_process,die);
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