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From: "klkblake at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/25678] New: gdb crashes with "internal-error:
 sect_index_text not initialized" when .text missing and >2 segments
Date: Sun, 15 Mar 2020 02:24:27 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D25678

            Bug ID: 25678
           Summary: gdb crashes with "internal-error: sect_index_text not
                    initialized" when .text missing and >2 segments
           Product: gdb
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: klkblake at gmail dot com
  Target Milestone: ---

Created attachment 12379
  --> https://sourceware.org/bugzilla/attachment.cgi?id=3D12379&action=3Ded=
it
testcase for sect_index_text crash

When loading a shared library that has no .text section, and does not have
either 1 or 2 segments, gdb will fail with "internal-error: sect_index_text=
 not
initialized". I've attached a minimal testcase.

$ cat >test.c <<EOF
int main() {}
EOF
$ gcc test.c ./libtestcase.so
$ gdb ./a.out
... <snip> ...
GNU gdb (GDB) 10.0.50.20200307-git
... <snip> ...
Reading symbols from ./a.out...
(gdb) r
Starting program: /tmp/a.out=20
../../gdb/objfiles.h:524: internal-error: sect_index_text not initialized
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)

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