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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org> To: gdb-prs@sourceware.org Subject: [Bug gdb/26393] gdbtypes.h:526: internal-error: LONGEST dynamic_prop::const_val() const: Assertion `m_kind == PROP_CONST' failed. (recursive_dump_type) Date: Mon, 17 Aug 2020 07:54:41 +0000 [thread overview] Message-ID: <bug-26393-4717-j5fEWSpfBL@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-26393-4717@http.sourceware.org/bugzilla/> https://sourceware.org/bugzilla/show_bug.cgi?id=26393 --- Comment #2 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tom de Vries <vries@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=53d5a2a5c146f98dd525eda2f33d7781666463bf commit 53d5a2a5c146f98dd525eda2f33d7781666463bf Author: Tom de Vries <tdevries@suse.de> Date: Mon Aug 17 09:54:37 2020 +0200 [gdb] Fix printing of unresolved dynamic type When debugging gdb in batch mode with executable mixed-lang-stack and doing a backtrace at breakpt: ... $ gdb --args gdb \ -batch \ outputs/gdb.fortran/mixed-lang-stack/mixed-lang-stack \ -ex "b breakpt" \ -ex r \ -ex bt ... and stopping at resolve_dynamic_type to print the type: ... (gdb) b resolve_dynamic_type Breakpoint 1 at 0x6b020c: file gdbtypes.c, line 2633. (gdb) commands Type commands for breakpoint(s) 1, one per line. End with a line saying just "end". >call recursive_dump_type (type, 0) >continue >end (gdb) run ... we eventually run into an assert for the dynamic type of "str": ... Thread 1 "gdb" hit Breakpoint 1, resolve_dynamic_type (type=0x22204f0, \ valaddr=..., addr=4199408) at gdbtypes.c:2633 2633 = {check_typedef (type), valaddr, addr, NULL}; type node 0x22204f0 name '<NULL>' (0x0) code 0xd (TYPE_CODE_STRING) length 0 ... nfields 0 0x22204b0 gdbtypes.h:526: internal-error: LONGEST dynamic_prop::const_val() const: \ Assertion `m_kind == PROP_CONST' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. ... when trying to print the high bound of a TYPE_CODE_RANGE, which has m_kind PROP_LOCEXPR, while the code in resolve_dynamic_type assumes PROP_CONST. Fix this by extending the printing of TYPE_CODE_RANGE to allow PROP_LOCEXPR/PROP_LOCLIST as well, such that we have instead: ... nfields 0 0x1fbc020 low 1 high (dynamic) ... Tested on x86_64-linux. gdb/ChangeLog: 2020-08-17 Tom de Vries <tdevries@suse.de> PR gdb/26393 * gdbtypes.c (dump_dynamic_prop): New function. (recursive_dump_type): Use dump_dynamic_prop for TYPE_CODE_RANGE. -- You are receiving this mail because: You are on the CC list for the bug.
next prev parent reply other threads:[~2020-08-17 7:54 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-08-15 8:26 [Bug gdb/26393] New: gdbtypes.h:526: internal-error: LONGEST dynamic_prop::const_val() const: Assertion `m_kind == PROP_CONST' failed. (dump_recursive_type) vries at gcc dot gnu.org 2020-08-16 15:55 ` [Bug gdb/26393] gdbtypes.h:526: internal-error: LONGEST dynamic_prop::const_val() const: Assertion `m_kind == PROP_CONST' failed. (recursive_dump_type) vries at gcc dot gnu.org 2020-08-17 1:58 ` simark at simark dot ca 2020-08-17 7:54 ` cvs-commit at gcc dot gnu.org [this message] 2020-08-17 7:58 ` vries at gcc dot gnu.org
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