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From: "jan.kratochvil at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug plugins/65817] New: libcc1: ICE: SEGV: c_incomplete_type_error()
Date: Mon, 20 Apr 2015 18:33:00 -0000 [thread overview]
Message-ID: <bug-65817-4@http.gcc.gnu.org/bugzilla/> (raw)
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65817
Bug ID: 65817
Summary: libcc1: ICE: SEGV: c_incomplete_type_error()
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: plugins
Assignee: unassigned at gcc dot gnu.org
Reporter: jan.kratochvil at redhat dot com
CC: pmuldoon at redhat dot com
Host: x86_64-linux-gnu
Target: x86_64-linux-gnu
r222230
Current libcc1 uses just: make_node (RECORD_TYPE)
which crashes on:
if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
as TYPE_NAME (type) == NULL .
Actual:
*** WARNING *** there are active plugins, do not report this as a bug unless
you can reproduce it without enabling any plugins.
Event | Plugins
PLUGIN_PRE_GENERICIZE | libcc1plugin
PLUGIN_GGC_MARKING | libcc1plugin
PLUGIN_PRAGMAS | libcc1plugin
gdb command line:1:1: internal compiler error: Segmentation fault
0xb1c4af crash_signal
../../gccgitatsign/gcc/toplev.c:383
0x618794 c_incomplete_type_error(tree_node const*, tree_node const*)
../../gccgitatsign/gcc/c/c-typeck.c:282
0x623750 c_incomplete_type_error(tree_node const*, tree_node const*)
../../gccgitatsign/gcc/c/c-typeck.c:235
0x623750 build_component_ref(unsigned int, tree_node*, tree_node*)
../../gccgitatsign/gcc/c/c-typeck.c:2304
0x654fb3 c_parser_postfix_expression_after_primary
../../gccgitatsign/gcc/c/c-parser.c:7925
0x6478f6 c_parser_postfix_expression
../../gccgitatsign/gcc/c/c-parser.c:7715
0x649f5a c_parser_unary_expression
../../gccgitatsign/gcc/c/c-parser.c:6602
0x65122f c_parser_cast_expression
../../gccgitatsign/gcc/c/c-parser.c:6440
0x651412 c_parser_binary_expression
../../gccgitatsign/gcc/c/c-parser.c:6255
0x651f75 c_parser_conditional_expression
../../gccgitatsign/gcc/c/c-parser.c:6031
0x652560 c_parser_expr_no_commas
../../gccgitatsign/gcc/c/c-parser.c:5949
0x652c52 c_parser_expression
../../gccgitatsign/gcc/c/c-parser.c:8022
0x653689 c_parser_expression_conv
../../gccgitatsign/gcc/c/c-parser.c:8055
0x661978 c_parser_statement_after_labels
../../gccgitatsign/gcc/c/c-parser.c:5115
0x663173 c_parser_compound_statement_nostart
../../gccgitatsign/gcc/c/c-parser.c:4701
0x66399e c_parser_compound_statement
../../gccgitatsign/gcc/c/c-parser.c:4538
0x661a67 c_parser_statement_after_labels
../../gccgitatsign/gcc/c/c-parser.c:4964
0x663173 c_parser_compound_statement_nostart
../../gccgitatsign/gcc/c/c-parser.c:4701
0x66399e c_parser_compound_statement
../../gccgitatsign/gcc/c/c-parser.c:4538
0x65fc80 c_parser_declaration_or_fndef
../../gccgitatsign/gcc/c/c-parser.c:1982
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Compilation failed.
Expected:
gdb command line:1:1: error: invalid use of incomplete typedef â({anonymous})â
1586c8fbaf0116931ffacd1746a6540c81c2d438 GDB commit
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From: "jan.kratochvil at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug plugins/65817] libcc1: ICE: SEGV: c_incomplete_type_error()
Date: Mon, 20 Apr 2015 18:35:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide817
--- Comment #1 from Jan Kratochvil <jan.kratochvil at redhat dot com> ---
Created attachment 35368
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id5368&actioníit
GDB patch
GDB patch to crash GCC.
together with:
cat >1.c <<EOH
// b tree.c:build_qualified_type
// p TYPE_SIZE (type)
volatile struct sv { volatile struct sv *p; } sv; // CRASH: compile code sv.p &sv;
volatile struct s { int i; } s, *sp; // OK: compile code sp = &s;
int main(void) { return 0; }
EOH
gcc -o 1 1.c -Wall -g;noGDBHOOK=1
PATH="/home/jkratoch/redhat/gccgitatsign-root/bin:$PATH"
LD_LIBRARY_PATH=/home/jkratoch/redhat/gccgitatsign-root/lib64 ../gdb ./1 -ex
start -ex 'set debug compile 0' -ex 'compile code sv.p = &sv;printf("%p
%p\n",&sv,sv.p);'
next reply other threads:[~2015-04-20 18:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-20 18:33 jan.kratochvil at redhat dot com [this message]
2015-04-20 18:38 ` [Bug plugins/65817] " jan.kratochvil at redhat dot com
2021-01-24 20:15 ` tromey at gcc dot gnu.org
2022-01-09 22:35 ` [Bug libcc1/65817] " tromey at gcc dot gnu.org
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