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[Bug middle-end/20934] New: [4.1 Regression] Segmentation fault in gnat1
- From: "danglin at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Apr 2005 20:47:44 -0000
- Subject: [Bug middle-end/20934] New: [4.1 Regression] Segmentation fault in gnat1
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
stage1/xgcc -Bstage1/ -B/home/dave/opt/gnu/gcc/gcc-4.1.0/hppa-linux/bin/ -c -g -
O2 -gnatpg -gnata -I- -I. -Iada -I../../gcc/gcc/ada ../../gcc/gcc/ada/ada.a
ds -o ada/ada.o
+===========================GNAT BUG DETECTED==============================+
| 4.1.0 20050410 (experimental) (hppa-unknown-linux-gnu) Segmentation fault|
| Error detected at ada.ads:17:1 |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html. |
| Use a subject line meaningful to you and us to track the bug. |
| Include the entire contents of this bug box in the report. |
| Include the exact gcc or gnatmake command that you entered. |
| Also include sources listed below in gnatchop format |
| (concatenated together with no headers between files). |
+==========================================================================+
This is the backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x008bdd88 in in_unlikely_text_section () at ../../gcc/gcc/varasm.c:309
309 ret_val = ((in_section == in_unlikely_executed_text)
(gdb) bt
#0 0x008bdd88 in in_unlikely_text_section () at ../../gcc/gcc/varasm.c:309
#1 0x008be220 in named_section_real (name=0xaa8900 ".debug_info", flags=1024,
decl=0x0) at ../../gcc/gcc/varasm.c:444
#2 0x0060a640 in output_comp_unit (die=0x4000b150, output_if_empty=0)
at ../../gcc/gcc/dwarf2out.c:7108
#3 0x0062229c in dwarf2out_finish (
filename=0xbff0007c "../../gcc/gcc/ada/ada.ads")
at ../../gcc/gcc/dwarf2out.c:13916
#4 0x00880d78 in compile_file () at ../../gcc/gcc/toplev.c:1038
#5 0x00883c1c in do_compile () at ../../gcc/gcc/toplev.c:2120
#6 0x00883cc0 in toplev_main (argc=15, argv=0xbff005d4)
at ../../gcc/gcc/toplev.c:2152
#7 0x003ff3dc in main (argc=15, argv=0xbff005d4) at ../../gcc/gcc/main.c:35
0x008bdd84 <in_unlikely_text_section+160>: ldw c(,r3),r19
0x008bdd88 <in_unlikely_text_section+164>: ldw ec(,r19),r19
0x008bdd8c <in_unlikely_text_section+168>: cmpib,=,n 0,r19,0x8bddbc <
in_unlikely_text_section+216>
(gdb) p/x $r19
$4 = 0x0
(gdb) p cfun
$5 = (struct function *) 0x0
(gdb) p in_section
$6 = in_named
It looks as if we need a check on cfun:
309 ret_val = ((in_section == in_unlikely_executed_text)
310 || (in_section == in_named
311 && cfun->unlikely_text_section_name
312 && strcmp (in_named_name,
313 cfun->unlikely_text_section_name) == 0));
--
Summary: [4.1 Regression] Segmentation fault in gnat1
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: danglin at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: hppa-unknown-linux-gnu
GCC host triplet: hppa-unknown-linux-gnu
GCC target triplet: hppa-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20934