http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60007
Bug ID: 60007
Summary: preprocessor aborts with internal error when
redefining a flag set by -D option
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: preprocessor
Assignee: unassigned at gcc dot gnu.org
Reporter: lutzwei at gmx dot de
Consider the following program stored in file "test.c" :
-------------------------
#define ANY_FLAG
int main() { int i=1;}
-------------------------
If you issue the command
cpp -DANY_FLAG test.c
you get an internal compiler error abort as follows:
----------------------------------------------------------------------
# 1 "test.c"
# 1 "<command-line>"
# 1 "test.c"
test.c:1:0: warning: "ANY_FLAG" redefined [enabled by default]
#define ANY_FLAG
^
<command-line>:0:0: note: this is the location of the previous definition
test.c:1:0: internal compiler error: Segmentation fault
#define ANY_FLAG
^
0x99c5bf crash_signal
../../gcc-4.9.0/gcc/toplev.c:337
0xf0d747 add_file_to_cache_tab
../../gcc-4.9.0/gcc/input.c:296
0xf0d747 lookup_or_add_file_to_cache_tab
../../gcc-4.9.0/gcc/input.c:330
0xf0d747 location_get_source_line(expanded_location, int*)
../../gcc-4.9.0/gcc/input.c:704
0xf0868b diagnostic_show_locus(diagnostic_context*, diagnostic_info const*)
../../gcc-4.9.0/gcc/diagnostic.c:304
0xf096cb diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
../../gcc-4.9.0/gcc/diagnostic.c:800
0x5cd9f4 c_cpp_error(cpp_reader*, int, int, unsigned int, unsigned int, char
const*, __va_list_tag (*) [1])
../../gcc-4.9.0/gcc/c-family/c-common.c:9639
0xf17ef6 cpp_error_with_line(cpp_reader*, int, unsigned int, unsigned int, char
const*, ...)
../../gcc-4.9.0/libcpp/errors.c:163
0xf27f4f _cpp_create_definition
../../gcc-4.9.0/libcpp/macro.c:3124
0xf146f1 do_define
../../gcc-4.9.0/libcpp/directives.c:584
0xf15f27 _cpp_handle_directive
../../gcc-4.9.0/libcpp/directives.c:492
0xf22a2c _cpp_lex_token
../../gcc-4.9.0/libcpp/lex.c:2067
0xf2761f cpp_get_token_1
../../gcc-4.9.0/libcpp/macro.c:2362
0x5e995f scan_translation_unit
../../gcc-4.9.0/gcc/c-family/c-ppoutput.c:176
0x5e995f preprocess_file(cpp_reader*)
../../gcc-4.9.0/gcc/c-family/c-ppoutput.c:101
0x5e8378 c_common_init()
../../gcc-4.9.0/gcc/c-family/c-opts.c:1040
0x57aacd c_objc_common_init()
../../gcc-4.9.0/gcc/c/c-objc-common.c:65
0x99e616 lang_dependent_init
../../gcc-4.9.0/gcc/toplev.c:1712
0x99e616 do_compile
../../gcc-4.9.0/gcc/toplev.c:1900
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.
----------------------------------------------------------------------
The preprocessor version is:
-bash-4.1$ cpp -v
----------------------------------------------------------------------
Using built-in specs.
COLLECT_GCC=cpp
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.9.0/configure
LDFLAGS=-Wl,-rpath,/home/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/lib
--prefix=/home/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc
--with-gmp=/home/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc
--with-mpfr=/home/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc
--with-mpc=/home/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc
--with-gcc-version-trigger=/work/weimann/installs/gcc-4.9.0/gcc/version.c
--enable-languages=c,c++,f95 --disable-multilib
Thread model: posix
gcc version 4.9.0 20140124 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-E' '-v' '-mtune=generic' '-march=x86-64'
/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/cc1
-E -quiet -v -iprefix
/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.9.0/
- -mtune=generic -march=x86-64
ignoring nonexistent directory
"/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.9.0/../../../../x86_64-unknown-linux-gnu/include"
ignoring duplicate directory
"/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/../../lib/gcc/x86_64-unknown-linux-gnu/4.9.0/include"
ignoring duplicate directory
"/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/../../lib/gcc/x86_64-unknown-linux-gnu/4.9.0/include-fixed"
ignoring nonexistent directory
"/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/../../lib/gcc/x86_64-unknown-linux-gnu/4.9.0/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.9.0/include
/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.9.0/include-fixed
/usr/local/include
/nfs/datanumerik/archiv/software/linux64/gcc-4.9.0/gcc/bin/../lib/gcc/../../include
/usr/include
End of search list.
----------------------------------------------------------------------
The platform:
-bash-4.1$ uname -a
----------------------------------------------------------------------
Linux htc031.zib.de 3.8.13-16.2.1.el6uek.x86_64 #1 SMP Thu Nov 7 17:01:44 PST
2013 x86_64 x86_64 x86_64 GNU/Linux
----------------------------------------------------------------------
I also reproduced the same problem under WindowsPro8.1/CYGWIN-32bit.
