| Summary: | ICE using C++ exceptions in Objective-C++ | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Braden Obrzut <admin> |
| Component: | objc++ | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | major | CC: | egallager |
| Priority: | P3 | Keywords: | EH |
| Version: | 5.1.0 | ||
| Target Milestone: | --- | ||
| Host: | Target: | ||
| Build: | Known to work: | 4.2.1, 4.5.4, 4.7.4, 4.8.5, 5.5.0, 6.4.0, 7.2.0 | |
| Known to fail: | 4.6.4, 4.9.2, 8.0 | Last reconfirmed: | 2017-07-23 00:00:00 |
| Attachments: | Minimal example | ||
Confirmed; message I get now with trunk is:
$ /usr/local/bin/g++ -c 35756.mm
during GIMPLE pass: eh
35756.mm: In function ‘void Problem()’:
35756.mm:1:6: internal compiler error: in objc_eh_runtime_type, at objc/objc-next-runtime-abi-01.c:2791
void Problem()
^~~~~~~
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
Attaching gdb to get a backtrace, I get:
Breakpoint 2, 0x00fb3c74 in internal_error ()
(gdb) bt
#0 0x00fb3c74 in internal_error ()
warning: .o file "/private/var/root/gcc-git/my_oddly_named_builddir/./mpfr/src/.libs/libmpfr.a(mpfr-gmp.o)" more recent than executable timestamp
#1 0x014e9561 in fancy_abort ()
#2 0x012db91c in objc_eh_runtime_type ()
#3 0x007b571b in add_type_for_runtime ()
#4 0x007b57ab in gen_eh_region_catch ()
#5 0x00c676c1 in lower_eh_constructs_1 ()
#6 0x00c68deb in (anonymous namespace)::pass_lower_eh::execute ()
#7 0x00af3550 in execute_one_pass ()
#8 0x00af3eb9 in execute_pass_list_1 ()
#9 0x00af3f0e in execute_pass_list ()
#10 0x006bed49 in cgraph_node::analyze ()
#11 0x006c1d3d in analyze_functions ()
#12 0x006c2c42 in symbol_table::finalize_compilation_unit ()
#13 0x00bee32a in compile_file ()
#14 0x01b02420 in toplev::main ()
#15 0x01b03a34 in main ()
I'll have to rebuild with debug info to get a better backtrace.
Huh, I tested this testcase with more versions of gcc, and it works with all the versions I have installed from MacPorts, but still fails with the latest version I built myself... maybe it's a difference in configure options? Although I try to keep mine pretty similar to those that MacPorts uses... (In reply to Eric Gallager from comment #1) > Confirmed; message I get now with trunk is: > > $ /usr/local/bin/g++ -c 35756.mm > during GIMPLE pass: eh > 35756.mm: In function ‘void Problem()’: > 35756.mm:1:6: internal compiler error: in objc_eh_runtime_type, at > objc/objc-next-runtime-abi-01.c:2791 > void Problem() > ^~~~~~~ > libbacktrace could not find executable to open > Please submit a full bug report, > with preprocessed source if appropriate. > See <https://gcc.gnu.org/bugs/> for instructions. > > Attaching gdb to get a backtrace, I get: > > Breakpoint 2, 0x00fb3c74 in internal_error () > (gdb) bt > #0 0x00fb3c74 in internal_error () > warning: .o file > "/private/var/root/gcc-git/my_oddly_named_builddir/./mpfr/src/.libs/libmpfr. > a(mpfr-gmp.o)" more recent than executable timestamp > #1 0x014e9561 in fancy_abort () > #2 0x012db91c in objc_eh_runtime_type () > #3 0x007b571b in add_type_for_runtime () > #4 0x007b57ab in gen_eh_region_catch () > #5 0x00c676c1 in lower_eh_constructs_1 () > #6 0x00c68deb in (anonymous namespace)::pass_lower_eh::execute () > #7 0x00af3550 in execute_one_pass () > #8 0x00af3eb9 in execute_pass_list_1 () > #9 0x00af3f0e in execute_pass_list () > #10 0x006bed49 in cgraph_node::analyze () > #11 0x006c1d3d in analyze_functions () > #12 0x006c2c42 in symbol_table::finalize_compilation_unit () > #13 0x00bee32a in compile_file () > #14 0x01b02420 in toplev::main () > #15 0x01b03a34 in main () > > I'll have to rebuild with debug info to get a better backtrace. Actually looking at the backtrace makes me think this is a dup of bug 61759 *** This bug has been marked as a duplicate of bug 61759 *** |
Created attachment 35756 [details] Minimal example A rather simple program using C++ exceptions in Objective-C++ can generate an ICE. exceptionice.mm: In function 'void Problem()': exceptionice.mm:1:6: internal compiler error: in objc_eh_runtime_type, at objc/objc-next-runtime-abi-01.c:2804 void Problem() ^ Compiled on Mac OS X 10.4 on a PowerMac G4 with the following configuration: CC=gcc-4.2 CXX=g++-4.2 AS=/opt/cctools/usr/bin/as AS_FOR_TARGET=/opt/cctools/usr/bin/as ../GCC/configure --prefix=/opt/gcc/5 --disable-nls --enable-languages=c,c++,objc,obj-c++,lto --disable-multilib --with-dwarf2 Command line used to get the error is: /opt/gcc/5/bin/g++ exceptionice.mm