I can't get GCC trunk to compile on mingw32. The build dies with the following segfault:
/home/coudert/ibin/./gcc/xgcc -B/home/coudert/ibin/./gcc/ -B/mingw/i686-pc-mingw32/bin/ -B/mingw/i686-pc-mingw32/lib/ -isystem /mingw/i686-pc-mingw32/include -isystem /mingw/i686-pc-mingw32/sys-include -O2 -I../../gcc/gcc/../winsup/w32api/include -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include -I/home/coudert/local/include -I../../gcc/gcc/../libdecnumber -I../libdecnumber -DL__main -c ../../gcc/gcc/libgcc2.c -o libgcc/./__main.o ../../gcc/gcc/libgcc2.c: In function '__do_global_ctors': ../../gcc/gcc/libgcc2.c:2109: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. make[4]: *** [libgcc/./__main.o] Error 1 make[4]: Leaving directory `/home/coudert/ibin/gcc' make[3]: *** [libgcc.a] Error 2 make[3]: Leaving directory `/home/coudert/ibin/gcc' make[2]: *** [all-stage1-gcc] Error 2 make[2]: Leaving directory `/home/coudert/ibin' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/coudert/ibin' make: *** [all] Error 2 The gdb backtrace of the segfault is Program received signal SIGSEGV, Segmentation fault. 0x00a7068f in df_chain_unlink (dflow=0x1857c38, ref=0x184d4d8, link=0x184e1f8) at ../../gcc/gcc/df-problems.c:110 110 chain = chain->next; (gdb) where #0 0x00a7068f in df_chain_unlink (dflow=0x1857c38, ref=0x184d4d8, link=0x184e1f8) at ../../gcc/gcc/df-problems.c:110 #1 0x00a706d8 in df_chain_unlink (dflow=0x1857c38, ref=0x184d418, link=0x0) at ../../gcc/gcc/df-problems.c:125 #2 0x00ab9cd4 in df_reg_chain_unlink (dflow=0x189d700, ref=0x184d418) at ../../gcc/gcc/df-scan.c:635 #3 0x00ab9fdd in df_insn_refs_delete (dflow=0x189d700, insn=0x18c5348) at ../../gcc/gcc/df-scan.c:743 #4 0x00aba0b7 in df_bb_refs_delete (dflow=0x189d700, bb_index=5) at ../../gcc/gcc/df-scan.c:768 #5 0x00ab903b in df_scan_free_bb_info (dflow=0x189d700, bb=0x18ab7d0, vbb_info=0x164fae0) at ../../gcc/gcc/df-scan.c:189 #6 0x00a6e3f9 in df_set_blocks (df=0x176a118, blocks=0x164f83c) at ../../gcc/gcc/df-core.c:373 During symbol reading, struct/union type gets multiply defined: union tree_node. During symbol reading, struct/union type gets multiply defined: struct basic_block_def. During symbol reading, struct/union type gets multiply defined: union tree_node. During symbol reading, struct/union type gets multiply defined: union tree_node. During symbol reading, struct/union type gets multiply defined: struct rtx_def. #7 0x008991d6 in iv_analysis_loop_init (loop=<incomplete type>) at ../../gcc/gcc/loop-iv.c:267 #8 0x0087e321 in predict_loops (loops_info=0x22fd40, rtlsimpleloops=1 '\001') at ../../gcc/gcc/predict.c:618 #9 0x0087ebb6 in estimate_probability (loops_info=0x22fd40) at ../../gcc/gcc/predict.c:842 #10 0x007b1f12 in rest_of_handle_branch_prob () at ../../gcc/gcc/profile.c:1363 #11 0x006d4e23 in execute_one_pass (pass=0xafc6b0) at ../../gcc/gcc/passes.c:849 #12 0x006d4ede in execute_pass_list (pass=0xafc6b0) at ../../gcc/gcc/passes.c:881 #13 0x006d4ef9 in execute_pass_list (pass=0xafb370) at ../../gcc/gcc/passes.c:882 #14 0x006d27ce in tree_rest_of_compilation (fndecl=0x1897a00) at ../../gcc/gcc/tree-optimize.c:412 #15 0x0041f8fd in c_expand_body (fndecl=0x1897a00) at ../../gcc/gcc/c-decl.c:6689 #16 0x006cb06c in cgraph_expand_function (node=0x1897c80) at ../../gcc/gcc/cgraphunit.c:1098 #17 0x006cb2ef in cgraph_expand_all_functions () at ../../gcc/gcc/cgraphunit.c:1164 #18 0x006cbd27 in cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:1431 #19 0x00422621 in c_write_global_declarations () at ../../gcc/gcc/c-decl.c:7804 #20 0x0065b9cb in compile_file () at ../../gcc/gcc/toplev.c:1003 #21 0x0065d125 in do_compile () at ../../gcc/gcc/toplev.c:1948 #22 0x0065d188 in toplev_main (argc=49, argv=0x3d48c0) at ../../gcc/gcc/toplev.c:1980 #23 0x004a53ec in main (argc=49, argv=0x3d48c0) at ../../gcc/gcc/main.c:35 -- Summary: segfault on mingw32 Product: gcc Version: 4.2.0 Status: UNCONFIRMED Keywords: build Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: fxcoudert at gcc dot gnu dot org GCC build triplet: i686-pc-mingw32 GCC host triplet: i686-pc-mingw32 GCC target triplet: i686-pc-mingw32 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25887
