http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46902
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2010-12-13 19:02:59 UTC --- GDB session: (gdb) watch -location global_options.x_plugindir_string Hardware watchpoint 1: *(const char **) 12424292 (gdb) run -fplugin=foo /opt/gcc/gcc-4.6-work/gcc/testsuite/gcc.dg/plugin/plugindir4.c Starting program: /opt/gcc/gcc4.6w/libexec/gcc/powerpc-apple-darwin9/4.6.0/cc1 -fplugin=foo /opt/gcc/gcc-4.6-work/gcc/testsuite/gcc.dg/plugin/plugindir4.c Reading symbols for shared libraries +++++++++++warning: Could not find object file "/sw/src/fink.build/libiconv-1.12-4/libiconv-1.12/lib/.libs/iconv.o" - no debug information available for "./iconv.c". warning: Could not find object file "/sw/src/fink.build/libiconv-1.12-4/libiconv-1.12/lib/.libs/localcharset.o" - no debug information available for "./../libcharset/lib/localcharset.c". warning: Could not find object file "/sw/src/fink.build/libiconv-1.12-4/libiconv-1.12/lib/.libs/relocatable.o" - no debug information available for "./relocatable.c". .......... done Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_INVALID_ADDRESS at address: 0xfffffffc 0x94afe928 in strlen () (gdb) bt #0 0x94afe928 in strlen () #1 0x008b6414 in concat (first=0xffffffff <Address 0xffffffff out of bounds>) at ../../gcc-4.6-work/libiberty/concat.c:76 #2 0x0051e624 in add_new_plugin (plugin_name=0xbfffdac2 "foo") at ../../gcc-4.6-work/gcc/plugin.c:157 #3 0x0051584c in handle_common_deferred_options () at ../../gcc-4.6-work/gcc/opts-global.c:385 #4 0x005e3808 in toplev_main (argc=3, argv=0xffffffff) at ../../gcc-4.6-work/gcc/toplev.c:1923 #5 0x000024f4 in start () (gdb) watch global_options.x_plugindir_string Hardware watchpoint 2: global_options.x_plugindir_string (gdb) run -fplugin=foo /opt/gcc/gcc-4.6-work/gcc/testsuite/gcc.dg/plugin/plugindir4.c The program being debugged has been started already. Start it from the beginning? (y or n) y Starting program: /opt/gcc/gcc4.6w/libexec/gcc/powerpc-apple-darwin9/4.6.0/cc1 -fplugin=foo /opt/gcc/gcc-4.6-work/gcc/testsuite/gcc.dg/plugin/plugindir4.c Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_INVALID_ADDRESS at address: 0xfffffffc 0x94afe928 in strlen ()
