diff options
Diffstat (limited to 'grub-core/gdb_grub.in')
| -rw-r--r-- | grub-core/gdb_grub.in | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/grub-core/gdb_grub.in b/grub-core/gdb_grub.in new file mode 100644 index 0000000..e322d3d --- /dev/null +++ b/grub-core/gdb_grub.in @@ -0,0 +1,85 @@ +### +### Load debuging information about GNU GRUB 2 modules into GDB +### automatically. Needs readelf, Perl and gmodule.pl script +### +### Has to be launched from the writable and trusted +### directory containing *.image and *.module +### +### $Id: .gdbinit,v 1.1 2006/05/14 11:38:08 lkundrak Exp $ +### Lubomir Kundrak <lkudrak@skosi.org> +### + +# Add section numbers and addresses to .segments.tmp +define dump_module_sections + set $mod = $arg0 + + # FIXME: save logging status + set logging file .segments.tmp + set logging redirect on + set logging overwrite off + set logging on + + printf "%s", $mod->name + set $segment = $mod->segment + while ($segment) + printf " %i 0x%lx", $segment->section, $segment->addr + set $segment = $segment->next + end + printf "\n" + + set logging off + # FIXME: restore logging status +end +document dump_module_sections + Gather information about module whose mod structure was + given for use with match_and_load_symbols +end + +# Generate and execute GDB commands and delete temporary files +# afterwards +define match_and_load_symbols + shell perl gmodule.pl <.segments.tmp >.loadsym.gdb + source .loadsym.gdb + shell rm -f .segments.tmp .loadsym.gdb +end +document match_and_load_symbols + Launch script, that matches section names with information + generated by dump_module_sections and load debugging info + apropriately +end + +### + +define load_module + dump_module_sections $arg0 + match_and_load_symbols +end +document load_module + Load debugging information for module given as argument. +end + +define load_all_modules + set $this = grub_dl_head + while ($this != 0) + dump_module_sections $this + set $this = $this->next + end + match_and_load_symbols +end +document load_all_modules + Load debugging information for all loaded modules. +end + +### + +set confirm off +file kernel.exec +target remote :1234 + +# inform when module is loaded +break grub_dl_add +commands + silent + load_module mod + cont +end |