From 82372b2f2747d347e24bb10ddc7bc7e828222a42 Mon Sep 17 00:00:00 2001 From: John Baldwin Date: Wed, 15 Jun 2016 21:33:42 -0700 Subject: [PATCH] Add a gdbarch 'print_auxv_entry' method for FreeBSD ABIs. Add a 'print_auxv_entry' method for FreeBSD ABIs that parses FreeBSD-specific auxiliary vector entries and outputs a suitable description using fprint_auxv_entry. gdb/ChangeLog: * fbsd-tdep.c: Include "auxv.h". (fbsd_print_auxv_entry): New function. (fbsd_init_abi): Install gdbarch "print_auxv_entry" method. --- gdb/ChangeLog | 6 ++++++ gdb/fbsd-tdep.c | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index c7c71d7b974..22234be5d72 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,9 @@ +2016-06-24 John Baldwin + + * fbsd-tdep.c: Include "auxv.h". + (fbsd_print_auxv_entry): New function. + (fbsd_init_abi): Install gdbarch "print_auxv_entry" method. + 2016-06-24 John Baldwin * auxv.c (fprint_auxv_entry): New function. diff --git a/gdb/fbsd-tdep.c b/gdb/fbsd-tdep.c index 7310ea09208..e8f860538e4 100644 --- a/gdb/fbsd-tdep.c +++ b/gdb/fbsd-tdep.c @@ -18,6 +18,7 @@ along with this program. If not, see . */ #include "defs.h" +#include "auxv.h" #include "gdbcore.h" #include "inferior.h" #include "regcache.h" @@ -283,6 +284,39 @@ fbsd_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size) return note_data; } +/* Print descriptions of FreeBSD-specific AUXV entries to FILE. */ + +static void +fbsd_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, + CORE_ADDR type, CORE_ADDR val) +{ + const char *name; + const char *description; + enum auxv_format format; + + switch (type) + { +#define _TAGNAME(tag) #tag +#define TAGNAME(tag) _TAGNAME(AT_##tag) +#define TAG(tag, text, kind) \ + case AT_FREEBSD_##tag: name = TAGNAME(tag); description = text; format = kind; break + TAG (EXECPATH, _("Executable path"), AUXV_FORMAT_STR); + TAG (CANARY, _("Canary for SSP"), AUXV_FORMAT_HEX); + TAG (CANARYLEN, ("Length of the SSP canary"), AUXV_FORMAT_DEC); + TAG (OSRELDATE, _("OSRELDATE"), AUXV_FORMAT_DEC); + TAG (NCPUS, _("Number of CPUs"), AUXV_FORMAT_DEC); + TAG (PAGESIZES, _("Pagesizes"), AUXV_FORMAT_HEX); + TAG (PAGESIZESLEN, _("Number of pagesizes"), AUXV_FORMAT_DEC); + TAG (TIMEKEEP, _("Pointer to timehands"), AUXV_FORMAT_HEX); + TAG (STACKPROT, _("Initial stack protection"), AUXV_FORMAT_HEX); + default: + default_print_auxv_entry (gdbarch, file, type, val); + return; + } + + fprint_auxv_entry (file, name, description, format, type, val); +} + /* To be called from GDB_OSABI_FREEBSD_ELF handlers. */ void @@ -291,4 +325,5 @@ fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_core_pid_to_str (gdbarch, fbsd_core_pid_to_str); set_gdbarch_core_thread_name (gdbarch, fbsd_core_thread_name); set_gdbarch_make_corefile_notes (gdbarch, fbsd_make_corefile_notes); + set_gdbarch_print_auxv_entry (gdbarch, fbsd_print_auxv_entry); } -- 2.30.2