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authorJohn Baldwin <jhb@FreeBSD.org>2016-06-15 21:33:42 -0700
committerJohn Baldwin <jhb@FreeBSD.org>2016-06-24 10:35:11 -0700
commit82372b2f2747d347e24bb10ddc7bc7e828222a42 (patch)
treebb9e543d028a821139fc8184489c6719b6757343
parent2faa34476d9e6120eaf389b7f91b7227183fa2ce (diff)
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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.
-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/fbsd-tdep.c35
2 files changed, 41 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c7c71d7..22234be 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
2016-06-24 John Baldwin <jhb@FreeBSD.org>
+ * 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 <jhb@FreeBSD.org>
+
* auxv.c (fprint_auxv_entry): New function.
(default_print_auxv_entry): New function.
(fprint_target_auxv): Use gdbarch_print_auxv_entry.
diff --git a/gdb/fbsd-tdep.c b/gdb/fbsd-tdep.c
index 7310ea0..e8f8605 100644
--- a/gdb/fbsd-tdep.c
+++ b/gdb/fbsd-tdep.c
@@ -18,6 +18,7 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#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);
}