[PATCH 2/8] gdb: Add gen_return_address for powerpc.

Marcin Kościelnicki
2016-03-06T16:35:06Z

gdb/ChangeLog:

* rs6000-tdep.c (rs6000_gen_return_address): New function.
(rs6000_gdbarch_init): Wire in the above.
---
gdb/ChangeLog | 5 +++++
gdb/rs6000-tdep.c | 17 +++++++++++++++++
2 files changed, 22 insertions(+)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f0b6112..c2ef019 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
2016-03-05 Marcin KoÅ›cielnicki <koriakin@0x04.net>

+ * rs6000-tdep.c (rs6000_gen_return_address): New function.
+ (rs6000_gdbarch_init): Wire in the above.
+
+2016-03-05 Marcin KoÅ›cielnicki <koriakin@0x04.net>
+
* rs6000-tdep.c (rs6000_ax_pseudo_register_collect): New function.
(rs6000_gdbarch_init): Wire in the above.

diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 3bcd205..565c620 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -63,6 +63,9 @@
#include "frame-unwind.h"
#include "frame-base.h"

+#include "ax.h"
+#include "ax-gdb.h"
+
#include "features/rs6000/powerpc-32.c"
#include "features/rs6000/powerpc-altivec32.c"
#include "features/rs6000/powerpc-vsx32.c"
@@ -2963,6 +2966,18 @@ rs6000_ax_pseudo_register_collect (struct gdbarch *gdbarch,
}

+static void
+rs6000_gen_return_address (struct gdbarch *gdbarch,
+ struct agent_expr *ax, struct axs_value *value,
+ CORE_ADDR scope)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ value->type = register_type (gdbarch, tdep->ppc_lr_regnum);
+ value->kind = axs_lvalue_register;
+ value->u.reg = tdep->ppc_lr_regnum;
+}
+
+
/* Convert a DBX STABS register number to a GDB register number. */
static int
rs6000_stab_reg_to_regnum (struct gdbarch *gdbarch, int num)
@@ -5972,6 +5987,8 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
rs6000_ax_pseudo_register_collect);
}

+ set_gdbarch_gen_return_address (gdbarch, rs6000_gen_return_address);
+
set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1);

/* Select instruction printer. */
--
2.7.2