[PATCH 1/8] gdb: Add ax_pseudo_register_collect for powerpc.

Marcin Kościelnicki
2016-03-06T16:35:07Z

gdb/ChangeLog:

* rs6000-tdep.c (rs6000_ax_pseudo_register_collect): New function.
(rs6000_gdbarch_init): Wire in the above.
---
gdb/ChangeLog | 5 +++++
gdb/rs6000-tdep.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 51 insertions(+)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b84326c..f0b6112 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+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.
+
2016-03-05 Pitchumani Sivanupandi <pitchumani.s@atmel.com>

* avr-tdep.c (AVR_LAST_ARG_REGNUM): Define.
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index c2b6638..3bcd205 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -2919,6 +2919,50 @@ rs6000_pseudo_register_write (struct gdbarch *gdbarch,
gdbarch_register_name (gdbarch, reg_nr), reg_nr);
}

+static int
+rs6000_ax_pseudo_register_collect (struct gdbarch *gdbarch,
+ struct agent_expr *ax, int reg_nr)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ if (IS_SPE_PSEUDOREG (tdep, reg_nr))
+ {
+ int reg_index = reg_nr - tdep->ppc_ev0_regnum;
+ ax_reg_mask (ax, tdep->ppc_gp0_regnum + reg_index);
+ ax_reg_mask (ax, tdep->ppc_ev0_upper_regnum + reg_index);
+ }
+ else if (IS_DFP_PSEUDOREG (tdep, reg_nr))
+ {
+ int reg_index = reg_nr - tdep->ppc_dl0_regnum;
+ ax_reg_mask (ax, tdep->ppc_fp0_regnum + 2 * reg_index);
+ ax_reg_mask (ax, tdep->ppc_fp0_regnum + 2 * reg_index + 1);
+ }
+ else if (IS_VSX_PSEUDOREG (tdep, reg_nr))
+ {
+ int reg_index = reg_nr - tdep->ppc_vsr0_regnum;
+ if (reg_index > 31)
+ {
+ ax_reg_mask (ax, tdep->ppc_vr0_regnum + reg_index - 32);
+ }
+ else
+ {
+ ax_reg_mask (ax, tdep->ppc_fp0_regnum + reg_index);
+ ax_reg_mask (ax, tdep->ppc_vsr0_upper_regnum + reg_index);
+ }
+ }
+ else if (IS_EFP_PSEUDOREG (tdep, reg_nr))
+ {
+ int reg_index = reg_nr - tdep->ppc_efpr0_regnum;
+ ax_reg_mask (ax, tdep->ppc_vr0_regnum + reg_index);
+ }
+ else
+ internal_error (__FILE__, __LINE__,
+ _("rs6000_pseudo_register_collect: "
+ "called on unexpected register '%s' (%d)"),
+ gdbarch_register_name (gdbarch, reg_nr), reg_nr);
+ return 0;
+}
+
+
/* Convert a DBX STABS register number to a GDB register number. */
static int
rs6000_stab_reg_to_regnum (struct gdbarch *gdbarch, int num)
@@ -5924,6 +5968,8 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_pseudo_register_read (gdbarch, rs6000_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch,
rs6000_pseudo_register_write);
+ set_gdbarch_ax_pseudo_register_collect (gdbarch,
+ rs6000_ax_pseudo_register_collect);
}

set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1);
--
2.7.2