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authorAndrew Cagney <cagney@redhat.com>2005-01-26 21:53:06 +0000
committerAndrew Cagney <cagney@redhat.com>2005-01-26 21:53:06 +0000
commitc44ca51c0b3ebab53b749299118af13fd2b890e5 (patch)
tree929c4c9e5e317111776b0f18e63d6557bf49e49e
parentc600d464c08b048bd0fad661d16e7e1440a2a7ba (diff)
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2005-01-26 Andrew Cagney <cagney@gnu.org>
* rs6000-tdep.c: Include "reggroups.h". (rs6000_gdbarch_init): Set register_reggroup_p. (rs6000_register_reggroup_p): New function.
-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/rs6000-tdep.c55
2 files changed, 61 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 358745c..afc88da 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2005-01-26 Andrew Cagney <cagney@gnu.org>
+
+ * rs6000-tdep.c: Include "reggroups.h".
+ (rs6000_gdbarch_init): Set register_reggroup_p.
+ (rs6000_register_reggroup_p): New function.
+
2005-01-26 Orjan Friberg <orjanf@axis.com>
* cris-tdep.c (enum cris_num_regs, enum cris_regnums)
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 96ee67d..5c46615 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -59,6 +59,8 @@
#include "frame-unwind.h"
#include "frame-base.h"
+#include "reggroups.h"
+
/* If the kernel has to deliver a signal, it pushes a sigcontext
structure on the stack and then calls the signal handler, passing
the address of the sigcontext in an argument register. Usually
@@ -1861,6 +1863,58 @@ rs6000_register_type (struct gdbarch *gdbarch, int n)
}
}
+/* Is REGNUM a member of REGGROUP? */
+static int
+rs6000_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
+ struct reggroup *group)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ int float_p;
+ int vector_p;
+ int general_p;
+
+ if (REGISTER_NAME (regnum) == NULL
+ || *REGISTER_NAME (regnum) == '\0')
+ return 0;
+ if (group == all_reggroup)
+ return 1;
+
+ float_p = (regnum == tdep->ppc_fpscr_regnum
+ || (regnum >= tdep->ppc_fp0_regnum
+ && regnum < tdep->ppc_fp0_regnum + 32));
+ if (group == float_reggroup)
+ return float_p;
+
+ vector_p = ((regnum >= tdep->ppc_vr0_regnum
+ && regnum < tdep->ppc_vr0_regnum + 32)
+ || (regnum >= tdep->ppc_ev0_regnum
+ && regnum < tdep->ppc_ev0_regnum + 32)
+ || regnum == tdep->ppc_vrsave_regnum
+ || regnum == tdep->ppc_acc_regnum
+ || regnum == tdep->ppc_spefscr_regnum);
+ if (group == vector_reggroup)
+ return vector_p;
+
+ /* Note that PS aka MSR isn't included - it's a system register (and
+ besides, due to GCC's CFI foobar you do not want to restore
+ it). */
+ general_p = ((regnum >= tdep->ppc_gp0_regnum
+ && regnum < tdep->ppc_gp0_regnum + 32)
+ || regnum == tdep->ppc_toc_regnum
+ || regnum == tdep->ppc_cr_regnum
+ || regnum == tdep->ppc_lr_regnum
+ || regnum == tdep->ppc_ctr_regnum
+ || regnum == tdep->ppc_xer_regnum
+ || regnum == PC_REGNUM);
+ if (group == general_reggroup)
+ return general_p;
+
+ if (group == save_reggroup || group == restore_reggroup)
+ return general_p || vector_p || float_p;
+
+ return 0;
+}
+
/* The register format for RS/6000 floating point registers is always
double, we need a conversion if the memory format is float. */
@@ -3218,6 +3272,7 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_num_pseudo_regs (gdbarch, v->npregs);
set_gdbarch_register_name (gdbarch, rs6000_register_name);
set_gdbarch_register_type (gdbarch, rs6000_register_type);
+ set_gdbarch_register_reggroup_p (gdbarch, rs6000_register_reggroup_p);
set_gdbarch_ptr_bit (gdbarch, wordsize * TARGET_CHAR_BIT);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);