diff options
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/alpha-tdep.c | 38 |
2 files changed, 42 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index e71e2a2..6ad3267 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2003-06-01 Richard Henderson <rth@redhat.com> + + * alpha-tdep.c (alpha_register_reggroup_p): New. + (alpha_gdbarch_init): Register it. + 2003-06-02 Andrew Cagney <cagney@redhat.com> * dwarfread.c: Eliminate "register" diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c index bc4daa2..53c9f63 100644 --- a/gdb/alpha-tdep.c +++ b/gdb/alpha-tdep.c @@ -20,6 +20,7 @@ Boston, MA 02111-1307, USA. */ #include "defs.h" +#include "doublest.h" #include "frame.h" #include "frame-unwind.h" #include "frame-base.h" @@ -34,7 +35,7 @@ #include "gdb_string.h" #include "linespec.h" #include "regcache.h" -#include "doublest.h" +#include "reggroups.h" #include "arch-utils.h" #include "osabi.h" #include "block.h" @@ -92,6 +93,39 @@ alpha_register_virtual_type (int regno) ? builtin_type_double : builtin_type_long); } +/* Is REGNUM a member of REGGROUP? */ + +static int +alpha_register_reggroup_p (struct gdbarch *gdbarch, int regnum, + struct reggroup *group) +{ + /* Filter out any registers eliminated, but whose regnum is + reserved for backward compatibility, e.g. the vfp. */ + if (REGISTER_NAME (regnum) == NULL || *REGISTER_NAME (regnum) == '\0') + return 0; + + /* Since we implement no pseudo registers, save/restore is equal to all. */ + if (group == all_reggroup + || group == save_reggroup + || group == restore_reggroup) + return 1; + + /* All other groups are non-overlapping. */ + + /* Since this is really a PALcode memory slot... */ + if (regnum == ALPHA_UNIQUE_REGNUM) + return group == system_reggroup; + + /* Force the FPCR to be considered part of the floating point state. */ + if (regnum == ALPHA_FPCR_REGNUM) + return group == float_reggroup; + + if (regnum >= ALPHA_FP0_REGNUM && regnum < ALPHA_FP0_REGNUM + 31) + return group == float_reggroup; + else + return group == general_reggroup; +} + static int alpha_register_byte (int regno) { @@ -1260,6 +1294,8 @@ alpha_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) alpha_register_convert_to_virtual); set_gdbarch_register_convert_to_raw (gdbarch, alpha_register_convert_to_raw); + set_gdbarch_register_reggroup_p (gdbarch, alpha_register_reggroup_p); + /* Prologue heuristics. */ set_gdbarch_skip_prologue (gdbarch, alpha_skip_prologue); |