diff options
Diffstat (limited to 'gdb/mep-tdep.c')
| -rw-r--r-- | gdb/mep-tdep.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/gdb/mep-tdep.c b/gdb/mep-tdep.c index b8759bc..dd5a4a5 100644 --- a/gdb/mep-tdep.c +++ b/gdb/mep-tdep.c @@ -1133,12 +1133,13 @@ mep_write_pc (struct regcache *regcache, CORE_ADDR pc) } -static void +static enum register_status mep_pseudo_cr32_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, void *buf) { + enum register_status status; enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); /* Read the raw register into a 64-bit buffer, and then return the appropriate end of that buffer. */ @@ -1147,24 +1148,28 @@ mep_pseudo_cr32_read (struct gdbarch *gdbarch, gdb_assert (TYPE_LENGTH (register_type (gdbarch, rawnum)) == sizeof (buf64)); gdb_assert (TYPE_LENGTH (register_type (gdbarch, cookednum)) == 4); - regcache_raw_read (regcache, rawnum, buf64); - /* Slow, but legible. */ - store_unsigned_integer (buf, 4, byte_order, - extract_unsigned_integer (buf64, 8, byte_order)); + status = regcache_raw_read (regcache, rawnum, buf64); + if (status == REG_VALID) + { + /* Slow, but legible. */ + store_unsigned_integer (buf, 4, byte_order, + extract_unsigned_integer (buf64, 8, byte_order)); + } + return status; } -static void +static enum register_status mep_pseudo_cr64_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, void *buf) { - regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf); + return regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf); } -static void +static enum register_status mep_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, @@ -1172,13 +1177,13 @@ mep_pseudo_register_read (struct gdbarch *gdbarch, { if (IS_CSR_REGNUM (cookednum) || IS_CCR_REGNUM (cookednum)) - regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf); + return regcache_raw_read (regcache, mep_pseudo_to_raw[cookednum], buf); else if (IS_CR32_REGNUM (cookednum) || IS_FP_CR32_REGNUM (cookednum)) - mep_pseudo_cr32_read (gdbarch, regcache, cookednum, buf); + return mep_pseudo_cr32_read (gdbarch, regcache, cookednum, buf); else if (IS_CR64_REGNUM (cookednum) || IS_FP_CR64_REGNUM (cookednum)) - mep_pseudo_cr64_read (gdbarch, regcache, cookednum, buf); + return mep_pseudo_cr64_read (gdbarch, regcache, cookednum, buf); else gdb_assert_not_reached ("unexpected pseudo register"); } |