diff options
Diffstat (limited to 'gdb/mt-tdep.c')
| -rw-r--r-- | gdb/mt-tdep.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/gdb/mt-tdep.c b/gdb/mt-tdep.c index f67ddfa..9b0971f 100644 --- a/gdb/mt-tdep.c +++ b/gdb/mt-tdep.c @@ -524,9 +524,9 @@ mt_select_coprocessor (struct gdbarch *gdbarch, Additionally there is an array of coprocessor registers which track the coprocessor registers for each coprocessor. */ -static void +static enum register_status mt_pseudo_register_read (struct gdbarch *gdbarch, - struct regcache *regcache, int regno, gdb_byte *buf) + struct regcache *regcache, int regno, gdb_byte *buf) { enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); @@ -534,34 +534,45 @@ mt_pseudo_register_read (struct gdbarch *gdbarch, { case MT_COPRO_REGNUM: case MT_COPRO_PSEUDOREG_REGNUM: - regcache_raw_read (regcache, MT_COPRO_REGNUM, buf); - break; + return regcache_raw_read (regcache, MT_COPRO_REGNUM, buf); case MT_MAC_REGNUM: case MT_MAC_PSEUDOREG_REGNUM: if (gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_mrisc2 || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_ms2) { + enum register_status status; ULONGEST oldmac = 0, ext_mac = 0; ULONGEST newmac; - regcache_cooked_read_unsigned (regcache, MT_MAC_REGNUM, &oldmac); + status = regcache_cooked_read_unsigned (regcache, MT_MAC_REGNUM, &oldmac); + if (status != REG_VALID) + return status; + regcache_cooked_read_unsigned (regcache, MT_EXMAC_REGNUM, &ext_mac); + if (status != REG_VALID) + return status; + newmac = (oldmac & 0xffffffff) | ((long long) (ext_mac & 0xff) << 32); store_signed_integer (buf, 8, byte_order, newmac); + + return REG_VALID; } else - regcache_raw_read (regcache, MT_MAC_REGNUM, buf); + return regcache_raw_read (regcache, MT_MAC_REGNUM, buf); break; default: { unsigned index = mt_select_coprocessor (gdbarch, regcache, regno); if (index == MT_COPRO_PSEUDOREG_MAC_REGNUM) - mt_pseudo_register_read (gdbarch, regcache, - MT_MAC_PSEUDOREG_REGNUM, buf); + return mt_pseudo_register_read (gdbarch, regcache, + MT_MAC_PSEUDOREG_REGNUM, buf); else if (index < MT_NUM_REGS - MT_CPR0_REGNUM) - regcache_raw_read (regcache, index + MT_CPR0_REGNUM, buf); + return regcache_raw_read (regcache, index + MT_CPR0_REGNUM, buf); + else + /* ??? */ + return REG_VALID; } break; } |