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| author | Andrew Cagney <cagney@redhat.com> | 2004-10-30 22:36:34 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2004-10-30 22:36:34 +0000 |
| commit | 613e114ff9d8c0f2bbe5177ef94f702123bb8885 (patch) | |
| tree | 0430c3bc647f9b87f9b1b8867b9f74b36dfd8db1 /gdb/mips-tdep.h | |
| parent | d37cca3d684da261b7982e9b854d532048a355e2 (diff) | |
| download | binutils-gdb-613e114ff9d8c0f2bbe5177ef94f702123bb8885.tar.gz | |
2004-10-30 Andrew Cagney <cagney@gnu.org>
* mips-tdep.h: Add comments on registers.
(MIPS_UNUSED_REGNUM): Define.
* config/mips/tm-mips.h (ZERO_REGNUM, UNUSED_REGNUM)
(T9_REGNUM, V0_REGNUM, A0_REGNUM): Delete.
* irix5-nat.c, mipsv4-nat.c, mips-linux-tdep.c: Update.
* mips-linux-nat.c, remote-mips.c: Update.
Diffstat (limited to 'gdb/mips-tdep.h')
| -rw-r--r-- | gdb/mips-tdep.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/gdb/mips-tdep.h b/gdb/mips-tdep.h index 404ec7d76c7..9dac4c2946a 100644 --- a/gdb/mips-tdep.h +++ b/gdb/mips-tdep.h @@ -61,13 +61,20 @@ struct mips_regnum }; extern const struct mips_regnum *mips_regnum (struct gdbarch *gdbarch); +/* Register numbers of various important registers. Note that some of + these values are "real" register numbers, and correspond to the + general registers of the machine, and some are "phony" register + numbers which are too large to be actual register numbers as far as + the user is concerned but do serve to get the desired values when + passed to read_register. */ + enum { - MIPS_ZERO_REGNUM = 0, + MIPS_ZERO_REGNUM = 0, /* Read-only register, always 0. */ MIPS_AT_REGNUM = 1, - MIPS_V0_REGNUM = 2, - MIPS_A0_REGNUM = 4, - MIPS_T9_REGNUM = 25, + MIPS_V0_REGNUM = 2, /* Function integer return value. */ + MIPS_A0_REGNUM = 4, /* Loc of first arg during a subr call */ + MIPS_T9_REGNUM = 25, /* Contains address of callee in PIC. */ MIPS_SP_REGNUM = 29, MIPS_RA_REGNUM = 31, MIPS_EMBED_LO_REGNUM = 33, @@ -75,7 +82,8 @@ enum MIPS_EMBED_BADVADDR_REGNUM = 35, MIPS_EMBED_CAUSE_REGNUM = 36, MIPS_EMBED_PC_REGNUM = 37, - MIPS_EMBED_FP0_REGNUM = 38 + MIPS_EMBED_FP0_REGNUM = 38, + MIPS_UNUSED_REGNUM = 73 /* Never used, FIXME */ }; /* Defined in mips-tdep.c and used in remote-mips.c */ |