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| author | Jiangshuai Li <jiangshuai_li@c-sky.com> | 2022-07-12 09:54:58 +0800 |
|---|---|---|
| committer | Jiangshuai Li <jiangshuai_li@c-sky.com> | 2022-07-12 09:54:58 +0800 |
| commit | d5ffc11fcbd43cb72e3ba55a52bb8df6374a8745 (patch) | |
| tree | 565b673cd509684ebf35b3920d6872c2d3d99530 | |
| parent | 242f3484dba6ae27a8fb6b673c37179fd42091e5 (diff) | |
| download | gdb-d5ffc11fcbd43cb72e3ba55a52bb8df6374a8745.zip gdb-d5ffc11fcbd43cb72e3ba55a52bb8df6374a8745.tar.gz gdb-d5ffc11fcbd43cb72e3ba55a52bb8df6374a8745.tar.bz2 | |
gdb/csky complete csky_dwarf_reg_to_regnum
For csky arch, the correspondence between Dwarf registers and GDB
registers are as follows:
dwarf regnos 0~31 ==> gdb regs r0~r31
dwarf regno CSKY_HI_REGNUM(36) ==> gdb reg hi
dwarf regno CSKY_LO_REGNUM(37) ==> gdb reg hi
dwarf regno CSKY_PC_REGNUM(72) ==> gdb reg pc
dwarf regnos FV_PSEUDO_REGNO_FIRST(74)~FV_PSEUDO_REGNO_LAST(201)
==>
gdb regs s0~s127 (pseudo regs for float and vector regs)
other dwarf regnos have no corresponding gdb regs to them.
| -rw-r--r-- | gdb/csky-tdep.c | 25 | ||||
| -rw-r--r-- | gdb/csky-tdep.h | 4 |
2 files changed, 26 insertions, 3 deletions
diff --git a/gdb/csky-tdep.c b/gdb/csky-tdep.c index b63ff7c..502b01e 100644 --- a/gdb/csky-tdep.c +++ b/gdb/csky-tdep.c @@ -2556,9 +2556,28 @@ csky_register_reggroup_p (struct gdbarch *gdbarch, int regnum, static int csky_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dw_reg) { - if (dw_reg < 0 || dw_reg >= CSKY_NUM_REGS) - return -1; - return dw_reg; + /* For GPRs. */ + if (dw_reg >= CSKY_R0_REGNUM && dw_reg <= (CSKY_R0_REGNUM + 31)) + return dw_reg; + + /* For Hi, Lo, PC. */ + if ((dw_reg == CSKY_HI_REGNUM) || (dw_reg == CSKY_LO_REGNUM) + || (dw_reg == CSKY_PC_REGNUM)) + return dw_reg; + + /* For Float and Vector pseudo registers. */ + if ((dw_reg >= FV_PSEUDO_REGNO_FIRST) && (dw_reg <= FV_PSEUDO_REGNO_LAST)) + { + char name_buf[4]; + + xsnprintf (name_buf, sizeof (name_buf), "s%d", + dw_reg - FV_PSEUDO_REGNO_FIRST); + return user_reg_map_name_to_regnum (gdbarch, name_buf, + strlen (name_buf)); + } + + /* Others, unknown. */ + return -1; } /* Override interface for command: info register. */ diff --git a/gdb/csky-tdep.h b/gdb/csky-tdep.h index 4ff8a6b..4cfc0a5 100644 --- a/gdb/csky-tdep.h +++ b/gdb/csky-tdep.h @@ -108,6 +108,10 @@ enum csky_regnum /* For fr0~fr15, fr16~fr31, vr0~vr15 check. */ #define CSKY_FULL16_ONEHOT_VALUE 0xffff +/* Define for CSKY FV pseudo regs for dwarf regs. */ +#define FV_PSEUDO_REGNO_FIRST 74 +#define FV_PSEUDO_REGNO_LAST 201 + /* Number of processor registers w/o ICE registers. */ #define CSKY_NUM_REGS (CSKY_MAX_REGS - CSKY_CRBANK_NUM_REGS) |