diff options
Diffstat (limited to 'gdb/i387-tdep.h')
| -rw-r--r-- | gdb/i387-tdep.h | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/gdb/i387-tdep.h b/gdb/i387-tdep.h index 654b4a5..41e695b 100644 --- a/gdb/i387-tdep.h +++ b/gdb/i387-tdep.h @@ -27,6 +27,27 @@ struct ui_file; struct frame_info; struct type; +/* Because the number of general-purpose registers is different for + AMD64, the floating-point registers and SSE registers get shifted. + The following definitions are intended to help writing code that + needs the register numbers of floating-point registers and SSE + registers. In order to use these, one should provide a definition + for I387_ST0_REGNUM, and possibly I387_NUM_XMM_REGS, preferably by + using a local "#define" in the body of the function that uses this. + Please "#undef" them before the end of the function. */ + +#define I387_FCTRL_REGNUM (I387_ST0_REGNUM + 8) +#define I387_FSTAT_REGNUM (I387_FCTRL_REGNUM + 1) +#define I387_FTAG_REGNUM (I387_FCTRL_REGNUM + 2) +#define I387_FISEG_REGNUM (I387_FCTRL_REGNUM + 3) +#define I387_FIOFF_REGNUM (I387_FCTRL_REGNUM + 4) +#define I387_FOSEG_REGNUM (I387_FCTRL_REGNUM + 5) +#define I387_FOOFF_REGNUM (I387_FCTRL_REGNUM + 6) +#define I387_FOP_REGNUM (I387_FCTRL_REGNUM + 7) +#define I387_XMM0_REGNUM (I387_ST0_REGNUM + 16) +#define I387_MXCSR_REGNUM (I387_XMM0_REGNUM + I387_NUM_XMM_REGS) + + /* Print out the i387 floating point state. */ extern void i387_print_float_info (struct gdbarch *gdbarch, @@ -56,26 +77,26 @@ extern void i387_value_to_register (struct frame_info *frame, int regnum, value from *FSAVE. This function masks off any of the reserved bits in *FSAVE. */ -extern void i387_supply_fsave (const char *fsave, int regnum); +extern void i387_supply_fsave (const void *fsave, int regnum); /* Fill register REGNUM (if it is a floating-point register) in *FSAVE with the value in GDB's register cache. If REGNUM is -1, do this for all registers. This function doesn't touch any of the reserved bits in *FSAVE. */ -extern void i387_fill_fsave (char *fsave, int regnum); +extern void i387_fill_fsave (void *fsave, int regnum); /* Fill register REGNUM in GDB's register cache with the appropriate floating-point or SSE register value from *FXSAVE. This function masks off any of the reserved bits in *FXSAVE. */ -extern void i387_supply_fxsave (const char *fxsave, int regnum); +extern void i387_supply_fxsave (const void *fxsave, int regnum); /* Fill register REGNUM (if it is a floating-point or SSE register) in *FXSAVE with the value in GDB's register cache. If REGNUM is -1, do this for all registers. This function doesn't touch any of the reserved bits in *FXSAVE. */ -extern void i387_fill_fxsave (char *fxsave, int regnum); +extern void i387_fill_fxsave (void *fxsave, int regnum); #endif /* i387-tdep.h */ |