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author | Jiri Smid <smid@suse.cz> | 2001-09-21 12:15:15 +0000 |
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committer | Jiri Smid <smid@suse.cz> | 2001-09-21 12:15:15 +0000 |
commit | 9a82579f3d1ba4b133844af18ec0a7fb0074dad9 (patch) | |
tree | 700f2679f5d745f2d041ae8a06b040eca39c18e2 /gdb/i386-tdep.h | |
parent | cab16195fe675de9872ec3e68b367f39a1d19555 (diff) | |
download | gdb-9a82579f3d1ba4b133844af18ec0a7fb0074dad9.zip gdb-9a82579f3d1ba4b133844af18ec0a7fb0074dad9.tar.gz gdb-9a82579f3d1ba4b133844af18ec0a7fb0074dad9.tar.bz2 |
* i386-tdep.h: New file.
* i387-nat.c: Include i386-tdep.h when multiarch.
* i387-tdep.c: Ditto.
Diffstat (limited to 'gdb/i386-tdep.h')
-rw-r--r-- | gdb/i386-tdep.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h new file mode 100644 index 0000000..16c245c --- /dev/null +++ b/gdb/i386-tdep.h @@ -0,0 +1,73 @@ +/* Target-dependent code for GDB, the GNU debugger. + Copyright 2001 + Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef I386_TDEP_H +#define I386_TDEP_H + +#define FPU_REG_RAW_SIZE 10 + +#define XMM0_REGNUM FIRST_XMM_REGNUM +#define FIRST_FPU_REGNUM FP0_REGNUM +#define LAST_FPU_REGNUM (gdbarch_tdep (current_gdbarch)->last_fpu_regnum) +#define FIRST_XMM_REGNUM (gdbarch_tdep (current_gdbarch)->first_xmm_regnum) +#define LAST_XMM_REGNUM (gdbarch_tdep (current_gdbarch)->last_xmm_regnum) +#define MXCSR_REGNUM (gdbarch_tdep (current_gdbarch)->mxcsr_regnum) +#define FIRST_FPU_CTRL_REGNUM (gdbarch_tdep (current_gdbarch)->first_fpu_ctrl_regnum) +#define LAST_FPU_CTRL_REGNUM (FIRST_FPU_CTRL_REGNUM + 7) + +/* All of these control registers (except for FCOFF and FDOFF) are + sixteen bits long (at most) in the FPU, but are zero-extended to + thirty-two bits in GDB's register file. This makes it easier to + compute the size of the control register file, and somewhat easier + to convert to and from the FSAVE instruction's 32-bit format. */ +/* FPU control word. */ +#define FCTRL_REGNUM (FIRST_FPU_CTRL_REGNUM) +/* FPU status word. */ +#define FSTAT_REGNUM (FIRST_FPU_CTRL_REGNUM + 1) +/* FPU register tag word. */ +#define FTAG_REGNUM (FIRST_FPU_CTRL_REGNUM + 2) +/* FPU instruction's code segment selector 16 bits, called "FPU Instruction + Pointer Selector" in the x86 manuals. */ +#define FCS_REGNUM (FIRST_FPU_CTRL_REGNUM + 3) +/* FPU instruction's offset within segment ("Fpu Code OFFset"). */ +#define FCOFF_REGNUM (FIRST_FPU_CTRL_REGNUM + 4) +/* FPU operand's data segment. */ +#define FDS_REGNUM (FIRST_FPU_CTRL_REGNUM + 5) +/* FPU operand's offset within segment. */ +#define FDOFF_REGNUM (FIRST_FPU_CTRL_REGNUM + 6) +/* FPU opcode, bottom eleven bits. */ +#define FOP_REGNUM (FIRST_FPU_CTRL_REGNUM + 7) + +/* i386 architecture specific information. */ +struct gdbarch_tdep +{ + int last_fpu_regnum; + int first_xmm_regnum; + int last_xmm_regnum; + int mxcsr_regnum; /* Streaming SIMD Extension control/status. */ + int first_fpu_ctrl_regnum; +}; + +#define IS_FP_REGNUM(n) (FIRST_FPU_REGNUM <= (n) && (n) <= LAST_FPU_REGNUM) +#define IS_FPU_CTRL_REGNUM(n) (FIRST_FPU_CTRL_REGNUM <= (n) && (n) <= LAST_FPU_CTRL_REGNUM) +#define IS_SSE_REGNUM(n) (FIRST_XMM_REGNUM <= (n) && (n) <= LAST_XMM_REGNUM) + +#endif |