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author | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
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committer | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
commit | 071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch) | |
tree | 5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/i386v4-nat.c | |
parent | 1730ec6b1848f0f32154277f788fb29f88d8475b (diff) | |
download | gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.zip gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.gz gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.bz2 |
Initial creation of sourceware repository
Diffstat (limited to 'gdb/i386v4-nat.c')
-rw-r--r-- | gdb/i386v4-nat.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/gdb/i386v4-nat.c b/gdb/i386v4-nat.c deleted file mode 100644 index ea84c65..0000000 --- a/gdb/i386v4-nat.c +++ /dev/null @@ -1,172 +0,0 @@ -/* Native-dependent code for SVR4 Unix running on i386's, for GDB. - Copyright 1988, 1989, 1991, 1992, 1996, 1998 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. */ - -#include "defs.h" -#include "value.h" - -#ifdef HAVE_SYS_REG_H -#include <sys/reg.h> -#endif - - -#ifdef HAVE_SYS_PROCFS_H - -#include <sys/procfs.h> - -/* The /proc interface divides the target machine's register set up into - two different sets, the general register set (gregset) and the floating - point register set (fpregset). For each set, there is an ioctl to get - the current register set and another ioctl to set the current values. - - The actual structure passed through the ioctl interface is, of course, - naturally machine dependent, and is different for each set of registers. - For the i386 for example, the general register set is typically defined - by: - - typedef int gregset_t[19]; (in <sys/regset.h>) - - #define GS 0 (in <sys/reg.h>) - #define FS 1 - ... - #define UESP 17 - #define SS 18 - - and the floating point set by: - - typedef struct fpregset - { - union - { - struct fpchip_state // fp extension state // - { - int state[27]; // 287/387 saved state // - int status; // status word saved at exception // - } fpchip_state; - struct fp_emul_space // for emulators // - { - char fp_emul[246]; - char fp_epad[2]; - } fp_emul_space; - int f_fpregs[62]; // union of the above // - } fp_reg_set; - long f_wregs[33]; // saved weitek state // - } fpregset_t; - - These routines provide the packing and unpacking of gregset_t and - fpregset_t formatted data. - - */ - -#ifdef HAVE_GREGSET_T - -/* This is a duplicate of the table in i386-xdep.c. */ - -static int regmap[] = -{ - EAX, ECX, EDX, EBX, - UESP, EBP, ESI, EDI, - EIP, EFL, CS, SS, - DS, ES, FS, GS, -}; - -/* Prototypes for local functions */ - -void fill_gregset PARAMS ((gregset_t *, int)); - -void supply_gregset PARAMS ((gregset_t *)); - -void supply_fpregset PARAMS ((fpregset_t *)); - -void fill_fpregset PARAMS ((fpregset_t *, int)); - - -/* FIXME: These routine absolutely depends upon (NUM_REGS - NUM_FREGS) - being less than or equal to the number of registers that can be stored - in a gregset_t. Note that with the current scheme there will typically - be more registers actually stored in a gregset_t that what we know - about. This is bogus and should be fixed. */ - -/* Given a pointer to a general register set in /proc format (gregset_t *), - unpack the register contents and supply them as gdb's idea of the current - register values. */ - -void -supply_gregset (gregsetp) - gregset_t *gregsetp; -{ - register int regi; - register greg_t *regp = (greg_t *) gregsetp; - extern int regmap[]; - - for (regi = 0 ; regi < (NUM_REGS - NUM_FREGS) ; regi++) - { - supply_register (regi, (char *) (regp + regmap[regi])); - } -} - -void -fill_gregset (gregsetp, regno) - gregset_t *gregsetp; - int regno; -{ - int regi; - register greg_t *regp = (greg_t *) gregsetp; - extern char registers[]; - extern int regmap[]; - - for (regi = 0 ; regi < (NUM_REGS - NUM_FREGS) ; regi++) - { - if ((regno == -1) || (regno == regi)) - { - *(regp + regmap[regi]) = *(int *) ®isters[REGISTER_BYTE (regi)]; - } - } -} - -#endif /* HAVE_GREGSET_T */ - -#if defined (FP0_REGNUM) && defined (HAVE_FPREGSET_T) - -/* Given a pointer to a floating point register set in /proc format - (fpregset_t *), unpack the register contents and supply them as gdb's - idea of the current floating point register values. */ - -void -supply_fpregset (fpregsetp) - fpregset_t *fpregsetp; -{ - /* FIXME: see m68k-tdep.c for an example, for the m68k. */ -} - -/* Given a pointer to a floating point register set in /proc format - (fpregset_t *), update the register specified by REGNO from gdb's idea - of the current floating point register set. If REGNO is -1, update - them all. */ - -void -fill_fpregset (fpregsetp, regno) - fpregset_t *fpregsetp; - int regno; -{ - /* FIXME: see m68k-tdep.c for an example, for the m68k. */ -} - -#endif /* defined (FP0_REGNUM) && defined (HAVE_FPREGSET_T) */ - -#endif /* HAVE_SYS_PROCFS_H */ |