mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
269 lines
7.2 KiB
C
269 lines
7.2 KiB
C
/* Native-dependent code for Solaris x86.
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Copyright (C) 1988-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "regcache.h"
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#include <sys/reg.h>
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#include <sys/procfs.h>
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#include "gregset.h"
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#include "target.h"
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#include "procfs.h"
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/* This file provids the (temporary) glue between the Solaris x86
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target dependent code and the machine independent SVR4 /proc
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support. */
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/* Solaris 10 (Solaris 2.10, SunOS 5.10) and up support two process
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data models, the traditional 32-bit data model (ILP32) and the
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64-bit data model (LP64). The format of /proc depends on the data
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model of the observer (the controlling process, GDB in our case).
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The Solaris header files conveniently define PR_MODEL_NATIVE to the
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data model of the controlling process. If its value is
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PR_MODEL_LP64, we know that GDB is being compiled as a 64-bit
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program.
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Note that a 32-bit GDB won't be able to debug a 64-bit target
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process using /proc on Solaris. */
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#if PR_MODEL_NATIVE == PR_MODEL_LP64
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#include "amd64-nat.h"
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#include "amd64-tdep.h"
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/* Mapping between the general-purpose registers in gregset_t format
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and GDB's register cache layout. */
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/* From <sys/regset.h>. */
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static int amd64_sol2_gregset64_reg_offset[] = {
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14 * 8, /* %rax */
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11 * 8, /* %rbx */
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13 * 8, /* %rcx */
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12 * 8, /* %rdx */
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9 * 8, /* %rsi */
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8 * 8, /* %rdi */
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10 * 8, /* %rbp */
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20 * 8, /* %rsp */
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7 * 8, /* %r8 ... */
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6 * 8,
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5 * 8,
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4 * 8,
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3 * 8,
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2 * 8,
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1 * 8,
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0 * 8, /* ... %r15 */
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17 * 8, /* %rip */
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19 * 8, /* %eflags */
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18 * 8, /* %cs */
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21 * 8, /* %ss */
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25 * 8, /* %ds */
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24 * 8, /* %es */
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22 * 8, /* %fs */
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23 * 8 /* %gs */
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};
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/* 32-bit registers are provided by Solaris in 64-bit format, so just
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give a subset of the list above. */
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static int amd64_sol2_gregset32_reg_offset[] = {
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14 * 8, /* %eax */
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13 * 8, /* %ecx */
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12 * 8, /* %edx */
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11 * 8, /* %ebx */
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20 * 8, /* %esp */
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10 * 8, /* %ebp */
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9 * 8, /* %esi */
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8 * 8, /* %edi */
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17 * 8, /* %eip */
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19 * 8, /* %eflags */
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18 * 8, /* %cs */
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21 * 8, /* %ss */
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25 * 8, /* %ds */
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24 * 8, /* %es */
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22 * 8, /* %fs */
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23 * 8 /* %gs */
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};
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void
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supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
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{
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amd64_supply_native_gregset (regcache, gregs, -1);
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}
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void
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supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
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{
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amd64_supply_fxsave (regcache, -1, fpregs);
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}
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void
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fill_gregset (const struct regcache *regcache,
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prgregset_t *gregs, int regnum)
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{
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amd64_collect_native_gregset (regcache, gregs, regnum);
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}
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void
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fill_fpregset (const struct regcache *regcache,
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prfpregset_t *fpregs, int regnum)
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{
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amd64_collect_fxsave (regcache, regnum, fpregs);
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}
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#else /* PR_MODEL_NATIVE != PR_MODEL_LP64 */
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#include "i386-tdep.h"
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#include "i387-tdep.h"
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/* The `/proc' interface divides the target machine's register set up
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into two different sets, the general purpose register set (gregset)
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and the floating-point register set (fpregset).
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The actual structure is, of course, naturally machine dependent, and is
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different for each set of registers. For the i386 for example, the
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general-purpose register set is typically defined by:
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typedef int gregset_t[19]; (in <sys/regset.h>)
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#define GS 0 (in <sys/reg.h>)
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#define FS 1
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...
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#define UESP 17
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#define SS 18
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and the floating-point set by:
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typedef struct fpregset {
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union {
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struct fpchip_state // fp extension state //
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{
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int state[27]; // 287/387 saved state //
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int status; // status word saved at //
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// exception //
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} fpchip_state;
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struct fp_emul_space // for emulators //
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{
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char fp_emul[246];
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char fp_epad[2];
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} fp_emul_space;
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int f_fpregs[62]; // union of the above //
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} fp_reg_set;
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long f_wregs[33]; // saved weitek state //
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} fpregset_t;
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Incidentally fpchip_state contains the FPU state in the same format
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as used by the "fsave" instruction, and that's the only thing we
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support here. I don't know how the emulator stores it state. The
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Weitek stuff definitely isn't supported.
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The routines defined here, provide the packing and unpacking of
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gregset_t and fpregset_t formatted data. */
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/* Mapping between the general-purpose registers in `/proc'
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format and GDB's register array layout. */
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static int regmap[] =
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{
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11 /* EAX */,
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10 /* ECX */,
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9 /* EDX */,
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8 /* EBX */,
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17 /* UESP */,
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6 /* EBP */,
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5 /* ESI */,
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4 /* EDI */,
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14 /* EIP */,
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16 /* EFL */,
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15 /* CS */,
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18 /* SS */,
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3 /* DS */,
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2 /* ES */,
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1 /* FS */,
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0 /* GS */
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};
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/* Fill GDB's register array with the general-purpose register values
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in *GREGSETP. */
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void
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supply_gregset (struct regcache *regcache, const gregset_t *gregsetp)
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{
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const greg_t *regp = (const greg_t *) gregsetp;
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int regnum;
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for (regnum = 0; regnum < I386_NUM_GREGS; regnum++)
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regcache->raw_supply (regnum, regp + regmap[regnum]);
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}
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/* Fill register REGNUM (if it is a general-purpose register) in
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*GREGSETPS with the value in GDB's register array. If REGNUM is -1,
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do this for all registers. */
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void
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fill_gregset (const struct regcache *regcache,
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gregset_t *gregsetp, int regnum)
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{
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greg_t *regp = (greg_t *) gregsetp;
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int i;
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for (i = 0; i < I386_NUM_GREGS; i++)
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if (regnum == -1 || regnum == i)
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regcache->raw_collect (i, regp + regmap[i]);
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}
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/* Fill GDB's register array with the floating-point register values in
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*FPREGSETP. */
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void
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supply_fpregset (struct regcache *regcache, const fpregset_t *fpregsetp)
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{
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if (gdbarch_fp0_regnum (regcache->arch ()) == 0)
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return;
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i387_supply_fsave (regcache, -1, fpregsetp);
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}
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/* Fill register REGNO (if it is a floating-point register) in
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*FPREGSETP with the value in GDB's register array. If REGNO is -1,
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do this for all registers. */
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void
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fill_fpregset (const struct regcache *regcache,
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fpregset_t *fpregsetp, int regno)
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{
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if (gdbarch_fp0_regnum (regcache->arch ()) == 0)
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return;
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i387_collect_fsave (regcache, regno, fpregsetp);
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}
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#endif
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void _initialize_amd64_sol2_nat ();
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void
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_initialize_amd64_sol2_nat ()
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{
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#if PR_MODEL_NATIVE == PR_MODEL_LP64
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amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;
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amd64_native_gregset32_num_regs =
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ARRAY_SIZE (amd64_sol2_gregset32_reg_offset);
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amd64_native_gregset64_reg_offset = amd64_sol2_gregset64_reg_offset;
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amd64_native_gregset64_num_regs =
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ARRAY_SIZE (amd64_sol2_gregset64_reg_offset);
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#endif
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}
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