/* Native-dependent code for Solaris x86.
- Copyright 2004 Free Software Foundation, Inc.
+ Copyright (C) 1988-2020 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "regcache.h"
+#include <sys/reg.h>
#include <sys/procfs.h>
#include "gregset.h"
+#include "target.h"
+#include "procfs.h"
/* This file provids the (temporary) glue between the Solaris x86
target dependent code and the machine independent SVR4 /proc
Note that a 32-bit GDB won't be able to debug a 64-bit target
process using /proc on Solaris. */
-#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
+#if PR_MODEL_NATIVE == PR_MODEL_LP64
#include "amd64-nat.h"
#include "amd64-tdep.h"
+/* Mapping between the general-purpose registers in gregset_t format
+ and GDB's register cache layout. */
+
+/* From <sys/regset.h>. */
+static int amd64_sol2_gregset64_reg_offset[] = {
+ 14 * 8, /* %rax */
+ 11 * 8, /* %rbx */
+ 13 * 8, /* %rcx */
+ 12 * 8, /* %rdx */
+ 9 * 8, /* %rsi */
+ 8 * 8, /* %rdi */
+ 10 * 8, /* %rbp */
+ 20 * 8, /* %rsp */
+ 7 * 8, /* %r8 ... */
+ 6 * 8,
+ 5 * 8,
+ 4 * 8,
+ 3 * 8,
+ 2 * 8,
+ 1 * 8,
+ 0 * 8, /* ... %r15 */
+ 17 * 8, /* %rip */
+ 19 * 8, /* %eflags */
+ 18 * 8, /* %cs */
+ 21 * 8, /* %ss */
+ 25 * 8, /* %ds */
+ 24 * 8, /* %es */
+ 22 * 8, /* %fs */
+ 23 * 8 /* %gs */
+};
+
+/* 32-bit registers are provided by Solaris in 64-bit format, so just
+ give a subset of the list above. */
+static int amd64_sol2_gregset32_reg_offset[] = {
+ 14 * 8, /* %eax */
+ 13 * 8, /* %ecx */
+ 12 * 8, /* %edx */
+ 11 * 8, /* %ebx */
+ 20 * 8, /* %esp */
+ 10 * 8, /* %ebp */
+ 9 * 8, /* %esi */
+ 8 * 8, /* %edi */
+ 17 * 8, /* %eip */
+ 19 * 8, /* %eflags */
+ 18 * 8, /* %cs */
+ 21 * 8, /* %ss */
+ 25 * 8, /* %ds */
+ 24 * 8, /* %es */
+ 22 * 8, /* %fs */
+ 23 * 8 /* %gs */
+};
+
+void
+supply_gregset (struct regcache *regcache, const prgregset_t *gregs)
+{
+ amd64_supply_native_gregset (regcache, gregs, -1);
+}
+
+void
+supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)
+{
+ amd64_supply_fxsave (regcache, -1, fpregs);
+}
+
void
-supply_gregset (prgregset_t *gregs)
+fill_gregset (const struct regcache *regcache,
+ prgregset_t *gregs, int regnum)
{
- amd64_supply_native_gregset (current_regcache, -1, gregs);
+ amd64_collect_native_gregset (regcache, gregs, regnum);
}
void
-supply_fpregset (prfpregset_t *fpregs)
+fill_fpregset (const struct regcache *regcache,
+ prfpregset_t *fpregs, int regnum)
+{
+ amd64_collect_fxsave (regcache, regnum, fpregs);
+}
+
+#else /* PR_MODEL_NATIVE != PR_MODEL_LP64 */
+
+#include "i386-tdep.h"
+#include "i387-tdep.h"
+
+/* The `/proc' interface divides the target machine's register set up
+ into two different sets, the general purpose register set (gregset)
+ and the floating-point register set (fpregset).
+
+ The actual structure is, of course, naturally machine dependent, and is
+ different for each set of registers. For the i386 for example, the
+ general-purpose 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;
+
+ Incidentally fpchip_state contains the FPU state in the same format
+ as used by the "fsave" instruction, and that's the only thing we
+ support here. I don't know how the emulator stores it state. The
+ Weitek stuff definitely isn't supported.
+
+ The routines defined here, provide the packing and unpacking of
+ gregset_t and fpregset_t formatted data. */
+
+/* Mapping between the general-purpose registers in `/proc'
+ format and GDB's register array layout. */
+static int regmap[] =
+{
+ 11 /* EAX */,
+ 10 /* ECX */,
+ 9 /* EDX */,
+ 8 /* EBX */,
+ 17 /* UESP */,
+ 6 /* EBP */,
+ 5 /* ESI */,
+ 4 /* EDI */,
+ 14 /* EIP */,
+ 16 /* EFL */,
+ 15 /* CS */,
+ 18 /* SS */,
+ 3 /* DS */,
+ 2 /* ES */,
+ 1 /* FS */,
+ 0 /* GS */
+};
+
+/* Fill GDB's register array with the general-purpose register values
+ in *GREGSETP. */
+
+void
+supply_gregset (struct regcache *regcache, const gregset_t *gregsetp)
{
- amd64_supply_fxsave (current_regcache, -1, fpregs);
+ const greg_t *regp = (const greg_t *) gregsetp;
+ int regnum;
+
+ for (regnum = 0; regnum < I386_NUM_GREGS; regnum++)
+ regcache->raw_supply (regnum, regp + regmap[regnum]);
}
+/* Fill register REGNUM (if it is a general-purpose register) in
+ *GREGSETPS with the value in GDB's register array. If REGNUM is -1,
+ do this for all registers. */
+
void
-fill_gregset (prgregset_t *gregs, int regnum)
+fill_gregset (const struct regcache *regcache,
+ gregset_t *gregsetp, int regnum)
{
- amd64_collect_native_gregset (current_regcache, regnum, gregs);
+ greg_t *regp = (greg_t *) gregsetp;
+ int i;
+
+ for (i = 0; i < I386_NUM_GREGS; i++)
+ if (regnum == -1 || regnum == i)
+ regcache->raw_collect (i, regp + regmap[i]);
}
+/* Fill GDB's register array with the floating-point register values in
+ *FPREGSETP. */
+
void
-fill_fpregset (prfpregset_t *fpregs, int regnum)
+supply_fpregset (struct regcache *regcache, const fpregset_t *fpregsetp)
{
- amd64_collect_fxsave (current_regcache, regnum, fpregs);
+ if (gdbarch_fp0_regnum (regcache->arch ()) == 0)
+ return;
+
+ i387_supply_fsave (regcache, -1, fpregsetp);
}
-#else
+/* Fill register REGNO (if it is a floating-point register) in
+ *FPREGSETP with the value in GDB's register array. If REGNO is -1,
+ do this for all registers. */
+
+void
+fill_fpregset (const struct regcache *regcache,
+ fpregset_t *fpregsetp, int regno)
+{
+ if (gdbarch_fp0_regnum (regcache->arch ()) == 0)
+ return;
+
+ i387_collect_fsave (regcache, regno, fpregsetp);
+}
-/* 32-bit Solaris x86 is very similar to SVR4. */
-#include "i386v4-nat.c"
+#endif
+void _initialize_amd64_sol2_nat ();
+void
+_initialize_amd64_sol2_nat ()
+{
+#if PR_MODEL_NATIVE == PR_MODEL_LP64
+ amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;
+ amd64_native_gregset32_num_regs =
+ ARRAY_SIZE (amd64_sol2_gregset32_reg_offset);
+ amd64_native_gregset64_reg_offset = amd64_sol2_gregset64_reg_offset;
+ amd64_native_gregset64_num_regs =
+ ARRAY_SIZE (amd64_sol2_gregset64_reg_offset);
#endif
+}
projects / deliverable / binutils-gdb.git / blobdiff