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mn10300-linux-tdep.c
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/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger.
Copyright (C) 2003-2015 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 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbcore.h"
#include "regcache.h"
#include "mn10300-tdep.h"
#include "bfd.h"
#include "elf-bfd.h"
#include "osabi.h"
#include "regset.h"
#include "solib-svr4.h"
#include "frame.h"
#include "trad-frame.h"
#include "tramp-frame.h"
#include "linux-tdep.h"
/* Transliterated from <asm-mn10300/elf.h>... */
#define MN10300_ELF_NGREG 28
#define MN10300_ELF_NFPREG 32
typedef gdb_byte mn10300_elf_greg_t[4];
typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG];
typedef gdb_byte mn10300_elf_fpreg_t[4];
typedef struct
{
mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG];
gdb_byte fpcr[4];
} mn10300_elf_fpregset_t;
/* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */
#define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0
#define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1
#define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2
#define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3
#define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4
#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5
#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6
#define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7
#define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8
#define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9
#define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10
#define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11
#define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12
#define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13
#define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14
#define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15
#define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16
#define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17
#define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18
#define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19
#define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20
#define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21
#define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22
#define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23
#define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24
#define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25
#define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26
/* New gdbarch API for corefile registers.
Given a section name and size, create a struct reg object
with a supply_register and a collect_register method. */
/* Copy register value of REGNUM from regset to regcache.
If REGNUM is -1, do this for all gp registers in regset. */
static void
am33_supply_gregset_method (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
char zerobuf[MAX_REGISTER_SIZE];
const mn10300_elf_greg_t *regp = (const mn10300_elf_greg_t *) gregs;
int i;
gdb_assert (len >= sizeof (mn10300_elf_gregset_t));
switch (regnum) {
case E_D0_REGNUM:
regcache_raw_supply (regcache, E_D0_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
break;
case E_D1_REGNUM:
regcache_raw_supply (regcache, E_D1_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
break;
case E_D2_REGNUM:
regcache_raw_supply (regcache, E_D2_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
break;
case E_D3_REGNUM:
regcache_raw_supply (regcache, E_D3_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
break;
case E_A0_REGNUM:
regcache_raw_supply (regcache, E_A0_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
break;
case E_A1_REGNUM:
regcache_raw_supply (regcache, E_A1_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
break;
case E_A2_REGNUM:
regcache_raw_supply (regcache, E_A2_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
break;
case E_A3_REGNUM:
regcache_raw_supply (regcache, E_A3_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
break;
case E_SP_REGNUM:
regcache_raw_supply (regcache, E_SP_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
break;
case E_PC_REGNUM:
regcache_raw_supply (regcache, E_PC_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
break;
case E_MDR_REGNUM:
regcache_raw_supply (regcache, E_MDR_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
break;
case E_PSW_REGNUM:
regcache_raw_supply (regcache, E_PSW_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
break;
case E_LIR_REGNUM:
regcache_raw_supply (regcache, E_LIR_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
break;
case E_LAR_REGNUM:
regcache_raw_supply (regcache, E_LAR_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
break;
case E_MDRQ_REGNUM:
regcache_raw_supply (regcache, E_MDRQ_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
break;
case E_E0_REGNUM:
regcache_raw_supply (regcache, E_E0_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
break;
case E_E1_REGNUM:
regcache_raw_supply (regcache, E_E1_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
break;
case E_E2_REGNUM:
regcache_raw_supply (regcache, E_E2_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
break;
case E_E3_REGNUM:
regcache_raw_supply (regcache, E_E3_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
break;
case E_E4_REGNUM:
regcache_raw_supply (regcache, E_E4_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
break;
case E_E5_REGNUM:
regcache_raw_supply (regcache, E_E5_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
break;
case E_E6_REGNUM:
regcache_raw_supply (regcache, E_E6_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
break;
case E_E7_REGNUM:
regcache_raw_supply (regcache, E_E7_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
break;
/* ssp, msp, and usp are inaccessible. */
case E_E8_REGNUM:
memset (zerobuf, 0, MAX_REGISTER_SIZE);
regcache_raw_supply (regcache, E_E8_REGNUM, zerobuf);
break;
case E_E9_REGNUM:
memset (zerobuf, 0, MAX_REGISTER_SIZE);
regcache_raw_supply (regcache, E_E9_REGNUM, zerobuf);
break;
case E_E10_REGNUM:
memset (zerobuf, 0, MAX_REGISTER_SIZE);
regcache_raw_supply (regcache, E_E10_REGNUM, zerobuf);
break;
case E_MCRH_REGNUM:
regcache_raw_supply (regcache, E_MCRH_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
break;
case E_MCRL_REGNUM:
regcache_raw_supply (regcache, E_MCRL_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
break;
case E_MCVF_REGNUM:
regcache_raw_supply (regcache, E_MCVF_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
break;
case E_FPCR_REGNUM:
/* FPCR is numbered among the GP regs, but handled as an FP reg.
Do nothing. */
break;
case E_FPCR_REGNUM + 1:
/* The two unused registers beyond fpcr are inaccessible. */
memset (zerobuf, 0, MAX_REGISTER_SIZE);
regcache_raw_supply (regcache, E_FPCR_REGNUM + 1, zerobuf);
break;
case E_FPCR_REGNUM + 2:
memset (zerobuf, 0, MAX_REGISTER_SIZE);
regcache_raw_supply (regcache, E_FPCR_REGNUM + 2, zerobuf);
break;
default: /* An error, obviously, but should we error out? */
break;
case -1:
for (i = 0; i < MN10300_ELF_NGREG; i++)
am33_supply_gregset_method (regset, regcache, i, gregs, len);
break;
}
return;
}
/* Copy fp register value of REGNUM from regset to regcache.
If REGNUM is -1, do this for all fp registers in regset. */
static void
am33_supply_fpregset_method (const struct regset *regset,
struct regcache *regcache,
int regnum, const void *fpregs, size_t len)
{
const mn10300_elf_fpregset_t *fpregset = fpregs;
gdb_assert (len >= sizeof (mn10300_elf_fpregset_t));
if (regnum == -1)
{
int i;
for (i = 0; i < MN10300_ELF_NFPREG; i++)
am33_supply_fpregset_method (regset, regcache,
E_FS0_REGNUM + i, fpregs, len);
am33_supply_fpregset_method (regset, regcache,
E_FPCR_REGNUM, fpregs, len);
}
else if (regnum == E_FPCR_REGNUM)
regcache_raw_supply (regcache, E_FPCR_REGNUM,
&fpregset->fpcr);
else if (E_FS0_REGNUM <= regnum
&& regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
regcache_raw_supply (regcache, regnum,
&fpregset->fpregs[regnum - E_FS0_REGNUM]);
return;
}
/* Copy register values from regcache to regset. */
static void
am33_collect_gregset_method (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *gregs, size_t len)
{
mn10300_elf_gregset_t *regp = gregs;
int i;
gdb_assert (len >= sizeof (mn10300_elf_gregset_t));
switch (regnum) {
case E_D0_REGNUM:
regcache_raw_collect (regcache, E_D0_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
break;
case E_D1_REGNUM:
regcache_raw_collect (regcache, E_D1_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
break;
case E_D2_REGNUM:
regcache_raw_collect (regcache, E_D2_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
break;
case E_D3_REGNUM:
regcache_raw_collect (regcache, E_D3_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
break;
case E_A0_REGNUM:
regcache_raw_collect (regcache, E_A0_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
break;
case E_A1_REGNUM:
regcache_raw_collect (regcache, E_A1_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
break;
case E_A2_REGNUM:
regcache_raw_collect (regcache, E_A2_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
break;
case E_A3_REGNUM:
regcache_raw_collect (regcache, E_A3_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
break;
case E_SP_REGNUM:
regcache_raw_collect (regcache, E_SP_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
break;
case E_PC_REGNUM:
regcache_raw_collect (regcache, E_PC_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
break;
case E_MDR_REGNUM:
regcache_raw_collect (regcache, E_MDR_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
break;
case E_PSW_REGNUM:
regcache_raw_collect (regcache, E_PSW_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
break;
case E_LIR_REGNUM:
regcache_raw_collect (regcache, E_LIR_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
break;
case E_LAR_REGNUM:
regcache_raw_collect (regcache, E_LAR_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
break;
case E_MDRQ_REGNUM:
regcache_raw_collect (regcache, E_MDRQ_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
break;
case E_E0_REGNUM:
regcache_raw_collect (regcache, E_E0_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
break;
case E_E1_REGNUM:
regcache_raw_collect (regcache, E_E1_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
break;
case E_E2_REGNUM:
regcache_raw_collect (regcache, E_E2_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
break;
case E_E3_REGNUM:
regcache_raw_collect (regcache, E_E3_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
break;
case E_E4_REGNUM:
regcache_raw_collect (regcache, E_E4_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
break;
case E_E5_REGNUM:
regcache_raw_collect (regcache, E_E5_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
break;
case E_E6_REGNUM:
regcache_raw_collect (regcache, E_E6_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
break;
case E_E7_REGNUM:
regcache_raw_collect (regcache, E_E7_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
break;
/* ssp, msp, and usp are inaccessible. */
case E_E8_REGNUM:
/* The gregset struct has noplace to put this: do nothing. */
break;
case E_E9_REGNUM:
/* The gregset struct has noplace to put this: do nothing. */
break;
case E_E10_REGNUM:
/* The gregset struct has noplace to put this: do nothing. */
break;
case E_MCRH_REGNUM:
regcache_raw_collect (regcache, E_MCRH_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
break;
case E_MCRL_REGNUM:
regcache_raw_collect (regcache, E_MCRL_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
break;
case E_MCVF_REGNUM:
regcache_raw_collect (regcache, E_MCVF_REGNUM,
(regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
break;
case E_FPCR_REGNUM:
/* FPCR is numbered among the GP regs, but handled as an FP reg.
Do nothing. */
break;
case E_FPCR_REGNUM + 1:
/* The gregset struct has noplace to put this: do nothing. */
break;
case E_FPCR_REGNUM + 2:
/* The gregset struct has noplace to put this: do nothing. */
break;
default: /* An error, obviously, but should we error out? */
break;
case -1:
for (i = 0; i < MN10300_ELF_NGREG; i++)
am33_collect_gregset_method (regset, regcache, i, gregs, len);
break;
}
return;
}
/* Copy fp register values from regcache to regset. */
static void
am33_collect_fpregset_method (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *fpregs, size_t len)
{
mn10300_elf_fpregset_t *fpregset = fpregs;
gdb_assert (len >= sizeof (mn10300_elf_fpregset_t));
if (regnum == -1)
{
int i;
for (i = 0; i < MN10300_ELF_NFPREG; i++)
am33_collect_fpregset_method (regset, regcache, E_FS0_REGNUM + i,
fpregs, len);
am33_collect_fpregset_method (regset, regcache,
E_FPCR_REGNUM, fpregs, len);
}
else if (regnum == E_FPCR_REGNUM)
regcache_raw_collect (regcache, E_FPCR_REGNUM,
&fpregset->fpcr);
else if (E_FS0_REGNUM <= regnum
&& regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
regcache_raw_collect (regcache, regnum,
&fpregset->fpregs[regnum - E_FS0_REGNUM]);
return;
}
static const struct regset am33_gregset =
{
NULL, am33_supply_gregset_method, am33_collect_gregset_method
};
static const struct regset am33_fpregset =
{
NULL, am33_supply_fpregset_method, am33_collect_fpregset_method
};
/* Iterate over core file register note sections. */
static void
am33_iterate_over_regset_sections (struct gdbarch *gdbarch,
iterate_over_regset_sections_cb *cb,
void *cb_data,
const struct regcache *regcache)
{
cb (".reg", sizeof (mn10300_elf_gregset_t), &am33_gregset,
NULL, cb_data);
cb (".reg2", sizeof(mn10300_elf_fpregset_t), &am33_fpregset,
NULL, cb_data);
}
static void
am33_linux_sigframe_cache_init (const struct tramp_frame *self,
struct frame_info *this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func);
static const struct tramp_frame am33_linux_sigframe = {
SIGTRAMP_FRAME,
1,
{
/* mov 119,d0 */
{ 0x2c, -1 },
{ 0x77, -1 },
{ 0x00, -1 },
/* syscall 0 */
{ 0xf0, -1 },
{ 0xe0, -1 },
{ TRAMP_SENTINEL_INSN, -1 }
},
am33_linux_sigframe_cache_init
};
static const struct tramp_frame am33_linux_rt_sigframe = {
SIGTRAMP_FRAME,
1,
{
/* mov 173,d0 */
{ 0x2c, -1 },
{ 0xad, -1 },
{ 0x00, -1 },
/* syscall 0 */
{ 0xf0, -1 },
{ 0xe0, -1 },
{ TRAMP_SENTINEL_INSN, -1 }
},
am33_linux_sigframe_cache_init
};
/* Relevant struct definitions for signal handling...
From arch/mn10300/kernel/sigframe.h:
struct sigframe
{
void (*pretcode)(void);
int sig;
struct sigcontext *psc;
struct sigcontext sc;
struct fpucontext fpuctx;
unsigned long extramask[_NSIG_WORDS-1];
char retcode[8];
};
struct rt_sigframe
{
void (*pretcode)(void);
int sig;
struct siginfo *pinfo;
void *puc;
struct siginfo info;
struct ucontext uc;
struct fpucontext fpuctx;
char retcode[8];
};
From include/asm-mn10300/ucontext.h:
struct ucontext {
unsigned long uc_flags;
struct ucontext *uc_link;
stack_t uc_stack;
struct sigcontext uc_mcontext;
sigset_t uc_sigmask;
};
From include/asm-mn10300/sigcontext.h:
struct fpucontext {
unsigned long fs[32];
unsigned long fpcr;
};
struct sigcontext {
unsigned long d0;
unsigned long d1;
unsigned long d2;
unsigned long d3;
unsigned long a0;
unsigned long a1;
unsigned long a2;
unsigned long a3;
unsigned long e0;
unsigned long e1;
unsigned long e2;
unsigned long e3;
unsigned long e4;
unsigned long e5;
unsigned long e6;
unsigned long e7;
unsigned long lar;
unsigned long lir;
unsigned long mdr;
unsigned long mcvf;
unsigned long mcrl;
unsigned long mcrh;
unsigned long mdrq;
unsigned long sp;
unsigned long epsw;
unsigned long pc;
struct fpucontext *fpucontext;
unsigned long oldmask;
}; */
#define AM33_SIGCONTEXT_D0 0
#define AM33_SIGCONTEXT_D1 4
#define AM33_SIGCONTEXT_D2 8
#define AM33_SIGCONTEXT_D3 12
#define AM33_SIGCONTEXT_A0 16
#define AM33_SIGCONTEXT_A1 20
#define AM33_SIGCONTEXT_A2 24
#define AM33_SIGCONTEXT_A3 28
#define AM33_SIGCONTEXT_E0 32
#define AM33_SIGCONTEXT_E1 36
#define AM33_SIGCONTEXT_E2 40
#define AM33_SIGCONTEXT_E3 44
#define AM33_SIGCONTEXT_E4 48
#define AM33_SIGCONTEXT_E5 52
#define AM33_SIGCONTEXT_E6 56
#define AM33_SIGCONTEXT_E7 60
#define AM33_SIGCONTEXT_LAR 64
#define AM33_SIGCONTEXT_LIR 68
#define AM33_SIGCONTEXT_MDR 72
#define AM33_SIGCONTEXT_MCVF 76
#define AM33_SIGCONTEXT_MCRL 80
#define AM33_SIGCONTEXT_MCRH 84
#define AM33_SIGCONTEXT_MDRQ 88
#define AM33_SIGCONTEXT_SP 92
#define AM33_SIGCONTEXT_EPSW 96
#define AM33_SIGCONTEXT_PC 100
#define AM33_SIGCONTEXT_FPUCONTEXT 104
static void
am33_linux_sigframe_cache_init (const struct tramp_frame *self,
struct frame_info *this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
CORE_ADDR sc_base, fpubase;
int i;
sc_base = get_frame_register_unsigned (this_frame, E_SP_REGNUM);
if (self == &am33_linux_sigframe)
{
sc_base += 8;
sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4);
}
else
{
sc_base += 12;
sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4);
sc_base += 20;
}
trad_frame_set_reg_addr (this_cache, E_D0_REGNUM,
sc_base + AM33_SIGCONTEXT_D0);
trad_frame_set_reg_addr (this_cache, E_D1_REGNUM,
sc_base + AM33_SIGCONTEXT_D1);
trad_frame_set_reg_addr (this_cache, E_D2_REGNUM,
sc_base + AM33_SIGCONTEXT_D2);
trad_frame_set_reg_addr (this_cache, E_D3_REGNUM,
sc_base + AM33_SIGCONTEXT_D3);
trad_frame_set_reg_addr (this_cache, E_A0_REGNUM,
sc_base + AM33_SIGCONTEXT_A0);
trad_frame_set_reg_addr (this_cache, E_A1_REGNUM,
sc_base + AM33_SIGCONTEXT_A1);
trad_frame_set_reg_addr (this_cache, E_A2_REGNUM,
sc_base + AM33_SIGCONTEXT_A2);
trad_frame_set_reg_addr (this_cache, E_A3_REGNUM,
sc_base + AM33_SIGCONTEXT_A3);
trad_frame_set_reg_addr (this_cache, E_E0_REGNUM,
sc_base + AM33_SIGCONTEXT_E0);
trad_frame_set_reg_addr (this_cache, E_E1_REGNUM,
sc_base + AM33_SIGCONTEXT_E1);
trad_frame_set_reg_addr (this_cache, E_E2_REGNUM,
sc_base + AM33_SIGCONTEXT_E2);
trad_frame_set_reg_addr (this_cache, E_E3_REGNUM,
sc_base + AM33_SIGCONTEXT_E3);
trad_frame_set_reg_addr (this_cache, E_E4_REGNUM,
sc_base + AM33_SIGCONTEXT_E4);
trad_frame_set_reg_addr (this_cache, E_E5_REGNUM,
sc_base + AM33_SIGCONTEXT_E5);
trad_frame_set_reg_addr (this_cache, E_E6_REGNUM,
sc_base + AM33_SIGCONTEXT_E6);
trad_frame_set_reg_addr (this_cache, E_E7_REGNUM,
sc_base + AM33_SIGCONTEXT_E7);
trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM,
sc_base + AM33_SIGCONTEXT_LAR);
trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM,
sc_base + AM33_SIGCONTEXT_LIR);
trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM,
sc_base + AM33_SIGCONTEXT_MDR);
trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM,
sc_base + AM33_SIGCONTEXT_MCVF);
trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM,
sc_base + AM33_SIGCONTEXT_MCRL);
trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM,
sc_base + AM33_SIGCONTEXT_MDRQ);
trad_frame_set_reg_addr (this_cache, E_SP_REGNUM,
sc_base + AM33_SIGCONTEXT_SP);
trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM,
sc_base + AM33_SIGCONTEXT_EPSW);
trad_frame_set_reg_addr (this_cache, E_PC_REGNUM,
sc_base + AM33_SIGCONTEXT_PC);
fpubase = get_frame_memory_unsigned (this_frame,
sc_base + AM33_SIGCONTEXT_FPUCONTEXT,
4);
if (fpubase)
{
for (i = 0; i < 32; i++)
{
trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i,
fpubase + 4 * i);
}
trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32);
}
trad_frame_set_id (this_cache, frame_id_build (sc_base, func));
}
/* AM33 GNU/Linux osabi has been recognized.
Now's our chance to register our corefile handling. */
static void
am33_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
linux_init_abi (info, gdbarch);
set_gdbarch_iterate_over_regset_sections
(gdbarch, am33_iterate_over_regset_sections);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe);
tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_mn10300_linux_tdep;
void
_initialize_mn10300_linux_tdep (void)
{
gdbarch_register_osabi (bfd_arch_mn10300, 0,
GDB_OSABI_LINUX, am33_linux_init_osabi);
}