/* GNU/Linux on ARM target support.
- Copyright (C) 1999-2018 Free Software Foundation, Inc.
+ Copyright (C) 1999-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "auxv.h"
#include "xml-syscall.h"
+#include "aarch32-tdep.h"
#include "arch/arm.h"
#include "arch/arm-get-next-pcs.h"
#include "arch/arm-linux.h"
#include "user-regs.h"
#include <ctype.h>
#include "elf/common.h"
-extern int arm_apcs_32;
/* Under ARM GNU/Linux the traditional way of performing a breakpoint
is to execute a particular software interrupt, rather than use a
SoftVFP or VFP (which implies EABI) then the PC is at offset 9 in the
buffer. This is also true for the SoftFPA model. However, for the FPA
model the PC is at offset 21 in the buffer. */
-#define ARM_LINUX_JB_ELEMENT_SIZE INT_REGISTER_SIZE
+#define ARM_LINUX_JB_ELEMENT_SIZE ARM_INT_REGISTER_SIZE
#define ARM_LINUX_JB_PC_FPA 21
#define ARM_LINUX_JB_PC_EABI 9
SIGTRAMP_FRAME,
4,
{
- { ARM_LINUX_SIGRETURN_INSTR, -1 },
+ { ARM_LINUX_SIGRETURN_INSTR, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_sigreturn_init
SIGTRAMP_FRAME,
4,
{
- { ARM_LINUX_RT_SIGRETURN_INSTR, -1 },
+ { ARM_LINUX_RT_SIGRETURN_INSTR, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_rt_sigreturn_init
SIGTRAMP_FRAME,
4,
{
- { ARM_SET_R7_SIGRETURN, -1 },
- { ARM_EABI_SYSCALL, -1 },
+ { ARM_SET_R7_SIGRETURN, ULONGEST_MAX },
+ { ARM_EABI_SYSCALL, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_sigreturn_init
SIGTRAMP_FRAME,
4,
{
- { ARM_SET_R7_RT_SIGRETURN, -1 },
- { ARM_EABI_SYSCALL, -1 },
+ { ARM_SET_R7_RT_SIGRETURN, ULONGEST_MAX },
+ { ARM_EABI_SYSCALL, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_rt_sigreturn_init
SIGTRAMP_FRAME,
2,
{
- { THUMB2_SET_R7_SIGRETURN1, -1 },
- { THUMB2_SET_R7_SIGRETURN2, -1 },
- { THUMB2_EABI_SYSCALL, -1 },
+ { THUMB2_SET_R7_SIGRETURN1, ULONGEST_MAX },
+ { THUMB2_SET_R7_SIGRETURN2, ULONGEST_MAX },
+ { THUMB2_EABI_SYSCALL, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_sigreturn_init
SIGTRAMP_FRAME,
2,
{
- { THUMB2_SET_R7_RT_SIGRETURN1, -1 },
- { THUMB2_SET_R7_RT_SIGRETURN2, -1 },
- { THUMB2_EABI_SYSCALL, -1 },
+ { THUMB2_SET_R7_RT_SIGRETURN1, ULONGEST_MAX },
+ { THUMB2_SET_R7_RT_SIGRETURN2, ULONGEST_MAX },
+ { THUMB2_EABI_SYSCALL, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_rt_sigreturn_init
NORMAL_FRAME,
4,
{
- { ARM_OABI_SYSCALL_RESTART_SYSCALL, -1 },
- { ARM_LDR_PC_SP_12, -1 },
+ { ARM_OABI_SYSCALL_RESTART_SYSCALL, ULONGEST_MAX },
+ { ARM_LDR_PC_SP_12, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_restart_syscall_init
NORMAL_FRAME,
4,
{
- { ARM_OABI_SYSCALL_RESTART_SYSCALL, -1 },
- { ARM_LDR_PC_SP_4, -1 },
+ { ARM_OABI_SYSCALL_RESTART_SYSCALL, ULONGEST_MAX },
+ { ARM_LDR_PC_SP_4, ULONGEST_MAX },
{ TRAMP_SENTINEL_INSN }
},
arm_linux_restart_syscall_init
/* Core file and register set support. */
-#define ARM_LINUX_SIZEOF_GREGSET (18 * INT_REGISTER_SIZE)
+#define ARM_LINUX_SIZEOF_GREGSET (18 * ARM_INT_REGISTER_SIZE)
void
arm_linux_supply_gregset (const struct regset *regset,
const gdb_byte *gregs = (const gdb_byte *) gregs_buf;
int regno;
CORE_ADDR reg_pc;
- gdb_byte pc_buf[INT_REGISTER_SIZE];
+ gdb_byte pc_buf[ARM_INT_REGISTER_SIZE];
for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
if (regnum == -1 || regnum == regno)
- regcache->raw_supply (regno, gregs + INT_REGISTER_SIZE * regno);
+ regcache->raw_supply (regno, gregs + ARM_INT_REGISTER_SIZE * regno);
if (regnum == ARM_PS_REGNUM || regnum == -1)
{
if (arm_apcs_32)
regcache->raw_supply (ARM_PS_REGNUM,
- gregs + INT_REGISTER_SIZE * ARM_CPSR_GREGNUM);
+ gregs + ARM_INT_REGISTER_SIZE * ARM_CPSR_GREGNUM);
else
regcache->raw_supply (ARM_PS_REGNUM,
- gregs + INT_REGISTER_SIZE * ARM_PC_REGNUM);
+ gregs + ARM_INT_REGISTER_SIZE * ARM_PC_REGNUM);
}
if (regnum == ARM_PC_REGNUM || regnum == -1)
{
- reg_pc = extract_unsigned_integer (gregs
- + INT_REGISTER_SIZE * ARM_PC_REGNUM,
- INT_REGISTER_SIZE, byte_order);
+ reg_pc = extract_unsigned_integer (
+ gregs + ARM_INT_REGISTER_SIZE * ARM_PC_REGNUM,
+ ARM_INT_REGISTER_SIZE, byte_order);
reg_pc = gdbarch_addr_bits_remove (gdbarch, reg_pc);
- store_unsigned_integer (pc_buf, INT_REGISTER_SIZE, byte_order, reg_pc);
+ store_unsigned_integer (pc_buf, ARM_INT_REGISTER_SIZE, byte_order,
+ reg_pc);
regcache->raw_supply (ARM_PC_REGNUM, pc_buf);
}
}
for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
if (regnum == -1 || regnum == regno)
regcache->raw_collect (regno,
- gregs + INT_REGISTER_SIZE * regno);
+ gregs + ARM_INT_REGISTER_SIZE * regno);
if (regnum == ARM_PS_REGNUM || regnum == -1)
{
if (arm_apcs_32)
regcache->raw_collect (ARM_PS_REGNUM,
- gregs + INT_REGISTER_SIZE * ARM_CPSR_GREGNUM);
+ gregs + ARM_INT_REGISTER_SIZE * ARM_CPSR_GREGNUM);
else
regcache->raw_collect (ARM_PS_REGNUM,
- gregs + INT_REGISTER_SIZE * ARM_PC_REGNUM);
+ gregs + ARM_INT_REGISTER_SIZE * ARM_PC_REGNUM);
}
if (regnum == ARM_PC_REGNUM || regnum == -1)
regcache->raw_collect (ARM_PC_REGNUM,
- gregs + INT_REGISTER_SIZE * ARM_PC_REGNUM);
+ gregs + ARM_INT_REGISTER_SIZE * ARM_PC_REGNUM);
}
/* Support for register format used by the NWFPE FPA emulator. */
{
const gdb_byte *reg_data;
gdb_byte reg_tag;
- gdb_byte buf[FP_REGISTER_SIZE];
+ gdb_byte buf[ARM_FP_REGISTER_SIZE];
- reg_data = regs + (regno - ARM_F0_REGNUM) * FP_REGISTER_SIZE;
+ reg_data = regs + (regno - ARM_F0_REGNUM) * ARM_FP_REGISTER_SIZE;
reg_tag = regs[(regno - ARM_F0_REGNUM) + NWFPE_TAGS_OFFSET];
- memset (buf, 0, FP_REGISTER_SIZE);
+ memset (buf, 0, ARM_FP_REGISTER_SIZE);
switch (reg_tag)
{
{
gdb_byte *reg_data;
gdb_byte reg_tag;
- gdb_byte buf[FP_REGISTER_SIZE];
+ gdb_byte buf[ARM_FP_REGISTER_SIZE];
regcache->raw_collect (regno, buf);
from the native file to the target file. But this doesn't
always make sense. */
- reg_data = regs + (regno - ARM_F0_REGNUM) * FP_REGISTER_SIZE;
+ reg_data = regs + (regno - ARM_F0_REGNUM) * ARM_FP_REGISTER_SIZE;
reg_tag = regs[(regno - ARM_F0_REGNUM) + NWFPE_TAGS_OFFSET];
switch (reg_tag)
if (regnum == ARM_FPS_REGNUM || regnum == -1)
regcache->raw_collect (ARM_FPS_REGNUM,
- regs + INT_REGISTER_SIZE * ARM_FPS_REGNUM);
+ regs + ARM_INT_REGISTER_SIZE * ARM_FPS_REGNUM);
}
/* Support VFP register format. */
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- cb (".reg", ARM_LINUX_SIZEOF_GREGSET, &arm_linux_gregset, NULL, cb_data);
+ cb (".reg", ARM_LINUX_SIZEOF_GREGSET, ARM_LINUX_SIZEOF_GREGSET,
+ &arm_linux_gregset, NULL, cb_data);
if (tdep->vfp_register_count > 0)
- cb (".reg-arm-vfp", ARM_LINUX_SIZEOF_VFP, &arm_linux_vfpregset,
- "VFP floating-point", cb_data);
+ cb (".reg-arm-vfp", ARM_LINUX_SIZEOF_VFP, ARM_LINUX_SIZEOF_VFP,
+ &arm_linux_vfpregset, "VFP floating-point", cb_data);
else if (tdep->have_fpa_registers)
- cb (".reg2", ARM_LINUX_SIZEOF_NWFPE, &arm_linux_fpregset,
- "FPA floating-point", cb_data);
+ cb (".reg2", ARM_LINUX_SIZEOF_NWFPE, ARM_LINUX_SIZEOF_NWFPE,
+ &arm_linux_fpregset, "FPA floating-point", cb_data);
}
/* Determine target description from core file. */
struct target_ops *target,
bfd *abfd)
{
- CORE_ADDR arm_hwcap = 0;
-
- if (target_auxv_search (target, AT_HWCAP, &arm_hwcap) != 1)
- return NULL;
+ CORE_ADDR arm_hwcap = linux_get_hwcap (target);
if (arm_hwcap & HWCAP_VFP)
{
/* NEON implies VFPv3-D32 or no-VFP unit. Say that we only support
Neon with VFPv3-D32. */
if (arm_hwcap & HWCAP_NEON)
- return tdesc_arm_with_neon;
+ return aarch32_read_description ();
else if ((arm_hwcap & (HWCAP_VFPv3 | HWCAP_VFPv3D16)) == HWCAP_VFPv3)
- return tdesc_arm_with_vfpv3;
- else
- return tdesc_arm_with_vfpv2;
+ return arm_read_description (ARM_FP_TYPE_VFPV3);
+
+ return arm_read_description (ARM_FP_TYPE_VFPV2);
}
- return NULL;
+ return nullptr;
}
static LONGEST
arm_linux_get_syscall_number (struct gdbarch *gdbarch,
- ptid_t ptid)
+ thread_info *thread)
{
- struct regcache *regs = get_thread_regcache (ptid);
+ struct regcache *regs = get_thread_regcache (thread);
ULONGEST pc;
ULONGEST cpsr;
within_scratch = (apparent_pc >= dsc->scratch_base
&& apparent_pc < (dsc->scratch_base
- + DISPLACED_MODIFIED_INSNS * 4 + 4));
+ + ARM_DISPLACED_MODIFIED_INSNS * 4 + 4));
if (debug_displaced)
{
/* Implement the gcc_target_options gdbarch method. */
-static char *
+static std::string
arm_linux_gcc_target_options (struct gdbarch *gdbarch)
{
/* GCC doesn't know "-m32". */
- return NULL;
+ return {};
}
static void
projects / deliverable / binutils-gdb.git / blobdiff