/* GNU/Linux on ARM target support.
- Copyright (C) 1999-2016 Free Software Foundation, Inc.
+ Copyright (C) 1999-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "value.h"
#include "gdbtypes.h"
-#include "floatformat.h"
#include "gdbcore.h"
#include "frame.h"
#include "regcache.h"
-#include "doublest.h"
#include "solib-svr4.h"
#include "osabi.h"
#include "regset.h"
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
struct regcache *regcache,
int regnum, const void *gregs_buf, size_t len)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
const gdb_byte *gregs = (const gdb_byte *) gregs_buf;
int regno;
for (regno = ARM_A1_REGNUM; regno < ARM_PC_REGNUM; regno++)
if (regnum == -1 || regnum == regno)
- regcache_raw_supply (regcache, regno,
- gregs + INT_REGISTER_SIZE * regno);
+ regcache->raw_supply (regno, gregs + INT_REGISTER_SIZE * regno);
if (regnum == ARM_PS_REGNUM || regnum == -1)
{
if (arm_apcs_32)
- regcache_raw_supply (regcache, ARM_PS_REGNUM,
- gregs + INT_REGISTER_SIZE * ARM_CPSR_GREGNUM);
+ regcache->raw_supply (ARM_PS_REGNUM,
+ gregs + INT_REGISTER_SIZE * ARM_CPSR_GREGNUM);
else
- regcache_raw_supply (regcache, ARM_PS_REGNUM,
+ regcache->raw_supply (ARM_PS_REGNUM,
gregs + INT_REGISTER_SIZE * ARM_PC_REGNUM);
}
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);
- regcache_raw_supply (regcache, ARM_PC_REGNUM, pc_buf);
+ 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 (regcache, regno,
+ regcache->raw_collect (regno,
gregs + INT_REGISTER_SIZE * regno);
if (regnum == ARM_PS_REGNUM || regnum == -1)
{
if (arm_apcs_32)
- regcache_raw_collect (regcache, ARM_PS_REGNUM,
+ regcache->raw_collect (ARM_PS_REGNUM,
gregs + INT_REGISTER_SIZE * ARM_CPSR_GREGNUM);
else
- regcache_raw_collect (regcache, ARM_PS_REGNUM,
+ regcache->raw_collect (ARM_PS_REGNUM,
gregs + INT_REGISTER_SIZE * ARM_PC_REGNUM);
}
if (regnum == ARM_PC_REGNUM || regnum == -1)
- regcache_raw_collect (regcache, ARM_PC_REGNUM,
- gregs + INT_REGISTER_SIZE * ARM_PC_REGNUM);
+ regcache->raw_collect (ARM_PC_REGNUM,
+ gregs + INT_REGISTER_SIZE * ARM_PC_REGNUM);
}
/* Support for register format used by the NWFPE FPA emulator. */
break;
}
- regcache_raw_supply (regcache, regno, buf);
+ regcache->raw_supply (regno, buf);
}
void
gdb_byte reg_tag;
gdb_byte buf[FP_REGISTER_SIZE];
- regcache_raw_collect (regcache, regno, buf);
+ regcache->raw_collect (regno, buf);
/* NOTE drow/2006-06-07: This code uses the tag already in the
register buffer. I've preserved that when moving the code
int regno;
if (regnum == ARM_FPS_REGNUM || regnum == -1)
- regcache_raw_supply (regcache, ARM_FPS_REGNUM,
+ regcache->raw_supply (ARM_FPS_REGNUM,
regs + NWFPE_FPSR_OFFSET);
for (regno = ARM_F0_REGNUM; regno <= ARM_F7_REGNUM; regno++)
collect_nwfpe_register (regcache, regno, regs);
if (regnum == ARM_FPS_REGNUM || regnum == -1)
- regcache_raw_collect (regcache, ARM_FPS_REGNUM,
- regs + INT_REGISTER_SIZE * ARM_FPS_REGNUM);
+ regcache->raw_collect (ARM_FPS_REGNUM,
+ regs + INT_REGISTER_SIZE * ARM_FPS_REGNUM);
}
/* Support VFP register format. */
int regno;
if (regnum == ARM_FPSCR_REGNUM || regnum == -1)
- regcache_raw_supply (regcache, ARM_FPSCR_REGNUM, regs + 32 * 8);
+ regcache->raw_supply (ARM_FPSCR_REGNUM, regs + 32 * 8);
for (regno = ARM_D0_REGNUM; regno <= ARM_D31_REGNUM; regno++)
if (regnum == -1 || regnum == regno)
- regcache_raw_supply (regcache, regno,
- regs + (regno - ARM_D0_REGNUM) * 8);
+ regcache->raw_supply (regno, regs + (regno - ARM_D0_REGNUM) * 8);
}
static void
int regno;
if (regnum == ARM_FPSCR_REGNUM || regnum == -1)
- regcache_raw_collect (regcache, ARM_FPSCR_REGNUM, regs + 32 * 8);
+ regcache->raw_collect (ARM_FPSCR_REGNUM, regs + 32 * 8);
for (regno = ARM_D0_REGNUM; regno <= ARM_D31_REGNUM; regno++)
if (regnum == -1 || regnum == regno)
- regcache_raw_collect (regcache, regno,
- regs + (regno - ARM_D0_REGNUM) * 8);
+ regcache->raw_collect (regno, regs + (regno - ARM_D0_REGNUM) * 8);
}
static const struct regset arm_linux_gregset =
{
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)
{
ULONGEST sp;
unsigned long sp_data;
CORE_ADDR next_pc = 0;
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int pc_offset = 0;
int is_sigreturn = 0;
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;
}
else
{
- struct gdbarch *gdbarch = get_regcache_arch (self->regcache);
+ struct gdbarch *gdbarch = self->regcache->arch ();
enum bfd_endian byte_order_for_code =
gdbarch_byte_order_for_code (gdbarch);
unsigned long this_instr =
/* Insert a single step breakpoint at the next executed instruction. */
-static int
-arm_linux_software_single_step (struct frame_info *frame)
+static std::vector<CORE_ADDR>
+arm_linux_software_single_step (struct regcache *regcache)
{
- struct regcache *regcache = get_current_regcache ();
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
- struct address_space *aspace = get_regcache_aspace (regcache);
+ struct gdbarch *gdbarch = regcache->arch ();
struct arm_get_next_pcs next_pcs_ctx;
- CORE_ADDR pc;
- int i;
- VEC (CORE_ADDR) *next_pcs = NULL;
- struct cleanup *old_chain;
/* If the target does have hardware single step, GDB doesn't have
to bother software single step. */
if (target_can_do_single_step () == 1)
- return 0;
-
- old_chain = make_cleanup (VEC_cleanup (CORE_ADDR), &next_pcs);
+ return {};
arm_get_next_pcs_ctor (&next_pcs_ctx,
&arm_linux_get_next_pcs_ops,
1,
regcache);
- next_pcs = arm_get_next_pcs (&next_pcs_ctx);
-
- for (i = 0; VEC_iterate (CORE_ADDR, next_pcs, i, pc); i++)
- {
- pc = gdbarch_addr_bits_remove (gdbarch, pc);
- VEC_replace (CORE_ADDR, next_pcs, i, pc);
- }
-
- for (i = 0; VEC_iterate (CORE_ADDR, next_pcs, i, pc); i++)
- insert_single_step_breakpoint (gdbarch, aspace, pc);
+ std::vector<CORE_ADDR> next_pcs = arm_get_next_pcs (&next_pcs_ctx);
- do_cleanups (old_chain);
+ for (CORE_ADDR &pc_ref : next_pcs)
+ pc_ref = gdbarch_addr_bits_remove (gdbarch, pc_ref);
- return 1;
+ return next_pcs;
}
/* Support for displaced stepping of Linux SVC instructions. */
static void
arm_linux_cleanup_svc (struct gdbarch *gdbarch,
struct regcache *regs,
- struct displaced_step_closure *dsc)
+ arm_displaced_step_closure *dsc)
{
ULONGEST apparent_pc;
int within_scratch;
static int
arm_linux_copy_svc (struct gdbarch *gdbarch, struct regcache *regs,
- struct displaced_step_closure *dsc)
+ arm_displaced_step_closure *dsc)
{
CORE_ADDR return_to = 0;
{
inferior_thread ()->control.step_resume_breakpoint
= set_momentary_breakpoint (gdbarch, sal, get_frame_id (frame),
- bp_step_resume);
+ bp_step_resume).release ();
/* set_momentary_breakpoint invalidates FRAME. */
frame = NULL;
static void
cleanup_kernel_helper_return (struct gdbarch *gdbarch,
struct regcache *regs,
- struct displaced_step_closure *dsc)
+ arm_displaced_step_closure *dsc)
{
displaced_write_reg (regs, dsc, ARM_LR_REGNUM, dsc->tmp[0], CANNOT_WRITE_PC);
displaced_write_reg (regs, dsc, ARM_PC_REGNUM, dsc->tmp[0], BRANCH_WRITE_PC);
static void
arm_catch_kernel_helper_return (struct gdbarch *gdbarch, CORE_ADDR from,
CORE_ADDR to, struct regcache *regs,
- struct displaced_step_closure *dsc)
+ arm_displaced_step_closure *dsc)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR from, CORE_ADDR to,
struct regcache *regs)
{
- struct displaced_step_closure *dsc = XNEW (struct displaced_step_closure);
+ arm_displaced_step_closure *dsc = new arm_displaced_step_closure;
/* Detect when we enter an (inaccessible by GDB) Linux kernel helper, and
stop at the return location. */
regname, p->saved_arg);
++tmp;
- tmp = skip_spaces_const (tmp);
+ tmp = skip_spaces (tmp);
if (*tmp == '#' || *tmp == '$')
++tmp;
return find_solib_trampoline_target (frame, pc);
}
+/* Implement the gcc_target_options gdbarch method. */
+
+static char *
+arm_linux_gcc_target_options (struct gdbarch *gdbarch)
+{
+ /* GCC doesn't know "-m32". */
+ return NULL;
+}
+
static void
arm_linux_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
set_gdbarch_displaced_step_copy_insn (gdbarch,
arm_linux_displaced_step_copy_insn);
set_gdbarch_displaced_step_fixup (gdbarch, arm_displaced_step_fixup);
- set_gdbarch_displaced_step_free_closure (gdbarch,
- simple_displaced_step_free_closure);
set_gdbarch_displaced_step_location (gdbarch, linux_displaced_step_location);
/* Reversible debugging, process record. */
arm_linux_record_tdep.arg5 = ARM_A1_REGNUM + 4;
arm_linux_record_tdep.arg6 = ARM_A1_REGNUM + 5;
arm_linux_record_tdep.arg7 = ARM_A1_REGNUM + 6;
-}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern initialize_file_ftype _initialize_arm_linux_tdep;
+ set_gdbarch_gcc_target_options (gdbarch, arm_linux_gcc_target_options);
+}
void
_initialize_arm_linux_tdep (void)
projects / deliverable / binutils-gdb.git / blobdiff