/* Target-machine dependent code for Nios II, for GDB.
- Copyright (C) 2012-2016 Free Software Foundation, Inc.
+ Copyright (C) 2012-2017 Free Software Foundation, Inc.
Contributed by Peter Brookes (pbrookes@altera.com)
and Andrew Draper (adraper@altera.com).
Contributed by Mentor Graphics, Inc.
#include "value.h"
#include "symfile.h"
#include "arch-utils.h"
-#include "floatformat.h"
#include "infcall.h"
#include "regset.h"
#include "target-descriptions.h"
return nios2_analyze_prologue (gdbarch, start_pc, start_pc, &cache, NULL);
}
+/* Implement the breakpoint_kind_from_pc gdbarch method. */
+
static int
nios2_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
{
return NIOS2_OPCODE_SIZE;
}
+/* Implement the sw_breakpoint_from_kind gdbarch method. */
+
static const gdb_byte *
nios2_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size)
{
}
}
-/* Implement the breakpoint_from_pc gdbarch hook. */
-
-GDBARCH_BREAKPOINT_FROM_PC (nios2)
-
-/* Implement the print_insn gdbarch method. */
-
-static int
-nios2_print_insn (bfd_vma memaddr, disassemble_info *info)
-{
- if (info->endian == BFD_ENDIAN_BIG)
- return print_insn_big_nios2 (memaddr, info);
- else
- return print_insn_little_nios2 (memaddr, info);
-}
-
-
/* Implement the frame_align gdbarch method. */
static CORE_ADDR
int struct_return, CORE_ADDR struct_addr)
{
int argreg;
- int float_argreg;
int argnum;
int len = 0;
int stack_offset = 0;
branch prediction. */
static CORE_ADDR
-nios2_get_next_pc (struct frame_info *frame, CORE_ADDR pc)
+nios2_get_next_pc (struct regcache *regcache, CORE_ADDR pc)
{
- struct gdbarch *gdbarch = get_frame_arch (frame);
+ struct gdbarch *gdbarch = regcache->arch ();
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
unsigned long mach = gdbarch_bfd_arch_info (gdbarch)->mach;
unsigned int insn;
if (nios2_match_branch (insn, op, mach, &ra, &rb, &imm, &cond))
{
- int ras = get_frame_register_signed (frame, ra);
- int rbs = get_frame_register_signed (frame, rb);
- unsigned int rau = get_frame_register_unsigned (frame, ra);
- unsigned int rbu = get_frame_register_unsigned (frame, rb);
+ int ras = regcache_raw_get_signed (regcache, ra);
+ int rbs = regcache_raw_get_signed (regcache, rb);
+ unsigned int rau = regcache_raw_get_unsigned (regcache, ra);
+ unsigned int rbu = regcache_raw_get_unsigned (regcache, rb);
pc += op->size;
switch (cond)
else if (nios2_match_jmpr (insn, op, mach, &ra)
|| nios2_match_callr (insn, op, mach, &ra))
- pc = get_frame_register_unsigned (frame, ra);
+ pc = regcache_raw_get_unsigned (regcache, ra);
else if (nios2_match_ldwm (insn, op, mach, &uimm, &ra, &imm, &wb, &id, &ret)
&& ret)
/* If ra is in the reglist, we have to use the value saved in the
stack frame rather than the current value. */
if (uimm & (1 << NIOS2_RA_REGNUM))
- pc = nios2_unwind_pc (gdbarch, frame);
+ pc = nios2_unwind_pc (gdbarch, get_current_frame ());
else
- pc = get_frame_register_unsigned (frame, NIOS2_RA_REGNUM);
+ pc = regcache_raw_get_unsigned (regcache, NIOS2_RA_REGNUM);
}
else if (nios2_match_trap (insn, op, mach, &uimm) && uimm == 0)
{
if (tdep->syscall_next_pc != NULL)
- return tdep->syscall_next_pc (frame, op);
+ return tdep->syscall_next_pc (get_current_frame (), op);
}
else
/* Implement the software_single_step gdbarch method. */
-static int
-nios2_software_single_step (struct frame_info *frame)
+static std::vector<CORE_ADDR>
+nios2_software_single_step (struct regcache *regcache)
{
- struct gdbarch *gdbarch = get_frame_arch (frame);
- struct address_space *aspace = get_frame_address_space (frame);
- CORE_ADDR next_pc = nios2_get_next_pc (frame, get_frame_pc (frame));
+ CORE_ADDR next_pc = nios2_get_next_pc (regcache, regcache_read_pc (regcache));
- insert_single_step_breakpoint (gdbarch, aspace, next_pc);
-
- return 1;
+ return {next_pc};
}
/* Implement the get_longjump_target gdbarch method. */
set_gdbarch_skip_prologue (gdbarch, nios2_skip_prologue);
set_gdbarch_stack_frame_destroyed_p (gdbarch, nios2_stack_frame_destroyed_p);
- SET_GDBARCH_BREAKPOINT_MANIPULATION (nios2);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch, nios2_breakpoint_kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch, nios2_sw_breakpoint_from_kind);
set_gdbarch_dummy_id (gdbarch, nios2_dummy_id);
set_gdbarch_unwind_pc (gdbarch, nios2_unwind_pc);
frame_base_set_default (gdbarch, &nios2_frame_base);
- set_gdbarch_print_insn (gdbarch, nios2_print_insn);
-
/* Enable inferior call support. */
set_gdbarch_push_dummy_call (gdbarch, nios2_push_dummy_call);
return gdbarch;
}
-extern initialize_file_ftype _initialize_nios2_tdep; /* -Wmissing-prototypes */
-
void
_initialize_nios2_tdep (void)
{