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/***************************************************************/
/* mgdb: midipix-specific bits for gdb */
/* Copyright (C) 2019 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.MGDB. */
/***************************************************************/
#include "defs.h"
#include "osabi.h"
#include "regcache.h"
#include "frame-unwind.h"
#include "windows-tdep.h"
#include "amd64-windows-tdep.c"
#include <signal.h>
#include <sys/debug.h>
#define amd64_winnt_push_dummy_call amd64_windows_push_dummy_call
#define amd64_winnt_return_value amd64_windows_return_value
#define amd64_winnt_skip_trampoline_code amd64_windows_skip_trampoline_code
#define amd64_winnt_skip_prologue amd64_windows_skip_prologue
#define amd64_winnt_skip_main_prologue amd64_skip_main_prologue
#define amd64_winnt_frame_unwind amd64_windows_frame_unwind
struct regcache;
static void amd64_winnt_supply_reg(
struct regcache * rcache,
int regnum, uintptr_t regval)
{
regcache_raw_supply(rcache,regnum,®val);
}
static void amd64_winnt_supply_pc_regs(
struct regcache * rcache,
mcontext_t * regctx)
{
amd64_winnt_supply_reg(rcache,AMD64_RIP_REGNUM,regctx->uc_rip);
}
int amd64_winnt_fetch_registers(
int pfd, struct regcache * rcache,
int regnum, pid_t tid)
{
int ret;
mcontext_t regctx;
if ((ret = __dbg_regs_fetch(pfd,tid,®ctx)) < 0)
return ret;
if (regnum == AMD64_RIP_REGNUM)
amd64_winnt_supply_pc_regs(rcache,®ctx);
return 0;
}
static void amd64_winnt_init_abi (struct gdbarch_info info, struct gdbarch * gdbarch)
{
/* abi */
amd64_init_abi (info, gdbarch);
windows_init_abi (info, gdbarch);
/* out-of-band function calls */
set_gdbarch_push_dummy_call (gdbarch, amd64_winnt_push_dummy_call);
set_gdbarch_return_value (gdbarch, amd64_winnt_return_value);
set_gdbarch_skip_trampoline_code (gdbarch, amd64_winnt_skip_trampoline_code);
/* skip prologue methods */
set_gdbarch_skip_prologue (gdbarch, amd64_windows_skip_prologue);
set_gdbarch_skip_main_prologue (gdbarch, amd64_skip_main_prologue);
/* todo: SEH unwinder */
frame_unwind_append_unwinder (gdbarch, &amd64_winnt_frame_unwind);
/* todo: inferior-specific, dynamically detected size of long */
set_gdbarch_long_bit (gdbarch, 64);
}
extern initialize_file_ftype _initialize_amd64_winnt_tdep;
void
_initialize_amd64_winnt_tdep (void)
{
gdbarch_register_osabi(
bfd_arch_i386,
bfd_mach_x86_64,
GDB_OSABI_WINNT,
amd64_winnt_init_abi);
}
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