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/*
* Copyright © 2023 Michael Smith <mikesmiffy128@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef _WIN32
#include <Windows.h>
#endif
#include "con_.h"
#include "engineapi.h"
#include "intdefs.h"
#include "ppmagic.h"
#include "udis86.h"
#ifdef _WIN32
usize dbg_toghidra(const void *addr) {
const void *mod;
if (!GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, (ushort *)addr,
(HMODULE *)&mod /* please leave me alone */)) {
con_warn("dbg_toghidra: couldn't get base address\n");
return 0;
}
return (const char *)addr - (const char *)mod + 0x10000000;
}
#endif
void dbg_hexdump(const char *name, const void *p, int len) {
struct rgba nice_colour = {160, 64, 200, 255}; // a nice purple colour
#ifdef _WIN32
con_colourmsg(&nice_colour, "Hex dump \"%s\" (%p | %p):\n", name, p,
(void *)dbg_toghidra(p));
#else
con_colourmsg(&nice_colour, "Hex dump \"%s\" (%p):\n", name, p);
#endif
for (const uchar *cp = p; cp - (uchar *)p < len; ++cp) {
// group into words and wrap every 8 words
switch ((cp - (uchar *)p) & 31) {
case 0: con_msg("\n"); break;
CASES(4, 8, 12, 16, 20, 24, 28): con_msg(" ");
}
con_colourmsg(&nice_colour, "%02X ", *cp);
}
con_msg("\n");
}
void dbg_asmdump(const char *name, const void *p, int len) {
struct rgba nice_colour = {40, 160, 140, 255}; // a nice teal colour
struct ud udis;
ud_init(&udis);
ud_set_mode(&udis, 32);
ud_set_input_buffer(&udis, p, len);
ud_set_syntax(&udis, UD_SYN_INTEL);
#ifdef _WIN32
con_colourmsg(&nice_colour, "Disassembly \"%s\" (%p | %p):\n", name, p,
(void *)dbg_toghidra(p));
#else
con_colourmsg(&nice_colour, "Disassembly \"%s\" (%p):\n", name, p);
#endif
while (ud_disassemble(&udis)) {
con_colourmsg(&nice_colour, " %s\n", ud_insn_asm(&udis));
}
}
// vi: sw=4 ts=4 noet tw=80 cc=80
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