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disasmtool_lix: Align the address part to the biggest one

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This way, it will always be aligned when dumping instructions:

  0 50    PUSH rax
...
 10 50    PUSH rax
...
100 50    PUSH rax
This commit is contained in:
Cristian-Bogdan SIRB 2020-07-28 16:05:53 +03:00
parent 5e14a6f25c
commit 75702e9f0d
1 changed files with 8 additions and 4 deletions
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12
disasmtool_lix/disasmtool.cpp
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@ -6,6 +6,7 @@
#include <fstream>
#include <memory>
#include <limits>
#include <cmath>
#include "external/argparse.h"
@ -57,6 +58,7 @@ struct options {
// From here on, these are set internally
std::unique_ptr<uint8_t[]> bytes;
size_t actual_size;
int address_size;
bool output_redirected;
};
@ -223,11 +225,11 @@ void print_instruction(const size_t rip, INSTRUX *instrux, const options &opts)
char instruxText[ND_MIN_BUF_SIZE];
uint32_t k = 0;
printf("%zx ", rip);
printf("%*zx ", opts.address_size, rip);
if (!opts.no_color)
{
_set_text_color(White);
_set_text_color(Magenta);
for (uint32_t idx = 0; idx < instrux->PrefLength; idx++, k++)
{
printf("%02x", instrux->InstructionBytes[k]);
@ -489,6 +491,8 @@ size_t disassemble(options &opts)
auto bytes = opts.bytes.get();
auto disasm_size = std::min(opts.actual_size - opts.offset, opts.size);
opts.address_size = int(std::ceil(((8 * sizeof(opts.actual_size)) - __builtin_clzll(opts.actual_size)) / 4.0));
while ((total_disasm < disasm_size) && (icount < opts.count)) {
INSTRUX instrux;
@ -507,9 +511,9 @@ size_t disassemble(options &opts)
auto j = byte_to_json(bytes[rel_rip], rel_rip + opts.rip);
std::cout << j.GetString() << std::endl;
} else {
printf("%zx ", rel_rip + opts.rip);
printf("%*zx ", opts.address_size, rel_rip + opts.rip);
printf("%02x", bytes[rel_rip]);
printf("%s", gSpaces[16 - 1]);
printf("%s", gSpaces[16 - opts.address_size]);
printf("db 0x%02x\n", bytes[rel_rip]);
}
}