banan-os/bootloader/installer/main.cpp

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#include "ELF.h"
#include "GPT.h"
#include <iostream>
int main(int argc, char** argv)
{
using namespace std::string_view_literals;
if (argc != 4)
{
std::fprintf(stderr, "usage: %s BOOTLOADER DISK_IMAGE ROOT_PARTITION_GUID\n", argv[0]);
return 1;
}
auto root_partition_guid = GUID::from_string(argv[3]);
if (!root_partition_guid.has_value())
{
std::cerr << "invalid guid '" << argv[3] << '\'' << std::endl;
return 1;
}
ELFFile bootloader(argv[1]);
if (!bootloader.success())
return 1;
auto stage1 = bootloader.find_section(".stage1"sv);
auto stage2 = bootloader.find_section(".stage2"sv);
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auto data = bootloader.find_section(".data"sv);
if (!stage1.has_value() || !stage2.has_value() || !data.has_value())
{
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std::cerr << bootloader.path() << " doesn't contain .stage1, .stage2 and .data sections" << std::endl;
return 1;
}
GPTFile disk_image(argv[2]);
if (!disk_image.success())
return 1;
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if (!disk_image.install_bootloader(*stage1, *stage2, *data, *root_partition_guid))
return 1;
std::cout << "bootloader installed" << std::endl;
return 0;
}