Method getMemSizeOfElf

source/kernel/loader/loader.cpp:159–191

}

int ElfLoader::getMemSizeOfElf(FsOpenNode* openNode) {
    U8 buffer[sizeof(struct k_Elf32_Ehdr)] = { 0 };
    struct k_Elf32_Ehdr* hdr = (struct k_Elf32_Ehdr*)buffer;
    U64 pos = openNode->getFilePointer();
    U32 address = 0xFFFFFFFF;
    int sections = 0;

    openNode->seek(0);
    U32 len = openNode->readNative(buffer, sizeof(buffer));
    if (len != sizeof(buffer)) {
        return 0;
    }
    if (!isValidElf(hdr)) {
        openNode->seek(pos);
        return 0;
    }

    len = 0;
    openNode->seek(hdr->e_phoff);
    for (int i = 0; i<hdr->e_phnum; i++) {
        struct k_Elf32_Phdr phdr;
        openNode->readNative((U8*)&phdr, sizeof(struct k_Elf32_Phdr));
        if (phdr.p_type == PT_LOAD) {
            if (phdr.p_paddr<address)
                address = phdr.p_paddr;
            if (len<phdr.p_paddr + phdr.p_memsz)
                len = phdr.p_paddr + phdr.p_memsz;
            sections++;
        }
    }
    openNode->seek(pos);
    return len - address + 4096*sections; // 4096 for alignment
}
#if 0
U32 getPELoadAddress(struct FsOpenNode* openNode, U32* section, U32* numberOfSections, U32* sizeOfSection) {
    static U8 buffer[1024];