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Finish readelf

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This commit is contained in:
Baptiste Wicht 2014-02-24 21:01:34 +01:00
parent cc25c7c640
commit 66c5e85557
5 changed files with 10 additions and 11 deletions
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1
.gitignore vendored
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@ -25,5 +25,6 @@ programs/longtwo/longtwo
programs/longone/longone programs/longone/longone
programs/pwd/pwd programs/pwd/pwd
programs/which/which programs/which/which
programs/readelf/readelf
programs/cd/cd programs/cd/cd
programs/dist/ programs/dist/

6
kernel/src/scheduler.cpp
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@ -627,7 +627,9 @@ int64_t scheduler::exec(const std::string& file, const std::vector<std::string>&
return -std::ERROR_NOT_EXISTS; return -std::ERROR_NOT_EXISTS;
} }
if(!elf::is_valid(content)){ auto buffer = content.c_str();
if(!elf::is_valid(buffer)){
if(DEBUG_SCHEDULER){ if(DEBUG_SCHEDULER){
k_print_line("Not a valid file"); k_print_line("Not a valid file");
} }
@ -635,8 +637,6 @@ int64_t scheduler::exec(const std::string& file, const std::vector<std::string>&
return -std::ERROR_NOT_EXECUTABLE; return -std::ERROR_NOT_EXECUTABLE;
} }
auto buffer = content.c_str();
auto& process = new_process(); auto& process = new_process();
if(!create_paging(buffer, process)){ if(!create_paging(buffer, process)){

BIN
programs/readelf/readelf
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11
programs/readelf/src/main.cpp
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@ -13,16 +13,17 @@
namespace { namespace {
void readelf(std::string& content){ void readelf(char* buffer){
if(!elf::is_valid(content)){ if(!elf::is_valid(buffer)){
print_line("readelf: This file is not an ELF file or not in ELF64 format"); print_line("readelf: This file is not an ELF file or not in ELF64 format");
return; return;
} }
auto buffer = content.c_str();
auto header = reinterpret_cast<elf::elf_header*>(buffer); auto header = reinterpret_cast<elf::elf_header*>(buffer);
printf("%h\n", reinterpret_cast<size_t>(buffer));
printf("Number of Program Headers: %u\n", static_cast<uint64_t>(header->e_phnum)); printf("Number of Program Headers: %u\n", static_cast<uint64_t>(header->e_phnum));
printf("Number of Section Headers: %u\n", static_cast<uint64_t>(header->e_shnum)); printf("Number of Section Headers: %u\n", static_cast<uint64_t>(header->e_shnum));
@ -100,9 +101,7 @@ int main(int argc, char* argv[]){
if(*content_result != size){ if(*content_result != size){
//TODO Read more //TODO Read more
} else { } else {
std::string content(buffer); readelf(buffer);
readelf(content);
} }
} else { } else {
printf("readelf: error: %s\n", std::error_message(content_result.error())); printf("readelf: error: %s\n", std::error_message(content_result.error()));

3
tlib/include/elf.hpp
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@ -54,8 +54,7 @@ struct section_header {
uint64_t sh_entsize; uint64_t sh_entsize;
}__attribute__((packed)); }__attribute__((packed));
inline bool is_valid(const std::string& content){ inline bool is_valid(const char* buffer){
auto buffer = content.c_str();
auto header = reinterpret_cast<const elf::elf_header*>(buffer); auto header = reinterpret_cast<const elf::elf_header*>(buffer);
//Test if ELF file //Test if ELF file