unleashed-firmware/applications/main/fap_loader/elf_cpp/elf_hashtable.cpp
SG b9a766d909 [FL-2627] Flipper applications: SDK, build and debug system (#1387)
* Added support for running applications from SD card (FAPs - Flipper Application Packages)
* Added plugin_dist target for fbt to build FAPs
* All apps of type FlipperAppType.EXTERNAL and FlipperAppType.PLUGIN are built as FAPs by default
* Updated VSCode configuration for new fbt features - re-deploy stock configuration to use them
* Added debugging support for FAPs with fbt debug & VSCode
* Added public firmware API with automated versioning

Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: SG <who.just.the.doctor@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>
2022-09-15 02:21:03 +09:00

48 lines
1.3 KiB
C++

#include "compilesort.hpp"
#include "elf_hashtable.h"
#include "elf_hashtable_entry.h"
#include "elf_hashtable_checks.hpp"
#include <array>
#include <algorithm>
/* Generated table */
#include <symbols.h>
#define TAG "elf_hashtable"
static_assert(!has_hash_collisions(elf_api_table), "Detected API method hash collision!");
/**
* Get function address by function name
* @param name function name
* @param address output for function address
* @return true if the table contains a function
*/
bool elf_resolve_from_hashtable(const char* name, Elf32_Addr* address) {
bool result = false;
uint32_t gnu_sym_hash = elf_gnu_hash(name);
sym_entry key = {
.hash = gnu_sym_hash,
.address = 0,
};
auto find_res = std::lower_bound(elf_api_table.cbegin(), elf_api_table.cend(), key);
if((find_res == elf_api_table.cend() || (find_res->hash != gnu_sym_hash))) {
FURI_LOG_W(TAG, "Cant find symbol '%s' (hash %x)!", name, gnu_sym_hash);
result = false;
} else {
result = true;
*address = find_res->address;
}
return result;
}
const ElfApiInterface hashtable_api_interface = {
.api_version_major = (elf_api_version >> 16),
.api_version_minor = (elf_api_version & 0xFFFF),
.resolver_callback = &elf_resolve_from_hashtable,
};