adolforeyna/tactility
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

elf_loader refactored and added more symbols (#347)

Browse Source
This commit is contained in:
Ken Van Hoeylandt
2025-09-27 09:18:51 +02:00
committed by GitHub
parent 9cc58099b4
commit dcf28d0868
16 changed files with 782 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files
TactilityC/Source/tt_init.cpp
+77 -18
View File
@@ -25,38 +25,72 @@
#include "tt_timer.h"
#include "tt_wifi.h"
#include <private/elf_symbol.h>
#include "symbols/gcc_soft_float.h"
#include <cstring>
#include <ctype.h>
#include <private/elf_symbol.h>
#include <esp_log.h>
#include <esp_http_client.h>
#include <cassert>
#include <getopt.h>
#include <lvgl.h>
#include <pthread.h>
#include <setjmp.h>
extern "C" {
// Hidden functions work-around
// GCC internal new and delete
extern void* _Znwj(uint32_t size);
extern void _ZdlPvj(void* p, uint64_t size);
extern double __adddf3(double a, double b);
extern double __subdf3(double a, double b);
extern double __muldf3 (double a, double b);
extern double __divdf3 (double a, double b);
extern int __nedf2 (double a, double b);
const esp_elfsym elf_symbols[] {
// Hidden functions work-around
ESP_ELFSYM_EXPORT(_ZdlPvj), // new?
ESP_ELFSYM_EXPORT(_Znwj), // delete?
ESP_ELFSYM_EXPORT(__adddf3), // Routines for floating point emulation:
ESP_ELFSYM_EXPORT(__subdf3), // See https://gcc.gnu.org/onlinedocs/gccint/Soft-float-library-routines.html
ESP_ELFSYM_EXPORT(__muldf3),
ESP_ELFSYM_EXPORT(__nedf2),
ESP_ELFSYM_EXPORT(__divdf3),
// <cassert>
// GCC internal
ESP_ELFSYM_EXPORT(_Znwj), // new
ESP_ELFSYM_EXPORT(_ZdlPvj), // delete
// stdlib.h
ESP_ELFSYM_EXPORT(malloc),
ESP_ELFSYM_EXPORT(calloc),
ESP_ELFSYM_EXPORT(realloc),
ESP_ELFSYM_EXPORT(free),
// unistd.h
ESP_ELFSYM_EXPORT(usleep),
ESP_ELFSYM_EXPORT(sleep),
ESP_ELFSYM_EXPORT(exit),
ESP_ELFSYM_EXPORT(close),
// time.h
ESP_ELFSYM_EXPORT(clock_gettime),
ESP_ELFSYM_EXPORT(strftime),
// pthread
ESP_ELFSYM_EXPORT(pthread_create),
ESP_ELFSYM_EXPORT(pthread_attr_init),
ESP_ELFSYM_EXPORT(pthread_attr_setstacksize),
ESP_ELFSYM_EXPORT(pthread_detach),
ESP_ELFSYM_EXPORT(pthread_join),
ESP_ELFSYM_EXPORT(pthread_exit),
// sys/errno.h
ESP_ELFSYM_EXPORT(__errno),
// freertos_tasks_c_additions.h
ESP_ELFSYM_EXPORT(__getreent),
#ifdef __HAVE_LOCALE_INFO__
// ctype.h
ESP_ELFSYM_EXPORT(__locale_ctype_ptr),
#else
ESP_ELFSYM_EXPORT(_ctype_),
#endif
// getopt.h
ESP_ELFSYM_EXPORT(getopt_long),
ESP_ELFSYM_EXPORT(optind),
ESP_ELFSYM_EXPORT(opterr),
ESP_ELFSYM_EXPORT(optarg),
ESP_ELFSYM_EXPORT(optopt),
// setjmp.h
ESP_ELFSYM_EXPORT(longjmp),
ESP_ELFSYM_EXPORT(setjmp),
// cassert
ESP_ELFSYM_EXPORT(__assert_func),
// <cstdio>
// cstdio
ESP_ELFSYM_EXPORT(fclose),
ESP_ELFSYM_EXPORT(feof),
ESP_ELFSYM_EXPORT(ferror),
@@ -90,6 +124,12 @@ const esp_elfsym elf_symbols[] {
ESP_ELFSYM_EXPORT(strcat),
ESP_ELFSYM_EXPORT(strchr),
ESP_ELFSYM_EXPORT(strstr),
ESP_ELFSYM_EXPORT(strerror),
ESP_ELFSYM_EXPORT(strtod),
ESP_ELFSYM_EXPORT(strrchr),
ESP_ELFSYM_EXPORT(strtol),
ESP_ELFSYM_EXPORT(strcspn),
ESP_ELFSYM_EXPORT(strncat),
ESP_ELFSYM_EXPORT(memset),
ESP_ELFSYM_EXPORT(memcpy),
ESP_ELFSYM_EXPORT(memcmp),
@@ -490,8 +530,27 @@ const esp_elfsym elf_symbols[] {
ESP_ELFSYM_END
};
uintptr_t resolve_symbol(const esp_elfsym* source, const char* symbolName) {
const esp_elfsym* symbol_iterator = source;
while (symbol_iterator->name) {
if (!strcmp(symbol_iterator->name, symbolName)) {
return reinterpret_cast<uintptr_t>(symbol_iterator->sym);
}
symbol_iterator++;
}
return 0;
}
uintptr_t tt_symbol_resolver(const char* symbolName) {
uintptr_t address = resolve_symbol(elf_symbols, symbolName);
if (address != 0) {
return address;
}
return resolve_symbol(gcc_soft_float_symbols, symbolName);
}
void tt_init_tactility_c() {
elf_set_custom_symbols(elf_symbols);
elf_set_symbol_resolver(tt_symbol_resolver);
}
}