本文整理汇总了C++中SymbolTable::InternSymbol方法的典型用法代码示例。如果您正苦于以下问题:C++ SymbolTable::InternSymbol方法的具体用法?C++ SymbolTable::InternSymbol怎么用?C++ SymbolTable::InternSymbol使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SymbolTable
的用法示例。
在下文中一共展示了SymbolTable::InternSymbol方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
//.........这里部分代码省略.........
{
libtable = new LibSymbolTable();
libtable->table.Initialize();
libtable->lib_base = dlmap->l_addr;
libtable->last_pos = 0;
table = &libtable->table;
m_SymTables.AddToTail(libtable);
}
/* See if the symbol is already cached in our table */
symbol_entry = table->FindSymbol(symbol, strlen(symbol));
if (symbol_entry != NULL)
{
return symbol_entry->address;
}
/* If symbol isn't in our table, then we have open the actual library */
dlfile = open(dlmap->l_name, O_RDONLY);
if (dlfile == -1 || fstat(dlfile, &dlstat) == -1)
{
close(dlfile);
return NULL;
}
/* Map library file into memory */
file_hdr = (Elf32_Ehdr *)mmap(NULL, dlstat.st_size, PROT_READ, MAP_PRIVATE, dlfile, 0);
map_base = (uintptr_t)file_hdr;
if (file_hdr == MAP_FAILED)
{
close(dlfile);
return NULL;
}
close(dlfile);
if (file_hdr->e_shoff == 0 || file_hdr->e_shstrndx == SHN_UNDEF)
{
munmap(file_hdr, dlstat.st_size);
return NULL;
}
sections = (Elf32_Shdr *)(map_base + file_hdr->e_shoff);
section_count = file_hdr->e_shnum;
/* Get ELF section header string table */
shstrtab_hdr = §ions[file_hdr->e_shstrndx];
shstrtab = (const char *)(map_base + shstrtab_hdr->sh_offset);
/* Iterate sections while looking for ELF symbol table and string table */
for (uint16_t i = 0; i < section_count; i++)
{
Elf32_Shdr &hdr = sections[i];
const char *section_name = shstrtab + hdr.sh_name;
if (strcmp(section_name, ".symtab") == 0)
{
symtab_hdr = &hdr;
}
else if (strcmp(section_name, ".strtab") == 0)
{
strtab_hdr = &hdr;
}
}
/* Uh oh, we don't have a symbol table or a string table */
if (symtab_hdr == NULL || strtab_hdr == NULL)
{
munmap(file_hdr, dlstat.st_size);
return NULL;
}
symtab = (Elf32_Sym *)(map_base + symtab_hdr->sh_offset);
strtab = (const char *)(map_base + strtab_hdr->sh_offset);
symbol_count = symtab_hdr->sh_size / symtab_hdr->sh_entsize;
/* Iterate symbol table starting from the position we were at last time */
for (uint32_t i = libtable->last_pos; i < symbol_count; i++)
{
Elf32_Sym &sym = symtab[i];
unsigned char sym_type = ELF32_ST_TYPE(sym.st_info);
const char *sym_name = strtab + sym.st_name;
Symbol *cur_sym;
/* Skip symbols that are undefined or do not refer to functions or objects */
if (sym.st_shndx == SHN_UNDEF || (sym_type != STT_FUNC && sym_type != STT_OBJECT))
{
continue;
}
/* Caching symbols as we go along */
cur_sym = table->InternSymbol(sym_name, strlen(sym_name), (void *)(dlmap->l_addr + sym.st_value));
if (strcmp(symbol, sym_name) == 0)
{
symbol_entry = cur_sym;
libtable->last_pos = ++i;
break;
}
}
munmap(file_hdr, dlstat.st_size);
return symbol_entry ? symbol_entry->address : NULL;
}
示例2: GetProcAddress
//.........这里部分代码省略.........
Symbol* cur_sym;
/* Skip symbols that are undefined or do not refer to functions or objects */
if (sym.st_shndx == SHN_UNDEF || (sym_type != STT_FUNC && sym_type != STT_OBJECT))
{
continue;
}
char *name_demangled = NULL;
int status;
size_t length = 0;
name_demangled = abi::__cxa_demangle(sym_name, NULL, &length, &status);
if (status != 0) {
continue;
}
//META_CONPRINTF("[MASTERHOOK] Checkpoint: 1\n");
//META_CONPRINTF("[MASTERHOOK] Checkpoint: 1.1 \"%s\"\n", name_demangled);
//META_CONPRINTF("[MASTERHOOK] Checkpoint: 1.2\n");
char* brace_open = NULL;
if (sym_type == STT_FUNC && strrchr(symbol, '(') == NULL) { // Is Function and passed symbol doesn't have an arglist
// Let's strip off the arglist as we don't want to compare with that
brace_open = strrchr(name_demangled, '(');
if (brace_open != NULL) {
brace_open[0] = '\0';
}
}
/* Caching symbols as we go along */
cur_sym = table->InternSymbol(name_demangled, strlen(name_demangled), (void *)(dlmap->l_addr + sym.st_value));
if (strcmp(name_demangled, symbol) == 0) {
if (brace_open != NULL) {
char* brace_close = strrchr(brace_open+1, ')');
if (brace_close != NULL) {
brace_close[0] = '\0';
}
if (length > strlen(brace_open+1)) {
brace_close[len] = '\0';
}
//META_CONPRINTF("[MASTERHOOK] Checkpoint: 2 \"%s\" d:%d\n", brace_open+1, len);
memmove(argsBuffer, brace_open+1, len);
argsBuffer[len] = '\0';
}
symbol_entry = cur_sym;
libtable->last_pos = ++i;
type = STT_FUNC;
free(name_demangled);
break;
}
//META_CONPRINTF("[MASTERHOOK] Checkpoint: 3 \"%s\"\n", name_demangled);
free(name_demangled);
//META_CONPRINTF("[MASTERHOOK] Checkpoint: 4\n");
}
#ifdef DEBUG
//META_CONPRINTF("[MASTERHOOK] Checkpoint: 5 - End of Symbol Table\n");
#endif
示例3: GetProcAddress
//.........这里部分代码省略.........
}
else if (strcmp(section_name, ".strtab") == 0)
{
strtab_hdr = &hdr;
}
}
/* Uh oh, we don't have a symbol table or a string table */
if (symtab_hdr == NULL || strtab_hdr == NULL)
{
munmap(file_hdr, dlstat.st_size);
return NULL;
}
symtab = (Elf32_Sym *)(map_base + symtab_hdr->sh_offset);
strtab = (const char *)(map_base + strtab_hdr->sh_offset);
symbol_count = symtab_hdr->sh_size / symtab_hdr->sh_entsize;
/* Iterate symbol table starting from the position we were at last time */
for (uint32_t i = libtable->last_pos; i < symbol_count; i++)
{
Elf32_Sym &sym = symtab[i];
unsigned char sym_type = ELF32_ST_TYPE(sym.st_info);
const char *sym_name = strtab + sym.st_name;
Symbol *cur_sym;
/* Skip symbols that are undefined or do not refer to functions or objects */
if (sym.st_shndx == SHN_UNDEF || (sym_type != STT_FUNC && sym_type != STT_OBJECT))
{
continue;
}
/* Caching symbols as we go along */
cur_sym = table->InternSymbol(sym_name, strlen(sym_name), (void *)(dlmap->l_addr + sym.st_value));
if (strcmp(symbol, sym_name) == 0)
{
symbol_entry = cur_sym;
libtable->last_pos = ++i;
break;
}
}
munmap(file_hdr, dlstat.st_size);
return symbol_entry ? symbol_entry->address : NULL;
#elif defined(__APPLE__)
uintptr_t dlbase, linkedit_addr;
uint32_t image_count;
struct mach_header *file_hdr;
struct load_command *loadcmds;
struct segment_command *linkedit_hdr;
struct symtab_command *symtab_hdr;
struct nlist *symtab;
const char *strtab;
uint32_t loadcmd_count;
uint32_t symbol_count;
LibSymbolTable *libtable;
SymbolTable *table;
Symbol *symbol_entry;
dlbase = 0;
image_count = m_ImageList->infoArrayCount;
linkedit_hdr = NULL;
symtab_hdr = NULL;
table = NULL;