C++ elf_getdata函数代码示例

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本文整理汇总了C++中elf_getdata函数的典型用法代码示例。如果您正苦于以下问题：C++ elf_getdata函数的具体用法？C++ elf_getdata怎么用？C++ elf_getdata使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了elf_getdata函数的20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，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: FindExportTrampolines

static ExportTrampolineVector FindExportTrampolines(Elf *e,
                                                    const ElfSectionInfo &xptramp_info) {
    auto sym_scn = FindSectionByType(e, SHT_DYNSYM);
    auto sym_data = elf_getdata(sym_scn.first, nullptr);
    auto syms = reinterpret_cast<Elf_Sym*>(sym_data->d_buf);

    ExportTrampolineVector res;
    // FIXME: this assumes that the whole section
    // is inside a single Elf_Data object
    auto xptramp_data = elf_getdata(xptramp_info.first, nullptr);
    auto xptramp_start = reinterpret_cast<uint8_t*>(xptramp_data->d_buf);
    auto xptramp_end = xptramp_start + xptramp_data->d_size;
    for (auto ptr = xptramp_start; ptr < xptramp_end;) {
        auto addr = xptramp_info.second.sh_addr   + xptramp_data->d_off + (ptr - xptramp_start);
        auto  ofs = xptramp_info.second.sh_offset + xptramp_data->d_off + (ptr - xptramp_start);
        auto arg = *reinterpret_cast<uint32_t*>(ptr + 1);
        switch(ptr[0]) {
        case 0x01:
            res.emplace_back(addr, ofs, syms[arg].st_value);
            break;
        case 0xE9:
            break;
        default:
            errx(EX_SOFTWARE, ".xptramp section has invalid byte: %hhd\n", ptr[0]);
        }
        ptr += 5;
    }
    return res;
}

开发者ID:yurizhykin，项目名称:selfrando，代码行数:29，代码来源:PatchEntry.cpp

示例2: get_data_from_iterator

unsigned char *
get_data_from_iterator (struct data_iterator *it, GElf_Addr size)
{
  unsigned char *ptr;

  /* If we're at the end of a data block, move onto the next.  */
  if (it->data && it->data->d_off + it->data->d_size == it->sec_offset)
    it->data = elf_getdata (it->dso->scn[it->sec], it->data);

  if (it->data == NULL)
    {
      /* Find out which section contains the next byte.  */
      it->sec = addr_to_sec (it->dso, it->addr);
      if (it->sec < 0)
	return NULL;

      /* Fast-forward to the block that contains ADDR, if any.  */
      it->sec_offset = it->addr - it->dso->shdr[it->sec].sh_addr;
      do
	it->data = elf_getdata (it->dso->scn[it->sec], it->data);
      while (it->data && it->data->d_off + it->data->d_size <= it->sec_offset);
    }

  /* Make sure that all the data we want is included in this block.  */
  if (it->data == NULL
      || it->data->d_off > it->sec_offset
      || it->data->d_off + it->data->d_size < it->sec_offset + size)
    return NULL;

  ptr = (unsigned char *) it->data->d_buf + (it->sec_offset - it->data->d_off);
  it->sec_offset += size;
  it->addr += size;
  return ptr;
}

开发者ID:foxsen，项目名称:prelink，代码行数:34，代码来源:data.c

示例3: handle_dynamic_section

static void handle_dynamic_section(elf_info_s *elf, Elf_Scn *scn, GElf_Shdr shdr)
{
    Elf_Data *data;
    GElf_Addr replt_addr;
    size_t replt_count;

    /* get data of .dynamic */
    data = elf_getdata(scn, NULL);

    /* iterate through .dynamic */
    for (size_t i = 0; i < shdr.sh_size / shdr.sh_entsize; ++i) {
        GElf_Dyn dyn;

        // get entries i
        gelf_getdyn(data, i, &dyn);
        // if replt
        if (dyn.d_tag == DT_JMPREL)
            replt_addr = dyn.d_un.d_ptr;
        // if replt_size
        if (dyn.d_tag == DT_PLTRELSZ)
            replt_count = dyn.d_un.d_val;
    }
    LOG(INFO, "Section relplt at 0x%lx (%zu)", replt_addr, replt_count);
    for (size_t i = 1; i < elf->hdr.e_shnum; ++i) {
        Elf_Scn *scn;
        GElf_Shdr shdr;
        scn = elf_getscn(elf->elf, i);
        gelf_getshdr(scn, &shdr);
        if (shdr.sh_addr == replt_addr && shdr.sh_size == replt_count) {
            elf->replt = elf_getdata(scn, NULL);
            elf->replt_count = shdr.sh_size / shdr.sh_entsize;
            break;
        }
    }
}

开发者ID:schischi，项目名称:my_ltrace，代码行数:35，代码来源:elfd.c

示例4: resolve_relocations

static void	resolve_relocations(sym_strtab **list)
{
  Elf_Scn	*scn;
  Elf64_Shdr	*shdr;

  scn = NULL;
  while ((scn = elf_nextscn(e, scn)))
    {
      if ((shdr = elf64_getshdr(scn)) == NULL)
      	exit_error("gelf_getshdr() fail");
      if (shdr->sh_type == SHT_DYNSYM)
	{
	  Elf_Data	*data;
	  data = elf_getdata(scn, NULL);
	  dynsym_tab = (Elf64_Sym*)data->d_buf;
	}
      if (shdr->sh_type == SHT_STRTAB && shdr->sh_flags == SHF_ALLOC)
	{
	  Elf_Data	*data;
	  data = elf_getdata(scn, NULL);
	  dynsym_strtab = (char*)data->d_buf;
	}
    }
  if (!dynsym_tab)
    return;
  scn = NULL;
  while ((scn = elf_nextscn(e, scn)))
    {
      if ((shdr = elf64_getshdr(scn)) == NULL)
      	exit_error("gelf_getshdr() fail");
      if (shdr->sh_type == SHT_RELA)
	reloc_treatment(scn, shdr, list);
    }
}

开发者ID:basticho，项目名称:ftrace，代码行数:34，代码来源:symbolnames.c

示例5: elf_getdata

static Elf_Data *loaddata(Elf_Scn *scn, GElf_Shdr *shdr)
{
	Elf_Data *data = elf_getdata(scn, NULL);
	if (data == NULL || elf_getdata(scn, data) != NULL
	    || data->d_off || data->d_size != shdr->sh_size)
		return NULL;
	return data;
}

开发者ID:KapJlcoH，项目名称:ltrace，代码行数:8，代码来源:ltrace-elf.c

示例6: radeon_elf_read

void radeon_elf_read(const char *elf_data, unsigned elf_size,
					struct radeon_shader_binary *binary,
					unsigned debug)
{
	char *elf_buffer;
	Elf *elf;
	Elf_Scn *section = NULL;
	size_t section_str_index;

	/* One of the libelf implementations
	 * (http://www.mr511.de/software/english.htm) requires calling
	 * elf_version() before elf_memory().
	 */
	elf_version(EV_CURRENT);
	elf_buffer = MALLOC(elf_size);
	memcpy(elf_buffer, elf_data, elf_size);

	elf = elf_memory(elf_buffer, elf_size);

	elf_getshdrstrndx(elf, &section_str_index);
	binary->disassembled = 0;

	while ((section = elf_nextscn(elf, section))) {
		const char *name;
		Elf_Data *section_data = NULL;
		GElf_Shdr section_header;
		if (gelf_getshdr(section, &section_header) != &section_header) {
			fprintf(stderr, "Failed to read ELF section header\n");
			return;
		}
		name = elf_strptr(elf, section_str_index, section_header.sh_name);
		if (!strcmp(name, ".text")) {
			section_data = elf_getdata(section, section_data);
			binary->code_size = section_data->d_size;
			binary->code = MALLOC(binary->code_size * sizeof(unsigned char));
			memcpy(binary->code, section_data->d_buf, binary->code_size);
		} else if (!strcmp(name, ".AMDGPU.config")) {
			section_data = elf_getdata(section, section_data);
			binary->config_size = section_data->d_size;
			binary->config = MALLOC(binary->config_size * sizeof(unsigned char));
			memcpy(binary->config, section_data->d_buf, binary->config_size);
		} else if (debug && !strcmp(name, ".AMDGPU.disasm")) {
			binary->disassembled = 1;
			section_data = elf_getdata(section, section_data);
			fprintf(stderr, "\nShader Disassembly:\n\n");
			fprintf(stderr, "%.*s\n", (int)section_data->d_size,
						  (char *)section_data->d_buf);
		}
	}

	if (elf){
		elf_end(elf);
	}
	FREE(elf_buffer);
}

开发者ID:Haifen，项目名称:Mesa-3D，代码行数:55，代码来源:radeon_elf_util.c

示例7: read_trap_data

struct trap_data_t read_trap_data(struct trap_file_t *file) {
    struct trap_data_t res = { TRAP_PLATFORM_UNKNOWN, 0, 0, NULL, 0 };
    Elf_Scn *txtrp_scn = find_section(file->elf, ".txtrp");
    if (txtrp_scn == NULL)
        return res;

    GElf_Shdr shdr;
    if (gelf_getshdr(txtrp_scn, &shdr) == NULL)
        errx(EXIT_FAILURE, "Cannot get section header");
    res.txtrp_address = shdr.sh_addr;

    // Get the platform
    GElf_Ehdr ehdr;
    if (gelf_getehdr(file->elf, &ehdr) == NULL)
        errx(EXIT_FAILURE, "Cannot get ELF header");
    switch (ehdr.e_machine) {
    case EM_386:
        res.trap_platform = TRAP_PLATFORM_POSIX_X86;
        break;

    case EM_X86_64:
        res.trap_platform = TRAP_PLATFORM_POSIX_X86_64;
        break;

    case EM_ARM:
        res.trap_platform = TRAP_PLATFORM_POSIX_ARM;
        break;

    case 183: // EM_AARCH64
        res.trap_platform = TRAP_PLATFORM_POSIX_ARM64;
        break;

    default:
        errx(EXIT_FAILURE, "Unknown ELF machine");
        break;
    }

    Elf_Data *data = elf_getdata(txtrp_scn, NULL);
    for (data = elf_getdata(txtrp_scn, NULL);
         data != NULL;
         data = elf_getdata(txtrp_scn, data))
        res.size += data->d_size;

    res.data = malloc(res.size);
    uint8_t *ptr = res.data;
    for (data = elf_getdata(txtrp_scn, NULL);
         data != NULL;
         data = elf_getdata(txtrp_scn, data)) {
        memcpy(ptr, data->d_buf, data->d_size);
        ptr += data->d_size;
    }
    return res;
}

开发者ID:immunant，项目名称:selfrando，代码行数:53，代码来源:ReadTrap.c

示例8: handle_dynsym_section

static void handle_dynsym_section(elf_info_s *elf, Elf_Scn *scn, GElf_Shdr shdr)
{
    Elf_Data *data;
    /* get .dynsym data and size */
    elf->dynsym = elf_getdata(scn, NULL);
    elf->dynsym_count = shdr.sh_size / shdr.sh_entsize;

    /* retrieve the header table index link which point to .dynstr */
    scn = elf_getscn(elf->elf, shdr.sh_link);
    gelf_getshdr(scn, &shdr);
    /* get the data of .dynstr */
    data = elf_getdata(scn, NULL);
    elf->dynstr = data->d_buf;
}

开发者ID:schischi，项目名称:my_ltrace，代码行数:14，代码来源:elfd.c

示例9: extract_functions_internal

/* Below code adapted from libelf tutorial example */
static u32 extract_functions_internal (const char *str, func_entry *func_list) {
    Elf *e;
    Elf_Kind ek;
    Elf_Scn *scn;
    Elf_Data *edata;
    u32 fd, i, symbol_count;
    GElf_Sym sym;
    GElf_Shdr shdr;
    u32 func_count = 0;

    if(elf_version(EV_CURRENT) == EV_NONE) {
        printf("Error initializing ELF: %s\n", elf_errmsg(-1));
        return -1;
    }

    if ((fd = open(str, O_RDONLY, 0)) < 0) {
        printf("Unable to open %s\n", str);
        return -1;
    }

    if ((e = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
        printf("elf_begin failed: %s\n", elf_errmsg(-1));
    }

    ek = elf_kind(e);
    if(ek != ELF_K_ELF) {
        printf("not an ELF object");
    } else {
        scn = NULL;
        edata = NULL;
        while((scn = elf_nextscn(e, scn)) != NULL) {
            gelf_getshdr(scn, &shdr);
            if(shdr.sh_type == SHT_SYMTAB) {
                edata = elf_getdata(scn, edata);
                symbol_count = shdr.sh_size / shdr.sh_entsize;
                for(i = 0; i < symbol_count; i++) {
                    gelf_getsym(edata, i, &sym);
                    if(ELF32_ST_TYPE(sym.st_info) != STT_FUNC) {
                        check_for_end_marker(elf_strptr(e, shdr.sh_link, sym.st_name), sym.st_value);
                        continue;
                    }
                    if(sym.st_size == 0) continue;

                    func_list[func_count].offset = sym.st_value;
                    func_list[func_count++].func_name = strdup(elf_strptr(e, shdr.sh_link, sym.st_name));

                    if(func_count >= MAXFNS) {
                        printf("Func limit (%"PRId32") reached, please increase MAXFNS & rebuild\n", MAXFNS);
                        raise(SIGABRT);
                    }
                    //                    printf("%08x %08x\t%s\n", sym.st_value, sym.st_size, elf_strptr(e, shdr.sh_link, sym.st_name));
                }
            }
        }
    }

    elf_end(e);
    close(fd);
    return func_count;
}

开发者ID:shamouda，项目名称:ocr，代码行数:61，代码来源:elf-utils.c

示例10: exec_getdata

/* if this function encounters an error it never returns */
static Elf_Data *exec_getdata( Elf_Scn *scn, int line )
#define exec_getdata(a) \
    exec_getdata(a,__LINE__)
{
    Elf_Data *data;
    char *location;

    location = NULL;
    data = elf_getdata(scn, NULL);
    if ( data != NULL )
    {
        if ( data->d_buf != NULL )
        {
            return data;
        }
        else
        {
            location = "d_buf";
        }
    }
    else
    {
        location = "elf_data";
    }
    fprintf( stderr, "exec_getdata: %[email protected]%d - %s\n", location, line,
             elf_errmsg( -1 ) );
    exit( 1 );
}

开发者ID:wodz，项目名称:open21xx，代码行数:29，代码来源:execfile.c

示例11: find_symbol

int find_symbol(char *fn, struct lsym *lsym, unsigned long baseaddr)
{
	struct lsym *ls;
	int num = 0;
	for (ls = lsym; ls->name; ls++)
		num++;

	elf_version(EV_CURRENT);
	int fd = open(fn, O_RDONLY);
	if (fd < 0)
		return -1;

	long ret = -1;
	Elf *elf = elf_begin(fd, ELF_C_READ, NULL);
	if (elf == NULL)
		goto out;

	GElf_Ehdr header;
	if (!gelf_getehdr(elf, &header))
		goto out_elf;

	Elf_Scn *section = NULL;
	int found = 0;
	while (found < num && (section = elf_nextscn(elf, section)) != 0) {
		GElf_Shdr shdr, *sh;
		sh = gelf_getshdr(section, &shdr);

		if (sh->sh_type == SHT_SYMTAB || sh->sh_type == SHT_DYNSYM) {
			Elf_Data *data = elf_getdata(section, NULL);
			GElf_Sym *sym, symbol;
			int j;

			unsigned numsym = sh->sh_size / sh->sh_entsize;
			for (j = 0; j < numsym; j++) {
				sym = gelf_getsymshndx(data, NULL, j, &symbol, NULL);
				char *symname = elf_strptr(elf, shdr.sh_link, sym->st_name);
				for (ls = lsym; ls->name; ls++) {
					if (!strcmp(symname, ls->name)) {
						Elf_Scn *oscn = elf_getscn(elf, sym->st_shndx);
						GElf_Shdr oshdr, *osh;
						osh = gelf_getshdr(oscn, &oshdr);
						ls->addr = (sym->st_value - osh->sh_addr) + osh->sh_offset + baseaddr;
						found++;
						if (found == num)
							break;
					}
				}
			}
		}
	}
	if (found == num)
		ret = 0;

out_elf:
	elf_end(elf);

out:
	close(fd);
	return ret;
}

开发者ID:gcracker，项目名称:tsx-tools，代码行数:60，代码来源:sym.c

示例12: dump_dynamic

static int dump_dynamic(struct file_state *f, Elf_Scn *scn, GElf_Shdr *shdr)
{
	struct dyn_state d;
	GElf_Dyn needed_dyn;
	char *needed_name;
	int i;

	d.f = f;
	d.dyn_data = elf_getdata(scn, NULL);
	if (!d.dyn_data) {
		elf_err("elf_getdata failed");
		return -1;
	}
	d.count = shdr->sh_size / shdr->sh_entsize;

	for (i = 0; i < d.count; i++) {
		if (!gelf_getdyn(d.dyn_data, i, &needed_dyn))
			continue;

		if (needed_dyn.d_tag != DT_NEEDED)
			continue;

		needed_name = (char *)f->strtab_data->d_buf
			      + needed_dyn.d_un.d_val;

		dump_needed(f->t, needed_name);
	}

	return 0;
}

开发者ID:0omega，项目名称:platform_development，代码行数:30，代码来源:elftree.c

示例13: get_scnbyname

Elf_Scn *
get_scnbyname(Elf *elf, char *name, int *num)
{
	Elf32_Ehdr	* ehdr;
	Elf_Scn		* scn;
	Elf32_Shdr	* shdr;
	Elf_Data	* data;
	int		  cnt,
			  tmp;

	if (!num)
		num = &tmp;
	
	*num = 0;

	if ((ehdr = elf32_getehdr(elf))==NULL)
		return NULL;

	if (((scn = elf_getscn(elf, ehdr->e_shstrndx)) == NULL) ||
	    ((data = elf_getdata(scn, NULL)) == NULL))
		return NULL;

	for (cnt = 1, scn = NULL; (scn = elf_nextscn(elf, scn)); cnt++) {
		if ((shdr = elf32_getshdr(scn)) == NULL)
			return NULL;

		if (! strcmp(name, (char *)data->d_buf + shdr->sh_name)) {
			*num = cnt;
			return scn;
		}
	}
	return NULL;
}

开发者ID:akpotter，项目名称:binary-encryption，代码行数:33，代码来源:util.c

示例14: load_script

/**
 * Read a script from it's elf section and store it
 * @param script In output, contains the lua script loaded
 * @param scn section containing the script
 * @param shdr section header
 * @param name name of the script
 */
static void load_script(struct lua_script *script, Elf_Scn *scn,
		GElf_Shdr *shdr, const char *name)
{
	unsigned i;
	Elf_Data *data;
	char *p;

	script->name = strdup(name + strlen(LUA_WRAPPER_SECTION_PREFIX));
	if (script->name == NULL)
	        exit(101);
	script->code = calloc(shdr->sh_size + 1, 1);
	if (script->name == NULL)
		exit(102);

	script->code[shdr->sh_size] = '\0';
	data = NULL;
	i = 0;
	while (i < shdr->sh_size && (data = elf_getdata(scn, data)) != NULL) {
		p = data->d_buf;
		while (p < (char *)data->d_buf + data->d_size) {
			script->code[i] = *p;
			i++;
			p++;
		}
	}
	remove_shebang(script->code);
}

开发者ID:csaszitoma，项目名称:configi，代码行数:34，代码来源:luawrapper.c

示例15: ELF_ASSERT

Elf_Scn *elf_utils_new_scn_with_name(Elf *e, const char *scn_name)
{
	Elf_Scn *scn;
	GElf_Shdr shdr;
	size_t shstrndx, index, namelen;
	Elf_Data *shstrdata;
	void *ptr;

	ELF_ASSERT(elf_getshdrstrndx(e, &shstrndx) == 0);

	ELF_ASSERT(scn = elf_getscn(e, shstrndx));
	ELF_ASSERT(shstrdata = elf_getdata(scn, NULL));

	namelen = strlen(scn_name) + 1;
	ELF_ASSERT(gelf_getshdr(scn, &shdr));
	if (!elf_utils_shift_contents(e, shdr.sh_offset + shdr.sh_size, namelen))
		goto failure;
	ASSERT(ptr = realloc(shstrdata->d_buf, shstrdata->d_size + namelen));
	index = shstrdata->d_size;
	strcpy(ptr+index, scn_name);
	shstrdata->d_buf = ptr;
	shstrdata->d_size += namelen;
	shdr.sh_size += namelen;
	ELF_ASSERT(gelf_update_shdr(scn, &shdr));

	ELF_ASSERT(scn = elf_newscn(e));
	ELF_ASSERT(gelf_getshdr(scn, &shdr));
	shdr.sh_name = index;
	ELF_ASSERT(gelf_update_shdr(scn, &shdr));
	
	return scn;
failure:
	return NULL;
}

开发者ID:nterry，项目名称:vita-toolchain，代码行数:34，代码来源:elf-utils.c

示例16: elf_scn_getsymaddr_byname

/**
 * @brief Search a single, particular ELF symbol table for a named symbol
 *
 * @param elf The open ELF object
 * @param symtab The ELF symbol table section
 * @param name The symbol name to find
 *
 * @returns The address to which the symbol points, 0 otherwise.
 */
static GElf_Addr elf_scn_getsymaddr_byname(Elf *elf, Elf_Scn *symtab,
                                           const char * name) {
    GElf_Shdr shdr;
    Elf_Data *data;
    uint32_t syms, i;
    GElf_Sym sym;

    if (gelf_getshdr(symtab, &shdr) == NULL || shdr.sh_type != SHT_SYMTAB) {
        return 0;
    }

    data = elf_getdata(symtab, NULL);
    if (data == NULL) {
        return 0;
    }

    syms = shdr.sh_size / shdr.sh_entsize;

    for(i=0; i<syms; i++) {
        gelf_getsym(data, i, &sym);
        if (strcmp(elf_strptr(elf, shdr.sh_link, sym.st_name), name) == 0) {
            return sym.st_value;
        }
    }

    return 0;
}

开发者ID:girling-morgan，项目名称:bootrom-tools，代码行数:36，代码来源:tftf_in.c

示例17: extract_section_and_copy

/* Extract section and copy into HsaBrig */
static status_t extract_section_and_copy (Elf *elfP,
                                       Elf_Data *secHdr, 
                                       const SectionDesc* desc,
                                       hsa_ext_brig_module_t* brig_module,
                                       hsa_ext_brig_section_id_t section_id) {
    Elf_Scn* scn = NULL;
    Elf_Data* data = NULL;
    void* address_to_copy;
    size_t section_size=0;

    scn = extract_elf_section(elfP, secHdr, desc);

    if (scn) {
        if ((data = elf_getdata(scn, NULL)) == NULL) {
            return STATUS_UNKNOWN;
        }
        section_size = data->d_size;
        if (section_size > 0) {
          address_to_copy = malloc(section_size);
          memcpy(address_to_copy, data->d_buf, section_size);
        }
    }

    if ((!scn ||  section_size == 0))  {
        return STATUS_UNKNOWN;
    }

    /* Create a section header */
    brig_module->section[section_id] = (hsa_ext_brig_section_header_t*) address_to_copy; 

    return STATUS_SUCCESS;
}

开发者ID:ashwinma，项目名称:CLOC，代码行数:33，代码来源:elf_utils.c

示例18: elf_strptr

char*
elf_strptr(Elf *elf, size_t section, size_t offset) {
    Elf_Scn *scn;
    Elf_Data *sd;

    if (!elf) {
	return NULL;
    }
    elf_assert(elf->e_magic == ELF_MAGIC);
    if (!(scn = elf_getscn(elf, section))) {
	return NULL;
    }
    if (scn->s_type != SHT_STRTAB) {
	seterr(ERROR_NOSTRTAB);
	return NULL;
    }
    if (offset >= 0 && offset < scn->s_size) {
	sd = NULL;
	while ((sd = elf_getdata(scn, sd))) {
	    if (sd->d_buf
	     && offset >= (size_t)sd->d_off
	     && offset < (size_t)sd->d_off + sd->d_size) {
		return (char*)sd->d_buf + (offset - sd->d_off);
	    }
	}
    }
    seterr(ERROR_BADSTROFF);
    return NULL;
}

开发者ID:rdeforest，项目名称:ColdStore，代码行数:29，代码来源:strptr.c

示例19: scngrp_read

static Dwarf *
scngrp_read (Dwarf *result, Elf *elf, GElf_Ehdr *ehdr, Dwarf_Cmd cmd,
	     Elf_Scn *scngrp)
{
  /* SCNGRP is the section descriptor for a section group which might
     contain debug sections.  */
  Elf_Data *data = elf_getdata (scngrp, NULL);
  if (data == NULL)
    {
      /* We cannot read the section content.  Fail!  */
      free (result);
      return NULL;
    }

  /* The content of the section is a number of 32-bit words which
     represent section indices.  The first word is a flag word.  */
  Elf32_Word *scnidx = (Elf32_Word *) data->d_buf;
  size_t cnt;
  for (cnt = 1; cnt * sizeof (Elf32_Word) <= data->d_size; ++cnt)
    {
      Elf_Scn *scn = elf_getscn (elf, scnidx[cnt]);
      if (scn == NULL)
	{
	  /* A section group refers to a non-existing section.  Should
	     never happen.  */
	  __libdw_seterrno (DWARF_E_INVALID_ELF);
	  free (result);
	  return NULL;
	}

      check_section (result, ehdr, scn, true);
    }

  return valid_p (result);
}

开发者ID:325116067，项目名称:semc-qsd8x50，代码行数:35，代码来源:dwarf_begin_elf.c

示例20: lookup_addr

/*
 * Look up the symbol at addr, returning a copy of the symbol and its name.
 */
static int
lookup_addr(Elf *e, Elf_Scn *scn, u_long stridx, uintptr_t off, uintptr_t addr,
    const char **name, GElf_Sym *symcopy)
{
	GElf_Sym sym;
	Elf_Data *data;
	const char *s;
	uint64_t rsym;
	int i;

	if ((data = elf_getdata(scn, NULL)) == NULL) {
		DPRINTFX("ERROR: elf_getdata() failed: %s", elf_errmsg(-1));
		return (1);
	}
	for (i = 0; gelf_getsym(data, i, &sym) != NULL; i++) {
		rsym = off + sym.st_value;
		if (addr >= rsym && addr < rsym + sym.st_size) {
			s = elf_strptr(e, stridx, sym.st_name);
			if (s != NULL) {
				*name = s;
				memcpy(symcopy, &sym, sizeof(*symcopy));
				/*
				 * DTrace expects the st_value to contain
				 * only the address relative to the start of
				 * the function.
				 */
				symcopy->st_value = rsym;
				return (0);
			}
		}
	}
	return (1);
}

开发者ID:sambuc，项目名称:netbsd，代码行数:36，代码来源:proc_sym.c

注：本文中的elf_getdata函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ elf_getdata函数代码示例

示例1: FindExportTrampolines

示例2: get_data_from_iterator

示例3: handle_dynamic_section

示例4: resolve_relocations

示例5: elf_getdata

示例6: radeon_elf_read

示例7: read_trap_data

示例8: handle_dynsym_section

示例9: extract_functions_internal

示例10: exec_getdata

示例11: find_symbol

示例12: dump_dynamic

示例13: get_scnbyname

示例14: load_script

示例15: ELF_ASSERT

示例16: elf_scn_getsymaddr_byname

示例17: extract_section_and_copy

示例18: elf_strptr

示例19: scngrp_read

示例20: lookup_addr

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