int
dump_dynamic(Elf *elf)
{
Elf32_Dyn * dyn;
Elf32_Phdr * phdr;
Elf32_Ehdr * ehdr;
char * raw;
int i;
if ((phdr = elf32_getphdr(elf)) == NULL) {
fprintf(stderr, "phdr == NULL");
return (2);
}
if ((raw = elf_rawfile(elf, NULL)) == NULL) {
fprintf(stderr, "raw == NULL");
return (2);
}
for (;phdr->p_type != PT_DYNAMIC; phdr++)
;
dyn = (Elf32_Dyn *)(raw + phdr->p_offset);
i = 0;
while (dyn->d_tag != DT_NULL) {
printf("[%d] ", i);
if (dyn->d_tag < DT_NUM)
printf(" %s ", elf_dyn[dyn->d_tag]);
else if (dyn->d_tag >= DT_LOPROC &&
dyn->d_tag <= DT_LOPROC + DT_PROCNUM)
printf(" LOPROC ");
else if ((Elf32_Word)DT_VERSIONTAGIDX(dyn->d_tag) <
DT_VERSIONTAGNUM)
printf(" DT_VERSIONTAGNUM ");
else if ((Elf32_Word)DT_EXTRATAGIDX(dyn->d_tag) <
DT_EXTRANUM)
printf(" DT_EXTRANUM ");
else
printf(" b0rken ");
printf("(%#x)\n", i * sizeof(Elf32_Dyn));
dyn++;
i++;
}
return 0;
}
static void processProgHeaders(elfInfo *ei, GElf_Ehdr *ehdr)
{
for (size_t i = 0; i < ehdr->e_phnum; i++) {
GElf_Phdr mem;
GElf_Phdr *phdr = gelf_getphdr(ei->elf, i, &mem);
if (phdr && phdr->p_type == PT_INTERP) {
size_t maxsize;
char * filedata = elf_rawfile(ei->elf, &maxsize);
if (filedata && phdr->p_offset < maxsize) {
ei->interp = rstrdup(filedata + phdr->p_offset);
break;
}
}
}
}
/*
* Parse individual note entries inside a PT_NOTE segment.
*/
static void
handle_core_note(Elf *elf, GElf_Ehdr *elfhdr, GElf_Phdr *phdr,
char **cmd_line)
{
size_t max_size;
uint64_t raw_size;
GElf_Off offset;
static pid_t pid;
uintptr_t ver;
Elf32_Nhdr *nhdr, nhdr_l;
static int reg_pseudo = 0, reg2_pseudo = 0 /*, regxfp_pseudo = 0*/;
char buf[BUF_SIZE], *data, *name;
if (elf == NULL || elfhdr == NULL || phdr == NULL)
return;
data = elf_rawfile(elf, &max_size);
offset = phdr->p_offset;
while (data != NULL && offset < phdr->p_offset + phdr->p_filesz) {
nhdr = (Elf32_Nhdr *)(uintptr_t)((char*)data + offset);
memset(&nhdr_l, 0, sizeof(Elf32_Nhdr));
if (!xlatetom(elf, elfhdr, &nhdr->n_type, &nhdr_l.n_type,
ELF_T_WORD, sizeof(Elf32_Word)) ||
!xlatetom(elf, elfhdr, &nhdr->n_descsz, &nhdr_l.n_descsz,
ELF_T_WORD, sizeof(Elf32_Word)) ||
!xlatetom(elf, elfhdr, &nhdr->n_namesz, &nhdr_l.n_namesz,
ELF_T_WORD, sizeof(Elf32_Word)))
break;
name = (char *)((char *)nhdr + sizeof(Elf32_Nhdr));
switch (nhdr_l.n_type) {
case NT_PRSTATUS: {
raw_size = 0;
if (elfhdr->e_ident[EI_OSABI] == ELFOSABI_FREEBSD &&
nhdr_l.n_namesz == 0x8 &&
!strcmp(name,"FreeBSD")) {
if (elfhdr->e_ident[EI_CLASS] == ELFCLASS32) {
raw_size = (uint64_t)*((uint32_t *)
(uintptr_t)(name +
ELF_ALIGN((int32_t)
nhdr_l.n_namesz, 4) + 8));
ver = (uintptr_t)NOTE_OFFSET_32(nhdr,
nhdr_l.n_namesz,0);
if (*((int *)ver) == 1)
pid = PID32(nhdr,
nhdr_l.n_namesz, 24);
} else {
raw_size = *((uint64_t *)(uintptr_t)
(name + ELF_ALIGN((int32_t)
nhdr_l.n_namesz, 8) + 16));
ver = (uintptr_t)NOTE_OFFSET_64(nhdr,
nhdr_l.n_namesz,0);
if (*((int *)ver) == 1)
pid = PID64(nhdr,
nhdr_l.n_namesz, 40);
}
xlatetom(elf, elfhdr, &raw_size, &raw_size,
ELF_T_WORD, sizeof(uint64_t));
xlatetom(elf, elfhdr, &pid, &pid, ELF_T_WORD,
sizeof(pid_t));
}
if (raw_size != 0 && style == STYLE_SYSV) {
(void) snprintf(buf, BUF_SIZE, "%s/%d",
".reg", pid);
tbl_append();
tbl_print(buf, 0);
tbl_print_num(raw_size, radix, 1);
tbl_print_num(0, radix, 2);
if (!reg_pseudo) {
tbl_append();
tbl_print(".reg", 0);
tbl_print_num(raw_size, radix, 1);
tbl_print_num(0, radix, 2);
reg_pseudo = 1;
text_size_total += raw_size;
}
text_size_total += raw_size;
}
}
break;
case NT_FPREGSET: /* same as NT_PRFPREG */
if (style == STYLE_SYSV) {
(void) snprintf(buf, BUF_SIZE,
"%s/%d", ".reg2", pid);
tbl_append();
tbl_print(buf, 0);
tbl_print_num(nhdr_l.n_descsz, radix, 1);
tbl_print_num(0, radix, 2);
if (!reg2_pseudo) {
tbl_append();
tbl_print(".reg2", 0);
tbl_print_num(nhdr_l.n_descsz, radix,
1);
tbl_print_num(0, radix, 2);
reg2_pseudo = 1;
text_size_total += nhdr_l.n_descsz;
}
text_size_total += nhdr_l.n_descsz;
}
break;
#if 0
case NT_AUXV:
if (style == STYLE_SYSV) {
tbl_append();
tbl_print(".auxv", 0);
tbl_print_num(nhdr_l.n_descsz, radix, 1);
tbl_print_num(0, radix, 2);
text_size_total += nhdr_l.n_descsz;
}
break;
case NT_PRXFPREG:
if (style == STYLE_SYSV) {
(void) snprintf(buf, BUF_SIZE, "%s/%d",
".reg-xfp", pid);
tbl_append();
tbl_print(buf, 0);
tbl_print_num(nhdr_l.n_descsz, radix, 1);
tbl_print_num(0, radix, 2);
if (!regxfp_pseudo) {
tbl_append();
tbl_print(".reg-xfp", 0);
tbl_print_num(nhdr_l.n_descsz, radix,
1);
tbl_print_num(0, radix, 2);
regxfp_pseudo = 1;
text_size_total += nhdr_l.n_descsz;
}
text_size_total += nhdr_l.n_descsz;
}
break;
case NT_PSINFO:
#endif
case NT_PRPSINFO: {
/* FreeBSD 64-bit */
if (nhdr_l.n_descsz == 0x78 &&
!strcmp(name,"FreeBSD")) {
*cmd_line = strdup(NOTE_OFFSET_64(nhdr,
nhdr_l.n_namesz, 33));
/* FreeBSD 32-bit */
} else if (nhdr_l.n_descsz == 0x6c &&
!strcmp(name,"FreeBSD")) {
*cmd_line = strdup(NOTE_OFFSET_32(nhdr,
nhdr_l.n_namesz, 25));
}
/* Strip any trailing spaces */
if (*cmd_line != NULL) {
char *s;
s = *cmd_line + strlen(*cmd_line);
while (s > *cmd_line) {
if (*(s-1) != 0x20) break;
s--;
}
*s = 0;
}
break;
}
#if 0
case NT_PSTATUS:
case NT_LWPSTATUS:
#endif
default:
break;
}
NEXT_NOTE(elfhdr, nhdr_l.n_descsz, nhdr_l.n_namesz, offset);
}
}
int
main (int argc, char *argv[])
{
Elf *elf;
int fd;
GElf_Ehdr ehdr;
int cnt;
fd = open (argv[1], O_RDONLY);
if (fd == -1)
{
printf ("cannot open \"%s\": %s\n", argv[1], strerror (errno));
exit (1);
}
elf_version (EV_CURRENT);
elf = elf_begin (fd, ELF_C_READ, NULL);
if (elf == NULL)
{
printf ("cannot open ELF file: %s\n", elf_errmsg (-1));
exit (1);
}
if (elf_kind (elf) != ELF_K_ELF)
{
printf ("\"%s\" is not an ELF file\n", argv[1]);
exit (1);
}
if (gelf_getehdr (elf, &ehdr) == NULL)
{
printf ("cannot get the ELF header: %s\n", elf_errmsg (-1));
exit (1);
}
printf ("idx type %*s %*s %*s %*s %*s align flags\n",
gelf_getclass (elf) == ELFCLASS32 ? 9 : 17, "offset",
gelf_getclass (elf) == ELFCLASS32 ? 10 : 18, "vaddr",
gelf_getclass (elf) == ELFCLASS32 ? 10 : 18, "paddr",
gelf_getclass (elf) == ELFCLASS32 ? 9 : 12, "filesz",
gelf_getclass (elf) == ELFCLASS32 ? 9 : 12, "memsz");
for (cnt = 0; cnt < ehdr.e_phnum; ++cnt)
{
static const char *typenames[] =
{
[PT_NULL] = "NULL",
[PT_LOAD] = "LOAD",
[PT_DYNAMIC] = "DYNAMIC",
[PT_INTERP] = "INTERP",
[PT_NOTE] = "NOTE",
[PT_SHLIB] = "SHLIB",
[PT_PHDR] = "PHDR"
};
GElf_Phdr mem;
GElf_Phdr *phdr = gelf_getphdr (elf, cnt, &mem);
char buf[19];
const char *p_type = typenames[phdr->p_type];
/* If we don't know the name of the type we use the number value. */
if (phdr->p_type >= PT_NUM)
{
snprintf (buf, sizeof (buf), "%x", phdr->p_type);
p_type = buf;
}
printf ("%3d %-7s %#0*llx %#0*llx %#0*llx %#0*llx %#0*llx %#6llx ",
cnt, p_type,
gelf_getclass (elf) == ELFCLASS32 ? 9 : 17,
(unsigned long long int) phdr->p_offset,
gelf_getclass (elf) == ELFCLASS32 ? 10 : 18,
(unsigned long long int) phdr->p_vaddr,
gelf_getclass (elf) == ELFCLASS32 ? 10 : 18,
(unsigned long long int) phdr->p_paddr,
gelf_getclass (elf) == ELFCLASS32 ? 9 : 12,
(unsigned long long int) phdr->p_filesz,
gelf_getclass (elf) == ELFCLASS32 ? 9 : 12,
(unsigned long long int) phdr->p_memsz,
(unsigned long long int) phdr->p_align);
putc_unlocked ((phdr->p_flags & PF_X) ? 'X' : ' ', stdout);
putc_unlocked ((phdr->p_flags & PF_W) ? 'W' : ' ', stdout);
putc_unlocked ((phdr->p_flags & PF_R) ? 'R' : ' ', stdout);
putc_unlocked ('\n', stdout);
if (phdr->p_type == PT_INTERP)
{
/* We can show the user the name of the interpreter. */
size_t maxsize;
char *filedata = elf_rawfile (elf, &maxsize);
if (filedata != NULL && phdr->p_offset < maxsize)
printf ("\t[Requesting program interpreter: %s]\n",
filedata + phdr->p_offset);
}
}
if (elf_end (elf) != 0)
{
printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1));
exit (1);
}
return 0;
}
static const uint8_t *
parse_eh_frame_hdr (const uint8_t *hdr, size_t hdr_size, GElf_Addr hdr_vaddr,
const GElf_Ehdr *ehdr, GElf_Addr *eh_frame_vaddr,
size_t *table_entries, uint8_t *table_encoding)
{
const uint8_t *h = hdr;
if (*h++ != 1) /* version */
return (void *) -1l;
uint8_t eh_frame_ptr_encoding = *h++;
uint8_t fde_count_encoding = *h++;
uint8_t fde_table_encoding = *h++;
if (eh_frame_ptr_encoding == DW_EH_PE_omit)
return (void *) -1l;
/* Dummy used by read_encoded_value. */
Elf_Data_Scn dummy_cfi_hdr_data =
{
.d = { .d_buf = (void *) hdr, .d_size = hdr_size }
};
Dwarf_CFI dummy_cfi =
{
.e_ident = ehdr->e_ident,
.datarel = hdr_vaddr,
.frame_vaddr = hdr_vaddr,
.data = &dummy_cfi_hdr_data,
};
if (unlikely (read_encoded_value (&dummy_cfi, eh_frame_ptr_encoding, &h,
eh_frame_vaddr)))
return (void *) -1l;
if (fde_count_encoding != DW_EH_PE_omit)
{
Dwarf_Word fde_count;
if (unlikely (read_encoded_value (&dummy_cfi, fde_count_encoding, &h,
&fde_count)))
return (void *) -1l;
if (fde_count != 0 && (size_t) fde_count == fde_count
&& fde_table_encoding != DW_EH_PE_omit
&& (fde_table_encoding &~ DW_EH_PE_signed) != DW_EH_PE_uleb128)
{
*table_entries = fde_count;
*table_encoding = fde_table_encoding;
return h;
}
}
return NULL;
}
static Dwarf_CFI *
getcfi_gnu_eh_frame (Elf *elf, const GElf_Ehdr *ehdr, const GElf_Phdr *phdr)
{
if (unlikely (phdr->p_filesz < 4))
goto invalid;
Elf_Data *data = elf_getdata_rawchunk (elf, phdr->p_offset, phdr->p_filesz,
ELF_T_BYTE);
if (data == NULL)
{
invalid_hdr:
invalid:
/* XXX might be read error or corrupt phdr */
__libdw_seterrno (DWARF_E_INVALID_CFI);
return NULL;
}
Dwarf_Addr eh_frame_ptr;
size_t search_table_entries;
uint8_t search_table_encoding;
const uint8_t *search_table = parse_eh_frame_hdr (data->d_buf, phdr->p_filesz,
phdr->p_vaddr, ehdr,
&eh_frame_ptr,
&search_table_entries,
&search_table_encoding);
if (search_table == (void *) -1l)
goto invalid_hdr;
Dwarf_Off eh_frame_offset = eh_frame_ptr - phdr->p_vaddr + phdr->p_offset;
Dwarf_Word eh_frame_size = 0;
/* XXX we have no way without section headers to know the size
of the .eh_frame data. Calculate the largest it might possibly be.
This won't be wasteful if the file is already mmap'd, but if it isn't
it might be quite excessive. */
size_t filesize;
if (elf_rawfile (elf, &filesize) != NULL)
eh_frame_size = filesize - eh_frame_offset;
data = elf_getdata_rawchunk (elf, eh_frame_offset, eh_frame_size, ELF_T_BYTE);
if (data == NULL)
{
__libdw_seterrno (DWARF_E_INVALID_ELF); /* XXX might be read error */
return NULL;
}
Dwarf_CFI *cfi = allocate_cfi (elf, eh_frame_ptr);
if (cfi != NULL)
{
cfi->data = (Elf_Data_Scn *) data;
if (search_table != NULL)
{
cfi->search_table = search_table;
cfi->search_table_vaddr = phdr->p_vaddr;
cfi->search_table_encoding = search_table_encoding;
cfi->search_table_entries = search_table_entries;
}
}
return cfi;
}
/* Search the phdrs for PT_GNU_EH_FRAME. */
static Dwarf_CFI *
getcfi_phdr (Elf *elf, const GElf_Ehdr *ehdr)
{
size_t phnum;
if (unlikely (elf_getphdrnum (elf, &phnum) != 0))
return NULL;
for (size_t i = 0; i < phnum; ++i)
{
GElf_Phdr phdr_mem;
GElf_Phdr *phdr = gelf_getphdr (elf, i, &phdr_mem);
if (unlikely (phdr == NULL))
return NULL;
if (phdr->p_type == PT_GNU_EH_FRAME)
return getcfi_gnu_eh_frame (elf, ehdr, phdr);
}
__libdw_seterrno (DWARF_E_NO_DWARF);
return NULL;
}
static int
dump_requires(char *filename, int fd)
{
elf_version(EV_CURRENT);
Elf *elf = elf_begin(fd, ELF_C_READ_MMAP, NULL);
if (!elf) {
fprintf(stderr, "Could not read \"%s\": %s\n", filename,
elf_errmsg(elf_errno()));
return -1;
}
size_t shstrndx = -1;
int rc = elf_getshdrstrndx(elf, &shstrndx);
int scn_no = 0;
Elf_Scn *scn = NULL;
do {
scn = elf_getscn(elf, ++scn_no);
if (!scn)
break;
int rc;
GElf_Shdr *shdrp, shdr;
shdrp = gelf_getshdr(scn, &shdr);
if (!shdrp) {
fprintf(stderr, "Malformed ELF file \"%s\": %s\n",
filename, elf_errmsg(elf_errno()));
elf_end(elf);
return -1;
}
char *name = elf_strptr(elf, shstrndx, shdr.sh_name);
if (!strcmp(name, ".plugin.filenames")) {
Elf_Data *datap;
datap = elf_rawdata(scn, NULL);
if (!datap) {
fprintf(stderr, "ELF Error: %s\n",
elf_errmsg(elf_errno()));
elf_end(elf);
return -1;
}
size_t fsize;
char *rawfile = elf_rawfile(elf, &fsize);
char *scndata = rawfile + shdr.sh_offset + datap->d_off;
plugin_callback_fn cb;
rc = get_callback_function(filename, &cb);
if (rc < 0) {
fprintf(stderr, "could not get callback\n");
elf_end(elf);
return rc;
}
rc = cb(filename, scndata, datap->d_size);
elf_end(elf);
return rc;
}
} while (scn != NULL);
}
void
pmcstat_image_get_elf_params(struct pmcstat_image *image,
struct pmcstat_args *args)
{
int fd;
size_t i, nph, nsh;
const char *path, *elfbase;
char *p, *endp;
uintfptr_t minva, maxva;
Elf *e;
Elf_Scn *scn;
GElf_Ehdr eh;
GElf_Phdr ph;
GElf_Shdr sh;
enum pmcstat_image_type image_type;
char buffer[PATH_MAX];
assert(image->pi_type == PMCSTAT_IMAGE_UNKNOWN);
image->pi_start = minva = ~(uintfptr_t) 0;
image->pi_end = maxva = (uintfptr_t) 0;
image->pi_type = image_type = PMCSTAT_IMAGE_INDETERMINABLE;
image->pi_isdynamic = 0;
image->pi_dynlinkerpath = NULL;
image->pi_vaddr = 0;
path = pmcstat_string_unintern(image->pi_execpath);
assert(path != NULL);
/*
* Look for kernel modules under FSROOT/KERNELPATH/NAME,
* and user mode executable objects under FSROOT/PATHNAME.
*/
if (image->pi_iskernelmodule)
(void) snprintf(buffer, sizeof(buffer), "%s%s/%s",
args->pa_fsroot, args->pa_kernel, path);
else
(void) snprintf(buffer, sizeof(buffer), "%s%s",
args->pa_fsroot, path);
e = NULL;
if ((fd = open(buffer, O_RDONLY, 0)) < 0) {
warnx("WARNING: Cannot open \"%s\".",
buffer);
goto done;
}
if (elf_version(EV_CURRENT) == EV_NONE) {
warnx("WARNING: failed to init elf\n");
goto done;
}
if ((e = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
warnx("WARNING: Cannot read \"%s\".",
buffer);
goto done;
}
if (elf_kind(e) != ELF_K_ELF) {
if (args->pa_verbosity >= 2)
warnx("WARNING: Cannot determine the type of \"%s\".",
buffer);
goto done;
}
if (gelf_getehdr(e, &eh) != &eh) {
warnx(
"WARNING: Cannot retrieve the ELF Header for \"%s\": %s.",
buffer, elf_errmsg(-1));
goto done;
}
if (eh.e_type != ET_EXEC && eh.e_type != ET_DYN &&
!(image->pi_iskernelmodule && eh.e_type == ET_REL)) {
warnx("WARNING: \"%s\" is of an unsupported ELF type.",
buffer);
goto done;
}
image_type = eh.e_ident[EI_CLASS] == ELFCLASS32 ?
PMCSTAT_IMAGE_ELF32 : PMCSTAT_IMAGE_ELF64;
/*
* Determine the virtual address where an executable would be
* loaded. Additionally, for dynamically linked executables,
* save the pathname to the runtime linker.
*/
if (eh.e_type == ET_EXEC) {
if (elf_getphnum(e, &nph) == 0) {
warnx(
"WARNING: Could not determine the number of program headers in \"%s\": %s.",
buffer,
elf_errmsg(-1));
goto done;
}
for (i = 0; i < eh.e_phnum; i++) {
if (gelf_getphdr(e, i, &ph) != &ph) {
warnx(
"WARNING: Retrieval of PHDR entry #%ju in \"%s\" failed: %s.",
(uintmax_t) i, buffer, elf_errmsg(-1));
goto done;
}
switch (ph.p_type) {
case PT_DYNAMIC:
image->pi_isdynamic = 1;
break;
case PT_INTERP:
if ((elfbase = elf_rawfile(e, NULL)) == NULL) {
warnx(
"WARNING: Cannot retrieve the interpreter for \"%s\": %s.",
buffer, elf_errmsg(-1));
goto done;
}
image->pi_dynlinkerpath =
pmcstat_string_intern(elfbase +
ph.p_offset);
break;
case PT_LOAD:
if ((ph.p_flags & PF_X) != 0 &&
(ph.p_offset & (-ph.p_align)) == 0)
image->pi_vaddr = ph.p_vaddr & (-ph.p_align);
break;
}
}
}
/*
* Get the min and max VA associated with this ELF object.
*/
if (elf_getshnum(e, &nsh) == 0) {
warnx(
"WARNING: Could not determine the number of sections for \"%s\": %s.",
buffer, elf_errmsg(-1));
goto done;
}
for (i = 0; i < nsh; i++) {
if ((scn = elf_getscn(e, i)) == NULL ||
gelf_getshdr(scn, &sh) != &sh) {
warnx(
"WARNING: Could not retrieve section header #%ju in \"%s\": %s.",
(uintmax_t) i, buffer, elf_errmsg(-1));
goto done;
}
if (sh.sh_flags & SHF_EXECINSTR) {
minva = min(minva, sh.sh_addr);
maxva = max(maxva, sh.sh_addr + sh.sh_size);
}
if (sh.sh_type == SHT_SYMTAB || sh.sh_type == SHT_DYNSYM)
pmcstat_image_add_symbols(image, e, scn, &sh);
}
image->pi_start = minva;
image->pi_end = maxva;
image->pi_type = image_type;
image->pi_fullpath = pmcstat_string_intern(buffer);
/* Build display name
*/
endp = buffer;
for (p = buffer; *p; p++)
if (*p == '/')
endp = p+1;
image->pi_name = pmcstat_string_intern(endp);
done:
(void) elf_end(e);
if (fd >= 0)
(void) close(fd);
return;
}
void
main(int argc, char ** argv)
{
#if !defined(__osf__)
Elf32_Ehdr * ehdr;
Elf32_Phdr * phdr;
Elf * elf;
Elf * elf2;
int fd,fd2;
int exf = 0;
int i;
size_t flen = 0;
size_t flen2 = 0;
time_t t;
if (of == NULL) {
of = stdout;
}
time(&t);
if (argc != 4) {
fprintf(of,"Core analysis %s needs three arguments: executable, core file, dest file\n",
reldate);
exit(1);
}
ofname = argv[3];
of = fopen(ofname,"a");
fprintf(of,"Core analysis %s. Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.\nCopyright (C) 2005 Red Hat, Inc.\nAll rights reserved.\nCurrently %sOpening %s %s\n",reldate,ctime(&t),argv[1],argv[2]);
if ((fd2 = open(argv[1], O_RDONLY)) == -1) {
perror(argv[1]);
exit(1);
}
(void) elf_version(EV_CURRENT);
/* Obtain the ELF descriptor */
if ((elf2 = elf_begin(fd2, ELF_C_READ, NULL)) == NULL)
failure("beginining");
if ((erf2 = elf_rawfile(elf2,&flen2)) == NULL) {
failure("elf_rawfile");
}
/* Obtain the .shstrtab data buffer */
if ((ehdr = elf32_getehdr(elf2)) == NULL) {
failure("reading header");
}
if (ehdr->e_type == ET_CORE) {
fprintf(of,"Executable file should be given as the first argument.\n");
exit(1);
}
if (ehdr->e_machine == EM_SPARC ||
ehdr->e_machine == EM_SPARC32PLUS ||
ehdr->e_machine == EM_SPARCV9) {
fprintf(of,"architecture is SPARC\n");
exf = EM_SPARC;
} else if (ehdr->e_machine == EM_386) {
fprintf(of,"architecture is x86\n");
exf = ehdr->e_machine;
} else {
fprintf(of,"unknown architecture %d\n",ehdr->e_machine);
exit(1);
}
if (ehdr->e_phnum == 0) {
fprintf(of,"no program header in program file\n");
exit(1);
}
load_segments(elf2,ehdr->e_phnum,erf2,flen2,0);
/* Open the input file */
if ((fd = open(argv[2], O_RDONLY)) == -1) {
perror(argv[2]);
exit(1);
}
/* Obtain the ELF descriptor */
if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL)
failure("beginining");
if ((erf = elf_rawfile(elf,&flen)) == NULL) {
failure("elf_rawfile");
}
/* Obtain the .shstrtab data buffer */
if ((ehdr = elf32_getehdr(elf)) == NULL) {
failure("reading header");
}
if (ehdr->e_type != ET_CORE) {
fprintf(of,"second argument is ELF but not a core file\n");
exit(1);
}
if (ehdr->e_machine != exf) {
fprintf(of,"Architecture mismatch between executable and core file.\n");
exit(1);
}
if (ehdr->e_phnum == 0) {
fprintf(of,"no program header in core file\n");
exit(1);
}
load_segments(elf,ehdr->e_phnum,erf,flen,1);
#ifdef notanymore
fprintf(of,"Seeking debug information in core file.\n");
phdr = elf32_getphdr(elf);
for (i = 0; i < ehdr->e_phnum; i++) {
if (phdr[i].p_type == PT_LOAD) {
if (phdr[i].p_offset && phdr[i].p_filesz) {
if (phdr[i].p_offset + phdr[i].p_filesz > flen) {
continue;
}
if (seek_debug(erf,phdr[i].p_offset,phdr[i].p_filesz)) {
break;
}
}
}
}
#endif
if (of != stdout) {
fclose(of);
}
try_adb(argv[1],argv[2]);
#endif
}
