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-rw-r--r--utils/readelf.c94
1 files changed, 47 insertions, 47 deletions
diff --git a/utils/readelf.c b/utils/readelf.c
index fcdd510ae..c7516ef4f 100644
--- a/utils/readelf.c
+++ b/utils/readelf.c
@@ -39,7 +39,7 @@
#include "bswap.h"
#include "elf.h"
-
+#include "link.h"
int byteswap;
inline uint32_t byteswap32_to_host(uint32_t value)
@@ -50,25 +50,38 @@ inline uint32_t byteswap32_to_host(uint32_t value)
return(value);
}
}
+inline uint64_t byteswap64_to_host(uint64_t value)
+{
+ if (byteswap==1) {
+ return(bswap_64(value));
+ } else {
+ return(value);
+ }
+}
+#if __WORDSIZE == 64
+# define byteswap_to_host(x) byteswap64_to_host(x)
+#else
+# define byteswap_to_host(x) byteswap32_to_host(x)
+#endif
-Elf32_Shdr * elf_find_section_type( int key, Elf32_Ehdr *ehdr)
+ElfW(Shdr) * elf_find_section_type( int key, ElfW(Ehdr) *ehdr)
{
int j;
- Elf32_Shdr *shdr = (Elf32_Shdr *)(ehdr->e_shoff + (char *)ehdr);
+ ElfW(Shdr) *shdr = (ElfW(Shdr) *)(ehdr->e_shoff + (char *)ehdr);
for (j = ehdr->e_shnum; --j>=0; ++shdr) {
- if (key==(int)byteswap32_to_host(shdr->sh_type)) {
+ if (key==byteswap32_to_host(shdr->sh_type)) {
return shdr;
}
}
return NULL;
}
-Elf32_Phdr * elf_find_phdr_type( int type, Elf32_Ehdr *ehdr)
+ElfW(Phdr) * elf_find_phdr_type( int type, ElfW(Ehdr) *ehdr)
{
int j;
- Elf32_Phdr *phdr = (Elf32_Phdr *)(ehdr->e_phoff + (char *)ehdr);
+ ElfW(Phdr) *phdr = (ElfW(Phdr) *)(ehdr->e_phoff + (char *)ehdr);
for (j = ehdr->e_phnum; --j>=0; ++phdr) {
- if (type==(int)byteswap32_to_host(phdr->p_type)) {
+ if (type==byteswap32_to_host(phdr->p_type)) {
return phdr;
}
}
@@ -76,26 +89,27 @@ Elf32_Phdr * elf_find_phdr_type( int type, Elf32_Ehdr *ehdr)
}
/* Returns value if return_val==1, ptr otherwise */
-void * elf_find_dynamic(int const key, Elf32_Dyn *dynp,
- Elf32_Ehdr *ehdr, int return_val)
+void * elf_find_dynamic(int const key, ElfW(Dyn) *dynp,
+ ElfW(Ehdr) *ehdr, int return_val)
{
- Elf32_Phdr *pt_text = elf_find_phdr_type(PT_LOAD, ehdr);
- unsigned tx_reloc = byteswap32_to_host(pt_text->p_vaddr) - byteswap32_to_host(pt_text->p_offset);
- for (; DT_NULL!=byteswap32_to_host(dynp->d_tag); ++dynp) {
- if (key == (int)byteswap32_to_host(dynp->d_tag)) {
+ ElfW(Phdr) *pt_text = elf_find_phdr_type(PT_LOAD, ehdr);
+ ElfW(Addr) tx_reloc = byteswap_to_host(pt_text->p_vaddr) - byteswap_to_host(pt_text->p_offset);
+ for (; DT_NULL!=byteswap_to_host(dynp->d_tag); ++dynp) {
+ if (key == byteswap_to_host(dynp->d_tag)) {
if (return_val == 1)
- return (void *)(intptr_t)byteswap32_to_host(dynp->d_un.d_val);
+ return (void *)byteswap_to_host(dynp->d_un.d_val);
else
- return (void *)(byteswap32_to_host(dynp->d_un.d_val) - tx_reloc + (char *)ehdr );
+ return (void *)(byteswap_to_host(dynp->d_un.d_val) - tx_reloc + (char *)ehdr );
}
}
return NULL;
}
-int check_elf_header(Elf32_Ehdr *const ehdr)
+int check_elf_header(ElfW(Ehdr) *const ehdr)
{
if (! ehdr || strncmp((void *)ehdr, ELFMAG, SELFMAG) != 0 ||
- ehdr->e_ident[EI_CLASS] != ELFCLASS32 ||
+ (ehdr->e_ident[EI_CLASS] != ELFCLASS32 &&
+ ehdr->e_ident[EI_CLASS] != ELFCLASS64) ||
ehdr->e_ident[EI_VERSION] != EV_CURRENT)
{
return 1;
@@ -119,8 +133,8 @@ int check_elf_header(Elf32_Ehdr *const ehdr)
if (byteswap==1) {
ehdr->e_type=bswap_16(ehdr->e_type);
ehdr->e_machine=bswap_16(ehdr->e_machine);
- ehdr->e_phoff=bswap_32(ehdr->e_phoff);
- ehdr->e_shoff=bswap_32(ehdr->e_shoff);
+ ehdr->e_phoff=byteswap_to_host(ehdr->e_phoff);
+ ehdr->e_shoff=byteswap_to_host(ehdr->e_shoff);
ehdr->e_phnum=bswap_16(ehdr->e_phnum);
ehdr->e_shnum=bswap_16(ehdr->e_shnum);
}
@@ -128,21 +142,7 @@ int check_elf_header(Elf32_Ehdr *const ehdr)
}
-#define ELFOSABI_NONE 0 /* UNIX System V ABI */
-#define ELFOSABI_HPUX 1 /* HP-UX operating system */
-#define ELFOSABI_NETBSD 2 /* NetBSD */
-#define ELFOSABI_LINUX 3 /* GNU/Linux */
-#define ELFOSABI_HURD 4 /* GNU/Hurd */
-#define ELFOSABI_SOLARIS 6 /* Solaris */
-#define ELFOSABI_AIX 7 /* AIX */
-#define ELFOSABI_IRIX 8 /* IRIX */
-#define ELFOSABI_FREEBSD 9 /* FreeBSD */
-#define ELFOSABI_TRU64 10 /* TRU64 UNIX */
-#define ELFOSABI_MODESTO 11 /* Novell Modesto */
-#define ELFOSABI_OPENBSD 12 /* OpenBSD */
-#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
-#define ELFOSABI_ARM 97 /* ARM */
-static void describe_elf_hdr(Elf32_Ehdr* ehdr)
+static void describe_elf_hdr(ElfW(Ehdr)* ehdr)
{
char *tmp, *tmp1;
@@ -275,24 +275,24 @@ static void describe_elf_hdr(Elf32_Ehdr* ehdr)
printf( "ABI Version:\t%d\n", ehdr->e_ident[EI_ABIVERSION]);
}
-static void list_needed_libraries(Elf32_Dyn* dynamic, char *strtab)
+static void list_needed_libraries(ElfW(Dyn)* dynamic, char *strtab)
{
- Elf32_Dyn *dyns;
+ ElfW(Dyn) *dyns;
printf("Dependancies:\n");
- for (dyns=dynamic; byteswap32_to_host(dyns->d_tag)!=DT_NULL; ++dyns) {
+ for (dyns=dynamic; byteswap_to_host(dyns->d_tag)!=DT_NULL; ++dyns) {
if (dyns->d_tag == DT_NEEDED) {
- printf("\t%s\n", (char*)strtab + byteswap32_to_host(dyns->d_un.d_val));
+ printf("\t%s\n", (char*)strtab + byteswap_to_host(dyns->d_un.d_val));
}
}
}
-static void describe_elf_interpreter(Elf32_Ehdr* ehdr)
+static void describe_elf_interpreter(ElfW(Ehdr)* ehdr)
{
- Elf32_Phdr *phdr;
+ ElfW(Phdr) *phdr;
phdr = elf_find_phdr_type(PT_INTERP, ehdr);
if (phdr) {
- printf("Interpreter:\t%s\n", (char*)ehdr + byteswap32_to_host(phdr->p_offset));
+ printf("Interpreter:\t%s\n", (char*)ehdr + byteswap_to_host(phdr->p_offset));
}
}
@@ -303,9 +303,9 @@ int main( int argc, char** argv)
char *thefilename = argv[1];
FILE *thefile;
struct stat statbuf;
- Elf32_Ehdr *ehdr = 0;
- Elf32_Shdr *dynsec;
- Elf32_Dyn *dynamic;
+ ElfW(Ehdr) *ehdr = 0;
+ ElfW(Shdr) *dynsec;
+ ElfW(Dyn) *dynamic;
if (argc < 2 || !thefilename) {
fprintf(stderr, "No filename specified.\n");
@@ -320,11 +320,11 @@ int main( int argc, char** argv)
exit(EXIT_FAILURE);
}
- if ((size_t)statbuf.st_size < sizeof(Elf32_Ehdr))
+ if ((size_t)statbuf.st_size < sizeof(ElfW(Ehdr)))
goto foo;
/* mmap the file to make reading stuff from it effortless */
- ehdr = (Elf32_Ehdr *)mmap(0, statbuf.st_size,
+ ehdr = (ElfW(Ehdr) *)mmap(0, statbuf.st_size,
PROT_READ|PROT_WRITE, MAP_PRIVATE, fileno(thefile), 0);
foo:
@@ -338,7 +338,7 @@ foo:
dynsec = elf_find_section_type(SHT_DYNAMIC, ehdr);
if (dynsec) {
- dynamic = (Elf32_Dyn*)(byteswap32_to_host(dynsec->sh_offset) + (intptr_t)ehdr);
+ dynamic = (ElfW(Dyn)*)(byteswap_to_host(dynsec->sh_offset) + (char *)ehdr);
dynstr = (char *)elf_find_dynamic(DT_STRTAB, dynamic, ehdr, 0);
list_needed_libraries(dynamic, dynstr);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 14:23:55 +0000