1 files changed, 2 insertions, 187 deletions

diff --git a/rtemstoolkit/elftoolchain/libelf/elf_begin.c b/rtemstoolkit/elftoolchain/libelf/elf_begin.c
index a6c9e4a..9f4f237 100644
--- a/rtemstoolkit/elftoolchain/libelf/elf_begin.c
+++ b/rtemstoolkit/elftoolchain/libelf/elf_begin.c
@@ -24,196 +24,11 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-
-#include <sys/types.h>
-#include <sys/errno.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-
-#include <ar.h>
-#include <assert.h>
-#include <ctype.h>
-#include <errno.h>
 #include <libelf.h>
-#include <stdlib.h>
-#include <unistd.h>
 
 #include "_libelf.h"
 
-LIBELF_VCSID("$Id: elf_begin.c 1923 2011-09-23 09:01:13Z jkoshy $");
-
-#define	_LIBELF_INITSIZE	(64*1024)
-
-/*
- * Read from a device file, pipe or socket.
- */
-static void *
-_libelf_read_special_file(int fd, size_t *fsz)
-{
-	ssize_t readsz;
-	size_t bufsz, datasz;
-	unsigned char *buf, *t;
-
-	datasz = 0;
-	readsz = 0;
-	bufsz = _LIBELF_INITSIZE;
-	if ((buf = malloc(bufsz)) == NULL)
-		goto resourceerror;
-
-	/*
-	 * Read data from the file descriptor till we reach EOF, or
-	 * till an error is encountered.
-	 */
-	do {
-		/* Check if we need to expand the data buffer. */
-		if (datasz == bufsz) {
-			bufsz *= 2;
-			if ((t = realloc(buf, bufsz)) == NULL)
-				goto resourceerror;
-			buf = t;
-		}
-
-		do {
-			readsz = bufsz - datasz;
-			t = buf + datasz;
-			if ((readsz = read(fd, t, readsz)) <= 0)
-				break;
-			datasz += readsz;
-		} while (datasz < bufsz);
-
-	} while (readsz > 0);
-
-	if (readsz < 0) {
-		LIBELF_SET_ERROR(IO, errno);
-		goto error;
-	}
-
-	assert(readsz == 0);
-
-	/*
-	 * Free up extra buffer space.
-	 */
-	if (bufsz > datasz) {
-		if (datasz > 0) {
-			if ((t = realloc(buf, datasz)) == NULL)
-				goto resourceerror;
-			buf = t;
-		} else {	/* Zero bytes read. */
-			LIBELF_SET_ERROR(ARGUMENT, 0);
-			free(buf);
-			buf = NULL;
-		}
-	}
-
-	*fsz = datasz;
-	return (buf);
-
-resourceerror:
-	LIBELF_SET_ERROR(RESOURCE, 0);
-error:
-	if (buf != NULL)
-		free(buf);
-	return (NULL);
-}
-
-
-static Elf *
-_libelf_open_object(int fd, Elf_Cmd c)
-{
-	Elf *e;
-	void *m;
-	mode_t mode;
-	size_t fsize;
-	struct stat sb;
-	unsigned int flags;
-
-	assert(c == ELF_C_READ || c == ELF_C_RDWR || c == ELF_C_WRITE);
-
-	if (fstat(fd, &sb) < 0) {
-		LIBELF_SET_ERROR(IO, errno);
-		return (NULL);
-	}
-
-	mode = sb.st_mode;
-	fsize = (size_t) sb.st_size;
-
-	/*
-	 * Reject unsupported file types.
-	 */
-	if (!S_ISREG(mode) && !S_ISCHR(mode) && !S_ISFIFO(mode) &&
-	    !S_ISSOCK(mode)) {
-		LIBELF_SET_ERROR(ARGUMENT, 0);
-		return (NULL);
-	}
-
-	/*
-	 * For ELF_C_WRITE mode, allocate and return a descriptor.
-	 */
-	if (c == ELF_C_WRITE) {
-		if ((e = _libelf_allocate_elf()) != NULL) {
-			_libelf_init_elf(e, ELF_K_ELF);
-			e->e_byteorder = LIBELF_PRIVATE(byteorder);
-			e->e_fd = fd;
-			e->e_cmd = c;
-			if (!S_ISREG(mode))
-				e->e_flags |= LIBELF_F_SPECIAL_FILE;
-		}
-
-		return (e);
-	}
-
-
-	/*
-	 * ELF_C_READ and ELF_C_RDWR mode.
-	 */
-	m = NULL;
-	flags = 0;
-	if (S_ISREG(mode)) {
-		/*
-		 * Always map regular files in with 'PROT_READ'
-		 * permissions.
-		 *
-		 * For objects opened in ELF_C_RDWR mode, when
-		 * elf_update(3) is called, we remove this mapping,
-		 * write file data out using write(2), and map the new
-		 * contents back.
-		 */
-		if ((m = mmap(NULL, fsize, PROT_READ, MAP_PRIVATE, fd,
-		    (off_t) 0)) == MAP_FAILED) {
-			LIBELF_SET_ERROR(IO, errno);
-			return (NULL);
-		}
-
-		flags = LIBELF_F_RAWFILE_MMAP;
-	} else if ((m = _libelf_read_special_file(fd, &fsize)) != NULL)
-		flags = LIBELF_F_RAWFILE_MALLOC | LIBELF_F_SPECIAL_FILE;
-	else
-		return (NULL);
-
-	if ((e = elf_memory(m, fsize)) == NULL) {
-		assert((flags & LIBELF_F_RAWFILE_MALLOC) ||
-		    (flags & LIBELF_F_RAWFILE_MMAP));
-		if (flags & LIBELF_F_RAWFILE_MMAP)
-			(void) munmap(m, fsize);
-		else
-			free(m);
-		return (NULL);
-	}
-
-	/* ar(1) archives aren't supported in RDWR mode. */
-	if (c == ELF_C_RDWR && e->e_kind == ELF_K_AR) {
-		(void) elf_end(e);
-		LIBELF_SET_ERROR(ARGUMENT, 0);
-		return (NULL);
-	}
-
-	e->e_flags |= flags;
-	e->e_fd = fd;
-	e->e_cmd = c;
-
-	return (e);
-}
+ELFTC_VCSID("$Id: elf_begin.c 2364 2011-12-28 17:55:25Z jkoshy $");
 
 Elf *
 elf_begin(int fd, Elf_Cmd c, Elf *a)
@@ -266,7 +81,7 @@ elf_begin(int fd, Elf_Cmd c, Elf *a)
 	}
 
 	if (a == NULL)
-		e = _libelf_open_object(fd, c);
+		e = _libelf_open_object(fd, c, 1);
 	else if (a->e_kind == ELF_K_AR)
 		e = _libelf_ar_open_member(a->e_fd, c, a);
 	else