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-rw-r--r--gcc-4.7/libiberty/simple-object.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/gcc-4.7/libiberty/simple-object.c b/gcc-4.7/libiberty/simple-object.c
deleted file mode 100644
index d000cfc08..000000000
--- a/gcc-4.7/libiberty/simple-object.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/* simple-object.c -- simple routines to read and write object files.
- Copyright 2010 Free Software Foundation, Inc.
- Written by Ian Lance Taylor, Google.
-
-This program is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
-later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, 51 Franklin Street - Fifth Floor,
-Boston, MA 02110-1301, USA. */
-
-#include "config.h"
-#include "libiberty.h"
-#include "simple-object.h"
-
-#include <errno.h>
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-#endif
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-
-#ifdef HAVE_INTTYPES_H
-#include <inttypes.h>
-#endif
-
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-
-#include "simple-object-common.h"
-
-/* The known object file formats. */
-
-static const struct simple_object_functions * const format_functions[] =
-{
- &simple_object_elf_functions,
- &simple_object_mach_o_functions,
- &simple_object_coff_functions
-};
-
-/* Read data from a file using the simple_object error reporting
- conventions. */
-
-int
-simple_object_internal_read (int descriptor, off_t offset,
- unsigned char *buffer, size_t size,
- const char **errmsg, int *err)
-{
- ssize_t got;
-
- if (lseek (descriptor, offset, SEEK_SET) < 0)
- {
- *errmsg = "lseek";
- *err = errno;
- return 0;
- }
-
- got = read (descriptor, buffer, size);
- if (got < 0)
- {
- *errmsg = "read";
- *err = errno;
- return 0;
- }
-
- if ((size_t) got < size)
- {
- *errmsg = "file too short";
- *err = 0;
- return 0;
- }
-
- return 1;
-}
-
-/* Write data to a file using the simple_object error reporting
- conventions. */
-
-int
-simple_object_internal_write (int descriptor, off_t offset,
- const unsigned char *buffer, size_t size,
- const char **errmsg, int *err)
-{
- ssize_t wrote;
-
- if (lseek (descriptor, offset, SEEK_SET) < 0)
- {
- *errmsg = "lseek";
- *err = errno;
- return 0;
- }
-
- wrote = write (descriptor, buffer, size);
- if (wrote < 0)
- {
- *errmsg = "write";
- *err = errno;
- return 0;
- }
-
- if ((size_t) wrote < size)
- {
- *errmsg = "short write";
- *err = 0;
- return 0;
- }
-
- return 1;
-}
-
-/* Open for read. */
-
-simple_object_read *
-simple_object_start_read (int descriptor, off_t offset,
- const char *segment_name, const char **errmsg,
- int *err)
-{
- unsigned char header[SIMPLE_OBJECT_MATCH_HEADER_LEN];
- size_t len, i;
-
- if (!simple_object_internal_read (descriptor, offset, header,
- SIMPLE_OBJECT_MATCH_HEADER_LEN,
- errmsg, err))
- return NULL;
-
- len = sizeof (format_functions) / sizeof (format_functions[0]);
- for (i = 0; i < len; ++i)
- {
- void *data;
-
- data = format_functions[i]->match (header, descriptor, offset,
- segment_name, errmsg, err);
- if (data != NULL)
- {
- simple_object_read *ret;
-
- ret = XNEW (simple_object_read);
- ret->descriptor = descriptor;
- ret->offset = offset;
- ret->functions = format_functions[i];
- ret->data = data;
- return ret;
- }
- }
-
- *errmsg = "file not recognized";
- *err = 0;
- return NULL;
-}
-
-/* Find all sections. */
-
-const char *
-simple_object_find_sections (simple_object_read *sobj,
- int (*pfn) (void *, const char *, off_t, off_t),
- void *data,
- int *err)
-{
- return sobj->functions->find_sections (sobj, pfn, data, err);
-}
-
-/* Internal data passed to find_one_section. */
-
-struct find_one_section_data
-{
- /* The section we are looking for. */
- const char *name;
- /* Where to store the section offset. */
- off_t *offset;
- /* Where to store the section length. */
- off_t *length;
- /* Set if the name is found. */
- int found;
-};
-
-/* Internal function passed to find_sections. */
-
-static int
-find_one_section (void *data, const char *name, off_t offset, off_t length)
-{
- struct find_one_section_data *fosd = (struct find_one_section_data *) data;
-
- if (strcmp (name, fosd->name) != 0)
- return 1;
-
- *fosd->offset = offset;
- *fosd->length = length;
- fosd->found = 1;
-
- /* Stop iteration. */
- return 0;
-}
-
-/* Find a section. */
-
-int
-simple_object_find_section (simple_object_read *sobj, const char *name,
- off_t *offset, off_t *length,
- const char **errmsg, int *err)
-{
- struct find_one_section_data fosd;
-
- fosd.name = name;
- fosd.offset = offset;
- fosd.length = length;
- fosd.found = 0;
-
- *errmsg = simple_object_find_sections (sobj, find_one_section,
- (void *) &fosd, err);
- if (*errmsg != NULL)
- return 0;
- if (!fosd.found)
- return 0;
- return 1;
-}
-
-/* Fetch attributes. */
-
-simple_object_attributes *
-simple_object_fetch_attributes (simple_object_read *sobj, const char **errmsg,
- int *err)
-{
- void *data;
- simple_object_attributes *ret;
-
- data = sobj->functions->fetch_attributes (sobj, errmsg, err);
- if (data == NULL)
- return NULL;
- ret = XNEW (simple_object_attributes);
- ret->functions = sobj->functions;
- ret->data = data;
- return ret;
-}
-
-/* Release an simple_object_read. */
-
-void
-simple_object_release_read (simple_object_read *sobj)
-{
- sobj->functions->release_read (sobj->data);
- XDELETE (sobj);
-}
-
-/* Merge attributes. */
-
-const char *
-simple_object_attributes_merge (simple_object_attributes *to,
- simple_object_attributes *from,
- int *err)
-{
- if (to->functions != from->functions)
- {
- *err = 0;
- return "different object file format";
- }
- return to->functions->attributes_merge (to->data, from->data, err);
-}
-
-/* Release an attributes structure. */
-
-void
-simple_object_release_attributes (simple_object_attributes *attrs)
-{
- attrs->functions->release_attributes (attrs->data);
- XDELETE (attrs);
-}
-
-/* Start creating an object file. */
-
-simple_object_write *
-simple_object_start_write (simple_object_attributes *attrs,
- const char *segment_name, const char **errmsg,
- int *err)
-{
- void *data;
- simple_object_write *ret;
-
- data = attrs->functions->start_write (attrs->data, errmsg, err);
- if (data == NULL)
- return NULL;
- ret = XNEW (simple_object_write);
- ret->functions = attrs->functions;
- ret->segment_name = xstrdup (segment_name);
- ret->sections = NULL;
- ret->last_section = NULL;
- ret->data = data;
- return ret;
-}
-
-/* Start creating a section. */
-
-simple_object_write_section *
-simple_object_write_create_section (simple_object_write *sobj, const char *name,
- unsigned int align,
- const char **errmsg ATTRIBUTE_UNUSED,
- int *err ATTRIBUTE_UNUSED)
-{
- simple_object_write_section *ret;
-
- ret = XNEW (simple_object_write_section);
- ret->next = NULL;
- ret->name = xstrdup (name);
- ret->align = align;
- ret->buffers = NULL;
- ret->last_buffer = NULL;
-
- if (sobj->last_section == NULL)
- {
- sobj->sections = ret;
- sobj->last_section = ret;
- }
- else
- {
- sobj->last_section->next = ret;
- sobj->last_section = ret;
- }
-
- return ret;
-}
-
-/* Add data to a section. */
-
-const char *
-simple_object_write_add_data (simple_object_write *sobj ATTRIBUTE_UNUSED,
- simple_object_write_section *section,
- const void *buffer,
- size_t size, int copy,
- int *err ATTRIBUTE_UNUSED)
-{
- struct simple_object_write_section_buffer *wsb;
-
- wsb = XNEW (struct simple_object_write_section_buffer);
- wsb->next = NULL;
- wsb->size = size;
-
- if (!copy)
- {
- wsb->buffer = buffer;
- wsb->free_buffer = NULL;
- }
- else
- {
- wsb->free_buffer = (void *) XNEWVEC (char, size);
- memcpy (wsb->free_buffer, buffer, size);
- wsb->buffer = wsb->free_buffer;
- }
-
- if (section->last_buffer == NULL)
- {
- section->buffers = wsb;
- section->last_buffer = wsb;
- }
- else
- {
- section->last_buffer->next = wsb;
- section->last_buffer = wsb;
- }
-
- return NULL;
-}
-
-/* Write the complete object file. */
-
-const char *
-simple_object_write_to_file (simple_object_write *sobj, int descriptor,
- int *err)
-{
- return sobj->functions->write_to_file (sobj, descriptor, err);
-}
-
-/* Release an simple_object_write. */
-
-void
-simple_object_release_write (simple_object_write *sobj)
-{
- simple_object_write_section *section;
-
- free (sobj->segment_name);
-
- section = sobj->sections;
- while (section != NULL)
- {
- struct simple_object_write_section_buffer *buffer;
- simple_object_write_section *next_section;
-
- buffer = section->buffers;
- while (buffer != NULL)
- {
- struct simple_object_write_section_buffer *next_buffer;
-
- if (buffer->free_buffer != NULL)
- XDELETEVEC (buffer->free_buffer);
- next_buffer = buffer->next;
- XDELETE (buffer);
- buffer = next_buffer;
- }
-
- next_section = section->next;
- free (section->name);
- XDELETE (section);
- section = next_section;
- }
-
- sobj->functions->release_write (sobj->data);
- XDELETE (sobj);
-}
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