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author | cvs2svn <> | 2011-12-08 20:47:29 +0000 |
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committer | cvs2svn <> | 2011-12-08 20:47:29 +0000 |
commit | 043beeed5375bcc7982af475b1d599e475f0467a (patch) | |
tree | e4a3f7b6abc9819aaf88a8bb5ff54698f7d15200 /include/simple-object.h | |
parent | ad0835bc5e9652f42535584b12137a955ac68789 (diff) | |
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This commit was manufactured by cvs2svn to create tag 'cgen-cgen-snapshot-20111201
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Diffstat (limited to 'include/simple-object.h')
-rw-r--r-- | include/simple-object.h | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/include/simple-object.h b/include/simple-object.h deleted file mode 100644 index c4786757a..000000000 --- a/include/simple-object.h +++ /dev/null @@ -1,204 +0,0 @@ -/* simple-object.h -- 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. */ - -#ifndef SIMPLE_OBJECT_H -#define SIMPLE_OBJECT_H - -#include <stddef.h> -#include <sys/types.h> - -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/* This header file provides four types with associated functions. - They are used to read and write object files. This is a minimal - interface, intended to support the needs of gcc without bringing in - all the power and complexity of BFD. */ - -/* The type simple_object_read * is used to read an existing object - file. */ - -typedef struct simple_object_read_struct simple_object_read; - -/* Create an simple_object_read given DESCRIPTOR, an open file - descriptor, and OFFSET, an offset within the file. The offset is - for use with archives, and should be 0 for an ordinary object file. - The descriptor must remain open until done with the returned - simple_object_read. SEGMENT_NAME is used on Mach-O and is required - on that platform: it means to only look at sections within the - segment with that name. It is ignored for other object file - formats. On error, this function returns NULL, and sets *ERRMSG to - an error string and sets *ERR to an errno value or 0 if there is no - relevant errno. */ - -extern simple_object_read * -simple_object_start_read (int descriptor, off_t offset, - const char *segment_name, const char **errmsg, - int *err); - -/* Call PFN for each section in SIMPLE_OBJECT, passing it the section - name, offset within the file of the section contents, and length of - the section contents. The offset within the file is relative to - the offset passed to simple_object_start_read. The DATA argument - to simple_object_find_sections is passed on to PFN. If PFN returns - 0, the loop is stopped and simple_object_find_sections returns. If - PFN returns non-zero, the loop continues. On success this returns - NULL. On error it returns an error string, and sets *ERR to an - errno value or 0 if there is no relevant errno. */ - -extern const char * -simple_object_find_sections (simple_object_read *simple_object, - int (*pfn) (void *data, const char *, - off_t offset, off_t length), - void *data, - int *err); - -/* Look for the section NAME in SIMPLE_OBJECT. This returns - information for the first section NAME in SIMPLE_OBJECT. Note that - calling this multiple times is inefficient; use - simple_object_find_sections instead. - - If found, return 1 and set *OFFSET to the offset in the file of the - section contents and set *LENGTH to the length of the section - contents. *OFFSET will be relative to the offset passed to - simple_object_start_read. - - If the section is not found, and no error occurs, return 0 and set - *ERRMSG to NULL. - - If an error occurs, return 0, set *ERRMSG to an error message, and - set *ERR to an errno value or 0 if there is no relevant errno. */ - -extern int -simple_object_find_section (simple_object_read *simple_object, - const char *name, off_t *offset, off_t *length, - const char **errmsg, int *err); - -/* Release all resources associated with SIMPLE_OBJECT. This does not - close the file descriptor. */ - -extern void -simple_object_release_read (simple_object_read *); - -/* The type simple_object_attributes holds the attributes of an object - file that matter for creating a file or ensuring that two files are - compatible. This is a set of magic numbers. */ - -typedef struct simple_object_attributes_struct simple_object_attributes; - -/* Fetch the attributes of SIMPLE_OBJECT. This information will - persist until simple_object_attributes_release is called, even if - SIMPLE_OBJECT is closed. On error this returns NULL, sets *ERRMSG - to an error message, and sets *ERR to an errno value or 0 if there - isn't one. */ - -extern simple_object_attributes * -simple_object_fetch_attributes (simple_object_read *simple_object, - const char **errmsg, int *err); - -/* Merge the FROM attributes into TO. If two objects with these - attributes could be linked together without error, returns NULL. - Otherwise, returns an error message, and sets *ERR to an errno - value or 0 if there isn't one. */ - -extern const char * -simple_object_attributes_merge (simple_object_attributes *to, - simple_object_attributes *from, - int *err); - -/* Release all resources associated with ATTRS. */ - -extern void -simple_object_release_attributes (simple_object_attributes *attrs); - -/* The type simple_object_write is used to create a new object file. */ - -typedef struct simple_object_write_struct simple_object_write; - -/* Start creating a new object file which is like ATTRS. You must - fetch attribute information from an existing object file before you - can create a new one. There is currently no support for creating - an object file de novo. The segment name is only used on Mach-O, - where it is required. It means that all sections are created - within that segment. It is ignored for other object file formats. - On error this function returns NULL, sets *ERRMSG to an error - message, and sets *ERR to an errno value or 0 if there isn't - one. */ - -extern simple_object_write * -simple_object_start_write (simple_object_attributes *attrs, - const char *segment_name, - const char **errmsg, int *err); - -/* The type simple_object_write_section is a handle for a section - which is being written. */ - -typedef struct simple_object_write_section_struct simple_object_write_section; - -/* Add a section to SIMPLE_OBJECT. NAME is the name of the new - section. ALIGN is the required alignment expressed as the number - of required low-order 0 bits (e.g., 2 for alignment to a 32-bit - boundary). The section is created as containing data, readable, - not writable, not executable, not loaded at runtime. On error this - returns NULL, sets *ERRMSG to an error message, and sets *ERR to an - errno value or 0 if there isn't one. */ - -extern simple_object_write_section * -simple_object_write_create_section (simple_object_write *simple_object, - const char *name, unsigned int align, - const char **errmsg, int *err); - -/* Add data BUFFER/SIZE to SECTION in SIMPLE_OBJECT. If COPY is - non-zero, the data will be copied into memory if necessary. If - COPY is zero, BUFFER must persist until SIMPLE_OBJECT is released. - On success this returns NULL. On error this returns an error - message, and sets *ERR to an errno value or 0 if there isn't - one. */ - -extern const char * -simple_object_write_add_data (simple_object_write *simple_object, - simple_object_write_section *section, - const void *buffer, size_t size, - int copy, int *err); - -/* Write the complete object file to DESCRIPTOR, an open file - descriptor. This returns NULL on success. On error this returns - an error message, and sets *ERR to an errno value or 0 if there - isn't one. */ - -extern const char * -simple_object_write_to_file (simple_object_write *simple_object, - int descriptor, int *err); - -/* Release all resources associated with SIMPLE_OBJECT, including any - simple_object_write_section's that may have been created. */ - -extern void -simple_object_release_write (simple_object_write *); - -#ifdef __cplusplus -} -#endif - -#endif |