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2012-01-20 Pedro Alves <palves@redhat.com>

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Ulrich Weigand  <ulrich.weigand@linaro.org>

	* configure.ac [AC_CHECK_FUNCS]: Check for pread and pwrite.
	* config.in, configure: Regenerate.

	* target.h (struct target_ops): Add to_fileio_open, to_fileio_pwrite,
	to_fileio_pread, to_fileio_close, to_fileio_unlink.
	(target_fileio_open): Add prototype.
	(target_fileio_pwrite): Likewise.
	(target_fileio_pread): Likewise.
	(target_fileio_close): Likewise.
	(target_fileio_unlink): Likewise.
	(target_fileio_read_alloc): Likewise.
	(target_fileio_read_stralloc): Likewise.

	* target.c: Include "gdb/fileio.h".
	(target_read_stralloc): Accept trailing, but not embedded NUL bytes.
	(default_fileio_target): New function.
	(target_fileio_open): Likewise.
	(target_fileio_pwrite): Likewise.
	(target_fileio_pread): Likewise.
	(target_fileio_close): Likewise.
	(target_fileio_unlink): Likewise.
	(target_fileio_close_cleanup): Likewise.
	(target_fileio_read_alloc_1): Likewise.
	(target_fileio_read_alloc): Likewise.
	(target_fileio_read_stralloc): Likewise.

	* inf-child.c: Include "gdb/fileio.h", <sys/types.h>, <sys/stat.h>,
	<fcntl.h>, and <unistd.h>.
	(inf_child_fileio_open_flags_to_host): New function.
	(inf_child_errno_to_fileio_error): Likewise.
	(inf_child_fileio_open): Likewise.
	(inf_child_fileio_pwrite): Likewise.
	(inf_child_fileio_pread): Likewise.
	(inf_child_fileio_close): Likewise.
	(inf_child_fileio_unlink): Likewise.
	(inf_child_target): Install to_fileio routines.

	* remote.c (init_remote_ops): Install to_fileio routines.
This commit is contained in:
Ulrich Weigand
2012-01-20 09:45:51 +00:00
parent 901f991244
commit 7313baad7c
8 changed files with 616 additions and 9 deletions
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77
gdb/target.h
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@@ -681,6 +681,35 @@ struct target_ops
struct address_space *(*to_thread_address_space) (struct target_ops *,
ptid_t);
/* Target file operations. */
/* Open FILENAME on the target, using FLAGS and MODE. Return a
target file descriptor, or -1 if an error occurs (and set
*TARGET_ERRNO). */
int (*to_fileio_open) (const char *filename, int flags, int mode,
int *target_errno);
/* Write up to LEN bytes from WRITE_BUF to FD on the target.
Return the number of bytes written, or -1 if an error occurs
(and set *TARGET_ERRNO). */
int (*to_fileio_pwrite) (int fd, const gdb_byte *write_buf, int len,
ULONGEST offset, int *target_errno);
/* Read up to LEN bytes FD on the target into READ_BUF.
Return the number of bytes read, or -1 if an error occurs
(and set *TARGET_ERRNO). */
int (*to_fileio_pread) (int fd, gdb_byte *read_buf, int len,
ULONGEST offset, int *target_errno);
/* Close FD on the target. Return 0, or -1 if an error occurs
(and set *TARGET_ERRNO). */
int (*to_fileio_close) (int fd, int *target_errno);
/* Unlink FILENAME on the target. Return 0, or -1 if an error
occurs (and set *TARGET_ERRNO). */
int (*to_fileio_unlink) (const char *filename, int *target_errno);
/* Tracepoint-related operations. */
/* Prepare the target for a tracing run. */
@@ -1489,6 +1518,54 @@ extern int target_search_memory (CORE_ADDR start_addr,
ULONGEST pattern_len,
CORE_ADDR *found_addrp);
/* Target file operations. */
/* Open FILENAME on the target, using FLAGS and MODE. Return a
target file descriptor, or -1 if an error occurs (and set
*TARGET_ERRNO). */
extern int target_fileio_open (const char *filename, int flags, int mode,
int *target_errno);
/* Write up to LEN bytes from WRITE_BUF to FD on the target.
Return the number of bytes written, or -1 if an error occurs
(and set *TARGET_ERRNO). */
extern int target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
ULONGEST offset, int *target_errno);
/* Read up to LEN bytes FD on the target into READ_BUF.
Return the number of bytes read, or -1 if an error occurs
(and set *TARGET_ERRNO). */
extern int target_fileio_pread (int fd, gdb_byte *read_buf, int len,
ULONGEST offset, int *target_errno);
/* Close FD on the target. Return 0, or -1 if an error occurs
(and set *TARGET_ERRNO). */
extern int target_fileio_close (int fd, int *target_errno);
/* Unlink FILENAME on the target. Return 0, or -1 if an error
occurs (and set *TARGET_ERRNO). */
extern int target_fileio_unlink (const char *filename, int *target_errno);
/* Read target file FILENAME. The return value will be -1 if the transfer
fails or is not supported; 0 if the object is empty; or the length
of the object otherwise. If a positive value is returned, a
sufficiently large buffer will be allocated using xmalloc and
returned in *BUF_P containing the contents of the object.
This method should be used for objects sufficiently small to store
in a single xmalloc'd buffer, when no fixed bound on the object's
size is known in advance. */
extern LONGEST target_fileio_read_alloc (const char *filename,
gdb_byte **buf_p);
/* Read target file FILENAME. The result is NUL-terminated and
returned as a string, allocated using xmalloc. If an error occurs
or the transfer is unsupported, NULL is returned. Empty objects
are returned as allocated but empty strings. A warning is issued
if the result contains any embedded NUL bytes. */
extern char *target_fileio_read_stralloc (const char *filename);
/* Tracepoint-related operations. */
#define target_trace_init() \