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ChangeLog: 

* inf-child.c (inf_child_fileio_pwrite): If pwrite fails, fall back
	to attempting lseek/write.
	(inf_child_fileio_pread): Likewise for pread.

gdbserver/ChangeLog:

	* hostio.c (handle_pread): If pread fails, fall back to attempting
	lseek/read.
	(handle_pwrite): Likewise for pwrite.
This commit is contained in:
Ulrich Weigand 2012-08-02 15:52:27 +00:00
parent 399c99f739
commit 7c3270aec1
4 changed files with 44 additions and 12 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2012-08-02 Ulrich Weigand <ulrich.weigand@linaro.org>
* inf-child.c (inf_child_fileio_pwrite): If pwrite fails, fall back
to attempting lseek/write.
(inf_child_fileio_pread): Likewise for pread.
2012-08-02 Yao Qi <yao@codesourcery.com>
* dwarf2loc.c (entry_values_debug): Add 'unsigned'.

6
gdb/gdbserver/ChangeLog
View File

@ -1,3 +1,9 @@
2012-08-02 Ulrich Weigand <ulrich.weigand@linaro.org>
* hostio.c (handle_pread): If pread fails, fall back to attempting
lseek/read.
(handle_pwrite): Likewise for pwrite.
2012-08-01 Ulrich Weigand <ulrich.weigand@linaro.org>
* linux-arm-low.c (arm_linux_hw_point_initialize): Distinguish

22
gdb/gdbserver/hostio.c
View File

@ -328,10 +328,15 @@ handle_pread (char *own_buf, int *new_packet_len)
#ifdef HAVE_PREAD
ret = pread (fd, data, len, offset);
#else
ret = lseek (fd, offset, SEEK_SET);
if (ret != -1)
ret = read (fd, data, len);
ret = -1;
#endif
/* If we have no pread or it failed for this file, use lseek/read. */
if (ret == -1)
{
ret = lseek (fd, offset, SEEK_SET);
if (ret != -1)
ret = read (fd, data, len);
}
if (ret == -1)
{
@ -376,10 +381,15 @@ handle_pwrite (char *own_buf, int packet_len)
#ifdef HAVE_PWRITE
ret = pwrite (fd, data, len, offset);
#else
ret = lseek (fd, offset, SEEK_SET);
if (ret != -1)
ret = write (fd, data, len);
ret = -1;
#endif
/* If we have no pwrite or it failed for this file, use lseek/write. */
if (ret == -1)
{
ret = lseek (fd, offset, SEEK_SET);
if (ret != -1)
ret = write (fd, data, len);
}
if (ret == -1)
{

22
gdb/inf-child.c
View File

@ -265,10 +265,15 @@ inf_child_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
#ifdef HAVE_PWRITE
ret = pwrite (fd, write_buf, len, (long) offset);
#else
ret = lseek (fd, (long) offset, SEEK_SET);
if (ret != -1)
ret = write (fd, write_buf, len);
ret = -1;
#endif
/* If we have no pwrite or it failed for this file, use lseek/write. */
if (ret == -1)
{
ret = lseek (fd, (long) offset, SEEK_SET);
if (ret != -1)
ret = write (fd, write_buf, len);
}
if (ret == -1)
*target_errno = inf_child_errno_to_fileio_error (errno);
@ -288,10 +293,15 @@ inf_child_fileio_pread (int fd, gdb_byte *read_buf, int len,
#ifdef HAVE_PREAD
ret = pread (fd, read_buf, len, (long) offset);
#else
ret = lseek (fd, (long) offset, SEEK_SET);
if (ret != -1)
ret = read (fd, read_buf, len);
ret = -1;
#endif
/* If we have no pread or it failed for this file, use lseek/read. */
if (ret == -1)
{
ret = lseek (fd, (long) offset, SEEK_SET);
if (ret != -1)
ret = read (fd, read_buf, len);
}
if (ret == -1)
*target_errno = inf_child_errno_to_fileio_error (errno);