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pa-host.c (MAP_FAILED): Define if not defined.

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* pa-host.c (MAP_FAILED): Define if not defined.
	(pa_gt_pch_use_address): Handle short reads.

From-SVN: r92166
This commit is contained in:
John David Anglin 2004-12-14 22:48:53 +00:00 committed by John David Anglin
parent 7cacf53e50
commit b3e30ec043
2 changed files with 19 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-12-14 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* pa-host.c (MAP_FAILED): Define if not defined.
(pa_gt_pch_use_address): Handle short reads.
2004-12-14 Richard Henderson <rth@redhat.com>
PR target/17990

16
gcc/config/pa/pa-host.c
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@ -26,6 +26,10 @@
#include "hosthooks.h"
#include "hosthooks-def.h"
#ifndef MAP_FAILED
#define MAP_FAILED (void *)-1L
#endif
static void *pa_gt_pch_get_address (size_t, int);
static int pa_gt_pch_use_address (void *, size_t, int, size_t);
@ -114,8 +118,16 @@ pa_gt_pch_use_address (void *base, size_t size, int fd, size_t offset)
if (lseek (fd, offset, SEEK_SET) == (off_t)-1)
return -1;
if (read (fd, base, size) == -1)
return -1;
while (size)
{
ssize_t nbytes;
nbytes = read (fd, base, MIN (size, SSIZE_MAX));
if (nbytes <= 0)
return -1;
base = (char *) base + nbytes;
size -= nbytes;
}
return 1;
}