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* output.cc (posix_fallocate): Return 0 on success, errno on failure. 

(Output_file::map_no_anonymous): Check for non-zero
	return code from posix_fallocate.
This commit is contained in:
Cary Coutant 2011-10-18 21:36:29 +00:00
parent 736086bae2
commit bab9090fa3
2 changed files with 15 additions and 3 deletions
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6
gold/ChangeLog
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@ -1,3 +1,9 @@
2011-10-18 Cary Coutant <ccoutant@google.com>
* output.cc (posix_fallocate): Return 0 on success, errno on failure.
(Output_file::map_no_anonymous): Check for non-zero
return code from posix_fallocate.
2011-10-17 Cary Coutant <ccoutant@google.com>
PR gold/13245

12
gold/output.cc
View File

@ -119,7 +119,9 @@ extern "C" void *gold_mremap(void *, size_t, size_t, int);
static int
posix_fallocate(int o, off_t offset, off_t len)
{
return ftruncate(o, offset + len);
if (ftruncate(o, offset + len) < 0)
return errno;
return 0;
}
#endif // !defined(HAVE_POSIX_FALLOCATE)
@ -5075,8 +5077,12 @@ Output_file::map_no_anonymous(bool writable)
// output file will wind up incomplete, but we will have already
// exited. The alternative to fallocate would be to use fdatasync,
// but that would be a more significant performance hit.
if (writable && ::posix_fallocate(o, 0, this->file_size_) < 0)
gold_fatal(_("%s: %s"), this->name_, strerror(errno));
if (writable)
{
int err = ::posix_fallocate(o, 0, this->file_size_);
if (err != 0)
gold_fatal(_("%s: %s"), this->name_, strerror(err));
}
// Map the file into memory.
int prot = PROT_READ;