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Fix call to system fallocate to handle errno correctly.

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2021-03-19  Holger Berger  <holger.berger@googlemail.com>

gold/
	PR gold/26541
	* output.cc (gold_fallocate): Use errno when calling system fallocate.
This commit is contained in:
Holger Berger
2021-03-19 15:38:54 -07:00
committed by Cary Coutant
parent cc1849716f
commit 07b1c3dbd9
2 changed files with 9 additions and 2 deletions
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5
gold/ChangeLog
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@ -1,3 +1,8 @@
2021-03-19 Holger Berger <holger.berger@googlemail.com>
PR gold/26541
* output.cc (gold_fallocate): Use errno when calling system fallocate.
2021-03-19 Cary Coutant <ccoutant@gmail.com> 2021-03-19 Cary Coutant <ccoutant@gmail.com>
PR gold/26585 PR gold/26585

6
gold/output.cc
View File

@ -141,12 +141,14 @@ gold_fallocate(int o, off_t offset, off_t len)
#ifdef HAVE_FALLOCATE #ifdef HAVE_FALLOCATE
{ {
errno = 0;
int err = ::fallocate(o, 0, offset, len); int err = ::fallocate(o, 0, offset, len);
if (err != EINVAL && err != ENOSYS && err != EOPNOTSUPP) if (err < 0 && errno != EINVAL && errno != ENOSYS && errno != EOPNOTSUPP)
return err; return errno;
} }
#endif // defined(HAVE_FALLOCATE) #endif // defined(HAVE_FALLOCATE)
errno = 0;
if (::ftruncate(o, offset + len) < 0) if (::ftruncate(o, offset + len) < 0)
return errno; return errno;
return 0; return 0;