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unix: add MemfdCreate on Linux

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Add a wrapper for the memfd_create syscall on Linux. See
http://man7.org/linux/man-pages/man2/memfd_create.2.html for more
information.

Also add the corresponding MFD_* constants to be used in the flags
argument.

Change-Id: Ib30a007e15575a38ecf204601ffede9c913799b6
Reviewed-on: https://go-review.googlesource.com/135915
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2018-09-18 15:37:33 +00:00
committed by Tobias Klauser
parent d0be0721c3
commit ee1b12c67a
26 changed files with 375 additions and 1 deletions
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unix/zerrors_linux_mips64.go
+15
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@@ -975,6 +975,21 @@ const (
MCL_CURRENT = 0x1
MCL_FUTURE = 0x2
MCL_ONFAULT = 0x4
MFD_ALLOW_SEALING = 0x2
MFD_CLOEXEC = 0x1
MFD_HUGETLB = 0x4
MFD_HUGE_16GB = -0x78000000
MFD_HUGE_16MB = 0x60000000
MFD_HUGE_1GB = 0x78000000
MFD_HUGE_1MB = 0x50000000
MFD_HUGE_256MB = 0x70000000
MFD_HUGE_2GB = 0x7c000000
MFD_HUGE_2MB = 0x54000000
MFD_HUGE_512KB = 0x4c000000
MFD_HUGE_64KB = 0x40000000
MFD_HUGE_8MB = 0x5c000000
MFD_HUGE_MASK = 0x3f
MFD_HUGE_SHIFT = 0x1a
MINIX2_SUPER_MAGIC = 0x2468
MINIX2_SUPER_MAGIC2 = 0x2478
MINIX3_SUPER_MAGIC = 0x4d5a