mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-08-08 10:50:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add MADV_POPULATE_WRITE definition from linux v5.14

Browse source 
see
  linux commit 4ca9b3859dac14bbef0c27d00667bb5b10917adb
  mm/madvise: introduce MADV_POPULATE_(READ|WRITE) to prefault page tables
This commit is contained in:
Michal Biesek 2023-08-11 23:31:53 +02:00
parent c4ac6dbc35
commit ac2d192e0d
No known key found for this signature in database
GPG key ID: FFF2B9B1C73BB3CA
3 changed files with 4 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
libc/sysv/consts.sh
View file

@ -270,6 +270,7 @@ syscon madv MADV_KEEPONFORK 19 19 127 127 127 127 127 127 # T
syscon madv MADV_COLD 20 20 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_PAGEOUT 21 21 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_POPULATE_READ 22 22 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_POPULATE_WRITE 23 23 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_DOFORK 11 11 127 127 127 127 127 127 # TODO(jart): what is it?
syscon madv MADV_DONTDUMP 16 16 127 127 127 127 127 127 # see MAP_CONCEAL in OpenBSD; TODO(jart): what is it?
syscon madv MADV_DONTFORK 10 10 127 127 127 127 127 127 # TODO(jart): what is it?

2
libc/sysv/consts/MADV_POPULATE_WRITE.S Normal file
View file

@ -0,0 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon madv,MADV_POPULATE_WRITE,23,23,127,127,127,127,127,127

1
libc/sysv/consts/madv.h
View file

@ -25,6 +25,7 @@ extern const unsigned MADV_KEEPONFORK;
extern const unsigned MADV_COLD;
extern const unsigned MADV_PAGEOUT;
extern const unsigned MADV_POPULATE_READ;
extern const unsigned MADV_POPULATE_WRITE;
#define MADV_NORMAL 0
#define MADV_RANDOM 1