Merge pull request #4173 from devnexen/map_droppable_linux

tgross35 · web-flow · commit 149d3922e349 · 2024-12-04T22:30:38.000Z
Adding MAP_DROPPABLE for Linux (6.11)
diff --git a/libc-test/build.rs b/libc-test/build.rs
@@ -4246,6 +4246,9 @@ fn test_linux(target: &str) {
             "EPIOCSPARAMS"
             | "EPIOCGPARAMS" => true,
 
+            // FIXME: Requires >= 6.11 kernel headers.
+            "MAP_DROPPABLE" => true,
+
             _ => false,
         }
     });
diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
@@ -1586,6 +1586,7 @@ MADV_UNMERGEABLE
 MADV_WILLNEED
 MADV_WIPEONFORK
 MAP_DENYWRITE
+MAP_DROPPABLE
 MAP_EXECUTABLE
 MAP_FILE
 MAP_FIXED_NOREPLACE
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
@@ -4767,6 +4767,7 @@ pub const UDP_NO_CHECK6_RX: c_int = 102;
 
 // include/uapi/linux/mman.h
 pub const MAP_SHARED_VALIDATE: c_int = 0x3;
+pub const MAP_DROPPABLE: c_int = 0x8;
 
 // include/uapi/asm-generic/mman-common.h
 pub const MAP_FIXED_NOREPLACE: c_int = 0x100000;

Original file line number	Diff line number	Diff line change
`@@ -4246,6 +4246,9 @@ fn test_linux(target: &str) {`
`4246`	`4246`	`"EPIOCSPARAMS"`
`4247`	`4247`	`\| "EPIOCGPARAMS" => true,`
`4248`	`4248`
	`4249`	`+ // FIXME: Requires >= 6.11 kernel headers.`
	`4250`	`+ "MAP_DROPPABLE" => true,`
	`4251`	`+`
`4249`	`4252`	`_ => false,`
`4250`	`4253`	`}`
`4251`	`4254`	`});`