From: Guilherme Janczak <guilherme.janczak@yandex.com>
To: musl@lists.openwall.com
Subject: [musl] [PATCH] add close_range() syscall wrapper
Date: Wed, 10 Aug 2022 13:03:11 +0000 [thread overview]
Message-ID: <20220810130311.dwk7zxwkz32igrdm@yandex.com> (raw)
close_range() is a syscall present in FreeBSD 8.0 and Linux 5.9. glibc
2.34 added a wrapper.
---
include/unistd.h | 3 +++
src/linux/close_range.c | 8 ++++++++
2 files changed, 11 insertions(+)
create mode 100644 src/linux/close_range.c
diff --git a/include/unistd.h b/include/unistd.h
index 80be3b26..e4b8cbb1 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -161,6 +161,9 @@ unsigned ualarm(unsigned, unsigned);
#define L_INCR 1
#define L_XTND 2
int brk(void *);
+#define CLOSE_RANGE_UNSHARE 0x01
+#define CLOSE_RANGE_CLOEXEC 0x02
+int close_range(unsigned int, unsigned int, int);
void *sbrk(intptr_t);
pid_t vfork(void);
int vhangup(void);
diff --git a/src/linux/close_range.c b/src/linux/close_range.c
new file mode 100644
index 00000000..4c5cd68c
--- /dev/null
+++ b/src/linux/close_range.c
@@ -0,0 +1,8 @@
+#define _GNU_SOURCE
+#include <unistd.h>
+#include "syscall.h"
+
+int close_range(unsigned int first, unsigned int last, int flags)
+{
+ return syscall(SYS_close_range, first, last, (unsigned int)flags);
+}
--
2.35.1
next reply other threads:[~2022-08-10 13:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-10 13:03 Guilherme Janczak [this message]
2022-08-18 0:35 ` Rich Felker
2022-08-18 10:11 ` Érico Nogueira
2022-08-18 10:40 ` Alexey Izbyshev
2022-08-18 14:42 ` James Y Knight
2022-08-18 14:54 ` Alexey Izbyshev
2022-08-18 12:31 ` Guilherme Janczak
2023-09-01 8:02 Natanael Copa
2023-09-01 13:57 ` Rich Felker
2023-09-01 14:55 ` Natanael Copa
2023-09-01 15:06 ` Rich Felker
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