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authorAndreas Schwab <schwab@suse.de>2017-09-06 17:29:29 +0200
committerAndreas Schwab <schwab@suse.de>2017-09-19 16:19:14 +0200
commit43ffc53a352a67672210c9dd4959f6c6b7407e60 (patch)
treefb92e7e211583667cd6ffcff331e167eccffb9e7 /sysdeps/unix/sysv/linux/kernel-features.h
parenta5dcc87e77cf711bca320e8506a4d4fef25bf4f4 (diff)
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Use execveat syscall in fexecve (bug 22134)
By using execveat we no longer depend on /proc.  The execveat syscall was
introduced in 3.19, except for a few late comers.
Diffstat (limited to 'sysdeps/unix/sysv/linux/kernel-features.h')
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 9495db4fef..2e1fe6597a 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -102,3 +102,8 @@
    implementation does not assume the __ASSUME_* and instead use a fallback
    implementation based on p{read,write}v and returning an error for
    non supported flags.  */
+
+/* Support for the execveat syscall was added in 3.19.  */
+#if __LINUX_KERNEL_VERSION >= 0x031300
+# define __ASSUME_EXECVEAT	1
+#endif