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authorJoseph Myers <joseph@codesourcery.com>2012-08-10 15:53:27 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-08-10 15:53:27 +0000
commit121dce05fe25ed878088fa7351c840a303182c65 (patch)
treeb67c4ee7205ad5e59068608df8fd21a08d6ea3de /sysdeps/unix/sysv/linux/kernel-features.h
parent77480c6ba52e49a70f37c6f49d59f2f72501aca0 (diff)
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Move Linux kernel version conditionals to kernel-features.h.
Diffstat (limited to 'sysdeps/unix/sysv/linux/kernel-features.h')
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 21fba884e8..bf81c4a07f 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -210,6 +210,13 @@
# define __ASSUME_O_CLOEXEC 1
#endif
+/* From 2.6.23 onwards the value of ARG_MAX depends on the stack
+ size. */
+#define __LINUX_ARG_MAX_STACK_BASED_MIN_KERNEL 0x020617
+#if __LINUX_KERNEL_VERSION >= __LINUX_ARG_MAX_STACK_BASED_MIN_KERNEL
+# define __ASSUME_ARG_MAX_STACK_BASED 1
+#endif
+
/* Support for ADJ_OFFSET_SS_READ was added in 2.6.24. */
#if __LINUX_KERNEL_VERSION >= 0x020618
# define __ASSUME_ADJ_OFFSET_SS_READ 1