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95 lines
3.2 KiB
Diff
95 lines
3.2 KiB
Diff
From f972afc2509eebcb00d370256c55b112a3b5ffca Mon Sep 17 00:00:00 2001
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From: David Heidelberger <david.heidelberger@ixit.cz>
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Date: Mon, 29 Jun 2015 16:50:40 +0200
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Subject: [PATCH 2/3] uapi/libc-compat.h: do not rely on __GLIBC__
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Musl provides the same structs as glibc, but does not provide a define to
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allow its detection. Since the absence of __GLIBC__ also can mean that it
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is included from the kernel, change the __GLIBC__ detection to
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!__KERNEL__, which should always be true when included from userspace.
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Signed-off-by: John Spencer <maillist-linux@barfooze.de>
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Tested-by: David Heidelberger <david.heidelberger@ixit.cz>
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Signed-off-by: Jonas Gorski <jogo@openwrt.org>
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---
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include/uapi/linux/libc-compat.h | 18 +++++++++---------
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1 file changed, 9 insertions(+), 9 deletions(-)
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--- a/include/uapi/linux/libc-compat.h
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+++ b/include/uapi/linux/libc-compat.h
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@@ -48,13 +48,13 @@
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#ifndef _UAPI_LIBC_COMPAT_H
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#define _UAPI_LIBC_COMPAT_H
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-/* We have included glibc headers... */
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-#if defined(__GLIBC__)
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+/* We have included libc headers... */
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+#if !defined(__KERNEL__)
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-/* Coordinate with glibc net/if.h header. */
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+/* Coordinate with libc net/if.h header. */
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#if defined(_NET_IF_H)
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-/* GLIBC headers included first so don't define anything
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+/* LIBC headers included first so don't define anything
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* that would already be defined. */
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#define __UAPI_DEF_IF_IFCONF 0
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@@ -85,10 +85,10 @@
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#endif /* _NET_IF_H */
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-/* Coordinate with glibc netinet/in.h header. */
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+/* Coordinate with libc netinet/in.h header. */
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#if defined(_NETINET_IN_H)
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-/* GLIBC headers included first so don't define anything
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+/* LIBC headers included first so don't define anything
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* that would already be defined. */
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#define __UAPI_DEF_IN_ADDR 0
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#define __UAPI_DEF_IN_IPPROTO 0
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@@ -102,7 +102,7 @@
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* if the glibc code didn't define them. This guard matches
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* the guard in glibc/inet/netinet/in.h which defines the
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* additional in6_addr macros e.g. s6_addr16, and s6_addr32. */
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-#if defined(__USE_MISC) || defined (__USE_GNU)
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+#if !defined(__GLIBC__) || defined(__USE_MISC) || defined (__USE_GNU)
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#define __UAPI_DEF_IN6_ADDR_ALT 0
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#else
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#define __UAPI_DEF_IN6_ADDR_ALT 1
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@@ -117,7 +117,7 @@
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#else
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/* Linux headers included first, and we must define everything
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- * we need. The expectation is that glibc will check the
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+ * we need. The expectation is that the libc will check the
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* __UAPI_DEF_* defines and adjust appropriately. */
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#define __UAPI_DEF_IN_ADDR 1
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#define __UAPI_DEF_IN_IPPROTO 1
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@@ -127,7 +127,7 @@
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#define __UAPI_DEF_IN_CLASS 1
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#define __UAPI_DEF_IN6_ADDR 1
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-/* We unconditionally define the in6_addr macros and glibc must
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+/* We unconditionally define the in6_addr macros and the libc must
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* coordinate. */
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#define __UAPI_DEF_IN6_ADDR_ALT 1
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#define __UAPI_DEF_SOCKADDR_IN6 1
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@@ -149,7 +149,7 @@
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/* If we did not see any headers from any supported C libraries,
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* or we are being included in the kernel, then define everything
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* that we need. */
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-#else /* !defined(__GLIBC__) */
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+#else /* defined(__KERNEL__) */
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/* Definitions for if.h */
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#define __UAPI_DEF_IF_IFCONF 1
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@@ -182,6 +182,6 @@
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/* Definitions for xattr.h */
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#define __UAPI_DEF_XATTR 1
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-#endif /* __GLIBC__ */
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+#endif /* __KERNEL__ */
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#endif /* _UAPI_LIBC_COMPAT_H */
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