diff options
Diffstat (limited to 'target/linux/generic/pending-4.4')
4 files changed, 147 insertions, 157 deletions
diff --git a/target/linux/generic/pending-4.4/270-uapi-kernel.h-glibc-specific-inclusion-of-sysinfo.h.patch b/target/linux/generic/pending-4.4/270-uapi-kernel.h-glibc-specific-inclusion-of-sysinfo.h.patch deleted file mode 100644 index 762f4989b6..0000000000 --- a/target/linux/generic/pending-4.4/270-uapi-kernel.h-glibc-specific-inclusion-of-sysinfo.h.patch +++ /dev/null @@ -1,34 +0,0 @@ -From 8b05e325824d3b38e52a7748b3b5dc34dc1c0f6d Mon Sep 17 00:00:00 2001 -From: David Heidelberger <david.heidelberger@ixit.cz> -Date: Mon, 29 Jun 2015 14:37:54 +0200 -Subject: [PATCH 1/3] uapi/kernel.h: glibc specific inclusion of sysinfo.h - -including sysinfo.h from kernel.h makes no sense whatsoever, -but removing it breaks glibc's userspace header, -which includes kernel.h instead of sysinfo.h from their sys/sysinfo.h. -this seems to be a historical mistake. -on musl, including any header that uses kernel.h directly or indirectly -plus sys/sysinfo.h will produce a compile error due to redefinition of -struct sysinfo from sys/sysinfo.h. -so for now, only include it on glibc or when including from kernel -in order not to break their headers. - -Signed-off-by: John Spencer <maillist-linux@barfooze.de> -Signed-off-by: David Heidelberger <david.heidelberger@ixit.cz> -Signed-off-by: Jonas Gorski <jogo@openwrt.org> ---- - include/uapi/linux/kernel.h | 2 ++ - 1 file changed, 2 insertions(+) - ---- a/include/uapi/linux/kernel.h -+++ b/include/uapi/linux/kernel.h -@@ -1,7 +1,9 @@ - #ifndef _UAPI_LINUX_KERNEL_H - #define _UAPI_LINUX_KERNEL_H - -+#if defined(__KERNEL__) || defined( __GLIBC__) - #include <linux/sysinfo.h> -+#endif - - /* - * 'kernel.h' contains some often-used function prototypes etc diff --git a/target/linux/generic/pending-4.4/270-uapi-libc-compat-add-fallback-for-unsupported-libcs.patch b/target/linux/generic/pending-4.4/270-uapi-libc-compat-add-fallback-for-unsupported-libcs.patch new file mode 100644 index 0000000000..06ad9bba9d --- /dev/null +++ b/target/linux/generic/pending-4.4/270-uapi-libc-compat-add-fallback-for-unsupported-libcs.patch @@ -0,0 +1,130 @@ +From c6bdd0d302119819de72439972d0462c26ef9eda Mon Sep 17 00:00:00 2001 +From: Felix Janda <felix.janda@posteo.de> +Date: Sun, 12 Nov 2017 13:30:17 -0500 +Subject: uapi libc compat: add fallback for unsupported libcs + +libc-compat.h aims to prevent symbol collisions between uapi and libc +headers for each supported libc. This requires continuous coordination +between them. + +The goal of this commit is to improve the situation for libcs (such as +musl) which are not yet supported and/or do not wish to be explicitly +supported, while not affecting supported libcs. More precisely, with +this commit, unsupported libcs can request the suppression of any +specific uapi definition by defining the correspondings _UAPI_DEF_* +macro as 0. This can fix symbol collisions for them, as long as the +libc headers are included before the uapi headers. Inclusion in the +other order is outside the scope of this commit. + +All infrastructure in order to enable this fallback for unsupported +libcs is already in place, except that libc-compat.h unconditionally +defines all _UAPI_DEF_* macros to 1 for all unsupported libcs so that +any previous definitions are ignored. In order to fix this, this commit +merely makes these definitions conditional. + +This commit together with the musl libc commit + +http://git.musl-libc.org/cgit/musl/commit/?id=04983f2272382af92eb8f8838964ff944fbb8258 + +fixes for example the following compiler errors when <linux/in6.h> is +included after musl's <netinet/in.h>: + +./linux/in6.h:32:8: error: redefinition of 'struct in6_addr' +./linux/in6.h:49:8: error: redefinition of 'struct sockaddr_in6' +./linux/in6.h:59:8: error: redefinition of 'struct ipv6_mreq' + +The comments referencing glibc are still correct, but this file is not +only used for glibc any more. + +Signed-off-by: Felix Janda <felix.janda@posteo.de> +Reviewed-by: Hauke Mehrtens <hauke@hauke-m.de> +--- + include/uapi/linux/libc-compat.h | 55 +++++++++++++++++++++++++++++++++++++++- + 1 file changed, 54 insertions(+), 1 deletion(-) + +--- a/include/uapi/linux/libc-compat.h ++++ b/include/uapi/linux/libc-compat.h +@@ -148,39 +148,82 @@ + + /* If we did not see any headers from any supported C libraries, + * or we are being included in the kernel, then define everything +- * that we need. */ ++ * that we need. Check for previous __UAPI_* definitions to give ++ * unsupported C libraries a way to opt out of any kernel definition. */ + #else /* !defined(__GLIBC__) */ + + /* Definitions for if.h */ ++#ifndef __UAPI_DEF_IF_IFCONF + #define __UAPI_DEF_IF_IFCONF 1 ++#endif ++#ifndef __UAPI_DEF_IF_IFMAP + #define __UAPI_DEF_IF_IFMAP 1 ++#endif ++#ifndef __UAPI_DEF_IF_IFNAMSIZ + #define __UAPI_DEF_IF_IFNAMSIZ 1 ++#endif ++#ifndef __UAPI_DEF_IF_IFREQ + #define __UAPI_DEF_IF_IFREQ 1 ++#endif + /* Everything up to IFF_DYNAMIC, matches net/if.h until glibc 2.23 */ ++#ifndef __UAPI_DEF_IF_NET_DEVICE_FLAGS + #define __UAPI_DEF_IF_NET_DEVICE_FLAGS 1 ++#endif + /* For the future if glibc adds IFF_LOWER_UP, IFF_DORMANT and IFF_ECHO */ ++#ifndef __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO + #define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 1 ++#endif + + /* Definitions for in.h */ ++#ifndef __UAPI_DEF_IN_ADDR + #define __UAPI_DEF_IN_ADDR 1 ++#endif ++#ifndef __UAPI_DEF_IN_IPPROTO + #define __UAPI_DEF_IN_IPPROTO 1 ++#endif ++#ifndef __UAPI_DEF_IN_PKTINFO + #define __UAPI_DEF_IN_PKTINFO 1 ++#endif ++#ifndef __UAPI_DEF_IP_MREQ + #define __UAPI_DEF_IP_MREQ 1 ++#endif ++#ifndef __UAPI_DEF_SOCKADDR_IN + #define __UAPI_DEF_SOCKADDR_IN 1 ++#endif ++#ifndef __UAPI_DEF_IN_CLASS + #define __UAPI_DEF_IN_CLASS 1 ++#endif + + /* Definitions for in6.h */ ++#ifndef __UAPI_DEF_IN6_ADDR + #define __UAPI_DEF_IN6_ADDR 1 ++#endif ++#ifndef __UAPI_DEF_IN6_ADDR_ALT + #define __UAPI_DEF_IN6_ADDR_ALT 1 ++#endif ++#ifndef __UAPI_DEF_SOCKADDR_IN6 + #define __UAPI_DEF_SOCKADDR_IN6 1 ++#endif ++#ifndef __UAPI_DEF_IPV6_MREQ + #define __UAPI_DEF_IPV6_MREQ 1 ++#endif ++#ifndef __UAPI_DEF_IPPROTO_V6 + #define __UAPI_DEF_IPPROTO_V6 1 ++#endif ++#ifndef __UAPI_DEF_IPV6_OPTIONS + #define __UAPI_DEF_IPV6_OPTIONS 1 ++#endif ++#ifndef __UAPI_DEF_IN6_PKTINFO + #define __UAPI_DEF_IN6_PKTINFO 1 ++#endif ++#ifndef __UAPI_DEF_IP6_MTUINFO + #define __UAPI_DEF_IP6_MTUINFO 1 ++#endif + + /* Definitions for xattr.h */ ++#ifndef __UAPI_DEF_XATTR + #define __UAPI_DEF_XATTR 1 ++#endif + + #endif /* __GLIBC__ */ + diff --git a/target/linux/generic/pending-4.4/271-uapi-libc-compat.h-do-not-rely-on-__GLIBC__.patch b/target/linux/generic/pending-4.4/271-uapi-libc-compat.h-do-not-rely-on-__GLIBC__.patch deleted file mode 100644 index 2a29535eed..0000000000 --- a/target/linux/generic/pending-4.4/271-uapi-libc-compat.h-do-not-rely-on-__GLIBC__.patch +++ /dev/null @@ -1,94 +0,0 @@ -From f972afc2509eebcb00d370256c55b112a3b5ffca Mon Sep 17 00:00:00 2001 -From: David Heidelberger <david.heidelberger@ixit.cz> -Date: Mon, 29 Jun 2015 16:50:40 +0200 -Subject: [PATCH 2/3] uapi/libc-compat.h: do not rely on __GLIBC__ - -Musl provides the same structs as glibc, but does not provide a define to -allow its detection. Since the absence of __GLIBC__ also can mean that it -is included from the kernel, change the __GLIBC__ detection to -!__KERNEL__, which should always be true when included from userspace. - -Signed-off-by: John Spencer <maillist-linux@barfooze.de> -Tested-by: David Heidelberger <david.heidelberger@ixit.cz> -Signed-off-by: Jonas Gorski <jogo@openwrt.org> ---- - include/uapi/linux/libc-compat.h | 18 +++++++++--------- - 1 file changed, 9 insertions(+), 9 deletions(-) - ---- a/include/uapi/linux/libc-compat.h -+++ b/include/uapi/linux/libc-compat.h -@@ -48,13 +48,13 @@ - #ifndef _UAPI_LIBC_COMPAT_H - #define _UAPI_LIBC_COMPAT_H - --/* We have included glibc headers... */ --#if defined(__GLIBC__) -+/* We have included libc headers... */ -+#if !defined(__KERNEL__) - --/* Coordinate with glibc net/if.h header. */ -+/* Coordinate with libc net/if.h header. */ - #if defined(_NET_IF_H) && defined(__USE_MISC) - --/* GLIBC headers included first so don't define anything -+/* LIBC headers included first so don't define anything - * that would already be defined. */ - - #define __UAPI_DEF_IF_IFCONF 0 -@@ -85,10 +85,10 @@ - - #endif /* _NET_IF_H */ - --/* Coordinate with glibc netinet/in.h header. */ -+/* Coordinate with libc netinet/in.h header. */ - #if defined(_NETINET_IN_H) - --/* GLIBC headers included first so don't define anything -+/* LIBC headers included first so don't define anything - * that would already be defined. */ - #define __UAPI_DEF_IN_ADDR 0 - #define __UAPI_DEF_IN_IPPROTO 0 -@@ -102,7 +102,7 @@ - * if the glibc code didn't define them. This guard matches - * the guard in glibc/inet/netinet/in.h which defines the - * additional in6_addr macros e.g. s6_addr16, and s6_addr32. */ --#if defined(__USE_MISC) || defined (__USE_GNU) -+#if !defined(__GLIBC__) || defined(__USE_MISC) || defined (__USE_GNU) - #define __UAPI_DEF_IN6_ADDR_ALT 0 - #else - #define __UAPI_DEF_IN6_ADDR_ALT 1 -@@ -117,7 +117,7 @@ - #else - - /* Linux headers included first, and we must define everything -- * we need. The expectation is that glibc will check the -+ * we need. The expectation is that the libc will check the - * __UAPI_DEF_* defines and adjust appropriately. */ - #define __UAPI_DEF_IN_ADDR 1 - #define __UAPI_DEF_IN_IPPROTO 1 -@@ -127,7 +127,7 @@ - #define __UAPI_DEF_IN_CLASS 1 - - #define __UAPI_DEF_IN6_ADDR 1 --/* We unconditionally define the in6_addr macros and glibc must -+/* We unconditionally define the in6_addr macros and the libc must - * coordinate. */ - #define __UAPI_DEF_IN6_ADDR_ALT 1 - #define __UAPI_DEF_SOCKADDR_IN6 1 -@@ -149,7 +149,7 @@ - /* If we did not see any headers from any supported C libraries, - * or we are being included in the kernel, then define everything - * that we need. */ --#else /* !defined(__GLIBC__) */ -+#else /* defined(__KERNEL__) */ - - /* Definitions for if.h */ - #define __UAPI_DEF_IF_IFCONF 1 -@@ -182,6 +182,6 @@ - /* Definitions for xattr.h */ - #define __UAPI_DEF_XATTR 1 - --#endif /* __GLIBC__ */ -+#endif /* __KERNEL__ */ - - #endif /* _UAPI_LIBC_COMPAT_H */ diff --git a/target/linux/generic/pending-4.4/272-uapi-if_ether.h-prevent-redefinition-of-struct-ethhd.patch b/target/linux/generic/pending-4.4/272-uapi-if_ether.h-prevent-redefinition-of-struct-ethhd.patch index 9065369040..21494b9256 100644 --- a/target/linux/generic/pending-4.4/272-uapi-if_ether.h-prevent-redefinition-of-struct-ethhd.patch +++ b/target/linux/generic/pending-4.4/272-uapi-if_ether.h-prevent-redefinition-of-struct-ethhd.patch @@ -1,18 +1,20 @@ -From fcbb6fed85ea9ff4feb4f1ebd4f0f235fdaf06b6 Mon Sep 17 00:00:00 2001 -From: David Heidelberger <david.heidelberger@ixit.cz> +From 649affd04813c43e0a72886517fcfccd63230981 Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens <hauke@hauke-m.de> Date: Mon, 29 Jun 2015 16:53:03 +0200 -Subject: [PATCH 3/3] uapi/if_ether.h: prevent redefinition of struct ethhdr +Subject: uapi/if_ether.h: prevent redefinition of struct ethhdr Musl provides its own ethhdr struct definition. Add a guard to prevent its definition of the appropriate musl header has already been included. -Signed-off-by: John Spencer <maillist-linux@barfooze.de> -Tested-by: David Heidelberger <david.heidelberger@ixit.cz> -Signed-off-by: Jonas Gorski <jogo@openwrt.org> +glibc does not implement this header, but when glibc will implement this +they can just define __UAPI_DEF_ETHHDR 0 to make it work with the +kernel. + +Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- - include/uapi/linux/if_ether.h | 3 +++ - include/uapi/linux/libc-compat.h | 11 +++++++++++ - 2 files changed, 14 insertions(+) + include/uapi/linux/if_ether.h | 3 +++ + include/uapi/linux/libc-compat.h | 6 ++++++ + 2 files changed, 9 insertions(+) --- a/include/uapi/linux/if_ether.h +++ b/include/uapi/linux/if_ether.h @@ -40,28 +42,14 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org> #endif /* _UAPI_LINUX_IF_ETHER_H */ --- a/include/uapi/linux/libc-compat.h +++ b/include/uapi/linux/libc-compat.h -@@ -85,6 +85,14 @@ +@@ -227,4 +227,10 @@ - #endif /* _NET_IF_H */ + #endif /* __GLIBC__ */ -+/* musl defines the ethhdr struct itself in its netinet/if_ether.h. -+ * Glibc just includes the kernel header and uses a different guard. */ -+#if defined(_NETINET_IF_ETHER_H) -+#define __UAPI_DEF_ETHHDR 0 -+#else ++/* Definitions for if_ether.h */ ++/* allow libcs like musl to deactivate this, glibc does not implement this. */ ++#ifndef __UAPI_DEF_ETHHDR +#define __UAPI_DEF_ETHHDR 1 +#endif + - /* Coordinate with libc netinet/in.h header. */ - #if defined(_NETINET_IN_H) - -@@ -161,6 +169,9 @@ - /* For the future if glibc adds IFF_LOWER_UP, IFF_DORMANT and IFF_ECHO */ - #define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 1 - -+/* Definitions for if_ether.h */ -+#define __UAPI_DEF_ETHHDR 1 -+ - /* Definitions for in.h */ - #define __UAPI_DEF_IN_ADDR 1 - #define __UAPI_DEF_IN_IPPROTO 1 + #endif /* _UAPI_LIBC_COMPAT_H */ |