Initial commit

package/network/utils/xdp-tools/patches/010-configure-respect-LDFLAGS.patch

@@ -0,0 +1,29 @@
+--- a/configure
++++ b/configure
+@@ -191,7 +191,7 @@ int main(int argc, char **argv) {
+     return 0;
+ }
+ EOF
+-    libpcap_err=$($CC -o $TMPDIR/libpcaptest $TMPDIR/libpcaptest.c  $LIBPCAP_CFLAGS $LIBPCAP_LDLIBS 2>&1)
++    libpcap_err=$($CC -o $TMPDIR/libpcaptest $TMPDIR/libpcaptest.c  $LIBPCAP_CFLAGS $LIBPCAP_LDLIBS $LDFLAGS 2>&1)
+     if [ "$?" -eq "0" ]; then
+         echo "HAVE_PCAP:=y" >>$CONFIG
+         [ -n "$LIBPCAP_CFLAGS" ] && echo 'CFLAGS += ' $LIBPCAP_CFLAGS >> $CONFIG
+@@ -267,7 +267,7 @@ int main(int argc, char **argv) {
+     return 0;
+ }
+ EOF
+-    compile_cmd="$CC -o $TMPDIR/libbpftest $TMPDIR/libbpftest.c -Werror $LIBBPF_CFLAGS $LIBBPF_LDLIBS"
++    compile_cmd="$CC -o $TMPDIR/libbpftest $TMPDIR/libbpftest.c -Werror $LIBBPF_CFLAGS $LIBBPF_LDLIBS $LDFLAGS"
+     libbpf_err=$($compile_cmd 2>&1)
+     if [ "$?" -eq "0" ]; then
+         echo "HAVE_FEATURES+=${config_var}" >>"$CONFIG"
+@@ -345,7 +345,7 @@ int main(int argc, char **argv) {
+ }
+ EOF
+ 
+-        libbpf_err=$($CC -o $TMPDIR/libbpftest $TMPDIR/libbpftest.c -Werror $LIBBPF_CFLAGS $LIBBPF_LDLIBS 2>&1)
++        libbpf_err=$($CC -o $TMPDIR/libbpftest $TMPDIR/libbpftest.c -Werror $LIBBPF_CFLAGS $LIBBPF_LDLIBS $LDFLAGS 2>&1)
+         if [ "$?" -eq "0" ]; then
+             echo "SYSTEM_LIBBPF:=y" >>$CONFIG
+             echo "LIBBPF_VERSION=$LIBBPF_VERSION" >>$CONFIG

package/network/utils/xdp-tools/patches/020-libxdp-Use-__noinline__-reserved-attribute-for-XDP-d.patch

@@ -0,0 +1,49 @@
+From 1f160c287c14b4300c4248752e20da5981c9763e Mon Sep 17 00:00:00 2001
+From: Christian Marangi <ansuelsmth@gmail.com>
+Date: Wed, 18 Jan 2023 19:00:54 +0100
+Subject: [PATCH] libxdp: Use __noinline__ reserved attribute for XDP
+ dispatcher
+
+The use of noinline is wrong as noline is not a reserved attribute and
+with gcc12 this became an error. Use the reserved __noinline__ attribute
+to fix compilation error.
+
+Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+[a.heider: adapt lib/libxdp/protocol.org too]
+Signed-off-by: Andre Heider <a.heider@gmail.com>
+---
+ lib/libxdp/protocol.org        | 2 +-
+ lib/libxdp/xdp-dispatcher.c.in | 4 ++--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+--- a/lib/libxdp/protocol.org
++++ b/lib/libxdp/protocol.org
+@@ -59,7 +59,7 @@ static volatile const struct xdp_dispatc
+ /* The volatile return value prevents the compiler from assuming it knows the
+  * return value and optimising based on that.
+  */
+-__attribute__ ((noinline))
++__attribute__ ((__noinline__))
+ int prog0(struct xdp_md *ctx) {
+         volatile int ret = XDP_DISPATCHER_RETVAL;
+ 
+--- a/lib/libxdp/xdp-dispatcher.c.in
++++ b/lib/libxdp/xdp-dispatcher.c.in
+@@ -29,7 +29,7 @@ static volatile const struct xdp_dispatc
+  * return value and optimising based on that.
+  */
+ forloop(`i', `0', NUM_PROGS,
+-`__attribute__ ((noinline))
++`__attribute__ ((__noinline__))
+ int format(`prog%d', i)(struct xdp_md *ctx) {
+         volatile int ret = XDP_DISPATCHER_RETVAL;
+ 
+@@ -39,7 +39,7 @@ int format(`prog%d', i)(struct xdp_md *c
+ }
+ ')
+ 
+-__attribute__ ((noinline))
++__attribute__ ((__noinline__))
+ int compat_test(struct xdp_md *ctx) {
+         volatile int ret = XDP_DISPATCHER_RETVAL;
+ 

package/network/utils/xdp-tools/patches/022-xdp-dump-add-missing-perf_event-include-for-bpf-and-.patch

@@ -0,0 +1,34 @@
+From 0388d7447de027e0d2369d6b8a9c58ea0f8f027c Mon Sep 17 00:00:00 2001
+From: Christian Marangi <ansuelsmth@gmail.com>
+Date: Wed, 18 Jan 2023 20:37:12 +0100
+Subject: [PATCH] xdp-dump: add missing perf_event include for bpf and xdp
+
+Add missing perf_event include needed for struct perf_event_header for
+bpf and xdp.
+
+Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+---
+ xdp-dump/xdpdump_bpf.c | 1 +
+ xdp-dump/xdpdump_xdp.c | 1 +
+ 2 files changed, 2 insertions(+)
+
+--- a/xdp-dump/xdpdump_bpf.c
++++ b/xdp-dump/xdpdump_bpf.c
+@@ -4,6 +4,7 @@
+  * Include files
+  *****************************************************************************/
+ #include <stdbool.h>
++#include <linux/perf_event.h>
+ #include <linux/bpf.h>
+ #include <bpf/bpf_helpers.h>
+ #include <bpf/bpf_trace_helpers.h>
+--- a/xdp-dump/xdpdump_xdp.c
++++ b/xdp-dump/xdpdump_xdp.c
+@@ -4,6 +4,7 @@
+  * Include files
+  *****************************************************************************/
+ #include <stdbool.h>
++#include <linux/perf_event.h>
+ #include <linux/bpf.h>
+ #include <bpf/bpf_helpers.h>
+ #include <bpf/bpf_trace_helpers.h>

package/network/utils/xdp-tools/patches/024-lib-allow-overwriting-W-flags-via-BPF_CFLAGS.patch

@@ -0,0 +1,49 @@
+From e2d8eae9477f6ba41ab75ad77202f235e34c04f7 Mon Sep 17 00:00:00 2001
+From: Andre Heider <a.heider@gmail.com>
+Date: Wed, 18 Jan 2023 22:30:23 +0100
+Subject: [PATCH] lib: allow overwriting -W* flags via BPF_CFLAGS
+
+The bpf header file situation is a mess, and the default warning
+compiler flags may not be suitable everywhere, especially with -Werror
+in the mix.
+
+Move BPF_CFLAGS further down, so these can be overwritten by builders.
+
+Signed-off-by: Andre Heider <a.heider@gmail.com>
+---
+ lib/common.mk       | 2 +-
+ lib/libxdp/Makefile | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/lib/common.mk
++++ b/lib/common.mk
+@@ -111,12 +111,12 @@ $(XDP_OBJ): %.o: %.c $(KERN_USER_H) $(EX
+ 	$(QUIET_CLANG)$(CLANG) -S \
+ 	    -target $(BPF_TARGET) \
+ 	    -D __BPF_TRACING__ \
+-	    $(BPF_CFLAGS) \
+ 	    -Wall \
+ 	    -Wno-unused-value \
+ 	    -Wno-pointer-sign \
+ 	    -Wno-compare-distinct-pointer-types \
+ 	    -Werror \
++	    $(BPF_CFLAGS) \
+ 	    -O2 -emit-llvm -c -g -o ${@:.o=.ll} $<
+ 	$(QUIET_LLC)$(LLC) -march=$(BPF_TARGET) -filetype=obj -o $@ ${@:.o=.ll}
+ 
+--- a/lib/libxdp/Makefile
++++ b/lib/libxdp/Makefile
+@@ -138,12 +138,12 @@ $(XDP_OBJS): %.o: %.c $(BPF_HEADERS) $(L
+ 	$(QUIET_CLANG)$(CLANG) -S \
+ 	    -target $(BPF_TARGET) \
+ 	    -D __BPF_TRACING__ \
+-	    $(BPF_CFLAGS) \
+ 	    -Wall \
+ 	    -Wno-unused-value \
+ 	    -Wno-pointer-sign \
+ 	    -Wno-compare-distinct-pointer-types \
+ 	    -Werror \
++	    $(BPF_CFLAGS) \
+ 	    -O2 -emit-llvm -c -g -o ${@:.o=.ll} $<
+ 	$(QUIET_LLC)$(LLC) -march=$(BPF_TARGET) -filetype=obj -o $@ ${@:.o=.ll}
+ 

package/network/utils/xdp-tools/patches/025-Add-BPF_LDFLAGS-to-allow-overwriting-llc-s-march-arg.patch

@@ -0,0 +1,55 @@
+From 7b00d4a90af1d7bff50833ffe1216cf59592353a Mon Sep 17 00:00:00 2001
+From: Andre Heider <a.heider@gmail.com>
+Date: Wed, 18 Jan 2023 22:42:28 +0100
+Subject: [PATCH] Add BPF_LDFLAGS to allow overwriting llc's -march argument
+
+The argument to clang's -target isn't necessarily the same as to
+llc's -march.
+
+Analogue to BPF_CFLAGS, introduce BPF_LDFLAGS to allow e.g.:
+BPF_TARGET="mipsel-linux-gnu" BPF_LDFLAGS="-march=bpfel -mcpu=v3"
+
+Signed-off-by: Andre Heider <a.heider@gmail.com>
+---
+ configure           | 2 ++
+ lib/common.mk       | 2 +-
+ lib/libxdp/Makefile | 2 +-
+ 3 files changed, 4 insertions(+), 2 deletions(-)
+
+--- a/configure
++++ b/configure
+@@ -17,10 +17,12 @@ check_opts()
+     : ${DYNAMIC_LIBXDP:=0}
+     : ${MAX_DISPATCHER_ACTIONS:=10}
+     : ${BPF_TARGET:=bpf}
++    : ${BPF_LDFLAGS:=-march=$(BPF_TARGET)}
+     echo "PRODUCTION:=${PRODUCTION}" >>$CONFIG
+     echo "DYNAMIC_LIBXDP:=${DYNAMIC_LIBXDP}" >>$CONFIG
+     echo "MAX_DISPATCHER_ACTIONS:=${MAX_DISPATCHER_ACTIONS}" >>$CONFIG
+     echo "BPF_TARGET:=${BPF_TARGET}" >>$CONFIG
++    echo "BPF_LDFLAGS:=${BPF_LDFLAGS}" >>$CONFIG
+ }
+ 
+ find_tool()
+--- a/lib/common.mk
++++ b/lib/common.mk
+@@ -118,7 +118,7 @@ $(XDP_OBJ): %.o: %.c $(KERN_USER_H) $(EX
+ 	    -Werror \
+ 	    $(BPF_CFLAGS) \
+ 	    -O2 -emit-llvm -c -g -o ${@:.o=.ll} $<
+-	$(QUIET_LLC)$(LLC) -march=$(BPF_TARGET) -filetype=obj -o $@ ${@:.o=.ll}
++	$(QUIET_LLC)$(LLC) $(BPF_LDFLAGS) -filetype=obj -o $@ ${@:.o=.ll}
+ 
+ $(BPF_SKEL_H): %.skel.h: %.bpf.o
+ 	$(QUIET_GEN)$(BPFTOOL) gen skeleton $< name ${@:.skel.h=} > $@
+--- a/lib/libxdp/Makefile
++++ b/lib/libxdp/Makefile
+@@ -145,7 +145,7 @@ $(XDP_OBJS): %.o: %.c $(BPF_HEADERS) $(L
+ 	    -Werror \
+ 	    $(BPF_CFLAGS) \
+ 	    -O2 -emit-llvm -c -g -o ${@:.o=.ll} $<
+-	$(QUIET_LLC)$(LLC) -march=$(BPF_TARGET) -filetype=obj -o $@ ${@:.o=.ll}
++	$(QUIET_LLC)$(LLC) $(BPF_LDFLAGS) -filetype=obj -o $@ ${@:.o=.ll}
+ 
+ .PHONY: man
+ ifeq ($(EMACS),)