new file mode 100644
@@ -0,0 +1,43 @@
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sun, 18 Oct 2026 18:00:00 -0700
+Subject: [PATCH] lib/libxdp: Embed BPF objects with .incbin instead of ld --format=binary
+
+The embedded BPF objects are made with a relocatable link of a raw binary
+input (cc -r -Wl,--format=binary). When the only input is a raw binary,
+the linker has no real object to take target attributes from. With lld on
+riscv64 the result has e_flags 0 (soft-float ABI) and a
+.note.gnu.property where every CFI feature bit is set. Linking it into
+libxdp users then fails:
+
+ ld.lld: error: libxdp.a(xdp-dispatcher.embed.o): file has conflicting
+ properties: GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_UNLABELED and
+ GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_FUNC_SIG
+ ld.lld: error: libxdp.a(xdp-dispatcher.embed.o): cannot link object
+ files with different floating-point ABI from Scrt1.o
+
+Instead, assemble a small stub that pulls in the BPF object with .incbin.
+The compiler driver then emits a normal object for the target ABI. The
+_binary_<name>_start/_end symbol names that libxdp.c uses stay the same.
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ lib/libxdp/Makefile | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/lib/libxdp/Makefile b/lib/libxdp/Makefile
+--- a/lib/libxdp/Makefile
++++ b/lib/libxdp/Makefile
+@@ -134,8 +134,10 @@
+ $(QUIET_M4)$(M4) $(DEFINES) $< > $@ || ( ret=$$?; rm -f $@; exit $$ret )
+
+ $(EMBEDDED_XDP_OBJS): %.embed.o: %.o
+- $(QUIET_CC)$(CC) -r -nostdlib -Wl,-z,noexecstack,--format=binary $(LDFLAGS) -o $@ $<
+- $(Q)$(OBJCOPY) --rename-section .data=.rodata,alloc,load,readonly,data,contents $@
++ $(QUIET_CC)SYM=_binary_$$(echo '$<' | sed 's/[^A-Za-z0-9_]/_/g'); \
++ printf '\t.section .rodata,"a"\n\t.balign 8\n\t.globl %s_start\n%s_start:\n\t.incbin "%s"\n\t.globl %s_end\n%s_end:\n' \
++ $$SYM $$SYM '$<' $$SYM $$SYM | \
++ $(CC) -c -x assembler -Wa,--noexecstack -o $@ -
+
+ $(XDP_OBJS): %.o: %.c $(BPF_HEADERS) $(LIBMK)
+ $(QUIET_CLANG)$(CLANG) -target $(BPF_TARGET) $(BPF_CFLAGS) -O2 -c -g -o $@ $<
@@ -18,6 +18,7 @@ SRC_URI = " \
file://0002-lib-libxdp-Makefile-use-cp-fRd-to-preserve-symlinks-.patch \
file://0003-lib-util-avoid-struct-ethhdr-redefinition-on-musl.patch \
file://0004-xdp-filter-xdp-dump-avoid-struct-ethhdr-redefinitio.patch \
+ file://0005-lib-libxdp-Embed-BPF-objects-with-.incbin-instead-of.patch \
"
SRCREV = "8fbad9f0af621a22aa87ff2520b3735915b1f0fd"
libxdp turns its BPF programs into linkable objects with a relocatable link of a raw binary input (cc -r -Wl,--format=binary). Because there is no real object among the inputs, lld on riscv64 writes an object with e_flags 0 (soft-float ABI) and a GNU property note with every CFI feature bit set. Linking it then fails with clang: ld.lld: error: libxdp.a(xdp-dispatcher.embed.o): file has conflicting properties: GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_UNLABELED and GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_FUNC_SIG ld.lld: error: libxdp.a(xdp-dispatcher.embed.o): cannot link object files with different floating-point ABI from Scrt1.o Build the embed objects from a small .incbin assembly stub instead, so the compiler driver emits them with the correct target ABI. AI-Generated: Uses Claude Code Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com> --- ...-BPF-objects-with-.incbin-instead-of.patch | 43 +++++++++++++++++++ .../xdp-tools/xdp-tools_1.6.3.bb | 1 + 2 files changed, 44 insertions(+) create mode 100644 meta-oe/recipes-support/xdp-tools/files/0005-lib-libxdp-Embed-BPF-objects-with-.incbin-instead-of.patch