objtool: Validate disassembler headers in libopcodes probegrafted

commit 3f2de814c059 ("objtool: Fix libopcodes linking with static libraries")
tested for libopcodes availability by linking a test snippet with a forward
declaration of disassemble_init_for_target().

However, testing symbol linkage with an extern declaration only verifies
the presence of the library (.so/.a) and bypasses checking for development
headers (binutils-dev). On systems where libopcodes is present without
development headers installed, the probe succeeds, enabling BUILD_DISAS.
Subsequent compilation of objtool then fails:

  fatal error: 'bfd.h' file not found
    113 | #include <bfd.h>

Additionally, the probe invokes $(HOSTCC) without $(HOSTCFLAGS), ignoring
any sysroot or include flags specified for the host compiler.

Fix this by including <bfd.h> and <dis-asm.h> directly in the test snippet,
passing $(HOSTCFLAGS) so host compiler options are respected, and defining
PACKAGE="objtool" to satisfy the configuration check in <bfd.h>.

Fixes: 3f2de814c059 ("objtool: Fix libopcodes linking with static libraries")
Fixes: 436326bc525d ("objtool: fix build failure due to missing libopcodes check")
Reported-by: Alice Ryhl <aliceryhl@google.com>
Assisted-by: Antigravity:Gemini-Next
Signed-off-by: Ulises Mendez Martinez <umendez@google.com>
Link: https://patch.msgid.link/20260904150710.2997558-1-umendez@google.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/sound/soc/sof/Makefile b/sound/soc/sof/Makefile
new file mode 100644
index 000000000..b0b22e6eb
--- /dev/null
+++ b/sound/soc/sof/Makefile
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+
+snd-sof-y := core.o ops.o loader.o ipc.o pcm.o pm.o debug.o topology.o\
+		control.o trace.o iomem-utils.o sof-audio.o stream-ipc.o\
+		fw-file-profile.o
+
+# IPC implementations
+ifneq ($(CONFIG_SND_SOC_SOF_IPC3),)
+snd-sof-y +=	ipc3.o ipc3-loader.o ipc3-topology.o ipc3-control.o ipc3-pcm.o\
+		ipc3-dtrace.o
+endif
+ifneq ($(CONFIG_SND_SOC_SOF_IPC4),)
+snd-sof-y += ipc4.o ipc4-loader.o ipc4-topology.o ipc4-control.o ipc4-pcm.o\
+		ipc4-mtrace.o ipc4-telemetry.o
+endif
+
+# SOF client support
+ifneq ($(CONFIG_SND_SOC_SOF_CLIENT),)
+snd-sof-y += sof-client.o
+endif
+
+snd-sof-$(CONFIG_SND_SOC_SOF_COMPRESS) += compress.o
+
+snd-sof-pci-y := sof-pci-dev.o
+snd-sof-acpi-y := sof-acpi-dev.o
+snd-sof-of-y := sof-of-dev.o
+
+snd-sof-ipc-flood-test-y := sof-client-ipc-flood-test.o
+snd-sof-ipc-msg-injector-y := sof-client-ipc-msg-injector.o
+snd-sof-ipc-kernel-injector-y := sof-client-ipc-kernel-injector.o
+snd-sof-probes-y := sof-client-probes.o
+ifneq ($(CONFIG_SND_SOC_SOF_IPC3),)
+snd-sof-probes-y += sof-client-probes-ipc3.o
+endif
+ifneq ($(CONFIG_SND_SOC_SOF_IPC4),)
+snd-sof-probes-y += sof-client-probes-ipc4.o
+endif
+
+snd-sof-nocodec-y := nocodec.o
+
+snd-sof-utils-y := sof-utils.o
+
+obj-$(CONFIG_SND_SOC_SOF) += snd-sof.o
+obj-$(CONFIG_SND_SOC_SOF_NOCODEC) += snd-sof-nocodec.o
+
+obj-$(CONFIG_SND_SOC_SOF) += snd-sof-utils.o
+
+obj-$(CONFIG_SND_SOC_SOF_ACPI_DEV) += snd-sof-acpi.o
+obj-$(CONFIG_SND_SOC_SOF_OF_DEV) += snd-sof-of.o
+obj-$(CONFIG_SND_SOC_SOF_PCI_DEV) += snd-sof-pci.o
+
+obj-$(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST) += snd-sof-ipc-flood-test.o
+obj-$(CONFIG_SND_SOC_SOF_DEBUG_IPC_MSG_INJECTOR) += snd-sof-ipc-msg-injector.o
+obj-$(CONFIG_SND_SOC_SOF_DEBUG_IPC_KERNEL_INJECTOR) += snd-sof-ipc-kernel-injector.o
+obj-$(CONFIG_SND_SOC_SOF_DEBUG_PROBES) += snd-sof-probes.o
+
+obj-$(CONFIG_SND_SOC_SOF_INTEL_TOPLEVEL) += intel/
+obj-$(CONFIG_SND_SOC_SOF_IMX_TOPLEVEL) += imx/
+obj-$(CONFIG_SND_SOC_SOF_AMD_TOPLEVEL) += amd/
+obj-$(CONFIG_SND_SOC_SOF_XTENSA) += xtensa/
+obj-$(CONFIG_SND_SOC_SOF_MTK_TOPLEVEL) += mediatek/