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, 53 insertions, 0 deletions

diff --git a/sound/soc/sof/trace.c b/sound/soc/sof/trace.c
new file mode 100644
index 000000000..fe6c67c01
--- /dev/null
+++ b/sound/soc/sof/trace.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2022 Intel Corporation
+
+#include "sof-priv.h"
+
+int sof_fw_trace_init(struct snd_sof_dev *sdev)
+{
+	const struct sof_ipc_fw_tracing_ops *fw_tracing = sof_ipc_get_ops(sdev, fw_tracing);
+
+	if (!fw_tracing) {
+		dev_info(sdev->dev, "Firmware tracing is not available\n");
+		sdev->fw_trace_is_supported = false;
+
+		return 0;
+	}
+
+	return fw_tracing->init(sdev);
+}
+
+void sof_fw_trace_free(struct snd_sof_dev *sdev)
+{
+	if (!sdev->fw_trace_is_supported)
+		return;
+
+	if (sdev->ipc->ops->fw_tracing->free)
+		sdev->ipc->ops->fw_tracing->free(sdev);
+}
+
+void sof_fw_trace_fw_crashed(struct snd_sof_dev *sdev)
+{
+	if (!sdev->fw_trace_is_supported)
+		return;
+
+	if (sdev->ipc->ops->fw_tracing->fw_crashed)
+		sdev->ipc->ops->fw_tracing->fw_crashed(sdev);
+}
+
+void sof_fw_trace_suspend(struct snd_sof_dev *sdev, pm_message_t pm_state)
+{
+	if (!sdev->fw_trace_is_supported)
+		return;
+
+	sdev->ipc->ops->fw_tracing->suspend(sdev, pm_state);
+}
+
+int sof_fw_trace_resume(struct snd_sof_dev *sdev)
+{
+	if (!sdev->fw_trace_is_supported)
+		return 0;
+
+	return sdev->ipc->ops->fw_tracing->resume(sdev);
+}