From e44035375ed927dc52073efd13c5d3df65ca7b52 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Fri, 21 Jun 2024 15:08:06 +0200
Subject: [PATCH] debug-info-defconfig: add debug symbols needed by pahole

With this we can see the structures

pahole -C 'snd_sof_dev' sound/soc/sof/snd-sof.o
struct snd_sof_dev {
	struct device *            dev;                  /*     0     8 */
	spinlock_t                 ipc_lock;             /*     8    72 */
	/* --- cacheline 1 boundary (64 bytes) was 16 bytes ago --- */
	spinlock_t                 hw_lock;              /*    80    72 */
	/* --- cacheline 2 boundary (128 bytes) was 24 bytes ago --- */
	bool                       dspless_mode_selected; /*   152     1 */

	/* XXX 7 bytes hole, try to pack */

	struct sof_firmware        basefw;               /*   160    16 */

	/* XXX last struct has 4 bytes of padding */

	struct snd_soc_component_driver plat_drv;        /*   176   384 */
...

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 .github/workflows/buildtest.yml | 20 ++++++++++++++++++++
 debug-info-defconfig            |  3 +++
 kconfig-sof-default.sh          |  1 +
 3 files changed, 24 insertions(+)
 create mode 100644 debug-info-defconfig

diff --git a/.github/workflows/buildtest.yml b/.github/workflows/buildtest.yml
index 4f26b60..eb107de 100644
--- a/.github/workflows/buildtest.yml
+++ b/.github/workflows/buildtest.yml
@@ -28,6 +28,11 @@ jobs:
           sudo apt update
           sudo apt install -y libelf-dev
 
+      - name: Install pahole
+        run: |
+          sudo apt update
+          sudo apt install -y pahole
+
       - name: Install debhelper
         run: |
           sudo apt update
@@ -54,6 +59,16 @@ jobs:
           repository: 'thesofproject/linux'
           path: 'linux'
 
+      - name: Install libelf
+        run: |
+          sudo apt update
+          sudo apt install -y libelf-dev
+
+      - name: Install pahole
+        run: |
+          sudo apt update
+          sudo apt install -y pahole
+
       - name: build start
         run: |
           export ARCH=i386 KCFLAGS="-Wall -Werror"
@@ -108,6 +123,11 @@ jobs:
           sudo apt update
           sudo apt install -y libelf-dev
 
+      - name: Install pahole
+        run: |
+          sudo apt update
+          sudo apt install -y pahole
+
       - name: build start
         run: |
           export ARCH=x86_64 CC=clang KCFLAGS="-Wall -Werror"
diff --git a/debug-info-defconfig b/debug-info-defconfig
new file mode 100644
index 0000000..210e776
--- /dev/null
+++ b/debug-info-defconfig
@@ -0,0 +1,3 @@
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
+CONFIG_DEBUG_INFO_BTF=y
diff --git a/kconfig-sof-default.sh b/kconfig-sof-default.sh
index f0fff2e..5baa0db 100755
--- a/kconfig-sof-default.sh
+++ b/kconfig-sof-default.sh
@@ -22,4 +22,5 @@ $COMMAND .config \
 	 "$KCONFIG_DIR"/soundwire-defconfig \
 	 "$KCONFIG_DIR"/soundwire-codecs-defconfig \
 	 "$KCONFIG_DIR"/bpf-defconfig \
+	 "$KCONFIG_DIR"/debug-info-defconfig \
 	 "$@"