From 2349e899e76f3203b8aa4f860f945f432e67a5cd Mon Sep 17 00:00:00 2001 From: Adam Shih Date: Mon, 13 Feb 2023 14:35:40 +0800 Subject: [PATCH] create memory dump Bug: 240530709 Test: adb bugreport Change-Id: Icdd62b1ff1d7a80d089c795bcf2ec0baa81905a4 --- soc/Android.bp | 7 +++++++ soc/dump_memory.sh | 22 ++++++++++++++++++++++ soc/sepolicy/dump_memory.te | 8 ++++++++ soc/sepolicy/dumpstate.te | 2 ++ soc/sepolicy/file.te | 3 +++ soc/sepolicy/file_contexts | 4 +++- soc/sepolicy/genfs_contexts | 3 +++ soc/soc.mk | 2 ++ 8 files changed, 50 insertions(+), 1 deletion(-) create mode 100644 soc/dump_memory.sh create mode 100644 soc/sepolicy/dump_memory.te create mode 100644 soc/sepolicy/dumpstate.te create mode 100644 soc/sepolicy/file.te diff --git a/soc/Android.bp b/soc/Android.bp index 9600855..57b8577 100644 --- a/soc/Android.bp +++ b/soc/Android.bp @@ -2,6 +2,13 @@ package { default_applicable_licenses: ["Android-Apache-2.0"], } +sh_binary { + name: "dump_memory.sh", + src: "dump_memory.sh", + vendor: true, + sub_dir: "dump", +} + cc_binary { name: "dump_soc", srcs: ["dump_soc.cpp"], diff --git a/soc/dump_memory.sh b/soc/dump_memory.sh new file mode 100644 index 0000000..5f4bde7 --- /dev/null +++ b/soc/dump_memory.sh @@ -0,0 +1,22 @@ +#!/vendor/bin/sh +echo "------ ION HEAPS ------" +for d in $(ls -d /d/ion/*) +do + if [ -f $d ]; then + echo --- $d + cat $d + else + for f in $(ls $d) + do + echo --- $d/$f + cat $d/$f + done + fi +done + +echo "------ dmabuf info ------" +cat "/d/dma_buf/bufinfo" + +echo "------ Page Pinner - longterm pin ------" +cat "/sys/kernel/debug/page_pinner/buffer" + diff --git a/soc/sepolicy/dump_memory.te b/soc/sepolicy/dump_memory.te new file mode 100644 index 0000000..47f9f07 --- /dev/null +++ b/soc/sepolicy/dump_memory.te @@ -0,0 +1,8 @@ +pixel_bugreport(dump_memory) +allow dump_memory vendor_toolbox_exec:file execute_no_trans; +userdebug_or_eng(` + allow dump_memory vendor_dmabuf_debugfs:file r_file_perms; + allow dump_memory vendor_page_pinner_debugfs:dir r_dir_perms; + allow dump_memory vendor_page_pinner_debugfs:file r_file_perms; +') + diff --git a/soc/sepolicy/dumpstate.te b/soc/sepolicy/dumpstate.te new file mode 100644 index 0000000..1d23bb4 --- /dev/null +++ b/soc/sepolicy/dumpstate.te @@ -0,0 +1,2 @@ +dontaudit dumpstate vendor_dmabuf_debugfs:file r_file_perms; + diff --git a/soc/sepolicy/file.te b/soc/sepolicy/file.te new file mode 100644 index 0000000..553825a --- /dev/null +++ b/soc/sepolicy/file.te @@ -0,0 +1,3 @@ +type vendor_dmabuf_debugfs, fs_type, debugfs_type; +type vendor_page_pinner_debugfs, fs_type, debugfs_type; + diff --git a/soc/sepolicy/file_contexts b/soc/sepolicy/file_contexts index 81b1e68..23a91e5 100644 --- a/soc/sepolicy/file_contexts +++ b/soc/sepolicy/file_contexts @@ -1 +1,3 @@ -/vendor/bin/dump/dump_soc u:object_r:dump_soc_exec:s0 +/vendor/bin/dump/dump_soc u:object_r:dump_soc_exec:s0 +/vendor/bin/dump/dump_memory\.sh u:object_r:dump_memory_exec:s0 + diff --git a/soc/sepolicy/genfs_contexts b/soc/sepolicy/genfs_contexts index 07ae4b8..454ab6a 100644 --- a/soc/sepolicy/genfs_contexts +++ b/soc/sepolicy/genfs_contexts @@ -5,3 +5,6 @@ genfscon sysfs /devices/system/chip-id/product_id u:object_r:sysfs_chip_id: genfscon sysfs /devices/system/chip-id/revision u:object_r:sysfs_chip_id:s0 genfscon sysfs /devices/system/chip-id/raw_str u:object_r:sysfs_chip_id:s0 +genfscon debugfs /dma_buf/bufinfo u:object_r:vendor_dmabuf_debugfs:s0 +genfscon debugfs /page_pinner u:object_r:vendor_page_pinner_debugfs:s0 + diff --git a/soc/soc.mk b/soc/soc.mk index 75b134e..b9b6208 100644 --- a/soc/soc.mk +++ b/soc/soc.mk @@ -1,3 +1,5 @@ BOARD_VENDOR_SEPOLICY_DIRS += device/google/gs-common/soc/sepolicy PRODUCT_PACKAGES += dump_soc +PRODUCT_PACKAGES_DEBUG += dump_memory.sh +