[Buildroot] [PATCH 1/1] google-breakpad: Integration into Makefile and Config.in

[Pascal Huerst <pascal.huerst@gmail.com>]

Signed-off-by: Pascal Huerst <pascal.huerst@gmail.com>
---
 Config.in                                  | 28 ++++++++++++++++++++++++++++
 package/google-breakpad/gen-syms.sh        | 25 +++++++++++++++++++++++++
 package/google-breakpad/google-breakpad.mk |  8 ++++++++
 3 files changed, 61 insertions(+)
 create mode 100755 package/google-breakpad/gen-syms.sh

diff --git a/Config.in b/Config.in
index 50968fb..a6b6e97 100644
--- a/Config.in
+++ b/Config.in
@@ -484,6 +484,34 @@ config BR2_OPTIMIZE_S
 
 endchoice
 
+config BR2_GOOGLE_BREAKPAD_ENABLE
+	bool "Enable google-breakpad support"
+	select BR2_PACKAGE_GOOGLE_BREAKPAD
+	help
+	  This option will enable the use of google breakpad, a library and tool
+	  suite that allows you to distribute an application to users with
+	  compiler-provided debugging information removed, record crashes in
+	  compact "minidump" files, send them back to your server and produce
+	  C and C++ stack traces from these minidumps.  Breakpad can also write
+	  minidumps on request for programs that have not crashed.
+
+if BR2_GOOGLE_BREAKPAD_ENABLE
+
+config BR2_GOOGLE_BREAKPAD_INCLUDE_FILES
+	string "List of executables and libraries to extract symbols from"
+	default ""
+	help
+	  You may specify a space-separated list of binaries and libraries
+	  with full paths relative to $(TARGET_DIR) of which debug symbols 
+	  will be dumped for further use with google breakpad.
+
+	  A directory structure that can be used by minidump-stackwalk will
+	  be created at:
+
+	  $(STAGING_DIR)/usr/share/google-breakpad-symbols
+
+endif
+
 config BR2_ENABLE_SSP
 	bool "build code with Stack Smashing Protection"
 	depends on BR2_TOOLCHAIN_HAS_SSP
diff --git a/package/google-breakpad/gen-syms.sh b/package/google-breakpad/gen-syms.sh
new file mode 100755
index 0000000..f29c8fe
--- /dev/null
+++ b/package/google-breakpad/gen-syms.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+STAGING_DIR="${1}"
+TARGET_DIR="${2}"
+shift 2
+
+SYMBOLS_DIR="${STAGING_DIR}/usr/share/google-breakpad-symbols"
+rm -rf "${SYMBOLS_DIR}"
+mkdir -p "${SYMBOLS_DIR}"
+
+for FILE in $(eval ls "${TARGET_DIR}/${@}"); do
+	if [ -d "${FILE}" ]; then
+		printf "Error: '%s' is a directory\n" "${FILE}" >&2
+		exit 1
+	fi
+	if dump_syms "${FILE}" > "${SYMBOLS_DIR}/tmp.sym" 2>/dev/null; then
+		HASH=$(head -n1 "${SYMBOLS_DIR}/tmp.sym" | cut -d ' ' -f 4);
+		FILENAME=$(basename "$FILE");
+		mkdir -p "${SYMBOLS_DIR}/${FILENAME}/${HASH}"
+		mv "${SYMBOLS_DIR}/tmp.sym" "${SYMBOLS_DIR}/${FILENAME}/${HASH}/${FILENAME}.sym";
+	else
+		printf "Error dumping symbols for: '%s'\n" "${FILE}" >&2
+		exit 1
+	fi
+done
+rm -rf "${SYMBOLS_DIR}/tmp"
diff --git a/package/google-breakpad/google-breakpad.mk b/package/google-breakpad/google-breakpad.mk
index bf857ba..622f7a6 100644
--- a/package/google-breakpad/google-breakpad.mk
+++ b/package/google-breakpad/google-breakpad.mk
@@ -14,5 +14,13 @@ GOOGLE_BREAKPAD_INSTALL_STAGING = YES
 GOOGLE_BREAKPAD_LICENSE = BSD-3c
 GOOGLE_BREAKPAD_LICENSE_FILES = LICENSE
 
+#ifeq ($(BR2_PACKAGE_GOOGLE_BREAKPAD),y)
+define GOOGLE_BREAKPAD_EXTRACT_SYMBOLS
+	$(EXTRA_ENV) package/google-breakpad/gen-syms.sh $(STAGING_DIR) \
+		$(TARGET_DIR) $(call qstrip,$(BR2_GOOGLE_BREAKPAD_INCLUDE_FILES))
+endef
+TARGET_FINALIZE_HOOKS += GOOGLE_BREAKPAD_EXTRACT_SYMBOLS
+#endif
+
 $(eval $(autotools-package))
 $(eval $(host-autotools-package))
-- 
1.9.3