From 6273edc2e7179a4bd1a542de69871084e1f18daa Mon Sep 17 00:00:00 2001
From: Robin Watts <robin.watts@artifex.com>
Date: Wed, 14 Sep 2016 15:03:05 +0100
Subject: Add scripts to remove/replace 'static' from functions.

Getting a backtrace out with missing functions makes the
backtrace much less useful. Some backtrace routines (such
as that used by Memento on Android) are incapable of
resolving static functions.

We therefore provide 2 scripts (scripts/destatic.sh and
scripts/restatic.sh) that respectively remove and replace
the 'static' from function definitions.

The scripts do not affect "static inline" or "static const"
definitions, and they are are restricted to working in the
source directory (excluding source/tools), thirdparty/mujs
and the platform/{java,android} directories.

The transformed source should NOT be checked in.

To avoid problems with clashing symbols, some functions are
renamed or tweaked slightly in this patch.
---
 scripts/destatic.sh | 16 ++++++++++++++++
 scripts/restatic.sh |  8 ++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 scripts/destatic.sh
 create mode 100644 scripts/restatic.sh

(limited to 'scripts')

diff --git a/scripts/destatic.sh b/scripts/destatic.sh
new file mode 100644
index 00000000..b6b80701
--- /dev/null
+++ b/scripts/destatic.sh
@@ -0,0 +1,16 @@
+# Simple script to make all static functions in the main source
+# unstatic. This allows backtracing functions (such as that used
+# in Memento, in particular on Android) to pick up symbol names
+# nicely.
+#
+# This script can be reversed using restatic.sh
+
+# Allow for the fact that mujs might not be present
+MUJS_SRC=
+test -d thirdparty/mujs && MUJS_SRC=thirdparty/mujs
+
+# Convert everything
+sed -i '/^static inline/b;/^static const/b;s!^static !/\*static \*/!' $(find source platform/android/viewer platform/java $MUJS_SRC -name '*.c')
+
+# Convert source/tools back again.
+sed -i 's!/\*static \*/!static !' $(find source/tools -name '*.c')
diff --git a/scripts/restatic.sh b/scripts/restatic.sh
new file mode 100644
index 00000000..f3f5b7a4
--- /dev/null
+++ b/scripts/restatic.sh
@@ -0,0 +1,8 @@
+# Simple script to revert the changes made by destatic.sh
+
+# Allow for the fact that mujs might not be present
+MUJS_SRC=
+test -d thirdparty/mujs && MUJS_SRC=thirdparty/mujs
+
+# Convert it all back
+sed -i 's!/\*static \*/!static !' $(find source platform/android/viewer platform/java $MUJS_SRC -name '*.c')
-- 
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