forked from 0ad/0ad
49 lines
1.8 KiB
Plaintext
49 lines
1.8 KiB
Plaintext
Dehydra is a tool that allows custom static analysis of C++ code, with analysis code written in JavaScript, running as a GCC plugin.
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This directory has some analysis scripts. The setup is a bit ad hoc and not well tested or integrated into the build system or anything, so use at your own risk.
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General usage instructions:
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* Run Linux. (It might work on OS X too.)
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* Install Dehydra, as per https://developer.mozilla.org/En/Dehydra/Installing_Dehydra
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* Build 0 A.D. from build/workspaces/gcc:
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export CXX="$HOME/gcc-dehydra/installed/bin/g++ -fplugin=$HOME/gcc-dehydra/dehydra/gcc_treehydra.so -fplugin-arg-gcc_treehydra-script=../../dehydra/printf-type-check.js -DCONFIG_DEHYDRA=1"
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make
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# (or "make test -j3 -k" to build the engine and tests and to do 3 files in parallel and continue past errors, etc)
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* Wait (it's quite slow) and look for the new compiler warnings/errors.
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The "tests" directory doesn't actually contain any proper tests, just some example files and expected outputs for rough sanity checking.
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Some Dehydra fixes might be needed, depending on what version you use, like:
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diff -r 9871caaedb8f dehydra.c
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--- a/dehydra.c Sat Mar 12 13:55:41 2011 -0500
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+++ b/dehydra.c Wed May 18 19:27:23 2011 +0100
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@@ -123,7 +123,7 @@
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};
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this->fndeclMap = pointer_map_create ();
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- this->rt = JS_NewRuntime (0x32L * 1024L * 1024L);
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+ this->rt = JS_NewRuntime (0x128L * 1024L * 1024L);
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if (this->rt == NULL)
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exit(1);
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diff -r 9871caaedb8f libs/treehydra.js
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--- a/libs/treehydra.js Sat Mar 12 13:55:41 2011 -0500
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+++ b/libs/treehydra.js Wed May 18 19:27:23 2011 +0100
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@@ -209,6 +209,9 @@
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walk_tree (i.stmt (), func, guard, stack);
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}
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break;
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+ case EXPR_STMT:
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+ walk_tree (TREE_OPERAND(t, 0), func, guard, stack);
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+ break;
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case TEMPLATE_PARM_INDEX:
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case PTRMEM_CST:
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case USING_DECL:
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