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Date: Thu, 22 Feb 2018 15:14:42 -0800
From: Laura Abbott <labbott@...hat.com>
To: Alexander Popov <alex.popov@...ux.com>,
Kees Cook <keescook@...omium.org>,
kernel-hardening@...ts.openwall.com
Cc: Laura Abbott <labbott@...hat.com>
Subject: [PATCH 2/2] gcc-plugins: stackleak: Update for gcc-8
- Use the new cgraph_create_edge API
- Account for the change in type for get_frame_size
Signed-off-by: Laura Abbott <labbott@...hat.com>
---
scripts/gcc-plugins/stackleak_plugin.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/scripts/gcc-plugins/stackleak_plugin.c b/scripts/gcc-plugins/stackleak_plugin.c
index 6fc991c98d8b..4ea2fdb987e6 100644
--- a/scripts/gcc-plugins/stackleak_plugin.c
+++ b/scripts/gcc-plugins/stackleak_plugin.c
@@ -69,8 +69,13 @@ static void stackleak_check_alloca(gimple_stmt_iterator *gsi)
node = cgraph_get_create_node(check_function_decl);
gcc_assert(node);
frequency = compute_call_stmt_bb_frequency(current_function_decl, bb);
+#if BUILDING_GCC_VERSION >= 8000
+ cgraph_create_edge(cgraph_get_node(current_function_decl), node,
+ check_alloca, bb->count, bb->loop_depth);
+#else
cgraph_create_edge(cgraph_get_node(current_function_decl), node,
check_alloca, bb->count, frequency, bb->loop_depth);
+#endif
}
static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi, bool after)
@@ -94,8 +99,13 @@ static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi, bool after)
node = cgraph_get_create_node(track_function_decl);
gcc_assert(node);
frequency = compute_call_stmt_bb_frequency(current_function_decl, bb);
+#if BUILDING_GCC_VERSION >= 8000
+ cgraph_create_edge(cgraph_get_node(current_function_decl), node,
+ track_stack, bb->count, bb->loop_depth);
+#else
cgraph_create_edge(cgraph_get_node(current_function_decl), node,
track_stack, bb->count, frequency, bb->loop_depth);
+#endif
}
static bool is_alloca(gimple stmt)
@@ -203,6 +213,18 @@ static unsigned int stackleak_tree_instrument_execute(void)
return 0;
}
+
+#if BUILDING_GCC_VERSION >= 8000
+bool check_frame_size()
+{
+ return maybe_ge(get_frame_size(), track_frame_size);
+}
+#else
+bool check_frame_size()
+{
+ return get_frame_size() >= track_frame_size;
+}
+#endif
/*
* Work with the RTL representation of the code.
* Remove the unneeded track_stack() calls from the functions which don't
@@ -215,7 +237,7 @@ static unsigned int stackleak_final_execute(void)
if (cfun->calls_alloca)
return 0;
- if (get_frame_size() >= track_frame_size)
+ if (check_frame_size())
return 0;
/*
--
2.14.3
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