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authorEmilio Cota <cota@braap.org>2023-01-24 18:01:25 +0000
committerAlex Bennée <alex.bennee@linaro.org>2023-02-02 11:48:20 +0000
commit17083f6fa6e02326f1c1e8b67b8b282480d013d2 (patch)
tree436f0872848fe20685b9e04d75f4d4aa1b4c3e5d /include
parent0f92d94ae37952ed3e6771bc429de4b739eb6ca3 (diff)
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tcg: exclude non-memory effecting helpers from instrumentation
There are actually a whole bunch of helpers that don't affect memory that we shouldn't instrument. They are helpfully identified by the TCG_CALL_NO_SIDE_EFFECTS flag which marks out lookup_tb_ptr as well as a lot of the maths helpers. To avoid the string compare we introduce a new flag for plugin internals so we skip that too. Related: #1381 Signed-off-by: Emilio Cota <cota@braap.org> Message-Id: <20230108164731.61469-4-cota@braap.org> [AJB: updated to skip all no SE plugins, add flag for plugin helper] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230124180127.1881110-34-alex.bennee@linaro.org>
Diffstat (limited to 'include')
-rw-r--r--include/tcg/tcg.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h
index 6f49717..8dc291d 100644
--- a/include/tcg/tcg.h
+++ b/include/tcg/tcg.h
@@ -405,6 +405,8 @@ typedef TCGv_ptr TCGv_env;
#define TCG_CALL_NO_SIDE_EFFECTS 0x0004
/* Helper is G_NORETURN. */
#define TCG_CALL_NO_RETURN 0x0008
+/* Helper is part of Plugins. */
+#define TCG_CALL_PLUGIN 0x0010
/* convenience version of most used call flags */
#define TCG_CALL_NO_RWG TCG_CALL_NO_READ_GLOBALS