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gcc-plugins: remove code for GCC versions older than 4.9

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Documentation/process/changes.rst says the minimal GCC version is 4.9.
Hence, BUILDING_GCC_VERSION is greater than or equal to 4009.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201202134929.99883-1-masahiroy@kernel.org
This commit is contained in:
Masahiro Yamada 2020-12-02 22:49:29 +09:00 • committed by Kees Cook
parent b650545978
commit af2d22254e
10 changed files with 1 additions and 505 deletions
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4
scripts/gcc-plugins/structleak_plugin.c
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@ -68,9 +68,7 @@ static void register_attributes(void *event_data, void *data)
{
user_attr.name = "user";
user_attr.handler = handle_user_attribute;
#if BUILDING_GCC_VERSION >= 4007
user_attr.affects_type_identity = true;
#endif
register_attribute(&user_attr);
}
@ -137,11 +135,9 @@ static void initialize(tree var)
if (!gimple_assign_single_p(stmt))
continue;
rhs1 = gimple_assign_rhs1(stmt);
#if BUILDING_GCC_VERSION >= 4007
/* ... of a non-clobbering expression... */
if (TREE_CLOBBER_P(rhs1))
continue;
#endif
/* ... to our variable... */
if (gimple_get_lhs(stmt) != var)
continue;