58 lines
2.4 KiB
C
58 lines
2.4 KiB
C
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// RUN: %clang_cc1 -triple thumbv8m.base-none-eabi -mcmse -verify %s
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typedef void (*callback_ns_1t)() __attribute__((cmse_nonsecure_call));
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typedef void (*callback_1t)();
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typedef void (*callback_ns_2t)() __attribute__((cmse_nonsecure_call));
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typedef void (*callback_2t)();
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void foo(callback_ns_1t nsfptr, // expected-error{{functions may not be declared with 'cmse_nonsecure_call' attribute}}
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callback_1t fptr) __attribute__((cmse_nonsecure_call))
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{
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callback_1t fp1 = nsfptr; // expected-warning{{incompatible function pointer types initializing 'callback_1t'}}
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callback_ns_1t fp2 = fptr; // expected-warning{{incompatible function pointer types initializing 'callback_ns_1t'}}
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callback_2t fp3 = fptr;
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callback_ns_2t fp4 = nsfptr;
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}
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static void bar() __attribute__((cmse_nonsecure_entry)) // expected-warning{{'cmse_nonsecure_entry' cannot be applied to functions with internal linkage}}
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{
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}
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typedef void nonsecure_fn_t(int) __attribute__((cmse_nonsecure_call));
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extern nonsecure_fn_t baz; // expected-error{{functions may not be declared with 'cmse_nonsecure_call' attribute}}
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int v0 __attribute__((cmse_nonsecure_call)); // expected-warning {{'cmse_nonsecure_call' only applies to function types; type here is 'int'}}
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int v1 __attribute__((cmse_nonsecure_entry)); // expected-warning {{'cmse_nonsecure_entry' attribute only applies to functions}}
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void fn0() __attribute__((cmse_nonsecure_entry));
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void fn1() __attribute__((cmse_nonsecure_entry(1))); // expected-error {{'cmse_nonsecure_entry' attribute takes no arguments}}
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typedef void (*fn2_t)() __attribute__((cmse_nonsecure_call("abc"))); // expected-error {{'cmse_nonsecure_call' attribute takes no argument}}
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union U { unsigned n; char b[4]; } u;
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union U xyzzy() __attribute__((cmse_nonsecure_entry)) {
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return u; // expected-warning {{passing union across security boundary via return value may leak information}}
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}
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void (*fn2)(int, union U) __attribute__((cmse_nonsecure_call));
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void (*fn3)() __attribute__ ((cmse_nonsecure_call));
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struct S {
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int t;
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union {
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char b[4];
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unsigned w;
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};
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} s;
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void qux() {
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fn2(1,
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u); // expected-warning {{passing union across security boundary via parameter 1 may leak information}}
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fn3(
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u, // expected-warning {{passing union across security boundary via parameter 0 may leak information}}
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1,
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s); // expected-warning {{passing union across security boundary via parameter 2 may leak information}}
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}
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