49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
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// RUN: %clang_cc1 -x c -triple bpf-pc-linux-gnu -dwarf-version=4 -fsyntax-only -verify %s
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#define __reloc__ __attribute__((preserve_access_index))
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#define __err_reloc__ __attribute__((preserve_access_index(0)))
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struct t1 {
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int a;
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int b[4];
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int c:1;
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} __reloc__;
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union t2 {
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int a;
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int b[4];
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int c:1;
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} __reloc__;
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struct t3 {
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int a;
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} __err_reloc__; // expected-error {{'preserve_access_index' attribute takes no arguments}}
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struct t4 {
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union {
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int a;
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char b[5];
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};
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struct {
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int c:1;
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} __reloc__;
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int d;
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} __reloc__;
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struct __reloc__ p;
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struct __reloc__ q;
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struct p {
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int a;
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};
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int a __reloc__; // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
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struct s *p __reloc__; // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
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void invalid1(const int __reloc__ *arg) {} // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
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void invalid2() { const int __reloc__ *arg; } // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}}
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int valid3(struct t4 *arg) { return arg->a + arg->b[3] + arg->c + arg->d; }
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int valid4(void *arg) {
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struct local_t { int a; int b; } __reloc__;
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return ((struct local_t *)arg)->b;
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}
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