1 // RUN: %clang_cc1 -x c -triple bpf-pc-linux-gnu -dwarf-version=4 -fsyntax-only -verify %s 2 3 #define __reloc__ __attribute__((preserve_access_index)) 4 #define __err_reloc__ __attribute__((preserve_access_index(0))) 5 6 struct t1 { 7 int a; 8 int b[4]; 9 int c:1; 10 } __reloc__; 11 12 union t2 { 13 int a; 14 int b[4]; 15 int c:1; 16 } __reloc__; 17 18 struct t3 { 19 int a; 20 } __err_reloc__; // expected-error {{'preserve_access_index' attribute takes no arguments}} 21 22 struct t4 { 23 union { 24 int a; 25 char b[5]; 26 }; 27 struct { 28 int c:1; 29 } __reloc__; 30 int d; 31 } __reloc__; 32 33 struct __reloc__ p; 34 struct __reloc__ q; 35 struct p { 36 int a; 37 }; 38 39 int a __reloc__; // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}} 40 struct s *p __reloc__; // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}} 41 invalid1(const int __reloc__ * arg)42void invalid1(const int __reloc__ *arg) {} // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}} invalid2()43void invalid2() { const int __reloc__ *arg; } // expected-error {{'preserve_access_index' attribute only applies to structs, unions, and classes}} valid3(struct t4 * arg)44int valid3(struct t4 *arg) { return arg->a + arg->b[3] + arg->c + arg->d; } valid4(void * arg)45int valid4(void *arg) { 46 struct local_t { int a; int b; } __reloc__; 47 return ((struct local_t *)arg)->b; 48 } 49