1// RUN: %clang_cc1 -fsyntax-only -verify %s 2 3#include <stdarg.h> 4#include <stddef.h> 5#define __need_wint_t 6#include <stddef.h> // For wint_t and wchar_t 7 8int printf(const char *restrict, ...); 9 10@interface NSString 11@end 12 13void test_os_log_format(const char *pc, int i, void *p, void *buf) { 14 __builtin_os_log_format(buf, ""); 15 __builtin_os_log_format(buf, "%d"); // expected-warning {{more '%' conversions than data arguments}} 16 __builtin_os_log_format(buf, "%d", i); 17 __builtin_os_log_format(buf, "%P", p); // expected-warning {{using '%P' format specifier without precision}} 18 __builtin_os_log_format(buf, "%.10P", p); 19 __builtin_os_log_format(buf, "%.*P", p); // expected-warning {{field precision should have type 'int', but argument has type 'void *'}} 20 __builtin_os_log_format(buf, "%.*P", i, p); 21 __builtin_os_log_format(buf, "%.*P", i, i); // expected-warning {{format specifies type 'void *' but the argument has type 'int'}} 22 __builtin_os_log_format(buf, "%n"); // expected-error {{os_log() '%n' format specifier is not allowed}} 23 __builtin_os_log_format(buf, pc); // expected-error {{os_log() format argument is not a string constant}} 24 25 printf("%{private}s", pc); // expected-warning {{using 'private' format specifier annotation outside of os_log()/os_trace()}} 26 __builtin_os_log_format(buf, "%{private}s", pc); 27 28 __builtin_os_log_format_buffer_size("no-args"); 29 __builtin_os_log_format(buf, "%s", "hi"); 30 31 wchar_t wc = 'a'; 32 __builtin_os_log_format(buf, "%C", wc); 33 printf("%C", wc); 34 wchar_t wcs[] = {'a', 0}; 35 __builtin_os_log_format(buf, "%S", wcs); 36 printf("%S", wcs); 37 38 struct { char data[0x100]; } toobig; 39 __builtin_os_log_format(buf, "%s", toobig); // expected-error {{os_log() argument 2 is too big (256 bytes, max 255)}} 40 41 __builtin_os_log_format(buf, "%{mask.xyz}s", "abc"); 42 __builtin_os_log_format(buf, "%{mask.}s", "abc"); // expected-error {{mask type size must be between 1-byte and 8-bytes}} 43 __builtin_os_log_format(buf, "%{mask.abcdefghi}s", "abc"); // expected-error {{mask type size must be between 1-byte and 8-bytes}} 44} 45 46// Test os_log_format primitive with ObjC string literal format argument. 47void test_objc(const char *pc, int i, void *p, void *buf, NSString *nss, id obj) { 48 __builtin_os_log_format(buf, @""); 49 __builtin_os_log_format(buf, @"%d"); // expected-warning {{more '%' conversions than data arguments}} 50 __builtin_os_log_format(buf, @"%d", i); 51 52 __builtin_os_log_format(buf, @"%P", p); // expected-warning {{using '%P' format specifier without precision}} 53 __builtin_os_log_format(buf, @"%.10P", p); 54 __builtin_os_log_format(buf, @"%.*P", p); // expected-warning {{field precision should have type 'int', but argument has type 'void *'}} 55 __builtin_os_log_format(buf, @"%.*P", i, p); 56 __builtin_os_log_format(buf, @"%.*P", i, i); // expected-warning {{format specifies type 'void *' but the argument has type 'int'}} 57 __builtin_os_log_format(buf, @"%.8P", nss); // expected-warning {{using '%P' format specifier with an Objective-C pointer results in dumping runtime object structure, not object value}} 58 __builtin_os_log_format(buf, @"%.*P", i, obj); // expected-warning {{using '%P' format specifier with an Objective-C pointer results in dumping runtime object structure, not object value}} 59 60 __builtin_os_log_format(buf, @"%{private}s", pc); 61 __builtin_os_log_format(buf, @"%@", nss); 62} 63 64// Test the os_log format attribute. 65void MyOSLog(const char *format, ...) __attribute__((format(os_log, 1, 2))); 66void test_attribute(void *p) { 67 MyOSLog("%s\n", "Hello"); 68 MyOSLog("%d"); // expected-warning {{more '%' conversions than data arguments}} 69 MyOSLog("%P", p); // expected-warning {{using '%P' format specifier without precision}} 70} 71