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1 // RUN: %clang_cc1 -fsyntax-only -verify %s
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2
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3 #include <stdarg.h>
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4 #include <stddef.h>
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5 #define __need_wint_t
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6 #include <stddef.h> // For wint_t and wchar_t
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7
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8 int printf(const char *restrict, ...);
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9
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10 @interface NSString
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11 @end
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12
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13 void test_os_log_format(const char *pc, int i, void *p, void *buf) {
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14 __builtin_os_log_format(buf, "");
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15 __builtin_os_log_format(buf, "%d"); // expected-warning {{more '%' conversions than data arguments}}
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16 __builtin_os_log_format(buf, "%d", i);
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17 __builtin_os_log_format(buf, "%P", p); // expected-warning {{using '%P' format specifier without precision}}
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18 __builtin_os_log_format(buf, "%.10P", p);
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19 __builtin_os_log_format(buf, "%.*P", p); // expected-warning {{field precision should have type 'int', but argument has type 'void *'}}
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20 __builtin_os_log_format(buf, "%.*P", i, p);
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21 __builtin_os_log_format(buf, "%.*P", i, i); // expected-warning {{format specifies type 'void *' but the argument has type 'int'}}
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22 __builtin_os_log_format(buf, "%n"); // expected-error {{os_log() '%n' format specifier is not allowed}}
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23 __builtin_os_log_format(buf, pc); // expected-error {{os_log() format argument is not a string constant}}
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24
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25 printf("%{private}s", pc); // expected-warning {{using 'private' format specifier annotation outside of os_log()/os_trace()}}
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26 __builtin_os_log_format(buf, "%{private}s", pc);
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27
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28 // <rdar://problem/23835805>
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29 __builtin_os_log_format_buffer_size("no-args");
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30 __builtin_os_log_format(buf, "%s", "hi");
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31
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32 // <rdar://problem/24828090>
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33 wchar_t wc = 'a';
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34 __builtin_os_log_format(buf, "%C", wc);
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35 printf("%C", wc);
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36 wchar_t wcs[] = {'a', 0};
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37 __builtin_os_log_format(buf, "%S", wcs);
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38 printf("%S", wcs);
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39
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40 struct { char data[0x100]; } toobig;
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41 __builtin_os_log_format(buf, "%s", toobig); // expected-error {{os_log() argument 2 is too big (256 bytes, max 255)}}
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42
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43 __builtin_os_log_format(buf, "%{mask.xyz}s", "abc");
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44 __builtin_os_log_format(buf, "%{mask.}s", "abc"); // expected-error {{mask type size must be between 1-byte and 8-bytes}}
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45 __builtin_os_log_format(buf, "%{mask.abcdefghi}s", "abc"); // expected-error {{mask type size must be between 1-byte and 8-bytes}}
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46 }
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47
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48 // Test os_log_format primitive with ObjC string literal format argument.
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49 void test_objc(const char *pc, int i, void *p, void *buf, NSString *nss) {
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50 __builtin_os_log_format(buf, @"");
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51 __builtin_os_log_format(buf, @"%d"); // expected-warning {{more '%' conversions than data arguments}}
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52 __builtin_os_log_format(buf, @"%d", i);
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53 __builtin_os_log_format(buf, @"%P", p); // expected-warning {{using '%P' format specifier without precision}}
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54 __builtin_os_log_format(buf, @"%.10P", p);
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55 __builtin_os_log_format(buf, @"%.*P", p); // expected-warning {{field precision should have type 'int', but argument has type 'void *'}}
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56 __builtin_os_log_format(buf, @"%.*P", i, p);
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57 __builtin_os_log_format(buf, @"%.*P", i, i); // expected-warning {{format specifies type 'void *' but the argument has type 'int'}}
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58
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59 __builtin_os_log_format(buf, @"%{private}s", pc);
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60 __builtin_os_log_format(buf, @"%@", nss);
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61 }
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62
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63 // Test the os_log format attribute.
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64 void MyOSLog(const char *format, ...) __attribute__((format(os_log, 1, 2)));
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65 void test_attribute(void *p) {
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66 MyOSLog("%s\n", "Hello");
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67 MyOSLog("%d"); // expected-warning {{more '%' conversions than data arguments}}
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68 MyOSLog("%P", p); // expected-warning {{using '%P' format specifier without precision}}
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69 }
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