File: set-file-object.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (34 lines) | stat: -rw-r--r-- 883 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
// REQUIRES: darwin

// RUN: %clang_pgogen -o %t.exe %s
// RUN: env LLVM_PROFILE_FILE="%c%t.profraw" %run %t.exe %t.bad 2>&1 | FileCheck %s

// CHECK: __llvm_profile_set_file_object(fd={{[0-9]+}}) not supported
// CHECK: Profile data not written to file: already written.

#include <stdio.h>

extern int __llvm_profile_is_continuous_mode_enabled(void);
extern void __llvm_profile_set_file_object(FILE *, int);
extern int __llvm_profile_write_file(void);

int main(int argc, char **argv) {
  if (!__llvm_profile_is_continuous_mode_enabled())
    return 1;

  FILE *f = fopen(argv[1], "a+b");
  if (!f)
    return 1;

  __llvm_profile_set_file_object(f, 0); // Try to set the file to "%t.bad".

  if (__llvm_profile_write_file() != 0)
    return 1;

  f = fopen(argv[1], "r");
  if (!f)
    return 1;

  fseek(f, 0, SEEK_END);
  return ftell(f); // Check that the "%t.bad" is empty.
}