File: asan_prelink_test.cc

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (29 lines) | stat: -rw-r--r-- 961 bytes parent folder | download | duplicates (8)
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
// Test if asan works with prelink.
// It does not actually use prelink, but relies on ld's flag -Ttext-segment
// or gold's flag -Ttext (we try the first flag first, if that fails we
// try the second flag).
//
// RUN: %clangxx_asan -c %s -o %t.o
// RUN: %clangxx_asan -DBUILD_SO=1 -fPIC -shared %s -o %t.so -Wl,-Ttext-segment=0x3600000000 ||\
// RUN: %clangxx_asan -DBUILD_SO=1 -fPIC -shared %s -o %t.so -Wl,-Ttext=0x3600000000
// RUN: %clangxx_asan %t.o %t.so -Wl,-R. -o %t
// RUN: %env_asan_opts=verbosity=1 %run %t 2>&1 | FileCheck %s

// GNU driver doesn't handle .so files properly.
// REQUIRES: x86_64-target-arch, shadow-scale-3, Clang
#if BUILD_SO
int G;
int *getG() {
  return &G;
}
#else
#include <stdio.h>
extern int *getG();
int main(int argc, char **argv) {
  long p = (long)getG();
  printf("SO mapped at %lx\n", p & ~0xffffffffUL);
  *getG() = 0;
}
#endif
// CHECK: 0x003000000000, 0x004fffffffff{{.*}} MidMem
// CHECK: SO mapped at 3600000000