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Diffstat (limited to 'test/asan/TestCases/Linux/ptrace.cc')
-rw-r--r-- | test/asan/TestCases/Linux/ptrace.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/test/asan/TestCases/Linux/ptrace.cc b/test/asan/TestCases/Linux/ptrace.cc new file mode 100644 index 000000000000..7e5acb64c7a1 --- /dev/null +++ b/test/asan/TestCases/Linux/ptrace.cc @@ -0,0 +1,56 @@ +// FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=316 +// XFAIL: android +// +// RUN: %clangxx_asan -O0 %s -o %t && %run %t +// RUN: %clangxx_asan -DPOSITIVE -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s +// REQUIRES: x86_64-supported-target,i386-supported-target + +#include <assert.h> +#include <stdio.h> +#include <sys/ptrace.h> +#include <sys/types.h> +#include <sys/user.h> +#include <sys/wait.h> +#include <unistd.h> + +int main(void) { + pid_t pid; + pid = fork(); + if (pid == 0) { // child + ptrace(PTRACE_TRACEME, 0, NULL, NULL); + execl("/bin/true", "true", NULL); + } else { + wait(NULL); + user_regs_struct regs; + int res; + user_regs_struct * volatile pregs = ®s; +#ifdef POSITIVE + ++pregs; +#endif + res = ptrace(PTRACE_GETREGS, pid, NULL, pregs); + // CHECK: AddressSanitizer: stack-buffer-overflow + // CHECK: {{.*ptrace.cc:}}[[@LINE-2]] + assert(!res); +#if __WORDSIZE == 64 + printf("%zx\n", regs.rip); +#else + printf("%lx\n", regs.eip); +#endif + + user_fpregs_struct fpregs; + res = ptrace(PTRACE_GETFPREGS, pid, NULL, &fpregs); + assert(!res); + printf("%lx\n", (unsigned long)fpregs.cwd); + +#if __WORDSIZE == 32 + user_fpxregs_struct fpxregs; + res = ptrace(PTRACE_GETFPXREGS, pid, NULL, &fpxregs); + assert(!res); + printf("%lx\n", (unsigned long)fpxregs.mxcsr); +#endif + + ptrace(PTRACE_CONT, pid, NULL, NULL); + wait(NULL); + } + return 0; +} |