diff options
Diffstat (limited to 'src/common/android/breakpad_getcontext_unittest.cc')
| -rw-r--r-- | src/common/android/breakpad_getcontext_unittest.cc | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/common/android/breakpad_getcontext_unittest.cc b/src/common/android/breakpad_getcontext_unittest.cc index 14d7927a..2c550bf2 100644 --- a/src/common/android/breakpad_getcontext_unittest.cc +++ b/src/common/android/breakpad_getcontext_unittest.cc @@ -27,11 +27,26 @@ // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +#if defined(__x86_64__) +#include <asm/sigcontext.h> +#endif + #include <sys/ucontext.h> #include "breakpad_googletest_includes.h" #include "common/android/ucontext_constants.h" +template <int left, int right> +struct CompileAssertEquals { + // a compilation error here indicates left and right are not equal. + char left_too_large[right - left]; + // a compilation error here indicates left and right are not equal. + char right_too_large[left - right]; +}; + +#define COMPILE_ASSERT_EQ(left, right, tag) \ + CompileAssertEquals<left, right> tag; + TEST(AndroidUContext, GRegsOffset) { #if defined(__arm__) // There is no gregs[] array on ARM, so compare to the offset of @@ -95,6 +110,70 @@ TEST(AndroidUContext, GRegsOffset) { ASSERT_EQ(static_cast<size_t>(MCONTEXT_FPC_CSR), offsetof(ucontext_t,uc_mcontext.fpc_csr)); +#elif defined(__x86_64__) + + COMPILE_ASSERT_EQ(static_cast<size_t>(MCONTEXT_GREGS_OFFSET), + offsetof(ucontext_t,uc_mcontext.gregs), + mcontext_gregs_offset); +#define CHECK_REG(x) \ + COMPILE_ASSERT_EQ(static_cast<size_t>(MCONTEXT_GREGS_##x), \ + offsetof(ucontext_t,uc_mcontext.gregs[REG_##x]), reg_##x) + CHECK_REG(R8); + CHECK_REG(R9); + CHECK_REG(R10); + CHECK_REG(R11); + CHECK_REG(R12); + CHECK_REG(R13); + CHECK_REG(R14); + CHECK_REG(R15); + CHECK_REG(RDI); + CHECK_REG(RSI); + CHECK_REG(RBP); + CHECK_REG(RBX); + CHECK_REG(RDX); + CHECK_REG(RAX); + CHECK_REG(RCX); + CHECK_REG(RSP); + CHECK_REG(RIP); + + // sigcontext is an analog to mcontext_t. The layout should be the same. + COMPILE_ASSERT_EQ(offsetof(mcontext_t,fpregs), + offsetof(sigcontext,fpstate), sigcontext_fpstate); + // Check that _fpstate from asm/sigcontext.h is essentially the same + // as _libc_fpstate. + COMPILE_ASSERT_EQ(sizeof(_libc_fpstate), sizeof(_fpstate), + sigcontext_fpstate_size); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,cwd),offsetof(_fpstate,cwd), + sigcontext_fpstate_cwd); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,swd),offsetof(_fpstate,swd), + sigcontext_fpstate_swd); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,ftw),offsetof(_fpstate,twd), + sigcontext_fpstate_twd); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,fop),offsetof(_fpstate,fop), + sigcontext_fpstate_fop); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,rip),offsetof(_fpstate,rip), + sigcontext_fpstate_rip); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,rdp),offsetof(_fpstate,rdp), + sigcontext_fpstate_rdp); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,mxcsr),offsetof(_fpstate,mxcsr), + sigcontext_fpstate_mxcsr); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,mxcr_mask), + offsetof(_fpstate,mxcsr_mask), + sigcontext_fpstate_mxcsr_mask); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,_st), offsetof(_fpstate,st_space), + sigcontext_fpstate_stspace); + COMPILE_ASSERT_EQ(offsetof(_libc_fpstate,_xmm), offsetof(_fpstate,xmm_space), + sigcontext_fpstate_xmm_space); + + COMPILE_ASSERT_EQ(MCONTEXT_FPREGS_PTR, + offsetof(ucontext_t,uc_mcontext.fpregs), + mcontext_fpregs_ptr); + COMPILE_ASSERT_EQ(MCONTEXT_FPREGS_MEM, offsetof(ucontext_t,__fpregs_mem), + mcontext_fpregs_mem); + COMPILE_ASSERT_EQ(FPREGS_OFFSET_MXCSR, offsetof(_libc_fpstate,mxcsr), + fpregs_offset_mxcsr); + COMPILE_ASSERT_EQ(UCONTEXT_SIGMASK_OFFSET, offsetof(ucontext_t, uc_sigmask), + ucontext_sigmask); #else ASSERT_EQ(static_cast<size_t>(MCONTEXT_GREGS_OFFSET), offsetof(ucontext_t,uc_mcontext.gregs)); |