diff options
| -rw-r--r-- | test/syscalls/linux/BUILD | 5 | ||||
| -rw-r--r-- | test/syscalls/linux/fpsig_fork.cc | 29 |
2 files changed, 27 insertions, 7 deletions
diff --git a/test/syscalls/linux/BUILD b/test/syscalls/linux/BUILD index 837e56042..f7c2eab85 100644 --- a/test/syscalls/linux/BUILD +++ b/test/syscalls/linux/BUILD @@ -835,10 +835,7 @@ cc_binary( cc_binary( name = "fpsig_fork_test", testonly = 1, - srcs = select_arch( - amd64 = ["fpsig_fork.cc"], - arm64 = [], - ), + srcs = ["fpsig_fork.cc"], linkstatic = 1, deps = [ gtest, diff --git a/test/syscalls/linux/fpsig_fork.cc b/test/syscalls/linux/fpsig_fork.cc index a346f1f00..62f2f7d23 100644 --- a/test/syscalls/linux/fpsig_fork.cc +++ b/test/syscalls/linux/fpsig_fork.cc @@ -27,9 +27,20 @@ namespace testing { namespace { +#ifdef __x86_64__ #define GET_XMM(__var, __xmm) \ asm volatile("movq %%" #__xmm ", %0" : "=r"(__var)) #define SET_XMM(__var, __xmm) asm volatile("movq %0, %%" #__xmm : : "r"(__var)) +#define GET_FP0(__var) GET_XMM(__var, xmm0) +#define SET_FP0(__var) SET_XMM(__var, xmm0) +#elif __aarch64__ +#define __stringify_1(x...) #x +#define __stringify(x...) __stringify_1(x) +#define GET_FPREG( var, regname ) asm volatile("str "__stringify(regname)", %0" : "=m" (var) ) +#define SET_FPREG( var, regname ) asm volatile("ldr "__stringify(regname)", %0" : "=m" (var) ) +#define GET_FP0( var ) GET_FPREG( var, d0 ) +#define SET_FP0( var ) GET_FPREG( var, d0 ) +#endif int parent, child; @@ -40,7 +51,10 @@ void sigusr1(int s, siginfo_t* siginfo, void* _uc) { TEST_CHECK_MSG(child >= 0, "fork failed"); uint64_t val = SIGUSR1; - SET_XMM(val, xmm0); + SET_FP0(val); + uint64_t got; + GET_FP0(got); + TEST_CHECK_MSG(val == got, "Basic FP check failed in sigusr1()"); } TEST(FPSigTest, Fork) { @@ -67,8 +81,9 @@ TEST(FPSigTest, Fork) { // be the one clobbered. uint64_t expected = 0xdeadbeeffacefeed; - SET_XMM(expected, xmm0); + SET_FP0(expected); +#ifdef __x86_64__ asm volatile( "movl %[killnr], %%eax;" "movl %[parent], %%edi;" @@ -81,9 +96,17 @@ TEST(FPSigTest, Fork) { : "rax", "rdi", "rsi", "rdx", // Clobbered by syscall. "rcx", "r11"); +#elif __aarch64__ + asm volatile( + "mov x8, %0\n" + "mov x0, %1\n" + "mov x1, %2\n" + "mov x2, %3\n" + "svc #0\n"::"r"(__NR_tgkill), "r"(parent), "r"(parent_tid), "r"(SIGUSR1)); +#endif uint64_t got; - GET_XMM(got, xmm0); + GET_FP0(got); if (getpid() == parent) { // Parent. int status; |