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| author | Andy Lutomirski <luto@amacapital.net> | 2014-10-20 15:31:31 -0700 |
|---|---|---|
| committer | Andy Lutomirski <luto@amacapital.net> | 2014-10-20 15:31:31 -0700 |
| commit | 26cc77ca7d1eb7697aec1b5f6706b7bf8aebc94f (patch) | |
| tree | 1d25b0981097184df73704992e3d2b0e24cd2635 | |
| parent | 77e505073b4c5362eef23bb871db58f5d8e3b1dc (diff) | |
| download | misc-tests-26cc77ca7d1eb7697aec1b5f6706b7bf8aebc94f.tar.gz | |
Add lsl to timing_test and fix build
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | timing_test.cc | 24 |
2 files changed, 25 insertions, 1 deletions
@@ -4,7 +4,7 @@ SIMPLE_C_TARGETS := dump-vsyscall context_switch_latency kernel_pf user_visible_ SIMPLE_CC_TARGETS := evil-clock-test -SPLIT_C_TARGETS := dump-vdso dump-vvar syscall_exit_regs sigreturn test_mremap_vdso dump_all_pmcs +SPLIT_C_TARGETS := dump-vdso dump-vvar syscall_exit_regs sigreturn dump_all_pmcs SPLIT_CC_TARGETS := timing_test test_vsyscall test_vdso_parser ALL_TARGETS := $(SIMPLE_C_TARGETS) $(SIMPLE_CC_TARGETS) $(SPLIT_C_TARGETS:%=%_64) $(SPLIT_CC_TARGETS:%=%_64) $(SPLIT_C_TARGETS:%=%_32) $(SPLIT_CC_TARGETS:%=%_32) syscall32_from_64 diff --git a/timing_test.cc b/timing_test.cc index cf5e904..3d3b5e5 100644 --- a/timing_test.cc +++ b/timing_test.cc @@ -85,6 +85,30 @@ int main(int argc, char **argv) unsigned int a, c, d; asm volatile ("rdtscp" : "=a" (a), "=c" (c), "=d" (d)); } + } else if (!strcmp(mode, "lsl15")) { + for (size_t i = 0; i < loops; ++i) { + uint16_t index = (15 << 3) + 3; + uint32_t limit; + asm volatile ("lsl %[index], %[limit]" + : [limit] "=r" (limit) + : [index] "r" (index) : "cc"); + } + } else if (!strcmp(mode, "lsl100")) { + for (size_t i = 0; i < loops; ++i) { + uint16_t index = (100 << 3) + 3; + uint32_t limit; + asm volatile ("lsl %[index], %[limit]" + : [limit] "=r" (limit) + : [index] "r" (index) : "cc"); + } + } else if (!strcmp(mode, "sgdt")) { + struct { + unsigned short limit; + unsigned long base; + } __attribute__((packed)) val; + + for (size_t i = 0; i < loops; ++i) + asm volatile ("sgdt %0" : "=m" (val)); } else if (!strcmp(mode, "gettimeofday")) { struct timeval tv; for (size_t i = 0; i < loops; ++i) |