diff mbox series

[v2,29/43] tests/tcg/aarch64: userspace system register test

Message ID 20180419135901.30035-30-alex.bennee@linaro.org
State Superseded
Headers show
Series fix building of tests/tcg | expand

Commit Message

Alex Bennée April 19, 2018, 1:58 p.m. UTC 
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

---
 tests/tcg/aarch64/Makefile.target |  2 +-
 tests/tcg/aarch64/sysregs.c       | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 tests/tcg/aarch64/sysregs.c

-- 
2.17.0
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Patch

diff --git a/tests/tcg/aarch64/Makefile.target b/tests/tcg/aarch64/Makefile.target
index 26be1c58ef..0727bd3bd2 100644
--- a/tests/tcg/aarch64/Makefile.target
+++ b/tests/tcg/aarch64/Makefile.target
@@ -7,7 +7,7 @@  VPATH 		+= $(AARCH64_SRC)
 
 # we don't build any of the ARM tests
 AARCH64_TESTS=$(filter-out $(ARM_TESTS), $(TESTS))
-AARCH64_TESTS+=fcvt
+AARCH64_TESTS+=fcvt sysregs
 TESTS:=$(AARCH64_TESTS)
 
 fcvt: LDFLAGS+=-lm
diff --git a/tests/tcg/aarch64/sysregs.c b/tests/tcg/aarch64/sysregs.c
new file mode 100644
index 0000000000..0cd0c42d8c
--- /dev/null
+++ b/tests/tcg/aarch64/sysregs.c
@@ -0,0 +1,14 @@ 
+#include <stdio.h>
+
+#define get_cpu_reg(id) ({                                      \
+                unsigned long __val;                            \
+                asm("mrs %0, "#id : "=r" (__val));              \
+                printf("%-20s: 0x%016lx\n", #id, __val);        \
+        })
+
+int main(void)
+{
+    get_cpu_reg(cntvct_el0);
+    get_cpu_reg(cntfrq_el0);
+    return 0;
+}