Show coverage for libm too.

Test: manual
Change-Id: Idf50d918ad53ff2d5a3097dfcbd5a392d6f0ed31

build/coverage.sh

@@ -54,9 +54,12 @@ ${LLVM_COV} show \
   --instr-profile=${HOST_PROFDATA_DIR}/bionic.profdata \
   --format=html \
   $OUT/symbols/apex/com.android.runtime/lib64/bionic/libc.so \
+  --object=$OUT/symbols/apex/com.android.runtime/lib64/bionic/libm.so \
   --object=$OUT/symbols/data/nativetest64/bionic-unit-tests/bionic-unit-tests \
   --object=$OUT/symbols/apex/com.android.runtime/lib/bionic/libc.so \
+  --object=$OUT/symbols/apex/com.android.runtime/lib/bionic/libm.so \
   --object=$OUT/symbols/data/nativetest/bionic-unit-tests/bionic-unit-tests \
   /proc/self/cwd/bionic/libc \
+  /proc/self/cwd/bionic/libm \
   --output-dir=${HOST_PROFDATA_DIR}/html \
   --show-region-summary=false

libm/Android.bp

@@ -1,5 +1,3 @@
-bionic_coverage = false
-
 //
 // libm.so and libm.a for target.
 //
@@ -488,7 +486,6 @@ cc_library {
     include_dirs: ["bionic/libc"],
     system_shared_libs: ["libc"],
 
-    native_coverage: bionic_coverage,
     sanitize: {
         address: false,
         fuzzer: false,