Improved coverage reporting

.gitignore

@@ -103,4 +103,10 @@ external
 sim/results
 tests/wally-riscv-arch-test/riscv-test-suite/rv*i_m/I/src/*.S
 tests/wally-riscv-arch-test/riscv-test-suite/rv*i_m/I/Makefrag
-
+sim/branch_BP_GSHARE10.log
+sim/branch_BP_GSHARE16.log
+sim/cov/
+sim/covhtmlreport/
+sim/imperas.log
+sim/results-error/
+sim/test1.rep

sim/regression-wally

@@ -126,6 +126,7 @@ for test in ahbTests:
         grepstr="All tests ran without failures")
   configs.append(tc)
 
+#tests64gc = ["arch64i", "arch64c",  "arch64m"] 
 tests64gc = ["arch64f", "arch64d", "arch64i", "arch64priv", "arch64c",  "arch64m", "arch64zi", "wally64a", "wally64periph", "wally64priv"] 
 if (coverage):  # delete all but 64gc tests when running coverage
     configs = []
@@ -217,8 +218,9 @@ def main():
     if coverage:
        print('Generating coverage report')
        os.system('vcover merge -out cov/cov.ucdb cov/rv64gc_arch64i.ucdb cov/rv64gc*.ucdb -logfile cov/log')
-       os.system('vcover report -details cov/cov.ucdb > cov/rv64gc_coverage.rpt')
-       os.system('vcover report -html cov/cov.ucdb')
+       os.system('vcover report -details cov/cov.ucdb > cov/rv64gc_coverage_details.rpt')
+       os.system('vcover report -below 100 cov/cov.ucdb > cov/rv64gc_coverage.rpt')
+       os.system('vcover report -details -threshH 100 -html cov/cov.ucdb')
     # Count the number of failures
     if num_fail:
         print(f"{bcolors.FAIL}Regression failed with %s failed configurations{bcolors.ENDC}" % num_fail)

sim/wally-batch.do

@@ -138,8 +138,8 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
 } 
 
 if {$coverage} {
-    do coverage-exclusions.do
-    coverage save -instance /testbench/dut cov/${1}_${2}.ucdb
+    do coverage-exclusions-rv64gc.do  # beware: this assumes testing the rv64gc configuration
+    coverage save -instance /testbench/dut/core cov/${1}_${2}.ucdb
 }
 
 # These aren't doing anything helpful