Add HTML coverage viewer and LCOV output format

Author: novafacing

Cargo.toml

@@ -97,6 +97,13 @@ intervaltree = "0.2.7"
 lending-iterator = "0.1.7"
 rustc-demangle = "0.1.24"
 cpp_demangle = "0.4.3"
+walkdir = "2.5.0"
+md5 = "0.7.0"
+sha1 = "0.10.6"
+sha2 = "0.10.8"
+typed-path = "0.9.0"
+markup = "0.15.0"
+petgraph = "0.6.5"
 
 [dev-dependencies]
 simics-test = "0.1.0"

src/haps/mod.rs

@@ -62,11 +62,11 @@ impl Tsffs {
                 self.windows_os_info.collect(
                     start_processor_raw,
                     &self.debuginfo_download_directory,
-                    self.guess_pdb_function_size,
                     DebugInfoConfig {
                         system: self.symbolic_coverage_system,
                         user_debug_info: &self.debug_info,
                     },
+                    &self.source_file_cache,
                 )?;
             }
             self.get_and_write_testcase()?;
@@ -225,11 +225,11 @@ impl Tsffs {
                 self.windows_os_info.collect(
                     processor,
                     &self.debuginfo_download_directory,
-                    self.guess_pdb_function_size,
                     DebugInfoConfig {
                         system: self.symbolic_coverage_system,
                         user_debug_info: &self.debug_info,
                     },
+                    &self.source_file_cache,
                 )?;
             }
 
@@ -271,11 +271,11 @@ impl Tsffs {
                 self.windows_os_info.collect(
                     processor,
                     &self.debuginfo_download_directory,
-                    self.guess_pdb_function_size,
                     DebugInfoConfig {
                         system: self.symbolic_coverage_system,
                         user_debug_info: &self.debug_info,
                     },
+                    &self.source_file_cache,
                 )?;
             }
 

src/lib.rs

@@ -63,6 +63,7 @@ use simics::{
 // which is necessary because this module is compatible with base versions which cross the
 // deprecation boundary
 use simics::{restore_snapshot, save_snapshot};
+use source_cov::{Coverage, SourceCache};
 use state::StopReason;
 use std::{
     alloc::{alloc_zeroed, Layout},
@@ -91,6 +92,7 @@ pub(crate) mod interfaces;
 pub(crate) mod log;
 pub(crate) mod magic;
 pub(crate) mod os;
+pub(crate) mod source_cov;
 pub(crate) mod state;
 pub(crate) mod tracer;
 pub(crate) mod traits;
@@ -407,9 +409,6 @@ pub(crate) struct Tsffs {
     #[class(attribute(optional, default = lookup_file("%simics%")?.join("debuginfo-cache")))]
     /// Directory in which to download PDB and EXE files from symbol servers on Windows
     pub debuginfo_download_directory: PathBuf,
-    #[class(attribute(optional, default = true))]
-    /// Whether to guess the size of each function provided by a PDB file
-    pub guess_pdb_function_size: bool,
     #[class(attribute(optional))]
     /// Mapping of file name (name and extension e.g. fuzzer-app.exe or target.sys)
     /// to a tuple of (exe path, debuginfo path) where debuginfo is either a PDB or DWARF
@@ -477,6 +476,9 @@ pub(crate) struct Tsffs {
     edges_seen_since_last: HashMap<u64, u64>,
     /// The set of PCs comprising the current execution trace. This is cleared every execution.
     execution_trace: ExecutionTrace,
+    /// The current line coverage state comprising the total execution. This is not
+    /// cleared and is persistent across the full campaign until the fuzzer stops.
+    coverage: Coverage,
 
     /// The name of the fuzz snapshot, if saved
     snapshot_name: OnceCell<String>,
@@ -524,6 +526,7 @@ pub(crate) struct Tsffs {
 
     windows_os_info: WindowsOsInfo,
     cr3_cache: HashMap<i32, i64>,
+    source_file_cache: SourceCache,
 }
 
 impl ClassObjectsFinalize for Tsffs {