compiletest: Allow for tests requiring profiler-rt or sanitizer-rt support.

Author: michaelwoerister

src/tools/compiletest/src/header.rs

@@ -88,6 +88,9 @@ impl EarlyProps {
             }
         }
 
+        let rustc_has_profiler_support = env::var_os("RUSTC_PROFILER_SUPPORT").is_some();
+        let rustc_has_sanitizer_support = env::var_os("RUSTC_SANITIZER_SUPPORT").is_some();
+
         iter_header(testfile, None, &mut |ln| {
             // we should check if any only-<platform> exists and if it exists
             // and does not matches the current platform, skip the test
@@ -116,6 +119,16 @@ impl EarlyProps {
                    config.parse_needs_matching_clang(ln) {
                     props.ignore = Ignore::Ignore;
                 }
+
+                if !rustc_has_profiler_support &&
+                   config.parse_needs_profiler_support(ln) {
+                    props.ignore = Ignore::Ignore;
+                }
+
+                if !rustc_has_sanitizer_support &&
+                   config.parse_needs_sanitizer_support(ln) {
+                    props.ignore = Ignore::Ignore;
+                }
             }
 
             if (config.mode == common::DebugInfoGdb || config.mode == common::DebugInfoBoth) &&
@@ -748,6 +761,14 @@ impl Config {
         self.parse_name_directive(line, "needs-matching-clang")
     }
 
+    fn parse_needs_profiler_support(&self, line: &str) -> bool {
+        self.parse_name_directive(line, "needs-profiler-support")
+    }
+
+    fn parse_needs_sanitizer_support(&self, line: &str) -> bool {
+        self.parse_name_directive(line, "needs-sanitizer-support")
+    }
+
     /// Parses a name-value directive which contains config-specific information, e.g., `ignore-x86`
     /// or `normalize-stderr-32bit`.
     fn parse_cfg_name_directive(&self, line: &str, prefix: &str) -> ParsedNameDirective {