1 files changed, 93 insertions, 0 deletions
diff --git a/tools/jprof/coff.cpp b/tools/jprof/coff.cpp
new file mode 100644
index 0000000000..0efa83960c
--- /dev/null
+++ b/tools/jprof/coff.cpp
@@ -0,0 +1,93 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "leaky.h"
+
+#ifdef USE_COFF
+
+#  define LANGUAGE_C
+#  include <sym.h>
+#  include <cmplrs/stsupport.h>
+#  include <symconst.h>
+#  include <filehdr.h>
+#  include <ldfcn.h>
+#  include <string.h>
+#  include <stdlib.h>
+
+#  ifdef IRIX4
+extern "C" {
+extern char* demangle(char const* in);
+};
+#  else
+#    include <dem.h>
+#  endif
+
+static char* Demangle(char* rawName) {
+#  ifdef IRIX4
+  return strdup(demangle(rawName));
+#  else
+  char namebuf[4000];
+  demangle(rawName, namebuf);
+  return strdup(namebuf);
+#  endif
+}
+
+void leaky::readSymbols(const char* fileName) {
+  LDFILE* ldptr;
+
+  ldptr = ldopen(fileName, nullptr);
+  if (!ldptr) {
+    fprintf(stderr, "%s: unable to open \"%s\"\n", applicationName, fileName);
+    exit(-1);
+  }
+  if (PSYMTAB(ldptr) == 0) {
+    fprintf(stderr, "%s: \"%s\": has no symbol table\n", applicationName,
+            fileName);
+    exit(-1);
+  }
+
+  long isymMax = SYMHEADER(ldptr).isymMax;
+  long iextMax = SYMHEADER(ldptr).iextMax;
+  long iMax = isymMax + iextMax;
+
+  long alloced = 10000;
+  Symbol* syms = (Symbol*)malloc(sizeof(Symbol) * 10000);
+  Symbol* sp = syms;
+  Symbol* last = syms + alloced;
+  SYMR symr;
+
+  for (long isym = 0; isym < iMax; isym++) {
+    if (ldtbread(ldptr, isym, &symr) != SUCCESS) {
+      fprintf(stderr, "%s: can't read symbol #%d\n", applicationName, isym);
+      exit(-1);
+    }
+    if (isym < isymMax) {
+      if ((symr.st == stStaticProc) ||
+          ((symr.st == stProc) &&
+           ((symr.sc == scText) || (symr.sc == scAbs))) ||
+          ((symr.st == stBlock) && (symr.sc == scText))) {
+        // Text symbol. Set name field to point to the symbol name
+        sp->name = Demangle(ldgetname(ldptr, &symr));
+        sp->address = symr.value;
+        sp++;
+        if (sp >= last) {
+          long n = alloced + 10000;
+          syms = (Symbol*)realloc(syms, (size_t)(sizeof(Symbol) * n));
+          last = syms + n;
+          sp = syms + alloced;
+          alloced = n;
+        }
+      }
+    }
+  }
+
+  int interesting = sp - syms;
+  if (!quiet) {
+    printf("Total of %d symbols\n", interesting);
+  }
+  usefulSymbols = interesting;
+  externalSymbols = syms;
+}
+
+#endif /* USE_COFF */