Merge pull request #136 from RISCVERS/log-buffer

Log buffer

src/test/csrc/common.h

@@ -22,7 +22,7 @@
 #define ANSI_COLOR_CYAN    "\x1b[36m"
 #define ANSI_COLOR_RESET   "\x1b[0m"
 
-#define eprintf(...) fprintf(stderr, ## __VA_ARGS__)
+#define eprintf(...) fprintf(stdout, ## __VA_ARGS__)
 
 #define demand(cond,str,...) \
   do { if(!(cond)) { \

src/test/csrc/emu.h

@@ -15,6 +15,8 @@
 
 #define DIFFTEST_WIDTH 6
 
+static char mybuf[BUFSIZ];
+
 class Emulator {
   const char *image;
   const char *mainargs;
@@ -76,6 +78,8 @@ class Emulator {
     // init emu
     auto args = parse_args(argc, argv);
 
+    setbuf(stderr, mybuf);
+
     // srand
     srand(seed);
     srand48(seed);