igt_kms extensively uses line continuation when dumping state updates
at the debug level. They got badly mangled with the recent changes to
for the log handling functions. Two separate fixes:
- Don't prepend domain and other metainformation when it's just a
  continuation line.
- Dont add newlines when dumping the log recorder.

If someone interleaves different log level messages this will go awry,
but really just don't do that.

Cc: Thomas Wood <thomas.w...@intel.com>
Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
---
 lib/igt_core.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/igt_core.c b/lib/igt_core.c
index adfa597d60f6..8f75e48b117c 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -290,8 +290,7 @@ static void _igt_log_buffer_dump(void)
        i = log_buffer.start;
        do {
                char *last_line = log_buffer.entries[i];
-               fprintf(stderr, "%s%s", last_line,
-                       (last_line[strlen(last_line)-1] != '\n') ? "\n" : "");
+               fprintf(stderr, "%s", last_line);
                i++;
        } while (i != log_buffer.start && i != log_buffer.end);
 
@@ -1590,6 +1589,7 @@ void igt_vlog(const char *domain, enum igt_log_level 
level, const char *format,
                "CRITICAL",
                "NONE"
        };
+       static bool line_continuation = false;
 
        assert(format);
 
@@ -1605,12 +1605,18 @@ void igt_vlog(const char *domain, enum igt_log_level 
level, const char *format,
        if (vasprintf(&line, format, args) == -1)
                return;
 
-       if (asprintf(&formatted_line, "(%s:%d) %s%s%s: %s", program_name,
+       if (line_continuation) {
+               formatted_line = strdup(line);
+               if (!formatted_line)
+                       goto out;
+       } else if (asprintf(&formatted_line, "(%s:%d) %s%s%s: %s", program_name,
                     getpid(), (domain) ? domain : "", (domain) ? "-" : "",
                     igt_log_level_str[level], line) == -1) {
                goto out;
        }
 
+       line_continuation = line[strlen(line)] != '\n';
+
        /* append log buffer */
        _igt_log_buffer_append(formatted_line);
 
-- 
1.9.3

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