Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 508 insertions, 0 deletions

diff --git a/src/fluent-bit/lib/libbacktrace-8602fda/xztest.c b/src/fluent-bit/lib/libbacktrace-8602fda/xztest.c
new file mode 100644
index 000000000..b2533cb18
--- /dev/null
+++ b/src/fluent-bit/lib/libbacktrace-8602fda/xztest.c
@@ -0,0 +1,508 @@
+/* xztest.c -- Test for libbacktrace LZMA decoder.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
+   Written by Ian Lance Taylor, Google.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    (1) Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+
+    (2) Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.
+
+    (3) The name of the author may not be used to
+    endorse or promote products derived from this software without
+    specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.  */
+
+#include "config.h"
+
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#ifdef HAVE_LIBLZMA
+#include <lzma.h>
+#endif
+
+#include "backtrace.h"
+#include "backtrace-supported.h"
+
+#include "internal.h"
+#include "testlib.h"
+
+#ifndef HAVE_CLOCK_GETTIME
+
+typedef int xclockid_t;
+
+static int
+xclock_gettime (xclockid_t id ATTRIBUTE_UNUSED,
+		struct timespec *ts ATTRIBUTE_UNUSED)
+{
+  errno = EINVAL;
+  return -1;
+}
+
+#define clockid_t xclockid_t
+#define clock_gettime xclock_gettime
+#undef CLOCK_REALTIME
+#define CLOCK_REALTIME 0
+
+#endif /* !defined(HAVE_CLOCK_GETTIME) */
+
+#ifdef CLOCK_PROCESS_CPUTIME_ID
+#define LIBLZMA_CLOCK_GETTIME_ARG CLOCK_PROCESS_CPUTIME_ID
+#else
+#define LIBLZMA_CLOCK_GETTIME_ARG CLOCK_REALTIME
+#endif
+
+/* Some tests for the local lzma inflation code.  */
+
+struct lzma_test
+{
+  const char *name;
+  const char *uncompressed;
+  size_t uncompressed_len;
+  const char *compressed;
+  size_t compressed_len;
+};
+
+/* Error callback.  */
+
+static void
+error_callback_compress (void *vdata ATTRIBUTE_UNUSED, const char *msg,
+			 int errnum)
+{
+  fprintf (stderr, "%s", msg);
+  if (errnum > 0)
+    fprintf (stderr, ": %s", strerror (errnum));
+  fprintf (stderr, "\n");
+  exit (EXIT_FAILURE);
+}
+
+static const struct lzma_test tests[] =
+{
+  {
+    "empty",
+    "",
+    0,
+    ("\xfd\x37\x7a\x58\x5a\x00\x00\x04\xe6\xd6\xb4\x46\x00\x00\x00\x00"
+     "\x1c\xdf\x44\x21\x1f\xb6\xf3\x7d\x01\x00\x00\x00\x00\x04\x59\x5a"),
+    32,
+  },
+  {
+    "hello",
+    "hello, world\n",
+    0,
+    ("\xfd\x37\x7a\x58\x5a\x00\x00\x04\xe6\xd6\xb4\x46\x02\x00\x21\x01"
+     "\x16\x00\x00\x00\x74\x2f\xe5\xa3\x01\x00\x0c\x68\x65\x6c\x6c\x6f"
+     "\x2c\x20\x77\x6f\x72\x6c\x64\x0a\x00\x00\x00\x00\x7b\x46\x5a\x81"
+     "\xc9\x12\xb8\xea\x00\x01\x25\x0d\x71\x19\xc4\xb6\x1f\xb6\xf3\x7d"
+     "\x01\x00\x00\x00\x00\x04\x59\x5a"),
+    72,
+  },
+  {
+    "goodbye",
+    "goodbye, world",
+    0,
+    ("\xfd\x37\x7a\x58\x5a\x00\x00\x04\xe6\xd6\xb4\x46\x02\x00\x21\x01"
+     "\x16\x00\x00\x00\x74\x2f\xe5\xa3\x01\x00\x0d\x67\x6f\x6f\x64\x62"
+     "\x79\x65\x2c\x20\x77\x6f\x72\x6c\x64\x00\x00\x00\xf6\xf8\xa3\x33"
+     "\x8c\x4e\xc9\x68\x00\x01\x26\x0e\x08\x1b\xe0\x04\x1f\xb6\xf3\x7d"
+     "\x01\x00\x00\x00\x00\x04\x59\x5a"),
+    72,
+  },
+};
+
+/* Test the hand coded samples.  */
+
+static void
+test_samples (struct backtrace_state *state)
+{
+  size_t i;
+
+  for (i = 0; i < sizeof tests / sizeof tests[0]; ++i)
+    {
+      unsigned char *uncompressed;
+      size_t uncompressed_len;
+
+      uncompressed = NULL;
+      uncompressed_len = 0;
+      if (!backtrace_uncompress_lzma (state,
+				      ((const unsigned char *)
+				       tests[i].compressed),
+				      tests[i].compressed_len,
+				      error_callback_compress, NULL,
+				      &uncompressed, &uncompressed_len))
+	{
+	  fprintf (stderr, "test %s: uncompress failed\n", tests[i].name);
+	  ++failures;
+	}
+      else
+	{
+	  size_t v;
+
+	  v = tests[i].uncompressed_len;
+	  if (v == 0)
+	    v = strlen (tests[i].uncompressed);
+	  if (uncompressed_len != v)
+	    {
+	      fprintf (stderr,
+		       "test %s: got uncompressed length %zu, want %zu\n",
+		       tests[i].name, uncompressed_len, v);
+	      ++failures;
+	    }
+	  else if (memcmp (tests[i].uncompressed, uncompressed, v) != 0)
+	    {
+	      size_t j;
+
+	      fprintf (stderr, "test %s: uncompressed data mismatch\n",
+		       tests[i].name);
+	      for (j = 0; j < v; ++j)
+		if (tests[i].uncompressed[j] != uncompressed[j])
+		  fprintf (stderr, "  %zu: got %#x want %#x\n", j,
+			   uncompressed[j], tests[i].uncompressed[j]);
+	      ++failures;
+	    }
+	  else
+	    printf ("PASS: lzma %s\n", tests[i].name);
+
+	  backtrace_free (state, uncompressed, uncompressed_len,
+			  error_callback_compress, NULL);
+	}
+    }
+}
+
+#if HAVE_LIBLZMA
+
+/* Given a set of TRIALS timings, discard the lowest and highest
+   values and return the mean average of the rest.  */
+
+static size_t
+average_time (const size_t *times, size_t trials)
+{
+  size_t imax;
+  size_t max;
+  size_t imin;
+  size_t min;
+  size_t i;
+  size_t sum;
+
+  imin = 0;
+  imax = 0;
+  min = times[0];
+  max = times[0];
+  for (i = 1; i < trials; ++i)
+    {
+      if (times[i] < min)
+	{
+	  imin = i;
+	  min = times[i];
+	}
+      if (times[i] > max)
+	{
+	  imax = i;
+	  max = times[i];
+	}
+    }
+
+  sum = 0;
+  for (i = 0; i < trials; ++i)
+    {
+      if (i != imax && i != imin)
+	sum += times[i];
+    }
+  return sum / (trials - 2);
+}
+
+#endif
+
+/* Test a larger text, if available.  */
+
+static void
+test_large (struct backtrace_state *state ATTRIBUTE_UNUSED)
+{
+#if HAVE_LIBLZMA
+  unsigned char *orig_buf;
+  size_t orig_bufsize;
+  size_t i;
+  lzma_stream initial_stream = LZMA_STREAM_INIT;
+  lzma_stream stream;
+  unsigned char *compressed_buf;
+  size_t compressed_bufsize;
+  unsigned char *uncompressed_buf;
+  size_t uncompressed_bufsize;
+  unsigned char *spare_buf;
+  int r;
+  clockid_t cid;
+  struct timespec ts1;
+  struct timespec ts2;
+  size_t ctime;
+  size_t ztime;
+  const size_t trials = 16;
+  size_t ctimes[16];
+  size_t ztimes[16];
+  static const char * const names[] = {
+    "Isaac.Newton-Opticks.txt",
+    "../libgo/go/testdata/Isaac.Newton-Opticks.txt",
+  };
+
+  orig_buf = NULL;
+  orig_bufsize = 0;
+  uncompressed_buf = NULL;
+  compressed_buf = NULL;
+
+  for (i = 0; i < sizeof names / sizeof names[0]; ++i)
+    {
+      size_t len;
+      char *namebuf;
+      FILE *e;
+      struct stat st;
+      char *rbuf;
+      size_t got;
+
+      len = strlen (SRCDIR) + strlen (names[i]) + 2;
+      namebuf = malloc (len);
+      if (namebuf == NULL)
+	{
+	  perror ("malloc");
+	  goto fail;
+	}
+      snprintf (namebuf, len, "%s/%s", SRCDIR, names[i]);
+      e = fopen (namebuf, "r");
+      free (namebuf);
+      if (e == NULL)
+	continue;
+      if (fstat (fileno (e), &st) < 0)
+	{
+	  perror ("fstat");
+	  fclose (e);
+	  continue;
+	}
+      rbuf = malloc (st.st_size);
+      if (rbuf == NULL)
+	{
+	  perror ("malloc");
+	  goto fail;
+	}
+      got = fread (rbuf, 1, st.st_size, e);
+      fclose (e);
+      if (got > 0)
+	{
+	  orig_buf = (unsigned char *) rbuf;
+	  orig_bufsize = got;
+	  break;
+	}
+      free (rbuf);
+    }
+
+  if (orig_buf == NULL)
+    {
+      /* We couldn't find an input file.  */
+      printf ("UNSUPPORTED: lzma large\n");
+      return;
+    }
+
+  stream = initial_stream;
+  r =  lzma_easy_encoder (&stream, 6, LZMA_CHECK_CRC32);
+  if (r != LZMA_OK)
+    {
+      fprintf (stderr, "lzma_easy_encoder failed: %d\n", r);
+      goto fail;
+    }
+
+  compressed_bufsize = orig_bufsize + 100;
+  compressed_buf = malloc (compressed_bufsize);
+  if (compressed_buf == NULL)
+    {
+      perror ("malloc");
+      goto fail;
+    }
+
+  stream.next_in = orig_buf;
+  stream.avail_in = orig_bufsize;
+  stream.next_out = compressed_buf;
+  stream.avail_out = compressed_bufsize;
+
+  do
+    {
+      r = lzma_code (&stream, LZMA_FINISH);
+      if (r != LZMA_OK && r != LZMA_STREAM_END)
+	{
+	  fprintf (stderr, "lzma_code failed: %d\n", r);
+	  goto fail;
+	}
+    }
+  while (r != LZMA_STREAM_END);
+
+  compressed_bufsize = stream.total_out;
+
+  if (!backtrace_uncompress_lzma (state, (unsigned char *) compressed_buf,
+				  compressed_bufsize,
+				  error_callback_compress, NULL,
+				  &uncompressed_buf, &uncompressed_bufsize))
+    {
+      fprintf (stderr, "lzma large: backtrace_uncompress_lzma failed\n");
+      goto fail;
+    }
+
+  if (uncompressed_bufsize != orig_bufsize)
+    {
+      fprintf (stderr,
+	       "lzma large: got uncompressed length %zu, want %zu\n",
+	       uncompressed_bufsize, orig_bufsize);
+      goto fail;
+    }
+
+  if (memcmp (uncompressed_buf, orig_buf, uncompressed_bufsize) != 0)
+    {
+      fprintf (stderr, "lzma large: uncompressed data mismatch\n");
+      goto fail;
+    }
+
+  printf ("PASS: lzma large\n");
+
+  spare_buf = malloc (orig_bufsize);
+  if (spare_buf == NULL)
+    {
+      perror ("malloc");
+      goto fail;
+    }
+
+  for (i = 0; i < trials; ++i)
+    {
+      cid = LIBLZMA_CLOCK_GETTIME_ARG;
+      if (clock_gettime (cid, &ts1) < 0)
+	{
+	  if (errno == EINVAL)
+	    return;
+	  perror ("clock_gettime");
+	  return;
+	}
+
+      if (!backtrace_uncompress_lzma (state,
+				      (unsigned char *) compressed_buf,
+				      compressed_bufsize,
+				      error_callback_compress, NULL,
+				      &uncompressed_buf,
+				      &uncompressed_bufsize))
+	{
+	  fprintf (stderr,
+		   ("lzma large: "
+		    "benchmark backtrace_uncompress_lzma failed\n"));
+	  return;
+	}
+
+      if (clock_gettime (cid, &ts2) < 0)
+	{
+	  perror ("clock_gettime");
+	  return;
+	}
+
+      ctime = (ts2.tv_sec - ts1.tv_sec) * 1000000000;
+      ctime += ts2.tv_nsec - ts1.tv_nsec;
+      ctimes[i] = ctime;
+
+      stream = initial_stream;
+
+      r = lzma_auto_decoder (&stream, UINT64_MAX, 0);
+      if (r != LZMA_OK)
+	{
+	  fprintf (stderr, "lzma_stream_decoder failed: %d\n", r);
+	  goto fail;
+	}
+
+      stream.next_in = compressed_buf;
+      stream.avail_in = compressed_bufsize;
+      stream.next_out = spare_buf;
+      stream.avail_out = orig_bufsize;
+
+      if (clock_gettime (cid, &ts1) < 0)
+	{
+	  perror("clock_gettime");
+	  return;
+	}
+
+      do
+	{
+	  r = lzma_code (&stream, LZMA_FINISH);
+	  if (r != LZMA_OK && r != LZMA_STREAM_END)
+	    {
+	      fprintf (stderr, "lzma_code failed: %d\n", r);
+	      goto fail;
+	    }
+	}
+      while (r != LZMA_STREAM_END);
+
+      if (clock_gettime (cid, &ts2) < 0)
+	{
+	  perror ("clock_gettime");
+	  return;
+	}
+
+      ztime = (ts2.tv_sec - ts1.tv_sec) * 1000000000;
+      ztime += ts2.tv_nsec - ts1.tv_nsec;
+      ztimes[i] = ztime;
+    }
+
+  /* Toss the highest and lowest times and average the rest.  */
+  ctime = average_time (ctimes, trials);
+  ztime = average_time (ztimes, trials);
+
+  printf ("backtrace: %zu ns\n", ctime);
+  printf ("liblzma  : %zu ns\n", ztime);
+  printf ("ratio    : %g\n", (double) ztime / (double) ctime);
+
+  return;
+
+ fail:
+  printf ("FAIL: lzma large\n");
+  ++failures;
+
+  if (orig_buf != NULL)
+    free (orig_buf);
+  if (compressed_buf != NULL)
+    free (compressed_buf);
+  if (uncompressed_buf != NULL)
+    free (uncompressed_buf);
+
+#else /* !HAVE_LIBLZMA */
+
+ printf ("UNSUPPORTED: lzma large\n");
+
+#endif /* !HAVE_LIBLZMA */
+}
+
+int
+main (int argc ATTRIBUTE_UNUSED, char **argv)
+{
+  struct backtrace_state *state;
+
+  state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS,
+				  error_callback_create, NULL);
+
+  test_samples (state);
+  test_large (state);
+
+  exit (failures != 0 ? EXIT_FAILURE : EXIT_SUCCESS);
+}