Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/tests/get-lines.c b/tests/get-lines.c
new file mode 100644
index 0000000..188d016
--- /dev/null
+++ b/tests/get-lines.c
@@ -0,0 +1,160 @@
+/* Copyright (C) 2002, 2004 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <fcntl.h>
+#include <inttypes.h>
+#include <libelf.h>
+#include ELFUTILS_HEADER(dw)
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+
+int
+main (int argc, char *argv[])
+{
+ int result = 0;
+ int cnt;
+
+ for (cnt = 1; cnt < argc; ++cnt)
+ {
+ int fd = open (argv[cnt], O_RDONLY);
+
+ Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
+ if (dbg == NULL)
+ {
+ printf ("%s not usable: %s\n", argv[cnt], dwarf_errmsg (-1));
+ close (fd);
+ continue;
+ }
+
+ Dwarf_Off cuoff = 0;
+ Dwarf_Off old_cuoff = 0;
+ size_t hsize;
+ Dwarf_Off ao;
+ uint8_t asz;
+ uint8_t osz;
+ while (dwarf_nextcu (dbg, cuoff, &cuoff, &hsize, &ao, &asz, &osz) == 0)
+ {
+ printf ("cuhl = %zu, o = %llu, asz = %hhu, osz = %hhu, ncu = %llu\n",
+ hsize, (unsigned long long int) ao,
+ asz, osz, (unsigned long long int) cuoff);
+
+ /* Get the DIE for the CU. */
+ Dwarf_Die die;
+ if (dwarf_offdie (dbg, old_cuoff + hsize, &die) == NULL)
+ {
+ /* Something went wrong. */
+ printf ("%s: cannot get CU die\n", argv[cnt]);
+ result = 1;
+ break;
+ }
+ old_cuoff = cuoff;
+
+ Dwarf_Lines *lb;
+ size_t nlb;
+ if (dwarf_getsrclines (&die, &lb, &nlb) != 0)
+ {
+ printf ("%s: cannot get lines\n", argv[cnt]);
+ result = 1;
+ break;
+ }
+
+ printf (" %zu lines\n", nlb);
+
+ for (size_t i = 0; i < nlb; ++i)
+ {
+ Dwarf_Line *l = dwarf_onesrcline (lb, i);
+ if (l == NULL)
+ {
+ printf ("%s: cannot get individual line\n", argv[cnt]);
+ result = 1;
+ break;
+ }
+
+ Dwarf_Addr addr;
+ if (dwarf_lineaddr (l, &addr) != 0)
+ addr = 0;
+ const char *file = dwarf_linesrc (l, NULL, NULL);
+ int line;
+ if (dwarf_lineno (l, &line) != 0)
+ line = 0;
+
+ printf ("%" PRIx64 ": %s:%d:", (uint64_t) addr,
+ file ?: "???", line);
+
+ /* Getting the file path through the Dwarf_Files should
+ result in the same path. */
+ Dwarf_Files *files;
+ size_t idx;
+ if (dwarf_line_file (l, &files, &idx) != 0)
+ {
+ printf ("%s: cannot get file from line (%zd): %s\n",
+ argv[cnt], i, dwarf_errmsg (-1));
+ result = 1;
+ break;
+ }
+ const char *path = dwarf_filesrc (files, idx, NULL, NULL);
+ if ((path == NULL && file != NULL)
+ || (path != NULL && file == NULL)
+ || (strcmp (file, path) != 0))
+ {
+ printf ("%s: line %zd srcline (%s) != file srcline (%s)\n",
+ argv[cnt], i, file ?: "???", path ?: "???");
+ result = 1;
+ break;
+ }
+
+ int column;
+ if (dwarf_linecol (l, &column) != 0)
+ column = 0;
+ if (column >= 0)
+ printf ("%d:", column);
+
+ bool is_stmt;
+ if (dwarf_linebeginstatement (l, &is_stmt) != 0)
+ is_stmt = false;
+ bool end_sequence;
+ if (dwarf_lineendsequence (l, &end_sequence) != 0)
+ end_sequence = false;
+ bool basic_block;
+ if (dwarf_lineblock (l, &basic_block) != 0)
+ basic_block = false;
+ bool prologue_end;
+ if (dwarf_lineprologueend (l, &prologue_end) != 0)
+ prologue_end = false;
+ bool epilogue_begin;
+ if (dwarf_lineepiloguebegin (l, &epilogue_begin) != 0)
+ epilogue_begin = false;
+
+ printf (" is_stmt:%s, end_seq:%s, bb:%s, prologue:%s, epilogue:%s\n",
+ is_stmt ? "yes" : "no", end_sequence ? "yes" : "no",
+ basic_block ? "yes" : "no", prologue_end ? "yes" : "no",
+ epilogue_begin ? "yes" : "no");
+ }
+ }
+
+ dwarf_end (dbg);
+ close (fd);
+ }
+
+ return result;
+}