[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libubacktrace/backtracesymsfd.c b/ap/build/uClibc/libubacktrace/backtracesymsfd.c
new file mode 100644
index 0000000..66d7687
--- /dev/null
+++ b/ap/build/uClibc/libubacktrace/backtracesymsfd.c
@@ -0,0 +1,116 @@
+/* Write formatted list with names for addresses in backtrace to a file.
+ Copyright (C) 1998, 2000, 2003, 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA.
+
+ Based on glibc/sysdeps/generic/elf/backtracesymsfd.c
+
+ Copyright (C) 2010 STMicroelectronics Ltd
+ Author(s): Carmelo Amoroso <carmelo.amoroso@st.com>
+ * Modified to work with uClibc
+ - updated headers inclusion
+ - updated formatting and style
+ - updated to use dladdr from libdl
+ - updated to use snprintf instead of _itoa_word */
+
+#include <execinfo.h>
+#include <string.h>
+#include <sys/uio.h>
+#include <dlfcn.h>
+#include <stdio.h>
+#include <link.h> /* required for __ELF_NATIVE_CLASS */
+
+#if __ELF_NATIVE_CLASS == 32
+# define WORD_WIDTH 8
+#else
+/* We assyme 64bits. */
+# define WORD_WIDTH 16
+#endif
+
+#define BUF_SIZE (WORD_WIDTH + 1)
+
+void backtrace_symbols_fd (void *const *array, int size, int fd)
+{
+ struct iovec iov[9];
+ int cnt;
+
+ for (cnt = 0; cnt < size; ++cnt) {
+ char buf[BUF_SIZE];
+ Dl_info info;
+ size_t last = 0;
+ size_t len = 0;
+
+ memset(buf, 0, sizeof(buf));
+ if (dladdr (array[cnt], &info)
+ && info.dli_fname && info.dli_fname[0] != '\0') {
+ /* Name of the file. */
+ iov[0].iov_base = (void *) info.dli_fname;
+ iov[0].iov_len = strlen (info.dli_fname);
+ last = 1;
+
+ /* Symbol name. */
+ if (info.dli_sname != NULL) {
+ char buf2[BUF_SIZE];
+ memset(buf2, 0, sizeof(buf2));
+ size_t diff;
+
+ iov[1].iov_base = (void *) "(";
+ iov[1].iov_len = 1;
+ iov[2].iov_base = (void *) info.dli_sname;
+ iov[2].iov_len = strlen (info.dli_sname);
+
+ if (array[cnt] >= (void *) info.dli_saddr) {
+ iov[3].iov_base = (void *) "+0x";
+ diff = array[cnt] - info.dli_saddr;
+ } else {
+ iov[3].iov_base = (void *) "-0x";
+ diff = info.dli_saddr - array[cnt];
+ }
+
+ iov[3].iov_len = 3;
+
+ /* convert diff to a string in hex format */
+ len = snprintf(buf2, sizeof(buf2), "%lx", (unsigned long) diff);
+ iov[4].iov_base = buf2;
+ iov[4].iov_len = len;
+
+ iov[5].iov_base = (void *) ")";
+ iov[5].iov_len = 1;
+
+ last = 6;
+ }
+ }
+
+ iov[last].iov_base = (void *) "[0x";
+ iov[last].iov_len = 3;
+ ++last;
+
+ /* convert array[cnt] to a string in hex format */
+ len = snprintf(buf, sizeof(buf), "%lx", (unsigned long) array[cnt]);
+ iov[last].iov_base = buf;
+ iov[last].iov_len = len;
+
+ ++last;
+
+ iov[last].iov_base = (void *) "]\n";
+ iov[last].iov_len = 2;
+ ++last;
+
+ writev (fd, iov, last);
+ }
+}