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-rw-r--r--llvm/docs/CommandGuide/llvm-symbolizer.rst31
1 files changed, 31 insertions, 0 deletions
diff --git a/llvm/docs/CommandGuide/llvm-symbolizer.rst b/llvm/docs/CommandGuide/llvm-symbolizer.rst
index b794f56246f..4dd6d9bf28b 100644
--- a/llvm/docs/CommandGuide/llvm-symbolizer.rst
+++ b/llvm/docs/CommandGuide/llvm-symbolizer.rst
@@ -128,6 +128,37 @@ OPTIONS
Add the specified offset to object file addresses when performing lookups. This
can be used to perform lookups as if the object were relocated by the offset.
+.. option:: -output-style=<LLVM|GNU>
+
+ Specify the preferred output style. Defaults to ``LLVM``. When the output
+ style is set to ``GNU``, the tool follows the style of GNU's **addr2line**.
+ The differences from the ``LLVM`` style are:
+
+ * Does not print column of a source code location.
+
+ * Does not add an empty line after the report for an address.
+
+ * Does not replace the name of an inlined function with the name of the
+ topmost caller when inlined frames are not shown and ``-use-symbol-table``
+ is on.
+
+ .. code-block:: console
+
+ $ llvm-symbolizer -p -e=addr.exe 0x40054d 0x400568
+ inc at /tmp/x.c:3:3
+ (inlined by) main at /tmp/x.c:14:0
+
+ main at /tmp/x.c:14:3
+
+ $ llvm-symbolizer --output-style=LLVM -p -i=0 -e=addr.exe 0x40054d 0x400568
+ main at /tmp/x.c:3:3
+
+ main at /tmp/x.c:14:3
+
+ $ llvm-symbolizer --output-style=GNU -p -i=0 -e=addr.exe 0x40054d 0x400568
+ inc at /tmp/x.c:3
+ main at /tmp/x.c:14
+
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