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-rw-r--r--llvm/docs/CommandGuide/llvm-symbolizer.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/docs/CommandGuide/llvm-symbolizer.rst b/llvm/docs/CommandGuide/llvm-symbolizer.rst
index b157f94ef22..bb60246c835 100644
--- a/llvm/docs/CommandGuide/llvm-symbolizer.rst
+++ b/llvm/docs/CommandGuide/llvm-symbolizer.rst
@@ -28,6 +28,12 @@ Object files can be specified together with the addresses either on standard
input or as positional arguments on the command-line, following any "DATA" or
"CODE" prefix.
+:program:`llvm-symbolizer` parses options from the environment variable
+``LLVM_SYMBOLIZER_OPTS`` after parsing options from the command line.
+``LLVM_SYMBOLIZER_OPTS`` is primarily useful for supplementing the command-line
+options when :program:`llvm-symbolizer` is invoked by another program or
+runtime.
+
EXAMPLES
--------
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