Add `--symbol-filter` option as synonym for `--symbols`

The new name is used to emphasise that this option takes not only a
list of symbols but filter expression.

PiperOrigin-RevId: 563744938
Change-Id: I7d9634fbfcac58c016eb9ca89d7a31f1ba4ec1e4

2 files changed, 3 insertions, 2 deletions

diff --git a/doc/stg.md b/doc/stg.md
index 88df9b5..d6ddd5f 100644
--- a/doc/stg.md
+++ b/doc/stg.md
@@ -14,7 +14,7 @@ stg
   [-i|--info]
   [-d|--keep-duplicates]
   [-t|--types]
-  [-S|--symbols <filter>]
+  [-S|--symbols|--symbol-filter <filter>]
   [--skip-dwarf]
   [-a|--abi|-b|--btf|-e|--elf|-s|--stg] [file] ...
   [{-o|--output} {filename|-}] ...
diff --git a/stg.cc b/stg.cc
index 8948ac0..e699d5a 100644
--- a/stg.cc
+++ b/stg.cc
@@ -127,6 +127,7 @@ int main(int argc, char* argv[]) {
       {"keep-duplicates", no_argument,       nullptr, 'd'       },
       {"types",           no_argument,       nullptr, 't'       },
       {"symbols",         required_argument, nullptr, 'S'       },
+      {"symbol-filter",   required_argument, nullptr, 'S'       },
       {"abi",             no_argument,       nullptr, 'a'       },
       {"btf",             no_argument,       nullptr, 'b'       },
       {"elf",             no_argument,       nullptr, 'e'       },
@@ -141,7 +142,7 @@ int main(int argc, char* argv[]) {
               << "  [-i|--info]\n"
               << "  [-d|--keep-duplicates]\n"
               << "  [-t|--types]\n"
-              << "  [-S|--symbols <filter>]\n"
+              << "  [-S|--symbols|--symbol-filter <filter>]\n"
               << "  [--skip-dwarf]\n"
               << "  [-a|--abi|-b|--btf|-e|--elf|-s|--stg] [file] ...\n"
               << "  [{-o|--output} {filename|-}] ...\n"