[PATCH v3] buildtools: fix invalid symbols

[Mingjin Ye <mingjinx.ye@intel.com>]

In scenarios where a higher clang compiler is used and ASAN is enabled,
the generated ELF file will additionally insert undefined debug symbols
with the same prefix. This causes duplicate C code to be generated.

This patch fixes this issue by skipping the unspecified symbol type.

Fixes: 6c4bf8f42432 ("buildtools: add Python pmdinfogen")
Cc: stable@dpdk.org

Signed-off-by: Mingjin Ye <mingjinx.ye@intel.com>
---
 buildtools/pmdinfogen.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/buildtools/pmdinfogen.py b/buildtools/pmdinfogen.py
index 2a44f17bda..9896f107dc 100755
--- a/buildtools/pmdinfogen.py
+++ b/buildtools/pmdinfogen.py
@@ -70,6 +70,9 @@ def find_by_prefix(self, prefix):
         prefix = prefix.encode("utf-8") if self._legacy_elftools else prefix
         for i in range(self._symtab.num_symbols()):
             symbol = self._symtab.get_symbol(i)
+            # Skip unspecified symbol type
+            if symbol.entry.st_info['type'] == "STT_NOTYPE":
+                continue
             if symbol.name.startswith(prefix):
                 yield ELFSymbol(self._image, symbol)
 
-- 
2.25.1