From 860a3cbbd308e7f201281abdae0941733fb9ff98 Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Sun, 6 Apr 2025 03:02:34 -0400
Subject: [PATCH] add suppressions for dlopen() and friends

---
 tools/valgrind/README    | 26 ++++++++-------
 tools/valgrind/libc.supp | 69 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+), 12 deletions(-)
 create mode 100644 tools/valgrind/libc.supp

diff --git a/tools/valgrind/README b/tools/valgrind/README
index 277b1dfd1f..77479d52d3 100644
--- a/tools/valgrind/README
+++ b/tools/valgrind/README
@@ -6,14 +6,15 @@ when running "ctest -T memcheck". To manually add them to do a memory check
 on running LAMMPS, use a command line like following:
 
 valgrind --leak-check=full --show-leak-kinds=all --track-origins=yes \
-   --suppressions=/path/to/lammps/tools/valgrind/OpenMP.supp \
-   --suppressions=/path/to/lammps/tools/valgrind/OpenMPI.supp \
-   --suppressions=/path/to/lammps/tools/valgrind/MPICH.supp \
-   --suppressions=/path/to/lammps/tools/valgrind/LLVM.supp \
-   --suppressions=/path/to/lammps/tools/valgrind/Python3.supp \
+   --suppressions=/path/to/lammps/tools/valgrind/FlexiBLAS.supp \
    --suppressions=/path/to/lammps/tools/valgrind/GTest.supp \
    --suppressions=/path/to/lammps/tools/valgrind/Kokkos.supp \
-   --suppressions=/path/to/lammps/tools/valgrind/FlexiBLAS.supp \
+   --suppressions=/path/to/lammps/tools/valgrind/LLVM.supp \
+   --suppressions=/path/to/lammps/tools/valgrind/MPICH.supp \
+   --suppressions=/path/to/lammps/tools/valgrind/OpenMP.supp \
+   --suppressions=/path/to/lammps/tools/valgrind/OpenMPI.supp \
+   --suppressions=/path/to/lammps/tools/valgrind/Python3.supp \
+   --suppressions=/path/to/lammps/tools/valgrind/libc.supp \
    --suppressions=/path/to/lammps/tools/valgrind/readline.supp \
     lmp -in in.melt
 
@@ -22,15 +23,16 @@ Or you can create a file $HOME/.valgrindrc with one option per line:
 --leak-check=full
 --show-leak-kinds=all
 --track-origins=yes
---suppressions=/path/to/lammps/tools/valgrind/OpenMP.supp
---suppressions=/path/to/lammps/tools/valgrind/OpenMPI.supp
---suppressions=/path/to/lammps/tools/valgrind/MPICH.supp
---suppressions=/path/to/lammps/tools/valgrind/LLVM.supp
+--suppressions=/path/to/lammps/tools/valgrind/FlexiBLAS.supp
 --suppressions=/path/to/lammps/tools/valgrind/GTest.supp
 --suppressions=/path/to/lammps/tools/valgrind/Kokkos.supp
---suppressions=/path/to/lammps/tools/valgrind/FlexiBLAS.supp
---suppressions=/path/to/lammps/tools/valgrind/readline.supp
+--suppressions=/path/to/lammps/tools/valgrind/LLVM.supp
+--suppressions=/path/to/lammps/tools/valgrind/MPICH.supp
+--suppressions=/path/to/lammps/tools/valgrind/OpenMP.supp
+--suppressions=/path/to/lammps/tools/valgrind/OpenMPI.supp
 --suppressions=/path/to/lammps/tools/valgrind/Python3.supp
+--suppressions=/path/to/lammps/tools/valgrind/libc.supp
+--suppressions=/path/to/lammps/tools/valgrind/readline.supp
 
 These options will be automatically added to the valgrind
 command line, so it becomes: valgrind lmp -in in.melt
diff --git a/tools/valgrind/libc.supp b/tools/valgrind/libc.supp
new file mode 100644
index 0000000000..2b90fd3f1f
--- /dev/null
+++ b/tools/valgrind/libc.supp
@@ -0,0 +1,69 @@
+{
+   libc_dlopen1
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:malloc
+   fun:malloc
+   fun:strdup
+   fun:_dl_load_cache_lookup
+   fun:_dl_map_object
+   fun:dl_open_worker_begin
+   fun:_dl_catch_exception
+   fun:dl_open_worker
+   fun:_dl_catch_exception
+   fun:_dl_open
+   fun:do_dlopen
+   fun:_dl_catch_exception
+   fun:_dl_catch_error
+}
+{
+   libc_dlopen2
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:malloc
+   fun:*
+   fun:_dl_new_object
+   fun:_dl_map_object_from_fd
+   fun:_dl_map_object
+   fun:dl_open_worker_begin
+   fun:_dl_catch_exception
+   fun:dl_open_worker
+   fun:_dl_catch_exception
+   fun:_dl_open
+   fun:do_dlopen
+   fun:_dl_catch_exception
+   fun:_dl_catch_error
+}
+{
+   libc_dlopen3
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:calloc
+   fun:*
+   fun:_dl_check_map_versions
+   fun:dl_open_worker_begin
+   fun:_dl_catch_exception
+   fun:dl_open_worker
+   fun:_dl_catch_exception
+   fun:_dl_open
+   fun:do_dlopen
+   ...
+}
+{
+   libc_dlopen4
+   Memcheck:Leak
+   match-leak-kinds: reachable
+   fun:calloc
+   fun:*
+   fun:_dl_new_object
+   fun:_dl_map_object_from_fd
+   fun:_dl_map_object
+   fun:dl_open_worker_begin
+   fun:_dl_catch_exception
+   fun:dl_open_worker
+   fun:_dl_catch_exception
+   fun:_dl_open
+   fun:do_dlopen
+   fun:_dl_catch_exception
+   fun:_dl_catch_error
+}