add allocators build support and two allocator definitions

The allocators created by the file allocators/BA_allocators.py
are those used in my BA thesis available at: https://muhq.space/ba.html.

allocators/no_falsesharing.py builds patched versions of tcmalloc and
glibc without any allocator inroduced falsesharing.

1 files changed, 44 insertions, 0 deletions

diff --git a/allocators/no_falsesharing.py b/allocators/no_falsesharing.py
new file mode 100644
index 0000000..880d4e8
--- /dev/null
+++ b/allocators/no_falsesharing.py
@@ -0,0 +1,44 @@
+import os
+import subprocess
+
+from src.allocator import library_path
+from src.allocator import Allocator as Alloc
+from src.allocator import Allocator_Patched as Alloc_Patched
+from src.allocator import Allocator_Sources as Alloc_Src
+from src.allocator import builddir
+
+optimisation_flag = "-O2"
+
+glibc_src = Alloc_Src("glibc",
+                      retrieve_cmds=["git clone git://sourceware.org/git/glibc.git"],
+                      prepare_cmds=["git checkout release/2.29/master"],
+                      reset_cmds=["git stash"])
+
+glibc = Alloc("glibc", sources=glibc_src,
+              build_cmds=["mkdir -p glibc-build",
+                          "cd glibc-build; {srcdir}/configure --prefix={dir}",
+                          "cd glibc-build; make",
+                          "cd glibc-build; make install"],
+              cmd_prefix="{dir}/lib/ld-linux-x86-64.so.2 --library-path {dir}/lib:"+library_path)
+
+glibc_nofs = Alloc_Patched("glibc_nofs", glibc,
+                           ["allocators/glibc_2.28_no_passive_falsesharing.patch"])
+
+tcmalloc_src = Alloc_Src("gperftools",
+                         ["git clone https://github.com/gperftools/gperftools.git"],
+                         ["git checkout gperftools-2.7", "./autogen.sh"],
+                         ["git stash"])
+
+tcmalloc = Alloc("tcmalloc", sources=tcmalloc_src,
+                 LD_PRELOAD="{dir}/lib/libtcmalloc.so",
+                 build_cmds=["cd {srcdir}; ./configure --prefix={dir} CXXFLAGS=" + optimisation_flag,
+                             "cd {srcdir}; make install -j4"],
+                 color="C3")
+
+tcmalloc_nofs = Alloc_Patched("tcmalloc_nofs", tcmalloc,
+                              ["allocators/tcmalloc_2.7_no_active_falsesharing.patch"],
+                              color="C4")
+
+allocators_to_build = [glibc, glibc_nofs, tcmalloc, tcmalloc_nofs]
+
+allocators = {a.name: a.build(verbose=verbose) for a in allocators_to_build}