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Add memory hardening build option #32

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Merged
Spartan322 merged 1 commit into from
Jan 16, 2026
+18 −0
Merged

Add memory hardening build option #32

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3 changes: 3 additions & 0 deletions build/common_compiler_flags.py
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,9 @@ def generate(env):
elif env["optimize"] == "debug":
env.Append(CPPDEFINES=["OPT_DEBUG_ENABLED"])

if env["harden_memory"] == "fast":
env.Append(CPPDEFINES=["_GLIBCXX_ASSERTIONS", ("_LIBCPP_HARDENING_MODE", "_LIBCPP_HARDENING_MODE_FAST"), ("_MSVC_STL_HARDENING", 1)])

# Set optimize and debug_symbols flags.
# "custom" means do nothing and let users set their own optimization flags.
if env.get("is_msvc", False):
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15 changes: 15 additions & 0 deletions tools/targets.py
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Expand Up @@ -59,6 +59,14 @@ def options(opts):
)
opts.Add(BoolVariable("debug_symbols", "Build with debugging symbols", True))
opts.Add(BoolVariable("dev_build", "Developer build with dev-only debugging code (DEV_ENABLED)", False))
opts.Add(EnumVariable(
"harden_memory",
"Library memory hardening (by default inferred from 'dev_build')",
"auto",
["auto", "none", "fast"],
ignorecase=2
)
)


def exists(env):
Expand Down Expand Up @@ -89,6 +97,13 @@ def generate(env):
opt_level = "speed"
env["optimize"] = ARGUMENTS.get("optimize", opt_level)

if env["harden_memory"] == "auto":
if env.dev_build:
harden_level = "none"
else:
harden_level = "fast"
env["harden_memory"] = ARGUMENTS.get("harden_memory", harden_level)

env["debug_symbols"] = get_cmdline_bool("debug_symbols", env.dev_build)

if env.use_hot_reload:
Expand Down