1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
We already set some of these in the toolchain, and the rest may conflict
with flags the user can set (like -fcf-protection vs -mindirect-brnanch=thunk).
--- a/meson.build
+++ b/meson.build
@@ -30,9 +30,7 @@ project('leancrypto', 'c',
cc = meson.get_compiler('c')
# Hardening Compiler flags
-add_global_arguments([ '-fstack-protector-strong',
- '-fwrapv',
- '--param', 'ssp-buffer-size=4',
+add_global_arguments([ '-fwrapv',
'-fvisibility=hidden',
'-Wconversion',
'-Wcast-align',
@@ -57,36 +55,14 @@ if cc.has_argument('-Wdocumentation')
language: 'c')
endif
-# More hardening
-if cc.has_argument('-fzero-call-used-regs=used-gpr')
- add_global_arguments([ '-fzero-call-used-regs=used-gpr' ],
- language: 'c')
-endif
-if cc.has_argument('-ftrivial-auto-var-init=zero')
- add_global_arguments([ '-ftrivial-auto-var-init=zero' ],
- language: 'c')
-endif
if cc.has_argument('-Wshorten-64-to-32')
add_global_arguments([ '-Wshorten-64-to-32' ],
language: 'c')
endif
-# x86_64 hardening
-if cc.has_argument('-fcf-protection=full')
- add_global_arguments([ '-fcf-protection=full' ],
- language: 'c')
-endif
-
-# ARM64 hardening
-if cc.has_argument('-mbranch-protection=standard')
- add_global_arguments([ '-mbranch-protection=standard' ], language: 'c')
-endif
-
if get_option('optimization') == '0'
add_global_arguments([ '-DDEBUG' ], language: 'c')
elif get_option('efi').disabled()
- add_global_arguments([ '-U_FORTIFY_SOURCE' ], language: 'c')
- add_global_arguments([ '-D_FORTIFY_SOURCE=3' ], language: 'c')
endif
if get_option('enable_selftests').enabled()
|
