]>
Commit | Line | Data |
---|---|---|
1 | # ========================================================================== | |
2 | # | |
3 | # make W=... settings | |
4 | # | |
5 | # W=1 - warnings that may be relevant and does not occur too often | |
6 | # W=2 - warnings that occur quite often but may still be relevant | |
7 | # W=3 - the more obscure warnings, can most likely be ignored | |
8 | # | |
9 | # $(call cc-option, -W...) handles gcc -W.. options which | |
10 | # are not supported by all versions of the compiler | |
11 | # ========================================================================== | |
12 | # | |
13 | # SPDX-License-Identifier: GPL-2.0 | |
14 | # | |
15 | ||
16 | ifeq ("$(origin W)", "command line") | |
17 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) | |
18 | endif | |
19 | ||
20 | ifdef KBUILD_ENABLE_EXTRA_GCC_CHECKS | |
21 | warning- := $(empty) | |
22 | ||
23 | warning-1 := -Wextra -Wunused -Wno-unused-parameter | |
24 | warning-1 += -Wmissing-declarations | |
25 | warning-1 += -Wmissing-format-attribute | |
26 | warning-1 += $(call cc-option, -Wmissing-prototypes) | |
27 | warning-1 += -Wold-style-definition | |
28 | warning-1 += $(call cc-option, -Wmissing-include-dirs) | |
29 | warning-1 += $(call cc-option, -Wunused-but-set-variable) | |
30 | warning-1 += $(call cc-disable-warning, missing-field-initializers) | |
31 | ||
32 | warning-2 := -Waggregate-return | |
33 | warning-2 += -Wcast-align | |
34 | warning-2 += -Wdisabled-optimization | |
35 | warning-2 += -Wnested-externs | |
36 | warning-2 += -Wshadow | |
37 | warning-2 += $(call cc-option, -Wlogical-op) | |
38 | warning-2 += $(call cc-option, -Wmissing-field-initializers) | |
39 | ||
40 | warning-3 := -Wbad-function-cast | |
41 | warning-3 += -Wcast-qual | |
42 | warning-3 += -Wconversion | |
43 | warning-3 += -Wpacked | |
44 | warning-3 += -Wpadded | |
45 | warning-3 += -Wpointer-arith | |
46 | warning-3 += -Wredundant-decls | |
47 | warning-3 += -Wswitch-default | |
48 | warning-3 += $(call cc-option, -Wpacked-bitfield-compat) | |
49 | warning-3 += $(call cc-option, -Wvla) | |
50 | ||
51 | warning := $(warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS))) | |
52 | warning += $(warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS))) | |
53 | warning += $(warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS))) | |
54 | ||
55 | ifeq ("$(strip $(warning))","") | |
56 | $(error W=$(KBUILD_ENABLE_EXTRA_GCC_CHECKS) is unknown) | |
57 | endif | |
58 | ||
59 | KBUILD_CFLAGS += $(warning) | |
60 | ||
61 | dtc-warning-2 += -Wnode_name_chars_strict | |
62 | dtc-warning-2 += -Wproperty_name_chars_strict | |
63 | ||
64 | dtc-warning := $(dtc-warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS))) | |
65 | dtc-warning += $(dtc-warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS))) | |
66 | dtc-warning += $(dtc-warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS))) | |
67 | ||
68 | DTC_FLAGS += $(dtc-warning) | |
69 | ||
70 | else | |
71 | ||
72 | # Disable noisy checks by default | |
73 | DTC_FLAGS += -Wno-unit_address_vs_reg | |
74 | DTC_FLAGS += -Wno-simple_bus_reg | |
75 | DTC_FLAGS += -Wno-unit_address_format | |
76 | DTC_FLAGS += -Wno-pci_bridge | |
77 | DTC_FLAGS += -Wno-pci_device_bus_num | |
78 | DTC_FLAGS += -Wno-pci_device_reg | |
79 | ||
80 | endif |