Commit | Line | Data |
---|---|---|
9e4a6648 | 1 | ifneq ($(O),) |
bf35182f | 2 | ifeq ($(origin O), command line) |
c883122a SR |
3 | dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),) |
4 | ABSOLUTE_O := $(shell cd $(O) ; pwd) | |
bf35182f | 5 | OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/) |
c883122a | 6 | COMMAND_O := O=$(ABSOLUTE_O) |
bf35182f DH |
7 | ifeq ($(objtree),) |
8 | objtree := $(O) | |
9 | endif | |
98d89bfd | 10 | endif |
9e4a6648 | 11 | endif |
98d89bfd | 12 | |
98d89bfd | 13 | # check that the output directory actually exists |
9e4a6648 | 14 | ifneq ($(OUTPUT),) |
98d89bfd BP |
15 | OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd) |
16 | $(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist)) | |
17 | endif | |
18 | ||
19 | # | |
20 | # Include saner warnings here, which can catch bugs: | |
21 | # | |
d8caf3eb BP |
22 | EXTRA_WARNINGS := -Wbad-function-cast |
23 | EXTRA_WARNINGS += -Wdeclaration-after-statement | |
24 | EXTRA_WARNINGS += -Wformat-security | |
25 | EXTRA_WARNINGS += -Wformat-y2k | |
26 | EXTRA_WARNINGS += -Winit-self | |
27 | EXTRA_WARNINGS += -Wmissing-declarations | |
28 | EXTRA_WARNINGS += -Wmissing-prototypes | |
29 | EXTRA_WARNINGS += -Wnested-externs | |
30 | EXTRA_WARNINGS += -Wno-system-headers | |
31 | EXTRA_WARNINGS += -Wold-style-definition | |
32 | EXTRA_WARNINGS += -Wpacked | |
33 | EXTRA_WARNINGS += -Wredundant-decls | |
34 | EXTRA_WARNINGS += -Wshadow | |
d8caf3eb BP |
35 | EXTRA_WARNINGS += -Wstrict-prototypes |
36 | EXTRA_WARNINGS += -Wswitch-default | |
37 | EXTRA_WARNINGS += -Wswitch-enum | |
38 | EXTRA_WARNINGS += -Wundef | |
39 | EXTRA_WARNINGS += -Wwrite-strings | |
40 | EXTRA_WARNINGS += -Wformat | |
98d89bfd | 41 | |
093b75ef ACM |
42 | ifneq ($(CC), clang) |
43 | EXTRA_WARNINGS += -Wstrict-aliasing=3 | |
44 | endif | |
45 | ||
3337e682 ACM |
46 | # Hack to avoid type-punned warnings on old systems such as RHEL5: |
47 | # We should be changing CFLAGS and checking gcc version, but this | |
48 | # will do for now and keep the above -Wstrict-aliasing=3 in place | |
49 | # in newer systems. | |
50 | # Needed for the __raw_cmpxchg in tools/arch/x86/include/asm/cmpxchg.h | |
51 | ifneq ($(filter 3.%,$(MAKE_VERSION)),) # make-3 | |
52 | EXTRA_WARNINGS += -fno-strict-aliasing | |
53 | endif | |
54 | ||
98d89bfd BP |
55 | ifneq ($(findstring $(MAKEFLAGS), w),w) |
56 | PRINT_DIR = --no-print-directory | |
57 | else | |
58 | NO_SUBDIR = : | |
59 | endif | |
60 | ||
6f0fa58e | 61 | ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),) |
e572d088 JP |
62 | silent=1 |
63 | endif | |
e572d088 | 64 | |
ca9dfc6c DH |
65 | # |
66 | # Define a callable command for descending to a new directory | |
67 | # | |
68 | # Call by doing: $(call descend,directory[,target]) | |
69 | # | |
70 | descend = \ | |
bf35182f | 71 | +mkdir -p $(OUTPUT)$(1) && \ |
2b73f65d | 72 | $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) |
ca9dfc6c | 73 | |
bf35182f | 74 | QUIET_SUBDIR0 = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir |
98d89bfd BP |
75 | QUIET_SUBDIR1 = |
76 | ||
e572d088 | 77 | ifneq ($(silent),1) |
65fb0992 IM |
78 | ifneq ($(V),1) |
79 | QUIET_CC = @echo ' CC '$@; | |
bdebbacd | 80 | QUIET_CC_FPIC = @echo ' CC FPIC '$@; |
65fb0992 IM |
81 | QUIET_AR = @echo ' AR '$@; |
82 | QUIET_LINK = @echo ' LINK '$@; | |
83 | QUIET_MKDIR = @echo ' MKDIR '$@; | |
84 | QUIET_GEN = @echo ' GEN '$@; | |
98d89bfd | 85 | QUIET_SUBDIR0 = +@subdir= |
65fb0992 IM |
86 | QUIET_SUBDIR1 = ;$(NO_SUBDIR) \ |
87 | echo ' SUBDIR '$$subdir; \ | |
98d89bfd | 88 | $(MAKE) $(PRINT_DIR) -C $$subdir |
65fb0992 IM |
89 | QUIET_FLEX = @echo ' FLEX '$@; |
90 | QUIET_BISON = @echo ' BISON '$@; | |
bf35182f DH |
91 | |
92 | descend = \ | |
65fb0992 | 93 | +@echo ' DESCEND '$(1); \ |
bf35182f | 94 | mkdir -p $(OUTPUT)$(1) && \ |
2b73f65d | 95 | $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) |
b7248def JO |
96 | |
97 | QUIET_CLEAN = @printf ' CLEAN %s\n' $1; | |
98 | QUIET_INSTALL = @printf ' INSTALL %s\n' $1; | |
65fb0992 | 99 | endif |
98d89bfd | 100 | endif |