Lines Matching +full:top +full:- +full:level
1 # SPDX-License-Identifier: GPL-2.0
11 # Same as cc-*option, but using CC_COMPAT instead of CC
14 CC_COMPAT += --target=arm-linux-gnueabi
25 cc32-option = $(call try-run,\
26 $(CC_COMPAT) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
27 cc32-disable-warning = $(call try-run,\
28 $(CC_COMPAT) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
31 # being that the 32-bit compiler may be older than the main (64-bit) compiler
32 # and therefore may not understand flags set using $(cc-option ...). Besides,
33 # arch-specific options should be taken from the arm Makefile instead of the
37 # KBUILD_CPPFLAGS and NOSTDINC_FLAGS from top-level Makefile
38 VDSO_CPPFLAGS := -DBUILD_VDSO -D__KERNEL__ -nostdinc
39 VDSO_CPPFLAGS += -isystem $(shell $(CC_COMPAT) -print-file-name=include 2>/dev/null)
43 # From top-level Makefile
45 VDSO_CAFLAGS += $(call cc32-option,-fno-PIE)
47 VDSO_CAFLAGS += -g
51 VDSO_CAFLAGS += $(call cc32-option,-fno-dwarf2-cfi-asm)
52 VDSO_CAFLAGS += -mabi=aapcs-linux -mfloat-abi=soft
54 VDSO_CAFLAGS += -mbig-endian
56 VDSO_CAFLAGS += -mlittle-endian
60 VDSO_CAFLAGS += -fPIC -fno-builtin -fno-stack-protector
61 VDSO_CAFLAGS += -DDISABLE_BRANCH_PROFILING
62 VDSO_CAFLAGS += -march=armv8-a
65 VDSO_CFLAGS += -DENABLE_COMPAT_VDSO=1
66 # KBUILD_CFLAGS from top-level Makefile
67 VDSO_CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
68 -fno-strict-aliasing -fno-common \
69 -Werror-implicit-function-declaration \
70 -Wno-format-security \
71 -Wdeclaration-after-statement \
72 -std=gnu11
73 VDSO_CFLAGS += -O2
74 # Some useful compiler-dependent flags from top-level Makefile
75 VDSO_CFLAGS += $(call cc32-option,-Wdeclaration-after-statement,)
76 VDSO_CFLAGS += $(call cc32-option,-Wno-pointer-sign)
77 VDSO_CFLAGS += -fno-strict-overflow
78 VDSO_CFLAGS += $(call cc32-option,-Werror=strict-prototypes)
79 VDSO_CFLAGS += -Werror=date-time
80 VDSO_CFLAGS += $(call cc32-option,-Werror=incompatible-pointer-types)
82 # The 32-bit compiler does not provide 128-bit integers, which are used in
86 VDSO_CFLAGS += -D__uint128_t='void*'
89 VDSO_CFLAGS += $(call cc32-disable-warning,shift-count-overflow)
90 VDSO_CFLAGS += -Wno-int-to-pointer-cast
92 # Compile as THUMB2 or ARM. Unwinding via frame-pointers in THUMB2 is
95 VDSO_CFLAGS += -mthumb -fomit-frame-pointer
97 VDSO_CFLAGS += -marm
101 VDSO_AFLAGS += -D__ASSEMBLY__
104 VDSO_LDFLAGS += -Bsymbolic --no-undefined -soname=linux-vdso.so.1
105 VDSO_LDFLAGS += -z max-page-size=4096 -z common-page-size=4096
106 VDSO_LDFLAGS += -shared --hash-style=sysv --build-id=sha1
107 VDSO_LDFLAGS += --orphan-handling=warn
116 c-obj-vdso := note.o
117 c-obj-vdso-gettimeofday := vgettimeofday.o
119 ifneq ($(c-gettimeofday-y),)
120 VDSO_CFLAGS_gettimeofday_o += -include $(c-gettimeofday-y)
123 VDSO_CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os
126 targets := $(c-obj-vdso) $(c-obj-vdso-gettimeofday) $(asm-obj-vdso) vdso.so vdso.so.dbg vdso.so.raw
127 c-obj-vdso := $(addprefix $(obj)/, $(c-obj-vdso))
128 c-obj-vdso-gettimeofday := $(addprefix $(obj)/, $(c-obj-vdso-gettimeofday))
129 asm-obj-vdso := $(addprefix $(obj)/, $(asm-obj-vdso))
130 obj-vdso := $(c-obj-vdso) $(c-obj-vdso-gettimeofday) $(asm-obj-vdso)
133 CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
135 include/generated/vdso32-offsets.h: $(obj)/vdso.so.dbg FORCE
139 $(obj)/vdso.so: OBJCOPYFLAGS := -S
147 $(obj)/vdso.so.raw: $(src)/vdso.lds $(obj-vdso) FORCE
151 $(c-obj-vdso): %.o: %.c FORCE
153 $(c-obj-vdso-gettimeofday): %.o: %.c FORCE
155 $(asm-obj-vdso): %.o: %.S FORCE
164 -T $(filter %.lds,$^) $(filter %.o,$^) -o $@
166 cmd_vdsocc = $(CC_COMPAT) -Wp,-MD,$(depfile) $(VDSO_CFLAGS) -c -o $@ $<
168 …cmd_vdsocc_gettimeofday = $(CC_COMPAT) -Wp,-MD,$(depfile) $(VDSO_CFLAGS) $(VDSO_CFLAGS_gettimeofda…
170 cmd_vdsoas = $(CC_COMPAT) -Wp,-MD,$(depfile) $(VDSO_AFLAGS) -c -o $@ $<
175 # Generate vDSO offsets using helper script (borrowed from the 64-bit vDSO)
176 gen-vdsosym := $(srctree)/$(src)/../vdso/gen_vdso_offsets.sh
179 cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
186 @mkdir -p $(MODLIB)/vdso