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TOMOYO Linux Cross Reference
Linux/arch/mips/vdso/Makefile

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Diff markup

Differences between /arch/mips/vdso/Makefile (Version linux-6.12-rc7) and /arch/mips/vdso/Makefile (Version linux-5.12.19)


  1 # SPDX-License-Identifier: GPL-2.0                  1 # SPDX-License-Identifier: GPL-2.0
  2 # Objects to go into the VDSO.                      2 # Objects to go into the VDSO.
  3                                                     3 
  4 # Include the generic Makefile to check the bu !!   4 # Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before
                                                   >>   5 # the inclusion of generic Makefile.
                                                   >>   6 ARCH_REL_TYPE_ABS := R_MIPS_JUMP_SLOT|R_MIPS_GLOB_DAT
  5 include $(srctree)/lib/vdso/Makefile                7 include $(srctree)/lib/vdso/Makefile
  6                                                     8 
  7 obj-vdso-y := elf.o vgettimeofday.o sigreturn.      9 obj-vdso-y := elf.o vgettimeofday.o sigreturn.o
  8                                                    10 
  9 # Common compiler flags between ABIs.              11 # Common compiler flags between ABIs.
 10 ccflags-vdso := \                                  12 ccflags-vdso := \
 11         $(filter -I%,$(KBUILD_CFLAGS)) \           13         $(filter -I%,$(KBUILD_CFLAGS)) \
 12         $(filter -E%,$(KBUILD_CFLAGS)) \           14         $(filter -E%,$(KBUILD_CFLAGS)) \
 13         $(filter -mmicromips,$(KBUILD_CFLAGS))     15         $(filter -mmicromips,$(KBUILD_CFLAGS)) \
 14         $(filter -march=%,$(KBUILD_CFLAGS)) \      16         $(filter -march=%,$(KBUILD_CFLAGS)) \
 15         $(filter -m%-float,$(KBUILD_CFLAGS)) \     17         $(filter -m%-float,$(KBUILD_CFLAGS)) \
 16         $(filter -mno-loongson-%,$(KBUILD_CFLA     18         $(filter -mno-loongson-%,$(KBUILD_CFLAGS)) \
 17         $(CLANG_FLAGS) \                           19         $(CLANG_FLAGS) \
 18         -D__VDSO__                                 20         -D__VDSO__
 19                                                    21 
 20 ifndef CONFIG_64BIT                                22 ifndef CONFIG_64BIT
 21 ccflags-vdso += -DBUILD_VDSO32                     23 ccflags-vdso += -DBUILD_VDSO32
 22 endif                                              24 endif
 23                                                    25 
 24 #                                                  26 #
 25 # The -fno-jump-tables flag only prevents the      27 # The -fno-jump-tables flag only prevents the compiler from generating
 26 # jump tables but does not prevent the compile     28 # jump tables but does not prevent the compiler from emitting absolute
 27 # offsets.                                         29 # offsets.
 28 cflags-vdso := $(ccflags-vdso) \                   30 cflags-vdso := $(ccflags-vdso) \
 29         $(filter -W%,$(filter-out -Wa$(comma)%     31         $(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
 30         -O3 -g -fPIC -fno-strict-aliasing -fno     32         -O3 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \
 31         -mrelax-pic-calls $(call cc-option, -m     33         -mrelax-pic-calls $(call cc-option, -mexplicit-relocs) \
 32         -fno-stack-protector -fno-jump-tables      34         -fno-stack-protector -fno-jump-tables -DDISABLE_BRANCH_PROFILING \
 33         $(call cc-option, -fno-asynchronous-un     35         $(call cc-option, -fno-asynchronous-unwind-tables)
 34 aflags-vdso := $(ccflags-vdso) \                   36 aflags-vdso := $(ccflags-vdso) \
 35         -D__ASSEMBLY__ -Wa,-gdwarf-2               37         -D__ASSEMBLY__ -Wa,-gdwarf-2
 36                                                    38 
 37 ifneq ($(c-gettimeofday-y),)                       39 ifneq ($(c-gettimeofday-y),)
 38 CFLAGS_vgettimeofday.o = -include $(c-gettimeo     40 CFLAGS_vgettimeofday.o = -include $(c-gettimeofday-y)
 39                                                    41 
 40 # config-n32-o32-env.c prepares the environmen     42 # config-n32-o32-env.c prepares the environment to build a 32bit vDSO
 41 # library on a 64bit kernel.                       43 # library on a 64bit kernel.
 42 # Note: Needs to be included before than the g     44 # Note: Needs to be included before than the generic library.
 43 CFLAGS_vgettimeofday-o32.o = -include $(src)/c !!  45 CFLAGS_vgettimeofday-o32.o = -include $(srctree)/$(src)/config-n32-o32-env.c -include $(c-gettimeofday-y)
 44 CFLAGS_vgettimeofday-n32.o = -include $(src)/c !!  46 CFLAGS_vgettimeofday-n32.o = -include $(srctree)/$(src)/config-n32-o32-env.c -include $(c-gettimeofday-y)
 45 endif                                              47 endif
 46                                                    48 
 47 CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTR !!  49 CFLAGS_REMOVE_vgettimeofday.o = -pg
 48                                                    50 
 49 ifdef CONFIG_MIPS_DISABLE_VDSO                     51 ifdef CONFIG_MIPS_DISABLE_VDSO
                                                   >>  52   ifndef CONFIG_MIPS_LD_CAN_LINK_VDSO
                                                   >>  53     $(warning MIPS VDSO requires binutils >= 2.25)
                                                   >>  54   endif
 50   obj-vdso-y := $(filter-out vgettimeofday.o,      55   obj-vdso-y := $(filter-out vgettimeofday.o, $(obj-vdso-y))
 51 endif                                              56 endif
 52                                                    57 
 53 # VDSO linker flags.                               58 # VDSO linker flags.
 54 ldflags-y := -Bsymbolic --no-undefined -soname     59 ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \
 55         $(filter -E%,$(KBUILD_CFLAGS)) -shared !!  60         $(filter -E%,$(KBUILD_CFLAGS)) -nostdlib -shared \
 56         -G 0 --eh-frame-hdr --hash-style=sysv      61         -G 0 --eh-frame-hdr --hash-style=sysv --build-id=sha1 -T
 57                                                    62 
 58 CFLAGS_REMOVE_vdso.o = $(CC_FLAGS_FTRACE)      !!  63 CFLAGS_REMOVE_vdso.o = -pg
                                                   >>  64 
                                                   >>  65 GCOV_PROFILE := n
                                                   >>  66 UBSAN_SANITIZE := n
                                                   >>  67 KCOV_INSTRUMENT := n
 59                                                    68 
 60 # Check that we don't have PIC 'jalr t9' calls     69 # Check that we don't have PIC 'jalr t9' calls left
 61 quiet_cmd_vdso_mips_check = VDSOCHK $@             70 quiet_cmd_vdso_mips_check = VDSOCHK $@
 62       cmd_vdso_mips_check = if $(OBJDUMP) --di !!  71       cmd_vdso_mips_check = if $(OBJDUMP) --disassemble $@ | egrep -h "jalr.*t9" > /dev/null; \
 63                        then (echo >&2 "$@: PIC     72                        then (echo >&2 "$@: PIC 'jalr t9' calls are not supported"; \
 64                              rm -f $@; /bin/fa     73                              rm -f $@; /bin/false); fi
 65                                                    74 
 66 #                                                  75 #
 67 # Shared build commands.                           76 # Shared build commands.
 68 #                                                  77 #
 69                                                    78 
 70 quiet_cmd_vdsold_and_vdso_check = LD      $@       79 quiet_cmd_vdsold_and_vdso_check = LD      $@
 71       cmd_vdsold_and_vdso_check = $(cmd_ld); $     80       cmd_vdsold_and_vdso_check = $(cmd_ld); $(cmd_vdso_check); $(cmd_vdso_mips_check)
 72                                                    81 
 73 quiet_cmd_vdsoas_o_S = AS      $@                  82 quiet_cmd_vdsoas_o_S = AS      $@
 74       cmd_vdsoas_o_S = $(CC) $(a_flags) -c -o      83       cmd_vdsoas_o_S = $(CC) $(a_flags) -c -o $@ $<
 75                                                    84 
 76 # Strip rule for the raw .so files                 85 # Strip rule for the raw .so files
 77 $(obj)/%.so.raw: OBJCOPYFLAGS := -S                86 $(obj)/%.so.raw: OBJCOPYFLAGS := -S
 78 $(obj)/%.so.raw: $(obj)/%.so.dbg.raw FORCE         87 $(obj)/%.so.raw: $(obj)/%.so.dbg.raw FORCE
 79         $(call if_changed,objcopy)                 88         $(call if_changed,objcopy)
 80                                                    89 
 81 hostprogs := genvdso                               90 hostprogs := genvdso
 82                                                    91 
 83 quiet_cmd_genvdso = GENVDSO $@                     92 quiet_cmd_genvdso = GENVDSO $@
 84 define cmd_genvdso                                 93 define cmd_genvdso
 85         $(foreach file,$(filter %.raw,$^),cp $     94         $(foreach file,$(filter %.raw,$^),cp $(file) $(file:%.raw=%) &&) \
 86         $(obj)/genvdso $(<:%.raw=%) $(<:%.dbg.     95         $(obj)/genvdso $(<:%.raw=%) $(<:%.dbg.raw=%) $@ $(VDSO_NAME)
 87 endef                                              96 endef
 88                                                    97 
 89 #                                                  98 #
 90 # Build native VDSO.                               99 # Build native VDSO.
 91 #                                                 100 #
 92                                                   101 
 93 native-abi := $(filter -mabi=%,$(KBUILD_CFLAGS    102 native-abi := $(filter -mabi=%,$(KBUILD_CFLAGS))
 94                                                   103 
 95 targets += $(obj-vdso-y)                          104 targets += $(obj-vdso-y)
 96 targets += vdso.lds                               105 targets += vdso.lds
 97 targets += vdso.so.dbg.raw vdso.so.raw            106 targets += vdso.so.dbg.raw vdso.so.raw
 98 targets += vdso.so.dbg vdso.so                    107 targets += vdso.so.dbg vdso.so
 99 targets += vdso-image.c                           108 targets += vdso-image.c
100                                                   109 
101 obj-vdso := $(obj-vdso-y:%.o=$(obj)/%.o)          110 obj-vdso := $(obj-vdso-y:%.o=$(obj)/%.o)
102                                                   111 
103 $(obj-vdso): KBUILD_CFLAGS := $(cflags-vdso) $    112 $(obj-vdso): KBUILD_CFLAGS := $(cflags-vdso) $(native-abi)
104 $(obj-vdso): KBUILD_AFLAGS := $(aflags-vdso) $    113 $(obj-vdso): KBUILD_AFLAGS := $(aflags-vdso) $(native-abi)
105                                                   114 
106 $(obj)/vdso.lds: KBUILD_CPPFLAGS := $(ccflags-    115 $(obj)/vdso.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) $(native-abi)
107                                                   116 
108 $(obj)/vdso.so.dbg.raw: $(obj)/vdso.lds $(obj-    117 $(obj)/vdso.so.dbg.raw: $(obj)/vdso.lds $(obj-vdso) FORCE
109         $(call if_changed,vdsold_and_vdso_chec    118         $(call if_changed,vdsold_and_vdso_check)
110                                                   119 
111 $(obj)/vdso-image.c: $(obj)/vdso.so.dbg.raw $(    120 $(obj)/vdso-image.c: $(obj)/vdso.so.dbg.raw $(obj)/vdso.so.raw \
112                      $(obj)/genvdso FORCE         121                      $(obj)/genvdso FORCE
113         $(call if_changed,genvdso)                122         $(call if_changed,genvdso)
114                                                   123 
115 obj-y += vdso-image.o                             124 obj-y += vdso-image.o
116                                                   125 
117 #                                                 126 #
118 # Build O32 VDSO.                                 127 # Build O32 VDSO.
119 #                                                 128 #
120                                                   129 
121 # Define these outside the ifdef to ensure the    130 # Define these outside the ifdef to ensure they are picked up by clean.
122 targets += $(obj-vdso-y:%.o=%-o32.o)              131 targets += $(obj-vdso-y:%.o=%-o32.o)
123 targets += vdso-o32.lds                           132 targets += vdso-o32.lds
124 targets += vdso-o32.so.dbg.raw vdso-o32.so.raw    133 targets += vdso-o32.so.dbg.raw vdso-o32.so.raw
125 targets += vdso-o32.so.dbg vdso-o32.so            134 targets += vdso-o32.so.dbg vdso-o32.so
126 targets += vdso-o32-image.c                       135 targets += vdso-o32-image.c
127                                                   136 
128 ifdef CONFIG_MIPS32_O32                           137 ifdef CONFIG_MIPS32_O32
129                                                   138 
130 obj-vdso-o32 := $(obj-vdso-y:%.o=$(obj)/%-o32.    139 obj-vdso-o32 := $(obj-vdso-y:%.o=$(obj)/%-o32.o)
131                                                   140 
132 $(obj-vdso-o32): KBUILD_CFLAGS := $(cflags-vds    141 $(obj-vdso-o32): KBUILD_CFLAGS := $(cflags-vdso) -mabi=32
133 $(obj-vdso-o32): KBUILD_AFLAGS := $(aflags-vds    142 $(obj-vdso-o32): KBUILD_AFLAGS := $(aflags-vdso) -mabi=32
134                                                   143 
135 $(obj)/%-o32.o: $(src)/%.S FORCE                  144 $(obj)/%-o32.o: $(src)/%.S FORCE
136         $(call if_changed_dep,vdsoas_o_S)         145         $(call if_changed_dep,vdsoas_o_S)
137                                                   146 
138 $(obj)/%-o32.o: $(src)/%.c FORCE                  147 $(obj)/%-o32.o: $(src)/%.c FORCE
139         $(call cmd,force_checksrc)                148         $(call cmd,force_checksrc)
140         $(call if_changed_rule,cc_o_c)            149         $(call if_changed_rule,cc_o_c)
141                                                   150 
142 $(obj)/vdso-o32.lds: KBUILD_CPPFLAGS := $(ccfl    151 $(obj)/vdso-o32.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) -mabi=32
143 $(obj)/vdso-o32.lds: $(src)/vdso.lds.S FORCE      152 $(obj)/vdso-o32.lds: $(src)/vdso.lds.S FORCE
144         $(call if_changed_dep,cpp_lds_S)          153         $(call if_changed_dep,cpp_lds_S)
145                                                   154 
146 $(obj)/vdso-o32.so.dbg.raw: $(obj)/vdso-o32.ld    155 $(obj)/vdso-o32.so.dbg.raw: $(obj)/vdso-o32.lds $(obj-vdso-o32) FORCE
147         $(call if_changed,vdsold_and_vdso_chec    156         $(call if_changed,vdsold_and_vdso_check)
148                                                   157 
149 $(obj)/vdso-o32-image.c: VDSO_NAME := o32         158 $(obj)/vdso-o32-image.c: VDSO_NAME := o32
150 $(obj)/vdso-o32-image.c: $(obj)/vdso-o32.so.db    159 $(obj)/vdso-o32-image.c: $(obj)/vdso-o32.so.dbg.raw $(obj)/vdso-o32.so.raw \
151                          $(obj)/genvdso FORCE     160                          $(obj)/genvdso FORCE
152         $(call if_changed,genvdso)                161         $(call if_changed,genvdso)
153                                                   162 
154 obj-y += vdso-o32-image.o                         163 obj-y += vdso-o32-image.o
155                                                   164 
156 endif                                             165 endif
157                                                   166 
158 #                                                 167 #
159 # Build N32 VDSO.                                 168 # Build N32 VDSO.
160 #                                                 169 #
161                                                   170 
162 targets += $(obj-vdso-y:%.o=%-n32.o)              171 targets += $(obj-vdso-y:%.o=%-n32.o)
163 targets += vdso-n32.lds                           172 targets += vdso-n32.lds
164 targets += vdso-n32.so.dbg.raw vdso-n32.so.raw    173 targets += vdso-n32.so.dbg.raw vdso-n32.so.raw
165 targets += vdso-n32.so.dbg vdso-n32.so            174 targets += vdso-n32.so.dbg vdso-n32.so
166 targets += vdso-n32-image.c                       175 targets += vdso-n32-image.c
167                                                   176 
168 ifdef CONFIG_MIPS32_N32                           177 ifdef CONFIG_MIPS32_N32
169                                                   178 
170 obj-vdso-n32 := $(obj-vdso-y:%.o=$(obj)/%-n32.    179 obj-vdso-n32 := $(obj-vdso-y:%.o=$(obj)/%-n32.o)
171                                                   180 
172 $(obj-vdso-n32): KBUILD_CFLAGS := $(cflags-vds    181 $(obj-vdso-n32): KBUILD_CFLAGS := $(cflags-vdso) -mabi=n32
173 $(obj-vdso-n32): KBUILD_AFLAGS := $(aflags-vds    182 $(obj-vdso-n32): KBUILD_AFLAGS := $(aflags-vdso) -mabi=n32
174                                                   183 
175 $(obj)/%-n32.o: $(src)/%.S FORCE                  184 $(obj)/%-n32.o: $(src)/%.S FORCE
176         $(call if_changed_dep,vdsoas_o_S)         185         $(call if_changed_dep,vdsoas_o_S)
177                                                   186 
178 $(obj)/%-n32.o: $(src)/%.c FORCE                  187 $(obj)/%-n32.o: $(src)/%.c FORCE
179         $(call cmd,force_checksrc)                188         $(call cmd,force_checksrc)
180         $(call if_changed_rule,cc_o_c)            189         $(call if_changed_rule,cc_o_c)
181                                                   190 
182 $(obj)/vdso-n32.lds: KBUILD_CPPFLAGS := $(ccfl    191 $(obj)/vdso-n32.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) -mabi=n32
183 $(obj)/vdso-n32.lds: $(src)/vdso.lds.S FORCE      192 $(obj)/vdso-n32.lds: $(src)/vdso.lds.S FORCE
184         $(call if_changed_dep,cpp_lds_S)          193         $(call if_changed_dep,cpp_lds_S)
185                                                   194 
186 $(obj)/vdso-n32.so.dbg.raw: $(obj)/vdso-n32.ld    195 $(obj)/vdso-n32.so.dbg.raw: $(obj)/vdso-n32.lds $(obj-vdso-n32) FORCE
187         $(call if_changed,vdsold_and_vdso_chec    196         $(call if_changed,vdsold_and_vdso_check)
188                                                   197 
189 $(obj)/vdso-n32-image.c: VDSO_NAME := n32         198 $(obj)/vdso-n32-image.c: VDSO_NAME := n32
190 $(obj)/vdso-n32-image.c: $(obj)/vdso-n32.so.db    199 $(obj)/vdso-n32-image.c: $(obj)/vdso-n32.so.dbg.raw $(obj)/vdso-n32.so.raw \
191                          $(obj)/genvdso FORCE     200                          $(obj)/genvdso FORCE
192         $(call if_changed,genvdso)                201         $(call if_changed,genvdso)
193                                                   202 
194 obj-y += vdso-n32-image.o                         203 obj-y += vdso-n32-image.o
195                                                   204 
196 endif                                             205 endif
197                                                   206 
198 # FIXME: Need install rule for debug.             207 # FIXME: Need install rule for debug.
199 # Needs to deal with dependency for generation    208 # Needs to deal with dependency for generation of dbg by cmd_genvdso...
                                                      

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