diff options
Diffstat (limited to 'scripts/Makefile.modpost')
-rw-r--r-- | scripts/Makefile.modpost | 77 |
1 files changed, 1 insertions, 76 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 002089141df4..a1cb0222ebe6 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost | |||
@@ -14,8 +14,7 @@ | |||
14 | # 3) create one <module>.mod.c file pr. module | 14 | # 3) create one <module>.mod.c file pr. module |
15 | # 4) create one Module.symvers file with CRC for all exported symbols | 15 | # 4) create one Module.symvers file with CRC for all exported symbols |
16 | # 5) compile all <module>.mod.c files | 16 | # 5) compile all <module>.mod.c files |
17 | # 6) final link of the module to a <module.ko> (or <module.unsigned>) file | 17 | # 6) final link of the module to a <module.ko> file |
18 | # 7) signs the modules to a <module.ko> file | ||
19 | 18 | ||
20 | # Step 3 is used to place certain information in the module's ELF | 19 | # Step 3 is used to place certain information in the module's ELF |
21 | # section, including information such as: | 20 | # section, including information such as: |
@@ -33,8 +32,6 @@ | |||
33 | # Step 4 is solely used to allow module versioning in external modules, | 32 | # Step 4 is solely used to allow module versioning in external modules, |
34 | # where the CRC of each module is retrieved from the Module.symvers file. | 33 | # where the CRC of each module is retrieved from the Module.symvers file. |
35 | 34 | ||
36 | # Step 7 is dependent on CONFIG_MODULE_SIG being enabled. | ||
37 | |||
38 | # KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined | 35 | # KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined |
39 | # symbols in the final module linking stage | 36 | # symbols in the final module linking stage |
40 | # KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules. | 37 | # KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules. |
@@ -119,7 +116,6 @@ $(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE | |||
119 | targets += $(modules:.ko=.mod.o) | 116 | targets += $(modules:.ko=.mod.o) |
120 | 117 | ||
121 | # Step 6), final link of the modules | 118 | # Step 6), final link of the modules |
122 | ifneq ($(CONFIG_MODULE_SIG),y) | ||
123 | quiet_cmd_ld_ko_o = LD [M] $@ | 119 | quiet_cmd_ld_ko_o = LD [M] $@ |
124 | cmd_ld_ko_o = $(LD) -r $(LDFLAGS) \ | 120 | cmd_ld_ko_o = $(LD) -r $(LDFLAGS) \ |
125 | $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \ | 121 | $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \ |
@@ -129,78 +125,7 @@ $(modules): %.ko :%.o %.mod.o FORCE | |||
129 | $(call if_changed,ld_ko_o) | 125 | $(call if_changed,ld_ko_o) |
130 | 126 | ||
131 | targets += $(modules) | 127 | targets += $(modules) |
132 | else | ||
133 | quiet_cmd_ld_ko_unsigned_o = LD [M] $@ | ||
134 | cmd_ld_ko_unsigned_o = \ | ||
135 | $(LD) -r $(LDFLAGS) \ | ||
136 | $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \ | ||
137 | -o $@ $(filter-out FORCE,$^) \ | ||
138 | $(if $(AFTER_LINK),; $(AFTER_LINK)) | ||
139 | |||
140 | $(modules:.ko=.ko.unsigned): %.ko.unsigned :%.o %.mod.o FORCE | ||
141 | $(call if_changed,ld_ko_unsigned_o) | ||
142 | |||
143 | targets += $(modules:.ko=.ko.unsigned) | ||
144 | |||
145 | # Step 7), sign the modules | ||
146 | MODSECKEY = ./signing_key.priv | ||
147 | MODPUBKEY = ./signing_key.x509 | ||
148 | |||
149 | ifeq ($(wildcard $(MODSECKEY))+$(wildcard $(MODPUBKEY)),$(MODSECKEY)+$(MODPUBKEY)) | ||
150 | ifeq ($(KBUILD_SRC),) | ||
151 | # no O= is being used | ||
152 | SCRIPTS_DIR := scripts | ||
153 | else | ||
154 | SCRIPTS_DIR := $(KBUILD_SRC)/scripts | ||
155 | endif | ||
156 | SIGN_MODULES := 1 | ||
157 | else | ||
158 | SIGN_MODULES := 0 | ||
159 | endif | ||
160 | |||
161 | # only sign if it's an in-tree module | ||
162 | ifneq ($(KBUILD_EXTMOD),) | ||
163 | SIGN_MODULES := 0 | ||
164 | endif | ||
165 | 128 | ||
166 | # We strip the module as best we can - note that using both strip and eu-strip | ||
167 | # results in a smaller module than using either alone. | ||
168 | EU_STRIP = $(shell which eu-strip || echo true) | ||
169 | |||
170 | quiet_cmd_sign_ko_stripped_ko_unsigned = STRIP [M] $@ | ||
171 | cmd_sign_ko_stripped_ko_unsigned = \ | ||
172 | cp $< $@ && \ | ||
173 | strip -x -g $@ && \ | ||
174 | $(EU_STRIP) $@ | ||
175 | |||
176 | ifeq ($(SIGN_MODULES),1) | ||
177 | |||
178 | quiet_cmd_genkeyid = GENKEYID $@ | ||
179 | cmd_genkeyid = \ | ||
180 | perl $(SCRIPTS_DIR)/x509keyid $< $<.signer $<.keyid | ||
181 | |||
182 | %.signer %.keyid: % | ||
183 | $(call if_changed,genkeyid) | ||
184 | |||
185 | KEYRING_DEP := $(MODSECKEY) $(MODPUBKEY) $(MODPUBKEY).signer $(MODPUBKEY).keyid | ||
186 | quiet_cmd_sign_ko_ko_stripped = SIGN [M] $@ | ||
187 | cmd_sign_ko_ko_stripped = \ | ||
188 | sh $(SCRIPTS_DIR)/sign-file $(MODSECKEY) $(MODPUBKEY) $< $@ | ||
189 | else | ||
190 | KEYRING_DEP := | ||
191 | quiet_cmd_sign_ko_ko_unsigned = NO SIGN [M] $@ | ||
192 | cmd_sign_ko_ko_unsigned = \ | ||
193 | cp $< $@ | ||
194 | endif | ||
195 | |||
196 | $(modules): %.ko :%.ko.stripped $(KEYRING_DEP) FORCE | ||
197 | $(call if_changed,sign_ko_ko_stripped) | ||
198 | |||
199 | $(patsubst %.ko,%.ko.stripped,$(modules)): %.ko.stripped :%.ko.unsigned FORCE | ||
200 | $(call if_changed,sign_ko_stripped_ko_unsigned) | ||
201 | |||
202 | targets += $(modules) | ||
203 | endif | ||
204 | 129 | ||
205 | # Add FORCE to the prequisites of a target to force it to be always rebuilt. | 130 | # Add FORCE to the prequisites of a target to force it to be always rebuilt. |
206 | # --------------------------------------------------------------------------- | 131 | # --------------------------------------------------------------------------- |