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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:message-id:mime-version:subject:from :to:cc; bh=tGcXn3sDm57uE3gVQiqH/xFvLNTI0/uhdj25yBP9OJM=; b=kK372RWrR2Tj3ADwSqhR1J/OzcLNKELKK/ozI7eN/UCUPilZ+mJIHiOqEy45vFnoxG dKmJT6jRcyKw7ownE4iI/O4Z7kSu5AKc65CotBjoUy21j96DhqgfbBi1tM3CEfBD/F58 W0jWp+Pe3mt11TlHJtA10k5fHVPa8xEr4Puk6M3bRO6nmPeHZ1tJgbHNZqrlEQFsM/nO Uzl+dpK7V1VytjXeB1LMt0ZG/fem0aQlguTDeI9cj7E+QriznCFDA5JIEtGegx7MncYs J0bb8U5mNvdl8VcIxfFS0Dlanxze2EFY7Pr4OMre0vLvXRYyVZBtQMB3zIbsaXfYnHtr hP9w== X-Gm-Message-State: AOAM533okX+50z72AQlQSLG9D0J8w6VsN5YVxb9x+I6lBiRA+aMJ7pMh unPKJz5Y7wN4kgitceBvN7J3z3s3 X-Google-Smtp-Source: ABdhPJxUgxwW4VA+vB29eR+veCkKgDowzHp+nyf81WrQ9ev1/t+X3X9+s1UrsuH08x6IBr4JM162UcMNug== X-Received: from fawn.svl.corp.google.com ([2620:15c:2cd:202:7220:84ff:fe0f:9f6a]) (user=morbo job=sendgmr) by 2002:a25:3453:: with SMTP id b80mr10708338yba.237.1600816912562; Tue, 22 Sep 2020 16:21:52 -0700 (PDT) Date: Tue, 22 Sep 2020 16:21:40 -0700 Message-Id: <20200922232140.1994390-1-morbo@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.28.0.681.g6f77f65b4e-goog Subject: [PATCH] kbuild: explicitly specify the build id style From: Bill Wendling To: linux-kbuild@vger.kernel.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200922_192156_954754_A12A0692 X-CRM114-Status: GOOD ( 13.13 ) X-Spam-Score: -7.7 (-------) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-7.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:b4a listed in] [list.dnswl.org] -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM white-list -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_MED DKIMwl.org - Medium trust sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, linux-kselftest@vger.kernel.org, Michal Marek , bpf@vger.kernel.org, Catalin Marinas , linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, Nathan Chancellor , Masahiro Yamada , netdev@vger.kernel.org, Thomas Gleixner , Bill Wendling , Andy Lutomirski , "H . Peter Anvin" , sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Will Deacon , "David S . Miller" , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org ld's --build-id defaults to "sha1" style, while lld defaults to "fast". The build IDs are very different between the two, which may confuse programs that reference them. Signed-off-by: Bill Wendling Acked-by: David S. Miller --- Makefile | 4 ++-- arch/arm/vdso/Makefile | 2 +- arch/arm64/kernel/vdso/Makefile | 2 +- arch/arm64/kernel/vdso32/Makefile | 2 +- arch/mips/vdso/Makefile | 2 +- arch/riscv/kernel/vdso/Makefile | 2 +- arch/s390/kernel/vdso64/Makefile | 2 +- arch/sparc/vdso/Makefile | 2 +- arch/x86/entry/vdso/Makefile | 2 +- tools/testing/selftests/bpf/Makefile | 2 +- 10 files changed, 11 insertions(+), 11 deletions(-) diff --git a/Makefile b/Makefile index 2b66d3398878..7e6f41c9803a 100644 --- a/Makefile +++ b/Makefile @@ -973,8 +973,8 @@ KBUILD_CPPFLAGS += $(KCPPFLAGS) KBUILD_AFLAGS += $(KAFLAGS) KBUILD_CFLAGS += $(KCFLAGS) -KBUILD_LDFLAGS_MODULE += --build-id -LDFLAGS_vmlinux += --build-id +KBUILD_LDFLAGS_MODULE += --build-id=sha1 +LDFLAGS_vmlinux += --build-id=sha1 ifeq ($(CONFIG_STRIP_ASM_SYMS),y) LDFLAGS_vmlinux += $(call ld-option, -X,) diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile index a54f70731d9f..150ce6e6a5d3 100644 --- a/arch/arm/vdso/Makefile +++ b/arch/arm/vdso/Makefile @@ -19,7 +19,7 @@ ccflags-y += -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO32 ldflags-$(CONFIG_CPU_ENDIAN_BE8) := --be8 ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \ -z max-page-size=4096 -nostdlib -shared $(ldflags-y) \ - --hash-style=sysv --build-id \ + --hash-style=sysv --build-id=sha1 \ -T obj-$(CONFIG_VDSO) += vdso.o diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index 45d5cfe46429..871915097f9d 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -24,7 +24,7 @@ btildflags-$(CONFIG_ARM64_BTI_KERNEL) += -z force-bti # routines, as x86 does (see 6f121e548f83 ("x86, vdso: Reimplement vdso.so # preparation in build-time C")). ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \ - -Bsymbolic $(call ld-option, --no-eh-frame-hdr) --build-id -n \ + -Bsymbolic $(call ld-option, --no-eh-frame-hdr) --build-id=sha1 -n \ $(btildflags-y) -T ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18 diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile index d6adb4677c25..4fa4b3fe8efb 100644 --- a/arch/arm64/kernel/vdso32/Makefile +++ b/arch/arm64/kernel/vdso32/Makefile @@ -128,7 +128,7 @@ VDSO_LDFLAGS += -Wl,-Bsymbolic -Wl,--no-undefined -Wl,-soname=linux-vdso.so.1 VDSO_LDFLAGS += -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 VDSO_LDFLAGS += -nostdlib -shared -mfloat-abi=soft VDSO_LDFLAGS += -Wl,--hash-style=sysv -VDSO_LDFLAGS += -Wl,--build-id +VDSO_LDFLAGS += -Wl,--build-id=sha1 VDSO_LDFLAGS += $(call cc32-ldoption,-fuse-ld=bfd) diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index 57fe83235281..5810cc12bc1d 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -61,7 +61,7 @@ endif # VDSO linker flags. ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \ $(filter -E%,$(KBUILD_CFLAGS)) -nostdlib -shared \ - -G 0 --eh-frame-hdr --hash-style=sysv --build-id -T + -G 0 --eh-frame-hdr --hash-style=sysv --build-id=sha1 -T CFLAGS_REMOVE_vdso.o = -pg diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile index 478e7338ddc1..7d6a94d45ec9 100644 --- a/arch/riscv/kernel/vdso/Makefile +++ b/arch/riscv/kernel/vdso/Makefile @@ -49,7 +49,7 @@ $(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso) FORCE # refer to these symbols in the kernel code rather than hand-coded addresses. SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \ - -Wl,--build-id -Wl,--hash-style=both + -Wl,--build-id=sha1 -Wl,--hash-style=both $(obj)/vdso-dummy.o: $(src)/vdso.lds $(obj)/rt_sigreturn.o FORCE $(call if_changed,vdsold) diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile index 4a66a1cb919b..edc473b32e42 100644 --- a/arch/s390/kernel/vdso64/Makefile +++ b/arch/s390/kernel/vdso64/Makefile @@ -19,7 +19,7 @@ KBUILD_AFLAGS_64 += -m64 -s KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS)) KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin ldflags-y := -fPIC -shared -nostdlib -soname=linux-vdso64.so.1 \ - --hash-style=both --build-id -T + --hash-style=both --build-id=sha1 -T $(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_64) $(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_64) diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index f44355e46f31..469dd23887ab 100644 --- a/arch/sparc/vdso/Makefile +++ b/arch/sparc/vdso/Makefile @@ -115,7 +115,7 @@ quiet_cmd_vdso = VDSO $@ -T $(filter %.lds,$^) $(filter %.o,$^) && \ sh $(srctree)/$(src)/checkundef.sh '$(OBJDUMP)' '$@' -VDSO_LDFLAGS = -shared --hash-style=both --build-id -Bsymbolic +VDSO_LDFLAGS = -shared --hash-style=both --build-id=sha1 -Bsymbolic GCOV_PROFILE := n # diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile index 215376d975a2..ebba25ed9a38 100644 --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -176,7 +176,7 @@ quiet_cmd_vdso = VDSO $@ -T $(filter %.lds,$^) $(filter %.o,$^) && \ sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' -VDSO_LDFLAGS = -shared --hash-style=both --build-id \ +VDSO_LDFLAGS = -shared --hash-style=both --build-id=sha1 \ $(call ld-option, --eh-frame-hdr) -Bsymbolic GCOV_PROFILE := n diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index fc946b7ac288..daf186f88a63 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -133,7 +133,7 @@ $(OUTPUT)/%:%.c $(OUTPUT)/urandom_read: urandom_read.c $(call msg,BINARY,,$@) - $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id + $(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id=sha1 $(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ) $(call msg,CC,,$@)