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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Dmitry Golovin <dima@golovin.in>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Masahiro Yamada <masahiroy@kernel.org>
Subject: [PATCH 4.19 30/37] x86/boot: kbuild: allow readelf executable to be specified
Date: Fri, 25 Sep 2020 14:48:58 +0200	[thread overview]
Message-ID: <20200925124725.495192875@linuxfoundation.org> (raw)
In-Reply-To: <20200925124720.972208530@linuxfoundation.org>

From: Dmitry Golovin <dima@golovin.in>

commit eefb8c124fd969e9a174ff2bedff86aa305a7438 upstream.

Introduce a new READELF variable to top-level Makefile, so the name of
readelf binary can be specified.

Before this change the name of the binary was hardcoded to
"$(CROSS_COMPILE)readelf" which might not be present for every
toolchain.

This allows to build with LLVM Object Reader by using make parameter
READELF=llvm-readelf.

Link: https://github.com/ClangBuiltLinux/linux/issues/771
Signed-off-by: Dmitry Golovin <dima@golovin.in>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
[nd: conflict in exported vars list from not backporting commit
 e83b9f55448a ("kbuild: add ability to generate BTF type info for vmlinux")]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile                          |    3 ++-
 arch/x86/boot/compressed/Makefile |    2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/Makefile
+++ b/Makefile
@@ -378,6 +378,7 @@ STRIP		= $(CROSS_COMPILE)strip
 OBJCOPY		= $(CROSS_COMPILE)objcopy
 OBJDUMP		= $(CROSS_COMPILE)objdump
 OBJSIZE		= $(CROSS_COMPILE)size
+READELF		= $(CROSS_COMPILE)readelf
 LEX		= flex
 YACC		= bison
 AWK		= awk
@@ -434,7 +435,7 @@ GCC_PLUGINS_CFLAGS :=
 CLANG_FLAGS :=
 
 export ARCH SRCARCH CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
+export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
 export MAKE LEX YACC AWK GENKSYMS INSTALLKERNEL PERL PYTHON PYTHON2 PYTHON3 UTS_MACHINE
 export HOSTCXX KBUILD_HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -102,7 +102,7 @@ vmlinux-objs-$(CONFIG_EFI_MIXED) += $(ob
 quiet_cmd_check_data_rel = DATAREL $@
 define cmd_check_data_rel
 	for obj in $(filter %.o,$^); do \
-		${CROSS_COMPILE}readelf -S $$obj | grep -qF .rel.local && { \
+		$(READELF) -S $$obj | grep -qF .rel.local && { \
 			echo "error: $$obj has data relocations!" >&2; \
 			exit 1; \
 		} || true; \



  parent reply	other threads:[~2020-09-25 12:55 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-25 12:48 [PATCH 4.19 00/37] 4.19.148-rc1 review Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 01/37] af_key: pfkey_dump needs parameter validation Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 02/37] KVM: fix memory leak in kvm_io_bus_unregister_dev() Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 03/37] kprobes: fix kill kprobe which has been marked as gone Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 04/37] mm/thp: fix __split_huge_pmd_locked() for migration PMD Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 05/37] cxgb4: Fix offset when clearing filter byte counters Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 06/37] geneve: add transport ports in route lookup for geneve Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 07/37] hdlc_ppp: add range checks in ppp_cp_parse_cr() Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 08/37] ip: fix tos reflection in ack and reset packets Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 09/37] ipv6: avoid lockdep issue in fib6_del() Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 10/37] net: DCB: Validate DCB_ATTR_DCB_BUFFER argument Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 11/37] net: dsa: rtl8366: Properly clear member config Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 12/37] net: ipv6: fix kconfig dependency warning for IPV6_SEG6_HMAC Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 13/37] net: sch_generic: aviod concurrent reset and enqueue op for lockless qdisc Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 14/37] nfp: use correct define to return NONE fec Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 15/37] tipc: Fix memory leak in tipc_group_create_member() Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 16/37] tipc: fix shutdown() of connection oriented socket Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 17/37] tipc: use skb_unshare() instead in tipc_buf_append() Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 18/37] bnxt_en: return proper error codes in bnxt_show_temp Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 19/37] bnxt_en: Protect bnxt_set_eee() and bnxt_set_pauseparam() with mutex Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 20/37] net: phy: Avoid NPD upon phy_detach() when driver is unbound Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 21/37] net: qrtr: check skb_put_padto() return value Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 22/37] net: add __must_check to skb_put_padto() Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 23/37] ipv4: Update exception handling for multipath routes via same device Greg Kroah-Hartman
2020-09-25 16:51   ` Pavel Machek
2020-09-26 15:46     ` Greg Kroah-Hartman
2020-09-29 12:26       ` Pavel Machek
2020-09-25 12:48 ` [PATCH 4.19 24/37] MAINTAINERS: add CLANG/LLVM BUILD SUPPORT info Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 25/37] kbuild: add OBJSIZE variable for the size tool Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 26/37] Documentation/llvm: add documentation on building w/ Clang/LLVM Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 27/37] Documentation/llvm: fix the name of llvm-size Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 28/37] net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware Greg Kroah-Hartman
2020-09-25 12:48 ` [PATCH 4.19 29/37] net: wan: wanxl: use $(M68KCC) instead of $(M68KAS) " Greg Kroah-Hartman
2020-09-25 12:48 ` Greg Kroah-Hartman [this message]
2020-09-25 12:48 ` [PATCH 4.19 31/37] kbuild: remove AS variable Greg Kroah-Hartman
2020-09-25 12:49 ` [PATCH 4.19 32/37] kbuild: replace AS=clang with LLVM_IAS=1 Greg Kroah-Hartman
2020-09-25 12:49 ` [PATCH 4.19 33/37] kbuild: support LLVM=1 to switch the default tools to Clang/LLVM Greg Kroah-Hartman
2020-09-25 12:49 ` [PATCH 4.19 34/37] mm: memcg: fix memcg reclaim soft lockup Greg Kroah-Hartman
2020-09-25 12:49 ` [PATCH 4.19 35/37] tcp_bbr: refactor bbr_target_cwnd() for general inflight provisioning Greg Kroah-Hartman
2020-09-25 12:49 ` [PATCH 4.19 36/37] tcp_bbr: adapt cwnd based on ack aggregation estimation Greg Kroah-Hartman
2020-09-25 12:49 ` [PATCH 4.19 37/37] serial: 8250: Avoid error message on reprobe Greg Kroah-Hartman
2020-09-25 17:39 ` [PATCH 4.19 00/37] 4.19.148-rc1 review Pavel Machek
2020-09-26 15:50   ` Greg Kroah-Hartman
2020-09-25 18:01 ` Jon Hunter
2020-09-25 20:02 ` Shuah Khan
2020-09-26 12:35 ` Naresh Kamboju
2020-09-26 15:42 ` Guenter Roeck

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