From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Khem Raj <raj.khem@gmail.com>,
Nathan Chancellor <nathan@kernel.org>,
Palmer Dabbelt <palmerdabbelt@google.com>,
Sasha Levin <sashal@kernel.org>,
linux-riscv@lists.infradead.org
Subject: [PATCH AUTOSEL 5.10 18/39] riscv: Use -mno-relax when using lld linker
Date: Mon, 7 Jun 2021 12:12:57 -0400 [thread overview]
Message-ID: <20210607161318.3583636-18-sashal@kernel.org> (raw)
In-Reply-To: <20210607161318.3583636-1-sashal@kernel.org>
From: Khem Raj <raj.khem@gmail.com>
[ Upstream commit ec3a5cb61146c91f0f7dcec8b7e7157a4879a9ee ]
lld does not implement the RISCV relaxation optimizations like GNU ld
therefore disable it when building with lld, Also pass it to
assembler when using external GNU assembler ( LLVM_IAS != 1 ), this
ensures that relevant assembler option is also enabled along. if these
options are not used then we see following relocations in objects
0000000000000000 R_RISCV_ALIGN *ABS*+0x0000000000000002
These are then rejected by lld
ld.lld: error: capability.c:(.fixup+0x0): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax but the .o is already compiled with -mno-relax
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/riscv/Makefile | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 0289a97325d1..e241e0e85ac8 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -36,6 +36,15 @@ else
KBUILD_LDFLAGS += -melf32lriscv
endif
+ifeq ($(CONFIG_LD_IS_LLD),y)
+ KBUILD_CFLAGS += -mno-relax
+ KBUILD_AFLAGS += -mno-relax
+ifneq ($(LLVM_IAS),1)
+ KBUILD_CFLAGS += -Wa,-mno-relax
+ KBUILD_AFLAGS += -Wa,-mno-relax
+endif
+endif
+
# ISA string setting
riscv-march-$(CONFIG_ARCH_RV32I) := rv32ima
riscv-march-$(CONFIG_ARCH_RV64I) := rv64ima
--
2.30.2
next prev parent reply other threads:[~2021-06-07 16:17 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-07 16:12 [PATCH AUTOSEL 5.10 01/39] net: ieee802154: fix null deref in parse dev addr Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 02/39] HID: quirks: Set INCREMENT_USAGE_ON_DUPLICATE for Saitek X65 Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 03/39] HID: a4tech: use A4_2WHEEL_MOUSE_HACK_B8 for A4TECH NB-95 Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 04/39] HID: hid-input: add mapping for emoji picker key Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 05/39] HID: hid-sensor-hub: Return error for hid_set_field() failure Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 06/39] HID: quirks: Add quirk for Lenovo optical mouse Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 07/39] HID: multitouch: set Stylus suffix for Stylus-application devices, too Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 08/39] HID: Add BUS_VIRTUAL to hid_connect logging Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 09/39] HID: usbhid: fix info leak in hid_submit_ctrl Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 10/39] drm/tegra: sor: Do not leak runtime PM reference Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 11/39] gpu: host1x: Split up client initalization and registration Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 12/39] drm/tegra: sor: Fully initialize SOR before registration Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 13/39] ARM: OMAP1: Fix use of possibly uninitialized irq variable Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 14/39] ARM: OMAP2+: Fix build warning when mmc_omap is not built Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 15/39] gfs2: Prevent direct-I/O write fallback errors from getting lost Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 16/39] gfs2: fix a deadlock on withdraw-during-mount Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 17/39] HID: gt683r: add missing MODULE_DEVICE_TABLE Sasha Levin
2021-06-07 16:12 ` Sasha Levin [this message]
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 19/39] gfs2: Fix use-after-free in gfs2_glock_shrink_scan Sasha Levin
2021-06-07 16:12 ` [PATCH AUTOSEL 5.10 20/39] Bluetooth: use correct lock to prevent UAF of hdev object Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 21/39] scsi: target: core: Fix warning on realtime kernels Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 22/39] ethernet: myri10ge: Fix missing error code in myri10ge_probe() Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 23/39] scsi: qedf: Do not put host in qedf_vport_create() unconditionally Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 24/39] Bluetooth: Add a new USB ID for RTL8822CE Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 25/39] scsi: scsi_devinfo: Add blacklist entry for HPE OPEN-V Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 26/39] nvme-loop: reset queue count to 1 in nvme_loop_destroy_io_queues() Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 27/39] nvme-loop: clear NVME_LOOP_Q_LIVE when nvme_loop_configure_admin_queue() fails Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 28/39] nvme-loop: check for NVME_LOOP_Q_LIVE in nvme_loop_destroy_admin_queue() Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 29/39] nvme-loop: do not warn for deleted controllers during reset Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 30/39] net: ipconfig: Don't override command-line hostnames or domains Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 31/39] drm/amd/display: Allow bandwidth validation for 0 streams Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 32/39] drm/amdgpu: refine amdgpu_fru_get_product_info Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 33/39] drm/amd/display: Fix overlay validation by considering cursors Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 34/39] drm/amd/display: Fix potential memory leak in DMUB hw_init Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 35/39] drm/amd/amdgpu:save psp ring wptr to avoid attack Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 36/39] rtnetlink: Fix missing error code in rtnl_bridge_notify() Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 37/39] net/x25: Return the correct errno code Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 38/39] net: " Sasha Levin
2021-06-07 16:13 ` [PATCH AUTOSEL 5.10 39/39] fib: " Sasha Levin
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