On Tue, 27 Oct 2020 at 17:00, Ard Biesheuvel [off-list ref] wrote:

On Tue, 27 Oct 2020 at 11:20, Geert Uytterhoeven [off-list ref] wrote:

quoted

Hi Jean-Philippe,

On Tue, Oct 27, 2020 at 11:09 AM Jean-Philippe Brucker
[off-list ref] wrote:

quoted

On Mon, Oct 26, 2020 at 06:38:46PM +0100, Ard Biesheuvel wrote:

quoted

quoted

quoted

quoted

Note that even on plain be2881824ae9eb92, I get:

    aarch64-linux-gnu-ld: Unexpected GOT/PLT entries detected!
    aarch64-linux-gnu-ld: Unexpected run-time procedure linkages detected!

The parent commit obviously doesn't show that (but probably still has
the problem).

Reverting both
b3e5d80d0c48c0cc ("arm64/build: Warn on orphan section placement")
be2881824ae9eb92 ("arm64/build: Assert for unwanted sections")
seems to solve my problems, without any ill effects?

I cannot reproduce the issue here with my distro GCC+binutils (Debian 8.3.0)

I have the same problem with one of my debug configs and Linux v5.10-rc1,
and can reproduce with the Debian 8.3.0 toolchain, by using the arm64
defconfig and disabling CONFIG_MODULES:

ld -EL -maarch64elf --no-undefined -X -z norelro -shared -Bsymbolic -z notext --no-apply-dynamic-relocs --fix-cortex-a53-843419 --orphan-handling=warn --build-id=sha1 --strip-debug -o .tmp_vmlinux.kallsyms1 -T ./arch/arm64/kernel/vmlinux.lds --whole-archive arch/arm64/kernel/head.o init/built-in.a usr/built-in.a arch/arm64/built-in.a kernel/built-in.a certs/built-in.a mm/built-in.a fs/built-in.a ipc/built-in.a security/built-in.a crypto/built-in.a block/built-in.a arch/arm64/lib/built-in.a lib/built-in.a drivers/built-in.a sound/built-in.a net/built-in.a virt/built-in.a --no-whole-archive --start-group arch/arm64/lib/lib.a lib/lib.a ./drivers/firmware/efi/libstub/lib.a --end-group
ld: Unexpected GOT/PLT entries detected!
ld: Unexpected run-time procedure linkages detected!

 ld: Unexpected GOT/PLT entries detected!
 ld: Unexpected run-time procedure linkages detected!

The arm64 build error fixed by (I have tested defconfig)

[PATCH] soc: qcom: QCOM_RPMH fix build with modular QCOM_RPMH
https://lore.kernel.org/linux-arm-msm/20201027111422.4008114-1-anders.roxell@linaro.org/ (local)
---

When building allmodconfig leading to the following link error with
CONFIG_QCOM_RPMH=y and CONFIG_QCOM_COMMAND_DB=m:

aarch64-linux-gnu-ld: drivers/clk/qcom/clk-rpmh.o: in function `clk_rpmh_probe':
  drivers/clk/qcom/clk-rpmh.c:474: undefined reference to `cmd_db_read_addr'
  drivers/clk/qcom/clk-rpmh.c:474:(.text+0x254): relocation truncated
to fit: R_AARCH64_CALL26 against undefined symbol `cmd_db_read_addr'

Fix this by adding a Kconfig depenency and forcing QCOM_RPMH to be a
module when QCOM_COMMAND_DB is a module. Also removing the dependency on
'ARCH_QCOM || COMPILE_TEST' since that is already a dependency for
QCOM_COMMAND_DB.

Fixes: 778279f4f5e4 ("soc: qcom: cmd-db: allow loading as a module")
Signed-off-by: Anders Roxell <redacted>
---
 drivers/soc/qcom/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
index 9b4ae9c16ba7..3bdd1604f78f 100644
--- a/drivers/soc/qcom/Kconfig
+++ b/drivers/soc/qcom/Kconfig

@@ -109,7 +109,7 @@ config QCOM_RMTFS_MEM

 config QCOM_RPMH
  tristate "Qualcomm RPM-Hardened (RPMH) Communication"
- depends on ARCH_QCOM || COMPILE_TEST
+ depends on QCOM_COMMAND_DB
  help
   Support for communication with the hardened-RPM blocks in
   Qualcomm Technologies Inc (QTI) SoCs. RPMH communication uses an

-- 
2.28.0


- Naresh

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