Messages in this thread | | | From | Paul Walmsley <> | Date | Wed, 14 Nov 2018 11:30:45 -0800 (PST) | Subject | Re: [PATCH 2/2] modpost: skip ELF local symbols by default during section mismatch check |
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Hello Masahiro,
On Tue, 13 Nov 2018, Masahiro Yamada wrote:
> Hi Paul, > > On Sat, Oct 20, 2018 at 10:21 PM Paul Walmsley <paul.walmsley@sifive.com> wrote: >> >> During development of a serial console driver with a RISC-V toolchain, >> the following modpost warning appeared: >> >> ---- >> WARNING: vmlinux.o(.data+0x19b10): Section mismatch in reference from the variable .LANCHOR1 to the function .init.text:sifive_serial_console_setup() >> The variable .LANCHOR1 references >> the function __init sifive_serial_console_setup() >> If the reference is valid then annotate the >> variable with __init* or __refdata (see linux/init.h) or name the variable: >> *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console >> ---- > > Could you provide me a little more information to reproduce it? > > I tried your dev/paulw/serial-v4.19-rc7, > but I could not get that warning. > > I used risc64-linux-gcc (GCC 7.3, 8.1) from kernel.org
I observed this issue with gcc 8.2:
riscv64-unknown-linux-gnu-gcc (crosstool-NG 1.23.0.534-710c8) 8.2.0
This toolchain was built with mainline crosstool-NG:
https://github.com/crosstool-ng/crosstool-ng
using the "riscv64-unknown-linux-gnu" sample configuration.
- Paul
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