linux-kernel - [PATCH v2 mips-next 0/4] MIPS: vmlinux.lds.S sections fix & cleanup

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Date:   Wed, 06 Jan 2021 20:07:24 +0000
From:   Alexander Lobakin <alobakin@...me>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Alexander Lobakin <alobakin@...me>,
        Nathan Chancellor <natechancellor@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Fangrui Song <maskray@...gle.com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Alex Smith <alex.smith@...tec.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Markos Chandras <markos.chandras@...tec.com>,
        linux-mips@...r.kernel.org, stable@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 mips-next 0/4] MIPS: vmlinux.lds.S sections fix & cleanup

This series hunts the problems discovered after manual enabling of
ARCH_WANT_LD_ORPHAN_WARN, notably the missing PAGE_ALIGNED_DATA()
section affecting VDSO placement (marked for stable).

Compile and runtime tested on MIPS32R2 CPS board with no issues.

Since v1 [0]:
 - catch .got entries too as LLD may produce it (Nathan);
 - check for unwanted sections to be zero-sized instead of
   discarding (Fangrui).

[0] https://lore.kernel.org/linux-mips/20210104121729.46981-1-alobakin@pm.me

Alexander Lobakin (4):
  MIPS: vmlinux.lds.S: add missing PAGE_ALIGNED_DATA() section
  MIPS: vmlinux.lds.S: add ".gnu.attributes" to DISCARDS
  MIPS: vmlinux.lds.S: catch bad .got, .plt and .rel.dyn at link time
  MIPS: select ARCH_WANT_LD_ORPHAN_WARN

 arch/mips/Kconfig              |  1 +
 arch/mips/kernel/vmlinux.lds.S | 39 +++++++++++++++++++++++++++++++++-
 2 files changed, 39 insertions(+), 1 deletion(-)

-- 
2.30.0