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riscv: put interrupt entries into .irqentry.text

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commit 87615e95f6 upstream.

The interrupt entries are expected to be in the .irqentry.text section.
For example, for kprobes to work properly, exception code cannot be
probed; this is ensured by blacklisting addresses in the .irqentry.text
section.

Fixes: 7db91e57a0 ("RISC-V: Task implementation")
Signed-off-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/20230821145708.21270-1-namcaov@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nam Cao 2023-08-21 16:57:09 +02:00 committed by Greg Kroah-Hartman
parent 7aa18f77e1
commit a08b414d1e
1 changed files with 2 additions and 0 deletions
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2
arch/riscv/kernel/entry.S
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@ -16,6 +16,8 @@
#include <asm/errata_list.h>
#include <linux/sizes.h>
.section .irqentry.text, "ax"
SYM_CODE_START(handle_exception)
/*
* If coming from userspace, preserve the user thread pointer and load