[PATCH v2] riscv: put interrupt entries into .irqentry.text

Nam Cao
2023-08-21T14:58:11Z

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: 7db91e57a0ac ("RISC-V: Task implementation")
Signed-off-by: Nam Cao <namcaov@gmail.com>
---
v2: add fix tag

arch/riscv/kernel/entry.S | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index 143a2bb3e697..d7dd9030df3f 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -14,6 +14,8 @@
#include <asm/asm-offsets.h>
#include <asm/errata_list.h>

+ .section .irqentry.text, "ax"
+
SYM_CODE_START(handle_exception)
/*
* If coming from userspace, preserve the user thread pointer and load
--
2.34.1