[PATCH v5 2/7] hexagon: add syscall_set_return_value()

Dmitry V. Levin
2025-02-10T11:34:48Z

hexagon is the only architecture that provides HAVE_ARCH_TRACEHOOK but
doesn't define syscall_set_return_value(). Since this function is going
to be needed on all HAVE_ARCH_TRACEHOOK architectures to implement
PTRACE_SET_SYSCALL_INFO API, add it on hexagon, too.

Signed-off-by: Dmitry V. Levin <ldv@strace.io>
---
arch/hexagon/include/asm/syscall.h | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h
index f6e454f18038..951ca0ed8376 100644
--- a/arch/hexagon/include/asm/syscall.h
+++ b/arch/hexagon/include/asm/syscall.h
@@ -45,6 +45,13 @@ static inline long syscall_get_return_value(struct task_struct *task,
return regs->r00;
}

+static inline void syscall_set_return_value(struct task_struct *task,
+ struct pt_regs *regs,
+ int error, long val)
+{
+ regs->r00 = (long) error ?: val;
+}
+
static inline int syscall_get_arch(struct task_struct *task)
{
return AUDIT_ARCH_HEXAGON;
--
ldv