From: Clement Leger <clement@xxxxxxxxxxxxxxxx> Upon syscall, return to caller via 'rfe' (return from exception) without any modification or handling. Signed-off-by: Clement Leger <clement@xxxxxxxxxxxxxxxx> Signed-off-by: Julian Vetter <jvetter@xxxxxxxxxxxxx> Reviewed-by: Yann Sionneau <ysionneau@xxxxxxxxxxxxx> Reviewed-by: Jonathan Borne <jborne@xxxxxxxxxxxxx> --- arch/kvx/cpu/exception.S | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/kvx/cpu/exception.S b/arch/kvx/cpu/exception.S index 0017e8ea12..a00e2f93b8 100644 --- a/arch/kvx/cpu/exception.S +++ b/arch/kvx/cpu/exception.S @@ -21,4 +21,15 @@ ENDPROC(kvx_ ## __type ## _early_handler) exception_stub(debug) exception_stub(trap) exception_stub(interrupt) -exception_stub(syscall) + +/** + * The only time this handle syscalls is when debug routines are not present + * (which can happen when booted without JTAG). For instance the "magic + * console" uses a syscall catched by the debug routine and if not handled + * barebox will crash. + */ +.section .exception.syscall, "ax", @progbits +ENTRY(kvx_syscall_handler): + rfe + ;; +ENDPROC(kvx_syscall_handler) -- 2.34.1
