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hw: add missing six-arguments syscall for riscv

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Ref genodelabs/genode#5319
This commit is contained in:
Stefan Kalkowski 2024-08-13 10:56:35 +02:00 committed by Christian Helmuth
parent 025043cdcf
commit e275787119
1 changed files with 18 additions and 0 deletions
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18
repos/base-hw/src/core/spec/riscv/kernel/interface.cc
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@ -49,6 +49,10 @@ using namespace Kernel;
CALL_4_FILL_ARG_REGS \ CALL_4_FILL_ARG_REGS \
register Call_arg arg_4_reg asm("a4") = arg_4; register Call_arg arg_4_reg asm("a4") = arg_4;
#define CALL_6_FILL_ARG_REGS \
CALL_5_FILL_ARG_REGS \
register Call_arg arg_5_reg asm("a5") = arg_5;
extern Genode::addr_t _kernel_entry; extern Genode::addr_t _kernel_entry;
/* /*
@ -75,6 +79,7 @@ extern Genode::addr_t _kernel_entry;
#define CALL_3_SWI CALL_2_SWI, "r" (arg_2_reg) #define CALL_3_SWI CALL_2_SWI, "r" (arg_2_reg)
#define CALL_4_SWI CALL_3_SWI, "r" (arg_3_reg) #define CALL_4_SWI CALL_3_SWI, "r" (arg_3_reg)
#define CALL_5_SWI CALL_4_SWI, "r" (arg_4_reg) #define CALL_5_SWI CALL_4_SWI, "r" (arg_4_reg)
#define CALL_6_SWI CALL_5_SWI, "r" (arg_5_reg)
/****************** /******************
@ -137,3 +142,16 @@ Call_ret Kernel::call(Call_arg arg_0,
asm volatile(CALL_5_SWI : "ra"); asm volatile(CALL_5_SWI : "ra");
return arg_0_reg; return arg_0_reg;
} }
Call_ret Kernel::call(Call_arg arg_0,
Call_arg arg_1,
Call_arg arg_2,
Call_arg arg_3,
Call_arg arg_4,
Call_arg arg_5)
{
CALL_6_FILL_ARG_REGS
asm volatile(CALL_6_SWI : "ra");
return arg_0_reg;
}