diff options
Diffstat (limited to 'tests/common/arch/riscv64')
| -rw-r--r-- | tests/common/arch/riscv64/syscall.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tests/common/arch/riscv64/syscall.h b/tests/common/arch/riscv64/syscall.h new file mode 100644 index 0000000..aafda82 --- /dev/null +++ b/tests/common/arch/riscv64/syscall.h @@ -0,0 +1,50 @@ +#ifndef KMI_TESTS_ARCH_RISCV64_SYSCALL_H +#define KMI_TESTS_ARCH_RISCV64_SYSCALL_H + +#include <kmi/syscalls.h> +#include <kmi/attrs.h> + +static inline struct sys_ret syscall(size_t n, + long arg0, long arg1, long arg2, long arg3, + long arg4, + long arg5) +{ + register long a0 __asm__ ("a0") = arg0; + register long a1 __asm__ ("a1") = arg1; + register long a2 __asm__ ("a2") = arg2; + register long a3 __asm__ ("a3") = arg3; + register long a4 __asm__ ("a4") = arg4; + register long a5 __asm__ ("a5") = arg5; + +#define OUTPUTS "+r" (a0), "=r" (a1), "=r" (a2), "=r" (a3), "=r" (a4), "=r" (a5) + + if (n == 1) + __asm__ volatile ("ecall" : OUTPUTS : "r" (a0)); + + else if (n == 2) + __asm__ volatile ("ecall" : OUTPUTS : "r" (a0), "r" (a1)); + + else if (n == 3) + __asm__ volatile ("ecall" : OUTPUTS : "r" (a0), "r" (a1), + "r" (a2)); + + else if (n == 4) + __asm__ volatile ("ecall" : OUTPUTS + : "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + + else if (n == 5) + __asm__ volatile ("ecall" : OUTPUTS + : "r" (a0), "r" (a1), "r" (a2), "r" (a3), + "r" (a4)); + + else if (n == 6) + __asm__ volatile ("ecall" : OUTPUTS + : "r" (a0), "r" (a1), "r" (a2), "r" (a3), + "r" (a4), "r" (a5)); + +#undef OUTPUTS + + return (struct sys_ret){a0, a1, a2, a3, a4, a5}; +} + +#endif /* KMI_TESTS_ARCH_RISCV64_SYSCALL_H */ |