diff options
Diffstat (limited to 'usr/klibc/arch/riscv64/syscall.S')
| -rw-r--r-- | usr/klibc/arch/riscv64/syscall.S | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/usr/klibc/arch/riscv64/syscall.S b/usr/klibc/arch/riscv64/syscall.S new file mode 100644 index 0000000..89d9bd2 --- /dev/null +++ b/usr/klibc/arch/riscv64/syscall.S @@ -0,0 +1,13 @@ +#include <machine/asm.h> +#include <asm/unistd.h> + +ENTRY(__syscall_common) + scall + li t0, -4096 + bleu a0, t0, 1f + neg a0, a0 + lui t0, %hi(errno) + sw a0, %lo(errno)(t0) + li a0, -1 +1: jr ra +END(__syscall_common) |