# define SIGSTKSZ 8192
#endif
-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-typedef unsigned long greg_t;
-typedef unsigned long gregset_t[32];
-typedef union __riscv_mc_fp_state fpregset_t;
-#endif
-
typedef unsigned long __riscv_mc_gp_state[32];
struct __riscv_mc_f_ext_state {
union __riscv_mc_fp_state __fpregs;
} mcontext_t;
+#if defined(_GNU_SOURCE)
+#define REG_PC 0
+#define REG_RA 1
+#define REG_SP 2
+#define REG_TP 4
+#define REG_S0 8
+#define REG_A0 10
+#endif
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef unsigned long greg_t;
+typedef unsigned long gregset_t[32];
+typedef union __riscv_mc_fp_state fpregset_t;
+struct sigcontext {
+ gregset_t gregs;
+ fpregset_t fpregs;
+};
+#endif
+
struct sigaltstack {
void *ss_sp;
int ss_flags;