fix risc64 conflict with kernel headers

Rename user registers struct definitions to avoid conflict with the
asm/ptrace.h kernel header that defines the same structs. Use the
__riscv_mc prefix as glibc does.

diff --git a/arch/riscv64/bits/signal.h b/arch/riscv64/bits/signal.h
index 4c94a8f02edc189fcd90924eb83700a13eab11c5..76d7ad80c8cdbc57294ae51c4b4b59e7bc0e7d58 100644 (file)
--- a/arch/riscv64/bits/signal.h
+++ b/arch/riscv64/bits/signal.h
@@ -12,29 +12,29 @@
 typedef unsigned long greg_t;
 typedef unsigned long gregset_t[32];
 
-struct __riscv_f_ext_state {
+struct __riscv_mc_f_ext_state {
        unsigned int f[32];
        unsigned int fcsr;
 };
 
-struct __riscv_d_ext_state {
+struct __riscv_mc_d_ext_state {
        unsigned long long f[32];
        unsigned int fcsr;
 };
 
-struct __riscv_q_ext_state {
+struct __riscv_mc_q_ext_state {
        unsigned long long f[64] __attribute__((aligned(16)));
        unsigned int fcsr;
        unsigned int reserved[3];
 };
 
-union __riscv_fp_state {
-       struct __riscv_f_ext_state f;
-       struct __riscv_d_ext_state d;
-       struct __riscv_q_ext_state q;
+union __riscv_mc_fp_state {
+       struct __riscv_mc_f_ext_state f;
+       struct __riscv_mc_d_ext_state d;
+       struct __riscv_mc_q_ext_state q;
 };
 
-typedef union __riscv_fp_state fpregset_t;
+typedef union __riscv_mc_fp_state fpregset_t;
 
 typedef struct sigcontext {
        gregset_t gregs;