summaryrefslogtreecommitdiffstats
path: root/arch/riscv/include/uapi/asm/ptrace.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/riscv/include/uapi/asm/ptrace.h')
-rw-r--r--arch/riscv/include/uapi/asm/ptrace.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/riscv/include/uapi/asm/ptrace.h b/arch/riscv/include/uapi/asm/ptrace.h
index 882547f6bd5c..e17c550986a6 100644
--- a/arch/riscv/include/uapi/asm/ptrace.h
+++ b/arch/riscv/include/uapi/asm/ptrace.h
@@ -71,12 +71,51 @@ struct __riscv_q_ext_state {
__u32 reserved[3];
};
+struct __riscv_ctx_hdr {
+ __u32 magic;
+ __u32 size;
+};
+
+struct __riscv_extra_ext_header {
+ __u32 __padding[129] __attribute__((aligned(16)));
+ /*
+ * Reserved for expansion of sigcontext structure. Currently zeroed
+ * upon signal, and must be zero upon sigreturn.
+ */
+ __u32 reserved;
+ struct __riscv_ctx_hdr hdr;
+};
+
union __riscv_fp_state {
struct __riscv_f_ext_state f;
struct __riscv_d_ext_state d;
struct __riscv_q_ext_state q;
};
+struct __riscv_v_ext_state {
+ unsigned long vstart;
+ unsigned long vl;
+ unsigned long vtype;
+ unsigned long vcsr;
+ void *datap;
+ /*
+ * In signal handler, datap will be set a correct user stack offset
+ * and vector registers will be copied to the address of datap
+ * pointer.
+ *
+ * In ptrace syscall, datap will be set to zero and the vector
+ * registers will be copied to the address right after this
+ * structure.
+ */
+};
+
+/*
+ * According to spec: The number of bits in a single vector register,
+ * VLEN >= ELEN, which must be a power of 2, and must be no greater than
+ * 2^16 = 65536bits = 8192bytes
+ */
+#define RISCV_MAX_VLENB (8192)
+
#endif /* __ASSEMBLY__ */
#endif /* _UAPI_ASM_RISCV_PTRACE_H */