Refer to the RISC-V PSABI specification for details:

- https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md

Cc: Michael Tokarev <m...@tls.msk.ru>
Cc: Laurent Vivier <laur...@vivier.eu>
Cc: Richard Henderson <richard.hender...@linaro.org>
Cc: Alistair Francis <alistair.fran...@wdc.com>
Signed-off-by: Michael Clark <m...@sifive.com>
---
 include/elf.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/elf.h b/include/elf.h
index 934dbbd6b3ae..bd0493f43d19 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -1285,6 +1285,14 @@ typedef struct {
 #define R_IA64_DTPREL64LSB     0xb7    /* @dtprel(sym + add), data8 LSB */
 #define R_IA64_LTOFF_DTPREL22  0xba    /* @ltoff(@dtprel(s+a)), imm22 */
 
+/* RISC-V specific definitions.  */
+#define EF_RISCV_RVC 0x0001
+#define EF_RISCV_FLOAT_ABI_SINGLE 0x0002
+#define EF_RISCV_FLOAT_ABI_DOUBLE 0x0004
+#define EF_RISCV_FLOAT_ABI_QUAD 0x0006
+#define EF_RISCV_RVE 0x0008
+#define EF_RISCV_TSO 0x0010
+
 typedef struct elf32_rel {
   Elf32_Addr   r_offset;
   Elf32_Word   r_info;
-- 
2.7.0


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