hw/riscv: Add signature dump function for spike to run ACT tests

Add signature and signature-granularity properties in spike to specify the target
signatrue file and the line size for signature data.

Recgonize the signature section between begin_signature and end_signature symbols
when loading elf of ACT tests. Then dump signature data in signature section just
before the ACT tests exit.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230405095720.75848-2-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/hw/char/riscv_htif.h b/include/hw/char/riscv_htif.h
index 5958c5b986..df493fdf6b 100644
--- a/include/hw/char/riscv_htif.h
+++ b/include/hw/char/riscv_htif.h
@@ -40,6 +40,9 @@ typedef struct HTIFState {
     uint64_t pending_read;
 } HTIFState;
 
+extern const char *sig_file;
+extern uint8_t line_size;
+
 /* HTIF symbol callback */
 void htif_symbol_callback(const char *st_name, int st_info, uint64_t st_value,
     uint64_t st_size);