risu_i386: remove old unused code

The code being removed is a remnant of the past implementation; it has
since been replaced by its more powerful, architecture-independent
counterpart in reginfo.c.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Jan Bobek <jan.bobek@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 0 insertions, 58 deletions

diff --git a/risu_i386.c b/risu_i386.c
index 06d95e5..9962b8f 100644
--- a/risu_i386.c
+++ b/risu_i386.c
@@ -16,13 +16,6 @@
 #include "risu.h"
 #include "risu_reginfo_i386.h"
 
-struct reginfo master_ri, apprentice_ri;
-
-static int insn_is_ud2(uint32_t insn)
-{
-    return ((insn & 0xffff) == 0x0b0f);
-}
-
 void advance_pc(void *vuc)
 {
     ucontext_t *uc = (ucontext_t *) vuc;
@@ -57,54 +50,3 @@ uintptr_t get_pc(struct reginfo *ri)
 {
     return ri->gregs[REG_E(IP)];
 }
-
-int send_register_info(int sock, void *uc)
-{
-    struct reginfo ri;
-    fill_reginfo(&ri, uc);
-    return send_data_pkt(sock, &ri, sizeof(ri));
-}
-
-/* Read register info from the socket and compare it with that from the
- * ucontext. Return 0 for match, 1 for end-of-test, 2 for mismatch.
- * NB: called from a signal handler.
- */
-int recv_and_compare_register_info(int sock, void *uc)
-{
-    int resp;
-    fill_reginfo(&master_ri, uc);
-    recv_data_pkt(sock, &apprentice_ri, sizeof(apprentice_ri));
-    if (memcmp(&master_ri, &apprentice_ri, sizeof(master_ri)) != 0) {
-        /* mismatch */
-        resp = 2;
-    } else if (insn_is_ud2(master_ri.faulting_insn)) {
-        /* end of test */
-        resp = 1;
-    } else {
-        /* either successful match or expected undef */
-        resp = 0;
-    }
-    send_response_byte(sock, resp);
-    return resp;
-}
-
-/* Print a useful report on the status of the last comparison
- * done in recv_and_compare_register_info(). This is called on
- * exit, so need not restrict itself to signal-safe functions.
- * Should return 0 if it was a good match (ie end of test)
- * and 1 for a mismatch.
- */
-int report_match_status(void)
-{
-    fprintf(stderr, "match status...\n");
-    fprintf(stderr, "master reginfo:\n");
-    dump_reginfo(&master_ri);
-    fprintf(stderr, "apprentice reginfo:\n");
-    dump_reginfo(&apprentice_ri);
-    if (memcmp(&master_ri, &apprentice_ri, sizeof(master_ri)) == 0) {
-        fprintf(stderr, "match!\n");
-        return 0;
-    }
-    fprintf(stderr, "mismatch!\n");
-    return 1;
-}