Only read exception flag in gdb register read/write. (#85)

The flag is 32 bits, and if we read 64/128 bits then we get fragments of S1 too and can accidentally send an error. Fixes #84.
9 years ago · f38dcde0d8
1 changed files with 2 additions and 2 deletions
--- a/riscv/gdbserver.cc
+++ b/riscv/gdbserver.cc
@ -648,7 +648,7 @@ class register_read_op_t : public operation_t

        case 1:
          {
-            unsigned result = gs.dr_read(SLOT_DATA_LAST);
+            unsigned result = gs.dr_read32(DEBUG_RAM_SIZE / 4 - 1);
            if (result) {
              gs.send_packet("E03");
              return true;
@ -728,7 +728,7 @@ class register_write_op_t : public operation_t

        case 1:
          {
-            unsigned result = gs.dr_read(SLOT_DATA_LAST);
+            unsigned result = gs.dr_read32(DEBUG_RAM_SIZE / 4 - 1);
            if (result) {
              gs.send_packet("E03");
              return true;