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gdbstub: Convert GDB error numbers to host error numbers

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Provide the callback with consistent state -- always use
host error numbers.  The individual callback can then
decide if the errno requires conversion for the guest.

Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-06-07 12:38:26 -07:00
parent 9814483d63
commit c805e11875
1 changed files with 31 additions and 0 deletions
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31
gdbstub.c
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@ -1886,6 +1886,37 @@ static void handle_file_io(GArray *params, void *user_ctx)
} else { } else {
err = 0; err = 0;
} }
/* Convert GDB error numbers back to host error numbers. */
#define E(X) case GDB_E##X: err = E##X; break
switch (err) {
case 0:
break;
E(PERM);
E(NOENT);
E(INTR);
E(BADF);
E(ACCES);
E(FAULT);
E(BUSY);
E(EXIST);
E(NODEV);
E(NOTDIR);
E(ISDIR);
E(INVAL);
E(NFILE);
E(MFILE);
E(FBIG);
E(NOSPC);
E(SPIPE);
E(ROFS);
E(NAMETOOLONG);
default:
err = EINVAL;
break;
}
#undef E
gdbserver_state.current_syscall_cb(gdbserver_state.c_cpu, ret, err); gdbserver_state.current_syscall_cb(gdbserver_state.c_cpu, ret, err);
gdbserver_state.current_syscall_cb = NULL; gdbserver_state.current_syscall_cb = NULL;
} }