diff options
Diffstat (limited to 'arm-semi.c')
| -rw-r--r-- | arm-semi.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arm-semi.c b/arm-semi.c index d5fb9a55a7..423aaf7b59 100644 --- a/arm-semi.c +++ b/arm-semi.c @@ -165,8 +165,14 @@ static void arm_semi_flen_cb(CPUState *env, target_ulong ret, target_ulong err) #endif } -#define ARG(n) tget32(args + (n) * 4) -#define SET_ARG(n, val) tput32(args + (n) * 4,val) +#define ARG(n) \ +({ \ + target_ulong __arg; \ + /* FIXME - handle get_user() failure */ \ + get_user_ual(__arg, args + (n) * 4); \ + __arg; \ +}) +#define SET_ARG(n, val) put_user_ual(val, args + (n) * 4) uint32_t do_arm_semihosting(CPUState *env) { target_ulong args; @@ -213,7 +219,11 @@ uint32_t do_arm_semihosting(CPUState *env) } case SYS_WRITEC: { - char c = tget8(args); + char c; + + if (get_user_u8(c, args)) + /* FIXME - should this error code be -TARGET_EFAULT ? */ + return (uint32_t)-1; /* Write to debug console. stderr is near enough. */ if (use_gdb_syscalls()) { gdb_do_syscall(arm_semi_cb, "write,2,%x,1", args); |