mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 18:05:37 +00:00
semihosting: Inline set_swi_errno into common_semi_cb
Do not store 'err' into errno only to read it back immediately. Use 'ret' for the return value, not 'reg0'. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
parent
1c6ff7205b
commit
5aadd18299
|
@ -290,28 +290,29 @@ static target_ulong common_semi_syscall_len;
|
|||
|
||||
static void common_semi_cb(CPUState *cs, target_ulong ret, target_ulong err)
|
||||
{
|
||||
target_ulong reg0 = common_semi_arg(cs, 0);
|
||||
|
||||
if (ret == (target_ulong)-1) {
|
||||
errno = err;
|
||||
set_swi_errno(cs, -1);
|
||||
reg0 = ret;
|
||||
#ifdef CONFIG_USER_ONLY
|
||||
TaskState *ts = cs->opaque;
|
||||
ts->swi_errno = err;
|
||||
#else
|
||||
syscall_err = err;
|
||||
#endif
|
||||
} else {
|
||||
/* Fixup syscalls that use nonstardard return conventions. */
|
||||
target_ulong reg0 = common_semi_arg(cs, 0);
|
||||
switch (reg0) {
|
||||
case TARGET_SYS_WRITE:
|
||||
case TARGET_SYS_READ:
|
||||
reg0 = common_semi_syscall_len - ret;
|
||||
ret = common_semi_syscall_len - ret;
|
||||
break;
|
||||
case TARGET_SYS_SEEK:
|
||||
reg0 = 0;
|
||||
ret = 0;
|
||||
break;
|
||||
default:
|
||||
reg0 = ret;
|
||||
break;
|
||||
}
|
||||
}
|
||||
common_semi_set_ret(cs, reg0);
|
||||
common_semi_set_ret(cs, ret);
|
||||
}
|
||||
|
||||
static target_ulong common_semi_flen_buf(CPUState *cs)
|
||||
|
|
Loading…
Reference in a new issue