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semihosting: Split out semihost_sys_close

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Split out the non-ARM specific portions of SYS_CLOSE to a
reusable function.  This handles all GuestFD.

Note that gdb_do_syscall %x reads target_ulong, not int.

Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-28 09:22:18 -07:00
parent 5b3f39cb04
commit 5eadbbfca6
4 changed files with 57 additions and 41 deletions
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7
semihosting/guestfd.c
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@ -49,6 +49,11 @@ int alloc_guestfd(void)
return i;
}
static void do_dealloc_guestfd(GuestFD *gf)
{
gf->type = GuestFDUnused;
}
/*
* Look up the guestfd in the data structure; return NULL
* for out of bounds, but don't check whether the slot is unused.
@ -119,5 +124,5 @@ void dealloc_guestfd(int guestfd)
GuestFD *gf = do_get_guestfd(guestfd);
assert(gf);
gf->type = GuestFDUnused;
do_dealloc_guestfd(gf);
}