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/*
* nanowasm, a tiny WebAssembly/Wasm interpreter
* Copyright (C) 2023-2025 Xavier Del Campo Romero
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
#include <nanowasm/nw.h>
#include <nanowasm/dbg.h>
#include <nw/log.h>
#include <nw/routines.h>
#include <nw/stack.h>
#include <nw/types.h>
static enum nw_state read_param(struct nw_interp *const i)
{
struct nw_dbg *const d = i->args;
struct nw_dbg_sm_param *const p = &d->sm.param;
const struct nw_find_param_out *const out = &p->fp.out;
const enum nw_state n = nwp_stack_read(i, &p->io, out->addr);
if (n)
return n;
i->next = p->inext;
return NW_AGAIN;
}
static enum nw_state done(struct nw_interp *const i)
{
struct nw_dbg *const d = i->args;
struct nw_dbg_sm_param *const p = &d->sm.param;
const struct nw_find_param_out *const po = &p->fp.out;
const enum nw_type t = po->type;
size_t sz;
if (nwp_type_sz(t, &sz))
{
static const char *const exc = "invalid type";
i->exception = exc;
#ifdef NW_LOG
nwp_log("%s: %#x\n", exc, (unsigned)t);
#endif
return -1;
}
else
{
struct nw_sm_io io = {0};
io.buf = &d->v.value;
io.n = sz;
p->io = io;
}
i->next = read_param;
return NW_AGAIN;
}
void nw_dbg_param(struct nw_dbg *const d, const unsigned long index)
{
const struct nw_dbg_sm_param p = {0};
struct nw_dbg_sm_param *const pp = &d->sm.param;
struct nw_interp *const i = &d->cfg.inst->interp;
*pp = p;
pp->inext = i->next;
nwp_find_param(i, &pp->fp, index, done, d);
}
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