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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/linear.h>
#include <nw/linear.h>
#include <nw/interp.h>
#include <nw/mem.h>
#include <nw/log.h>
enum nw_state nwp_linear_load(struct nw_interp *const i,
struct nw_sm_io *const io, const unsigned long offset)
{
const struct nw_interp_cfg *const cfg = &i->cfg;
enum nw_state n;
if (nwp_linear_check(i, offset, io->n))
{
static const char *const exc = "out-of-bounds read access to "
"linear memory";
#ifdef NW_LOG
nwp_log("%s, addr=%#lx, sz=%#lx\n", exc, offset, io->n);
#endif
i->exception = exc;
return NW_FATAL;
}
n = nwp_mem_load(&cfg->linear, io, offset, cfg->user);
if (n == NW_FATAL)
{
static const char *const exc = "failed to load from linear memory";
#ifdef NW_LOG
nwp_log("%s\n", exc);
#endif
i->exception = exc;
}
return n;
}
enum nw_state nw_linear_load(struct nw_inst *const i,
struct nw_sm_io *const io, const unsigned long offset)
{
return nwp_linear_load(&i->interp, io, offset);
}
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