elf_corefile.c

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// SPDX-FileCopyrightText: 2021 08A <08A@riseup.net>
// SPDX-FileCopyrightText: 2008-2020 nibble <nibble.ds@gmail.com>
// SPDX-FileCopyrightText: 2008-2020 pancake <pancake@nopcode.org>
// SPDX-FileCopyrightText: 2008-2020 alvaro_fe <alvaro.felipe91@gmail.com>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include "elf.h"
 
ut64 Elf_(rz_bin_elf_get_sp_val)(RZ_NONNULL ELFOBJ *bin) {
    rz_return_val_if_fail(bin, UT64_MAX);
 
    RzBinElfPrStatusLayout *layout = Elf_(rz_bin_elf_get_prstatus_layout)(bin);
    if (!layout) {
        return UT64_MAX;
    }
 
    RzVector *notes;
    rz_bin_elf_foreach_notes_segment(bin, notes) {
        RzBinElfNote *tmp;
        rz_vector_foreach(notes, tmp) {
            if (tmp->type != NT_PRSTATUS) {
                continue;
            }
 
            RzBinElfNotePrStatus *note = &tmp->prstatus;
            if (layout->sp_offset + layout->sp_size / 8 > note->regstate_size) {
                return UT64_MAX;
            }
 
            return rz_read_ble(note->regstate + layout->sp_offset, bin->big_endian, layout->sp_size);
        }
    }
 
    return UT64_MAX;
}