vasilito
068a1ca63e
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
P1 timeout/default-resolution, P2 live preload guard (subsumed by
panic fixes + cap), P3 live image safe read, P4 large ISO boot,
redox.patch — to be applied in dedicated rebase session.
firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).
fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.
fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/*
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* Copyright (C) 2008-2025 Free Software Foundation, Inc.
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* Written by Eric Blake and Bruno Haible
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <string.h>
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#include "signature.h"
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SIGNATURE_CHECK (rawmemchr, void *, (void const *, int));
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#include <stdlib.h>
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#include "zerosize-ptr.h"
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#include "macros.h"
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int
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main (void)
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{
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size_t n = 0x100000;
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char *input = malloc (n + 1);
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ASSERT (input);
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input[0] = 'a';
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input[1] = 'b';
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memset (input + 2, 'c', 1024);
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memset (input + 1026, 'd', n - 1028);
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input[n - 2] = 'e';
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input[n - 1] = 'a';
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input[n] = '\0';
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/* Basic behavior tests. */
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ASSERT (rawmemchr (input, 'a') == input);
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ASSERT (rawmemchr (input, 'b') == input + 1);
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ASSERT (rawmemchr (input, 'c') == input + 2);
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ASSERT (rawmemchr (input, 'd') == input + 1026);
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ASSERT (rawmemchr (input + 1, 'a') == input + n - 1);
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ASSERT (rawmemchr (input + 1, 'e') == input + n - 2);
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ASSERT (rawmemchr (input + 1, 0x789abc00 | 'e') == input + n - 2);
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ASSERT (rawmemchr (input, '\0') == input + n);
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/* Alignment tests. */
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{
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int i, j;
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for (i = 0; i < 32; i++)
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{
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for (j = 0; j < 256; j++)
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input[i + j] = j;
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for (j = 0; j < 256; j++)
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{
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ASSERT (rawmemchr (input + i, j) == input + i + j);
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}
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}
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}
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/* Ensure that no unaligned oversized reads occur. */
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{
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char *page_boundary = (char *) zerosize_ptr ();
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size_t i;
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if (!page_boundary)
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page_boundary = input + 4096;
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memset (page_boundary - 512, '1', 511);
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page_boundary[-1] = '2';
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for (i = 1; i <= 512; i++)
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ASSERT (rawmemchr (page_boundary - i, (i * 0x01010100) | '2')
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== page_boundary - 1);
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}
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free (input);
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/* Test aligned oversized reads, which are allowed on most architectures
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but not on CHERI. */
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{
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input = malloc (5);
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memcpy (input, "abcde", 5);
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ASSERT (rawmemchr (input, 'e') == input + 4);
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ASSERT (rawmemchr (input + 1, 'e') == input + 4);
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ASSERT (rawmemchr (input + 2, 'e') == input + 4);
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ASSERT (rawmemchr (input + 3, 'e') == input + 4);
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ASSERT (rawmemchr (input + 4, 'e') == input + 4);
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free (input);
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}
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return test_exit_status;
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}
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