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).
120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/* Test the "verify" module.
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Copyright (C) 2005, 2009-2025 Free Software Foundation, Inc.
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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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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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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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/* Written by Bruno Haible. */
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#include <config.h>
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#include "verify.h"
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#ifndef EXP_FAIL
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# define EXP_FAIL 0
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#endif
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/* ======================= Test verify, verify_expr ======================= */
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int gx;
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enum { A, B, C };
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#if EXP_FAIL == 1
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verify (gx >= 0); /* should give ERROR: non-constant expression */
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#endif
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verify (C == 2); /* should be ok */
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#if EXP_FAIL == 2
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verify (1 + 1 == 3); /* should give ERROR */
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#endif
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verify (1 == 1); verify (1 == 1); /* should be ok */
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enum
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{
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item = verify_expr (1 == 1, 10 * 0 + 17) /* should be ok */
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};
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static int
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function (int n)
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{
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#if EXP_FAIL == 3
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verify (n >= 0); /* should give ERROR: non-constant expression */
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#endif
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verify (C == 2); /* should be ok */
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#if EXP_FAIL == 4
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verify (1 + 1 == 3); /* should give ERROR */
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#endif
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verify (1 == 1); verify (1 == 1); /* should be ok */
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if (n)
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return ((void) verify_expr (1 == 1, 1), verify_expr (1 == 1, 8)); /* should be ok */
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#if EXP_FAIL == 5
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return verify_expr (1 == 2, 5); /* should give ERROR */
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#endif
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return 0;
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}
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/* ============================== Test assume ============================== */
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static int
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f (int a)
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{
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return a;
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}
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typedef struct { unsigned int context : 4; unsigned int halt : 1; } state;
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void test_assume_expressions (state *s);
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int test_assume_optimization (int x);
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_Noreturn void test_assume_noreturn (void);
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void
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test_assume_expressions (state *s)
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{
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/* Check that 'assume' accepts a function call, even of a non-const
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function. */
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assume (f (1));
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/* Check that 'assume' accepts a bit-field expression. */
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assume (s->halt);
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}
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int
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test_assume_optimization (int x)
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{
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/* Check that the compiler uses 'assume' for optimization.
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This function, when compiled with optimization, should have code
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equivalent to
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return x + 3;
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Use 'objdump --disassemble test-verify.o' to verify this. */
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assume (x >= 4);
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return (x > 1 ? x + 3 : 2 * x + 10);
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}
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_Noreturn void
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test_assume_noreturn (void)
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{
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/* Check that the compiler's data-flow analysis recognizes 'assume (0)'.
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This function should not elicit a warning. */
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assume (0);
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}
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/* ============================== Main ===================================== */
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int
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main (void)
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{
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state s = { 0, 1 };
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test_assume_expressions (&s);
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test_assume_optimization (5);
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return !(function (0) == 0 && function (1) == 8);
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}
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