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).
63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/* Determine the virtual memory area of a given address.
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Copyright (C) 2002-2025 Free Software Foundation, Inc.
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Copyright (C) 2003-2006 Paolo Bonzini <bonzini@gnu.org>
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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 2 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 and Paolo Bonzini. */
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#ifndef _STACKVMA_H
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#define _STACKVMA_H
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#include <stdint.h>
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/* Describes a virtual memory area, with some info about the gap between
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it and the next or previous virtual memory area. */
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struct vma_struct
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{
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uintptr_t start;
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uintptr_t end;
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#if STACK_DIRECTION < 0
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/* Info about the gap between this VMA and the previous one.
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addr must be < vma->start. */
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int (*is_near_this) (uintptr_t addr, struct vma_struct *vma);
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/* Private field, not provided by all sigsegv_get_vma implementations. */
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uintptr_t prev_end;
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#endif
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#if STACK_DIRECTION > 0
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/* Info about the gap between this VMA and the next one.
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addr must be > vma->end - 1. */
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int (*is_near_this) (uintptr_t addr, struct vma_struct *vma);
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/* Private field, not provided by all sigsegv_get_vma implementations. */
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uintptr_t next_start;
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#endif
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};
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/* Determines the virtual memory area to which a given address belongs,
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and returns 0. Returns -1 if it cannot be determined.
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This function is used to determine the stack extent when a fault occurs. */
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extern int sigsegv_get_vma (uintptr_t address, struct vma_struct *vma);
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/* Defined if sigsegv_get_vma actually works (i.e. does not always fail). */
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#if defined __linux__ || defined __ANDROID__ \
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|| defined __FreeBSD_kernel__ || defined __FreeBSD__ || defined __DragonFly__ \
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|| defined __NetBSD__ || defined __OpenBSD__ \
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|| (defined __APPLE__ && defined __MACH__) \
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|| defined _AIX || defined __sgi || defined __sun \
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|| defined __CYGWIN__ || defined __HAIKU__
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# define HAVE_STACKVMA 1
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#endif
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#endif /* _STACKVMA_H */
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