55baec0f4c
We build with _FILE_OFFSET_BITS=64, so off_t = off64_t = uint64_t. With an extra cast, this fixes emulation of mmap2, which could overflow the computation of the full value of offset. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-14-richard.henderson@linaro.org>
36 lines
1.5 KiB
C
36 lines
1.5 KiB
C
/*
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* user-mmap.h: prototypes for linux-user guest binary loader
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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 2 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 <http://www.gnu.org/licenses/>.
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*/
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#ifndef LINUX_USER_USER_MMAP_H
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#define LINUX_USER_USER_MMAP_H
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int target_mprotect(abi_ulong start, abi_ulong len, int prot);
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abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
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int flags, int fd, off_t offset);
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int target_munmap(abi_ulong start, abi_ulong len);
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abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
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abi_ulong new_size, unsigned long flags,
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abi_ulong new_addr);
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abi_long target_madvise(abi_ulong start, abi_ulong len_in, int advice);
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extern unsigned long last_brk;
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extern abi_ulong mmap_next_start;
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abi_ulong mmap_find_vma(abi_ulong, abi_ulong, abi_ulong);
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void mmap_fork_start(void);
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void mmap_fork_end(int child);
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#endif /* LINUX_USER_USER_MMAP_H */
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