69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/*
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* This file is part of Jehanne.
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*
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* Copyright (C) 2015-2017 Giacomo Tesio <giacomo@tesio.it>
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*
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* Jehanne 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, version 2 of the License.
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*
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* Jehanne 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 Jehanne. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <u.h>
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#include <libc.h>
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void*
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jehanne_segattach(int attr, const char *class, void *va, unsigned long len)
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{
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int fd;
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long tmp;
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char msg[256];
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fd = sys_open("#0/segments", OWRITE);
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if(fd < 0)
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return (void*)-1;
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tmp = jehanne_snprint(msg, sizeof(msg), "attach 0x%ux %#p %ulld %s", attr, va, len, class);
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tmp = jehanne_write(fd, msg, tmp);
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sys_close(fd);
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return (void*)tmp;
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}
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int
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jehanne_segdetach(void *addr)
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{
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int fd, tmp;
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char msg[256];
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fd = sys_open("#0/segments", OWRITE);
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if(fd < 0)
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return -1;
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tmp = jehanne_snprint(msg, sizeof(msg), "detach %#p", addr);
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tmp = jehanne_write(fd, msg, tmp);
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sys_close(fd);
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return tmp;
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}
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int
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jehanne_segfree(void *addr, unsigned long len)
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{
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int fd, tmp;
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char msg[256];
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fd = sys_open("#0/segments", OWRITE);
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if(fd < 0)
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return -1;
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tmp = jehanne_snprint(msg, sizeof(msg), "free %#p %ulld", addr, len);
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tmp = jehanne_write(fd, msg, tmp);
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sys_close(fd);
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return tmp;
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}
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