88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
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/*
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* This file is part of Jehanne.
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*
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* Copyright (C) 2016 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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int verbose = 1;
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#define asm_nsec() ({ \
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register long __ret asm ("rax"); \
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__asm__ __volatile__ ( \
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"syscall" \
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: "=r" (__ret) \
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: "0"(19) \
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: "cc", "rcx", "r11", "memory" \
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); \
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__ret; })
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#define asm_mount(/* int */ fd, /* int */ afd, /* char* */ old, /* int */ flag, /* char* */ aname, /* int */ mdev) ({ \
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register long r10 asm("r10") = flag; \
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register long r8 asm("r8") = (uintptr_t)aname; \
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register long r9 asm("r9") = mdev; \
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register int __ret asm ("eax"); \
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__asm__ __volatile__ ( \
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"syscall" \
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: "=r" (__ret) \
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: "0"(16), "D"(fd), "S"(afd), "d"(old), "r"(r10), "r"(r8), "r"(r9) \
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: "cc", "rcx", "r11", "memory" \
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); \
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__ret; })
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/*
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long
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asm_nsec(void)
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{
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register int *p1 asm ("r0");
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register int *p2 asm ("r1");
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register int *result asm ("r0");
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asm ("sysint" : "=r" (result) : "0" (p1), "r" (p2));
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return result ;
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}
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*/
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void
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main(void)
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{
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int ret = 0; // success
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uint64_t start, end;
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char *msg;
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start = asm_nsec();
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sleep(1);
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end = asm_nsec();
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if (end <= start)
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ret = 1;
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if (verbose)
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print("nsec: start %llx, end %llx\n", start, end);
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if(ret){
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msg = smprint("nsec: FAIL: start %llx end %llx",
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start, end);
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print("%s\n", msg);
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exits(msg);
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}
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int fd;
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fd = open("#|", ORDWR);
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asm_mount(fd, -1, "/tmp", MREPL, "", 'M');
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print("PASS\n");
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exits("PASS");
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}
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