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https://github.com/reactos/syzkaller.git
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9fe4bdc5f1
Make as much code as possible shared between all OSes. In particular main is now common across all OSes. Make more code shared between executor and csource (in particular, loop function and threaded execution logic). Also make loop and threaded logic shared across all OSes. Make more posix/unix code shared across OSes (e.g. signal handling, pthread creation, etc). Plus other changes along similar lines. Also support test OS in executor (based on portable posix) and add 4 arches that cover all execution modes (fork server/no fork server, shmem/no shmem). This change paves way for testing of executor code and allows to preserve consistency across OSes and executor/csource.
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
// Copyright 2017 syzkaller project authors. All rights reserved.
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// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
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#include <errno.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <zircon/syscalls.h>
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#include "nocover.h"
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static void os_init(int argc, char** argv, void* data, size_t data_size)
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{
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if (syz_mmap((size_t)data, data_size) != ZX_OK)
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fail("mmap of data segment failed");
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}
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static long execute_syscall(const call_t* c, long a[kMaxArgs])
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{
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long res = c->call(a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7], a[8]);
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if (strncmp(c->name, "zx_", 3) == 0) {
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// Convert zircon error convention to the libc convention that executor expects.
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if (res == ZX_OK ||
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!strcmp(c->name, "zx_log_read") ||
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!strcmp(c->name, "zx_clock_get") ||
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!strcmp(c->name, "zx_ticks_get"))
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return 0;
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errno = (-res) & 0x7f;
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return -1;
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}
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// We cast libc functions to signature returning long,
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// as the result int -1 is returned as 0x00000000ffffffff rather than full -1.
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if (res == 0xffffffff)
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res = (long)-1;
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return res;
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}
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