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Allocate code gen buffer properly on FreeBSD 

Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5331 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2008-09-27 15:32:41 +00:00
parent a876e28951
commit 06e67a82da
1 changed files with 22 additions and 0 deletions
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22
exec.c
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@ -443,6 +443,28 @@ static void code_gen_alloc(unsigned long tb_size)
exit(1);
}
}
#elif defined(__FreeBSD__)
{
int flags;
void *addr = NULL;
flags = MAP_PRIVATE | MAP_ANONYMOUS;
#if defined(__x86_64__)
/* FreeBSD doesn't have MAP_32BIT, use MAP_FIXED and assume
* 0x40000000 is free */
flags |= MAP_FIXED;
addr = (void *)0x40000000;
/* Cannot map more than that */
if (code_gen_buffer_size > (800 * 1024 * 1024))
code_gen_buffer_size = (800 * 1024 * 1024);
#endif
code_gen_buffer = mmap(addr, code_gen_buffer_size,
PROT_WRITE | PROT_READ | PROT_EXEC,
flags, -1, 0);
if (code_gen_buffer == MAP_FAILED) {
fprintf(stderr, "Could not allocate dynamic translator buffer\n");
exit(1);
}
}
#else
code_gen_buffer = qemu_malloc(code_gen_buffer_size);
if (!code_gen_buffer) {