Revision 3af72a4d linux-user/mmap.c
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#include <unistd.h> |
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#include <errno.h> |
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#include <sys/mman.h> |
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#include <linux/mman.h> |
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#include <linux/unistd.h> |
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#include "qemu.h" |
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#include "qemu-common.h" |
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mmap_lock(); |
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#if defined(MREMAP_FIXED) |
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if (flags & MREMAP_FIXED) |
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host_addr = mremap(g2h(old_addr), old_size, new_size, |
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flags, new_addr); |
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host_addr = (void *) syscall(__NR_mremap, g2h(old_addr), |
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old_size, new_size, |
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flags, |
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new_addr); |
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else if (flags & MREMAP_MAYMOVE) {
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abi_ulong mmap_start; |
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|
| ... | ... | |
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errno = ENOMEM; |
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host_addr = MAP_FAILED; |
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} else |
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host_addr = mremap(g2h(old_addr), old_size, new_size,
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flags | MREMAP_FIXED, g2h(mmap_start));
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} else
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#endif
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{
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host_addr = (void *) syscall(__NR_mremap, g2h(old_addr),
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old_size, new_size,
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flags | MREMAP_FIXED,
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g2h(mmap_start));
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} else {
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host_addr = mremap(g2h(old_addr), old_size, new_size, flags); |
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/* Check if address fits target address space */ |
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if ((unsigned long)host_addr + new_size > (abi_ulong)-1) {
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