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| author | Kohei Tokunaga <ktokunaga.mail@gmail.com> | 2025-04-28 15:39:05 +0900 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-05-06 16:02:04 +0200 |
| commit | 8e72b0eb1842ac9813228ad9d9c29203f3823d99 (patch) | |
| tree | 04a1d4faa7a058ef94b884d798b1a19af57fc3bc /rust/qemu-api-macros/src | |
| parent | 1a8964424036cdfe1bd11180953d4e95123990f5 (diff) | |
| download | qemu-8e72b0eb1842ac9813228ad9d9c29203f3823d99.zip qemu-8e72b0eb1842ac9813228ad9d9c29203f3823d99.tar.gz qemu-8e72b0eb1842ac9813228ad9d9c29203f3823d99.tar.bz2 | |
util: exclude mmap-alloc.c from compilation target on Emscripten
Emscripten does not support partial unmapping of mmapped memory
regions[1]. This limitation prevents correct implementation of qemu_ram_mmap
and qemu_ram_munmap, which rely on partial unmap behavior.
As a workaround, this commit excludes mmap-alloc.c from the Emscripten
build. Instead, for Emscripten build, this modifies qemu_anon_ram_alloc to
use qemu_memalign in place of qemu_ram_mmap, and disable memory backends
that rely on mmap, such as memory-backend-file and memory-backend-shm.
[1] https://github.com/emscripten-core/emscripten/blob/d4a74336f23214bf3304d9eb0d03966786b30a36/system/lib/libc/emscripten_mmap.c#L61
Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
Link: https://lore.kernel.org/r/76834f933ee4f14eeb5289d21c59d306886e58e9.1745820062.git.ktokunaga.mail@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'rust/qemu-api-macros/src')
0 files changed, 0 insertions, 0 deletions