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acb70e0682
This update also removes the --audio-backend command line switch in favor of an actual setting in the browser that can be changed at chrome://flags/#audio-backend Security: https://vuxml.freebsd.org/freebsd/15d398ea-4f73-11ef-8a0f-a8a1599412c6.html
36 lines
1 KiB
C++
36 lines
1 KiB
C++
--- v8/src/flags/flags.cc.orig 2024-07-30 11:12:21 UTC
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+++ v8/src/flags/flags.cc
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@@ -15,6 +15,10 @@
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#include <set>
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#include <sstream>
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+#if V8_OS_OPENBSD
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+#include <sys/mman.h>
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+#endif
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+
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#include "src/base/functional.h"
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#include "src/base/lazy-instance.h"
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#include "src/base/platform/platform.h"
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@@ -34,7 +38,11 @@
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namespace v8::internal {
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// Define {v8_flags}, declared in flags.h.
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+#if V8_OS_OPENBSD
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+FlagValues v8_flags __attribute__((section(".openbsd.mutable")));
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+#else
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FlagValues v8_flags;
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+#endif
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// {v8_flags} needs to be aligned to a memory page, and the size needs to be a
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// multiple of a page size. This is required for memory-protection of the memory
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@@ -806,6 +814,10 @@ void FlagList::FreezeFlags() {
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// Note that for string flags we only protect the pointer itself, but not the
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// string storage. TODO(12887): Fix this.
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base::OS::SetDataReadOnly(&v8_flags, sizeof(v8_flags));
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+#if V8_OS_OPENBSD
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+ if (mimmutable(&v8_flags, sizeof(v8_flags)) == -1)
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+ FATAL("unable to set immutability of v8_flags");
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+#endif
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}
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// static
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