[libc-commits] [libc] [libc] Lazily initialize freelist malloc using symbols (PR #99254)

[Petr Hosek via libc-commits]

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@@ -22,6 +22,9 @@
 
 namespace LIBC_NAMESPACE_DECL {
 
+extern "C" cpp::byte _end;
+extern "C" cpp::byte __libc_heap_limit;
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petrhosek wrote:

Is `__libc_heap_limit` already used by other C libraries (in other words is this an existing API)? If not, I'd prefer calling it `__llvm_libc_heap_limit` which matches the naming scheme we use for other symbols that are part of the external ABI.

https://github.com/llvm/llvm-project/pull/99254