Add ability to use custom alloc::heap::imp #19534
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Adds the ability to use a custom allocator heap by passing either --cfg external_crate and --extern external=<allocator_crate_name> or --cfg external_funcs and defining the allocator functions prefixed by 'rust_' somewhere. This is useful for many reasons including OS/embedded development, and allocator development and testing.
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This API will likely be in flux for a long time, but I guess that's not a big deal. |
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Adds the ability to use a custom allocator heap by passing either --cfg
external_crate and --extern external=<allocator_crate_name> or --cfg
external_funcs and defining the allocator functions prefixed by 'rust_'
somewhere.
This is useful for many applications including OS/embedded development,
and allocator development and testing.