micropython / micropython / 10936

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<a href="https://github.com/micropython/micropython/commit/<a class=hub.com/micropython/micropython/commit/<a class="double-link" href="https://git"><a class=hub.com/micropython/micropython/commit/fd49fcb229b6694d69d8f7646c7940e40b67a0cb">fd49fcb22<a href="https://github.com/micropython/micropython/commit/fd49fcb229b6694d69d8f7646c7940e40b67a0cb">&lt;a href=&quot;https://github.com/micropython/micropython/commit/fd49fcb229b6694d69d8f7646c7940e40b67a0cb&quot;&gt;&amp;quot;&amp;gt;stm32/gccollect: Always use MP_STATE_THREAD(stack_top) to get stack top.

In a non-thread build, using &amp;amp;_ram_end as the top-of-stack is no longer
correct because the stack is not always at the very top end of RAM.  See
eg &lt;/a&gt;&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/micropython/micropython/commit/&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/micropython/micropython/commit/04c7cdb668cc7ee391ef5fe000f825389197f7e2">04c7cdb66</a>">04c7cdb66</a><a href="https://github.com/micropython/micropython/commit/fd49fcb229b6694d69d8f7646c7940e40b67a0cb"> and
</a><a class="double-link" href="https://github.com/micropython/micropython/commit/<a class="double-link" href="https://github.com/micropython/micropython/commit/378659209778a1bde24e9b15793087023b02bbd9">378659209</a>">378659209</a><a href="https://github.com/micropython/micropython/commit/fd49fcb229b6694d69d8f7646c7940e40b67a0cb">.  The correct value to use is
&_estack, which is the value stored in MP_STATE_THREAD(stack_top), and
using the same code for both thread and non-thread builds makes the code
cleaner.

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