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parent cb323d4738b7ac081a1d383b91af3c011ea09011
author bors[bot] <26634292+bors[bot]@users.noreply.github.com> 1602089040 +0000
committer GitHub <noreply@github.com> 1602089040 +0000
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Merge #242

242: Add the .sdata section to the app binary. r=hudson-ayers a=jrvanwhy

RISC-V has the `.sdata` section, which is supposed to be for commonly-accessed global variables. Previously, we discarded this section in the linker script. Discarding this section resulted in missing global variables.

I originally discovered this when I tried to print a string of less than 9 bytes and it was not working. I reported it as a kernel bug at https://github.com/tock/tock/issues/2132, then later realized the issue was in the libtock-rs linker script rather than the kernel.

I added a test to libtock_test that catches this issue (I verified by hand that the test fails if I don't fix the linker script).

Co-authored-by: Johnathan Van Why <jrvanwhy@google.com>