lib: newlib: Add workaround for #38258 #38261
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For the Xtensa platforms (e.g. qemu_xtensa), the first `malloc` call may fail if the newlib heap base address is such that the first `sbrk` call returns a 4096-byte aligned address. Here we add a workaround for Xtensa that allocates and immediately frees a 16-byte memory block during initialisation so that all subsequent `malloc` calls succeed. This commit needs to be reverted once the issue zephyrproject-rtos#38258 is fixed. Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
stephanosio
added
area: newlib
stephanosio
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andyross,
carlescufi,
cvinayak,
dcpleung,
galak and
cfriedt
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cfriedt
approved these changes
Sep 2, 2021
galak
approved these changes
Sep 2, 2021
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Fixes #38234.
Workaround for #38258.