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arm: add div0 handler for 64-bit division on ARMv7-M

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Even though ARMv7-M has a hardware divider, 64-bit division is
handled in software and needs a div0 handler. The libgcc routines
call __aeabi_{i,l}div0 so we alias those to __div0.

Change-Id: I5152c43d39e25e03f31404753f13978a614aca06
This commit is contained in:
Aidan MacDonald 2025-02-18 16:47:41 +00:00
parent 545506c923
commit 6ea328f0f1
3 changed files with 14 additions and 1 deletions
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2
firmware/export/config.h
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@ -710,7 +710,7 @@ Lyre prototype 1 */
# elif ARM_PROFILE == ARM_PROFILE_CLASSIC
# define CPU_ARM_CLASSIC
# endif
# if !defined(ARM_HAVE_HW_DIV) && (CONFIG_PLATFORM & PLATFORM_NATIVE)
# if (CONFIG_PLATFORM & PLATFORM_NATIVE)
# define ARM_NEED_DIV0
# endif
#endif