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bug#47429: Re 47429:allocating JIT code buffer failed: Permission denied
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From: |
Jeffrey Walton |
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Subject: |
bug#47429: Re 47429:allocating JIT code buffer failed: Permission denied |
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Date: |
Fri, 26 Mar 2021 21:29:07 -0400 |
This looks like the Apple article of interest:
https://developer.apple.com/documentation/apple-silicon/porting-just-in-time-compilers-to-apple-silicon.
According to the article, the page should be mapped with MAP_JIT.
Before instructions are written, pthread_jit_write_protect_np should
be called. After writing the jitted code, call
pthread_jit_write_protect_np again and call sys_icache_invalidate.
It looks like the OpenJDK folks are also experiencing similar issues.
Jeff