RFR: 8331731: ubsan: relocInfo.cpp:155:30: runtime error: applying non-zero offset 18446744073709551614 to null pointer [v2]

[Vladimir Kozlov]

On Thu, 30 May 2024 14:31:28 GMT, Axel Boldt-Christmas <aboldtch at openjdk.org> wrote:

> The miss here seems to be that `has_loc` does not mean "This CodeSection has relocatations". But means "This CodeSection has allocated a relocations buffer". I believe the correct check would be `cs->locs_count() == 0`

This suggestion seems correct because we may allocate relocation buffer in section which does not have relocations [codeBuffer.cpp#L169](https://github.com/openjdk/jdk/blob/master/src/hotspot/share/asm/codeBuffer.cpp#L169).

But this is different issue for different RFE.

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PR Comment: https://git.openjdk.org/jdk/pull/19424#issuecomment-2140538618