On 28.04.23 11:50, Hou Wenlong wrote:
Similar to the alternative patching, use relative reference for original instruction rather than absolute one, which saves 8 bytes for one entry on x86_64. And it could generate R_X86_64_PC32 relocation instead of R_X86_64_64 relocation, which also reduces relocation metadata on relocatable builds. And the alignment could be hard coded to be 4 now. Signed-off-by: Hou Wenlong <houwenlong.hwl@xxxxxxxxxxxx> Cc: Thomas Garnier <thgarnie@xxxxxxxxxxxx> Cc: Lai Jiangshan <jiangshan.ljs@xxxxxxxxxxxx> Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx> I think this patch should be taken even without the series. Juergen
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