• Matthew Dempsky's avatar
    runtime, syscall: use FP instead of SP for parameters · 9828b7c4
    Matthew Dempsky authored
    Consistently access function parameters using the FP pseudo-register
    instead of SP (e.g., x+0(FP) instead of x+4(SP) or x+8(SP), depending
    on register size). Two reasons: 1) doc/asm says the SP pseudo-register
    should use negative offsets in the range [-framesize, 0), and 2)
    cmd/vet only validates parameter offsets when indexed from the FP
    pseudo-register.
    
    No binary changes to the compiled object files for any of the affected
    package/OS/arch combinations.
    
    Change-Id: I0efc6079bc7519fcea588c114ec6a39b245d68b0
    Reviewed-on: https://go-review.googlesource.com/30085Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
    9828b7c4
asm_plan9_amd64.s 2.87 KB