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| author | Russ Cox <rsc@golang.org> | 2014-08-14 15:29:37 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2014-08-14 15:29:37 -0400 |
| commit | ed68c7df5529fce8d244584b064b8fae473525c4 (patch) | |
| tree | cb6f056e392c2d912ad6f13f3a3300b5c36589a1 /test/nosplit.go | |
| parent | 6edd1c6d1a0443086734221887b3b0a38b182281 (diff) | |
| download | go-ed68c7df5529fce8d244584b064b8fae473525c4.tar.gz go-ed68c7df5529fce8d244584b064b8fae473525c4.zip | |
[dev.power64] cmd/ld, runtime: detect, fix nosplit overflows
LGTM=minux
R=minux
CC=golang-codereviews
https://golang.org/cl/121690043
Diffstat (limited to 'test/nosplit.go')
| -rw-r--r-- | test/nosplit.go | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/test/nosplit.go b/test/nosplit.go index de279efdd4..b5399ad38d 100644 --- a/test/nosplit.go +++ b/test/nosplit.go @@ -126,8 +126,9 @@ main 136 nosplit; REJECT # Calling a nosplit function from a nosplit function requires # having room for the saved caller PC and the called frame. # Because ARM doesn't save LR in the leaf, it gets an extra 4 bytes. +# Because Power64 doesn't save LR in the leaf, it gets an extra 8 bytes. main 112 nosplit call f; f 0 nosplit -main 116 nosplit call f; f 0 nosplit; REJECT amd64 +main 116 nosplit call f; f 0 nosplit main 120 nosplit call f; f 0 nosplit; REJECT amd64 main 124 nosplit call f; f 0 nosplit; REJECT amd64 386 main 128 nosplit call f; f 0 nosplit; REJECT @@ -136,8 +137,8 @@ main 136 nosplit call f; f 0 nosplit; REJECT # Calling a splitting function from a nosplit function requires # having room for the saved caller PC of the call but also the -# saved caller PC for the call to morestack. Again the ARM works -# in less space. +# saved caller PC for the call to morestack. +# Again the ARM and Power64 work in less space. main 104 nosplit call f; f 0 call f main 108 nosplit call f; f 0 call f main 112 nosplit call f; f 0 call f; REJECT amd64 @@ -235,7 +236,7 @@ TestCases: switch goarch { case "power64", "power64le": ptrSize = 8 - fmt.Fprintf(&buf, "#define CALL BL\n#define REGISTER (R0)\n#define RET RETURN\n") + fmt.Fprintf(&buf, "#define CALL BL\n#define REGISTER (CTR)\n#define RET RETURN\n") case "arm": fmt.Fprintf(&buf, "#define CALL BL\n#define REGISTER (R0)\n") case "amd64": |