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| author | Paul E. Murphy <murp@ibm.com> | 2021-07-14 14:09:27 -0500 |
|---|---|---|
| committer | Lynn Boger <laboger@linux.vnet.ibm.com> | 2021-11-05 19:14:22 +0000 |
| commit | fa16efb8358e0cb23e285803075764abbdcffe5e (patch) | |
| tree | 48840800c98379e5fb0c286723c1b300297e48d7 /src/cmd/internal | |
| parent | 93bab8a2f918afa8417f7b46da69c21d643de880 (diff) | |
| download | go-fa16efb8358e0cb23e285803075764abbdcffe5e.tar.gz go-fa16efb8358e0cb23e285803075764abbdcffe5e.zip | |
cmd/link: enable internal linking of PIE binaries on ppc64le
The amd64/arm64 relocation processing is used as a template
and updated for ppc64le.
This requires updating the TOC relocation handling code to
support linux type TOC relocations too (note, AIX uses
TOC-indirect accesses).
Noteably, the shared flag of go functions is used as a proxy
for the local entry point offset encoded in elf objects. Functions
in go ppc64le shared objects always[1] insert 2 instructions to
regenerate the TOC pointer.
[1] excepting a couple special runtime functions, see preprocess
in obj9.go for specific details of this behavior.
Change-Id: I3646e6dc8a0a0ffe712771a976983315eae5c418
Reviewed-on: https://go-review.googlesource.com/c/go/+/352829
Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
Diffstat (limited to 'src/cmd/internal')
| -rw-r--r-- | src/cmd/internal/sys/supported.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cmd/internal/sys/supported.go b/src/cmd/internal/sys/supported.go index c6a78a51eb..f25aaabddd 100644 --- a/src/cmd/internal/sys/supported.go +++ b/src/cmd/internal/sys/supported.go @@ -158,7 +158,7 @@ func BuildModeSupported(compiler, buildmode, goos, goarch string) bool { func InternalLinkPIESupported(goos, goarch string) bool { switch goos + "/" + goarch { case "darwin/amd64", "darwin/arm64", - "linux/amd64", "linux/arm64", + "linux/amd64", "linux/arm64", "linux/ppc64le", "android/arm64", "windows-amd64", "windows-386", "windows-arm": return true |