cmd/link: only create .init_array section if not empty
This avoids a warning from old versions of the GNU linker or glibc.
No test because these old versions are not readily available.
I tested this by hand on CentOS 6.
Fixes #28722
Change-Id: I16640c9b83a79f759ec68fac64874803e74fbbfb
Reviewed-on: https://go-review.googlesource.com/c/153257
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/src/cmd/link/internal/ld/data.go b/src/cmd/link/internal/ld/data.go
index 848087d..5209878 100644
--- a/src/cmd/link/internal/ld/data.go
+++ b/src/cmd/link/internal/ld/data.go
@@ -1313,7 +1313,7 @@
case BuildModeCArchive, BuildModeCShared, BuildModeShared, BuildModePlugin:
hasinitarr = true
}
- if hasinitarr {
+ if hasinitarr && len(data[sym.SINITARR]) > 0 {
sect := addsection(ctxt.Arch, &Segdata, ".init_array", 06)
sect.Align = dataMaxAlign[sym.SINITARR]
datsize = Rnd(datsize, int64(sect.Align))
