qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-18 11:14:39 -07:00
Code Releases Activity

cmd/link: pass -Wl,-z,nodelete when creating an ELF shared library

Browse Source 
Go shared libraries do not support dlclose, and there is no likelihood
that they will suppose dlclose in the future.  Set the DF_1_NODELETE
flag to tell the dynamic linker to not attempt to remove them from
memory.  This makes the shared library act as though every call to
dlopen passed the RTLD_NODELETE flag.

Fixes #12582.
Update #11100.
Update #12873.

Change-Id: Id4b6e90a1b54e2e6fc8355b5fb22c5978fc762b4
Reviewed-on: https://go-review.googlesource.com/15605
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
This commit is contained in:
Ian Lance Taylor 2015-10-08 10:22:50 -07:00
parent 91059de095
commit bd7de94d7f
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/cmd/link/internal/ld/lib.go
View File

@ -982,11 +982,14 @@ func hostlink() {
if HEADTYPE == obj.Hdarwin {
argv = append(argv, "-dynamiclib")
} else {
// ELF.
argv = append(argv, "-Wl,-Bsymbolic")
if UseRelro() {
argv = append(argv, "-Wl,-z,relro")
}
argv = append(argv, "-shared")
// Pass -z nodelete to mark the shared library as
// non-closeable: a dlclose will do nothing.
argv = append(argv, "-shared", "-Wl,-z,nodelete")
}
case BuildmodeShared:
// TODO(mwhudson): unless you do this, dynamic relocations fill