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authorqmuntal <quimmuntal@gmail.com>2026-04-01 16:07:46 +0200
committerQuim Muntal <quimmuntal@gmail.com>2026-04-10 03:20:39 -0700
commit0e31741044d519065f62a5e96499909d6cd230dc (patch)
treea9d4b59be92296a7de8640b8eee9842bc9c3c48e /src/runtime/os_aix.go
parent824a8a315668598436072566727cc5b28ac2f8c9 (diff)
downloadgo-0e31741044d519065f62a5e96499909d6cd230dc.tar.xz
runtime: fix AIX library initialization
On AIX, libInit passes a function descriptor instead of the function pointer to pthread_create. This is a regression from CL 706417. Change-Id: I660175eb992a41ef61b1927c51392887a724cd76 Reviewed-on: https://go-review.googlesource.com/c/go/+/761780 Reviewed-by: Ian Lance Taylor <iant@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: David Chase <drchase@google.com>
Diffstat (limited to 'src/runtime/os_aix.go')
-rw-r--r--src/runtime/os_aix.go7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/runtime/os_aix.go b/src/runtime/os_aix.go
index 7a667c2419..bf78869328 100644
--- a/src/runtime/os_aix.go
+++ b/src/runtime/os_aix.go
@@ -162,6 +162,10 @@ func newosproc0(stacksize uintptr, fn unsafe.Pointer) {
//go:nosplit
//go:nowritebarrierrec
func libpreinit() {
+ // On AIX, pthread_create expects a function descriptor pointer,
+ // not a raw code address. Set rt0LibGoFn to the descriptor
+ // so that libInit passes the right value.
+ rt0LibGoFn = uintptr(unsafe.Pointer(&rt0LibGoDesc))
initsig(true)
}
@@ -203,6 +207,9 @@ func mdestroy(mp *m) {
// tstart is a function descriptor to _tstart defined in assembly.
var tstart funcDescriptor
+// rt0LibGoDesc is a function descriptor to rt0_lib_go defined in assembly.
+var rt0LibGoDesc funcDescriptor
+
func newosproc(mp *m) {
var (
attr pthread_attr