From 74a637bb29c1ab94cc378f5640f7b834a79a0b10 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@nokia.com>
Date: Wed, 29 Jul 2009 17:23:44 +0200
Subject: Implement support for getting the stack base on AIX.

---
 src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
index dddd83d..b8c91d1 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
@@ -536,6 +536,18 @@ static inline void* currentThreadStackBase()
     stack_t s;
     thr_stksegment(&s);
     return s.ss_sp;
+#elif PLATFORM(AIX)
+    pthread_t thread = pthread_self();
+    struct __pthrdsinfo threadinfo;
+    char regbuf[256];
+    int regbufsize = sizeof regbuf;
+
+    if (pthread_getthrds_np(&thread, PTHRDSINFO_QUERY_ALL,
+                            &threadinfo, sizeof threadinfo,
+                            &regbuf, &regbufsize) == 0)
+        return threadinfo.__pi_stackaddr;
+
+    return 0;
 #elif PLATFORM(OPENBSD)
     pthread_t thread = pthread_self();
     stack_t stack;
-- 
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