Re: [sqlite] [PATCH] Fix "Symbol not found: _OSAtomicCompareAndSwapPtrBarrier" on Mac OS X 10.4 (Tiger)

[Richard Hipp]

On Tue, Aug 21, 2012 at 8:54 PM, Dwayne Litzenberger wrote:

> Recent versions of SQLite fail to run on Mac OS X 10.4 (Tiger) with
> the following error message:
>

We don't test SQLite in MacOS 10.4, but we do test every release on MacOS
10.2.  For that platform, we add the compile-time option:

-DSQLITE_WITHOUT_ZONEMALLOC

Doing the same should clear the problem on MacOS 10.4 as well.  And using
that approach will save us from having to maintain a bunch of hard-to-test
preprocessor logic.


>
> $ DYLD_LIBRARY_PATH=. ./sqlite3
> dyld: lazy symbol binding failed: Symbol not found:
> _OSAtomicCompareAndSwapPtrBarrier
>   Referenced from: ./libsqlite3.0.dylib
>   Expected in: /usr/lib/libSystem.B.dylib
>
> dyld: Symbol not found: _OSAtomicCompareAndSwapPtrBarrier
>   Referenced from: ./libsqlite3.0.dylib
>   Expected in: /usr/lib/libSystem.B.dylib
>
> Trace/BPT trap
>
> This is because OSAtomicCompareAndSwapPtrBarrier was not introduced
> until Mac OS X 10.5 (Leopard).
>
> Affected versions:
>
> - Latest trunk (fossil 45cdc32f1e cloned from https://sqlite.org/src/)
> - SQLite 3.7.13
> - SQLite 3.7.12
>
> Not affected:
>
> - SQLite 3.7.11
> - SQLite 3.7.10
> - SQLite 3.7.9
>
> Build environment:
>
> Mac OS X SDK: MacOSX10.6.sdk
>
> $ xcodebuild -version
> Xcode 3.2.5
> Component versions: DevToolsCore-1763.0; DevToolsSupport-1758.0
> BuildVersion: 10M2423
>
> $ gcc --version
> i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5664)
>
> How to reproduce:
>
> I built SQLite on a Mac OS X 10.5 (Leopard) machine, then copied
> .libs/ to a machine running 10.4 (Tiger) and ran sqlite3 from there:
>
> tar xzf sqlite-autoconf-3071300.tar.gz
> mkdir bld
> cd bld
> CFLAGS='-arch ppc -arch i386 -mmacosx-version-min=10.4' \
> LDFLAGS='-arch ppc -arch i386 -mmacosx-version-min=10.4' \
> ../sqlite-autoconf-3071300/configure --without-dependency-tracking
> make
> rsync --delete -a .libs/ tigerbox:~/sqlite-scratch/
> ssh -t tigerbox "cd ~/sqlite-scratch && DYLD_LIBRARY_PATH=. ./sqlite3"
>
> I should get a regular sqlite prompt.  What I actually got was the
> "Symbol not found" error above.
>
> It looks like other people have seen this issue before[1], but it does
> not look like it's actually been fixed.
>
> Please apply the attached patch against the latest trunk (45cdc32f1e),
> which fixes this bug.  (You can ignore the git commit id in the patch.
>  It wasn't obvious to me how to make fossil output a commit as a
> patch, so just I did a "git init" inside the fossil working directory
> and then worked from that.)
>
> Cheers,
> - Dwayne
>
> [1] http://sqlite.org:8080/pipermail/sqlite-users/2012-January/036184.html
>
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>


-- 
D. Richard Hipp
d...@sqlite.org
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Re: [sqlite] [PATCH] Fix "Symbol not found: _OSAtomicCompareAndSwapPtrBarrier" on Mac OS X 10.4 (Tiger)

[Dwayne Litzenberger]

On Tue, Aug 21, 2012 at 5:54 PM, Dwayne Litzenberger  wrote:
> Please apply the attached patch against the latest trunk (45cdc32f1e),
> which fixes this bug.

It looks like the mailman archives stripped the patch, so here it is
again, as text:

commit adf442e047fcf8523b43ff975be872a36e3d5b40
Author: Dwayne Litzenberger 
Date:   Tue Aug 21 14:59:05 2012 -0700

Don't try to use OSAtomicCompareAndSwapPtrBarrier when building
for Mac OS X 10.4 and earlier.

OSAtomicCompareAndSwapPtrBarrier was introduced in Mac OS X 10.5,
so we get a
dyld error when starting on 10.4 if we build using a newer SDK.

diff --git a/src/mem1.c b/src/mem1.c
index 3578496..c42db01 100644
--- a/src/mem1.c
+++ b/src/mem1.c
@@ -68,6 +68,7 @@
 #include 
 #include 
 #include 
+#include 
 static malloc_zone_t* _sqliteZone_;
 #define SQLITE_MALLOC(x) malloc_zone_malloc(_sqliteZone_, (x))
 #define SQLITE_FREE(x) malloc_zone_free(_sqliteZone_, (x));
@@ -235,8 +236,16 @@ static int sqlite3MemInit(void *NotUsed){
 malloc_zone_t* newzone = malloc_create_zone(4096, 0);
 malloc_set_zone_name(newzone, "Sqlite_Heap");
 do{
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
   success = OSAtomicCompareAndSwapPtrBarrier(NULL, newzone,
  (void * volatile *)&_sqliteZone_);
+#elif defined(__LP64__)
+  success = OSAtomicCompareAndSwap64Barrier((int64_t)NULL,
(int64_t)newzone,
+ (int64_t volatile *)&_sqliteZone_);
+#else
+  success = OSAtomicCompareAndSwap32Barrier((int32_t)NULL,
(int32_t)newzone,
+ (int32_t volatile *)&_sqliteZone_);
+#endif
 }while(!_sqliteZone_);
 if( !success ){
   /* somebody registered a zone first */
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