[bug] -static build for gst

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In Makefile.am we can see:
gst_LDFLAGS = -export-dynamic -static

The reason for -static is not clear to me. We have libgst.so and we can
link dynamically.

But upon linking dynamically, gst becomes less stable, at least when
working with FFI.

Anyone care to explain? Thanks




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I wanted to change this before rc2, but...

> But upon linking dynamically, gst becomes less stable, at
> least when working with FFI.

... can you expand on this?




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 Attachment:   http://smalltalk.gnu.org/files/issues/smalltalk-dynamic-bins.patch (1.56 KB)

With previous releases (e.g. 2.95c) I could build gst till the end,
install it and launch it. With 2.95f I have ./cofigure && make failed:

./gst --no-user-files
--kernel-dir="/home/ildar/tmp/RPM/BUILD/smalltalk-2.95f/kernel" -I
"/home/ildar/tmp/RPM/BUILD/smalltalk-2.95f/gst.im" -iQ /dev/null
BlockClosure new "<0x40301398>" did not understand selector
/var/tmp/RPM/BUILD/smalltalk-2.95f/kernel/ObjMemory.st:628: Aborted
(ip 8)BlockClosure>>#ifCurtailed:
(ip 10)Delay class>>#runDelayProcess
(ip 4)[] in Delay class>>#startDelayLoop
(ip 28)[] in Process>>#onBlock:at:suspend:
(ip 10) BlockClosure>>#on:do:
(ip 14)[] in Process>>#onBlock:at:suspend:
(ip 2) BlockClosure>>#ensure:
(ip 10)[] in Process>>#onBlock:at:suspend:
(ip 14)BlockContext class>>#fromClosure:parent:
make[2]: *** [gst.im] Aborted

The only change I made is in the _simple_ patch.




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I can reproduce it.




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Reduced test case (from arrays.st)

SortedCollection extend [
    SortedCollection class >> bug2 [
        ^##(#(8 6 9 10) asSortedCollection)
    ]

    bug: a [
        self sortFrom: lastOrdered + 1 to: lastIndex.
        ^(lastOrdered + 1 to: lastIndex) collect: [:each | a].
    ]
]

^SortedCollection bug2 bug: 5




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+Status:       fixed

Fixed with this simple patch:

--- orig/libgst/md-config.h
+++ mod/libgst/md-config.h
@@ -87,13 +87,7 @@
 # define REG_AVAILABILITY 0
 # define __DECL_REG1 __asm("%esi")
 # define __DECL_REG2 __asm("%edi")
-# if defined __APPLE__
-#  define __DECL_REG3 /* bug on Apple GCC? */
-# elif defined __PIC__ || defined __pic__
-#  define __DECL_REG3 __asm("%edx")   /* Don't conflict with GOT
pointer... */
-# else
-#  define __DECL_REG3 __asm("%ebx")   /* ...but prefer a callee-save
reg.  */
-# endif
+# define __DECL_REG3 /* no more caller-save regs if PIC is in use!  */
 #endif
 
 #if !defined(__DECL_REG1) && defined(PPC) || defined(_POWER) ||
defined(_IBMR2)

I have not yet removed the flag though.




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I see what you mean with "FFI is less stable".  GDBM tests fails, and on
x86-64 actually I cannot even build gst.  I think for 3.0 I'll go with
static linking.




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Doh, I know what's happening.  It's enough to define NO_MALLOC_OVERRIDE
to fix it...  and a lot of code just becomes dead...




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+Status:       fixed

fixed in 2.95g




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