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pre-binding gets disabled.

Subject: pre-binding gets disabled.
From: Laurent Michel <email@hidden>
Date: Sat, 24 Dec 2005 09:19:44 -0500
Delivered-to: email@hidden
Delivered-to: email@hidden

Hi!

A quick question. (This is all done on Tiger 10.4.3)

I did configure my application to use pre-binding against my own shared lib. I passed the -seg1addr with different values to each shared lib to make sure I would have no overlapping. Xcode eventually linked everything successfully.

If I check the shared libs and the executable with otool -hv, everything is corretly prebound

However, when I run the application with the environment variable
DYLD_PREBIND_DEBUG set

I get the following:

asterix /Users/ldm/work/OSX/Comet/compiler/build [203] -> Release/ comet.app/Contents/MacOS/comet dyld: image uses flat-namespace so, parts of prebinding ignored /usr/ lib/libgcc_s.1.dylib dyld: image slid, so could not use prebinding in /Users/ldm/work/OSX/ Comet/compiler/build/Release/comet.app/Contents/MacOS/../../../jit.dylib dyld: image slid, so could not use prebinding in /Users/ldm/work/OSX/ Comet/compiler/build/Release/comet.app/Contents/MacOS/../../../thread- posix.dylib dyld: image slid, so could not use prebinding in /Users/ldm/work/OSX/ Comet/compiler/build/Release/comet.app/Contents/MacOS/../../../ data.dylib dyld: image slid, so could not use prebinding in /Users/ldm/work/OSX/ Comet/compiler/build/Release/comet.app/Contents/MacOS/../../../ localizer.dylib dyld: image slid, so could not use prebinding in /Users/ldm/work/OSX/ Comet/compiler/build/Release/comet.app/Contents/MacOS/../../../gui.dylib dyld: image slid, so could not use prebinding in /Users/ldm/work/OSX/ Comet/compiler/build/Release/comet.app/Contents/MacOS/../../../ runtime.dylib dyld: dependent libraries changed, so could not use prebinding in / Users/ldm/work/OSX/Comet/compiler/build/Release/comet.app/Contents/ MacOS/comet

So pre-binding is present but ignored.

I tried changing some of the values passed to -seg1addr for the shared libs shown above but without any success. (All the shared libs are listed, not a _single_ one gets its prebind info used).

So... What am I doing wrong ?

Here is the output of otool  on the main binary:

asterix /Users/ldm/work/OSX/Comet/compiler/build [204] -> otool -hv Release/comet.app/Contents/MacOS/comet Release/comet.app/Contents/MacOS/comet: Mach header magic cputype cpusubtype filetype ncmds sizeofcmds flags MH_MAGIC PPC ALL EXECUTE 60 7356 NOUNDEFS DYLDLINK PREBOUND TWOLEVEL WEAK_DEFINES BINDS_TO_WEAK

Any pointer or suggestion is most welcomed.

Thanks.

---
  Laurent

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