rebuilding the shared libc

[David J. Kleikamp]

In article <676126057.15477 at minster.york.ac.uk> forsyth at minster.york.ac.uk writes:
>has anyone worked out precisely what ld options, and import and
>export files to use to build a new version of the C library,
>with some functions replaced?
>(we are running rs6000 aix version 3003.)

This has worked for me:

First extract shr.o from libc.a:
	ar x /lib/libc.a shr.o
	mv shr.o shr.o.orig

Next create an exports file:
	dump -Tv shr.o.orig | awk '$$4 == "EXP" {print $$8}' > libc.exp

now the bind:
   ld -bh:4 -D0 -bnso -H512 -T512 -bM:SRE -o shr.o {your files} shr.o.orig \
   /lib/libs.a -bI:/lib/syscalls.exp -bE:libc.exp -bE:/lib/syscalls.exp

Of course, you can add exports to libc.exp as you so desire.
-- 
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David J. "Shaggy" Kleikamp	dave at kleikamp.austin.ibm.com
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