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6l: work with OS X nm/otool

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6l was skipping emitting the (2 byte) symbol table if there were no imported or exported
symbols. You can't just drop the symbol table entirely - the linker dies if you have
a linkedit section but no table. You can omit the linkedit section or both the linkedit
and the dlyd parts in the right circumstances, but that seems much more risky to me.

R=rsc
CC=golang-dev
https://golang.org/cl/2421042
This commit is contained in:
Jim McGrath 2010-10-12 16:52:17 -04:00 committed by Russ Cox
parent 12da5a90e0
commit 8a1b2e59ef
1 changed files with 1 additions and 1 deletions
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src/cmd/ld/macho.c
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@ -410,7 +410,7 @@ domacholink(void)
uint64 val; uint64 val;
linkoff = 0; linkoff = 0;
if(nlinkdata > 0) { if(nlinkdata > 0 || nstrtab > 0) {
linkoff = rnd(HEADR+textsize, INITRND) + rnd(datsize, INITRND); linkoff = rnd(HEADR+textsize, INITRND) + rnd(datsize, INITRND);
seek(cout, linkoff, 0); seek(cout, linkoff, 0);