Carter, Jack
2012-Dec-15 03:41 UTC
[LLVMdev] Setting ELF section alignment at the Target level
How does one at the target level set/change the alignment of ELF sections?
I need to create a few target specific ELF sections. I seem to be able to create
the section and fill it with data that gets written out, but don't see how I
can set the alignment without first having an MCAssembler object handy.
I am patterning after existing code for .sbss In MipsTargetObjectFile.cpp:
ReginfoSection getContext().getELFSection(".MIPS.options",
ELF::SHT_MIPS_OPTIONS,
ELF::SHF_ALLOC |ELF::SHF_MIPS_NOSTRIP,
SectionKind::getMetadata());
ReginfoSection is defined as a MCSection *.
Dumping information to the out streamer is simple:
OutStreamer.SwitchSection(ReginfoSection);
It should be simple. I hope I just missed the obvious.
I'd also would like the ability to change the section fields of generic ELF
sections at the Target level.
Thanks,
Jack
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