[LLVMdev] ELF section load address
Colin LeMahieu
colinl at codeaurora.org
Thu Oct 30 08:41:02 PDT 2014
We had a need for calculating an ELF section load address, essentially the
LMA address printed out from GNU objdump with the h option:
Sections:
Idx Name Size VMA LMA File off Algn
0 .start 00003dc0 00000000 00000000 00001000 2**6
It looks like GNU binutils calculates this by applying the delta between the
vaddr and paddr of the section's enclosing segment.
I implemented this inside llvm-readobj:
Section {
Index: 30
Name: .strtab (9)
Type: SHT_STRTAB (0x3)
Flags [ (0x0)
]
Address: 0x0
Load Address: 0x0
Offset: 0x64FF88
Size: 2689979
Link: 0
Info: 0
AddressAlignment: 1
EntrySize: 0
}
Is there interest in this being upstreamed? It's a small patch.
Is this the best place to put this information inside of llvm-readobj and
underneath the 'Address:' line. If there's a better place let me know.
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