[lld] Emitting section relative offsets in st_value

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Hi,

I'm working on an AMDGPU target for lld, and I'm running into an issue where
the symbol offset stored in st_value is converted from section relative
to absolute during linking. I'm wondering if there is some way to
avoid this.

Here is the ELF dump from my object file:

  [Nr] Name Type Address Offset
       Size EntSize Flags Link Info Align
...
[ 2] .text PROGBITS 0000000000000000 00000100
       0000000000000258 0000000000000000 AX 0 0 256

Symbol table '.symtab' contains 5 entries:
   Num: Value Size Type Bind Vis Ndx Name
     0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
     1: 0000000000000250 0 NOTYPE LOCAL DEFAULT 2 BB0_2
     2: 00000000000001e4 0 NOTYPE LOCAL DEFAULT 2 BB0_3
     3: 0000000000000258 0 NOTYPE LOCAL DEFAULT 2 EndOfTextLabel
     4: 0000000000000000 0 NOTYPE GLOBAL DEFAULT 2 matmul

Here is the ELF dump from the executable produced by the linker:

  [Nr] Name Type Address Offset
       Size EntSize Flags Link Info Align
...
[ 6] .text PROGBITS 0000000000001000 00001000
       0000000000000258 0000000000000000 WAXo 0 0 256

Symbol table '.symtab' contains 5 entries:
   Num: Value Size Type Bind Vis Ndx Name
     0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
     1: 0000000000001000 484 IFUNC LOCAL DEFAULT 6 matmul
     2: 00000000000011e4 108 IFUNC LOCAL DEFAULT 6 BB0_3
     3: 0000000000001250 8 IFUNC LOCAL DEFAULT 6 BB0_2
     4: 0000000000001258 0 IFUNC LOCAL DEFAULT 6 EndOfTextLabel

Thanks,
Tom