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[AMDGPU] Update relocation documentation and elf flag machine architecture numbers 

Differential Revision: https://reviews.llvm.org/D42714

llvm-svn: 323835
This commit is contained in:
Tony Tye 2018-01-30 23:59:43 +00:00
parent eca881fc7a
commit db6c993faf
1 changed files with 25 additions and 24 deletions
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49
llvm/docs/AMDGPUUsage.rst
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@ -561,12 +561,13 @@ The AMDGPU backend uses the following ELF header:
``EF_AMDGPU_MACH_AMDGCN_GFX702`` 36 ``gfx702``
``EF_AMDGPU_MACH_AMDGCN_GFX703`` 37 ``gfx703``
``EF_AMDGPU_MACH_AMDGCN_GFX704`` 38 ``gfx704``
``EF_AMDGPU_MACH_AMDGCN_GFX801`` 39 ``gfx801``
``EF_AMDGPU_MACH_AMDGCN_GFX802`` 40 ``gfx802``
``EF_AMDGPU_MACH_AMDGCN_GFX803`` 41 ``gfx803``
``EF_AMDGPU_MACH_AMDGCN_GFX810`` 42 ``gfx810``
``EF_AMDGPU_MACH_AMDGCN_GFX900`` 43 ``gfx900``
``EF_AMDGPU_MACH_AMDGCN_GFX902`` 44 ``gfx902``
*reserved* 39 Reserved.
``EF_AMDGPU_MACH_AMDGCN_GFX801`` 40 ``gfx801``
``EF_AMDGPU_MACH_AMDGCN_GFX802`` 41 ``gfx802``
``EF_AMDGPU_MACH_AMDGCN_GFX803`` 42 ``gfx803``
``EF_AMDGPU_MACH_AMDGCN_GFX810`` 43 ``gfx810``
``EF_AMDGPU_MACH_AMDGCN_GFX900`` 44 ``gfx900``
``EF_AMDGPU_MACH_AMDGCN_GFX902`` 45 ``gfx902``
================================= ========== =============================
Sections
@ -773,24 +774,24 @@ The following relocation types are supported:
.. table:: AMDGPU ELF Relocation Records
:name: amdgpu-elf-relocation-records-table
========================== ===== ========== ==============================
Relocation Type Value Field Calculation
========================== ===== ========== ==============================
``R_AMDGPU_NONE`` 0 *none* *none*
``R_AMDGPU_ABS32_LO`` 1 ``word32`` (S + A) & 0xFFFFFFFF
``R_AMDGPU_ABS32_HI`` 2 ``word32`` (S + A) >> 32
``R_AMDGPU_ABS64`` 3 ``word64`` S + A
``R_AMDGPU_REL32`` 4 ``word32`` S + A - P
``R_AMDGPU_REL64`` 5 ``word64`` S + A - P
``R_AMDGPU_ABS32`` 6 ``word32`` S + A
``R_AMDGPU_GOTPCREL`` 7 ``word32`` G + GOT + A - P
``R_AMDGPU_GOTPCREL32_LO`` 8 ``word32`` (G + GOT + A - P) & 0xFFFFFFFF
``R_AMDGPU_GOTPCREL32_HI`` 9 ``word32`` (G + GOT + A - P) >> 32
``R_AMDGPU_REL32_LO`` 10 ``word32`` (S + A - P) & 0xFFFFFFFF
``R_AMDGPU_REL32_HI`` 11 ``word32`` (S + A - P) >> 32
*reserved* 12
``R_AMDGPU_RELATIVE64`` 13 ``word64`` B + A
========================== ===== ========== ==============================
========================== ======= ===== ========== ==============================
Relocation Type Kind Value Field Calculation
========================== ======= ===== ========== ==============================
``R_AMDGPU_NONE`` 0 *none* *none*
``R_AMDGPU_ABS32_LO`` Dynamic 1 ``word32`` (S + A) & 0xFFFFFFFF
``R_AMDGPU_ABS32_HI`` Dynamic 2 ``word32`` (S + A) >> 32
``R_AMDGPU_ABS64`` Dynamic 3 ``word64`` S + A
``R_AMDGPU_REL32`` Static 4 ``word32`` S + A - P
``R_AMDGPU_REL64`` Static 5 ``word64`` S + A - P
``R_AMDGPU_ABS32`` Static 6 ``word32`` S + A
``R_AMDGPU_GOTPCREL`` Static 7 ``word32`` G + GOT + A - P
``R_AMDGPU_GOTPCREL32_LO`` Static 8 ``word32`` (G + GOT + A - P) & 0xFFFFFFFF
``R_AMDGPU_GOTPCREL32_HI`` Static 9 ``word32`` (G + GOT + A - P) >> 32
``R_AMDGPU_REL32_LO`` Static 10 ``word32`` (S + A - P) & 0xFFFFFFFF
``R_AMDGPU_REL32_HI`` Static 11 ``word32`` (S + A - P) >> 32
*reserved* 12
``R_AMDGPU_RELATIVE64`` Dynamic 13 ``word64`` B + A
========================== ======= ===== ========== ==============================
.. _amdgpu-dwarf: