Module goblin::elf::reloc

Relocation computations

The following notation is used to describe relocation computations specific to x86_64 ELF.

• A: The addend used to compute the value of the relocatable field.
• B: The base address at which a shared object is loaded into memory during execution. Generally, a shared object file is built with a base virtual address of 0. However, the execution address of the shared object is different.
• G: The offset into the global offset table at which the address of the relocation entry’s symbol resides during execution.
• GOT: The address of the global offset table.
• L: The section offset or address of the procedure linkage table entry for a symbol.
• P: The section offset or address of the storage unit being relocated, computed using r_offset.
• S: The value of the symbol whose index resides in the relocation entry.
• Z: The size of the symbol whose index resides in the relocation entry.

Below are some common x86_64 relocation computations you might find useful:

Relocation	Value	Size	Formula
R_X86_64_NONE	0	NONE	NONE
R_X86_64_64	1	64	S + A
R_X86_64_PC32	2	32	S + A - P
R_X86_64_GOT32	3	32	G + A
R_X86_64_PLT32	4	32	L + A - P
R_X86_64_COPY	5	NONE	NONE
R_X86_64_GLOB_DAT	6	64	S
R_X86_64_JUMP_SLOT	7	64	S
R_X86_64_RELATIVE	8	64	B + A
R_X86_64_GOTPCREL	9	32	G + GOT + A - P
R_X86_64_32	10	32	S + A
R_X86_64_32S	11	32	S + A
R_X86_64_16	12	16	S + A
R_X86_64_PC16	13	16	S + A - P
R_X86_64_8	14	8	S + A
R_X86_64_PC8	15	8	S + A - P
R_X86_64_DTPMOD64	16	64
R_X86_64_DTPOFF64	17	64
R_X86_64_TPOFF64	18	64
R_X86_64_TLSGD	19	32
R_X86_64_TLSLD	20	32
R_X86_64_DTPOFF32	21	32
R_X86_64_GOTTPOFF	22	32
R_X86_64_TPOFF32	23	32
R_X86_64_PC64	24	64	S + A - P
R_X86_64_GOTOFF64	25	64	S + A - GOT
R_X86_64_GOTPC32	26	32	GOT + A - P
R_X86_64_SIZE32	32	32	Z + A
R_X86_64_SIZE64	33	64	Z + A
R_X86_64_GOTPC32_TLSDESC	34	32
R_X86_64_TLSDESC_CALL	35	NONE
R_X86_64_TLSDESC	36	64 × 2
R_X86_64_IRELATIVE	37	64	indirect (B + A)

TLS information is at http://people.redhat.com/aoliva/writeups/TLS/RFC-TLSDESC-x86.txt

R_X86_64_IRELATIVE is similar to R_X86_64_RELATIVE except that the value used in this relocation is the program address returned by the function, which takes no arguments, at the address of the result of the corresponding R_X86_64_RELATIVE relocation.

Read more https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-54839.html

Modules

• reloc32
• reloc64

Structs

• Reloc
  A unified ELF relocation structure
• RelocIterator
• RelocSection
  An ELF section containing relocations, allowing lazy iteration over symbols.

Constants

• R_386_8
• R_386_16
• R_386_32
  Direct 32 bit
• R_386_32PLT
• R_386_COPY
  Copy symbol at runtime
• R_386_GLOB_DAT
  Create GOT entry
• R_386_GOT32
  32 bit GOT entry
• R_386_GOT32X
  Load from 32 bit GOT entry, relaxable
• R_386_GOTOFF
  32 bit offset to GOT
• R_386_GOTPC
  32 bit PC relative offset to GOT
• R_386_IRELATIVE
  Adjust indirectly by program base
• R_386_JMP_SLOT
  Create PLT entry
• R_386_NONE
  No reloc
• R_386_NUM
  Keep this the last entry
• R_386_PC8
• R_386_PC16
• R_386_PC32
  PC relative 32 bit
• R_386_PLT32
  32 bit PLT address
• R_386_RELATIVE
  Adjust by program base
• R_386_SIZE32
  32-bit symbol size
• R_386_TLS_DESC
  TLS descriptor containing pointer to code and to argument, returning the TLS offset for the symbol
• R_386_TLS_DESC_CALL
  Marker of call through TLS descriptor for relaxation
• R_386_TLS_DTPMOD32
  ID of module containing symbol
• R_386_TLS_DTPOFF32
  Offset in TLS block
• R_386_TLS_GD
  Direct 32 bit for GNU version of general dynamic thread local data
• R_386_TLS_GD_32
  Direct 32 bit for general dynamic thread local data
• R_386_TLS_GD_CALL
  Relocation for call to __tls_get_addr()
• R_386_TLS_GD_POP
  Tag for popl in GD TLS code
• R_386_TLS_GD_PUSH
  Tag for pushl in GD TLS code
• R_386_TLS_GOTDESC
  GOT offset for TLS descriptor.
• R_386_TLS_GOTIE
  GOT entry for static TLS block offset
• R_386_TLS_IE
  Address of GOT entry for static TLS block offset
• R_386_TLS_IE_32
  GOT entry for negated static TLS block offset
• R_386_TLS_LDM
  Direct 32 bit for GNU version of local dynamic thread local data in LE code
• R_386_TLS_LDM_32
  Direct 32 bit for local dynamic thread local data in LE code
• R_386_TLS_LDM_CALL
  Relocation for call to __tls_get_addr() in LDM code
• R_386_TLS_LDM_POP
  Tag for popl in LDM TLS code
• R_386_TLS_LDM_PUSH
  Tag for pushl in LDM TLS code
• R_386_TLS_LDO_32
  Offset relative to TLS block
• R_386_TLS_LE
  Offset relative to static TLS block
• R_386_TLS_LE_32
  Negated offset relative to static TLS block
• R_386_TLS_TPOFF
  Offset in static TLS block
• R_386_TLS_TPOFF32
  Negated offset in static TLS block
• R_AARCH64_ABS16
  Direct 16-bit
• R_AARCH64_ABS32
  Direct 32 bit
• R_AARCH64_ABS64
  Direct 64 bit
• R_AARCH64_ADD_ABS_LO12_NC
  Dir. ADD imm. from bits 11:0
• R_AARCH64_ADR_GOT_PAGE
  P-page-rel. GOT off. ADRP 32:12
• R_AARCH64_ADR_PREL_LO21
  PC-rel. ADR imm. from bits 20:0
• R_AARCH64_ADR_PREL_PG_HI21
  Page-rel. ADRP imm. from 32:12
• R_AARCH64_ADR_PREL_PG_HI21_NC
  Likewise; no overflow check
• R_AARCH64_CALL26
  Likewise for CALL
• R_AARCH64_CONDBR19
  PC-rel. cond. br. imm. from 20:2.
• R_AARCH64_COPY
  Copy symbol at runtime
• R_AARCH64_GLOB_DAT
  Create GOT entry
• R_AARCH64_GOTREL32
  GOT-relative 32-bit
• R_AARCH64_GOTREL64
  GOT-relative 64-bit
• R_AARCH64_GOT_LD_PREL19
  PC-rel. GOT off. load imm. 20:2
• R_AARCH64_IRELATIVE
  STT_GNU_IFUNC relocation
• R_AARCH64_JUMP26
  PC-rel. B imm. from bits 27:2
• R_AARCH64_JUMP_SLOT
  Create PLT entry
• R_AARCH64_LD64_GOTOFF_LO15
  GOT-rel. off. LD/ST imm. 14:3
• R_AARCH64_LD64_GOTPAGE_LO15
  GOT-page-rel. GOT off. LD/ST 14:3
• R_AARCH64_LD64_GOT_LO12_NC
  Dir. GOT off. LD/ST imm. 11:3
• R_AARCH64_LDST8_ABS_LO12_NC
  Likewise for LD/ST; no check.
• R_AARCH64_LDST16_ABS_LO12_NC
  Dir. ADD imm. from bits 11:1
• R_AARCH64_LDST32_ABS_LO12_NC
  Likewise for bits 11:2
• R_AARCH64_LDST64_ABS_LO12_NC
  Likewise for bits 11:3
• R_AARCH64_LDST128_ABS_LO12_NC
  Dir. ADD imm. from bits 11:4
• R_AARCH64_LD_PREL_LO19
  PC-rel. LD imm. from bits 20:2
• R_AARCH64_MOVW_GOTOFF_G0
  GOT-rel. off. MOV{N,Z} imm. 15:0.
• R_AARCH64_MOVW_GOTOFF_G0_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_GOTOFF_G1
  GOT-rel. o. MOV{N,Z} imm. 31:16
• R_AARCH64_MOVW_GOTOFF_G1_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_GOTOFF_G2
  GOT-rel. o. MOV{N,Z} imm. 47:32
• R_AARCH64_MOVW_GOTOFF_G2_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_GOTOFF_G3
  GOT-rel. o. MOV{N,Z} imm. 63:48
• R_AARCH64_MOVW_PREL_G0
  PC-rel. MOV{N,Z} imm. from 15:0
• R_AARCH64_MOVW_PREL_G0_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_PREL_G1
  PC-rel. MOV{N,Z} imm. from 31:16.
• R_AARCH64_MOVW_PREL_G1_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_PREL_G2
  PC-rel. MOV{N,Z} imm. from 47:32.
• R_AARCH64_MOVW_PREL_G2_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_PREL_G3
  PC-rel. MOV{N,Z} imm. from 63:48.
• R_AARCH64_MOVW_SABS_G0
  Dir. MOV{N,Z} imm. from 15:0
• R_AARCH64_MOVW_SABS_G1
  Dir. MOV{N,Z} imm. from 31:16
• R_AARCH64_MOVW_SABS_G2
  Dir. MOV{N,Z} imm. from 47:32
• R_AARCH64_MOVW_UABS_G0
  Dir. MOVZ imm. from bits 15:0
• R_AARCH64_MOVW_UABS_G0_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_UABS_G1
  Dir. MOVZ imm. from bits 31:16
• R_AARCH64_MOVW_UABS_G1_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_UABS_G2
  Dir. MOVZ imm. from bits 47:32
• R_AARCH64_MOVW_UABS_G2_NC
  Likewise for MOVK; no check
• R_AARCH64_MOVW_UABS_G3
  Dir. MOV{K,Z} imm. from 63:48
• R_AARCH64_NONE
  No relocation
• R_AARCH64_P32_ABS32
  Direct 32 bit
• R_AARCH64_P32_COPY
  Copy symbol at runtime
• R_AARCH64_P32_GLOB_DAT
  Create GOT entry
• R_AARCH64_P32_IRELATIVE
  STT_GNU_IFUNC relocation
• R_AARCH64_P32_JUMP_SLOT
  Create PLT entry
• R_AARCH64_P32_RELATIVE
  Adjust by program base
• R_AARCH64_P32_TLSDESC
  TLS Descriptor
• R_AARCH64_P32_TLS_DTPMOD
  Module number, 32 bit
• R_AARCH64_P32_TLS_DTPREL
  Module-relative offset, 32 bit
• R_AARCH64_P32_TLS_TPREL
  TP-relative offset, 32 bit
• R_AARCH64_PREL16
  PC-relative 16-bit
• R_AARCH64_PREL32
  PC-relative 32-bit
• R_AARCH64_PREL64
  PC-relative 64-bit
• R_AARCH64_RELATIVE
  Adjust by program base
• R_AARCH64_TLSDESC
  TLS Descriptor
• R_AARCH64_TLSDESC_ADD
  Relax ADD
• R_AARCH64_TLSDESC_ADD_LO12
  Direct ADD imm. from 11:0
• R_AARCH64_TLSDESC_ADR_PAGE21
  Page-rel. ADRP imm. 32:12
• R_AARCH64_TLSDESC_ADR_PREL21
  PC-rel. ADR immediate 20:0
• R_AARCH64_TLSDESC_CALL
  Relax BLR
• R_AARCH64_TLSDESC_LD64_LO12
  Direct LD off. from 11:3
• R_AARCH64_TLSDESC_LDR
  Relax LDR
• R_AARCH64_TLSDESC_LD_PREL19
  PC-rel. load immediate 20:2
• R_AARCH64_TLSDESC_OFF_G0_NC
  GOT-rel. MOVK imm. 15:0; no ck
• R_AARCH64_TLSDESC_OFF_G1
  GOT-rel. MOV{N,Z} imm. 31:16
• R_AARCH64_TLSGD_ADD_LO12_NC
  direct ADD imm. from 11:0
• R_AARCH64_TLSGD_ADR_PAGE21
  page-rel. ADRP imm. 32:12
• R_AARCH64_TLSGD_ADR_PREL21
  PC-relative ADR imm. 20:0
• R_AARCH64_TLSGD_MOVW_G0_NC
  GOT-rel. MOVK imm. 15:0
• R_AARCH64_TLSGD_MOVW_G1
  GOT-rel. MOV{N,Z} 31:16
• R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21
  Page-rel. ADRP 32:12
• R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC
  Direct LD off. 11:3
• R_AARCH64_TLSIE_LD_GOTTPREL_PREL19
  PC-rel. load imm. 20:2
• R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC
  GOT-rel. MOVK 15:0
• R_AARCH64_TLSIE_MOVW_GOTTPREL_G1
  GOT-rel. MOV{N,Z} 31:16
• R_AARCH64_TLSLD_ADD_DTPREL_HI12
  DTP-rel. ADD imm. from 23:12.
• R_AARCH64_TLSLD_ADD_DTPREL_LO12
  DTP-rel. ADD imm. from 11:0
• R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC
  Likewise; no ovfl. check
• R_AARCH64_TLSLD_ADD_LO12_NC
  Like 514; local dynamic model
• R_AARCH64_TLSLD_ADR_PAGE21
  Like 513; local dynamic model
• R_AARCH64_TLSLD_ADR_PREL21
  Like 512; local dynamic model
• R_AARCH64_TLSLD_LDST8_DTPREL_LO12
  DTP-rel. LD/ST imm. 11:0
• R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLD_LDST16_DTPREL_LO12
  DTP-rel. LD/ST imm. 11:1
• R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLD_LDST32_DTPREL_LO12
  DTP-rel. LD/ST imm. 11:2
• R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLD_LDST64_DTPREL_LO12
  DTP-rel. LD/ST imm. 11:3
• R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLD_LDST128_DTPREL_LO12
  DTP-rel. LD/ST imm. 11:4.
• R_AARCH64_TLSLD_LDST128_DTPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLD_LD_PREL19
  TLS PC-rel. load imm. 20:2
• R_AARCH64_TLSLD_MOVW_DTPREL_G0
  TLS DTP-rel. MOV{N,Z} 15:0
• R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC
  Likewise; MOVK; no check
• R_AARCH64_TLSLD_MOVW_DTPREL_G1
  TLS DTP-rel. MOV{N,Z} 31:16
• R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC
  Likewise; MOVK; no check
• R_AARCH64_TLSLD_MOVW_DTPREL_G2
  TLS DTP-rel. MOV{N,Z} 47:32
• R_AARCH64_TLSLD_MOVW_G0_NC
  Like 516; local dynamic model
• R_AARCH64_TLSLD_MOVW_G1
  Like 515; local dynamic model
• R_AARCH64_TLSLE_ADD_TPREL_HI12
  TP-rel. ADD imm. 23:12
• R_AARCH64_TLSLE_ADD_TPREL_LO12
  TP-rel. ADD imm. 11:0
• R_AARCH64_TLSLE_ADD_TPREL_LO12_NC
  Likewise; no ovfl. check
• R_AARCH64_TLSLE_LDST8_TPREL_LO12
  TP-rel. LD/ST off. 11:0
• R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC
  Likewise; no ovfl. check.
• R_AARCH64_TLSLE_LDST16_TPREL_LO12
  TP-rel. LD/ST off. 11:1
• R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLE_LDST32_TPREL_LO12
  TP-rel. LD/ST off. 11:2
• R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLE_LDST64_TPREL_LO12
  TP-rel. LD/ST off. 11:3
• R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLE_LDST128_TPREL_LO12
  TP-rel. LD/ST off. 11:4
• R_AARCH64_TLSLE_LDST128_TPREL_LO12_NC
  Likewise; no check
• R_AARCH64_TLSLE_MOVW_TPREL_G0
  TLS TP-rel. MOV{N,Z} 15:0
• R_AARCH64_TLSLE_MOVW_TPREL_G0_NC
  Likewise; MOVK; no check
• R_AARCH64_TLSLE_MOVW_TPREL_G1
  TLS TP-rel. MOV{N,Z} 31:16
• R_AARCH64_TLSLE_MOVW_TPREL_G1_NC
  Likewise; MOVK; no check
• R_AARCH64_TLSLE_MOVW_TPREL_G2
  TLS TP-rel. MOV{N,Z} 47:32
• R_AARCH64_TLS_DTPMOD
  Module number, 64 bit
• R_AARCH64_TLS_DTPREL
  Module-relative offset, 64 bit
• R_AARCH64_TLS_TPREL
  TP-relative offset, 64 bit
• R_AARCH64_TSTBR14
  PC-rel. TBZ/TBNZ imm. from 15:2
• R_ARM_ABS8
  Direct 8 bit
• R_ARM_ABS12
  Direct 12 bit
• R_ARM_ABS16
  Direct 16 bit
• R_ARM_ABS32
  Direct 32 bit
• R_ARM_ABS32_NOI
  Direct 32-bit
• R_ARM_ALU_PCREL_7_0
  Obsolete
• R_ARM_ALU_PCREL_15_8
  Obsolete
• R_ARM_ALU_PCREL_23_15
  Obsolete
• R_ARM_ALU_PC_G0
  PC relative (ADD, SUB)
• R_ARM_ALU_PC_G0_NC
  PC relative (ADD, SUB)
• R_ARM_ALU_PC_G1
  PC relative (ADD, SUB)
• R_ARM_ALU_PC_G1_NC
  PC relative (ADD, SUB)
• R_ARM_ALU_PC_G2
  PC relative (ADD, SUB)
• R_ARM_ALU_SBREL_19_12
  Deprecated, prog. base relative
• R_ARM_ALU_SBREL_27_20
  Deprecated, prog. base relative
• R_ARM_ALU_SB_G0
  Program base relative (ADD,SUB)
• R_ARM_ALU_SB_G0_NC
  Program base relative (ADD,SUB)
• R_ARM_ALU_SB_G1
  Program base relative (ADD,SUB)
• R_ARM_ALU_SB_G1_NC
  Program base relative (ADD,SUB)
• R_ARM_ALU_SB_G2
  Program base relative (ADD,SUB)
• R_ARM_AMP_VCALL9
• R_ARM_BASE_ABS
  Adjust by program base
• R_ARM_CALL
  PC relative 24 bit (BL, BLX)
• R_ARM_COPY
  Copy symbol at runtime
• R_ARM_GLOB_DAT
  Create GOT entry
• R_ARM_GNU_VTENTRY
• R_ARM_GNU_VTINHERIT
• R_ARM_GOT32
  32 bit GOT entry
• R_ARM_GOTOFF
  32 bit offset to GOT
• R_ARM_GOTOFF12
  12 bit, GOT entry relative to GOT origin (LDR, STR)
• R_ARM_GOTPC
  32 bit PC relative offset to GOT
• R_ARM_GOTRELAX
• R_ARM_GOT_ABS
  GOT entry
• R_ARM_GOT_BREL12
  GOT entry relative to GOT origin (LDR)
• R_ARM_GOT_PREL
  PC relative GOT entry
• R_ARM_IRELATIVE
• R_ARM_JUMP24
  PC relative 24 bit (B, BL<cond>)
• R_ARM_JUMP_SLOT
  Create PLT entry
• R_ARM_LDC_PC_G0
  PC relative (LDC, STC)
• R_ARM_LDC_PC_G1
  PC relative (LDC, STC)
• R_ARM_LDC_PC_G2
  PC relative (LDC, STC)
• R_ARM_LDC_SB_G0
  Program base relative (LDC,STC)
• R_ARM_LDC_SB_G1
  Program base relative (LDC,STC)
• R_ARM_LDC_SB_G2
  Program base relative (LDC,STC)
• R_ARM_LDRS_PC_G0
  PC relative (STR{D,H},LDR{D,SB,H,SH})
• R_ARM_LDRS_PC_G1
  PC relative (STR{D,H},LDR{D,SB,H,SH})
• R_ARM_LDRS_PC_G2
  PC relative (STR{D,H},LDR{D,SB,H,SH})
• R_ARM_LDRS_SB_G0
  Program base relative (LDR, STR, LDRB, STRB)
• R_ARM_LDRS_SB_G1
  Program base relative (LDR, STR, LDRB, STRB)
• R_ARM_LDRS_SB_G2
  Program base relative (LDR, STR, LDRB, STRB)
• R_ARM_LDR_PC_G1
  PC relative (LDR,STR,LDRB,STRB)
• R_ARM_LDR_PC_G2
  PC relative (LDR,STR,LDRB,STRB)
• R_ARM_LDR_SBREL_11_0
  Deprecated, prog. base relative
• R_ARM_LDR_SB_G0
  Program base relative (LDR,STR, LDRB, STRB)
• R_ARM_LDR_SB_G1
  Program base relative (LDR, STR, LDRB, STRB)
• R_ARM_LDR_SB_G2
  Program base relative (LDR, STR, LDRB, STRB)
• R_ARM_ME_TOO
  Obsolete
• R_ARM_MOVT_ABS
  Direct high 16-bit (MOVT)
• R_ARM_MOVT_BREL
  Program base relative high 16 bit (MOVT)
• R_ARM_MOVT_PREL
  PC relative (MOVT)
• R_ARM_MOVW_ABS_NC
  Direct 16-bit (MOVW)
• R_ARM_MOVW_BREL
  Program base relative 16 bit (MOVW)
• R_ARM_MOVW_BREL_NC
  Program base relative 16 bit (MOVW)
• R_ARM_MOVW_PREL_NC
  PC relative 16-bit (MOVW)
• R_ARM_NONE
  No reloc
• R_ARM_NUM
  Keep this the last entry
• R_ARM_PC13
• R_ARM_PC24
  Deprecated PC relative 26 bit branch
• R_ARM_PLT32
  Deprecated, 32 bit PLT address
• R_ARM_PLT32_ABS
• R_ARM_PREL31
  32 bit PC relative
• R_ARM_RABS22
• R_ARM_RBASE
• R_ARM_REL32
  PC relative 32 bit
• R_ARM_REL32_NOI
  PC relative 32-bit
• R_ARM_RELATIVE
  Adjust by program base
• R_ARM_RPC24
• R_ARM_RREL32
• R_ARM_RSBREL32
• R_ARM_RXPC25
• R_ARM_SBREL31
  Program base relative
• R_ARM_SBREL32
• R_ARM_SWI24
  Obsolete static relocation
• R_ARM_TARGET1
• R_ARM_TARGET2
• R_ARM_THM_ABS5
  Direct & 0x7C (LDR, STR)
• R_ARM_THM_ALU_PREL_11_0
  PC relative 12 bit (Thumb32 ADR.W)
• R_ARM_THM_GOT_BREL12
  GOT entry relative to GOT origin, 12 bit (Thumb32 LDR)
• R_ARM_THM_JUMP6
  PC relative X & 0x7E (Thumb16 CBZ, CBNZ)
• R_ARM_THM_JUMP19
  PC relative 20 bit (Thumb32 B<cond>.W)
• R_ARM_THM_JUMP24
  PC relative 24 bit (Thumb32 B.W)
• R_ARM_THM_MOVT_ABS
  Direct high 16 bit (Thumb32 MOVT)
• R_ARM_THM_MOVT_BREL
  Program base relative high 16 bit (Thumb32 MOVT)
• R_ARM_THM_MOVT_PREL
  PC relative high 16 bit (Thumb32 MOVT)
• R_ARM_THM_MOVW_ABS_NC
  Direct 16 bit (Thumb32 MOVW)
• R_ARM_THM_MOVW_BREL
  Program base relative 16 bit (Thumb32 MOVW)
• R_ARM_THM_MOVW_BREL_NC
  Program base relative 16 bit (Thumb32 MOVW)
• R_ARM_THM_MOVW_PREL_NC
  PC relative 16 bit (Thumb32 MOVW)
• R_ARM_THM_PC8
  PC relative & 0x3FC(Thumb16 LDR, ADD, ADR).
• R_ARM_THM_PC9
  PC relative & 0x1FE (Thumb16 B/B<cond>)
• R_ARM_THM_PC11
  PC relative & 0xFFE (Thumb16 B)
• R_ARM_THM_PC12
  PC relative 12 bit (Thumb32 LDR{D,SB,H,SH})
• R_ARM_THM_PC22
  PC relative 24 bit (Thumb32 BL)
• R_ARM_THM_RPC22
• R_ARM_THM_SWI8
  Reserved
• R_ARM_THM_TLS_CALL
• R_ARM_THM_TLS_DESCSEQ
• R_ARM_THM_TLS_DESCSEQ16
• R_ARM_THM_TLS_DESCSEQ32
• R_ARM_THM_XPC22
  Reserved
• R_ARM_TLS_CALL
• R_ARM_TLS_DESC
  Dynamic relocation
• R_ARM_TLS_DESCSEQ
  TLS relaxation
• R_ARM_TLS_DTPMOD32
  ID of module containing symbol
• R_ARM_TLS_DTPOFF32
  Offset in TLS block
• R_ARM_TLS_GD32
  PC-rel 32 bit for global dynamic thread local data
• R_ARM_TLS_GOTDESC
• R_ARM_TLS_IE12GP
  12 bit GOT entry relative to GOT origin (LDR)
• R_ARM_TLS_IE32
  PC-rel 32 bit for GOT entry of static TLS block offset
• R_ARM_TLS_LDM32
  PC-rel 32 bit for local dynamic thread local data
• R_ARM_TLS_LDO12
  12 bit relative to TLS block (LDR, STR)
• R_ARM_TLS_LDO32
  32 bit offset relative to TLS block
• R_ARM_TLS_LE12
  12 bit relative to static TLS block (LDR, STR)
• R_ARM_TLS_LE32
  32 bit offset relative to static TLS block
• R_ARM_TLS_TPOFF32
  Offset in static TLS block
• R_ARM_V4BX
• R_ARM_XPC25
  Reserved
• R_MIPS_16
  Direct 16 bit
• R_MIPS_26
  Direct 26 bit shifted
• R_MIPS_32
  Direct 32 bit
• R_MIPS_64
• R_MIPS_ADD_IMMEDIATE
• R_MIPS_CALL16
  16 bit GOT entry for function
• R_MIPS_CALL_HI16
• R_MIPS_CALL_LO16
• R_MIPS_COPY
• R_MIPS_DELETE
• R_MIPS_GLOB_DAT
• R_MIPS_GOT16
  16 bit GOT entry
• R_MIPS_GOT_DISP
• R_MIPS_GOT_HI16
• R_MIPS_GOT_LO16
• R_MIPS_GOT_OFST
• R_MIPS_GOT_PAGE
• R_MIPS_GPREL16
  GP relative 16 bit
• R_MIPS_GPREL32
  GP relative 32 bit
• R_MIPS_HI16
  High 16 bit
• R_MIPS_HIGHER
• R_MIPS_HIGHEST
• R_MIPS_INSERT_A
• R_MIPS_INSERT_B
• R_MIPS_JALR
• R_MIPS_JUMP_SLOT
• R_MIPS_LITERAL
  16 bit literal entry
• R_MIPS_LO16
  Low 16 bit
• R_MIPS_NONE
  No reloc
• R_MIPS_NUM
• R_MIPS_PC16
  PC relative 16 bit
• R_MIPS_PJUMP
• R_MIPS_REL16
• R_MIPS_REL32
  PC relative 32 bit
• R_MIPS_RELGOT
• R_MIPS_SCN_DISP
• R_MIPS_SHIFT5
• R_MIPS_SHIFT6
• R_MIPS_SUB
• R_MIPS_TLS_DTPMOD32
  Module number 32 bit
• R_MIPS_TLS_DTPMOD64
  Module number 64 bit
• R_MIPS_TLS_DTPREL32
  Module-relative offset 32 bit
• R_MIPS_TLS_DTPREL64
  Module-relative offset 64 bit
• R_MIPS_TLS_DTPREL_HI16
  Module-relative offset, high 16 bits
• R_MIPS_TLS_DTPREL_LO16
  Module-relative offset, low 16 bits
• R_MIPS_TLS_GD
  16 bit GOT offset for GD
• R_MIPS_TLS_GOTTPREL
  16 bit GOT offset for IE
• R_MIPS_TLS_LDM
  16 bit GOT offset for LDM
• R_MIPS_TLS_TPREL32
  TP-relative offset, 32 bit6
• R_MIPS_TLS_TPREL64
  TP-relative offset, 64 bit
• R_MIPS_TLS_TPREL_HI16
  TP-relative offset, high 16 bits
• R_MIPS_TLS_TPREL_LO16
  TP-relative offset, low 16 bits
• R_OR1K_8
• R_OR1K_8_PCREL
• R_OR1K_16
• R_OR1K_16_PCREL
• R_OR1K_32
• R_OR1K_32_PCREL
• R_OR1K_COPY
• R_OR1K_GLOB_DAT
• R_OR1K_GNU_VTENTRY
• R_OR1K_GNU_VTINHERIT
• R_OR1K_GOT16
• R_OR1K_GOTOFF_HI16
• R_OR1K_GOTOFF_LO16
• R_OR1K_GOTPC_HI16
• R_OR1K_GOTPC_LO16
• R_OR1K_HI_16_IN_INSN
• R_OR1K_INSN_REL_26
• R_OR1K_JMP_SLOT
• R_OR1K_LO_16_IN_INSN
• R_OR1K_NONE
• R_OR1K_NUM
• R_OR1K_PLT26
• R_OR1K_RELATIVE
• R_OR1K_TLS_DTPMOD
• R_OR1K_TLS_DTPOFF
• R_OR1K_TLS_GD_HI16
• R_OR1K_TLS_GD_LO16
• R_OR1K_TLS_IE_HI16
• R_OR1K_TLS_IE_LO16
• R_OR1K_TLS_LDM_HI16
• R_OR1K_TLS_LDM_LO16
• R_OR1K_TLS_LDO_HI16
• R_OR1K_TLS_LDO_LO16
• R_OR1K_TLS_LE_HI16
• R_OR1K_TLS_LE_LO16
• R_OR1K_TLS_TPOFF
• R_RISCV_32
  Runtime relocation: word32 = S + A
• R_RISCV_64
  Runtime relocation: word64 = S + A
• R_RISCV_ADD8
  8-bit label addition: word8 = S + A
• R_RISCV_ADD16
  16-bit label addition: word16 = S + A
• R_RISCV_ADD32
  32-bit label addition: word32 = S + A
• R_RISCV_ADD64
  64-bit label addition: word64 = S + A
• R_RISCV_ALIGN
  Alignment statement
• R_RISCV_BRANCH
  PC-relative branch (SB-Type)
• R_RISCV_CALL
  PC-relative call: MACRO call,tail (auipc+jalr pair)
• R_RISCV_CALL_PLT
  PC-relative call (PLT): MACRO call,tail (auipc+jalr pair) PIC
• R_RISCV_COPY
  Runtime relocation: must be in executable, not allowed in shared library
• R_RISCV_GNU_VTENTRY
  GNU C++ vtable member usage
• R_RISCV_GNU_VTINHERIT
  GNU C++ vtable hierarchy
• R_RISCV_GOT_HI20
  PC-relative GOT reference: MACRO la
• R_RISCV_GPREL_I
  GP-relative reference (I-Type)
• R_RISCV_GPREL_S
  GP-relative reference (S-Type)
• R_RISCV_HI20
  Absolute address: %hi(symbol) (U-Type)
• R_RISCV_JAL
  PC-relative jump (UJ-Type)
• R_RISCV_JUMP_SLOT
  Runtime relocation: word32,64 = S; handled by PLT unless LD_BIND_NOW
• R_RISCV_LO12_I
  Absolute address: %lo(symbol) (I-Type)
• R_RISCV_LO12_S
  Absolute address: %lo(symbol) (S-Type)
• R_RISCV_NONE
  None
• R_RISCV_PCREL_HI20
  PC-relative reference: %pcrel_hi(symbol) (U-Type)
• R_RISCV_PCREL_LO12_I
  PC-relative reference: %pcrel_lo(symbol) (I-Type)
• R_RISCV_PCREL_LO12_S
  PC-relative reference: %pcrel_lo(symbol) (S-Type)
• R_RISCV_RELATIVE
  Runtime relocation: word32,64 = B + A
• R_RISCV_RELAX
  Instruction pair can be relaxed
• R_RISCV_RVC_BRANCH
  PC-relative branch offset (CB-Type)
• R_RISCV_RVC_JUMP
  PC-relative jump offset (CJ-Type)
• R_RISCV_RVC_LUI
  Absolute address (CI-Type)
• R_RISCV_SET6
  Local label subtraction
• R_RISCV_SET8
  Local label subtraction
• R_RISCV_SET16
  Local label subtraction
• R_RISCV_SET32
  Local label subtraction
• R_RISCV_SUB6
  Local label subtraction
• R_RISCV_SUB8
  8-bit label subtraction: word8 = S - A
• R_RISCV_SUB16
  16-bit label subtraction: word16 = S - A
• R_RISCV_SUB32
  32-bit label subtraction: word32 = S - A
• R_RISCV_SUB64
  64-bit label subtraction: word64 = S - A
• R_RISCV_TLS_DTPMOD32
  TLS relocation: word32 = S->TLSINDEX
• R_RISCV_TLS_DTPMOD64
  TLS relocation: word64 = S->TLSINDEX
• R_RISCV_TLS_DTPREL32
  TLS relocation: word32 = TLS + S + A - TLS_TP_OFFSET
• R_RISCV_TLS_DTPREL64
  TLS relocation: word64 = TLS + S + A - TLS_TP_OFFSET
• R_RISCV_TLS_GD_HI20
  PC-relative TLS GD reference: MACRO la.tls.gd
• R_RISCV_TLS_GOT_HI20
  PC-relative TLS IE GOT offset: MACRO la.tls.ie
• R_RISCV_TLS_TPREL32
  TLS relocation: word32 = TLS + S + A + S_TLS_OFFSET - TLS_DTV_OFFSET
• R_RISCV_TLS_TPREL64
  TLS relocation: word64 = TLS + S + A + S_TLS_OFFSET - TLS_DTV_OFFSET
• R_RISCV_TPREL_ADD
  TLS LE thread usage: %tprel_add(symbol)
• R_RISCV_TPREL_HI20
  TLS LE thread offset: %tprel_hi(symbol) (U-Type)
• R_RISCV_TPREL_I
  TP-relative TLS LE load (I-Type)
• R_RISCV_TPREL_LO12_I
  TLS LE thread offset: %tprel_lo(symbol) (I-Type)
• R_RISCV_TPREL_LO12_S
  TLS LE thread offset: %tprel_lo(symbol) (S-Type)
• R_RISCV_TPREL_S
  TP-relative TLS LE store (S-Type)
• R_X86_64_8
  Direct 8 bit sign extended.
• R_X86_64_16
  Direct 16 bit zero extended.
• R_X86_64_32
  Direct 32 bit zero extended.
• R_X86_64_32S
  Direct 32 bit sign extended.
• R_X86_64_64
  Direct 64 bit.
• R_X86_64_COPY
  Copy symbol at runtime.
• R_X86_64_DTPMOD64
  ID of module containing symbol.
• R_X86_64_DTPOFF32
  Offset in TLS block.
• R_X86_64_DTPOFF64
  Offset in module’s TLS block.
• R_X86_64_GLOB_DAT
  Create GOT entry.
• R_X86_64_GOT32
  32 bit GOT entry.
• R_X86_64_GOT64
  64-bit GOT entry offset.
• R_X86_64_GOTOFF64
  64 bit offset to GOT.
• R_X86_64_GOTPC32
  32 bit signed pc relative offset to GOT.
• R_X86_64_GOTPC32_TLSDESC
  GOT offset for TLS descriptor..
• R_X86_64_GOTPC64
  64-bit PC relative offset to GOT.
• R_X86_64_GOTPCREL
  32 bit signed PC relative offset to GOT.
• R_X86_64_GOTPCREL64
  64-bit PC relative offset to GOT entry.
• R_X86_64_GOTPCRELX
  Load from 32 bit signed pc relative offset to GOT entry without REX prefix, relaxable.
• R_X86_64_GOTPLT64
  like GOT64, says PLT entry needed.
• R_X86_64_GOTTPOFF
  32 bit signed PC relative offset to GOT entry for IE symbol.
• R_X86_64_IRELATIVE
  Adjust indirectly by program base.
• R_X86_64_JUMP_SLOT
  Create PLT entry.
• R_X86_64_NONE
  No reloc.
• R_X86_64_NUM
• R_X86_64_PC8
  8 bit sign extended pc relative.
• R_X86_64_PC16
  16 bit sign extended pc relative.
• R_X86_64_PC32
  PC relative 32 bit signed.
• R_X86_64_PC64
  PC relative 64 bit.
• R_X86_64_PLT32
  32 bit PLT address.
• R_X86_64_PLTOFF64
  64-bit GOT relative offset to PLT entry.
• R_X86_64_RELATIVE
  Adjust by program base.
• R_X86_64_RELATIVE64
  64-bit adjust by program base.
• R_X86_64_REX_GOTPCRELX
  Load from 32 bit signed pc relative offset to GOT entry with REX prefix, relaxable.
• R_X86_64_SIZE32
  Size of symbol plus 32-bit addend.
• R_X86_64_SIZE64
  Size of symbol plus 64-bit addend.
• R_X86_64_TLSDESC
  TLS descriptor..
• R_X86_64_TLSDESC_CALL
  Marker for call through TLS descriptor..
• R_X86_64_TLSGD
  32 bit signed PC relative offset to two GOT entries for GD symbol.
• R_X86_64_TLSLD
  32 bit signed PC relative offset to two GOT entries for LD symbol.
• R_X86_64_TPOFF32
  Offset in initial TLS block.
• R_X86_64_TPOFF64
  Offset in initial TLS block.

Functions

• r_to_str