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lib/std/elf: refactor reloc enum values

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This commit is contained in:
Jakub Konka 2024-02-17 13:13:03 +01:00
parent 509c7149b9
commit d1429a8fa9
5 changed files with 356 additions and 357 deletions
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470
lib/std/elf.zig
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@ -1808,426 +1808,426 @@ pub const COMPRESS = enum(u32) {
/// AMD x86-64 relocations. /// AMD x86-64 relocations.
pub const R_X86_64 = enum(u32) { pub const R_X86_64 = enum(u32) {
/// No reloc /// No reloc
R_X86_64_NONE = 0, NONE = 0,
/// Direct 64 bit /// Direct 64 bit
R_X86_64_64 = 1, @"64" = 1,
/// PC relative 32 bit signed /// PC relative 32 bit signed
R_X86_64_PC32 = 2, PC32 = 2,
/// 32 bit GOT entry /// 32 bit GOT entry
R_X86_64_GOT32 = 3, GOT32 = 3,
/// 32 bit PLT address /// 32 bit PLT address
R_X86_64_PLT32 = 4, PLT32 = 4,
/// Copy symbol at runtime /// Copy symbol at runtime
R_X86_64_COPY = 5, COPY = 5,
/// Create GOT entry /// Create GOT entry
R_X86_64_GLOB_DAT = 6, GLOB_DAT = 6,
/// Create PLT entry /// Create PLT entry
R_X86_64_JUMP_SLOT = 7, JUMP_SLOT = 7,
/// Adjust by program base /// Adjust by program base
R_X86_64_RELATIVE = 8, RELATIVE = 8,
/// 32 bit signed PC relative offset to GOT /// 32 bit signed PC relative offset to GOT
R_X86_64_GOTPCREL = 9, GOTPCREL = 9,
/// Direct 32 bit zero extended /// Direct 32 bit zero extended
R_X86_64_32 = 10, @"32" = 10,
/// Direct 32 bit sign extended /// Direct 32 bit sign extended
R_X86_64_32S = 11, @"32S" = 11,
/// Direct 16 bit zero extended /// Direct 16 bit zero extended
R_X86_64_16 = 12, @"16" = 12,
/// 16 bit sign extended pc relative /// 16 bit sign extended pc relative
R_X86_64_PC16 = 13, PC16 = 13,
/// Direct 8 bit sign extended /// Direct 8 bit sign extended
R_X86_64_8 = 14, @"8" = 14,
/// 8 bit sign extended pc relative /// 8 bit sign extended pc relative
R_X86_64_PC8 = 15, PC8 = 15,
/// ID of module containing symbol /// ID of module containing symbol
R_X86_64_DTPMOD64 = 16, DTPMOD64 = 16,
/// Offset in module's TLS block /// Offset in module's TLS block
R_X86_64_DTPOFF64 = 17, DTPOFF64 = 17,
/// Offset in initial TLS block /// Offset in initial TLS block
R_X86_64_TPOFF64 = 18, TPOFF64 = 18,
/// 32 bit signed PC relative offset to two GOT entries for GD symbol /// 32 bit signed PC relative offset to two GOT entries for GD symbol
R_X86_64_TLSGD = 19, TLSGD = 19,
/// 32 bit signed PC relative offset to two GOT entries for LD symbol /// 32 bit signed PC relative offset to two GOT entries for LD symbol
R_X86_64_TLSLD = 20, TLSLD = 20,
/// Offset in TLS block /// Offset in TLS block
R_X86_64_DTPOFF32 = 21, DTPOFF32 = 21,
/// 32 bit signed PC relative offset to GOT entry for IE symbol /// 32 bit signed PC relative offset to GOT entry for IE symbol
R_X86_64_GOTTPOFF = 22, GOTTPOFF = 22,
/// Offset in initial TLS block /// Offset in initial TLS block
R_X86_64_TPOFF32 = 23, TPOFF32 = 23,
/// PC relative 64 bit /// PC relative 64 bit
R_X86_64_PC64 = 24, PC64 = 24,
/// 64 bit offset to GOT /// 64 bit offset to GOT
R_X86_64_GOTOFF64 = 25, GOTOFF64 = 25,
/// 32 bit signed pc relative offset to GOT /// 32 bit signed pc relative offset to GOT
R_X86_64_GOTPC32 = 26, GOTPC32 = 26,
/// 64 bit GOT entry offset /// 64 bit GOT entry offset
R_X86_64_GOT64 = 27, GOT64 = 27,
/// 64 bit PC relative offset to GOT entry /// 64 bit PC relative offset to GOT entry
R_X86_64_GOTPCREL64 = 28, GOTPCREL64 = 28,
/// 64 bit PC relative offset to GOT /// 64 bit PC relative offset to GOT
R_X86_64_GOTPC64 = 29, GOTPC64 = 29,
/// Like GOT64, says PLT entry needed /// Like GOT64, says PLT entry needed
R_X86_64_GOTPLT64 = 30, GOTPLT64 = 30,
/// 64-bit GOT relative offset to PLT entry /// 64-bit GOT relative offset to PLT entry
R_X86_64_PLTOFF64 = 31, PLTOFF64 = 31,
/// Size of symbol plus 32-bit addend /// Size of symbol plus 32-bit addend
R_X86_64_SIZE32 = 32, SIZE32 = 32,
/// Size of symbol plus 64-bit addend /// Size of symbol plus 64-bit addend
R_X86_64_SIZE64 = 33, SIZE64 = 33,
/// GOT offset for TLS descriptor /// GOT offset for TLS descriptor
R_X86_64_GOTPC32_TLSDESC = 34, GOTPC32_TLSDESC = 34,
/// Marker for call through TLS descriptor /// Marker for call through TLS descriptor
R_X86_64_TLSDESC_CALL = 35, TLSDESC_CALL = 35,
/// TLS descriptor /// TLS descriptor
R_X86_64_TLSDESC = 36, TLSDESC = 36,
/// Adjust indirectly by program base /// Adjust indirectly by program base
R_X86_64_IRELATIVE = 37, IRELATIVE = 37,
/// 64-bit adjust by program base /// 64-bit adjust by program base
R_X86_64_RELATIVE64 = 38, RELATIVE64 = 38,
/// 39 Reserved was R_X86_64_PC32_BND /// 39 Reserved was PC32_BND
/// 40 Reserved was R_X86_64_PLT32_BND /// 40 Reserved was PLT32_BND
/// Load from 32 bit signed pc relative offset to GOT entry without REX prefix, relaxable /// Load from 32 bit signed pc relative offset to GOT entry without REX prefix, relaxable
R_X86_64_GOTPCRELX = 41, GOTPCRELX = 41,
/// Load from 32 bit signed PC relative offset to GOT entry with REX prefix, relaxable /// Load from 32 bit signed PC relative offset to GOT entry with REX prefix, relaxable
R_X86_64_REX_GOTPCRELX = 42, REX_GOTPCRELX = 42,
_, _,
}; };
/// AArch64 relocs. /// AArch64 relocs.
pub const R_AARCH64 = enum(u32) { pub const R_AARCH64 = enum(u32) {
/// No relocation. /// No relocation.
R_AARCH64_NONE = 0, NONE = 0,
/// ILP32 AArch64 relocs. /// ILP32 AArch64 relocs.
/// Direct 32 bit. /// Direct 32 bit.
R_AARCH64_P32_ABS32 = 1, P32_ABS32 = 1,
/// Copy symbol at runtime. /// Copy symbol at runtime.
R_AARCH64_P32_COPY = 180, P32_COPY = 180,
/// Create GOT entry. /// Create GOT entry.
R_AARCH64_P32_GLOB_DAT = 181, P32_GLOB_DAT = 181,
/// Create PLT entry. /// Create PLT entry.
R_AARCH64_P32_JUMP_SLOT = 182, P32_JUMP_SLOT = 182,
/// Adjust by program base. /// Adjust by program base.
R_AARCH64_P32_RELATIVE = 183, P32_RELATIVE = 183,
/// Module number, 32 bit. /// Module number, 32 bit.
R_AARCH64_P32_TLS_DTPMOD = 184, P32_TLS_DTPMOD = 184,
/// Module-relative offset, 32 bit. /// Module-relative offset, 32 bit.
R_AARCH64_P32_TLS_DTPREL = 185, P32_TLS_DTPREL = 185,
/// TP-relative offset, 32 bit. /// TP-relative offset, 32 bit.
R_AARCH64_P32_TLS_TPREL = 186, P32_TLS_TPREL = 186,
/// TLS Descriptor. /// TLS Descriptor.
R_AARCH64_P32_TLSDESC = 187, P32_TLSDESC = 187,
/// STT_GNU_IFUNC relocation. /// STT_GNU_IFUNC relocation.
R_AARCH64_P32_IRELATIVE = 188, P32_IRELATIVE = 188,
/// LP64 AArch64 relocs. /// LP64 AArch64 relocs.
/// Direct 64 bit. /// Direct 64 bit.
R_AARCH64_ABS64 = 257, ABS64 = 257,
/// Direct 32 bit. /// Direct 32 bit.
R_AARCH64_ABS32 = 258, ABS32 = 258,
/// Direct 16-bit. /// Direct 16-bit.
R_AARCH64_ABS16 = 259, ABS16 = 259,
/// PC-relative 64-bit. /// PC-relative 64-bit.
R_AARCH64_PREL64 = 260, PREL64 = 260,
/// PC-relative 32-bit. /// PC-relative 32-bit.
R_AARCH64_PREL32 = 261, PREL32 = 261,
/// PC-relative 16-bit. /// PC-relative 16-bit.
R_AARCH64_PREL16 = 262, PREL16 = 262,
/// Dir. MOVZ imm. from bits 15:0. /// Dir. MOVZ imm. from bits 15:0.
R_AARCH64_MOVW_UABS_G0 = 263, MOVW_UABS_G0 = 263,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_UABS_G0_NC = 264, MOVW_UABS_G0_NC = 264,
/// Dir. MOVZ imm. from bits 31:16. /// Dir. MOVZ imm. from bits 31:16.
R_AARCH64_MOVW_UABS_G1 = 265, MOVW_UABS_G1 = 265,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_UABS_G1_NC = 266, MOVW_UABS_G1_NC = 266,
/// Dir. MOVZ imm. from bits 47:32. /// Dir. MOVZ imm. from bits 47:32.
R_AARCH64_MOVW_UABS_G2 = 267, MOVW_UABS_G2 = 267,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_UABS_G2_NC = 268, MOVW_UABS_G2_NC = 268,
/// Dir. MOV{K,Z} imm. from 63:48. /// Dir. MOV{K,Z} imm. from 63:48.
R_AARCH64_MOVW_UABS_G3 = 269, MOVW_UABS_G3 = 269,
/// Dir. MOV{N,Z} imm. from 15:0. /// Dir. MOV{N,Z} imm. from 15:0.
R_AARCH64_MOVW_SABS_G0 = 270, MOVW_SABS_G0 = 270,
/// Dir. MOV{N,Z} imm. from 31:16. /// Dir. MOV{N,Z} imm. from 31:16.
R_AARCH64_MOVW_SABS_G1 = 271, MOVW_SABS_G1 = 271,
/// Dir. MOV{N,Z} imm. from 47:32. /// Dir. MOV{N,Z} imm. from 47:32.
R_AARCH64_MOVW_SABS_G2 = 272, MOVW_SABS_G2 = 272,
/// PC-rel. LD imm. from bits 20:2. /// PC-rel. LD imm. from bits 20:2.
R_AARCH64_LD_PREL_LO19 = 273, LD_PREL_LO19 = 273,
/// PC-rel. ADR imm. from bits 20:0. /// PC-rel. ADR imm. from bits 20:0.
R_AARCH64_ADR_PREL_LO21 = 274, ADR_PREL_LO21 = 274,
/// Page-rel. ADRP imm. from 32:12. /// Page-rel. ADRP imm. from 32:12.
R_AARCH64_ADR_PREL_PG_HI21 = 275, ADR_PREL_PG_HI21 = 275,
/// Likewise; no overflow check. /// Likewise; no overflow check.
R_AARCH64_ADR_PREL_PG_HI21_NC = 276, ADR_PREL_PG_HI21_NC = 276,
/// Dir. ADD imm. from bits 11:0. /// Dir. ADD imm. from bits 11:0.
R_AARCH64_ADD_ABS_LO12_NC = 277, ADD_ABS_LO12_NC = 277,
/// Likewise for LD/ST; no check. /// Likewise for LD/ST; no check.
R_AARCH64_LDST8_ABS_LO12_NC = 278, LDST8_ABS_LO12_NC = 278,
/// PC-rel. TBZ/TBNZ imm. from 15:2. /// PC-rel. TBZ/TBNZ imm. from 15:2.
R_AARCH64_TSTBR14 = 279, TSTBR14 = 279,
/// PC-rel. cond. br. imm. from 20:2. /// PC-rel. cond. br. imm. from 20:2.
R_AARCH64_CONDBR19 = 280, CONDBR19 = 280,
/// PC-rel. B imm. from bits 27:2. /// PC-rel. B imm. from bits 27:2.
R_AARCH64_JUMP26 = 282, JUMP26 = 282,
/// Likewise for CALL. /// Likewise for CALL.
R_AARCH64_CALL26 = 283, CALL26 = 283,
/// Dir. ADD imm. from bits 11:1. /// Dir. ADD imm. from bits 11:1.
R_AARCH64_LDST16_ABS_LO12_NC = 284, LDST16_ABS_LO12_NC = 284,
/// Likewise for bits 11:2. /// Likewise for bits 11:2.
R_AARCH64_LDST32_ABS_LO12_NC = 285, LDST32_ABS_LO12_NC = 285,
/// Likewise for bits 11:3. /// Likewise for bits 11:3.
R_AARCH64_LDST64_ABS_LO12_NC = 286, LDST64_ABS_LO12_NC = 286,
/// PC-rel. MOV{N,Z} imm. from 15:0. /// PC-rel. MOV{N,Z} imm. from 15:0.
R_AARCH64_MOVW_PREL_G0 = 287, MOVW_PREL_G0 = 287,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_PREL_G0_NC = 288, MOVW_PREL_G0_NC = 288,
/// PC-rel. MOV{N,Z} imm. from 31:16. /// PC-rel. MOV{N,Z} imm. from 31:16.
R_AARCH64_MOVW_PREL_G1 = 289, MOVW_PREL_G1 = 289,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_PREL_G1_NC = 290, MOVW_PREL_G1_NC = 290,
/// PC-rel. MOV{N,Z} imm. from 47:32. /// PC-rel. MOV{N,Z} imm. from 47:32.
R_AARCH64_MOVW_PREL_G2 = 291, MOVW_PREL_G2 = 291,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_PREL_G2_NC = 292, MOVW_PREL_G2_NC = 292,
/// PC-rel. MOV{N,Z} imm. from 63:48. /// PC-rel. MOV{N,Z} imm. from 63:48.
R_AARCH64_MOVW_PREL_G3 = 293, MOVW_PREL_G3 = 293,
/// Dir. ADD imm. from bits 11:4. /// Dir. ADD imm. from bits 11:4.
R_AARCH64_LDST128_ABS_LO12_NC = 299, LDST128_ABS_LO12_NC = 299,
/// GOT-rel. off. MOV{N,Z} imm. 15:0. /// GOT-rel. off. MOV{N,Z} imm. 15:0.
R_AARCH64_MOVW_GOTOFF_G0 = 300, MOVW_GOTOFF_G0 = 300,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_GOTOFF_G0_NC = 301, MOVW_GOTOFF_G0_NC = 301,
/// GOT-rel. o. MOV{N,Z} imm. 31:16. /// GOT-rel. o. MOV{N,Z} imm. 31:16.
R_AARCH64_MOVW_GOTOFF_G1 = 302, MOVW_GOTOFF_G1 = 302,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_GOTOFF_G1_NC = 303, MOVW_GOTOFF_G1_NC = 303,
/// GOT-rel. o. MOV{N,Z} imm. 47:32. /// GOT-rel. o. MOV{N,Z} imm. 47:32.
R_AARCH64_MOVW_GOTOFF_G2 = 304, MOVW_GOTOFF_G2 = 304,
/// Likewise for MOVK; no check. /// Likewise for MOVK; no check.
R_AARCH64_MOVW_GOTOFF_G2_NC = 305, MOVW_GOTOFF_G2_NC = 305,
/// GOT-rel. o. MOV{N,Z} imm. 63:48. /// GOT-rel. o. MOV{N,Z} imm. 63:48.
R_AARCH64_MOVW_GOTOFF_G3 = 306, MOVW_GOTOFF_G3 = 306,
/// GOT-relative 64-bit. /// GOT-relative 64-bit.
R_AARCH64_GOTREL64 = 307, GOTREL64 = 307,
/// GOT-relative 32-bit. /// GOT-relative 32-bit.
R_AARCH64_GOTREL32 = 308, GOTREL32 = 308,
/// PC-rel. GOT off. load imm. 20:2. /// PC-rel. GOT off. load imm. 20:2.
R_AARCH64_GOT_LD_PREL19 = 309, GOT_LD_PREL19 = 309,
/// GOT-rel. off. LD/ST imm. 14:3. /// GOT-rel. off. LD/ST imm. 14:3.
R_AARCH64_LD64_GOTOFF_LO15 = 310, LD64_GOTOFF_LO15 = 310,
/// P-page-rel. GOT off. ADRP 32:12. /// P-page-rel. GOT off. ADRP 32:12.
R_AARCH64_ADR_GOT_PAGE = 311, ADR_GOT_PAGE = 311,
/// Dir. GOT off. LD/ST imm. 11:3. /// Dir. GOT off. LD/ST imm. 11:3.
R_AARCH64_LD64_GOT_LO12_NC = 312, LD64_GOT_LO12_NC = 312,
/// GOT-page-rel. GOT off. LD/ST 14:3 /// GOT-page-rel. GOT off. LD/ST 14:3
R_AARCH64_LD64_GOTPAGE_LO15 = 313, LD64_GOTPAGE_LO15 = 313,
/// PC-relative ADR imm. 20:0. /// PC-relative ADR imm. 20:0.
R_AARCH64_TLSGD_ADR_PREL21 = 512, TLSGD_ADR_PREL21 = 512,
/// page-rel. ADRP imm. 32:12. /// page-rel. ADRP imm. 32:12.
R_AARCH64_TLSGD_ADR_PAGE21 = 513, TLSGD_ADR_PAGE21 = 513,
/// direct ADD imm. from 11:0. /// direct ADD imm. from 11:0.
R_AARCH64_TLSGD_ADD_LO12_NC = 514, TLSGD_ADD_LO12_NC = 514,
/// GOT-rel. MOV{N,Z} 31:16. /// GOT-rel. MOV{N,Z} 31:16.
R_AARCH64_TLSGD_MOVW_G1 = 515, TLSGD_MOVW_G1 = 515,
/// GOT-rel. MOVK imm. 15:0. /// GOT-rel. MOVK imm. 15:0.
R_AARCH64_TLSGD_MOVW_G0_NC = 516, TLSGD_MOVW_G0_NC = 516,
/// Like 512; local dynamic model. /// Like 512; local dynamic model.
R_AARCH64_TLSLD_ADR_PREL21 = 517, TLSLD_ADR_PREL21 = 517,
/// Like 513; local dynamic model. /// Like 513; local dynamic model.
R_AARCH64_TLSLD_ADR_PAGE21 = 518, TLSLD_ADR_PAGE21 = 518,
/// Like 514; local dynamic model. /// Like 514; local dynamic model.
R_AARCH64_TLSLD_ADD_LO12_NC = 519, TLSLD_ADD_LO12_NC = 519,
/// Like 515; local dynamic model. /// Like 515; local dynamic model.
R_AARCH64_TLSLD_MOVW_G1 = 520, TLSLD_MOVW_G1 = 520,
/// Like 516; local dynamic model. /// Like 516; local dynamic model.
R_AARCH64_TLSLD_MOVW_G0_NC = 521, TLSLD_MOVW_G0_NC = 521,
/// TLS PC-rel. load imm. 20:2. /// TLS PC-rel. load imm. 20:2.
R_AARCH64_TLSLD_LD_PREL19 = 522, TLSLD_LD_PREL19 = 522,
/// TLS DTP-rel. MOV{N,Z} 47:32. /// TLS DTP-rel. MOV{N,Z} 47:32.
R_AARCH64_TLSLD_MOVW_DTPREL_G2 = 523, TLSLD_MOVW_DTPREL_G2 = 523,
/// TLS DTP-rel. MOV{N,Z} 31:16. /// TLS DTP-rel. MOV{N,Z} 31:16.
R_AARCH64_TLSLD_MOVW_DTPREL_G1 = 524, TLSLD_MOVW_DTPREL_G1 = 524,
/// Likewise; MOVK; no check. /// Likewise; MOVK; no check.
R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC = 525, TLSLD_MOVW_DTPREL_G1_NC = 525,
/// TLS DTP-rel. MOV{N,Z} 15:0. /// TLS DTP-rel. MOV{N,Z} 15:0.
R_AARCH64_TLSLD_MOVW_DTPREL_G0 = 526, TLSLD_MOVW_DTPREL_G0 = 526,
/// Likewise; MOVK; no check. /// Likewise; MOVK; no check.
R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC = 527, TLSLD_MOVW_DTPREL_G0_NC = 527,
/// DTP-rel. ADD imm. from 23:12. /// DTP-rel. ADD imm. from 23:12.
R_AARCH64_TLSLD_ADD_DTPREL_HI12 = 528, TLSLD_ADD_DTPREL_HI12 = 528,
/// DTP-rel. ADD imm. from 11:0. /// DTP-rel. ADD imm. from 11:0.
R_AARCH64_TLSLD_ADD_DTPREL_LO12 = 529, TLSLD_ADD_DTPREL_LO12 = 529,
/// Likewise; no ovfl. check. /// Likewise; no ovfl. check.
R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC = 530, TLSLD_ADD_DTPREL_LO12_NC = 530,
/// DTP-rel. LD/ST imm. 11:0. /// DTP-rel. LD/ST imm. 11:0.
R_AARCH64_TLSLD_LDST8_DTPREL_LO12 = 531, TLSLD_LDST8_DTPREL_LO12 = 531,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC = 532, TLSLD_LDST8_DTPREL_LO12_NC = 532,
/// DTP-rel. LD/ST imm. 11:1. /// DTP-rel. LD/ST imm. 11:1.
R_AARCH64_TLSLD_LDST16_DTPREL_LO12 = 533, TLSLD_LDST16_DTPREL_LO12 = 533,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC = 534, TLSLD_LDST16_DTPREL_LO12_NC = 534,
/// DTP-rel. LD/ST imm. 11:2. /// DTP-rel. LD/ST imm. 11:2.
R_AARCH64_TLSLD_LDST32_DTPREL_LO12 = 535, TLSLD_LDST32_DTPREL_LO12 = 535,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC = 536, TLSLD_LDST32_DTPREL_LO12_NC = 536,
/// DTP-rel. LD/ST imm. 11:3. /// DTP-rel. LD/ST imm. 11:3.
R_AARCH64_TLSLD_LDST64_DTPREL_LO12 = 537, TLSLD_LDST64_DTPREL_LO12 = 537,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC = 538, TLSLD_LDST64_DTPREL_LO12_NC = 538,
/// GOT-rel. MOV{N,Z} 31:16. /// GOT-rel. MOV{N,Z} 31:16.
R_AARCH64_TLSIE_MOVW_GOTTPREL_G1 = 539, TLSIE_MOVW_GOTTPREL_G1 = 539,
/// GOT-rel. MOVK 15:0. /// GOT-rel. MOVK 15:0.
R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC = 540, TLSIE_MOVW_GOTTPREL_G0_NC = 540,
/// Page-rel. ADRP 32:12. /// Page-rel. ADRP 32:12.
R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 = 541, TLSIE_ADR_GOTTPREL_PAGE21 = 541,
/// Direct LD off. 11:3. /// Direct LD off. 11:3.
R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC = 542, TLSIE_LD64_GOTTPREL_LO12_NC = 542,
/// PC-rel. load imm. 20:2. /// PC-rel. load imm. 20:2.
R_AARCH64_TLSIE_LD_GOTTPREL_PREL19 = 543, TLSIE_LD_GOTTPREL_PREL19 = 543,
/// TLS TP-rel. MOV{N,Z} 47:32. /// TLS TP-rel. MOV{N,Z} 47:32.
R_AARCH64_TLSLE_MOVW_TPREL_G2 = 544, TLSLE_MOVW_TPREL_G2 = 544,
/// TLS TP-rel. MOV{N,Z} 31:16. /// TLS TP-rel. MOV{N,Z} 31:16.
R_AARCH64_TLSLE_MOVW_TPREL_G1 = 545, TLSLE_MOVW_TPREL_G1 = 545,
/// Likewise; MOVK; no check. /// Likewise; MOVK; no check.
R_AARCH64_TLSLE_MOVW_TPREL_G1_NC = 546, TLSLE_MOVW_TPREL_G1_NC = 546,
/// TLS TP-rel. MOV{N,Z} 15:0. /// TLS TP-rel. MOV{N,Z} 15:0.
R_AARCH64_TLSLE_MOVW_TPREL_G0 = 547, TLSLE_MOVW_TPREL_G0 = 547,
/// Likewise; MOVK; no check. /// Likewise; MOVK; no check.
R_AARCH64_TLSLE_MOVW_TPREL_G0_NC = 548, TLSLE_MOVW_TPREL_G0_NC = 548,
/// TP-rel. ADD imm. 23:12. /// TP-rel. ADD imm. 23:12.
R_AARCH64_TLSLE_ADD_TPREL_HI12 = 549, TLSLE_ADD_TPREL_HI12 = 549,
/// TP-rel. ADD imm. 11:0. /// TP-rel. ADD imm. 11:0.
R_AARCH64_TLSLE_ADD_TPREL_LO12 = 550, TLSLE_ADD_TPREL_LO12 = 550,
/// Likewise; no ovfl. check. /// Likewise; no ovfl. check.
R_AARCH64_TLSLE_ADD_TPREL_LO12_NC = 551, TLSLE_ADD_TPREL_LO12_NC = 551,
/// TP-rel. LD/ST off. 11:0. /// TP-rel. LD/ST off. 11:0.
R_AARCH64_TLSLE_LDST8_TPREL_LO12 = 552, TLSLE_LDST8_TPREL_LO12 = 552,
/// Likewise; no ovfl. check. /// Likewise; no ovfl. check.
R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC = 553, TLSLE_LDST8_TPREL_LO12_NC = 553,
/// TP-rel. LD/ST off. 11:1. /// TP-rel. LD/ST off. 11:1.
R_AARCH64_TLSLE_LDST16_TPREL_LO12 = 554, TLSLE_LDST16_TPREL_LO12 = 554,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC = 555, TLSLE_LDST16_TPREL_LO12_NC = 555,
/// TP-rel. LD/ST off. 11:2. /// TP-rel. LD/ST off. 11:2.
R_AARCH64_TLSLE_LDST32_TPREL_LO12 = 556, TLSLE_LDST32_TPREL_LO12 = 556,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC = 557, TLSLE_LDST32_TPREL_LO12_NC = 557,
/// TP-rel. LD/ST off. 11:3. /// TP-rel. LD/ST off. 11:3.
R_AARCH64_TLSLE_LDST64_TPREL_LO12 = 558, TLSLE_LDST64_TPREL_LO12 = 558,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC = 559, TLSLE_LDST64_TPREL_LO12_NC = 559,
/// PC-rel. load immediate 20:2. /// PC-rel. load immediate 20:2.
R_AARCH64_TLSDESC_LD_PREL19 = 560, TLSDESC_LD_PREL19 = 560,
/// PC-rel. ADR immediate 20:0. /// PC-rel. ADR immediate 20:0.
R_AARCH64_TLSDESC_ADR_PREL21 = 561, TLSDESC_ADR_PREL21 = 561,
/// Page-rel. ADRP imm. 32:12. /// Page-rel. ADRP imm. 32:12.
R_AARCH64_TLSDESC_ADR_PAGE21 = 562, TLSDESC_ADR_PAGE21 = 562,
/// Direct LD off. from 11:3. /// Direct LD off. from 11:3.
R_AARCH64_TLSDESC_LD64_LO12 = 563, TLSDESC_LD64_LO12 = 563,
/// Direct ADD imm. from 11:0. /// Direct ADD imm. from 11:0.
R_AARCH64_TLSDESC_ADD_LO12 = 564, TLSDESC_ADD_LO12 = 564,
/// GOT-rel. MOV{N,Z} imm. 31:16. /// GOT-rel. MOV{N,Z} imm. 31:16.
R_AARCH64_TLSDESC_OFF_G1 = 565, TLSDESC_OFF_G1 = 565,
/// GOT-rel. MOVK imm. 15:0; no ck. /// GOT-rel. MOVK imm. 15:0; no ck.
R_AARCH64_TLSDESC_OFF_G0_NC = 566, TLSDESC_OFF_G0_NC = 566,
/// Relax LDR. /// Relax LDR.
R_AARCH64_TLSDESC_LDR = 567, TLSDESC_LDR = 567,
/// Relax ADD. /// Relax ADD.
R_AARCH64_TLSDESC_ADD = 568, TLSDESC_ADD = 568,
/// Relax BLR. /// Relax BLR.
R_AARCH64_TLSDESC_CALL = 569, TLSDESC_CALL = 569,
/// TP-rel. LD/ST off. 11:4. /// TP-rel. LD/ST off. 11:4.
R_AARCH64_TLSLE_LDST128_TPREL_LO12 = 570, TLSLE_LDST128_TPREL_LO12 = 570,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLE_LDST128_TPREL_LO12_NC = 571, TLSLE_LDST128_TPREL_LO12_NC = 571,
/// DTP-rel. LD/ST imm. 11:4. /// DTP-rel. LD/ST imm. 11:4.
R_AARCH64_TLSLD_LDST128_DTPREL_LO12 = 572, TLSLD_LDST128_DTPREL_LO12 = 572,
/// Likewise; no check. /// Likewise; no check.
R_AARCH64_TLSLD_LDST128_DTPREL_LO12_NC = 573, TLSLD_LDST128_DTPREL_LO12_NC = 573,
/// Copy symbol at runtime. /// Copy symbol at runtime.
R_AARCH64_COPY = 1024, COPY = 1024,
/// Create GOT entry. /// Create GOT entry.
R_AARCH64_GLOB_DAT = 1025, GLOB_DAT = 1025,
/// Create PLT entry. /// Create PLT entry.
R_AARCH64_JUMP_SLOT = 1026, JUMP_SLOT = 1026,
/// Adjust by program base. /// Adjust by program base.
R_AARCH64_RELATIVE = 1027, RELATIVE = 1027,
/// Module number, 64 bit. /// Module number, 64 bit.
R_AARCH64_TLS_DTPMOD = 1028, TLS_DTPMOD = 1028,
/// Module-relative offset, 64 bit. /// Module-relative offset, 64 bit.
R_AARCH64_TLS_DTPREL = 1029, TLS_DTPREL = 1029,
/// TP-relative offset, 64 bit. /// TP-relative offset, 64 bit.
R_AARCH64_TLS_TPREL = 1030, TLS_TPREL = 1030,
/// TLS Descriptor. /// TLS Descriptor.
R_AARCH64_TLSDESC = 1031, TLSDESC = 1031,
/// STT_GNU_IFUNC relocation. /// STT_GNU_IFUNC relocation.
R_AARCH64_IRELATIVE = 1032, IRELATIVE = 1032,
_, _,
}; };
/// RISC-V relocations. /// RISC-V relocations.
pub const R_RISCV = enum(u32) { pub const R_RISCV = enum(u32) {
R_RISCV_NONE = 0, NONE = 0,
R_RISCV_32 = 1, @"32" = 1,
R_RISCV_64 = 2, @"64" = 2,
R_RISCV_RELATIVE = 3, RELATIVE = 3,
R_RISCV_COPY = 4, COPY = 4,
R_RISCV_JUMP_SLOT = 5, JUMP_SLOT = 5,
R_RISCV_TLS_DTPMOD32 = 6, TLS_DTPMOD32 = 6,
R_RISCV_TLS_DTPMOD64 = 7, TLS_DTPMOD64 = 7,
R_RISCV_TLS_DTPREL32 = 8, TLS_DTPREL32 = 8,
R_RISCV_TLS_DTPREL64 = 9, TLS_DTPREL64 = 9,
R_RISCV_TLS_TPREL32 = 10, TLS_TPREL32 = 10,
R_RISCV_TLS_TPREL64 = 11, TLS_TPREL64 = 11,
R_RISCV_TLSDESC = 12, TLSDESC = 12,
R_RISCV_BRANCH = 16, BRANCH = 16,
R_RISCV_JAL = 17, JAL = 17,
R_RISCV_CALL = 18, CALL = 18,
R_RISCV_CALL_PLT = 19, CALL_PLT = 19,
R_RISCV_GOT_HI20 = 20, GOT_HI20 = 20,
R_RISCV_TLS_GOT_HI20 = 21, TLS_GOT_HI20 = 21,
R_RISCV_TLS_GD_HI20 = 22, TLS_GD_HI20 = 22,
R_RISCV_PCREL_HI20 = 23, PCREL_HI20 = 23,
R_RISCV_PCREL_LO12_I = 24, PCREL_LO12_I = 24,
R_RISCV_PCREL_LO12_S = 25, PCREL_LO12_S = 25,
R_RISCV_HI20 = 26, HI20 = 26,
R_RISCV_LO12_I = 27, LO12_I = 27,
R_RISCV_LO12_S = 28, LO12_S = 28,
R_RISCV_TPREL_HI20 = 29, TPREL_HI20 = 29,
R_RISCV_TPREL_LO12_I = 30, TPREL_LO12_I = 30,
R_RISCV_TPREL_LO12_S = 31, TPREL_LO12_S = 31,
R_RISCV_TPREL_ADD = 32, TPREL_ADD = 32,
R_RISCV_ADD8 = 33, ADD8 = 33,
R_RISCV_ADD16 = 34, ADD16 = 34,
R_RISCV_ADD32 = 35, ADD32 = 35,
R_RISCV_ADD64 = 36, ADD64 = 36,
R_RISCV_SUB8 = 37, SUB8 = 37,
R_RISCV_SUB16 = 38, SUB16 = 38,
R_RISCV_SUB32 = 39, SUB32 = 39,
R_RISCV_SUB64 = 40, SUB64 = 40,
R_RISCV_GNU_VTINHERIT = 41, GNU_VTINHERIT = 41,
R_RISCV_GNU_VTENTRY = 42, GNU_VTENTRY = 42,
R_RISCV_ALIGN = 43, ALIGN = 43,
R_RISCV_RVC_BRANCH = 44, RVC_BRANCH = 44,
R_RISCV_RVC_JUMP = 45, RVC_JUMP = 45,
R_RISCV_RVC_LUI = 46, RVC_LUI = 46,
R_RISCV_GPREL_I = 47, GPREL_I = 47,
R_RISCV_GPREL_S = 48, GPREL_S = 48,
R_RISCV_TPREL_I = 49, TPREL_I = 49,
R_RISCV_TPREL_S = 50, TPREL_S = 50,
R_RISCV_RELAX = 51, RELAX = 51,
R_RISCV_SUB6 = 52, SUB6 = 52,
R_RISCV_SET6 = 53, SET6 = 53,
R_RISCV_SET8 = 54, SET8 = 54,
R_RISCV_SET16 = 55, SET16 = 55,
R_RISCV_SET32 = 56, SET32 = 56,
R_RISCV_32_PCREL = 57, @"32_PCREL" = 57,
R_RISCV_IRELATIVE = 58, IRELATIVE = 58,
R_RISCV_PLT32 = 59, PLT32 = 59,
R_RISCV_SET_ULEB128 = 60, SET_ULEB128 = 60,
R_RISCV_SUB_ULEB128 = 61, SUB_ULEB128 = 61,
_, _,
}; };

18
src/arch/x86_64/Emit.zig
View file

@ -43,7 +43,7 @@ pub fn emitMir(emit: *Emit) Error!void {
.linker_extern_fn => |symbol| if (emit.lower.bin_file.cast(link.File.Elf)) |elf_file| { .linker_extern_fn => |symbol| if (emit.lower.bin_file.cast(link.File.Elf)) |elf_file| {
// Add relocation to the decl. // Add relocation to the decl.
const atom_ptr = elf_file.symbol(symbol.atom_index).atom(elf_file).?; const atom_ptr = elf_file.symbol(symbol.atom_index).atom(elf_file).?;
const r_type = @intFromEnum(std.elf.R_X86_64.R_X86_64_PLT32); const r_type = @intFromEnum(std.elf.R_X86_64.PLT32);
try atom_ptr.addReloc(elf_file, .{ try atom_ptr.addReloc(elf_file, .{
.r_offset = end_offset - 4, .r_offset = end_offset - 4,
.r_info = (@as(u64, @intCast(symbol.sym_index)) << 32) | r_type, .r_info = (@as(u64, @intCast(symbol.sym_index)) << 32) | r_type,
@ -89,7 +89,7 @@ pub fn emitMir(emit: *Emit) Error!void {
.linker_tlsld => |data| { .linker_tlsld => |data| {
const elf_file = emit.lower.bin_file.cast(link.File.Elf).?; const elf_file = emit.lower.bin_file.cast(link.File.Elf).?;
const atom = elf_file.symbol(data.atom_index).atom(elf_file).?; const atom = elf_file.symbol(data.atom_index).atom(elf_file).?;
const r_type = @intFromEnum(std.elf.R_X86_64.R_X86_64_TLSLD); const r_type = @intFromEnum(std.elf.R_X86_64.TLSLD);
try atom.addReloc(elf_file, .{ try atom.addReloc(elf_file, .{
.r_offset = end_offset - 4, .r_offset = end_offset - 4,
.r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type, .r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type,
@ -99,7 +99,7 @@ pub fn emitMir(emit: *Emit) Error!void {
.linker_dtpoff => |data| { .linker_dtpoff => |data| {
const elf_file = emit.lower.bin_file.cast(link.File.Elf).?; const elf_file = emit.lower.bin_file.cast(link.File.Elf).?;
const atom = elf_file.symbol(data.atom_index).atom(elf_file).?; const atom = elf_file.symbol(data.atom_index).atom(elf_file).?;
const r_type = @intFromEnum(std.elf.R_X86_64.R_X86_64_DTPOFF32); const r_type = @intFromEnum(std.elf.R_X86_64.DTPOFF32);
try atom.addReloc(elf_file, .{ try atom.addReloc(elf_file, .{
.r_offset = end_offset - 4, .r_offset = end_offset - 4,
.r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type, .r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type,
@ -122,9 +122,9 @@ pub fn emitMir(emit: *Emit) Error!void {
const r_type: u32 = if (sym.flags.needs_zig_got and !is_obj_or_static_lib) const r_type: u32 = if (sym.flags.needs_zig_got and !is_obj_or_static_lib)
link.File.Elf.R_ZIG_GOTPCREL link.File.Elf.R_ZIG_GOTPCREL
else if (sym.flags.needs_got) else if (sym.flags.needs_got)
@intFromEnum(std.elf.R_X86_64.R_X86_64_GOTPCREL) @intFromEnum(std.elf.R_X86_64.GOTPCREL)
else else
@intFromEnum(std.elf.R_X86_64.R_X86_64_PC32); @intFromEnum(std.elf.R_X86_64.PC32);
try atom.addReloc(elf_file, .{ try atom.addReloc(elf_file, .{
.r_offset = end_offset - 4, .r_offset = end_offset - 4,
.r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type, .r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type,
@ -132,7 +132,7 @@ pub fn emitMir(emit: *Emit) Error!void {
}); });
} else { } else {
if (lowered_inst.encoding.mnemonic == .call and sym.flags.needs_zig_got and is_obj_or_static_lib) { if (lowered_inst.encoding.mnemonic == .call and sym.flags.needs_zig_got and is_obj_or_static_lib) {
const r_type = @intFromEnum(std.elf.R_X86_64.R_X86_64_PC32); const r_type = @intFromEnum(std.elf.R_X86_64.PC32);
try atom.addReloc(elf_file, .{ try atom.addReloc(elf_file, .{
.r_offset = end_offset - 4, .r_offset = end_offset - 4,
.r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type, .r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type,
@ -142,11 +142,11 @@ pub fn emitMir(emit: *Emit) Error!void {
const r_type: u32 = if (sym.flags.needs_zig_got and !is_obj_or_static_lib) const r_type: u32 = if (sym.flags.needs_zig_got and !is_obj_or_static_lib)
link.File.Elf.R_ZIG_GOT32 link.File.Elf.R_ZIG_GOT32
else if (sym.flags.needs_got) else if (sym.flags.needs_got)
@intFromEnum(std.elf.R_X86_64.R_X86_64_GOT32) @intFromEnum(std.elf.R_X86_64.GOT32)
else if (sym.flags.is_tls) else if (sym.flags.is_tls)
@intFromEnum(std.elf.R_X86_64.R_X86_64_TPOFF32) @intFromEnum(std.elf.R_X86_64.TPOFF32)
else else
@intFromEnum(std.elf.R_X86_64.R_X86_64_32); @intFromEnum(std.elf.R_X86_64.@"32");
try atom.addReloc(elf_file, .{ try atom.addReloc(elf_file, .{
.r_offset = end_offset - 4, .r_offset = end_offset - 4,
.r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type, .r_info = (@as(u64, @intCast(data.sym_index)) << 32) | r_type,

144
src/link/Elf/Atom.zig
View file

@ -386,7 +386,7 @@ pub fn scanRelocsRequiresCode(self: Atom, elf_file: *Elf) bool {
switch (cpu_arch) { switch (cpu_arch) {
.x86_64 => { .x86_64 => {
const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type()); const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type());
if (r_type == .R_X86_64_GOTTPOFF) return true; if (r_type == .GOTTPOFF) return true;
}, },
else => {}, else => {},
} }
@ -841,7 +841,7 @@ const x86_64 = struct {
const rel = rels[i]; const rel = rels[i];
const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type()); const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type());
if (r_type == .R_X86_64_NONE) continue; if (r_type == .NONE) continue;
const r_offset = std.math.cast(usize, rel.r_offset) orelse return error.Overflow; const r_offset = std.math.cast(usize, rel.r_offset) orelse return error.Overflow;
@ -874,40 +874,40 @@ const x86_64 = struct {
// While traversing relocations, mark symbols that require special handling such as // While traversing relocations, mark symbols that require special handling such as
// pointer indirection via GOT, or a stub trampoline via PLT. // pointer indirection via GOT, or a stub trampoline via PLT.
switch (r_type) { switch (r_type) {
.R_X86_64_64 => { .@"64" => {
try atom.scanReloc(symbol, rel, dynAbsRelocAction(symbol, elf_file), elf_file); try atom.scanReloc(symbol, rel, dynAbsRelocAction(symbol, elf_file), elf_file);
}, },
.R_X86_64_32, .@"32",
.R_X86_64_32S, .@"32S",
=> { => {
try atom.scanReloc(symbol, rel, dynAbsRelocAction(symbol, elf_file), elf_file); try atom.scanReloc(symbol, rel, dynAbsRelocAction(symbol, elf_file), elf_file);
}, },
.R_X86_64_GOT32, .GOT32,
.R_X86_64_GOTPC32, .GOTPC32,
.R_X86_64_GOTPC64, .GOTPC64,
.R_X86_64_GOTPCREL, .GOTPCREL,
.R_X86_64_GOTPCREL64, .GOTPCREL64,
.R_X86_64_GOTPCRELX, .GOTPCRELX,
.R_X86_64_REX_GOTPCRELX, .REX_GOTPCRELX,
=> { => {
symbol.flags.needs_got = true; symbol.flags.needs_got = true;
}, },
.R_X86_64_PLT32, .PLT32,
.R_X86_64_PLTOFF64, .PLTOFF64,
=> { => {
if (symbol.flags.import) { if (symbol.flags.import) {
symbol.flags.needs_plt = true; symbol.flags.needs_plt = true;
} }
}, },
.R_X86_64_PC32 => { .PC32 => {
try atom.scanReloc(symbol, rel, pcRelocAction(symbol, elf_file), elf_file); try atom.scanReloc(symbol, rel, pcRelocAction(symbol, elf_file), elf_file);
}, },
.R_X86_64_TLSGD => { .TLSGD => {
// TODO verify followed by appropriate relocation such as PLT32 __tls_get_addr // TODO verify followed by appropriate relocation such as PLT32 __tls_get_addr
if (is_static or (!symbol.flags.import and !is_dyn_lib)) { if (is_static or (!symbol.flags.import and !is_dyn_lib)) {
@ -922,7 +922,7 @@ const x86_64 = struct {
} }
}, },
.R_X86_64_TLSLD => { .TLSLD => {
// TODO verify followed by appropriate relocation such as PLT32 __tls_get_addr // TODO verify followed by appropriate relocation such as PLT32 __tls_get_addr
if (is_static or !is_dyn_lib) { if (is_static or !is_dyn_lib) {
@ -934,7 +934,7 @@ const x86_64 = struct {
} }
}, },
.R_X86_64_GOTTPOFF => { .GOTTPOFF => {
const should_relax = blk: { const should_relax = blk: {
if (is_dyn_lib or symbol.flags.import) break :blk false; if (is_dyn_lib or symbol.flags.import) break :blk false;
if (!x86_64.canRelaxGotTpOff(code.?[r_offset - 3 ..])) break :blk false; if (!x86_64.canRelaxGotTpOff(code.?[r_offset - 3 ..])) break :blk false;
@ -945,25 +945,25 @@ const x86_64 = struct {
} }
}, },
.R_X86_64_GOTPC32_TLSDESC => { .GOTPC32_TLSDESC => {
const should_relax = is_static or (!is_dyn_lib and !symbol.flags.import); const should_relax = is_static or (!is_dyn_lib and !symbol.flags.import);
if (!should_relax) { if (!should_relax) {
symbol.flags.needs_tlsdesc = true; symbol.flags.needs_tlsdesc = true;
} }
}, },
.R_X86_64_TPOFF32, .TPOFF32,
.R_X86_64_TPOFF64, .TPOFF64,
=> { => {
if (is_dyn_lib) try atom.reportPicError(symbol, rel, elf_file); if (is_dyn_lib) try atom.reportPicError(symbol, rel, elf_file);
}, },
.R_X86_64_GOTOFF64, .GOTOFF64,
.R_X86_64_DTPOFF32, .DTPOFF32,
.R_X86_64_DTPOFF64, .DTPOFF64,
.R_X86_64_SIZE32, .SIZE32,
.R_X86_64_SIZE64, .SIZE64,
.R_X86_64_TLSDESC_CALL, .TLSDESC_CALL,
=> {}, => {},
else => |x| switch (@intFromEnum(x)) { else => |x| switch (@intFromEnum(x)) {
@ -990,7 +990,7 @@ const x86_64 = struct {
while (i < rels.len) : (i += 1) { while (i < rels.len) : (i += 1) {
const rel = rels[i]; const rel = rels[i];
const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type()); const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type());
if (r_type == .R_X86_64_NONE) continue; if (r_type == .NONE) continue;
const target = switch (file_ptr) { const target = switch (file_ptr) {
.zig_object => |x| elf_file.symbol(x.symbol(rel.r_sym())), .zig_object => |x| elf_file.symbol(x.symbol(rel.r_sym())),
@ -1040,9 +1040,9 @@ const x86_64 = struct {
try stream.seekTo(r_offset); try stream.seekTo(r_offset);
switch (r_type) { switch (r_type) {
.R_X86_64_NONE => unreachable, .NONE => unreachable,
.R_X86_64_64 => { .@"64" => {
try atom.resolveDynAbsReloc( try atom.resolveDynAbsReloc(
target, target,
rel, rel,
@ -1052,15 +1052,15 @@ const x86_64 = struct {
); );
}, },
.R_X86_64_PLT32, .PLT32,
.R_X86_64_PC32, .PC32,
=> try cwriter.writeInt(i32, @as(i32, @intCast(S + A - P)), .little), => try cwriter.writeInt(i32, @as(i32, @intCast(S + A - P)), .little),
.R_X86_64_GOTPCREL => try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A - P)), .little), .GOTPCREL => try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A - P)), .little),
.R_X86_64_GOTPC32 => try cwriter.writeInt(i32, @as(i32, @intCast(GOT + A - P)), .little), .GOTPC32 => try cwriter.writeInt(i32, @as(i32, @intCast(GOT + A - P)), .little),
.R_X86_64_GOTPC64 => try cwriter.writeInt(i64, GOT + A - P, .little), .GOTPC64 => try cwriter.writeInt(i64, GOT + A - P, .little),
.R_X86_64_GOTPCRELX => { .GOTPCRELX => {
if (!target.flags.import and !target.isIFunc(elf_file) and !target.isAbs(elf_file)) blk: { if (!target.flags.import and !target.isIFunc(elf_file) and !target.isAbs(elf_file)) blk: {
x86_64.relaxGotpcrelx(code[r_offset - 2 ..]) catch break :blk; x86_64.relaxGotpcrelx(code[r_offset - 2 ..]) catch break :blk;
try cwriter.writeInt(i32, @as(i32, @intCast(S + A - P)), .little); try cwriter.writeInt(i32, @as(i32, @intCast(S + A - P)), .little);
@ -1069,7 +1069,7 @@ const x86_64 = struct {
try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A - P)), .little); try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A - P)), .little);
}, },
.R_X86_64_REX_GOTPCRELX => { .REX_GOTPCRELX => {
if (!target.flags.import and !target.isIFunc(elf_file) and !target.isAbs(elf_file)) blk: { if (!target.flags.import and !target.isIFunc(elf_file) and !target.isAbs(elf_file)) blk: {
x86_64.relaxRexGotpcrelx(code[r_offset - 3 ..]) catch break :blk; x86_64.relaxRexGotpcrelx(code[r_offset - 3 ..]) catch break :blk;
try cwriter.writeInt(i32, @as(i32, @intCast(S + A - P)), .little); try cwriter.writeInt(i32, @as(i32, @intCast(S + A - P)), .little);
@ -1078,16 +1078,16 @@ const x86_64 = struct {
try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A - P)), .little); try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A - P)), .little);
}, },
.R_X86_64_32 => try cwriter.writeInt(u32, @as(u32, @truncate(@as(u64, @intCast(S + A)))), .little), .@"32" => try cwriter.writeInt(u32, @as(u32, @truncate(@as(u64, @intCast(S + A)))), .little),
.R_X86_64_32S => try cwriter.writeInt(i32, @as(i32, @truncate(S + A)), .little), .@"32S" => try cwriter.writeInt(i32, @as(i32, @truncate(S + A)), .little),
.R_X86_64_TPOFF32 => try cwriter.writeInt(i32, @as(i32, @truncate(S + A - TP)), .little), .TPOFF32 => try cwriter.writeInt(i32, @as(i32, @truncate(S + A - TP)), .little),
.R_X86_64_TPOFF64 => try cwriter.writeInt(i64, S + A - TP, .little), .TPOFF64 => try cwriter.writeInt(i64, S + A - TP, .little),
.R_X86_64_DTPOFF32 => try cwriter.writeInt(i32, @as(i32, @truncate(S + A - DTP)), .little), .DTPOFF32 => try cwriter.writeInt(i32, @as(i32, @truncate(S + A - DTP)), .little),
.R_X86_64_DTPOFF64 => try cwriter.writeInt(i64, S + A - DTP, .little), .DTPOFF64 => try cwriter.writeInt(i64, S + A - DTP, .little),
.R_X86_64_TLSGD => { .TLSGD => {
if (target.flags.has_tlsgd) { if (target.flags.has_tlsgd) {
const S_ = @as(i64, @intCast(target.tlsGdAddress(elf_file))); const S_ = @as(i64, @intCast(target.tlsGdAddress(elf_file)));
try cwriter.writeInt(i32, @as(i32, @intCast(S_ + A - P)), .little); try cwriter.writeInt(i32, @as(i32, @intCast(S_ + A - P)), .little);
@ -1107,7 +1107,7 @@ const x86_64 = struct {
} }
}, },
.R_X86_64_TLSLD => { .TLSLD => {
if (elf_file.got.tlsld_index) |entry_index| { if (elf_file.got.tlsld_index) |entry_index| {
const tlsld_entry = elf_file.got.entries.items[entry_index]; const tlsld_entry = elf_file.got.entries.items[entry_index];
const S_ = @as(i64, @intCast(tlsld_entry.address(elf_file))); const S_ = @as(i64, @intCast(tlsld_entry.address(elf_file)));
@ -1124,7 +1124,7 @@ const x86_64 = struct {
} }
}, },
.R_X86_64_GOTPC32_TLSDESC => { .GOTPC32_TLSDESC => {
if (target.flags.has_tlsdesc) { if (target.flags.has_tlsdesc) {
const S_ = @as(i64, @intCast(target.tlsDescAddress(elf_file))); const S_ = @as(i64, @intCast(target.tlsDescAddress(elf_file)));
try cwriter.writeInt(i32, @as(i32, @intCast(S_ + A - P)), .little); try cwriter.writeInt(i32, @as(i32, @intCast(S_ + A - P)), .little);
@ -1134,12 +1134,12 @@ const x86_64 = struct {
} }
}, },
.R_X86_64_TLSDESC_CALL => if (!target.flags.has_tlsdesc) { .TLSDESC_CALL => if (!target.flags.has_tlsdesc) {
// call -> nop // call -> nop
try cwriter.writeAll(&.{ 0x66, 0x90 }); try cwriter.writeAll(&.{ 0x66, 0x90 });
}, },
.R_X86_64_GOTTPOFF => { .GOTTPOFF => {
if (target.flags.has_gottp) { if (target.flags.has_gottp) {
const S_ = @as(i64, @intCast(target.gotTpAddress(elf_file))); const S_ = @as(i64, @intCast(target.gotTpAddress(elf_file)));
try cwriter.writeInt(i32, @as(i32, @intCast(S_ + A - P)), .little); try cwriter.writeInt(i32, @as(i32, @intCast(S_ + A - P)), .little);
@ -1149,7 +1149,7 @@ const x86_64 = struct {
} }
}, },
.R_X86_64_GOT32 => try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A)), .little), .GOT32 => try cwriter.writeInt(i32, @as(i32, @intCast(G + GOT + A)), .little),
else => |x| switch (@intFromEnum(x)) { else => |x| switch (@intFromEnum(x)) {
// Zig custom relocations // Zig custom relocations
@ -1172,7 +1172,7 @@ const x86_64 = struct {
while (i < rels.len) : (i += 1) { while (i < rels.len) : (i += 1) {
const rel = rels[i]; const rel = rels[i];
const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type()); const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type());
if (r_type == .R_X86_64_NONE) continue; if (r_type == .NONE) continue;
const r_offset = std.math.cast(usize, rel.r_offset) orelse return error.Overflow; const r_offset = std.math.cast(usize, rel.r_offset) orelse return error.Overflow;
@ -1229,21 +1229,21 @@ const x86_64 = struct {
try stream.seekTo(r_offset); try stream.seekTo(r_offset);
switch (r_type) { switch (r_type) {
.R_X86_64_NONE => unreachable, .NONE => unreachable,
.R_X86_64_8 => try cwriter.writeInt(u8, @as(u8, @bitCast(@as(i8, @intCast(S + A)))), .little), .@"8" => try cwriter.writeInt(u8, @as(u8, @bitCast(@as(i8, @intCast(S + A)))), .little),
.R_X86_64_16 => try cwriter.writeInt(u16, @as(u16, @bitCast(@as(i16, @intCast(S + A)))), .little), .@"16" => try cwriter.writeInt(u16, @as(u16, @bitCast(@as(i16, @intCast(S + A)))), .little),
.R_X86_64_32 => try cwriter.writeInt(u32, @as(u32, @bitCast(@as(i32, @intCast(S + A)))), .little), .@"32" => try cwriter.writeInt(u32, @as(u32, @bitCast(@as(i32, @intCast(S + A)))), .little),
.R_X86_64_32S => try cwriter.writeInt(i32, @as(i32, @intCast(S + A)), .little), .@"32S" => try cwriter.writeInt(i32, @as(i32, @intCast(S + A)), .little),
.R_X86_64_64 => try cwriter.writeInt(i64, S + A, .little), .@"64" => try cwriter.writeInt(i64, S + A, .little),
.R_X86_64_DTPOFF32 => try cwriter.writeInt(i32, @as(i32, @intCast(S + A - DTP)), .little), .DTPOFF32 => try cwriter.writeInt(i32, @as(i32, @intCast(S + A - DTP)), .little),
.R_X86_64_DTPOFF64 => try cwriter.writeInt(i64, S + A - DTP, .little), .DTPOFF64 => try cwriter.writeInt(i64, S + A - DTP, .little),
.R_X86_64_GOTOFF64 => try cwriter.writeInt(i64, S + A - GOT, .little), .GOTOFF64 => try cwriter.writeInt(i64, S + A - GOT, .little),
.R_X86_64_GOTPC64 => try cwriter.writeInt(i64, GOT + A, .little), .GOTPC64 => try cwriter.writeInt(i64, GOT + A, .little),
.R_X86_64_SIZE32 => { .SIZE32 => {
const size = @as(i64, @intCast(target.elfSym(elf_file).st_size)); const size = @as(i64, @intCast(target.elfSym(elf_file).st_size));
try cwriter.writeInt(u32, @as(u32, @bitCast(@as(i32, @intCast(size + A)))), .little); try cwriter.writeInt(u32, @as(u32, @bitCast(@as(i32, @intCast(size + A)))), .little);
}, },
.R_X86_64_SIZE64 => { .SIZE64 => {
const size = @as(i64, @intCast(target.elfSym(elf_file).st_size)); const size = @as(i64, @intCast(target.elfSym(elf_file).st_size));
try cwriter.writeInt(i64, @as(i64, @intCast(size + A)), .little); try cwriter.writeInt(i64, @as(i64, @intCast(size + A)), .little);
}, },
@ -1293,8 +1293,8 @@ const x86_64 = struct {
const writer = stream.writer(); const writer = stream.writer();
const rel: elf.R_X86_64 = @enumFromInt(rels[1].r_type()); const rel: elf.R_X86_64 = @enumFromInt(rels[1].r_type());
switch (rel) { switch (rel) {
.R_X86_64_PC32, .PC32,
.R_X86_64_PLT32, .PLT32,
=> { => {
var insts = [_]u8{ var insts = [_]u8{
0x64, 0x48, 0x8b, 0x04, 0x25, 0, 0, 0, 0, // movq %fs:0,%rax 0x64, 0x48, 0x8b, 0x04, 0x25, 0, 0, 0, 0, // movq %fs:0,%rax
@ -1331,8 +1331,8 @@ const x86_64 = struct {
const writer = stream.writer(); const writer = stream.writer();
const rel: elf.R_X86_64 = @enumFromInt(rels[1].r_type()); const rel: elf.R_X86_64 = @enumFromInt(rels[1].r_type());
switch (rel) { switch (rel) {
.R_X86_64_PC32, .PC32,
.R_X86_64_PLT32, .PLT32,
=> { => {
var insts = [_]u8{ var insts = [_]u8{
0x31, 0xc0, // xor %eax, %eax 0x31, 0xc0, // xor %eax, %eax
@ -1344,8 +1344,8 @@ const x86_64 = struct {
try writer.writeAll(&insts); try writer.writeAll(&insts);
}, },
.R_X86_64_GOTPCREL, .GOTPCREL,
.R_X86_64_GOTPCRELX, .GOTPCRELX,
=> { => {
var insts = [_]u8{ var insts = [_]u8{
0x31, 0xc0, // xor %eax, %eax 0x31, 0xc0, // xor %eax, %eax
@ -1431,10 +1431,10 @@ const x86_64 = struct {
const writer = stream.writer(); const writer = stream.writer();
const rel: elf.R_X86_64 = @enumFromInt(rels[1].r_type()); const rel: elf.R_X86_64 = @enumFromInt(rels[1].r_type());
switch (rel) { switch (rel) {
.R_X86_64_PC32, .PC32,
.R_X86_64_PLT32, .PLT32,
.R_X86_64_GOTPCREL, .GOTPCREL,
.R_X86_64_GOTPCRELX, .GOTPCRELX,
=> { => {
var insts = [_]u8{ var insts = [_]u8{
0x64, 0x48, 0x8b, 0x04, 0x25, 0, 0, 0, 0, // movq %fs:0,%rax 0x64, 0x48, 0x8b, 0x04, 0x25, 0, 0, 0, 0, // movq %fs:0,%rax

8
src/link/Elf/eh_frame.zig
View file

@ -543,10 +543,10 @@ const x86_64 = struct {
fn resolveReloc(rel: elf.Elf64_Rela, source: i64, target: i64, data: []u8) void { fn resolveReloc(rel: elf.Elf64_Rela, source: i64, target: i64, data: []u8) void {
const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type()); const r_type: elf.R_X86_64 = @enumFromInt(rel.r_type());
switch (r_type) { switch (r_type) {
.R_X86_64_32 => std.mem.writeInt(i32, data[0..4], @as(i32, @truncate(target)), .little), .@"32" => std.mem.writeInt(i32, data[0..4], @as(i32, @truncate(target)), .little),
.R_X86_64_64 => std.mem.writeInt(i64, data[0..8], target, .little), .@"64" => std.mem.writeInt(i64, data[0..8], target, .little),
.R_X86_64_PC32 => std.mem.writeInt(i32, data[0..4], @as(i32, @intCast(target - source)), .little), .PC32 => std.mem.writeInt(i32, data[0..4], @as(i32, @intCast(target - source)), .little),
.R_X86_64_PC64 => std.mem.writeInt(i64, data[0..8], target - source, .little), .PC64 => std.mem.writeInt(i64, data[0..8], target - source, .little),
else => unreachable, else => unreachable,
} }
} }

73
src/link/Elf/relocation.zig
View file

@ -30,41 +30,41 @@ fn Table(comptime len: comptime_int, comptime RelType: type, comptime mapping: [
} }
const x86_64_relocs = Table(10, elf.R_X86_64, .{ const x86_64_relocs = Table(10, elf.R_X86_64, .{
.{ .abs, .R_X86_64_64 }, .{ .abs, .@"64" },
.{ .copy, .R_X86_64_COPY }, .{ .copy, .COPY },
.{ .rel, .R_X86_64_RELATIVE }, .{ .rel, .RELATIVE },
.{ .irel, .R_X86_64_IRELATIVE }, .{ .irel, .IRELATIVE },
.{ .glob_dat, .R_X86_64_GLOB_DAT }, .{ .glob_dat, .GLOB_DAT },
.{ .jump_slot, .R_X86_64_JUMP_SLOT }, .{ .jump_slot, .JUMP_SLOT },
.{ .dtpmod, .R_X86_64_DTPMOD64 }, .{ .dtpmod, .DTPMOD64 },
.{ .dtpoff, .R_X86_64_DTPOFF64 }, .{ .dtpoff, .DTPOFF64 },
.{ .tpoff, .R_X86_64_TPOFF64 }, .{ .tpoff, .TPOFF64 },
.{ .tlsdesc, .R_X86_64_TLSDESC }, .{ .tlsdesc, .TLSDESC },
}); });
const aarch64_relocs = Table(10, elf.R_AARCH64, .{ const aarch64_relocs = Table(10, elf.R_AARCH64, .{
.{ .abs, .R_AARCH64_ABS64 }, .{ .abs, .ABS64 },
.{ .copy, .R_AARCH64_COPY }, .{ .copy, .COPY },
.{ .rel, .R_AARCH64_RELATIVE }, .{ .rel, .RELATIVE },
.{ .irel, .R_AARCH64_IRELATIVE }, .{ .irel, .IRELATIVE },
.{ .glob_dat, .R_AARCH64_GLOB_DAT }, .{ .glob_dat, .GLOB_DAT },
.{ .jump_slot, .R_AARCH64_JUMP_SLOT }, .{ .jump_slot, .JUMP_SLOT },
.{ .dtpmod, .R_AARCH64_TLS_DTPMOD }, .{ .dtpmod, .TLS_DTPMOD },
.{ .dtpoff, .R_AARCH64_TLS_DTPREL }, .{ .dtpoff, .TLS_DTPREL },
.{ .tpoff, .R_AARCH64_TLS_TPREL }, .{ .tpoff, .TLS_TPREL },
.{ .tlsdesc, .R_AARCH64_TLSDESC }, .{ .tlsdesc, .TLSDESC },
}); });
const riscv64_relocs = Table(9, elf.R_RISCV, .{ const riscv64_relocs = Table(9, elf.R_RISCV, .{
.{ .abs, .R_RISCV_64 }, .{ .abs, .@"64" },
.{ .copy, .R_RISCV_COPY }, .{ .copy, .COPY },
.{ .rel, .R_RISCV_RELATIVE }, .{ .rel, .RELATIVE },
.{ .irel, .R_RISCV_IRELATIVE }, .{ .irel, .IRELATIVE },
.{ .jump_slot, .R_RISCV_JUMP_SLOT }, .{ .jump_slot, .JUMP_SLOT },
.{ .dtpmod, .R_RISCV_TLS_DTPMOD64 }, .{ .dtpmod, .TLS_DTPMOD64 },
.{ .dtpoff, .R_RISCV_TLS_DTPREL64 }, .{ .dtpoff, .TLS_DTPREL64 },
.{ .tpoff, .R_RISCV_TLS_TPREL64 }, .{ .tpoff, .TLS_TPREL64 },
.{ .tlsdesc, .R_RISCV_TLSDESC }, .{ .tlsdesc, .TLSDESC },
}); });
pub fn decode(r_type: u32, cpu_arch: std.Target.Cpu.Arch) ?Kind { pub fn decode(r_type: u32, cpu_arch: std.Target.Cpu.Arch) ?Kind {
@ -106,17 +106,16 @@ fn formatRelocType(
_ = unused_fmt_string; _ = unused_fmt_string;
_ = options; _ = options;
const r_type = ctx.r_type; const r_type = ctx.r_type;
const str = switch (r_type) { switch (r_type) {
Elf.R_ZIG_GOT32 => "R_ZIG_GOT32", Elf.R_ZIG_GOT32 => try writer.writeAll("R_ZIG_GOT32"),
Elf.R_ZIG_GOTPCREL => "R_ZIG_GOTPCREL", Elf.R_ZIG_GOTPCREL => try writer.writeAll("R_ZIG_GOTPCREL"),
else => switch (ctx.cpu_arch) { else => switch (ctx.cpu_arch) {
.x86_64 => @tagName(@as(elf.R_X86_64, @enumFromInt(r_type))), .x86_64 => try writer.print("R_X86_64_{s}", .{@tagName(@as(elf.R_X86_64, @enumFromInt(r_type)))}),
.aarch64 => @tagName(@as(elf.R_AARCH64, @enumFromInt(r_type))), .aarch64 => try writer.print("R_AARCH64_{s}", .{@tagName(@as(elf.R_AARCH64, @enumFromInt(r_type)))}),
.riscv64 => @tagName(@as(elf.R_RISCV, @enumFromInt(r_type))), .riscv64 => try writer.print("R_RISCV_{s}", .{@tagName(@as(elf.R_RISCV, @enumFromInt(r_type)))}),
else => unreachable, else => unreachable,
}, },
}; }
try writer.print("{s}", .{str});
} }
const assert = std.debug.assert; const assert = std.debug.assert;