## Test that we are able to print dynamic relocations with --dyn-relocations. ## Check what we print when there are no dynamic relocations in an object. # RUN: yaml2obj --docnum=1 %s -o %t1 # RUN: llvm-readobj --dyn-relocations %t1 2>&1 | FileCheck %s --check-prefix=LLVM-NONE # RUN: llvm-readelf --dyn-relocations %t1 2>&1 | FileCheck %s --implicit-check-not={{.}} --allow-empty # LLVM-NONE: Dynamic Relocations { # LLVM-NONE-NEXT: } # LLVM-NONE-NOT: {{.}} --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN ## Check that we dump all possbile dynamic relocation sections. # RUN: yaml2obj --docnum=2 %s -o %t2.1 # RUN: llvm-readobj --dyn-relocations %t2.1 2>&1 | \ # RUN: FileCheck %s --implicit-check-not=warning: --check-prefix=LLVM-RELOCS # RUN: llvm-readelf --dyn-relocations %t2.1 2>&1 | \ # RUN: FileCheck %s --implicit-check-not=warning: --strict-whitespace \ # RUN: --match-full-lines --check-prefixes=GNU-RELOCS,GNU-PLTREL ## 7 == DT_RELA. # RUN: yaml2obj --docnum=2 %s -DDTPLTREL=7 -DPLTTYPE=SHT_RELA -DPLTRELSZ=0x18 -o %t2.2 # RUN: llvm-readobj --dyn-relocations %t2.2 2>&1 | \ # RUN: FileCheck %s --implicit-check-not=warning: --check-prefix=LLVM-RELOCS # RUN: llvm-readelf --dyn-relocations %t2.2 2>&1 | \ # RUN: FileCheck %s --implicit-check-not=warning: --strict-whitespace \ # RUN: --match-full-lines --check-prefixes=GNU-RELOCS,GNU-PLTRELA # LLVM-RELOCS: Dynamic Relocations { # LLVM-RELOCS-NEXT: 0x1 R_X86_64_NONE foo 0x0 # LLVM-RELOCS-NEXT: 0x2 R_X86_64_NONE foo 0x0 # LLVM-RELOCS-NEXT: 0x4 R_X86_64_RELATIVE - 0x0 # LLVM-RELOCS-NEXT: 0x8 R_X86_64_NONE foo 0x0 # LLVM-RELOCS-NEXT: } # GNU-RELOCS:'RELA' relocation section at offset 0x78 contains 24 bytes: # GNU-RELOCS-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend # GNU-RELOCS-NEXT:0000000000000001 0000000100000000 R_X86_64_NONE 0000000000000000 foo + 0 # GNU-RELOCS-EMPTY: # GNU-RELOCS-NEXT:'REL' relocation section at offset 0x90 contains 16 bytes: # GNU-RELOCS-NEXT: Offset Info Type Symbol's Value Symbol's Name # GNU-RELOCS-NEXT:0000000000000002 0000000100000000 R_X86_64_NONE 0000000000000000 foo # GNU-RELOCS-EMPTY: # GNU-RELOCS-NEXT:'RELR' relocation section at offset 0xa0 contains 8 bytes: # GNU-RELOCS-NEXT: Offset Info Type Symbol's Value Symbol's Name # GNU-RELOCS-NEXT:0000000000000004 0000000000000008 R_X86_64_RELATIVE {{$}} # GNU-RELOCS-EMPTY: # GNU-PLTREL-NEXT:'PLT' relocation section at offset 0xa8 contains 16 bytes: # GNU-PLTREL-NEXT: Offset Info Type Symbol's Value Symbol's Name # GNU-PLTREL-NEXT:0000000000000008 0000000100000000 R_X86_64_NONE 0000000000000000 foo # GNU-PLTRELA-NEXT:'PLT' relocation section at offset 0xa8 contains 24 bytes: # GNU-PLTRELA-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend # GNU-PLTRELA-NEXT:0000000000000008 0000000100000000 R_X86_64_NONE 0000000000000000 foo + 0 # GNU-RELOCS-EMPTY: # GNU-RELOCS-NOT:{{.}} --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_DYN Machine: EM_X86_64 Sections: - Name: .rela.dyn Type: SHT_RELA Relocations: - Type: R_X86_64_NONE Offset: 0x1 Symbol: foo - Name: .rel.dyn Type: SHT_REL Relocations: - Type: R_X86_64_NONE Offset: 0x2 Symbol: foo - Name: .relr.dyn Type: SHT_RELR Flags: [ SHF_ALLOC ] Entries: [ 0x0000000000000004 ] - Name: .plt Type: [[PLTTYPE=SHT_REL]] Relocations: - Type: R_X86_64_NONE Offset: 0x8 Symbol: foo - Name: .dynamic Type: SHT_DYNAMIC Entries: - Tag: DT_RELA Value: 0x0 - Tag: DT_RELASZ Value: 0x18 - Tag: DT_RELAENT Value: 0x18 ## 0x18 == offset of .rel.dyn in the segment. - Tag: DT_REL Value: 0x18 - Tag: DT_RELSZ Value: 0x10 - Tag: DT_RELENT Value: 0x10 ## 0x28 == offset of .relr.dyn section in the segment. - Tag: DT_RELR Value: 0x28 - Tag: DT_RELRSZ Value: 0x8 - Tag: DT_RELRENT Value: 0x8 ## 0x30 == offset of .plt section in the segment. - Tag: DT_JMPREL Value: 0x30 - Tag: DT_PLTREL Value: [[DTPLTREL=17]] ## 17 == DT_REL - Tag: DT_PLTRELSZ Value: [[PLTRELSZ=0x10]] - Tag: DT_NULL Value: 0x0 Symbols: - Name: foo DynamicSymbols: - Name: foo ProgramHeaders: - Type: PT_LOAD FirstSec: .rela.dyn LastSec: .dynamic ## Check we report a warning when the value of the DT_PLTREL dynamic tag is invalid. ## We currently accept DT_RELA(7) and DT_REL(17) values. This test case uses 0xff. # RUN: yaml2obj --docnum=2 %s -DDTPLTREL=0xFF -o %t3 # RUN: llvm-readobj --dyn-relocations %t3 2>&1 | \ # RUN: FileCheck %s -DFILE=%t3 --implicit-check-not=warning: --check-prefix=PLTRELUNKNOWN-LLVM # RUN: llvm-readelf --dyn-relocations %t3 2>&1 | \ # RUN: FileCheck %s -DFILE=%t3 --implicit-check-not=warning: --check-prefix=PLTRELUNKNOWN-GNU # PLTRELUNKNOWN-LLVM: warning: '[[FILE]]': unknown DT_PLTREL value of 255 # PLTRELUNKNOWN-LLVM: Dynamic Relocations { # PLTRELUNKNOWN-LLVM-NEXT: 0x1 R_X86_64_NONE foo 0x0 # PLTRELUNKNOWN-LLVM-NEXT: 0x2 R_X86_64_NONE foo 0x0 # PLTRELUNKNOWN-LLVM-NEXT: 0x4 R_X86_64_RELATIVE - 0x0 # PLTRELUNKNOWN-LLVM-NEXT: warning: '[[FILE]]': invalid DT_PLTRELSZ value (0x10) or PLTREL entry size (0x0) # PLTRELUNKNOWN-LLVM-NEXT: } # PLTRELUNKNOWN-GNU: warning: '[[FILE]]': unknown DT_PLTREL value of 255 # PLTRELUNKNOWN-GNU-EMPTY: # PLTRELUNKNOWN-GNU-NEXT: 'RELA' relocation section at offset 0x78 contains 24 bytes: # PLTRELUNKNOWN-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name + Addend # PLTRELUNKNOWN-GNU-NEXT: 0000000000000001 0000000100000000 R_X86_64_NONE 0000000000000000 foo + 0 # PLTRELUNKNOWN-GNU-EMPTY: # PLTRELUNKNOWN-GNU-NEXT: 'REL' relocation section at offset 0x90 contains 16 bytes: # PLTRELUNKNOWN-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name # PLTRELUNKNOWN-GNU-NEXT: 0000000000000002 0000000100000000 R_X86_64_NONE 0000000000000000 foo # PLTRELUNKNOWN-GNU-EMPTY: # PLTRELUNKNOWN-GNU-NEXT: 'RELR' relocation section at offset 0xa0 contains 8 bytes: # PLTRELUNKNOWN-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name # PLTRELUNKNOWN-GNU-NEXT: 0000000000000004 0000000000000008 R_X86_64_RELATIVE # PLTRELUNKNOWN-GNU-EMPTY: # PLTRELUNKNOWN-GNU-NEXT: 'PLT' relocation section at offset 0xa8 contains 16 bytes: # PLTRELUNKNOWN-GNU-NEXT: Offset Info Type Symbol's Value Symbol's Name # PLTRELUNKNOWN-GNU-NEXT: warning: '[[FILE]]': invalid DT_PLTRELSZ value (0x10) or PLTREL entry size (0x0)