## Show that llvm-readobj/llvm-readelf tools sometimes can dump the ## dynamic table when it is not in a PT_DYNAMIC segment. ## Case 1: The dynamic table found using the dynamic program header is corrupted ## (<size of data> % <size of dynamic entry> != 0). So the table is taken ## from the section header. # RUN: yaml2obj --docnum=1 %s -o %t1.o # RUN: llvm-readobj --dynamic-table %t1.o 2>&1 \ # RUN: | FileCheck -DFILE=%t1.o --check-prefixes=WARNING1,LLVM1 %s # RUN: llvm-readelf --dynamic-table %t1.o 2>&1 \ # RUN: | FileCheck -DFILE=%t1.o --check-prefixes=WARNING1,GNU1 %s # WARNING1: warning: '[[FILE]]': SHT_DYNAMIC section with index 1 is not contained within the PT_DYNAMIC segment # WARNING1: warning: '[[FILE]]': invalid PT_DYNAMIC size (0x1){{$}} # WARNING1: warning: '[[FILE]]': SHT_DYNAMIC section header and PT_DYNAMIC program header disagree about the location of the dynamic table # WARNING1: warning: '[[FILE]]': PT_DYNAMIC dynamic table is invalid: SHT_DYNAMIC will be used # LLVM1: DynamicSection [ (2 entries) # LLVM1-NEXT: Tag Type Name/Value # LLVM1-NEXT: 0x0000000000000018 BIND_NOW 0x1 # LLVM1-NEXT: 0x0000000000000000 NULL 0x0 # LLVM1-NEXT: ] # GNU1: Dynamic section at offset 0x{{.*}} contains 2 entries: # GNU1-NEXT: Tag Type Name/Value # GNU1-NEXT: 0x0000000000000018 (BIND_NOW) 0x1 # GNU1-NEXT: 0x0000000000000000 (NULL) 0x0 --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .dynamic Type: SHT_DYNAMIC Flags: [SHF_ALLOC] Address: 0x1000 AddressAlign: 0x1000 Entries: - Tag: DT_BIND_NOW Value: 0x1 - Tag: DT_NULL Value: 0x0 - Name: .text Type: SHT_PROGBITS Flags: [SHF_ALLOC] Address: 0x1100 AddressAlign: 0x100 Content: "00" ProgramHeaders: - Type: PT_LOAD VAddr: 0x1000 FirstSec: .dynamic LastSec: .text - Type: PT_DYNAMIC VAddr: 0x1000 FirstSec: .text LastSec: .text ## Case 2: The dynamic table found using the dynamic program header is different from the ## table found using the section header table. # RUN: yaml2obj --docnum=2 %s -o %t2.o # RUN: llvm-readobj --dynamic-table %t2.o 2>&1 \ # RUN: | FileCheck -DFILE=%t2.o --check-prefixes=WARNING2,LLVM2 %s # RUN: llvm-readelf --dynamic-table %t2.o 2>&1 \ # RUN: | FileCheck -DFILE=%t2.o --check-prefixes=WARNING2,GNU2 %s # WARNING2: warning: '[[FILE]]': SHT_DYNAMIC section with index 1 is not contained within the PT_DYNAMIC segment # WARNING2: warning: '[[FILE]]': SHT_DYNAMIC section header and PT_DYNAMIC program header disagree about the location of the dynamic table # LLVM2: DynamicSection [ (1 entries) # LLVM2-NEXT: Tag Type Name/Value # LLVM2-NEXT: 0x0000000000000000 NULL 0x0 # LLVM2-NEXT: ] # GNU2: Dynamic section at offset 0x{{.*}} contains 1 entries: # GNU2-NEXT: Tag Type Name/Value # GNU2-NEXT: 0x0000000000000000 (NULL) 0x0 --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .dynamic Type: SHT_DYNAMIC Flags: [SHF_ALLOC] Address: 0x1000 AddressAlign: 0x1000 Entries: - Tag: DT_BIND_NOW Value: 0x1 - Tag: DT_NULL Value: 0x0 - Name: .text Type: SHT_PROGBITS Flags: [SHF_ALLOC] Address: 0x1100 AddressAlign: 0x100 Content: "00000000000000000000000000000000" ProgramHeaders: - Type: PT_LOAD VAddr: 0x1000 FirstSec: .dynamic LastSec: .text - Type: PT_DYNAMIC VAddr: 0x1000 FirstSec: .text LastSec: .text ## Case 3: Both dynamic tables found using SHT_DYNAMIC/PT_DYNAMIC are corrupted. # RUN: yaml2obj --docnum=3 %s -o %t3.o # RUN: llvm-readobj --dynamic-table %t3.o 2>&1 \ # RUN: | FileCheck -DFILE=%t3.o --check-prefix=WARNING3 --implicit-check-not="Dynamic" %s # RUN: llvm-readelf --dynamic-table %t3.o 2>&1 \ # RUN: | FileCheck -DFILE=%t3.o --check-prefix=WARNING3 --implicit-check-not="Dynamic" %s # WARNING3: warning: '[[FILE]]': invalid PT_DYNAMIC size (0x1){{$}} # WARNING3: warning: '[[FILE]]': SHT_DYNAMIC section header and PT_DYNAMIC program header disagree about the location of the dynamic table # WARNING3: warning: '[[FILE]]': no valid dynamic table was found --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .dynamic Type: SHT_DYNAMIC Flags: [SHF_ALLOC] Address: 0x1000 AddressAlign: 0x1000 Content: "00" - Name: .text Type: SHT_PROGBITS Flags: [SHF_ALLOC] Address: 0x1100 AddressAlign: 0x100 Content: "00" ProgramHeaders: - Type: PT_LOAD VAddr: 0x1000 FirstSec: .dynamic LastSec: .text - Type: PT_DYNAMIC VAddr: 0x1000 FirstSec: .text LastSec: .text