| ## The computed LMA of a section in a PT_LOAD equals sh_offset-p_offset+p_paddr. |
| ## The byte offset difference between two sections equals the difference between their LMAs. |
| |
| ## Corollary: if two sections are in the same PT_LOAD, the byte offset |
| ## difference equals the difference between their sh_addr fields. |
| |
| # RUN: yaml2obj --docnum=1 %s -o %t1 |
| # RUN: llvm-objcopy -O binary %t1 %t1.out |
| # RUN: od -A x -t x2 %t1.out | FileCheck %s --check-prefix=CHECK1 --ignore-case |
| # RUN: wc -c %t1.out | FileCheck %s --check-prefix=SIZE1 |
| |
| # CHECK1: 000000 c3c3 c3c3 0000 0000 0000 0000 0000 0000 |
| # CHECK1-NEXT: 000010 0000 0000 0000 0000 0000 0000 0000 0000 |
| # CHECK1-NEXT: * |
| # CHECK1-NEXT: 001000 3232 |
| # SIZE1: 4098 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_X86_64 |
| Sections: |
| - Name: .text |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_EXECINSTR ] |
| Address: 0x1000 |
| AddressAlign: 0x1000 |
| Content: "c3c3c3c3" |
| - Name: .data |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_WRITE ] |
| Address: 0x2000 |
| AddressAlign: 0x1000 |
| Content: "3232" |
| ProgramHeaders: |
| - Type: PT_LOAD |
| Flags: [ PF_R, PF_W ] |
| FirstSec: .text |
| LastSec: .data |
| |
| ## The computed LMA of a section not in a PT_LOAD equals its sh_addr. |
| |
| # RUN: yaml2obj --docnum=2 %s -o %t2 |
| # RUN: llvm-objcopy -O binary %t2 %t2.out |
| # RUN: od -A x -t x2 %t2.out | FileCheck %s --check-prefix=CHECK2 --ignore-case |
| # RUN: wc -c %t2.out | FileCheck %s --check-prefix=SIZE2 |
| |
| ## The computed LMA of .data is 0x4000. The minimum LMA of all non-empty sections is 0x1000. |
| ## The content of .data will be written at 0x4000-0x1000 = 0x3000. |
| # CHECK2: 000000 c3c3 c3c3 0000 0000 0000 0000 0000 0000 |
| # CHECK2-NEXT: 000010 0000 0000 0000 0000 0000 0000 0000 0000 |
| # CHECK2-NEXT: * |
| # CHECK2-NEXT: 003000 3232 |
| # SIZE2: 12290 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_X86_64 |
| Sections: |
| - Name: .text |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_EXECINSTR ] |
| ## Not in a PT_LOAD. LMA = sh_addr = 0x1000. |
| Address: 0x1000 |
| AddressAlign: 0x1000 |
| Content: "c3c3c3c3" |
| - Name: .data |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_WRITE ] |
| ## LMA = sh_offset-p_offset+p_paddr = 0x2000-0x2000+0x4000 = 0x4000. |
| Address: 0x2000 |
| AddressAlign: 0x1000 |
| Content: "3232" |
| ProgramHeaders: |
| - Type: PT_LOAD |
| Flags: [ PF_R, PF_W ] |
| VAddr: 0x2000 |
| ## p_vaddr is increased from 0x2000 to 0x4000. |
| PAddr: 0x4000 |
| FirstSec: .data |
| LastSec: .data |
| |
| ## Check that we use sh_offset instead of sh_addr to decide where to write section contents. |
| |
| # RUN: yaml2obj --docnum=3 %s -o %t3 |
| # RUN: llvm-objcopy -O binary %t3 %t3.out |
| # RUN: od -A x -t x2 %t3.out | FileCheck %s --check-prefix=CHECK3 --ignore-case |
| # RUN: wc -c %t3.out | FileCheck %s --check-prefix=SIZE3 |
| |
| ## The minimum LMA of all non-empty sections is 0x1000. |
| ## The content of .data will be written at 0x3000-0x1000 = 0x2000. |
| # CHECK3: 000000 c3c3 c3c3 0000 0000 0000 0000 0000 0000 |
| # CHECK3-NEXT: 000010 0000 0000 0000 0000 0000 0000 0000 0000 |
| # CHECK3-NEXT: * |
| # CHECK3-NEXT: 002000 3232 |
| # SIZE3: 8194 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_X86_64 |
| Sections: |
| - Name: .text |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_EXECINSTR ] |
| ## Not in a PT_LOAD. LMA = sh_addr = 0x1000. |
| Address: 0x1000 |
| AddressAlign: 0x1000 |
| Content: "c3c3c3c3" |
| - Name: .data |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_WRITE ] |
| ## sh_addr is increased from 0x2000 to 0x3000, but it is ignored. |
| ## LMA = sh_offset-p_offset+p_paddr = 0x2000-0x2000+0x3000 = 0x3000. |
| Address: 0x3000 |
| AddressAlign: 0x1000 |
| Content: "3232" |
| ProgramHeaders: |
| - Type: PT_LOAD |
| Flags: [ PF_R, PF_W ] |
| VAddr: 0x3000 |
| FirstSec: .data |
| LastSec: .data |
| |
| ## The first section (.text) is empty. Test that we skip its LMA until the first |
| ## non-empty section, otherwise we would leave a large number of leading zeroes. |
| # RUN: yaml2obj --docnum=4 %s -o %t4 |
| # RUN: llvm-objcopy -O binary %t4 %t4.out |
| # RUN: od -A x -t x2 %t4.out | FileCheck %s --check-prefix=SKIPEMPTY |
| |
| # SKIPEMPTY: 000000 3232 |
| # SKIPEMPTY-NEXT: 000002 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_X86_64 |
| Sections: |
| - Name: .text |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_EXECINSTR ] |
| Address: 0x1000 |
| AddressAlign: 0x1000 |
| - Name: gap |
| Type: Fill |
| Size: 0x1000 |
| - Name: .data |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_WRITE ] |
| Content: "3232" |
| |
| ## The last section (.data) is empty. Test that we stop dumping after the last |
| ## non-empty section, otherwise we would leave a large number of trailing zeroes. |
| # RUN: yaml2obj --docnum=5 %s -o %t5 |
| # RUN: llvm-objcopy -O binary %t5 %t5.out |
| # RUN: od -A x -t x2 %t5.out | FileCheck %s --check-prefix=SKIPEMPTY |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_X86_64 |
| Sections: |
| - Name: .text |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_EXECINSTR ] |
| Address: 0x1000 |
| AddressAlign: 0x1000 |
| Content: "3232" |
| - Name: gap |
| Type: Fill |
| Size: 0xffd |
| - Name: .data |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_WRITE ] |
| |
| ## NOBITS sections should not appear in output. |
| # RUN: yaml2obj --docnum=6 %s -o %t6 |
| # RUN: llvm-objcopy -O binary %t6 %t6.out |
| # RUN: od -A x -t x2 %t6.out | FileCheck %s --check-prefix=SKIPNOBITS --ignore-case |
| |
| # SKIPNOBITS: 000000 c3c3 c3c3 |
| # SKIPNOBITS-NEXT: 000004 |
| |
| --- !ELF |
| FileHeader: |
| Class: ELFCLASS64 |
| Data: ELFDATA2LSB |
| Type: ET_EXEC |
| Machine: EM_X86_64 |
| Sections: |
| - Name: .bss |
| Type: SHT_NOBITS |
| Flags: [ SHF_ALLOC ] |
| Address: 0x1000 |
| AddressAlign: 0x1000 |
| Size: 0x123 |
| - Name: gap |
| Type: Fill |
| Size: 0xffd |
| - Name: .text |
| Type: SHT_PROGBITS |
| Flags: [ SHF_ALLOC, SHF_EXECINSTR ] |
| Address: 0x4000 |
| AddressAlign: 0x1000 |
| Content: "c3c3c3c3" |
