a7a447be0f
Imagine we have a YAML declaration of few sections: `foo1`, `<unnamed 2>`, `foo3`, `foo4`. To put them into segment we can do (1*): ``` Sections: - Section: foo1 - Section: foo4 ``` or we can use (2*): ``` Sections: - Section: foo1 - Section: foo3 - Section: foo4 ``` or (3*) : ``` Sections: - Section: foo1 ## "(index 2)" here is a name that we automatically created for a unnamed section. - Section: (index 2) - Section: foo3 - Section: foo4 ``` It looks really confusing that we don't have to list all of sections. At first I've tried to make this rule stricter and report an error when there is a gap (i.e. when a section is included into segment, but not listed explicitly). This did not work perfect, because such approach conflicts with unnamed sections/fills (see (3*)). This patch drops "Sections" key and introduces 2 keys instead: `FirstSec` and `LastSec`. Both are optional. Differential revision: https://reviews.llvm.org/D90458
50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
# RUN: yaml2obj -D PADDR=1 %s -o %t1
|
|
# RUN: llvm-objcopy -O binary %t1 %t1.out
|
|
# RUN: od -t x2 -v %t1.out | FileCheck %s --ignore-case
|
|
# RUN: wc -c < %t1.out | FileCheck %s --check-prefix=SIZE
|
|
|
|
## When all p_paddr fields are 0, GNU objcopy resets LMA to VMA
|
|
## and gives a different output.
|
|
## https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=6ffd79000b45e77b3625143932ffbf781b6aecab
|
|
## We don't implement this special rule. The p_paddr=0 output is the same as
|
|
## the p_paddr=1 case.
|
|
# RUN: yaml2obj -D PADDR=0 %s -o %t0
|
|
# RUN: llvm-objcopy -O binary %t0 %t0.out
|
|
# RUN: cmp %t1.out %t0.out
|
|
|
|
!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: 0x0000000000001000
|
|
Content: "c3c3c3c3"
|
|
- Name: .data
|
|
Type: SHT_PROGBITS
|
|
Flags: [ SHF_ALLOC ]
|
|
Address: 0x1004
|
|
AddressAlign: 0x0000000000000004
|
|
Content: "3232"
|
|
ProgramHeaders:
|
|
- Type: PT_LOAD
|
|
Flags: [ PF_X, PF_R ]
|
|
VAddr: 0x1000
|
|
PAddr: [[PADDR]]
|
|
FirstSec: .text
|
|
LastSec: .text
|
|
- Type: PT_LOAD
|
|
Flags: [ PF_R, PF_W ]
|
|
VAddr: 0x1004
|
|
PAddr: [[PADDR]]
|
|
FirstSec: .data
|
|
LastSec: .data
|
|
|
|
# CHECK: 0000000 3232 c3c3
|
|
# SIZE: 4
|