mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-25 01:16:05 +00:00

It turns out that the notes section for corefiles (or really any elf file with multiple notes) is set up in such a way for LLVM formatted output that the JSON equivalent only has the last note since the notes are held in a dictionary with every key being Note. This pr alters the layout for the notes to a list of dictionaries to sidestep this issue for JSON output. Prior to this pr a note section in the output looked like (for LLVM output): ``` Notes [ NoteSection { Name: <?> Offset: 0x2148 Size: 0x1F864 Note { Owner: CORE Data size: 0x150 Type: NT_PRSTATUS (prstatus structure) Description data ( 0000: 06000000 00000000 00000000 06000000 |................| ... ) } Note { Owner: CORE Data size: 0x88 Type: NT_PRPSINFO (prpsinfo structure) Description data ( 0000: 02440000 00000000 04054040 00000000 |.D........@@....| .... ``` But is now: ``` NoteSections [ NoteSection { Name: <?> Offset: 0x2148 Size: 0x1F864 Notes [ { Owner: CORE Data size: 0x150 Type: NT_PRSTATUS (prstatus structure) Description data ( 0000: 06000000 00000000 00000000 06000000 |................| ... ) } { Owner: CORE Data size: 0x88 Type: NT_PRPSINFO (prpsinfo structure) Description data ( 0000: 02440000 00000000 04054040 00000000 |.D........@@....| ... ```
43 lines
1022 B
ArmAsm
43 lines
1022 B
ArmAsm
# REQUIRES: x86
|
|
# RUN: llvm-mc -filetype=obj -triple=i686-linux-gnu %s -o %t.o
|
|
# RUN: ld.lld %t.o -o %t
|
|
# RUN: llvm-readobj --sections -n %t | FileCheck %s
|
|
|
|
## Check that .note.gnu.property has alignment 4 and is readable by llvm-readobj
|
|
|
|
# CHECK: Name: .note.gnu.property
|
|
# CHECK-NEXT: Type: SHT_NOTE (0x7)
|
|
# CHECK-NEXT: Flags [ (0x2)
|
|
# CHECK-NEXT: SHF_ALLOC (0x2)
|
|
# CHECK-NEXT: ]
|
|
# CHECK-NEXT: Address: 0x4000F4
|
|
# CHECK-NEXT: Offset: 0xF4
|
|
# CHECK-NEXT: Size: 28
|
|
# CHECK-NEXT: Link: 0
|
|
# CHECK-NEXT: Info: 0
|
|
# CHECK-NEXT: AddressAlignment: 4
|
|
|
|
# CHECK: Size: 0x1C
|
|
# CHECK-NEXT: Notes [
|
|
# CHECK-NEXT: {
|
|
# CHECK-NEXT: Owner: GNU
|
|
# CHECK-NEXT: Data size: 0xC
|
|
# CHECK-NEXT: Type: NT_GNU_PROPERTY_TYPE_0 (property note)
|
|
# CHECK-NEXT: Property [
|
|
# CHECK-NEXT: x86 feature: IBT
|
|
|
|
.section ".note.gnu.property", "a"
|
|
.p2align 2
|
|
.long 4
|
|
.long 0xc
|
|
.long 0x5
|
|
.asciz "GNU"
|
|
.p2align 2
|
|
.long 0xc0000002 # GNU_PROPERTY_X86_FEATURE_1_AND
|
|
.long 4
|
|
.long 1 # GNU_PROPERTY_X86_FEATURE_1_IBT
|
|
|
|
.text
|
|
.globl _start
|
|
ret
|