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[yaml2obj] Remove --format option in favor of YAML tags Summary: Our YAML library's handling of tags isn't perfect, but it is good enough to get rid of the need for the --format argument to yaml2obj. This patch does exactly that. Instead of requiring --format, it infers the format based on the tags found in the object file. The supported tags are: !ELF !COFF !mach-o !fat-mach-o I have a corresponding patch that is quite large that fixes up all the in-tree test cases. Reviewers: rafael, Bigcheese, compnerd, silvas Subscribers: compnerd, llvm-commits Differential Revision: http://reviews.llvm.org/D21711 llvm-svn: 273915
2016-06-28 03:53:53 +08:00
# RUN: yaml2obj %s | llvm-readobj -sections -section-data - | FileCheck %s
# RUN: yaml2obj -o %t %s
[yaml2obj] Add "-o" command line option to specify an output file name. llvm-svn: 208900
2014-05-16 00:14:02 +08:00
# RUN: llvm-readobj -sections -section-data %t | FileCheck %s
[yaml2obj] Initial ELF section support. The current functionality is extremely basic and a bit rough around the edges, but it will flesh out in future commits. llvm-svn: 183953
2013-06-14 06:19:48 +08:00
!ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
[yaml2obj] Add support for sh_addralign via `AddressAlign` key. For consistency, change the address in the test case from 0xDEADBEEF to 0xCAFEBABE since 0xCAFEBABE that actually has a 2-byte alignment. llvm-svn: 183962
2013-06-14 08:38:02 +08:00
Address: 0xCAFEBABE
[yaml2obj] Add support for sh_link via `Link` key. llvm-svn: 184022
2013-06-15 08:25:26 +08:00
Link: .text # Doesn't make sense for SHT_PROGBITS, but good enough for test.
[yaml2obj] Add support for specifying raw section content. llvm-svn: 183955
2013-06-14 06:20:01 +08:00
Content: EBFE
[yaml2obj] Add support for sh_addralign via `AddressAlign` key. For consistency, change the address in the test case from 0xDEADBEEF to 0xCAFEBABE since 0xCAFEBABE that actually has a 2-byte alignment. llvm-svn: 183962
2013-06-14 08:38:02 +08:00
AddressAlign: 2
[yaml2obj] Initial ELF section support. The current functionality is extremely basic and a bit rough around the edges, but it will flesh out in future commits. llvm-svn: 183953
2013-06-14 06:19:48 +08:00
[yaml2obj][ELF] Add an optional `Size` field to the YAML section declaration. Now the only method to configure ELF section's content and size is to assign a hexadecimal string to the `Content` field. Unfortunately this way is completely useless when you need to declare a really large section. To solve this problem this patch adds one more optional field `Size` to the `RawContentSection` structure. When yaml2obj generates an ELF file it uses the following algorithm: 1. If both `Content` and `Size` fields are missed create an empty section. 2. If only `Content` field is missed take section length from the `Size` field and fill the section by zero. 3. If only `Size` field is missed create a section using data from the `Content` field. 4. If both `Content` and `Size` fields are provided validate that the `Size` value is not less than size of `Content` data. Than take section length from the `Size`, fill beginning of the section by `Content` and the rest by zero. Examples -------- * Create a section 0x10000 bytes long filled by zero Name: .data Type: SHT_PROGBITS Flags: [ SHF_ALLOC ] Size: 0x10000 * Create a section 0x10000 bytes long starting from 'CA' 'FE' 'BA' 'BE' Name: .data Type: SHT_PROGBITS Flags: [ SHF_ALLOC ] Content: CAFEBABE Size: 0x10000 The patch reviewed by Michael Spencer. llvm-svn: 208995
2014-05-17 00:01:00 +08:00
- Name: .data
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC ]
Address: 0xCAFECAFE
Content: FEBF
Size: 8
AddressAlign: 2
[yaml2obj] Initial ELF section support. The current functionality is extremely basic and a bit rough around the edges, but it will flesh out in future commits. llvm-svn: 183953
2013-06-14 06:19:48 +08:00
# CHECK: Section {
# CHECK: Index: 0
# CHECK: Type: SHT_NULL (0x0)
#
# CHECK: Section {
# CHECK: Name: .text
# CHECK: Type: SHT_PROGBITS (0x1)
# CHECK-NEXT: Flags [ (0x6)
# CHECK-NEXT: SHF_ALLOC (0x2)
# CHECK-NEXT: SHF_EXECINSTR (0x4)
# CHECK-NEXT: ]
[yaml2obj] Add support for sh_addralign via `AddressAlign` key. For consistency, change the address in the test case from 0xDEADBEEF to 0xCAFEBABE since 0xCAFEBABE that actually has a 2-byte alignment. llvm-svn: 183962
2013-06-14 08:38:02 +08:00
# CHECK-NEXT: Address: 0xCAFEBABE
[yaml2obj] Add support for specifying raw section content. llvm-svn: 183955
2013-06-14 06:20:01 +08:00
# CHECK: Size: 2
[yaml2obj] Add support for sh_link via `Link` key. llvm-svn: 184022
2013-06-15 08:25:26 +08:00
# Check that Link != 0.
# CHECK: Link: {{[1-9][0-9]*}}
[yaml2obj] Add support for sh_addralign via `AddressAlign` key. For consistency, change the address in the test case from 0xDEADBEEF to 0xCAFEBABE since 0xCAFEBABE that actually has a 2-byte alignment. llvm-svn: 183962
2013-06-14 08:38:02 +08:00
# CHECK: AddressAlignment: 2
[yaml2obj] Add support for specifying raw section content. llvm-svn: 183955
2013-06-14 06:20:01 +08:00
# CHECK: SectionData (
# CHECK-NEXT: 0000: EBFE
# CHECK-NEXT: )
[yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names. llvm-svn: 203897
2014-03-14 14:53:16 +08:00
#
# CHECK: Section {
[yaml2obj][ELF] Add an optional `Size` field to the YAML section declaration. Now the only method to configure ELF section's content and size is to assign a hexadecimal string to the `Content` field. Unfortunately this way is completely useless when you need to declare a really large section. To solve this problem this patch adds one more optional field `Size` to the `RawContentSection` structure. When yaml2obj generates an ELF file it uses the following algorithm: 1. If both `Content` and `Size` fields are missed create an empty section. 2. If only `Content` field is missed take section length from the `Size` field and fill the section by zero. 3. If only `Size` field is missed create a section using data from the `Content` field. 4. If both `Content` and `Size` fields are provided validate that the `Size` value is not less than size of `Content` data. Than take section length from the `Size`, fill beginning of the section by `Content` and the rest by zero. Examples -------- * Create a section 0x10000 bytes long filled by zero Name: .data Type: SHT_PROGBITS Flags: [ SHF_ALLOC ] Size: 0x10000 * Create a section 0x10000 bytes long starting from 'CA' 'FE' 'BA' 'BE' Name: .data Type: SHT_PROGBITS Flags: [ SHF_ALLOC ] Content: CAFEBABE Size: 0x10000 The patch reviewed by Michael Spencer. llvm-svn: 208995
2014-05-17 00:01:00 +08:00
# CHECK: Name: .data
# CHECK-NEXT: Type: SHT_PROGBITS (0x1)
# CHECK-NEXT: Flags [ (0x2)
# CHECK-NEXT: SHF_ALLOC (0x2)
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0xCAFECAFE
[yaml2obj] Use regex to match sections offsets. NFC llvm-svn: 241669
2015-07-08 14:57:24 +08:00
# CHECK-NEXT: Offset: 0x{{[0-9A-F]+}}
[yaml2obj][ELF] Add an optional `Size` field to the YAML section declaration. Now the only method to configure ELF section's content and size is to assign a hexadecimal string to the `Content` field. Unfortunately this way is completely useless when you need to declare a really large section. To solve this problem this patch adds one more optional field `Size` to the `RawContentSection` structure. When yaml2obj generates an ELF file it uses the following algorithm: 1. If both `Content` and `Size` fields are missed create an empty section. 2. If only `Content` field is missed take section length from the `Size` field and fill the section by zero. 3. If only `Size` field is missed create a section using data from the `Content` field. 4. If both `Content` and `Size` fields are provided validate that the `Size` value is not less than size of `Content` data. Than take section length from the `Size`, fill beginning of the section by `Content` and the rest by zero. Examples -------- * Create a section 0x10000 bytes long filled by zero Name: .data Type: SHT_PROGBITS Flags: [ SHF_ALLOC ] Size: 0x10000 * Create a section 0x10000 bytes long starting from 'CA' 'FE' 'BA' 'BE' Name: .data Type: SHT_PROGBITS Flags: [ SHF_ALLOC ] Content: CAFEBABE Size: 0x10000 The patch reviewed by Michael Spencer. llvm-svn: 208995
2014-05-17 00:01:00 +08:00
# CHECK-NEXT: Size: 8
# CHECK-NEXT: Link: 0
# CHECK-NEXT: Info: 0
# CHECK-NEXT: AddressAlignment: 2
# CHECK-NEXT: EntrySize: 0
# CHECK-NEXT: SectionData (
# CHECK-NEXT: 0000: FEBF0000 00000000 |........|
# CHECK-NEXT: )
#
# CHECK: Section {
Use the new StringTableBuilder in yaml2elf http://reviews.llvm.org/D3574 llvm-svn: 207694
2014-05-01 03:38:09 +08:00
# CHECK: Name: .symtab (25)
[yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names. llvm-svn: 203897
2014-03-14 14:53:16 +08:00
# CHECK: Type: SHT_SYMTAB (0x2)
[yaml2obj] Initialize sh_addralign field for the .symtab section llvm-svn: 241835
2015-07-10 02:23:02 +08:00
# CHECK: AddressAlignment: 8
[yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names. llvm-svn: 203897
2014-03-14 14:53:16 +08:00
# CHECK: }
# CHECK: Section {
Use the new StringTableBuilder in yaml2elf http://reviews.llvm.org/D3574 llvm-svn: 207694
2014-05-01 03:38:09 +08:00
# CHECK: Name: .strtab (17)
[yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names. llvm-svn: 203897
2014-03-14 14:53:16 +08:00
# CHECK: Type: SHT_STRTAB (0x3)
[yaml2obj] Initialize sh_addralign field for the .symtab section llvm-svn: 241835
2015-07-10 02:23:02 +08:00
# CHECK: AddressAlignment: 1
[yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names. llvm-svn: 203897
2014-03-14 14:53:16 +08:00
# CHECK: }
# CHECK: Section {
Use the new StringTableBuilder in yaml2elf http://reviews.llvm.org/D3574 llvm-svn: 207694
2014-05-01 03:38:09 +08:00
# CHECK: Name: .shstrtab (7)
[yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names. llvm-svn: 203897
2014-03-14 14:53:16 +08:00
# CHECK: Type: SHT_STRTAB (0x3)
[yaml2obj] Initialize sh_addralign field for the .symtab section llvm-svn: 241835
2015-07-10 02:23:02 +08:00
# CHECK: AddressAlignment: 1
[yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names. llvm-svn: 203897
2014-03-14 14:53:16 +08:00
# CHECK: }