The new behavior matches GNU objdump. A pair of angle brackets makes tests slightly easier.
`.foo:` is not unique and thus cannot be used in a `CHECK-LABEL:` directive.
Without `-LABEL`, the CHECK line can match the `Disassembly of section`
line and causes the next `CHECK-NEXT:` to fail.
```
Disassembly of section .foo:
0000000000001634 .foo:
```
Bdragon: <> has metalinguistic connotation. it just "feels right"
Reviewed By: rupprecht
Differential Revision: https://reviews.llvm.org/D75713
This improves readability and the behavior is consistent with GNU objdump.
The new test test/tools/llvm-objdump/X86/disassemble-section-name.s
checks we print newlines before and after "Disassembly of section ...:"
Differential Revision: https://reviews.llvm.org/D61127
llvm-svn: 359668
The Thumb BL and BLX instructions on older Arm Architectures such as v5 and
v6 have a constrained encoding J1 and J2 must equal 1, later Architectures
relaxed this restriction allowing J1 and J2 to be used to calculate a larger
immediate.
This patch adds support for the old encoding, it is used when the build
attributes for the input objects only contain older architectures.
Differential Revision: https://reviews.llvm.org/D50076
llvm-svn: 340159
This patch fills holes in executable sections with 0xd4 (ARM) or
0xef (MIPS). These trap instructions were suggested by Theo de Raadt.
llvm-svn: 306322
In most cases that means just not checking the address when we don't
need it.
For some tests it is easier to just set . to a known value.
llvm-svn: 281976
Add support for the R_ARM_THM relocations used in the objects present
in arm-linux-gnueabihf-gcc. These are:
R_ARM_THM_CALL
R_ARM_THM_JUMP11
R_ARM_THM_JUMP19
R_ARM_THM_JUMP24
R_ARM_THM_MOVT_ABS
R_ARM_THM_MOVW_ABS_NC
Interworking between ARM and Thumb is partially supported with BLX.
The R_ARM_CALL relocation for ARM instructions and R_ARM_THM_CALL
relocation for Thumb instructions will write out a BL or BLX depending
on the state of the Target.
Assumptions:
- Availability of BLX and extended range of Thumb 4-byte Branch
instructions.
- In relocateOne if (Val & 0x1) == 1 target is Thumb, 0 is ARM.
This will hold for objects that comply with the ABI for the
ARM architecture.
This is sufficient for hello world to work with a recent
arm-linux-gnueabihf distribution.
Limitations:
No interworking for R_ARM_JUMP24, R_ARM_THM_JUMP24, R_ARM_THM_JUMP19
and the deprecated R_ARM_PLT32 and R_ARM_PC24 instructions as these
cannot be written out as a BLX and need a state change thunk.
No range extension thunks. The R_ARM_JUMP24 and R_ARM_THM_CALL have a
range of 16Mb
llvm-svn: 272881
Fangrui Song