[llvm-objdump] --adjust-vma: Call getInstruction with adjusted address

llvm-objdump currently calls MCDisassembler::getInstruction with
unadjusted address and MCInstPrinter::printInst with adjusted address.
The decoded branch targets will be adjusted as expected for most targets
(as the getInstruction address is insignificant) but not for SystemZ
(where the getInstruction address is displayed).

Specify an adjust address to fix SystemZInstPrinter output.

The added test utilizes llvm/utils/update_test_body.py to make updates
easier and additionally checks that we don't adjust SHN_ABS symbol
addresses.

Pull Request: #140471

Author: MaskRay

llvm/test/tools/llvm-objdump/ELF/SystemZ/adjust-vma.test

@@ -0,0 +1,98 @@
+## SystemZDisassembler sets the branch target information during getInstruction instead of printInst.
+## Test we display the branch targets correctly in the presence of --adjust-vma.
+# RUN: rm -rf %t && split-file %s %t && cd %t
+# RUN: yaml2obj a.yaml -o out
+# RUN: llvm-objdump -td --adjust-vma=0x200000 --no-show-raw-insn out | FileCheck %s --match-full-lines
+
+# CHECK:      SYMBOL TABLE:
+# CHECK-NEXT: 0000000001200104 l       .text  0000000000000000 f1
+# CHECK-NEXT: 0000000001200106 l       .text  0000000000000000 f2
+# CHECK-NEXT: 0000000000000800 l       *ABS*  0000000000000000 abs
+
+# CHECK:      00000000012000f8 <_start>:
+# CHECK-NEXT:  12000f8: brasl   %r14, 0x1200104
+# CHECK-NEXT:  12000fe: brasl   %r14, 0x1200106
+# CHECK-EMPTY:
+# CHECK-NEXT: 0000000001200104 <f1>:
+# CHECK-NEXT:  1200104: br      %r14
+# CHECK-EMPTY:
+# CHECK-NEXT: 0000000001200106 <f2>:
+# CHECK-NEXT:  1200106: br      %r14
+
+#--- a.s
+.globl _start
+_start:
+  brasl %r14, f1
+  brasl %r14, f2
+
+f1:
+  br %r14
+f2:
+  br %r14
+
+abs = 0x800
+#--- gen
+LLD_IN_TEST=1 clang --target=s390x-linux -no-pie -nostdlib -Wl,--no-rosegment,-zseparate-code,-znorelro,-znognustack -fuse-ld=lld a.s -o a
+obj2yaml a
+#--- a.yaml
+--- !ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2MSB
+  Type:            ET_EXEC
+  Machine:         EM_S390
+  Entry:           0x10000F8
+ProgramHeaders:
+  - Type:            PT_PHDR
+    Flags:           [ PF_R ]
+    VAddr:           0x1000040
+    Align:           0x8
+    Offset:          0x40
+  - Type:            PT_INTERP
+    Flags:           [ PF_R ]
+    FirstSec:        .interp
+    LastSec:         .interp
+    VAddr:           0x10000E8
+    Offset:          0xE8
+  - Type:            PT_LOAD
+    Flags:           [ PF_X, PF_R ]
+    FirstSec:        .interp
+    LastSec:         .text
+    VAddr:           0x1000000
+    Align:           0x1000
+    Offset:          0x0
+Sections:
+  - Name:            .interp
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC ]
+    Address:         0x10000E8
+    AddressAlign:    0x1
+    Content:         2F6C69622F6C6436342E736F2E3100
+  - Name:            .text
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+    Address:         0x10000F8
+    AddressAlign:    0x4
+    Content:         C0E500000006C0E50000000407FE07FE
+  - Name:            .comment
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_MERGE, SHF_STRINGS ]
+    AddressAlign:    0x1
+    EntSize:         0x1
+    Offset:          0x1000
+    Content:         4C696E6B65723A204C4C442032312E302E3000
+Symbols:
+  - Name:            f1
+    Section:         .text
+    Value:           0x1000104
+  - Name:            f2
+    Section:         .text
+    Value:           0x1000106
+  - Name:            abs
+    Index:           SHN_ABS
+    Value:           0x800
+  - Name:            _start
+    Section:         .text
+    Binding:         STB_GLOBAL
+    Value:           0x10000F8
+...

llvm/test/tools/llvm-objdump/X86/elf-disassemble-symbololize-operands.yaml

@@ -4,6 +4,9 @@
 # RUN: llvm-objdump %t -d --symbolize-operands -M att --no-show-raw-insn --no-leading-addr | \
 # RUN:   FileCheck %s --match-full-lines --check-prefix=ATT
 
+# RUN: llvm-objdump %t -d --symbolize-operands -M intel --no-show-raw-insn --no-leading-addr --adjust-vma=0x2000 | \
+# RUN:   FileCheck %s --match-full-lines --check-prefix=INTEL
+
 ## Expect to find the branch labels and global variable name.
 # ATT:      <_start>:
 # ATT-NEXT:   pushq %rax

llvm/tools/llvm-objdump/llvm-objdump.cpp

@@ -2323,7 +2323,7 @@ disassembleObject(ObjectFile &Obj, const ObjectFile &DbgObj,
           // provided
           MCInst Inst;
           ArrayRef<uint8_t> ThisBytes = Bytes.slice(Index);
-          uint64_t ThisAddr = SectionAddr + Index;
+          uint64_t ThisAddr = SectionAddr + Index + VMAAdjustment;
           bool Disassembled = DT->DisAsm->getInstruction(
               Inst, Size, ThisBytes, ThisAddr, CommentStream);
           if (Size == 0)