d8ebb08a89
We got a bug report that the disassember output was not relocated (i.e. a load address) for a core file (like it is for a live process). It turns out this behavior it depends on whether the instructions were read from an executable file or from process memory (a core file will not typically contain the memory image for segments backed by an executable file). It's unclear whether this behavior is intentional, or if it was just trying to handle the case where we're dissassembling a module without a process, but I think it's undesirable. What makes it particularly confusing is that the instruction addresses are relocated in this case (unlike the when we don't have a process), so with large files and adresses it gets very hard to see whether the relocation has been applied or not. This patch removes the data_from_file check so that the instruction is relocated regardless of where it was read from. It will still not get relocated for the raw module use case, as those can't be relocated anywhere as they don't have a load address.
166 lines
7.3 KiB
ArmAsm
166 lines
7.3 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux %s -o %t
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# RUN: %lldb %t -o "settings set interpreter.stop-command-source-on-error false" \
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# RUN: -o "settings set stop-disassembly-max-size 8000" \
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# RUN: -s %S/Inputs/command-disassemble.lldbinit -o exit 2>&1 | FileCheck %s
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# CHECK: (lldb) disassemble
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# CHECK-NEXT: error: Cannot disassemble around the current function without a selected frame: no currently running process.
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# CHECK-NEXT: (lldb) disassemble --line
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# CHECK-NEXT: error: Cannot disassemble around the current line without a selected frame: no currently running process.
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# CHECK-NEXT: (lldb) disassemble --frame
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# CHECK-NEXT: error: Cannot disassemble around the current function without a selected frame: no currently running process.
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# CHECK-NEXT: (lldb) disassemble --pc
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# CHECK-NEXT: error: Cannot disassemble around the current PC without a selected frame: no currently running process.
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# CHECK-NEXT: (lldb) disassemble --start-address 0x0
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# CHECK-NEXT: command-disassemble.s.tmp`foo:
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# CHECK-NEXT: command-disassemble.s.tmp[0x0] <+0>: jmp 0x2 ; <+2>
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# CHECK-NEXT: command-disassemble.s.tmp[0x2] <+2>: int $0x11
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# CHECK-NEXT: command-disassemble.s.tmp[0x4] <+4>: int $0x12
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# CHECK-NEXT: command-disassemble.s.tmp[0x6] <+6>: int $0x13
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# CHECK-NEXT: command-disassemble.s.tmp[0x8] <+8>: int $0x14
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# CHECK-NEXT: command-disassemble.s.tmp[0xa] <+10>: int $0x15
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# CHECK-NEXT: command-disassemble.s.tmp[0xc] <+12>: int $0x16
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# CHECK-EMPTY:
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# CHECK-NEXT: command-disassemble.s.tmp`bar:
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# CHECK-NEXT: command-disassemble.s.tmp[0xe] <+0>: int $0x17
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# CHECK-NEXT: command-disassemble.s.tmp[0x10] <+2>: int $0x18
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# CHECK-NEXT: command-disassemble.s.tmp[0x12] <+4>: int $0x19
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# CHECK-NEXT: command-disassemble.s.tmp[0x14] <+6>: int $0x1a
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# CHECK-NEXT: command-disassemble.s.tmp[0x16] <+8>: int $0x1b
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# CHECK-NEXT: command-disassemble.s.tmp[0x18] <+10>: int $0x1c
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# CHECK-NEXT: command-disassemble.s.tmp[0x1a] <+12>: int $0x1d
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# CHECK-NEXT: command-disassemble.s.tmp[0x1c] <+14>: int $0x1e
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# CHECK-NEXT: command-disassemble.s.tmp[0x1e] <+16>: int $0x1f
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# CHECK-NEXT: (lldb) disassemble --start-address 0x4 --end-address 0x8
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# CHECK-NEXT: command-disassemble.s.tmp`foo:
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# CHECK-NEXT: command-disassemble.s.tmp[0x4] <+4>: int $0x12
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# CHECK-NEXT: command-disassemble.s.tmp[0x6] <+6>: int $0x13
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# CHECK-NEXT: (lldb) disassemble --start-address 0x8 --end-address 0x4
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# CHECK-NEXT: error: End address before start address.
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# CHECK-NEXT: (lldb) disassemble --address 0x0
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# CHECK-NEXT: command-disassemble.s.tmp`foo:
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# CHECK-NEXT: command-disassemble.s.tmp[0x0] <+0>: jmp 0x2 ; <+2>
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# CHECK-NEXT: command-disassemble.s.tmp[0x2] <+2>: int $0x11
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# CHECK-NEXT: command-disassemble.s.tmp[0x4] <+4>: int $0x12
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# CHECK-NEXT: command-disassemble.s.tmp[0x6] <+6>: int $0x13
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# CHECK-NEXT: command-disassemble.s.tmp[0x8] <+8>: int $0x14
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# CHECK-NEXT: command-disassemble.s.tmp[0xa] <+10>: int $0x15
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# CHECK-NEXT: command-disassemble.s.tmp[0xc] <+12>: int $0x16
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# CHECK-NEXT: (lldb) disassemble --address 0xdeadb
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# CHECK-NEXT: error: Could not find function bounds for address 0xdeadb
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# CHECK-NEXT: (lldb) disassemble --address 0x100
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# CHECK-NEXT: error: Not disassembling the function because it is very large [0x0000000000000040-0x0000000000002040). To disassemble specify an instruction count limit, start/stop addresses or use the --force option.
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# CHECK-NEXT: (lldb) disassemble --address 0x100 --count 3
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# CHECK-NEXT: command-disassemble.s.tmp`very_long:
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# CHECK-NEXT: command-disassemble.s.tmp[0x40] <+0>: int $0x2a
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# CHECK-NEXT: command-disassemble.s.tmp[0x42] <+2>: int $0x2a
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# CHECK-NEXT: command-disassemble.s.tmp[0x44] <+4>: int $0x2a
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# CHECK-NEXT: (lldb) disassemble --address 0x100 --force
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# CHECK-NEXT: command-disassemble.s.tmp`very_long:
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# CHECK-NEXT: command-disassemble.s.tmp[0x40] <+0>: int $0x2a
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# CHECK: command-disassemble.s.tmp[0x203e] <+8190>: int $0x2a
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# CHECK-NEXT: (lldb) disassemble --start-address 0x0 --count 7
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# CHECK-NEXT: command-disassemble.s.tmp`foo:
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# CHECK-NEXT: command-disassemble.s.tmp[0x0] <+0>: jmp 0x2 ; <+2>
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# CHECK-NEXT: command-disassemble.s.tmp[0x2] <+2>: int $0x11
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# CHECK-NEXT: command-disassemble.s.tmp[0x4] <+4>: int $0x12
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# CHECK-NEXT: command-disassemble.s.tmp[0x6] <+6>: int $0x13
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# CHECK-NEXT: command-disassemble.s.tmp[0x8] <+8>: int $0x14
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# CHECK-NEXT: command-disassemble.s.tmp[0xa] <+10>: int $0x15
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# CHECK-NEXT: command-disassemble.s.tmp[0xc] <+12>: int $0x16
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# CHECK-NEXT: (lldb) disassemble --start-address 0x0 --end-address 0x20 --count 7
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# CHECK-NEXT: error: invalid combination of options for the given command
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# CHECK-NEXT: (lldb) disassemble --name case1
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# CHECK-NEXT: command-disassemble.s.tmp`n1::case1:
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# CHECK-NEXT: command-disassemble.s.tmp[0x2040] <+0>: int $0x30
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# CHECK-EMPTY:
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# CHECK-NEXT: command-disassemble.s.tmp`n2::case1:
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# CHECK-NEXT: command-disassemble.s.tmp[0x2042] <+0>: int $0x31
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# CHECK-EMPTY:
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# CHECK-NEXT: (lldb) disassemble --name case2
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# CHECK-NEXT: command-disassemble.s.tmp`n1::case2:
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# CHECK-NEXT: command-disassemble.s.tmp[0x2044] <+0>: int $0x32
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# CHECK-NEXT: warning: Not disassembling a range because it is very large [0x0000000000002046-0x0000000000004046). To disassemble specify an instruction count limit, start/stop addresses or use the --force option.
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# CHECK-NEXT: (lldb) disassemble --name case3
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# CHECK-NEXT: error: Not disassembling a range because it is very large [0x0000000000004046-0x0000000000006046). To disassemble specify an instruction count limit, start/stop addresses or use the --force option.
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# CHECK-NEXT: Not disassembling a range because it is very large [0x0000000000006046-0x0000000000008046). To disassemble specify an instruction count limit, start/stop addresses or use the --force option.
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# CHECK-NEXT: (lldb) disassemble --name case3 --count 3
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# CHECK-NEXT: command-disassemble.s.tmp`n1::case3:
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# CHECK-NEXT: command-disassemble.s.tmp[0x4046] <+0>: int $0x2a
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# CHECK-NEXT: command-disassemble.s.tmp[0x4048] <+2>: int $0x2a
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# CHECK-NEXT: command-disassemble.s.tmp[0x404a] <+4>: int $0x2a
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# CHECK-EMPTY:
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# CHECK-NEXT: command-disassemble.s.tmp`n2::case3:
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# CHECK-NEXT: command-disassemble.s.tmp[0x6046] <+0>: int $0x2a
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# CHECK-NEXT: command-disassemble.s.tmp[0x6048] <+2>: int $0x2a
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# CHECK-NEXT: command-disassemble.s.tmp[0x604a] <+4>: int $0x2a
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# CHECK-EMPTY:
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.text
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foo:
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jmp 1f
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1: int $0x11
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int $0x12
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int $0x13
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int $0x14
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int $0x15
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int $0x16
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bar:
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int $0x17
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int $0x18
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int $0x19
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int $0x1a
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int $0x1b
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int $0x1c
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int $0x1d
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int $0x1e
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int $0x1f
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int $0x20
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int $0x21
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int $0x22
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int $0x23
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int $0x24
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int $0x25
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int $0x26
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int $0x27
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int $0x28
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int $0x29
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int $0x2a
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int $0x2b
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int $0x2c
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int $0x2d
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int $0x2e
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int $0x2f
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very_long:
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.rept 0x1000
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int $42
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.endr
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_ZN2n15case1Ev:
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int $0x30
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_ZN2n25case1Ev:
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int $0x31
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_ZN2n15case2Ev:
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int $0x32
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_ZN2n25case2Ev:
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.rept 0x1000
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int $42
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.endr
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_ZN2n15case3Ev:
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.rept 0x1000
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int $42
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.endr
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_ZN2n25case3Ev:
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.rept 0x1000
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int $42
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.endr
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