[llvm-readobj] Dump callgraph section info for ELF #157499
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| ## Tests --call-graph-info prints information from call graph section. | ||
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| # REQUIRES: x86-registered-target | ||
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| # RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t | ||
| # RUN: llvm-readelf --call-graph-info %t 2>&1 | FileCheck %s -DFILE=%t --match-full-lines | ||
| # RUN: llvm-readelf --elf-output-style=LLVM --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=LLVM | ||
| # RUN: llvm-readelf --elf-output-style=JSON --pretty-print --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=JSON | ||
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| # CHECK: {{.*}}llvm-readelf{{.*}}: warning: '[[FILE]]': .callgraph section has unknown type id for 1 indirect targets. | ||
| # CHECK-NEXT: Per-function call graph information:: | ||
| # CHECK-EMPTY: | ||
| # CHECK-NEXT: Function:: foo | ||
| # CHECK-NEXT: Function PC:: 0x0 | ||
| # CHECK-NEXT: FormatVersionNumber:: 0 | ||
| # CHECK-NEXT: Function Kind:: NOT_INDIRECT | ||
| # CHECK-NEXT: Indirect callee count:: 0 | ||
| # CHECK-NEXT: Direct callee count:: 1 | ||
| # CHECK-NEXT: { | ||
| # CHECK-NEXT: CalleePC:: 0x5 | ||
| # CHECK-NEXT: } | ||
| # CHECK-EMPTY: | ||
| # CHECK-NEXT: Function:: bar | ||
| # CHECK-NEXT: Function PC:: 0x6 | ||
| # CHECK-NEXT: FormatVersionNumber:: 0 | ||
| # CHECK-NEXT: Function Kind:: UNKNOWN_TID | ||
| # CHECK-NEXT: Indirect callee count:: 1 | ||
| # CHECK-NEXT: { | ||
| # CHECK-NEXT: callsite: 0x9 | ||
| # CHECK-NEXT: calleeTypeId: 0x10 | ||
| # CHECK-NEXT: } | ||
| # CHECK-NEXT: Direct callee count:: 0 | ||
| # CHECK-EMPTY: | ||
| # CHECK-NEXT: Function:: baz | ||
| # CHECK-NEXT: Function PC:: 0xa | ||
| # CHECK-NEXT: FormatVersionNumber:: 0 | ||
| # CHECK-NEXT: Function Kind:: KNOWN_TID | ||
| # CHECK-NEXT: Function Type ID:: 0x20 | ||
| # CHECK-NEXT: Indirect callee count:: 0 | ||
| # CHECK-NEXT: Direct callee count:: 0 | ||
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There was a problem hiding this comment. shouldn't this section fail when you do json(and I guess llvm too) output? CHECK lines are always checked no matter the prefix. |
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| # LLVM: {{.*}}llvm-readelf{{.*}}: warning: '[[FILE]]': .callgraph section has unknown type id for 1 indirect targets. | ||
| # LLVM: callgraph_info [ | ||
| # LLVM-NEXT: Function { | ||
| # LLVM-NEXT: Name: foo | ||
| # LLVM-NEXT: Address: 0x0 | ||
| # LLVM-NEXT: Version: 0 | ||
| # LLVM-NEXT: KindStr: NOT_INDIRECT | ||
| # LLVM-NEXT: Kind: 0 | ||
| # LLVM-NEXT: NumIndirectCallSites: 0 | ||
| # LLVM-NEXT: NumDirectCallSites: 1 | ||
| # LLVM-NEXT: DirectCallees [ | ||
| # LLVM-NEXT: Entry { | ||
| # LLVM-NEXT: Address: 0x5 | ||
| # LLVM-NEXT: } | ||
| # LLVM-NEXT: ] | ||
| # LLVM-NEXT: } | ||
| # LLVM-NEXT: Function { | ||
| # LLVM-NEXT: Name: bar | ||
| # LLVM-NEXT: Address: 0x6 | ||
| # LLVM-NEXT: Version: 0 | ||
| # LLVM-NEXT: KindStr: UNKNOWN_TID | ||
| # LLVM-NEXT: Kind: 1 | ||
| # LLVM-NEXT: NumIndirectCallSites: 1 | ||
| # LLVM-NEXT: IndirectCallsites [ | ||
| # LLVM-NEXT: IndirectCallsite { | ||
| # LLVM-NEXT: Address: 0x9 | ||
| # LLVM-NEXT: TypeId: 0x10 | ||
| # LLVM-NEXT: } | ||
| # LLVM-NEXT: ] | ||
| # LLVM-NEXT: NumDirectCallSites: 0 | ||
| # LLVM-NEXT: } | ||
| # LLVM-NEXT: Function { | ||
| # LLVM-NEXT: Name: baz | ||
| # LLVM-NEXT: Address: 0xA | ||
| # LLVM-NEXT: Version: 0 | ||
| # LLVM-NEXT: KindStr: KNOWN_TID | ||
| # LLVM-NEXT: Kind: 2 | ||
| # LLVM-NEXT: TypeId: 0x20 | ||
| # LLVM-NEXT: NumIndirectCallSites: 0 | ||
| # LLVM-NEXT: NumDirectCallSites: 0 | ||
| # LLVM-NEXT: } | ||
| # LLVM-NEXT: ] | ||
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| # JSON: {{.*}}llvm-readelf{{.*}}: warning: '[[FILE]]': .callgraph section has unknown type id for 1 indirect targets. | ||
| # JSON: "callgraph_info": [ | ||
| # JSON-NEXT: { | ||
| # JSON-NEXT: "Function": { | ||
| # JSON-NEXT: "Name": "foo", | ||
| # JSON-NEXT: "Address": 0, | ||
| # JSON-NEXT: "Version": 0, | ||
| # JSON-NEXT: "KindStr": "NOT_INDIRECT", | ||
| # JSON-NEXT: "Kind": 0, | ||
| # JSON-NEXT: "NumIndirectCallSites": 0, | ||
| # JSON-NEXT: "NumDirectCallSites": 1, | ||
| # JSON-NEXT: "DirectCallees": [ | ||
| # JSON-NEXT: { | ||
| # JSON-NEXT: "Entry": { | ||
| # JSON-NEXT: "Address": 5 | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: ] | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: }, | ||
| # JSON-NEXT: { | ||
| # JSON-NEXT: "Function": { | ||
| # JSON-NEXT: "Name": "bar", | ||
| # JSON-NEXT: "Address": 6, | ||
| # JSON-NEXT: "Version": 0, | ||
| # JSON-NEXT: "KindStr": "UNKNOWN_TID", | ||
| # JSON-NEXT: "Kind": 1, | ||
| # JSON-NEXT: "NumIndirectCallSites": 1, | ||
| # JSON-NEXT: "IndirectCallsites": [ | ||
| # JSON-NEXT: { | ||
| # JSON-NEXT: "IndirectCallsite": { | ||
| # JSON-NEXT: "Address": 9, | ||
| # JSON-NEXT: "TypeId": 16 | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: ], | ||
| # JSON-NEXT: "NumDirectCallSites": 0 | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: }, | ||
| # JSON-NEXT: { | ||
| # JSON-NEXT: "Function": { | ||
| # JSON-NEXT: "Name": "baz", | ||
| # JSON-NEXT: "Address": 10, | ||
| # JSON-NEXT: "Version": 0, | ||
| # JSON-NEXT: "KindStr": "KNOWN_TID", | ||
| # JSON-NEXT: "Kind": 2, | ||
| # JSON-NEXT: "TypeId": 32, | ||
| # JSON-NEXT: "NumIndirectCallSites": 0, | ||
| # JSON-NEXT: "NumDirectCallSites": 0 | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: } | ||
| # JSON-NEXT: ] | ||
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| .text | ||
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| .globl foo | ||
| .type foo,@function | ||
| foo: #< foo is at 0. | ||
| .Lfoo_begin: | ||
| callq foo #< direct call is at 5. target is foo (5). | ||
| retq | ||
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| .globl bar | ||
| .type bar,@function | ||
| bar: #< bar is at 6. | ||
| callq *-40(%rbp) #< indirect call is at 9. | ||
| retq | ||
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| .globl baz | ||
| .type baz,@function | ||
| baz: #< baz is at 10 (a). | ||
| retq | ||
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| .globl qux | ||
| .type qux,@function | ||
| qux: #< qux is at 11 (b). | ||
| retq | ||
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| .section .callgraph,"o",@progbits,.text | ||
| .quad 0 #< Format version number. | ||
| .quad 0 #< foo()'s entry address. | ||
| .quad 0 #< Function kind: not an indirect target. | ||
| .quad 0 #< Count of indirect call sites that follow: 0. | ||
| .quad 1 #< Count of direct callees that follow: 1> | ||
| .quad 5 #< Direct callee foo's address> | ||
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| .quad 0 #< Format version number. | ||
| .quad 6 #< bar()'s entry address. | ||
| .quad 1 #< Function kind: indirect target with unknown type id. | ||
| .quad 1 #< Count of indirect call sites that follow: 1. | ||
| .quad 16 #< Indirect call type id. | ||
| .quad 9 #< Indirect call site. | ||
| .quad 0 #< Count of direct call sites that follow: 0> | ||
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| .quad 0 #< Format version number. | ||
| .quad 10 #< baz()'s entry address. | ||
| .quad 2 #< Function kind: indirect target with known type id. | ||
| .quad 32 #< Indirect target type id. | ||
| .quad 0 #< Count of indirect call sites that follow: 0>. | ||
| .quad 0 #< Count of direct call sites that follow: 0> | ||
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| # No call graph section entry for qux. | ||
| # Technically its "UNKNOWN" type id but will not be printed as such by llvm-readelf. | ||
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| .text | ||
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| Original file line number | Diff line number | Diff line change |
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| ## Tests that --call-graph-info fails if .callgraph section has unknown format | ||
| ## version number. | ||
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| # REQUIRES: x86-registered-target | ||
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| # RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t | ||
| # RUN: not llvm-readelf --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=LLVM --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=JSON --pretty-print --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
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| # ERR: {{.*}}llvm-readelf{{.*}}: error: 'Unknown value': Unknown format version value [1] in .callgraph section. | ||
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| .text | ||
| .globl _Z3foov | ||
| .type _Z3foov,@function | ||
| _Z3foov: | ||
| callq _Z3foov@PLT | ||
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| .section .callgraph,"o",@progbits,.text | ||
| .quad 1 #< Invalid format version number: the only supported version is 0. | ||
| .text |
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| Original file line number | Diff line number | Diff line change |
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| ## Tests that --call-graph-info fails if .callgraph section has invalid | ||
| ## function kind value. | ||
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| # REQUIRES: x86-registered-target | ||
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| # RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t | ||
| # RUN: not llvm-readelf --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=LLVM --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=JSON --pretty-print --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
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| # ERR: {{.*}}llvm-readelf{{.*}}: error: 'While reading call graph info's [FunctionKind] for function at [0x0]': Unknown value [4]. | ||
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| .text | ||
| .globl _Z3foov | ||
| .type _Z3foov,@function | ||
| _Z3foov: | ||
| callq _Z3foov@PLT | ||
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| .section .callgraph,"o",@progbits,.text | ||
| .quad 0 #< Format version number. | ||
| .quad 0 #< Function entry address. | ||
| .quad 4 #< Invalid function kind: must be one of 0, 1, 2, 3. | ||
| .text |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,25 @@ | ||
| ## Tests that --call-graph-info fails if .callgraph section has invalid size. | ||
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| # REQUIRES: x86-registered-target | ||
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| # RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t | ||
| # RUN: not llvm-readelf --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=LLVM --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=JSON --pretty-print --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
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| # ERR: {{.*}}llvm-readelf{{.*}}: error: 'While reading call graph info's [number of indirect callsites] for function at [0x0]': unexpected end of data at offset 0x19 while reading [0x18, 0x20) | ||
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| .text | ||
| .globl _Z3foov | ||
| .type _Z3foov,@function | ||
| _Z3foov: | ||
| callq _Z3foov@PLT | ||
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| .section .callgraph,"o",@progbits,.text | ||
| # Each unit in .callgraph section must have 64bit size. Therefore, byte size | ||
| # must be divisible by 64. | ||
| .quad 0 | ||
| .quad 0 | ||
| .quad 0 | ||
| .byte 0 | ||
| .text |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,25 @@ | ||
| ## Tests that --call-graph-info fails if .callgraph section does not have | ||
| ## an expected value, e.g., not as much call sites as the given count. | ||
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| # REQUIRES: x86-registered-target | ||
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| # RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t | ||
| # RUN: not llvm-readelf --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=LLVM --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=JSON --pretty-print --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
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| # ERR: {{.*}}llvm-readelf{{.*}}: error: 'While reading call graph info's [indirect target type id] for function at [0x0]': unexpected end of data at offset 0x20 while reading [0x20, 0x28) | ||
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| .text | ||
| .globl _Z3foov | ||
| .type _Z3foov,@function | ||
| _Z3foov: | ||
| callq _Z3foov@PLT | ||
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| .section .callgraph,"o",@progbits,.text | ||
| .quad 0 #< Format version number. | ||
| .quad 0 #< Function entry address. | ||
| .quad 0 #< Function kind. | ||
| .quad 1 #< Indirect call site count that follows. | ||
| #< Missing indirect call entries here. | ||
| .text |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| ## Tests that --call-graph-info fails if .callgraph section does not have | ||
| ## an expected value, e.g., not as much call sites as the given count. | ||
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| # REQUIRES: x86-registered-target | ||
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| # RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t | ||
| # RUN: not llvm-readelf --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=LLVM --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
| # RUN: not llvm-readelf --elf-output-style=JSON --pretty-print --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t --check-prefix=ERR | ||
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| # ERR: {{.*}}llvm-readelf{{.*}}: error: 'While reading call graph info's [direct callee PC] for function at [0x0]': unexpected end of data at offset 0x28 while reading [0x28, 0x30) | ||
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| .text | ||
| .globl _Z3foov | ||
| .type _Z3foov,@function | ||
| _Z3foov: | ||
| callq _Z3foov | ||
| retq | ||
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| .section .callgraph,"o",@progbits,.text | ||
| .quad 0 #< Format version number. | ||
| .quad 0 #< Function entry address. | ||
| .quad 0 #< Function kind. | ||
| .quad 0 #< Indirect call site count. | ||
| .quad 1 #< Direct call site count that follows. | ||
| #< Missing direct call entries here. | ||
| .text |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,16 @@ | ||
| ## Tests that --call-graph-info warns if there is no .callgraph section. | ||
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| # REQUIRES: x86-registered-target | ||
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| # RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t | ||
| # RUN: not llvm-readelf --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t | ||
| # RUN: not llvm-readelf --elf-output-style=LLVM --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t | ||
| # RUN: not llvm-readelf --elf-output-style=JSON --pretty-print --call-graph-info %t 2>&1 | FileCheck %s --match-full-lines -DFILE=%t | ||
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| # CHECK: {{.*}}llvm-readelf{{.*}}: error: 'Missing section': No .callgraph section found. | ||
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| .text | ||
| .globl _Z3foov | ||
| .type _Z3foov,@function | ||
| _Z3foov: | ||
| callq _Z3foov@PLT |
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I don't think you need to check the tool's name do you? What's the convention in other tests?
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I wanted to use
--match-full-linesin my test. Let me try if the test passes if the toolname prefix is not part of the CHECK lines.There was a problem hiding this comment.
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Is there a particular reason you want to match full lines? convention? specific criteria?