forked from OSchip/llvm-project
113 lines
5.3 KiB
Plaintext
113 lines
5.3 KiB
Plaintext
Consider this example program with an inline function "foo":
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==> foo.h <==
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extern int global;
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__inline void foo() {
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++global;
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}
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void bar();
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==> pdb_comdat_main.c <==
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#include "foo.h"
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int main(void) {
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foo();
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bar();
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return 42;
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}
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==> pdb_comdat_bar.c <==
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#include "foo.h"
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void bar(void) {
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foo();
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}
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Both object files will contain debug info for foo, but only the debug info from
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pdb_comdat_main.obj should be included in the PDB.
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RUN: rm -rf %t && mkdir -p %t && cd %t
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RUN: yaml2obj %S/Inputs/pdb_comdat_main.yaml -o pdb_comdat_main.obj
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RUN: yaml2obj %S/Inputs/pdb_comdat_bar.yaml -o pdb_comdat_bar.obj
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RUN: lld-link pdb_comdat_main.obj pdb_comdat_bar.obj -out:%t.exe -debug -pdb:%t.pdb -nodefaultlib -entry:main
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RUN: llvm-pdbutil dump -l -symbols -globals %t.pdb | FileCheck %s
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CHECK: Lines
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CHECK: ============================================================
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CHECK-LABEL: Mod 0000 | `{{.*}}pdb_comdat_main.obj`:
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CHECK: c:\src\llvm-project\build\pdb_comdat_main.c (MD5: F969E51BBE373436D81492EB61387F36)
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CHECK: c:\src\llvm-project\build\foo.h (MD5: D74D834EFAC3AE2B45E606A8320B1D5C)
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CHECK-LABEL: Mod 0001 | `{{.*}}pdb_comdat_bar.obj`:
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CHECK: c:\src\llvm-project\build\pdb_comdat_bar.c (MD5: 365279DB4FCBEDD721BBFC3B14A953C2)
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CHECK-NOT: c:\src\llvm-project\build\foo.h
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CHECK-LABEL: Mod 0002 | `* Linker *`:
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CHECK-LABEL: Global Symbols
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CHECK-NEXT: ============================================================
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CHECK-NEXT: Records
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CHECK-NEXT: 84 | S_PROCREF [size = 20] `main`
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CHECK-NEXT: module = 1, sum name = 0, offset = 120
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CHECK-NEXT: 148 | S_PROCREF [size = 20] `bar`
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CHECK-NEXT: module = 2, sum name = 0, offset = 120
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CHECK-NEXT: 128 | S_PROCREF [size = 20] `foo`
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CHECK-NEXT: module = 1, sum name = 0, offset = 208
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CHECK-NEXT: 104 | S_GDATA32 [size = 24] `global`
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CHECK-NEXT: type = 0x0074 (int), addr = 0003:0000
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CHECK-NEXT: 168 | S_GDATA32 [size = 24] `global`
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CHECK-NEXT: type = 0x0074 (int), addr = 0003:0000
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CHECK: Symbols
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CHECK: ============================================================
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CHECK-LABEL: Mod 0000 | `{{.*}}pdb_comdat_main.obj`:
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CHECK: 4 | S_OBJNAME [size = 56] sig=0, `C:\src\llvm-project\build\pdb_comdat_main.obj`
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CHECK: 60 | S_COMPILE3 [size = 60]
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CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c
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CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.1
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CHECK: flags = security checks | hot patchable
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CHECK: 120 | S_GPROC32 [size = 44] `main`
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CHECK: parent = 0, end = 196, addr = 0001:0000, code size = 24
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CHECK: debug start = 4, debug end = 19, flags = none
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CHECK: 164 | S_FRAMEPROC [size = 32]
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CHECK: size = 40, padding size = 0, offset to padding = 0
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CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
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CHECK: flags = has async eh | opt speed
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CHECK: 196 | S_END [size = 4]
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CHECK: 200 | S_BUILDINFO [size = 8] BuildId = `0x100A`
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CHECK: 208 | S_GPROC32 [size = 44] `foo`
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CHECK: parent = 0, end = 284, addr = 0001:0032, code size = 15
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CHECK: debug start = 0, debug end = 14, flags = none
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CHECK: 252 | S_FRAMEPROC [size = 32]
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CHECK: size = 0, padding size = 0, offset to padding = 0
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CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
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CHECK: flags = marked inline | has async eh | opt speed
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CHECK: 284 | S_END [size = 4]
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CHECK-LABEL: Mod 0001 | `{{.*}}pdb_comdat_bar.obj`:
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CHECK: 4 | S_OBJNAME [size = 56] sig=0, `C:\src\llvm-project\build\pdb_comdat_bar.obj`
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CHECK: 60 | S_COMPILE3 [size = 60]
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CHECK: machine = intel x86-x64, Ver = Microsoft (R) Optimizing Compiler, language = c
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CHECK: frontend = 19.0.24215.1, backend = 19.0.24215.1
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CHECK: flags = security checks | hot patchable
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CHECK: 120 | S_GPROC32 [size = 44] `bar`
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CHECK: parent = 0, end = 196, addr = 0001:0048, code size = 14
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CHECK: debug start = 4, debug end = 9, flags = none
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CHECK: 164 | S_FRAMEPROC [size = 32]
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CHECK: size = 40, padding size = 0, offset to padding = 0
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CHECK: bytes of callee saved registers = 0, exception handler addr = 0000:0000
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CHECK: flags = has async eh | opt speed
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CHECK: 196 | S_END [size = 4]
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CHECK: 200 | S_BUILDINFO [size = 8] BuildId = `0x100D`
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CHECK-NOT: S_GPROC32 {{.*}} `foo`
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CHECK-LABEL: Mod 0002 | `* Linker *`:
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Reorder the object files and verify that the other table is selected.
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RUN: lld-link pdb_comdat_bar.obj pdb_comdat_main.obj -out:t.exe -debug -pdb:t.pdb -nodefaultlib -entry:main
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RUN: llvm-pdbutil dump -l t.pdb | FileCheck %s --check-prefix=REORDER
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REORDER-LABEL: Mod 0000 | `{{.*}}pdb_comdat_bar.obj`:
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REORDER: c:\src\llvm-project\build\pdb_comdat_bar.c (MD5: 365279DB4FCBEDD721BBFC3B14A953C2)
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REORDER: c:\src\llvm-project\build\foo.h (MD5: D74D834EFAC3AE2B45E606A8320B1D5C)
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REORDER-LABEL: Mod 0001 | `{{.*}}pdb_comdat_main.obj`:
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REORDER: c:\src\llvm-project\build\pdb_comdat_main.c
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REORDER-NOT: c:\src\llvm-project\build\foo.h
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REORDER-LABEL: Mod 0002 | `* Linker *`:
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Make sure that we don't crash on non-prevailing debug sections if -debug is not enabled.
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RUN: lld-link pdb_comdat_main.obj pdb_comdat_bar.obj -out:%t.exe -nodefaultlib -entry:main
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