65 lines
1.6 KiB
Text
65 lines
1.6 KiB
Text
Test binaries created with the following commands:
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$ cat container.cpp
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#include "container.h"
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#include <stdlib.h>
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struct Container_ivars {
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// real definition here
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};
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ContainerPtr allocateContainer() {
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Container *c = (Container *)malloc(sizeof(Container));
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c->ivars = (Container_ivars *)malloc(sizeof(Container_ivars));
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return c;
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}
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extern void doSomething(ContainerPtr);
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int main() {
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ContainerPtr c = allocateContainer();
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doSomething(c);
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return 0;
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}
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$ cat container.h
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struct Container_ivars;
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struct Container {
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union {
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struct Container_ivars *ivars;
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};
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};
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typedef Container *ContainerPtr;
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$ cat use.cpp
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#include "container.h"
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void doSomething(ContainerPtr c) {}
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$ clang++ -O0 -g container.cpp -c -o container.o
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$ clang++ -O0 -g use.cpp -c -o use.o
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$ clang++ use.o container.o -o a.out
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Note that the link order in the last command matters for this test.
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RUN: dsymutil --linker parallel -oso-prepend-path %p/../Inputs %p/../Inputs/private/tmp/union/a.out -o %t.dSYM
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RUN: llvm-dwarfdump --debug-info %t.dSYM | FileCheck %s
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CHECK: DW_TAG_compile_unit
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CHECK-NEXT: DW_AT_producer ("llvm DWARFLinkerParallel library
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CHECK-NEXT: DW_AT_language (DW_LANG_C_plus_plus_14)
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CHECK-NEXT: DW_AT_name ("__artificial_type_unit")
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CHECK-NEXT: DW_AT_stmt_list (0x00000000)
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CHECK: DW_TAG_structure_type
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CHECK: DW_AT_calling_convention (DW_CC_pass_by_value)
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CHECK: DW_AT_name ("Container_ivars")
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CHECK-NEXT: DW_AT_byte_size (0x01)
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CHECK-NEXT: DW_AT_decl_line (4)
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CHECK-NEXT: DW_AT_decl_file ("{{.*}}container.cpp")
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CHECK: DW_TAG_compile_unit
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CHECK-NOT: DW_AT_declaration
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