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llvm-project/clang/test/CodeGen/split-debug-single-file.c

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[Clang] - Add '-gsplit-dwarf[=split,=single]' version for '-gsplit-dwarf' option. The DWARF5 specification says(Appendix F.1): "The sections that do not require relocation, however, can be written to the relocatable object (.o) file but ignored by the linker or they can be written to a separate DWARF object (.dwo) file that need not be accessed by the linker." The first part describes a single file split DWARF feature and there is no way to trigger this behavior atm. Fortunately, no many changes are required to keep *.dwo sections in a .o, the patch does that. Differential revision: https://reviews.llvm.org/D52296 llvm-svn: 346837
2018-11-14 17:22:16 +08:00
// REQUIRES: x86-registered-target
// Testing to ensure -enable-split-dwarf=single allows to place .dwo sections into regular output object.
// RUN: %clang_cc1 -debug-info-kind=limited -triple x86_64-unknown-linux \
// RUN: -enable-split-dwarf=single -split-dwarf-file %t.o -emit-obj -o %t.o %s
// RUN: llvm-objdump -section-headers %t.o | FileCheck --check-prefix=MODE-SINGLE %s
// MODE-SINGLE: .dwo
// Testing to ensure -enable-split-dwarf=split does not place .dwo sections into regular output object.
// RUN: %clang_cc1 -debug-info-kind=limited -triple x86_64-unknown-linux \
// RUN: -enable-split-dwarf=split -split-dwarf-file %t.o -emit-obj -o %t.o %s
// RUN: llvm-objdump -section-headers %t.o | FileCheck --check-prefix=MODE-SPLIT %s
// MODE-SPLIT-NOT: .dwo
int main (void) {
return 0;
}