llvm/test/tools/dsymutil/basic-linking.test
Frederic Riss 99a07120d4 [dsymutil] Fix handling of common symbols.
llvm-dsymutil was misinterpreting the value of common symbols as their
address when it actually contains their size. This didn't impact
llvm-dsymutil's ability to link the debug information for common symbols
because these are always found by name and not by address. Things could
however go wrong when the size of a common object matched the object
file address of another symbol. Depending on the link order of the symbols
the common object might incorrectly evict this other object from the
address to symbol mapping, and then link the evicted symbol with a wrong
binary address.

Use the new ability to have symbols without an object file address to fix
this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259318 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-31 04:29:34 +00:00

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RUN: llvm-dsymutil -no-output -verbose -oso-prepend-path=%p %p/Inputs/basic.macho.x86_64 | FileCheck %s
RUN: llvm-dsymutil -no-output -verbose -oso-prepend-path=%p %p/Inputs/basic-lto.macho.x86_64 | FileCheck %s --check-prefix=CHECK-LTO
RUN: llvm-dsymutil -no-output -verbose -oso-prepend-path=%p %p/Inputs/basic-archive.macho.x86_64 | FileCheck %s --check-prefix=CHECK-ARCHIVE
RUN: llvm-dsymutil -no-output -verbose -oso-prepend-path=%p %p/Inputs/basic.macho.x86_64 %p/Inputs/basic-lto.macho.x86_64 %p/Inputs/basic-archive.macho.x86_64 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-LTO --check-prefix=CHECK-ARCHIVE
This test check the basic Dwarf linking process through the debug dumps.
================================= Simple link ================================
CHECK: DEBUG MAP OBJECT: {{.*}}basic1.macho.x86_64.o
CHECK: Input compilation unit:
CHECK-NEXT: TAG_compile_unit
CHECK-NOT: TAG
CHECK: AT_name {{.*}}basic1.c
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _main 0000000000000000 => 0000000100000ea0
CHECK-NEXT: DW_TAG_subprogram
CHECK-NEXT: DW_AT_name{{.*}}"main"
CHECK: DEBUG MAP OBJECT: {{.*}}basic2.macho.x86_64.o
CHECK: Input compilation unit:
CHECK-NEXT: TAG_compile_unit
CHECK-NOT: TAG
CHECK: AT_name {{.*}}basic2.c
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _private_int 0000000000000560 => 0000000100001008
CHECK-NEXT: DW_TAG_variable
CHECK-NEXT: DW_AT_name {{.*}}"private_int"
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _baz 0000000000000310 => 0000000100001000
CHECK-NEXT: DW_TAG_variable
CHECK-NEXT: DW_AT_name {{.*}}"baz"
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _foo 0000000000000020 => 0000000100000ed0
CHECK-NEXT: DW_TAG_subprogram
CHECK-NEXT: DW_AT_name {{.*}}"foo"
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _inc 0000000000000070 => 0000000100000f20
CHECK-NEXT: DW_TAG_subprogram
CHECK-NEXT: DW_AT_name {{.*}}"inc"
CHECK: DEBUG MAP OBJECT: {{.*}}basic3.macho.x86_64.o
CHECK: Input compilation unit:
CHECK-NEXT: TAG_compile_unit
CHECK-NOT: TAG
CHECK: AT_name {{.*}}basic3.c
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _val ffffffffffffffff => 0000000100001004
CHECK-NEXT: DW_TAG_variable
CHECK-NEXT: DW_AT_name {{.*}}"val"
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _bar 0000000000000020 => 0000000100000f40
CHECK-NEXT: DW_TAG_subprogram
CHECK-NEXT: DW_AT_name {{.*}}"bar"
CHECK-NOT: Found valid debug map entry
CHECK: Found valid debug map entry: _inc 0000000000000070 => 0000000100000f90
CHECK-NEXT: DW_TAG_subprogram
CHECK-NEXT: DW_AT_name {{.*}}"inc")
================================= LTO link ================================
CHECK-LTO: DEBUG MAP OBJECT: {{.*}}basic-lto.macho.x86_64.o
CHECK-LTO: Input compilation unit:
CHECK-LTO-NEXT: TAG_compile_unit
CHECK-LTO-NOT: TAG
CHECK-LTO: AT_name {{.*}}basic1.c
CHECK-LTO: Input compilation unit:
CHECK-LTO-NEXT: TAG_compile_unit
CHECK-LTO-NOT: TAG
CHECK-LTO: AT_name {{.*}}basic2.c
CHECK-LTO: Input compilation unit:
CHECK-LTO-NEXT: TAG_compile_unit
CHECK-LTO-NOT: TAG
CHECK-LTO: AT_name {{.*}}basic3.c
CHECK-LTO-NOT: Found valid debug map entry
CHECK-LTO: Found valid debug map entry: _main 0000000000000000 => 0000000100000f40
CHECK-LTO-NEXT: DW_TAG_subprogram
CHECK-LTO-NEXT: DW_AT_name {{.*}}"main"
CHECK-LTO-NOT: Found valid debug map entry
CHECK-LTO: Found valid debug map entry: _private_int 00000000000008e8 => 0000000100001008
CHECK-LTO-NEXT: DW_TAG_variable
CHECK-LTO-NEXT: DW_AT_name {{.*}}"private_int"
CHECK-LTO-NOT: Found valid debug map entry
CHECK-LTO: Found valid debug map entry: _baz 0000000000000658 => 0000000100001000
CHECK-LTO-NEXT: DW_TAG_variable
CHECK-LTO-NEXT: DW_AT_name {{.*}} "baz"
CHECK-LTO-NOT: Found valid debug map entry
CHECK-LTO: Found valid debug map entry: _foo 0000000000000010 => 0000000100000f50
CHECK-LTO-NEXT: DW_TAG_subprogram
CHECK-LTO-NEXT: DW_AT_name {{.*}}"foo"
CHECK-LTO-NOT: Found valid debug map entry
CHECK-LTO: Found valid debug map entry: _val 00000000000008ec => 0000000100001004
CHECK-LTO-NEXT: DW_TAG_variable
CHECK-LTO-NEXT: DW_AT_name {{.*}}"val"
CHECK-LTO-NOT: Found valid debug map entry
CHECK-LTO: Found valid debug map entry: _bar 0000000000000050 => 0000000100000f90
CHECK-LTO-NEXT: DW_TAG_subprogram
CHECK-LTO-NEXT: DW_AT_name {{.*}}"bar"
================================= Archive link ================================
CHECK-ARCHIVE: DEBUG MAP OBJECT: {{.*}}basic1.macho.x86_64.o
CHECK-ARCHIVE: Input compilation unit:
CHECK-ARCHIVE-NEXT: TAG_compile_unit
CHECK-ARCHIVE-NOT: TAG
CHECK-ARCHIVE: AT_name {{.*}}basic1.c
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _main 0000000000000000 => 0000000100000ea0
CHECK-ARCHIVE-NEXT: DW_TAG_subprogram
CHECK-ARCHIVE-NEXT: DW_AT_name{{.*}}"main"
CHECK-ARCHIVE: DEBUG MAP OBJECT: {{.*}}libbasic.a(basic2.macho.x86_64.o)
CHECK-ARCHIVE: Input compilation unit:
CHECK-ARCHIVE-NEXT: TAG_compile_unit
CHECK-ARCHIVE-NOT: TAG
CHECK-ARCHIVE: AT_name {{.*}}basic2.c
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _private_int 0000000000000560 => 0000000100001004
CHECK-ARCHIVE-NEXT: DW_TAG_variable
CHECK-ARCHIVE-NEXT: DW_AT_name {{.*}}"private_int"
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _baz 0000000000000310 => 0000000100001000
CHECK-ARCHIVE-NEXT: DW_TAG_variable
CHECK-ARCHIVE-NEXT: DW_AT_name {{.*}}"baz"
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _foo 0000000000000020 => 0000000100000ed0
CHECK-ARCHIVE-NEXT: DW_TAG_subprogram
CHECK-ARCHIVE-NEXT: DW_AT_name {{.*}}"foo"
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _inc 0000000000000070 => 0000000100000f20
CHECK-ARCHIVE-NEXT: DW_TAG_subprogram
CHECK-ARCHIVE-NEXT: DW_AT_name {{.*}}"inc"
CHECK-ARCHIVE: DEBUG MAP OBJECT: {{.*}}libbasic.a(basic3.macho.x86_64.o)
CHECK-ARCHIVE: Input compilation unit:
CHECK-ARCHIVE-NEXT: TAG_compile_unit
CHECK-ARCHIVE-NOT: TAG
CHECK-ARCHIVE: AT_name {{.*}}basic3.c
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _val ffffffffffffffff => 0000000100001008
CHECK-ARCHIVE-NEXT: DW_TAG_variable
CHECK-ARCHIVE-NEXT: DW_AT_name {{.*}}"val"
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _bar 0000000000000020 => 0000000100000f40
CHECK-ARCHIVE-NEXT: DW_TAG_subprogram
CHECK-ARCHIVE-NEXT: DW_AT_name {{.*}}"bar"
CHECK-ARCHIVE-NOT: Found valid debug map entry
CHECK-ARCHIVE: Found valid debug map entry: _inc 0000000000000070 => 0000000100000f90
CHECK-ARCHIVE-NEXT: DW_TAG_subprogram
CHECK-ARCHIVE-NEXT: DW_AT_name {{.*}}"inc")