133 changes: 133 additions & 0 deletions lld/test/core/gnulinkonce-resolve.objtxt
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# RUN: lld -core %s | FileCheck %s

#
# Test that gnu linkonce sections are parsed and the first section selected for symbol
# resolution
#

---
defined-atoms:
- name: f1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: f2
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: d1
scope: global
type: data
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: gnu-linkonce
references:
- kind: group-child
target: f1
- kind: group-child
target: f2
- kind: group-child
target: g1
- kind: group-child
target: d1
---
defined-atoms:
- name: f1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: f2
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: d1
scope: global
type: data
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: gnu-linkonce
references:
- kind: group-child
target: f1
- kind: group-child
target: f2
- kind: group-child
target: g1
- kind: group-child
target: d1
...

#CHECK: defined-atoms:
#CHECK: - name: g1
#CHECK: ref-name: [[PARENT:[a-zA-Z\.0-9_]+]]
#CHECK: scope: global
#CHECK: type: gnu-linkonce
#CHECK: references:
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDONE:[a-zA-Z\.0-9_]+]]
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDTWO:[a-zA-Z\.0-9_]+]]
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDTHREE:[a-zA-Z\.0-9_]+]]
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDFOUR:[a-zA-Z\.0-9_]+]]
#CHECK: - name: f1
#CHECK: ref-name: [[GCHILDONE]]
#CHECK: scope: global
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: - name: f2
#CHECK: ref-name: [[GCHILDTWO]]
#CHECK: scope: global
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: - name: g1
#CHECK: ref-name: [[GCHILDTHREE]]
#CHECK: scope: global
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: - name: d1
#CHECK: ref-name: [[GCHILDFOUR]]
#CHECK: scope: global
#CHECK: type: data
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: ...
112 changes: 112 additions & 0 deletions lld/test/core/gnulinkonce-simple.objtxt
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# RUN: lld -core %s | FileCheck %s

#
# Test that gnu linkonce sections are parsed properly when there is a reference to a
# atom from outside the gnu linkonce section.
#

---
defined-atoms:
- name: f1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: f2
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: d1
scope: global
type: data
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: gnu-linkonce
references:
- kind: group-child
target: f1
- kind: group-child
target: f2
- kind: group-child
target: d1
- kind: group-child
target: g1
- name: anotherfunction
scope: global
type: data
references:
- kind: layout-before
target: f1

undefined-atoms:
- name: f1
can-be-null: never
...

#CHECK: defined-atoms:
#CHECK: - name: g1
#CHECK: ref-name: [[PARENT:[a-zA-Z\.0-9_]+]]
#CHECK: scope: global
#CHECK: type: gnu-linkonce
#CHECK: references:
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDONE:[a-zA-Z\.0-9_]+]]
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDTWO:[a-zA-Z\.0-9_]+]]
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDTHREE:[a-zA-Z\.0-9_]+]]
#CHECK: - kind: group-child
#CHECK: offset: 0
#CHECK: target: [[GCHILDFOUR:[a-zA-Z\.0-9_]+]]
#CHECK: - name: f1
#CHECK: ref-name: [[GCHILDONE]]
#CHECK: scope: global
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: - name: f2
#CHECK: ref-name: [[GCHILDTWO]]
#CHECK: scope: global
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: - name: d1
#CHECK: ref-name: [[GCHILDTHREE]]
#CHECK: scope: global
#CHECK: type: data
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: - name: g1
#CHECK: ref-name: [[GCHILDFOUR]]
#CHECK: scope: global
#CHECK: references:
#CHECK: - kind: group-parent
#CHECK: offset: 0
#CHECK: target: [[PARENT]]
#CHECK: - name: anotherfunction
#CHECK: scope: global
#CHECK: type: data
#CHECK: references:
#CHECK: - kind: layout-before
#CHECK: offset: 0
#CHECK: target: [[GCHILDONE]]
#CHECK: ...
88 changes: 88 additions & 0 deletions lld/test/core/sectiongroup-gnulinkonce-error.objtxt
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# RUN: not lld -core %s 2>&1 | FileCheck %s

#
# Test that section groups/gnu linkonce sections are parsed and a merge error
# is displayed at the time of symbol resolution.
#

---
defined-atoms:
- name: f1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: f2
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: d1
scope: global
type: data
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: group-comdat
references:
- kind: group-child
target: f1
- kind: group-child
target: f2
- kind: group-child
target: g1
- kind: group-child
target: d1
---
defined-atoms:
- name: f1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: f2
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: code
references:
- kind: group-parent
target: g1
- name: d1
scope: global
type: data
references:
- kind: group-parent
target: g1
- name: g1
scope: global
type: gnu-linkonce
references:
- kind: group-child
target: f1
- kind: group-child
target: f2
- kind: group-child
target: g1
- kind: group-child
target: d1
...

#CHECK: SymbolTable: error while merging g1
#CHECK: LLVM ERROR: duplicate symbol error