reference, declaration → definition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced

    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30

# REQUIRES: x86

# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %tundefined.o
# RUN: echo "foo=42" | llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %tdefined.o
# RUN: echo "call foo" | llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %treference.o

# RUN: echo "SECTIONS { .bar : { PROVIDE(foo = .); } }" > %t.script

# Case 1: Provided symbol is undefined and not referenced - empty section should be removed.
# RUN: ld.lld %tundefined.o -T %t.script -o %t1.elf
# RUN: llvm-readobj --sections %t1.elf | FileCheck %s --check-prefix=NOSECTION

# Case 2: Provided symbol is undefined and referenced - empty section should not be removed.
# RUN: ld.lld %tundefined.o %treference.o -T %t.script -o %t2.elf
# RUN: llvm-readobj --sections %t2.elf | FileCheck %s --check-prefix=SECTION

# Case 3: Provided symbol is defined and not referenced - empty section should be removed.
# RUN: ld.lld %tdefined.o -T %t.script -o %t3.elf
# RUN: llvm-readobj --sections %t3.elf | FileCheck %s --check-prefix=NOSECTION

# Case 4: Provided symbol is defined and referenced - empty section should not be removed.
# RUN: ld.lld %tdefined.o %treference.o -T %t.script -o %t4.elf
# RUN: llvm-readobj --sections %t4.elf | FileCheck %s --check-prefix=SECTION

.global _start
_start:
    ret

# SECTION: .bar
# NOSECTION-NOT: .bar