343580097d
-warn-common Warn when a common symbol is combined with another common symbol or with a symbol definition. Unix linkers allow this somewhat sloppy practice, but linkers on some other operating systems do not. This option allows you to find potential problems from combining global symbols. Differential revision: http://reviews.llvm.org/D17998 llvm-svn: 263413
26 lines
916 B
ArmAsm
26 lines
916 B
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/warn-common.s -o %t2.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/warn-common2.s -o %t3.o
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## Report multiple commons if warn-common is specified
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# RUN: ld.lld --warn-common %t1.o %t2.o -o %t.out 2>&1 | FileCheck %s --check-prefix=WARN
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# WARN: multiple common of arr
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## no-warn-common is ignored
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# RUN: ld.lld --no-warn-common %t1.o %t2.o -o %t.out
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# RUN: llvm-readobj %t.out > /dev/null
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## Report if common is overridden
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# RUN: ld.lld --warn-common %t1.o %t3.o -o %t.out 2>&1 | FileCheck %s --check-prefix=OVER
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# OVER: common arr is overridden
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## Report if common is overridden, but in different order
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# RUN: ld.lld --warn-common %t3.o %t1.o -o %t.out 2>&1 | FileCheck %s --check-prefix=OVER
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.globl _start
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_start:
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.type arr,@object
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.comm arr,4,4
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