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[ELF] Implemented -Bsymbolic-functions command line option
-Bsymbolic-functions: When creating a shared library, bind references to global function symbols to the definition within the shared library, if any. This patch also fixed behavior of already existent -Bsymbolic: previously PLT entries were created even if -Bsymbolic was specified. Differential revision: http://reviews.llvm.org/D16411 llvm-svn: 259481
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George Rimar
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Feb 2, 2016
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Original file line number | Diff line number | Diff line change |
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o | ||
// RUN: ld.lld -shared %t.o -o %t0.so | ||
// RUN: ld.lld -shared -Bsymbolic %t.o -o %t1.so | ||
// RUN: ld.lld -shared -Bsymbolic-functions %t.o -o %t2.so | ||
// RUN: llvm-readobj -s %t0.so | FileCheck -check-prefix=NOOPTION %s | ||
// RUN: llvm-readobj -s %t1.so | FileCheck -check-prefix=SYMBOLIC %s | ||
// RUN: llvm-readobj -s %t2.so | FileCheck -check-prefix=SYMBOLIC %s | ||
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// NOOPTION: Section { | ||
// NOOPTION: Name: .plt | ||
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// SYMBOLIC: Section { | ||
// SYMBOLIC-NOT: Name: .plt | ||
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.text | ||
.globl foo | ||
.type foo,@function | ||
foo: | ||
nop | ||
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.globl bar | ||
.type bar,@function | ||
bar: | ||
nop | ||
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.globl do | ||
.type do,@function | ||
do: | ||
callq foo@PLT | ||
callq bar@PLT |