66ac1d6152
This patch only implements support for version scripts of the form:
{ [ global: symbol1; symbol2; [...]; symbolN; ] local: *; };
No wildcards are supported, other than for the local entry. Symbol versioning
is also not supported.
It works by introducing a new Symbol flag which tracks whether a symbol
appears in the global section of a version script.
This patch also simplifies the logic in SymbolBody::isPreemptible(), and
teaches it to handle the case where symbols with default visibility in DSOs
do not appear in the dynamic symbol table because of a version script.
Fixes PR27482.
Differential Revision: http://reviews.llvm.org/D19430
llvm-svn: 267208
23 lines
550 B
LLVM
23 lines
550 B
LLVM
; REQUIRES: x86
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; RUN: llvm-as %s -o %t.o
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; RUN: echo "{ global: foo; local: *; };" > %t.script
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; RUN: ld.lld -m elf_x86_64 %t.o -o %t2 -shared --version-script %t.script -save-temps
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; RUN: llvm-dis < %t2.lto.bc | FileCheck %s
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target triple = "x86_64-unknown-linux-gnu"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @foo() {
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ret void
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}
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define void @bar() {
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ret void
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}
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; Check that foo is not internalized.
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; CHECK: define void @foo()
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; Check that bar is correctly internalized.
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; CHECK: define internal void @bar()
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