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
127 lines
3.4 KiB
ArmAsm
127 lines
3.4 KiB
ArmAsm
# REQUIRES: x86
|
|
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
|
|
# RUN: ld.lld -shared %t2.o -soname shared -o %t2.so
|
|
|
|
# RUN: echo "{ global: foo1; foo3; local: *; };" > %t.script
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
|
|
# RUN: ld.lld --version-script %t.script -shared %t.o %t2.so -o %t.so
|
|
# RUN: llvm-readobj -dyn-symbols %t.so | FileCheck --check-prefix=DSO %s
|
|
|
|
# RUN: echo "{ local: *; };" > %t3.script
|
|
# RUN: ld.lld --version-script %t3.script -shared %t.o %t2.so -o %t3.so
|
|
# RUN: llvm-readobj -dyn-symbols %t3.so | FileCheck --check-prefix=DSO2 %s
|
|
|
|
# --version-script filters --dynamic-list.
|
|
# RUN: echo "{ foo1; foo2; };" > %t.list
|
|
# RUN: ld.lld --version-script %t.script --dynamic-list %t.list %t.o %t2.so -o %t
|
|
# RUN: llvm-readobj -dyn-symbols %t | FileCheck --check-prefix=EXE %s
|
|
|
|
# DSO: DynamicSymbols [
|
|
# DSO-NEXT: Symbol {
|
|
# DSO-NEXT: Name: @ (0)
|
|
# DSO-NEXT: Value: 0x0
|
|
# DSO-NEXT: Size: 0
|
|
# DSO-NEXT: Binding: Local (0x0)
|
|
# DSO-NEXT: Type: None (0x0)
|
|
# DSO-NEXT: Other: 0
|
|
# DSO-NEXT: Section: Undefined (0x0)
|
|
# DSO-NEXT: }
|
|
# DSO-NEXT: Symbol {
|
|
# DSO-NEXT: Name: bar@ (1)
|
|
# DSO-NEXT: Value: 0x0
|
|
# DSO-NEXT: Size: 0
|
|
# DSO-NEXT: Binding: Global (0x1)
|
|
# DSO-NEXT: Type: Function (0x2)
|
|
# DSO-NEXT: Other: 0
|
|
# DSO-NEXT: Section: Undefined (0x0)
|
|
# DSO-NEXT: }
|
|
# DSO-NEXT: Symbol {
|
|
# DSO-NEXT: Name: foo1@ (5)
|
|
# DSO-NEXT: Value: 0x1000
|
|
# DSO-NEXT: Size: 0
|
|
# DSO-NEXT: Binding: Global (0x1)
|
|
# DSO-NEXT: Type: None (0x0)
|
|
# DSO-NEXT: Other: 0
|
|
# DSO-NEXT: Section: .text (0x5)
|
|
# DSO-NEXT: }
|
|
# DSO-NEXT: Symbol {
|
|
# DSO-NEXT: Name: foo3@ (10)
|
|
# DSO-NEXT: Value: 0x1007
|
|
# DSO-NEXT: Size: 0
|
|
# DSO-NEXT: Binding: Global (0x1)
|
|
# DSO-NEXT: Type: None (0x0)
|
|
# DSO-NEXT: Other: 0
|
|
# DSO-NEXT: Section: .text (0x5)
|
|
# DSO-NEXT: }
|
|
# DSO-NEXT: ]
|
|
|
|
# DSO2: DynamicSymbols [
|
|
# DSO2-NEXT: Symbol {
|
|
# DSO2-NEXT: Name: @ (0)
|
|
# DSO2-NEXT: Value: 0x0
|
|
# DSO2-NEXT: Size: 0
|
|
# DSO2-NEXT: Binding: Local (0x0)
|
|
# DSO2-NEXT: Type: None (0x0)
|
|
# DSO2-NEXT: Other: 0
|
|
# DSO2-NEXT: Section: Undefined (0x0)
|
|
# DSO2-NEXT: }
|
|
# DSO2-NEXT: Symbol {
|
|
# DSO2-NEXT: Name: bar@ (1)
|
|
# DSO2-NEXT: Value: 0x0
|
|
# DSO2-NEXT: Size: 0
|
|
# DSO2-NEXT: Binding: Global (0x1)
|
|
# DSO2-NEXT: Type: Function (0x2)
|
|
# DSO2-NEXT: Other: 0
|
|
# DSO2-NEXT: Section: Undefined (0x0)
|
|
# DSO2-NEXT: }
|
|
# DSO2-NEXT: ]
|
|
|
|
# EXE: DynamicSymbols [
|
|
# EXE-NEXT: Symbol {
|
|
# EXE-NEXT: Name: @ (0)
|
|
# EXE-NEXT: Value: 0x0
|
|
# EXE-NEXT: Size: 0
|
|
# EXE-NEXT: Binding: Local (0x0)
|
|
# EXE-NEXT: Type: None (0x0)
|
|
# EXE-NEXT: Other: 0
|
|
# EXE-NEXT: Section: Undefined (0x0)
|
|
# EXE-NEXT: }
|
|
# EXE-NEXT: Symbol {
|
|
# EXE-NEXT: Name: bar@ (1)
|
|
# EXE-NEXT: Value: 0x0
|
|
# EXE-NEXT: Size: 0
|
|
# EXE-NEXT: Binding: Global (0x1)
|
|
# EXE-NEXT: Type: Function (0x2)
|
|
# EXE-NEXT: Other: 0
|
|
# EXE-NEXT: Section: Undefined (0x0)
|
|
# EXE-NEXT: }
|
|
# EXE-NEXT: Symbol {
|
|
# EXE-NEXT: Name: foo1@ (5)
|
|
# EXE-NEXT: Value: 0x11000
|
|
# EXE-NEXT: Size: 0
|
|
# EXE-NEXT: Binding: Global (0x1)
|
|
# EXE-NEXT: Type: None (0x0)
|
|
# EXE-NEXT: Other: 0
|
|
# EXE-NEXT: Section: .text (0x5)
|
|
# EXE-NEXT: }
|
|
# EXE-NEXT: ]
|
|
|
|
.globl foo1
|
|
foo1:
|
|
call bar@PLT
|
|
ret
|
|
|
|
.globl foo2
|
|
foo2:
|
|
ret
|
|
|
|
.globl foo3
|
|
foo3:
|
|
call foo2@PLT
|
|
ret
|
|
|
|
.globl _start
|
|
_start:
|
|
ret
|