1# REQUIRES: x86 2 3# Tests handling of the comdat selection type. 4# (Except associative which is tested in associative-comdat.s and 5# comdat-selection-associate-largest.s instead.) 6 7# Create obj files with each selection type. 8# RUN: sed -e s/SEL/discard/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.discard.obj 9# RUN: sed -e s/SEL/discard/ -e s/.long/.short/ -e s/1/2/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.discard.short.2.obj 10# RUN: sed -e s/SEL/one_only/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.one_only.obj 11# RUN: sed -e s/SEL/same_size/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.same_size.obj 12# RUN: sed -e s/SEL/same_size/ -e s/.long/.short/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.same_size.short.obj 13# RUN: sed -e s/SEL/same_contents/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.same_contents.obj 14# RUN: sed -e s/SEL/same_contents/ -e s/.long/.short/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.same_contents.short.obj 15# RUN: sed -e s/SEL/same_contents/ -e s/1/2/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.same_contents.2.obj 16# RUN: sed -e s/SEL/largest/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.largest.obj 17# RUN: sed -e s/SEL/largest/ -e s/.long/.short/ -e s/1/2/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.largest.short.2.obj 18# RUN: sed -e s/SEL/newest/ %s | llvm-mc -triple x86_64-pc-win32 -filetype=obj -o %t.newest.obj 19 20 .section .text$nm, "", SEL, symbol 21 .globl symbol 22symbol: 23 .long 1 24 25# First, pass each selection type twice. All should link fine except for 26# one_only which should report a duplicate symbol error and newest which 27# link.exe (and hence lld-link) doesn't understand. 28 29# RUN: cp %t.discard.obj %t.obj && lld-link /dll /noentry /nodefaultlib %t.discard.obj %t.obj 30# RUN: cp %t.one_only.obj %t.obj && not lld-link /dll /noentry /nodefaultlib %t.one_only.obj %t.obj 2>&1 | FileCheck --check-prefix=ONEONE %s 31# ONEONE: lld-link: error: duplicate symbol: symbol 32# RUN: cp %t.same_size.obj %t.obj && lld-link /dll /noentry /nodefaultlib %t.same_size.obj %t.obj 33# RUN: cp %t.same_contents.obj %t.obj && lld-link /dll /noentry /nodefaultlib %t.same_contents.obj %t.obj 34# RUN: cp %t.largest.obj %t.obj && lld-link /dll /noentry /nodefaultlib %t.largest.obj %t.obj 35# RUN: cp %t.newest.obj %t.obj && not lld-link /dll /noentry /nodefaultlib %t.newest.obj %t.obj 2>&1 | FileCheck --check-prefix=NEWNEW %s 36# NEWNEW: lld-link: error: unknown comdat type 7 for symbol 37 38# /force doesn't affect errors about unknown comdat types. 39# RUN: cp %t.newest.obj %t.obj && not lld-link /force /dll /noentry /nodefaultlib %t.newest.obj %t.obj 2>&1 | FileCheck --check-prefix=NEWNEWFORCE %s 40# NEWNEWFORCE: lld-link: error: unknown comdat type 7 for symbol 41 42# Check that same_size, same_contents, largest do what they're supposed to. 43 44# Check that the "same_size" selection produces an error if passed two symbols 45# with different size. 46# RUN: not lld-link /dll /noentry /nodefaultlib %t.same_size.obj %t.same_size.short.obj 2>&1 | FileCheck --check-prefix=SAMESIZEDUPE %s 47# SAMESIZEDUPE: lld-link: error: duplicate symbol: symbol 48 49# Check that the "same_contents" selection produces an error if passed two 50# symbols with different contents. 51# RUN: not lld-link /dll /noentry /nodefaultlib %t.same_contents.obj %t.same_contents.2.obj 2>&1 | FileCheck --check-prefix=SAMECONTENTSDUPE1 %s 52# SAMECONTENTSDUPE1: lld-link: error: duplicate symbol: symbol 53# RUN: not lld-link /dll /noentry /nodefaultlib %t.same_contents.obj %t.same_contents.2.obj 2>&1 | FileCheck --check-prefix=SAMECONTENTSDUPE2 %s 54# SAMECONTENTSDUPE2: lld-link: error: duplicate symbol: symbol 55 56# Check that the "largest" selection picks the larger comdat (independent of 57# the order the .obj files are passed on the commandline). 58# RUN: lld-link /opt:noref /include:symbol /dll /noentry /nodefaultlib %t.largest.obj %t.largest.short.2.obj /out:%t.exe 59# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=LARGEST1 %s 60# LARGEST1: Contents of section .text: 61# LARGEST1: 180001000 01000000 .... 62 63# FIXME: Make this pass when /opt:noref is passed. 64# RUN: lld-link /include:symbol /dll /noentry /nodefaultlib %t.largest.short.2.obj %t.largest.obj /out:%t.exe 65# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=LARGEST2 %s 66# LARGEST2: Contents of section .text: 67# LARGEST2: 180001000 01000000 .... 68 69 70# Test linking the same symbol with different comdat selection types. 71# link.exe generally rejects this, except for "largest" which is allowed to 72# combine with everything (https://bugs.llvm.org/show_bug.cgi?id=40094#c7). 73# lld-link rejects all comdat selection type mismatches. Spot-test just a few 74# combinations. 75 76# RUN: not lld-link /verbose /dll /noentry /nodefaultlib %t.discard.obj %t.one_only.obj 2>&1 | FileCheck --check-prefix=DISCARDONE %s 77# DISCARDONE: lld-link: conflicting comdat type for symbol: 2 in 78# DISCARDONE: lld-link: error: duplicate symbol: symbol 79# RUN: lld-link /verbose /force /dll /noentry /nodefaultlib %t.discard.obj %t.one_only.obj 2>&1 | FileCheck --check-prefix=DISCARDONEFORCE %s 80# DISCARDONEFORCE: lld-link: conflicting comdat type for symbol: 2 in 81# DISCARDONEFORCE: lld-link: warning: duplicate symbol: symbol 82 83# Make sure the error isn't depending on the order of .obj files. 84# RUN: not lld-link /verbose /dll /noentry /nodefaultlib %t.one_only.obj %t.discard.obj 2>&1 | FileCheck --check-prefix=ONEDISCARD %s 85# ONEDISCARD: lld-link: conflicting comdat type for symbol: 1 in 86# ONEDISCARD: lld-link: error: duplicate symbol: symbol 87 88# RUN: not lld-link /verbose /dll /noentry /nodefaultlib %t.same_contents.obj %t.same_size.obj 2>&1 | FileCheck --check-prefix=CONTENTSSIZE %s 89# CONTENTSSIZE: lld-link: conflicting comdat type for symbol: 4 in 90# CONTENTSSIZE: lld-link: error: duplicate symbol: symbol 91 92# Check that linking one 'discard' and one 'largest' has the effect of 93# 'largest'. 94# RUN: lld-link /dll /noentry /nodefaultlib %t.discard.short.2.obj %t.largest.obj 95# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=DISCARDLARGEST %s 96# DISCARDLARGEST: Contents of section .text: 97# DISCARDLARGEST: 180001000 01000000 .... 98# RUN: lld-link /dll /noentry /nodefaultlib %t.largest.obj %t.discard.short.2.obj 99# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=LARGESTDISCARD %s 100# LARGESTDISCARD: Contents of section .text: 101# LARGESTDISCARD: 180001000 01000000 .... 102 103 104# These cases are accepted by link.exe but not by lld-link. 105# RUN: not lld-link /verbose /dll /noentry /nodefaultlib %t.largest.obj %t.one_only.obj 2>&1 | FileCheck --check-prefix=LARGESTONE %s 106# LARGESTONE: lld-link: conflicting comdat type for symbol: 6 in 107# LARGESTONE: lld-link: error: duplicate symbol: symbol 108