[Desktop-packages] [Bug 1488254]
abi_tag implementation was committed to Clang
http://reviews.llvm.org/D18035 Please start testing on your apps and
report issues.
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to llvm-toolchain-3.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1488254
Title:
clang++ no longer ABI-compatible with g++
Status in LLVM:
Confirmed
Status in llvm-toolchain-3.6 package in Ubuntu:
Confirmed
Bug description:
$ cat foo.cc
#include
std::string hello = "Hello, world!\n";
$ cat bar.cc
#include
#include
extern std::string hello;
int main() {
std::cout << hello;
return 0;
}
$ g++ -c foo.cc && g++ foo.o bar.cc && ./a.out
Hello, world!
$ clang++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
Hello, world!
$ g++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
/tmp/bar-34fb23.o: In function `main':
bar.cc:(.text+0x14): undefined reference to `hello'
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
$ clang++ -c foo.cc && g++ foo.o bar.cc && ./a.out
/tmp/ccqU38Mh.o: In function `main':
bar.cc:(.text+0x5): undefined reference to `hello[abi:cxx11]'
collect2: error: ld returned 1 exit status
In practice, this means that many programs using C++ libraries other
than libstdc++ fail to compile with clang++. For example, mosh fails
with undefined references to
google::protobuf::internal::empty_string_,
google::protobuf::MessageLite::InitializationErrorString() const, and
google::protobuf::MessageLite::SerializeAsString() const.
To manage notifications about this bug go to:
https://bugs.launchpad.net/llvm/+bug/1488254/+subscriptions
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[Desktop-packages] [Bug 1488254]
My patch for Sema part with of the attribute under review is here
http://reviews.llvm.org/D17567
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to llvm-toolchain-3.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1488254
Title:
clang++ no longer ABI-compatible with g++
Status in LLVM:
Confirmed
Status in llvm-toolchain-3.6 package in Ubuntu:
Confirmed
Bug description:
$ cat foo.cc
#include
std::string hello = "Hello, world!\n";
$ cat bar.cc
#include
#include
extern std::string hello;
int main() {
std::cout << hello;
return 0;
}
$ g++ -c foo.cc && g++ foo.o bar.cc && ./a.out
Hello, world!
$ clang++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
Hello, world!
$ g++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
/tmp/bar-34fb23.o: In function `main':
bar.cc:(.text+0x14): undefined reference to `hello'
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
$ clang++ -c foo.cc && g++ foo.o bar.cc && ./a.out
/tmp/ccqU38Mh.o: In function `main':
bar.cc:(.text+0x5): undefined reference to `hello[abi:cxx11]'
collect2: error: ld returned 1 exit status
In practice, this means that many programs using C++ libraries other
than libstdc++ fail to compile with clang++. For example, mosh fails
with undefined references to
google::protobuf::internal::empty_string_,
google::protobuf::MessageLite::InitializationErrorString() const, and
google::protobuf::MessageLite::SerializeAsString() const.
To manage notifications about this bug go to:
https://bugs.launchpad.net/llvm/+bug/1488254/+subscriptions
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[Desktop-packages] [Bug 1488254]
Status update:
- Sema part was committed http://reviews.llvm.org/D17567
- Mangler part was sent for review http://reviews.llvm.org/D18035
Best regards,
Dmitry
==
Software Engineer
Intel Compiler Team
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to llvm-toolchain-3.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1488254
Title:
clang++ no longer ABI-compatible with g++
Status in LLVM:
Confirmed
Status in llvm-toolchain-3.6 package in Ubuntu:
Confirmed
Bug description:
$ cat foo.cc
#include
std::string hello = "Hello, world!\n";
$ cat bar.cc
#include
#include
extern std::string hello;
int main() {
std::cout << hello;
return 0;
}
$ g++ -c foo.cc && g++ foo.o bar.cc && ./a.out
Hello, world!
$ clang++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
Hello, world!
$ g++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
/tmp/bar-34fb23.o: In function `main':
bar.cc:(.text+0x14): undefined reference to `hello'
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
$ clang++ -c foo.cc && g++ foo.o bar.cc && ./a.out
/tmp/ccqU38Mh.o: In function `main':
bar.cc:(.text+0x5): undefined reference to `hello[abi:cxx11]'
collect2: error: ld returned 1 exit status
In practice, this means that many programs using C++ libraries other
than libstdc++ fail to compile with clang++. For example, mosh fails
with undefined references to
google::protobuf::internal::empty_string_,
google::protobuf::MessageLite::InitializationErrorString() const, and
google::protobuf::MessageLite::SerializeAsString() const.
To manage notifications about this bug go to:
https://bugs.launchpad.net/llvm/+bug/1488254/+subscriptions
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[Desktop-packages] [Bug 1488254]
Hi Stefan,
This is an important issue in Clang and I would like to move on with
patch http://reviews.llvm.org/D12834 (also see my last comment there).
If you don't mind, I'll get your patch split it into smaller patches and
start resolving reviewers comments. Please let me know if you have
cycles and would like to keep working on this patch yourself.
Best regards,
Dmitry
==
Software Engineer
Intel Compiler Teaml
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to llvm-toolchain-3.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1488254
Title:
clang++ no longer ABI-compatible with g++
Status in LLVM:
Confirmed
Status in llvm-toolchain-3.6 package in Ubuntu:
Confirmed
Bug description:
$ cat foo.cc
#include
std::string hello = "Hello, world!\n";
$ cat bar.cc
#include
#include
extern std::string hello;
int main() {
std::cout << hello;
return 0;
}
$ g++ -c foo.cc && g++ foo.o bar.cc && ./a.out
Hello, world!
$ clang++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
Hello, world!
$ g++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
/tmp/bar-34fb23.o: In function `main':
bar.cc:(.text+0x14): undefined reference to `hello'
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
$ clang++ -c foo.cc && g++ foo.o bar.cc && ./a.out
/tmp/ccqU38Mh.o: In function `main':
bar.cc:(.text+0x5): undefined reference to `hello[abi:cxx11]'
collect2: error: ld returned 1 exit status
In practice, this means that many programs using C++ libraries other
than libstdc++ fail to compile with clang++. For example, mosh fails
with undefined references to
google::protobuf::internal::empty_string_,
google::protobuf::MessageLite::InitializationErrorString() const, and
google::protobuf::MessageLite::SerializeAsString() const.
To manage notifications about this bug go to:
https://bugs.launchpad.net/llvm/+bug/1488254/+subscriptions
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More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1488254]
I'll take a look to the change and will investigate why tests fail on
the proposed patch. Failing tests are not abi_tag specific so it should
be no changes on them.
Best regards,
Dmitry
==
Software Engineer
Intel Compiler Team
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to llvm-toolchain-3.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1488254
Title:
clang++ no longer ABI-compatible with g++
Status in LLVM:
Confirmed
Status in llvm-toolchain-3.6 package in Ubuntu:
Confirmed
Bug description:
$ cat foo.cc
#include
std::string hello = "Hello, world!\n";
$ cat bar.cc
#include
#include
extern std::string hello;
int main() {
std::cout << hello;
return 0;
}
$ g++ -c foo.cc && g++ foo.o bar.cc && ./a.out
Hello, world!
$ clang++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
Hello, world!
$ g++ -c foo.cc && clang++ foo.o bar.cc && ./a.out
/tmp/bar-34fb23.o: In function `main':
bar.cc:(.text+0x14): undefined reference to `hello'
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
$ clang++ -c foo.cc && g++ foo.o bar.cc && ./a.out
/tmp/ccqU38Mh.o: In function `main':
bar.cc:(.text+0x5): undefined reference to `hello[abi:cxx11]'
collect2: error: ld returned 1 exit status
In practice, this means that many programs using C++ libraries other
than libstdc++ fail to compile with clang++. For example, mosh fails
with undefined references to
google::protobuf::internal::empty_string_,
google::protobuf::MessageLite::InitializationErrorString() const, and
google::protobuf::MessageLite::SerializeAsString() const.
To manage notifications about this bug go to:
https://bugs.launchpad.net/llvm/+bug/1488254/+subscriptions
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Post to : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
