similar to: [LLVMdev] gold and debug information

On Mon, Jul 19, 2010 at 11:06 PM, Guoliang Jin <jingl1345 at gmail.com> wrote: >  Hi, > > I would like to get the whole program bitcode with debug information in it. > > I tried to use CFLAGS = "-O4 -g", but it ends with the following error: > collect2: ld terminated with signal 6 [Aborted] > Unknown constant! > UNREACHABLE executed at >

On 7/20/2010 1:25 AM, Eli Friedman wrote: > On Mon, Jul 19, 2010 at 11:06 PM, Guoliang Jin<jingl1345 at gmail.com> wrote: >> Hi, >> >> I would like to get the whole program bitcode with debug information in it. >> >> I tried to use CFLAGS = "-O4 -g", but it ends with the following error: >> collect2: ld terminated with signal 6 [Aborted]

On Tue, Jul 20, 2010 at 8:49 AM, Rafael Espindola <espindola at google.com>wrote: > > export PATH="$LLVMPREFIX/bin:$LLVMGCCPREFIX/bin:$PATH" > > export CC="llvm-gcc -use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" > > export CXX="llvm-g++ -use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" > > export RANLIB=/bin/true > > export

> export PATH="$LLVMPREFIX/bin:$LLVMGCCPREFIX/bin:$PATH" > export CC="llvm-gcc -use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" > export CXX="llvm-g++ -use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" > export RANLIB=/bin/true > export CFLAGS="-O4 -g" > > then configure, make, and then hit the error. > > The error only happens if

> All the .o files are in the tarball. You can download it here (too large to > send through the list): > http://pages.cs.wisc.edu/~aliang/goldAndDebugTest.tar.gz There is also something strange with these files, buf.o is actually a .tar.gz file :-) > > Thanks, > Guoliang > Cheers, -- Rafael Ávila de Espíndola

On 7/21/2010 1:59 PM, Rafael Espindola wrote: >> I do not know how to get the ld invocation you need. If this command is not >> what you need, please tell me how to get the ld invocation. > Add -Wl,-debug to the llvm-gcc call. That should print the ld command > line in the end.

Hi there, I checked out the latest code from the repository, and wanna use the gold plugin, but I got the following: libLLVMgold.so: could not load plugin library Do you know why this is happening? Also I noticed the name of the library is changed to LLVMgold.so, and I just renamed it to libLLVMgold.so when I copied it. Is this the right thing to do? Thanks, Guoliang

On 25 June 2010 03:17, Guoliang Jin <jingl1345 at gmail.com> wrote: >  Hi there, > > I checked out the latest code from the repository, and wanna use the gold > plugin, but I got the following: > > libLLVMgold.so: could not load plugin library > > Do you know why this is happening? > > Also I noticed the name of the library is changed to LLVMgold.so, and I just

Some things to check: Run llvm-gcc a.c -emit-llvm -use-gold-plugin -Wl,debug This will print the link command line. What is it? Do you get the same error messages if you run just that? Are gold and the plugin linked with the same libstdc++? Cheers On Jun 5, 2010 11:50 PM, "Guoliang Jin" <jingl1345 at gmail.com> wrote: The errors are /usr/lib/libstdc++.so.6: version

The errors are /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found /lib/libc.so.6: version `GLIBC_2.7' not found I can not use it in the command line... Rafael Espindola wrote: >> However, I got >> "... >> checking for gcc... llvm-gcc -use-gold-plugin >> checking for C compiler default output file name... >> ... >> configure: error: C

On Thu, Jul 22, 2010 at 1:21 PM, Jin Guoliang <jingl1345 at gmail.com> wrote: > On Thu, Jul 22, 2010 at 11:35 AM, Devang Patel <devang.patel at gmail.com>wrote: > >> On Wed, Jul 21, 2010 at 9:50 AM, Jeffrey Yasskin <jyasskin at google.com> >> wrote: >> >> This (Unknown constant! in bitcode writer when -g is used) is a known >> >> bug in

Hi, I am using gold plugin with the option "-use-gold-plugin -Wl,-plugin-opt=also-emit-llvm" to compile apache. I objdumped the final executable httpd to httpd.S. I also compiled those per file bytecode into native code using the following: llc filename.o llvm-gcc -c filename.o.s -o filename.o.o Then I objdumped filename.o.o to filename.o.S and compared some functions between

On 6/25/2010 8:56 AM, Rafael Espindola wrote: > On 25 June 2010 03:17, Guoliang Jin<jingl1345 at gmail.com> wrote: >> Hi there, >> >> I checked out the latest code from the repository, and wanna use the gold >> plugin, but I got the following: >> >> libLLVMgold.so: could not load plugin library >> >> Do you know why this is happening?

Hi there, I compiled clang+gold using a gcc under path /s/gcc-4.3.1/bin/. Later on I do configure and make for flex-2.5.35, and the following command is invoked: "/path/to/my/gold/ld" --hash-style=gnu --no-add-needed --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o flex /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../crt1.o

Thanks Rafael. I compiled llvm-gcc by myself, and I can compile mysql now. Right now, when I run llvm-gcc a.c -emit-llvm -use-gold-plugin -Wl,debug I got ld: error: cannot open debug: No such file or directory collect2: ld returned 1 exit status I do not know why this is happening. Rafael Espindola wrote: > > Some things to check: > > Run llvm-gcc a.c -emit-llvm -use-gold-plugin

Hi, I found some posts on the topic of whole program bitcode and gold plugin. I put lto_codegen_write_merged_modules(cg, "/path/to/output.bc") into gold-plugin.cpp all_symbols_read_hook() and compiled one autotooled program (ftp://ftp.gnu.org/gnu/diction/diction-1.11.tar.gz) as described in the gold plugin document, however, I still did not see the output.bc. Can anyone has

On 6 June 2010 13:48, Guoliang Jin <jingl1345 at gmail.com> wrote: > Thanks Rafael. > > I compiled llvm-gcc by myself, and I can compile mysql now. > > Right now, when I run llvm-gcc a.c -emit-llvm -use-gold-plugin -Wl,debug > I got > ld: error: cannot open debug: No such file or directory > collect2: ld returned 1 exit status > > I do not know why this is

On Wed, Jul 21, 2010 at 9:50 AM, Jeffrey Yasskin <jyasskin at google.com> wrote: >> This (Unknown constant! in bitcode writer when -g is used) is a known >> bug in CloneModule, because it is not cloning MDNodes appropriately. > > What's the link to the bug report? Are you fixing it? PR 7689. Fixed in r109117. - Devang

On 19 August 2010 01:25, Guoliang Jin <jingl1345 at gmail.com> wrote: >  Hi, > > I am using gold plugin with the option "-use-gold-plugin > -Wl,-plugin-opt=also-emit-llvm" to compile apache. > > I objdumped the final executable httpd to httpd.S. > > I also compiled those per file bytecode into native code using the > following: > llc filename.o >

Hi, I want to pass parameter to a analysis pass. My pass need to use some result from some other tools. I can hard code a file name into my pass, and let my pass read input there, but what if I do not want the file name to be hard coded? Is it possible to do that? If yes, where can I find some documentation about it? Thanks, Guoliang