[LLVMdev] How much memory clang llvm needs for debug compiling?

[David Tweed]

Hi,

Just a question: are you doing the actual build on a 32-bit x86 machine (not
a 64-bit x86-64 machine)? This seems to be sensible, but I've rarely had
problems doing a debug build on x86 within 2GB of memory (after ensuring
only one link at once); it's always been the x86-64 builds that are tricky
under low memory.

Regards,
Dave

-----Original Message-----
From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Nancy
Sent: 02 June 2014 14:47
To: llvmbugs at cs.uiuc.edu; llvmdev at cs.uiuc.edu
Subject: Re: [LLVMdev] How much memory clang llvm needs for debug compiling?

$cd llvm-build
$../llvm/configure --enable-targets=x86


make[4]:正在离开目录
`/home/nancy/work/build-llvm/tools/clang/tools/libclang'
make[4]: 正在进入目录
`/home/nancy/work/build-llvm/tools/clang/tools/c-index-test'
llvm[4]: Linking Debug+Asserts executable c-index-test
llvm[4]: ======= Finished Linking Debug+Asserts Executable c-index-test
make[4]:正在离开目录
`/home/nancy/work/build-llvm/tools/clang/tools/c-index-test'
make[4]: 正在进入目录
`/home/nancy/work/build-llvm/tools/clang/tools/c-arcmt-test'
llvm[4]: Linking Debug+Asserts executable c-arcmt-test
llvm[4]: ======= Finished Linking Debug+Asserts Executable c-arcmt-test
make[4]:正在离开目录
`/home/nancy/work/build-llvm/tools/clang/tools/c-arcmt-test'
make[4]: 正在进入目录 `/home/nancy/work/build-llvm/tools/clang/tools/driver'
llvm[4]: Linking Debug+Asserts executable clang
/usr/bin/ld: 最终连接失败: 内存耗尽 ( in english : Memory exhausted)
collect2: error: ld returned 1 exit status
make[4]: *** [/home/nancy/work/build-llvm/Debug+Asserts/bin/clang] 错误 1
make[4]:正在离开目录 `/home/nancy/work/build-llvm/tools/clang/tools/driver'
make[3]: *** [driver/.makeall] 错误 2
make[3]:正在离开目录 `/home/nancy/work/build-llvm/tools/clang/tools'
make[2]: *** [all] 错误 1
make[2]:正在离开目录 `/home/nancy/work/build-llvm/tools/clang'
make[1]: *** [clang/.makeall] 错误 2
make[1]:正在离开目录 `/home/nancy/work/build-llvm/tools'
make: *** [all] 错误 1


What should I do to make debug enabled compiling successful? Anyone
can tell me a tiny configuration which can save memory? I only have 3G
RAM, Ubuntu kylin.


-- 
Best Regards,
Yu Rong Tan

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