linker

Is the lld linker a drop-in replacement for ld and gold?

不羁岁月 提交于 2019-12-23 07:07:13
问题 The linker from the LLVM project lld is currently developed with new features added week by week. Its developers promise that lld is faster than ld . How does it compete compared to gold ? Is lld a drop-in replacement for ld ? With gold there are some hoops to jump through. 回答1: One of the LLD developers, Rui Ueyama, looks back at the progress LLD did in 2016, see http://lists.llvm.org/pipermail/llvm-dev/2016-December/107981.html. "Now I'm pretty sure that that [LLD] is going to be a serious

Is the lld linker a drop-in replacement for ld and gold?

百般思念 提交于 2019-12-23 07:07:06
问题 The linker from the LLVM project lld is currently developed with new features added week by week. Its developers promise that lld is faster than ld . How does it compete compared to gold ? Is lld a drop-in replacement for ld ? With gold there are some hoops to jump through. 回答1: One of the LLD developers, Rui Ueyama, looks back at the progress LLD did in 2016, see http://lists.llvm.org/pipermail/llvm-dev/2016-December/107981.html. "Now I'm pretty sure that that [LLD] is going to be a serious

Regular Expressions in OCaml

旧巷老猫 提交于 2019-12-23 06:48:17
问题 I want to use regexps in OCaml and it seems that Str module provides these functionalities. So I tried with a simple program: open Str let regx = regexp "." but it gives me the following error File "lol.ml", line 1, characters 0-1: Error: Error while linking lol.cmo: Reference to undefined global `Str' As if module is not present but if I remove open Str it says that regexp is an unbound value. I don't get what kind of issue it is, Str should be a standard module (according to http://caml

Linker Script: Put a particular file at a later position

浪尽此生 提交于 2019-12-23 06:06:38
问题 I'd like to write a linker script looking something like this: SECTIONS { . = 0x0; .startup . : { startup.o(.text) } .text : { *(.text) } .data : { *(.data) } .bss : { *(.bss COMMON) } . = 0x4000; other.text : { other.o(.text) } other.data : { other.o(.data) } other.bss : { other.o(.bss) } } My intention here is to have, in this order: a section with the .text from startup.o .text , .data and .bss containing those sections from all other input files besides other.o the .text , .data and .bss

undefined reference to symbol even when nm indicates that this symbol is present in the shared library 2

本秂侑毒 提交于 2019-12-23 06:04:07
问题 I found same question here but the answer doesn't help me. I'm writing test app to use nglib library. But when I try to compile it I get undefined references: $ g++ test1.cpp -L. -lnglib test1.cpp: In function ‘int main()’: /tmp/cchcKZfx.o:test1.cpp:function main: error: undefined reference to 'Ng_Init()' /tmp/cchcKZfx.o:test1.cpp:function main: error: undefined reference to 'Ng_NewMesh()' ... /tmp/cchcKZfx.o:test1.cpp:function main: error: undefined reference to 'Ng_Exit()' collect2: ld

undefined reference to symbol even when nm indicates that this symbol is present in the shared library 2

蓝咒 提交于 2019-12-23 06:03:58
问题 I found same question here but the answer doesn't help me. I'm writing test app to use nglib library. But when I try to compile it I get undefined references: $ g++ test1.cpp -L. -lnglib test1.cpp: In function ‘int main()’: /tmp/cchcKZfx.o:test1.cpp:function main: error: undefined reference to 'Ng_Init()' /tmp/cchcKZfx.o:test1.cpp:function main: error: undefined reference to 'Ng_NewMesh()' ... /tmp/cchcKZfx.o:test1.cpp:function main: error: undefined reference to 'Ng_Exit()' collect2: ld

Libtorch/Pytorch Dilemma when combined static library into one STATIC library

六月ゝ 毕业季﹏ 提交于 2019-12-23 05:16:01
问题 I have around 26 static libraries such as liba.a, libb.a, libc.a, ..., libz.a . There are two catches here: 1) circular dependencies between for example liba.a and libb.a ; 2) some lib*.a has static global registration code which is unreferenced, but shall NOT be stripped away. Thanks to stackoverflow, I managed to solve above two problems with the ld option -Wl,--whole-archive -la -lb -lc -ld -le ...(omitted)... -lz -Wl,--no-whole-archive -lpthread -lm -ldl -lrt -fopenmp , and the executable

How to open other application from my application

杀马特。学长 韩版系。学妹 提交于 2019-12-23 05:04:48
问题 I am writing code to launch other applications from my react native application for android and ios . Using Linking form react native I am able to redirect to Play Store/App Store but How can I launch App if it's already installed? * I am getting the list of the app's from server Linking.openURL('https://play.google.com/store/apps/details?id=com.example.myapp&hl=en') Is there any way that I can launch the app if it's installed else redirect to App store/play store with respect to the platform

Error when making dynamic lib from .o

纵饮孤独 提交于 2019-12-23 04:50:29
问题 I'm trying to make dynamic lib from set of .o files, but when i do gcc -dynamiclib -current_version 1.0 mymod.o -o mylib.dylib or ld *.o -o mylib.dylib i get a lot of errors like: "_objc_msgSend", referenced from: -[NSObject(NSObject_SBJSON) JSONFragment] in NSObject+SBJSON.o "operator new(unsigned long)", referenced from: MStatistic::instance() in MStatistic.o StatisticProfileLoggingObserver::instance() in StatisticObserver.o ld: symbol(s) not found for architecture x86_64 Can you please

Linking FORTRAN and C++ objects files

為{幸葍}努か 提交于 2019-12-23 04:14:07
问题 I am going to call a C++ function from FORTRAN, for which I am using ISO_C_Binding module. After compaction of the FORTRAN main file and C++ function with commands gfortran -c mlp8.f90 g++ -c mean_cpp.cc Which will create the objects files but in the linking phase as suggested by some members I am going to use the commands g++ mlp8.o mean_cpp.o -o main –lgfortran I.e. using C++ compiler with linking to FORTRAN libraries but it gives error like /Cygnus/cygwin-b20/H-i586-cygwin32/i586-win32/bin