facebook / facebook/folly

centos7 undefined reference to "folly::detail::Sleeper::kMinYieldingSleep"

Open
#1,678 3 comments 0 reactions 0 assignees View on GitHub
Dominant language
C++
Stars
30.5k
Forks
5.9k
PR merge metrics
No merged PRs in 30d

Description

Env:
CentOS Linux release 7.9 (Final)
tag:
v2021.11.15.00
build:
./build.sh

example test:

#include
#include
#include
class Student {
public:
Student(std::string name, int id, std::string email)
: m_name(name), m_id(id), m_email(email)
{}
void printSelf() const {
std::cout << "name: " << m_name << " "
<< "id: " << m_id << " "
<< "email: " << m_email << std::endl;
}
private:
std::string m_name;
int m_id;
std::string m_email;
};
int main() {
folly::ConcurrentHashMap students;
students.insert("Tom", Student("Tom", 1, "tom@gmail.com"));
students.insert("Lilly", Student("Lilly", 2, "lilly@gmail.com"));
}

compile result:

/tmp/ccGXQnMc.o:‘folly::hazptr_detail::shared_head_only_list, std::atomic>::pop_all_lock()’:
test.c:(.text._ZN5folly13hazptr_detail21shared_head_only_listINS_10hazptr_objISt6atomicEES3_E12pop_all_lockEv[_ZN5folly13hazptr_detail21shared_head_only_listINS_10hazptr_objISt6atomicEES3_E12pop_all_lockEv]+0x149):undefined reference to 'folly::detail::Sleeper::kMinYieldingSleep'
collect2: error: ld returned 1 exit status

Contributor guide

Open the contributing guide

Research direction

Start with ./build.sh and the provided test.c reproducer, which includes folly/concurrency/ConcurrentHashMap.h and fails during linking on CentOS 7.9 with tag v2021.11.15.00. Reproduce the undefined reference and trace the build or link inputs; done means the example links successfully in that environment.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
build-system
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.