리눅스 CentOS solidity 컴파일러 solc 설치하기 . 샘플 컴파일

 

이더리움 공부를 위해 solidity를 설치합니다.

구글링으로만 참고해서 설치하려니 한 번에 안되네요.

너무 쉽게 생각한거 같아요.^^;;

시행착오를 거듭하다가 겨우 컴파일까지 완료했습니다.

solidity 관련 책을 사야 되나 고민 중입니다.ㅋ

♣ solc가 yum 패키지에 포함되어 있는지 확인 [root@localhost ~]# yum list *solc* Loaded plugins: fastestmirror Determining fastest mirrors  * base: mirror.navercorp.com  * extras: mirror.navercorp.com  * updates: mirror.navercorp.com Error: No matching Packages to list ▶ No matching 없다고 나오네요. ♣ yum 을 최신버전으로 update 합니다. [root@localhost ~]# yum update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirror.navercorp.com  * extras: mirror.navercorp.com  * updates: mirror.navercorp.com base                                                                                                                         | 3.6 kB  00:00:00 extras                                                                                                                       | 2.9 kB  00:00:00 updates                                                                                                                      | 2.9 kB  00:00:00 updates/7/x86_64/primary_db                                                                                                  |  13 MB  00:00:01 Resolving Dependencies --> Running transaction check ---> Package NetworkManager.x86_64 1:1.18.8-1.el7 will be updated ---> Package NetworkManager.x86_64 1:1.18.8-2.el7_9 will be an update .. 생략 .. ---> Package zlib.x86_64 0:1.2.7-19.el7_9 will be an update --> Finished Dependency Resolution Dependencies Resolved ==============================================================================  Package                                 Arch                   Version                                         Repository               Size ============================================================================== Installing:  kernel                                   x86_64                 3.10.0-1160.49.1.el7                            updates                  50 M Updating:  NetworkManager                    x86_64                 1:1.18.8-2.el7_9                                updates                 1.9 M  NetworkManager-libnm            x86_64                 1:1.18.8-2.el7_9                                updates                 1.7 M  NetworkManager-team             x86_64                 1:1.18.8-2.el7_9                                updates                 165 k  NetworkManager-tui                x86_64                 1:1.18.8-2.el7_9                                updates                 329 k  NetworkManager-wifi               x86_64                 1:1.18.8-2.el7_9                                updates                 202 k .. 생략 ..  tuned                              noarch                 2.11.0-11.el7_9                                 updates                 269 k  tzdata                                noarch                 2021e-1.el7                                     updates                 501 k  util-linux                         x86_64                 2.23.2-65.el7_9.1                               updates                 2.0 M  vim-minimal                        x86_64                 2:7.4.629-8.el7_9                               updates                 443 k  virt-what                           x86_64                 1.18-4.el7_9.1                                  updates                  30 k  wpa_supplicant                     x86_64                 1:2.6-12.el7_9.2                                updates                 1.2 M  zlib                             x86_64                 1.2.7-19.el7_9                                  updates                  90 k Transaction Summary ============================================================================= Install    1 Package Upgrade  104 Packages Total download size: 237 M Is this ok [y/d/N]: y Downloading packages: Delta RPMs disabled because /usr/bin/applydeltarpm not installed. (1/105): NetworkManager-libnm-1.18.8-2.el7_9.x86_64.rpm                                         | 1.7 MB  00:00:00 (2/105): NetworkManager-1.18.8-2.el7_9.x86_64.rpm                                                 | 1.9 MB  00:00:00 ... 생략 ... (104/105): zlib-1.2.7-19.el7_9.x86_64.rpm                                                                  |  90 kB  00:00:00 (105/105): systemd-219-78.el7_9.3.x86_64.rpm                                                           | 5.1 MB  00:00:01 ------------------------------------------------------------------------------------------------------------------------------------ Total                                                                                                               9.0 MB/s | 237 MB  00:00:26 Running transaction check Running transaction test Transaction test succeeded Running transaction   Updating   : bash-4.2.46-35.el7_9.x86_64                                                                           1/209   Updating   : zlib-1.2.7-19.el7_9.x86_64                                                                             2/209   Updating   : nspr-4.32.0-1.el7_9.x86_64                                                                              3/209 .. 생략 ...   Verifying  : kpartx-0.4.9-133.el7.x86_64                                                                             207/209   Verifying  : libsmartcols-2.23.2-65.el7.x86_64                                                                     208/209   Verifying  : libmount-2.23.2-65.el7.x86_64                                                                            209/209 Installed:   kernel.x86_64 0:3.10.0-1160.49.1.el7 Updated:   NetworkManager.x86_64 1:1.18.8-2.el7_9                                    NetworkManager-libnm.x86_64 1:1.18.8-2.el7_9   NetworkManager-team.x86_64 1:1.18.8-2.el7_9                               NetworkManager-tui.x86_64 1:1.18.8-2.el7_9   NetworkManager-wifi.x86_64 1:1.18.8-2.el7_9                               bash.x86_64 0:4.2.46-35.el7_9 .. 생략 ..     zdata.noarch 0:2021e-1.el7                                               util-linux.x86_64 0:2.23.2-65.el7_9.1   vim-minimal.x86_64 2:7.4.629-8.el7_9                                      virt-what.x86_64 0:1.18-4.el7_9.1   wpa_supplicant.x86_64 1:2.6-12.el7_9.2                                    zlib.x86_64 0:1.2.7-19.el7_9 Complete! ♣ update 후에도 없다고 나오네요. ^^;; [root@localhost ~]# yum list *solc* Loaded plugins: fastestmirror Determining fastest mirrors  * base: mirror.navercorp.com  * extras: mirror.navercorp.com  * updates: mirror.navercorp.com Error: No matching Packages to list

 

● epel 확장 패키지 설치

Extra Packages for Enterprise Linux
( 엔터프라이즈 리눅스 추가 패키지 )

♣ epel 설치 [root@localhost ~]# yum install epel-release Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirror.navercorp.com  * extras: mirror.navercorp.com  * updates: mirror.navercorp.com Resolving Dependencies --> Running transaction check ---> Package epel-release.noarch 0:7-11 will be installed --> Finished Dependency Resolution Dependencies Resolved =============================================================================  Package                             Arch                          Version                          Repository                         Size ============================================================================= Installing:  epel-release                       noarch                            7-11                             extras                             15 k Transaction Summary ============================================================================= Install  1 Package Total download size: 15 k Installed size: 24 k Is this ok [y/d/N]: y Downloading packages: epel-release-7-11.noarch.rpm                                                                                  |  15 kB  00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : epel-release-7-11.noarch                                                                       1/1   Verifying  : epel-release-7-11.noarch                                                                       1/1 Installed:   epel-release.noarch 0:7-11 Complete! ♣ epel에도 solc이 없었습니다. 흑... [root@localhost ~]# yum install solc Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirror.navercorp.com  * epel: ftp.iij.ad.jp  * extras: mirror.navercorp.com  * updates: mirror.navercorp.com No package solc available. Error: Nothing to do

 

구글링 해서 찾아보니

CentOS에서 solc 설치는 snap으로 가능하다고 합니다.

snap은 yum과 같은 리눅스 패키지 관리 도구인데요.

snap은 CentOS나 Red Hat 7.6 이상에서 설치 사용 가능한 툴입니다.

♠ snap 설치하기 [root@localhost ~]# yum install snapd Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirror.navercorp.com  * epel: ftp.iij.ad.jp  * extras: mirror.navercorp.com  * updates: mirror.navercorp.com Resolving Dependencies --> Running transaction check ---> Package snapd.x86_64 0:2.53.2-2.el7 will be installed --> Processing Dependency: snap-confine(x86-64) = 2.53.2-2.el7 for package: snapd-2.53.2-2.el7.x86_64 --> Processing Dependency: snapd-selinux = 2.53.2-2.el7 for package: snapd-2.53.2-2.el7.x86_64 .. 생략 .. ---> Package python-IPy.noarch 0:0.75-6.el7 will be installed ---> Package setools-libs.x86_64 0:3.3.8-4.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved =============================================================================  Package                           Arch                       Version                                   Repository                Size ============================================================================= Installing:  snapd                              x86_64                     2.53.2-2.el7                              epel                      16 M Installing for dependencies:  audit-libs-python                x86_64                     2.8.5-4.el7                                base                      76 k  bash-completion                 noarch                     1:2.1-8.el7                               base                      87 k  checkpolicy                       x86_64                     2.5-8.el7                                  base                     295 k ..생략...  squashfuse                        x86_64                     0.1.102-1.el7                             epel                      18 k  squashfuse-libs                  x86_64                     0.1.102-1.el7                              epel                      24 k Transaction Summary ========================================================================== Install  1 Package (+16 Dependent packages) Total download size: 22 M Installed size: 63 M Is this ok [y/d/N]: y Downloading packages: (1/17): audit-libs-python-2.8.5-4.el7.x86_64.rpm                                                           |  76 kB  00:00:00 (2/17): bash-completion-2.1-8.el7.noarch.rpm                                                              |  87 kB  00:00:00 (3/17): fuse-libs-2.9.2-11.el7.x86_64.rpm                                                                     |  93 kB  00:00:00 ..생략.. (16/17): squashfuse-0.1.102-1.el7.x86_64.rpm                                                                 |  18 kB  00:00:00 (17/17): squashfuse-libs-0.1.102-1.el7.x86_64.rpm                                                           |  24 kB  00:00:00 ----------------------------------------------------------------------------------------------------------------------------------- Total                                                                                                        1.8 MB/s |  22 MB  00:00:12 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Importing GPG key 0x352C64E5:  Userid     : "Fedora EPEL (7) <epel@fedoraproject.org>"  Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5  Package    : epel-release-7-11.noarch (@extras)  From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 Is this ok [y/N]: y Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : setools-libs-3.3.8-4.el7.x86_64                                                                                  1/17   Installing : audit-libs-python-2.8.5-4.el7.x86_64                                                                           2/17   Installing : libcgroup-0.41-21.el7.x86_64                                                                                    3/17 ..생략....   Verifying  : audit-libs-python-2.8.5-4.el7.x86_64                                                                          16/17   Verifying  : setools-libs-3.3.8-4.el7.x86_64                                                                                 17/17 Installed:   snapd.x86_64 0:2.53.2-2.el7 Dependency Installed:   audit-libs-python.x86_64 0:2.8.5-4.el7      bash-completion.noarch 1:2.1-8.el7                    checkpolicy.x86_64 0:2.5-8.el7   fuse.x86_64 0:2.9.2-11.el7                  fuse-libs.x86_64 0:2.9.2-11.el7                       libcgroup.x86_64 0:0.41-21.el7   libsemanage-python.x86_64 0:2.5-14.el7      libzstd.x86_64 0:1.5.0-1.el7           policycoreutils-python.x86_64 0:2.5-34.el7   python-IPy.noarch 0:0.75-6.el7              setools-libs.x86_64 0:3.3.8-4.el7           snap-confine.x86_64 0:2.53.2-2.el7   snapd-selinux.noarch 0:2.53.2-2.el7  squashfs-tools.x86_64 0:4.3-0.21.gitaae0aff4.el7   squashfuse.x86_64 0:0.1.102-1.el7   squashfuse-libs.x86_64 0:0.1.102-1.el7 Complete! ♠ 클래식 snap 기능 활성화를 위해 /snap 링크 걸어둡니다. [root@localhost /]# ln -s /var/lib/snapd/snap /snap [root@localhost /]# ll total 20 lrwxrwxrwx.   1 root root    7 Nov 18 03:44 bin -> usr/bin dr-xr-xr-x.   5 root root 4096 Dec 10 00:05 boot drwxr-xr-x.  20 root root 3080 Dec  9 18:59 dev drwxr-xr-x.  25 root root  780 Dec 10 00:19 run lrwxrwxrwx.   1 root root    8 Nov 18 03:44 sbin -> usr/sbin lrwxrwxrwx.   1 root root   19 Dec 10 00:54 snap -> /var/lib/snapd/snap drwxr-xr-x.   2 root root    6 Apr 11  2018 srv ...생략... ♠ snap의 통신 소켓 활성화하기 [root@localhost ~]# systemctl enable --now snapd.socket Created symlink from /etc/systemd/system/sockets.target.wants/snapd.socket to /usr/lib/systemd/system/snapd.socket. ♠ snap으로 solc 설치하기 [root@localhost ~]# snap install solc Download snap "core" (11993) from channel "stable"                                                      43% 3.05MB/s 19.6s Warning: /var/lib/snapd/snap/bin was not found in your $PATH. If you've not restarted your session          since you installed snapd, try doing that. Please see https://forum.snapcraft.io/t/9469          for more details. solc v0.5.16 from Ethereum Build Automation (builds-c) installed ♠ solc 설치 위치 확인 [tmach@localhost snap]$ which solc /var/lib/snapd/snap/bin/solc ♠ solc 버전 확인 [tmach@localhost ~]$ solc --version solc, the solidity compiler commandline interface Version: 0.5.16+commit.9c3226ce.Linux.g++ 만약에 solc 명령어를 실행했을때 아래와 같은 에러가 나면 리눅스 서버를 재부팅 해주세요.^^;; [root@localhost bin]# solc --version solc: error while loading shared libraries: libz3.so: cannot open shared object file: No such file or directory

● solidity 샘플 테스트 

solidity는 자바와 C++과 비슷하면서도 문법이 다소 차이가 있어요.^^;;

solidity를 전혀 모르는 상태에서

간단한 샘플 하나 만드는것도 시간이 좀 걸린거 같아요.ㅋ

♠ 문자열을 주고 받는 아주 간단한 소스입니다. [tmach@localhost test]$ vi src_sol01.sol pragma solidity ^0.5.16;   // solidity 버전 선언 contract HelloWorld {       // 스마트 계약 시작         string public greet;    // stinrg 변수 선언          function getHello() public view returns (string memory) {  // 문자열 반환 함수 선언                 return greet;           // 함수 반환값 지정         }         function setHello(string memory _greet) public {    // 문자열 입력 함수 선언                 greet = _greet;     //  입력 받은 문자열을 내부 변수에 대입         } } ♠ solc 컴파일 [tmach@localhost test]$ solc src_sol01.sol Compiler run successful, no output requested. ♠ solc 컴파일 . --bin bin옵션은 컴파일 결과를 바이트코드로 보여줍니다. [tmach@localhost test]$ solc src_sol01.sol --bin ======= src_sol01.sol:HelloWorld ======= Binary: 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 ♠ solc 컴파일 . --asm asm옵션은 어셈블리 코드로 컴파일 결과를 보여줍니다. [tmach@localhost test]$ solc src_sol01.sol --asm ======= src_sol01.sol:HelloWorld ======= EVM assembly:     /* "src_sol01.sol":26:220  contract HelloWorld {... */   mstore(0x40, 0x80)   callvalue     /* "--CODEGEN--":8:17   */   dup1     /* "--CODEGEN--":5:7   */   iszero   tag_1   jumpi     /* "--CODEGEN--":30:31   */   0x00 ..생략.. sub_0: assembly {         /* "src_sol01.sol":26:220  contract HelloWorld {... */       mstore(0x40, 0x80)       callvalue         /* "--CODEGEN--":8:17   */       dup1 ..생력..       jump      // out     auxdata: 0xa265627a7a72315820893bd4b9772bd5660dfc670744c9b2468d3956a6ec862d75ab01a57b70ab675b64736f6c63430005100032 } ♠ solc 컴파일 . --ast ast옵션은 추상 구문 트리형태로 컴파일 결과를 보여줍니다. [tmach@localhost test]$ solc src_sol01.sol --ast Syntax trees: ======= src_sol01.sol ======= PragmaDirective    Gas costs: 0    Source: "pragma solidity ^0.5.16;" ContractDefinition "HelloWorld"    Source: "contract HelloWorld {\n\tstring public greet;\n\tfunction getHello() public view returns (string memory) {\n\t\treturn greet;\n\t}\n\tfunction setHello(string memory _greet) public {\n\t\tgreet = _greet;\n\t}\n}"   VariableDeclaration "greet"      Type: string storage ref      Gas costs: [???]      Source: "string public greet"     ElementaryTypeName string ..생력..              Type: string storage ref              Source: "greet"           Identifier _greet              Type: string memory              Source: "_greet" ♠ solc 컴파일 . -o o 옵션은 디렉터리를 지정해서 해당 디렉터리안에 결과 파일을 만듭니다. [tmach@localhost test]$ solc src_sol01.sol --ast -o Fone Compiler run successful. Artifact(s) can be found in directory Fone. [tmach@localhost test]$ cd Fone [tmach@localhost Fone]$ ll total 1 -rw-rw-r--. 1 tmach tmach 1833 Dec 10 09:25 src_sol01.sol.ast [tmach@localhost test]$ solc src_sol01.sol --asm -o Fone Compiler run successful. Artifact(s) can be found in directory Fone. [tmach@localhost test]$ cd Fone [tmach@localhost Fone]$ ll total 1 -rw-rw-r--. 1 tmach tmach 15180 Dec 10 09:27 HelloWorld.evm

 

 

감사합니다.