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gcc 64비트로 빌드된 Apache 바이너리에 32비트와 64비트가 혼합되어 있는 이유는 무엇입니까?

tag-icon • tag-icon compiling solaris gcc
gcc 64비트로 빌드된 Apache 바이너리에 32비트와 64비트가 혼합되어 있는 이유는 무엇입니까?

Solaris 10에서는 64비트 gcc 4.9.0을 구축했습니다. 적어도 나는 그랬다고 생각한다. Apache 및 기타 필요한 도구를 기반으로 스택을 구축 중입니다.

Apache를 빌드하면 file64비트 httpd가 표시됩니다.

file apache-test/bin/httpd 
apache-test/bin/httpd:        ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available

따라서 이는 내 GCC가 64비트임을 나타냅니다. 그러나 바이너리를 빌드한 디렉터리에서 for f in *; do file $f; done얻은 전체 디렉터리에 대해 파일을 실행합니다.

for f in *; do file $f; done 
a.out:          empty file 
addr2line:      ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
ar:             ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
as:             ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
c_rehash:       executable /usr/bin/perl script 
c++:            ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
c++filt:        ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
compile_et:     executable shell script 
cpp:            ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
elfedit:        ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3], dynamically linked, not stripped
g++:            ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
gcc:            ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
gcc-ar:         ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3], dynamically linked, not stripped
gcc-nm:         ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3], dynamically linked, not stripped
gcc-ranlib:     ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3], dynamically linked, not stripped
gcov:           ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS POPC], dynamically linked, not stripped
gprof:          ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
gss-client:     ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
k5srvutil:      executable shell script 
kadmin:         ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
kdestroy:       ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
kinit:          ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
klist:          ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
kpasswd:        ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
krb5-config:    executable shell script 
kswitch:        ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
ktutil:         ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
kvno:           ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
ld:             ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
ld.bfd:         ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
nm:             ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
objcopy:        ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
objdump:        ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
openssl:        ELF 64-bit MSB executable SPARCV9 Version 1, UltraSPARC1 Extensions Required, dynamically linked, not stripped, no debugging information available
pcre-config:    executable shell script 
pcregrep:       ELF 64-bit MSB executable SPARCV9 Version 1, UltraSPARC3 Extensions Required, dynamically linked, not stripped
pcretest:       ELF 64-bit MSB executable SPARCV9 Version 1, UltraSPARC3 Extensions Required, dynamically linked, not stripped
ranlib:         ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
readelf:        ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
sclient:        ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
sim_client:     ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available
size:           ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
sparc-sun-solaris2.10-c++:      ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
sparc-sun-solaris2.10-g++:      ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
sparc-sun-solaris2.10-gcc:      ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
sparc-sun-solaris2.10-gcc-4.9.0:        ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 FMAF VIS], dynamically linked, not stripped
sparc-sun-solaris2.10-gcc-ar:   ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3], dynamically linked, not stripped
sparc-sun-solaris2.10-gcc-nm:   ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3], dynamically linked, not stripped
sparc-sun-solaris2.10-gcc-ranlib:       ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3], dynamically linked, not stripped
strings:        ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
strip:          ELF 32-bit MSB executable SPARC32PLUS Version 1, V8+ Required, UltraSPARC3 Extensions Required [CBCOND VIS3 VIS], dynamically linked, not stripped
uuclient:       ELF 64-bit MSB executable SPARCV9 Version 1, dynamically linked, not stripped, no debugging information available

왜 그렇게 많은 32비트 버전이 표시됩니까? gcc를 사용하여 Apache를 빌드하는 경우 gcc 파일에 32비트라고 표시되어 있는데 어떻게 64비트가 될 수 있습니까?

답변1

Solaris의 GCC에는 Linux의 GCC와 다른 기본값이 있습니다.

64개의 바이너리를 컴파일하려면 다음을 추가해야 합니다.

-m64

컴파일 및 링크 라인에.

이와 관련하여 GCC는 Solaris Studio C 컴파일러와 호환됩니다.

SPARC에서는 프로그램을 32비트로 컴파일해도 64비트가 추가 레지스터를 제공하는 x86과 동일한 단점이 없습니다.

답변2

컴파일러를 일부 입력에서 출력을 생성하는 함수로 생각해야 합니다.

output_program = compile_function(input_source, args)

compile_function32비트 또는 64비트 바이너리가 있으면 영향을 미칩니다.어떻게작업은 수행되지만 출력이 없습니다.

64비트의 역할을 단순히 주소 지정 가능한 메모리의 양을 늘리는 것으로 크게 단순화한다면 기술적으로 32비트 컴파일러는 출력을 생성하는 데 4GB 이상의 주소 지정 가능한 메모리가 필요한 경우에만 문제가 발생해야 합니다. 이 시나리오는 기본적으로 오늘날에는 생각할 수 없는 일입니다(비록 일부 사람들이 이것에 대한 인위적인 예를 생각해 낼 수 있다고 확신하지만).

관련 정보