Debian

我應該為遺留程式碼降級 gcc 嗎？

  • August 2, 2017

我繼承了一個看起來像這樣的遺留系統。

$ uname -a
Linux pos-sthlm-globe-as-209 2.4.19-dxx #10 Thu Dec 22 15:47:12 CET 2005 i686 GNU/Linux
niklros@pos-sthlm-globe-as-209:~$ gcc --version
2.95.4

它有我可以建構的原始碼（它是用於使用的 PCI 卡的 32 位驅動程序）：

# make clean
test -z "mtn.o" || rm -f mtn.o
rm -rf .libs _libs
rm -f *.o core *.core
rm -f *.lo
pos-sthlm-globe-as-209:~/mtn/dxxmtn# ls
BusMastHostApi.h   bmhostif_parsed.h  proc.c        uaa.c
Makefile       cc.c           queue.c       uaa.h
Makefile.am    ct812.c        ram.c     uaa_msg.c
Makefile.in    drawbridge.c       ringbuf.c     uniporte_parsed.c
PORT           dump.c         src       uniporte_parsed.h
TODO           log.c          telem.c       untar
UniPorte.h     main.c         telem_cmd.c   usr
aaa        memring.c          telem_cons.c  vpd.c
ac         mtn            telem_misc.c
bc.c           mtn2100.rc         tmp
bmhostif_parsed.c  mtn_poll.c         tty.c
pos-sthlm-globe-as-209:~/mtn/dxxmtn# make
if [ ! -f uniporte_parsed.c -a ! -f uniporte_parsed.h ]; then \
   rm -f uniporte_parsed.c uniporte_parsed.h; \
   ../utils/grabenum.pl /usr/local/dxx/include/UniPorte.h -header > uniporte_parsed.c; \
   for enum in uniporte_managed_object_indices uniport_disconnect_reason_enumeration uniporte_port_state_enumeration ; do \
       echo "Grabbing enumerator $enum from /usr/local/dxx/include/UniPorte.h into uniporte_parsed.c..."; \
       ../utils/grabenum.pl /usr/local/dxx/include/UniPorte.h $enum -array >> uniporte_parsed.c; \
       echo "extern char *$enum[];" >> uniporte_parsed.h; \
   ...
/usr/src/linux/include/linux/sched.h:770: warning: called from here
/bin/sh ../libtool --mode=link gcc  -O -D__KERNEL__ -DMODULE -DMODVERSIONS -Wall -Winline        -o mtn.o -r uniporte_parsed.o bmhostif_parsed.o uaa.o uaa_msg.o main.o bc.o cc.o mtn_poll.o tty.o ram.o vpd.o drawbridge.o ct812.o dump.o telem.o telem_cmd.o telem_misc.o queue.o ringbuf.o telem_cons.o log.o  
mkdir .libs
/usr/bin/ld -r -o mtn.o uniporte_parsed.o bmhostif_parsed.o uaa.o uaa_msg.o main.o bc.o cc.o mtn_poll.o tty.o ram.o vpd.o drawbridge.o ct812.o dump.o telem.o telem_cmd.o telem_misc.o queue.o ringbuf.o telem_cons.o log.o   
pos-sthlm-globe-as-209:~/mtn/dxxmtn# ls
BusMastHostApi.h   ct812.c   proc.c        tmp
Makefile       ct812.o   queue.c       tty.c
Makefile.am    drawbridge.c  queue.o       tty.o
Makefile.in    drawbridge.o  ram.c         uaa.c
PORT           dump.c    ram.o         uaa.h
TODO           dump.o    ringbuf.c     uaa.o
UniPorte.h     log.c     ringbuf.o     uaa_msg.c
aaa        log.o     src           uaa_msg.o
ac         main.c    telem.c       uniporte_parsed.c
bc.c           main.o    telem.o       uniporte_parsed.h
bc.o           memring.c     telem_cmd.c   uniporte_parsed.o
bmhostif_parsed.c  mtn       telem_cmd.o   untar
bmhostif_parsed.h  mtn.o     telem_cons.c  usr
bmhostif_parsed.o  mtn2100.rc    telem_cons.o  vpd.c
cc.c           mtn_poll.c    telem_misc.c  vpd.o
cc.o           mtn_poll.o    telem_misc.o
pos-sthlm-globe-as-209:~/mtn/dxxmtn#

現在我嘗試在本地機器上的 Virtual Box VM 中複製它，但似乎我失敗了，我認為這是因為 gcc 是版本 3 而不是版本 2。

# uname -a     
Linux debian 2.4.27-3-386 #1 Wed Dec 6 00:38:33 UTC 2006 i686 GNU/Linux
debian:/home/developer/mtn-copy/mtn-copy/mtn/dxxmtn# gcc --version
gcc (GCC) 3.3.5 (Debian 1:3.3.5-13)
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

debian:/home/developer/mtn-copy/mtn-copy/mtn/dxxmtn# make clean
test -z "mtn.o" || rm -f mtn.o
rm -rf .libs _libs
rm -f *.o core *.core
rm -f *.lo
debian:/home/developer/mtn-copy/mtn-copy/mtn/dxxmtn# ls
aaa        gcc-2.95.3.tar  proc.c    tty.c
ac         log.c       queue.c   uaa.c
bc.c           main.c      ram.c     uaa.h
bmhostif_parsed.c  Makefile    ringbuf.c     uaa_msg.c
bmhostif_parsed.h  Makefile.am     src       UniPorte.h
BusMastHostApi.h   Makefile.in     telem.c   uniporte_parsed.c
cc.c           memring.c       telem_cmd.c   uniporte_parsed.h
ct812.c        mtn         telem_cons.c  untar
drawbridge.c       mtn2100.rc      telem_misc.c  usr
dump.c         mtn_poll.c      tmp       usr-src-linux-include
gcc-2.95.3     PORT        TODO      vpd.c
debian:/home/developer/mtn-copy/mtn-copy/mtn/dxxmtn# make
if [ ! -f uniporte_parsed.c -a ! -f uniporte_parsed.h ]; then \
 rm -f uniporte_parsed.c uniporte_parsed.h; \
...
/usr/src/linux/include/linux/signal.h:205: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:149: warning: called from here
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/local/dxx/include -I../mtnadm -I/usr/src/linux/include -include /usr/src/linux/include/linux/modversions.h    -O -D__KERNEL__ -DMODULE -DMODVERSIONS -Wall -Winline         -c telem_misc.c
In file included from mtn/mtn.h:436,
        from mtn/telem_misc.h:28,
        from telem_misc.c:34:
/usr/src/linux/include/linux/malloc.h:4:2: warning: #warning linux/malloc.h is deprecated, use linux/slab.h instead.
In file included from mtn/mtn.h:443,
        from mtn/telem_misc.h:28,
        from telem_misc.c:34:
/usr/src/linux/include/asm/uaccess.h: In function `__constant_copy_from_user':
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/asm/uaccess.h:561: warning: called from here
/usr/src/linux/include/asm/siginfo.h: At top level:
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
/usr/src/linux/include/asm/siginfo.h:223: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
/usr/src/linux/include/asm/siginfo.h:226: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:149: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:161: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:193: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:205: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:149: warning: called from here
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/local/dxx/include -I../mtnadm -I/usr/src/linux/include -include /usr/src/linux/include/linux/modversions.h    -O -D__KERNEL__ -DMODULE -DMODVERSIONS -Wall -Winline         -c queue.c
In file included from mtn/mtn.h:436,
        from mtn/queue.h:54,
        from queue.c:70:
/usr/src/linux/include/linux/malloc.h:4:2: warning: #warning linux/malloc.h is deprecated, use linux/slab.h instead.
In file included from mtn/mtn.h:443,
        from mtn/queue.h:54,
        from queue.c:70:
/usr/src/linux/include/asm/uaccess.h: In function `__constant_copy_from_user':
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/asm/uaccess.h:561: warning: called from here
queue.c: In function `mtn_data_queue_add':
/usr/src/linux/include/asm/uaccess.h:557: warning: inlining failed in call to `__constant_copy_from_user'
queue.c:367: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
queue.c:379: warning: called from here
queue.c: In function `mtn_data_queue_get':
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
queue.c:443: warning: called from here
/usr/src/linux/include/asm/siginfo.h: At top level:
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
/usr/src/linux/include/asm/siginfo.h:223: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
/usr/src/linux/include/asm/siginfo.h:226: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:149: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:161: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:193: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:205: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:149: warning: called from here
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/local/dxx/include -I../mtnadm -I/usr/src/linux/include -include /usr/src/linux/include/linux/modversions.h    -O -D__KERNEL__ -DMODULE -DMODVERSIONS -Wall -Winline         -c ringbuf.c
ringbuf.c:43:19: errno.h: No such file or directory
In file included from ringbuf.c:45:
/usr/src/linux/include/asm/uaccess.h: In function `__constant_copy_from_user':
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/asm/uaccess.h:561: warning: called from here
In file included from mtn/mtn.h:436,
        from ringbuf.c:47:
/usr/src/linux/include/linux/malloc.h:4:2: warning: #warning linux/malloc.h is deprecated, use linux/slab.h instead.
ringbuf.c: In function `mtn_ringbuf_readline':
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:121: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:123: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:124: warning: called from here
ringbuf.c: In function `mtn_ringbuf_read':
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:151: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:153: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:154: warning: called from here
ringbuf.c: In function `mtn_ringbuf_read_to_user':
/usr/src/linux/include/asm/uaccess.h:548: warning: inlining failed in call to `__constant_copy_to_user'
ringbuf.c:181: warning: called from here
/usr/src/linux/include/asm/uaccess.h:548: warning: inlining failed in call to `__constant_copy_to_user'
ringbuf.c:185: warning: called from here
/usr/src/linux/include/asm/uaccess.h:548: warning: inlining failed in call to `__constant_copy_to_user'
ringbuf.c:185: warning: called from here
ringbuf.c: In function `mtn_ringbuf_write':
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:214: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:216: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
ringbuf.c:217: warning: called from here
ringbuf.c: In function `mtn_ringbuf_write_from_user':
/usr/src/linux/include/asm/uaccess.h:557: warning: inlining failed in call to `__constant_copy_from_user'
ringbuf.c:245: warning: called from here
/usr/src/linux/include/asm/uaccess.h:557: warning: inlining failed in call to `__constant_copy_from_user'
ringbuf.c:249: warning: called from here
/usr/src/linux/include/asm/uaccess.h:557: warning: inlining failed in call to `__constant_copy_from_user'
ringbuf.c:249: warning: called from here
/usr/src/linux/include/asm/siginfo.h: At top level:
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
/usr/src/linux/include/asm/siginfo.h:223: warning: called from here
/usr/src/linux/include/asm/string.h:222: warning: inlining failed in call to `__constant_memcpy'
/usr/src/linux/include/asm/siginfo.h:226: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:149: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:161: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:193: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:205: warning: called from here
/usr/src/linux/include/asm/string.h:457: warning: inlining failed in call to `__constant_c_and_count_memset'
/usr/src/linux/include/linux/signal.h:149: warning: called from here
make: *** [ringbuf.o] Error 1
debian:/home/developer/mtn-copy/mtn-copy/mtn/dxxmtn#

我的結論是否正確，即 VM 中的建構失敗是因為 gcc 版本的不同，還是有其他原因導致建構失敗？

您遇到的嚴重錯誤來自預處理器階段（對於某些#include <errno.h>行）：

ringbuf.c:43:19: errno.h: 沒有這樣的文件或目錄

（其他診斷只是警告；您應該了解它們中的每一個，但您可能 - 可能錯誤地 - 選擇忽略它們；我建議改程序式碼以使用呼叫的最新版本的GCC-Wall -Wextra獲得警告，目前GCC 7在 7月2017)

在我的 Debian 系統上，<errno.h>標頭/usr/include/errno.h由libc6-dev軟體包提供。您應該安裝等效的東西。

正如我評論的那樣，您的系統上可以有多個版本gcc（在我最近的 Debian 上，我可以安裝gcc-5和gcc-6&gcc-7包，我也可以在 下編譯和建構一些最新版本/usr/local/bin/）。

但是，<errno.h>它不是編譯器提供的標頭檔，因此安裝另一個GCC （例如降級）將無濟於事。

引用自：https://unix.stackexchange.com/questions/382857

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