LI71664: WHEN -BMAXDATA:0X80000000 IS USED, COMPILER DOES NOT PASS RIGHT -BPD VALUE TO THE LINKER.

Latest updates for XL C/C++ Advanced Edition V7 for Linux

APAR status

• Closed as program error.

Error description

• When -bmaxdata:0x80000000 is used, compiler does not pass right
  -bpD value to the linker. According to option32_bmaxdata row (in
  DEFLT stanza of /etc/vac/cfg), -bpD:0x30000000 option should be
  passed to linker instead of -bpD:20000000 (which is the default
  value).
  
  test-case
  ----------
  
  $ cat mytest.c
  int main() {}
  $
  
  $ xlc -v -q32 -bmaxdata:0x80000000 mytest.c
  exec: export(export,XL_CONFIG=/etc/vac.cfg:xlc,NULL)
  exec:
  /usr/vac/exe/xlcentry(/usr/vac/exe/xlcentry,-D_AIX,-D_AIX32,-D_A
  IX41,-D
  AIX43,-D_AIX50,-D_AIX51,-D_AIX52,-D_IBMR2,-D_POWER,-qansialias,-
  qnolm,-q
  32,-omytest.o,mytest.c,/tmp/xlcW0sgAbaa,/tmp/xlcW1sgAbab,/dev/nu
  ll,mytes t.lst,/dev/null,/tmp/xlcW2smAbac,NULL)
  exec: export(export,XL_BACKEND=/usr/vac/exe/xlCcode,NULL)
  exec: export(export,XL_LINKER=/bin/ld,NULL)
  exec: export(export,XL_DIS=/usr/vac/exe/dis,NULL)
  exec:
  /usr/vac/exe/xlCcode(/usr/vac/exe/xlCcode,-qansialias,-qnolm,/tm
  p/xlcW0s
  gAbaa,/tmp/xlcW1sgAbab,mytest.o,mytest.lst,/tmp/xlcW2smAbac,NULL
  )
  exec:
  /bin/ld(/bin/ld,-b32,/lib/crt0.o,-bpT:0x10000000,-bpD:0x20000000
  ,-bmaxda
  ta:0x80000000,mytest.o,-L/usr/lpp/xlopt,-lxlopt,-lc,NULL)
  unlink: mytest.o
  unlink: /tmp/xlcW0sgAbaa
  unlink: /tmp/xlcW1sgAbab
  unlink: /tmp/xlcW2smAbac
  $
  

Local fix

• N/A
  

Problem summary

• Same As submitter's text
  

Problem conclusion

• Use -bpD:0x30000000 with -bmaxdata:0x80000000 in 32 bit mode
  

Temporary fix

• Specify the option -bpD:0x30000000 explicitly
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IY74101

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  XL C/C++ RHEL4

• Fixed component ID

  5724K7720

Applicable component levels

• R701 PSN IY74101

     UP06/09/13