• Locked Locked
  • Replies 5 replies
  • Subscribers 118 subscribers
  • Views 4262 views
  • Users 0 members are here
Options
Related
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Building Linux applications/libs in GCC emulation mode

Marius Cetateanu
Parents
  • Note: This was originally posted on 2nd June 2011 at http://forums.arm.com

    [font=arial, verdana, tahoma, sans-serif][size=2]I have played around with this... it doesn't look like armcc translates any of the -Wxyz warning options from gcc (except -Wall).  But, it seems to handle -f* options where its has equivalentsI think that warning L6238E is harmless in almost all cases; it is given by armlink because libgcc and other GCC/GNU assembler-built libraries don't contain ARM build attributes for marking that 8-byte stack alignment is required/preserved. You could just suppress this globally by setting ARMCC50_LINKOPT="--diag_suppress=6238".  Warning L6439W is again harmless; it'll most likely be generated for out-of-line copies of inline functions in Comdat groups, where GCC hasn't strictly followed ELF rules about the groups and therefore armlink is rejecting that copy and instead using a copy from the same Comdat group that was generated in one of the armcc-compiled object files.Updating to the latest GNU toolchain is also worth a punt.

    [/size][/font]
Reply
  • Note: This was originally posted on 2nd June 2011 at http://forums.arm.com

    [font=arial, verdana, tahoma, sans-serif][size=2]I have played around with this... it doesn't look like armcc translates any of the -Wxyz warning options from gcc (except -Wall).  But, it seems to handle -f* options where its has equivalentsI think that warning L6238E is harmless in almost all cases; it is given by armlink because libgcc and other GCC/GNU assembler-built libraries don't contain ARM build attributes for marking that 8-byte stack alignment is required/preserved. You could just suppress this globally by setting ARMCC50_LINKOPT="--diag_suppress=6238".  Warning L6439W is again harmless; it'll most likely be generated for out-of-line copies of inline functions in Comdat groups, where GCC hasn't strictly followed ELF rules about the groups and therefore armlink is rejecting that copy and instead using a copy from the same Comdat group that was generated in one of the armcc-compiled object files.Updating to the latest GNU toolchain is also worth a punt.

    [/size][/font]
Children
No data