OpenWrt/LEDE Project

  • Status New
  • Percent Complete
    0%
  • Task Type Bug Report
  • Category Kernel
  • Assigned To No-one
  • Operating System All
  • Severity Low
  • Priority Low
  • Reported Version lede-17.01
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: OpenWrt/LEDE Project
Opened by Baptiste Jonglez - 27.08.2017
Last edited by Baptiste Jonglez - 27.08.2017

FS#981 - arc770: build failure: xtables-addons fails to build LUA extension because of kernel #define

While test-building all architectures on latest lede-17.01 (https://git.lede-project.org/dc8392f6a) with CONFIG_ALL_KMODS=y, I bumped on this build failure for arc770:

make[7]: Entering directory '/home/bjonglez/lede-17.01/build_dir/target-arc_arc700_uClibc-1.0.14/linux-arc770_generic/linux-4.4.83'
  CC [M]  /home/bjonglez/lede-17.01/build_dir/target-arc_arc700_uClibc-1.0.14/linux-arc770_generic/xtables-addons-2.11/extensions/LUA/lua/llex.o
In file included from <command-line>:0:0:
/home/bjonglez/lede-17.01/build_dir/target-arc_arc700_uClibc-1.0.14/linux-arc770_generic/xtables-addons-2.11/extensions/LUA/lua/llex.c: In function 'inclinenumber':
././arch/arc/include/asm/current.h:20:17: error: expected identifier before '(' token
 #define current (curr_arc)
                 ^
/home/bjonglez/lede-17.01/build_dir/target-arc_arc700_uClibc-1.0.14/linux-arc770_generic/xtables-addons-2.11/extensions/LUA/lua/llex.c:127:17: note: in expansion of macro 'current'
   int old = ls->current;
                 ^
././arch/arc/include/asm/current.h:20:17: error: expected identifier before '(' token
 #define current (curr_arc)
                 ^
/home/bjonglez/lede-17.01/build_dir/target-arc_arc700_uClibc-1.0.14/linux-arc770_generic/xtables-addons-2.11/extensions/LUA/lua/llex.c:27:23: note: in expansion of macro 'current'
 #define next(ls) (ls->current = zgetc(ls->z))
                       ^
/home/bjonglez/lede-17.01/build_dir/target-arc_arc700_uClibc-1.0.14/linux-arc770_generic/xtables-addons-2.11/extensions/LUA/lua/llex.c:129:3: note: in expansion of macro 'next'
   next(ls);  /* skip `\n' or `\r' */
   ^

The failure is in the LUA extension to xtables-addons, and seems to be caused by a name collision with the following #define in arch/arc/include/asm/current.h in the kernel:

#define current (curr_arc)

I’m not sure this ever worked...

Baptiste Jonglez commented on 27.08.2017 15:59

This also affects the archs38 target, which uses the same kernel.

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