[alobakin:kallsyms 2/2] scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
From: kernel test robot
Date: Wed Aug 17 2022 - 09:11:48 EST
tree: https://github.com/alobakin/linux kallsyms
head: ce39255907a23839bfa3cf1e68a5ed8cfeabc407
commit: ce39255907a23839bfa3cf1e68a5ed8cfeabc407 [2/2] kallsyms: add option to include relative filepaths into kallsyms
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20220817/202208172113.PQCj5XHg-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/alobakin/linux/commit/ce39255907a23839bfa3cf1e68a5ed8cfeabc407
git remote add alobakin https://github.com/alobakin/linux
git fetch --no-tags alobakin kallsyms
git checkout ce39255907a23839bfa3cf1e68a5ed8cfeabc407
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k prepare
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All error/warnings (new ones prefixed by >>):
scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
In file included from scripts/mod/sympath.c:15:
scripts/mod/sympath.c: In function 'move_code':
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:100:31: note: in expansion of macro 't'
100 | eh->e_shoff = t(h(eh->e_shoff) + off);
| ^
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:103:31: note: in expansion of macro 't'
103 | eh->e_phoff = t(h(eh->e_phoff) + off);
| ^
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:115:43: note: in expansion of macro 't'
115 | iter->sh_offset = t(h(iter->sh_offset) + off);
| ^
scripts/mod/sympath.c: In function 'fix_strtab':
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:132:29: note: in expansion of macro 't'
132 | st->strh->sh_size = t(h(st->strh->sh_size) + len);
| ^
scripts/mod/sympath.c: In function 'add_file_sym':
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:169:29: note: in expansion of macro 't'
169 | st->symh->sh_size = t(h(st->symh->sh_size) + h(st->symh->sh_entsize));
| ^
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:170:29: note: in expansion of macro 't'
170 | st->symh->sh_info = t(h(st->symh->sh_info) + 1);
| ^
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:172:24: note: in expansion of macro 't'
172 | pos->st_info = t((STB_LOCAL << 4) | STT_FILE);
| ^
>> scripts/mod/modpost.h:87:18: error: lvalue required as unary '&' operand
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^
scripts/mod/sympath.c:19:25: note: in expansion of macro 'TO_NATIVE'
19 | #define t(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:173:25: note: in expansion of macro 't'
173 | pos->st_shndx = t(SHN_ABS);
| ^
>> scripts/mod/modpost.h:87:24: warning: passing argument 2 of '__endian' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^~~~~~
scripts/mod/sympath.c:18:25: note: in expansion of macro 'TO_NATIVE'
18 | #define h(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:177:38: note: in expansion of macro 'h'
177 | *end = (void *)st->sh + h(eh->e_shnum) * h(eh->e_shentsize);
| ^
scripts/mod/modpost.h:77:52: note: expected 'void *' but argument is of type 'const Elf32_Half *' {aka 'const short unsigned int *'}
77 | static inline void __endian(const void *src, void *dest, unsigned int size)
| ~~~~~~^~~~
>> scripts/mod/modpost.h:87:24: warning: passing argument 2 of '__endian' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^~~~~~
scripts/mod/sympath.c:18:25: note: in expansion of macro 'TO_NATIVE'
18 | #define h(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:177:55: note: in expansion of macro 'h'
177 | *end = (void *)st->sh + h(eh->e_shnum) * h(eh->e_shentsize);
| ^
scripts/mod/modpost.h:77:52: note: expected 'void *' but argument is of type 'const Elf32_Half *' {aka 'const short unsigned int *'}
77 | static inline void __endian(const void *src, void *dest, unsigned int size)
| ~~~~~~^~~~
>> scripts/mod/modpost.h:87:24: warning: passing argument 2 of '__endian' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
87 | __endian(&(x), &(__x), sizeof(__x)); \
| ^~~~~~
scripts/mod/sympath.c:18:25: note: in expansion of macro 'TO_NATIVE'
18 | #define h(x) TO_NATIVE(x)
| ^~~~~~~~~
scripts/mod/sympath.c:178:48: note: in expansion of macro 'h'
178 | iter < end; iter = (void *)iter + h(eh->e_shentsize)) {
| ^
scripts/mod/modpost.h:77:52: note: expected 'void *' but argument is of type 'const Elf32_Half *' {aka 'const short unsigned int *'}
77 | static inline void __endian(const void *src, void *dest, unsigned int size)
| ~~~~~~^~~~
>> scripts/mod/sympath.c:185:45: warning: right shift count >= width of type [-Wshift-count-overflow]
185 | if (h(rela->r_info) >> 32 >=
| ^~
make[2]: *** [scripts/Makefile.host:95: scripts/mod/sympath] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1206: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:222: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +87 scripts/mod/modpost.h
^1da177e4c3f41 Linus Torvalds 2005-04-16 83
^1da177e4c3f41 Linus Torvalds 2005-04-16 84 #define TO_NATIVE(x) \
^1da177e4c3f41 Linus Torvalds 2005-04-16 85 ({ \
^1da177e4c3f41 Linus Torvalds 2005-04-16 86 typeof(x) __x; \
^1da177e4c3f41 Linus Torvalds 2005-04-16 @87 __endian(&(x), &(__x), sizeof(__x)); \
^1da177e4c3f41 Linus Torvalds 2005-04-16 88 __x; \
^1da177e4c3f41 Linus Torvalds 2005-04-16 89 })
^1da177e4c3f41 Linus Torvalds 2005-04-16 90
:::::: The code at line 87 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
--
0-DAY CI Kernel Test Service
https://01.org/lkp