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Message-ID: <202210221139.5yITeJI4-lkp@intel.com>
Date: Sat, 22 Oct 2022 12:06:31 +0800
From: kernel test robot <lkp@...el.com>
To: Mark Rutland <mark.rutland@....com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [mark:arm64/ftrace/per-callsite-ops 5/12]
include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not
defined, evaluates to 0
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/ftrace/per-callsite-ops
head: d0ae0c8983e2bf602a151b421652005bc5477727
commit: ca7f736e799f9a547cf1642c719e9842460ab586 [5/12] WIP: Compiler attributes: disable __cold with function alignment
config: powerpc-randconfig-r011-20221019
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=ca7f736e799f9a547cf1642c719e9842460ab586
git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
git fetch --no-tags mark arm64/ftrace/per-callsite-ops
git checkout ca7f736e799f9a547cf1642c719e9842460ab586
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
1 error generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/lib/sstep.c:1351:31: error: variable 'rc' set but not used [-Werror,-Wunused-but-set-variable]
unsigned int opcode, ra, rb, rc, rd, spr, u;
^
arch/powerpc/lib/sstep.c:1355:21: error: variable 'suffix' set but not used [-Werror,-Wunused-but-set-variable]
unsigned int word, suffix;
^
3 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/math-emu/fcmpu.c:15:2: error: variable '_fex' set but not used [-Werror,-Wunused-but-set-variable]
FP_DECL_EX;
^
include/math-emu/soft-fp.h:94:24: note: expanded from macro 'FP_DECL_EX'
#define FP_DECL_EX int _fex = 0
^
arch/powerpc/math-emu/fcmpu.c:13:2: error: variable 'A_c' set but not used [-Werror,-Wunused-but-set-variable]
FP_DECL_D(A);
^
include/math-emu/double.h:73:23: note: expanded from macro 'FP_DECL_D'
#define FP_DECL_D(X) _FP_DECL(2,X)
^
include/math-emu/op-common.h:28:14: note: expanded from macro '_FP_DECL'
_FP_I_TYPE X##_c=0, X##_s=0, X##_e=0; \
^
<scratch space>:75:1: note: expanded from here
A_c
^
arch/powerpc/math-emu/fcmpu.c:14:2: error: variable 'B_c' set but not used [-Werror,-Wunused-but-set-variable]
FP_DECL_D(B);
^
include/math-emu/double.h:73:23: note: expanded from macro 'FP_DECL_D'
#define FP_DECL_D(X) _FP_DECL(2,X)
^
include/math-emu/op-common.h:28:14: note: expanded from macro '_FP_DECL'
_FP_I_TYPE X##_c=0, X##_s=0, X##_e=0; \
^
<scratch space>:81:1: note: expanded from here
B_c
^
4 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/math-emu/fctiw.c:14:2: error: variable '_fex' set but not used [-Werror,-Wunused-but-set-variable]
FP_DECL_EX;
^
include/math-emu/soft-fp.h:94:24: note: expanded from macro 'FP_DECL_EX'
#define FP_DECL_EX int _fex = 0
^
2 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/math-emu/fctiwz.c:14:2: error: variable '_fex' set but not used [-Werror,-Wunused-but-set-variable]
FP_DECL_EX;
^
include/math-emu/soft-fp.h:94:24: note: expanded from macro 'FP_DECL_EX'
#define FP_DECL_EX int _fex = 0
^
2 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/math-emu/fsel.c:14:2: error: variable '_fex' set but not used [-Werror,-Wunused-but-set-variable]
FP_DECL_EX;
^
include/math-emu/soft-fp.h:94:24: note: expanded from macro 'FP_DECL_EX'
#define FP_DECL_EX int _fex = 0
^
2 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/mm/nohash/tlb.c:314:13: error: no previous prototype for function 'early_init_mmu_47x' [-Werror,-Wmissing-prototypes]
void __init early_init_mmu_47x(void)
^
arch/powerpc/mm/nohash/tlb.c:314:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init early_init_mmu_47x(void)
^
static
2 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/platforms/4xx/uic.c:274:13: error: no previous prototype for function 'uic_init_tree' [-Werror,-Wmissing-prototypes]
void __init uic_init_tree(void)
^
arch/powerpc/platforms/4xx/uic.c:274:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init uic_init_tree(void)
^
static
arch/powerpc/platforms/4xx/uic.c:319:14: error: no previous prototype for function 'uic_get_irq' [-Werror,-Wmissing-prototypes]
unsigned int uic_get_irq(void)
^
arch/powerpc/platforms/4xx/uic.c:319:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
unsigned int uic_get_irq(void)
^
static
3 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/platforms/4xx/soc.c:193:6: error: no previous prototype for function 'ppc4xx_reset_system' [-Werror,-Wmissing-prototypes]
void ppc4xx_reset_system(char *cmd)
^
arch/powerpc/platforms/4xx/soc.c:193:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void ppc4xx_reset_system(char *cmd)
^
static
2 errors generated.
--
In file included from <built-in>:3:
In file included from include/linux/compiler_types.h:79:
>> include/linux/compiler_attributes.h:84:5: error: 'CONFIG_CC_IS_GCC' is not defined, evaluates to 0 [-Werror,-Wundef]
#if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
^
arch/powerpc/platforms/44x/idle.c:30:12: error: no previous prototype for function 'ppc44x_idle_init' [-Werror,-Wmissing-prototypes]
int __init ppc44x_idle_init(void)
^
arch/powerpc/platforms/44x/idle.c:30:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __init ppc44x_idle_init(void)
^
static
2 errors generated.
vim +/CONFIG_CC_IS_GCC +84 include/linux/compiler_attributes.h
77
78 /*
79 * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-cold-function-attribute
80 * gcc: https://gcc.gnu.org/onlinedocs/gcc/Label-Attributes.html#index-cold-label-attribute
81 *
82 * With GCC, the cold attribute overrides function alignment
83 */
> 84 #if CONFIG_CC_IS_GCC && (CONFIG_FUNCTION_ALIGNMENT == 0)
85 #define __cold __attribute__((__cold__))
86 #else
87 #define __cold
88 #endif
89
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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