Question

在为AMDPowerProfiler-7.02构建内核模块时，出现此错误

make -C /lib/modules/4.18.0-24-generic/build M=/usr/src/AMDPowerProfiler-7.02  EXTRA_CFLAGS="-I/usr/src/AMDPowerProfiler-7.02/inc -DKERNEL_MODULE -DLINUX -D_LINUX " modules
make[1]: Entering directory '/usr/src/linux-headers-4.18.0-24-generic'
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrAccessPmcData.o
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrCollectSmuCounters.o
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrCommonConfig.o
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrCommonHelper.o
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrCounterAccessInterface.o
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrDriverUtils.o
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrHwAccessInterface.o
  CC [M]  /usr/src/AMDPowerProfiler-7.02/src/PwrProfCoreUtils.o
In file included from /usr/src/AMDPowerProfiler-7.02/inc/PwrProfCoreUtils.h:12:0,
             from /usr/src/AMDPowerProfiler-7.02/src/PwrProfCoreUtils.c:9:
./arch/x86/include/asm/ftrace.h: In function ‘arch_syscall_match_sym_name’:
./arch/x86/include/asm/ftrace.h:58:10: error: implicit declaration of function ‘strcmp’ [-Werror=implicit-function-declaration]
  return !strcmp(sym + 3, name + 3) ||
         ^~~~~~
./arch/x86/include/asm/ftrace.h:59:5: error: implicit declaration of function ‘strncmp’ [-Werror=implicit-function-declaration]
   (!strncmp(sym, "__x64_", 6) && !strcmp(sym + 9, name + 3)) ||
     ^~~~~~~
cc1: some warnings being treated as errors

当我搜索ftrace.h时，我发现这是内核源文件。因此，我打开了与内核编号匹配的/usr/src/linux-headers-4.18.0-24/arch/x86/include/asm/ftrace.h，并添加了

#include <string.h>

在其顶部。接下来，我收到此错误：

./arch/x86/include/asm/ftrace.h:2:10: fatal error: string.h: No such file or directory
 #include <string.h>

我知道这与g ++有关。我该如何解决？

内核源代码中函数“ strcmp”的隐式声明

0 个答案: