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tools headers: Update linux/ctype.h with the kernel sources

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To pick up the changes in:

  caabdd0f59 ("ctype.h: remove duplicate isdigit() helper")

Addressing this perf build warning:

  Warning: Kernel ABI header at 'tools/include/linux/ctype.h' differs from latest version at 'include/linux/ctype.h'
  diff -u tools/include/linux/ctype.h include/linux/ctype.h

And we need to continue using the combination of:

  inline __isdigit()
  #define isdigit() __isdigit

When the __has_builtin() thing isn't available, as it is a builtin in
older systems with it as a builtin but with compilers not hacinv
__has_builtin(), rendering the __has_builtin() check useless otherwise.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2020-12-17 14:41:21 -03:00
parent ffb9beb13e
commit 23cd9543a5
1 changed files with 12 additions and 5 deletions
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17
tools/include/linux/ctype.h
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@ -2,6 +2,8 @@
#ifndef _LINUX_CTYPE_H
#define _LINUX_CTYPE_H
#include <linux/compiler.h>
/*
* NOTE! This ctype does not handle EOF like the standard C
* library is required to.
@ -23,11 +25,6 @@ extern const unsigned char _ctype[];
#define isalnum(c) ((__ismask(c)&(_U|_L|_D)) != 0)
#define isalpha(c) ((__ismask(c)&(_U|_L)) != 0)
#define iscntrl(c) ((__ismask(c)&(_C)) != 0)
static inline int __isdigit(int c)
{
return '0' <= c && c <= '9';
}
#define isdigit(c) __isdigit(c)
#define isgraph(c) ((__ismask(c)&(_P|_U|_L|_D)) != 0)
#define islower(c) ((__ismask(c)&(_L)) != 0)
#define isprint(c) ((__ismask(c)&(_P|_U|_L|_D|_SP)) != 0)
@ -40,6 +37,16 @@ static inline int __isdigit(int c)
#define isascii(c) (((unsigned char)(c))<=0x7f)
#define toascii(c) (((unsigned char)(c))&0x7f)
#if __has_builtin(__builtin_isdigit)
#define isdigit(c) __builtin_isdigit(c)
#else
static inline int __isdigit(int c)
{
return '0' <= c && c <= '9';
}
#define isdigit(c) __isdigit(c)
#endif
static inline unsigned char __tolower(unsigned char c)
{
if (isupper(c))