Eric Lee / linux-smarc-t335x-v3.2

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Commit c25bd29805f4d854c3a0b4176813f3c1bff569d3

Authored by H. Peter Anvin
1 parent 4cf63c8ac4
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

types: add C99-style constructors to <asm-generic/int-*.h> 

Add C99-style constructor macros for fixed types to
<asm-generic/int-*.h>.  Since Linux uses names like "u64" instead of
"uint64_t", the constructor macros are called U64_C() instead of
UINT64_C() and so forth.

These macros allow specific sizes to be specified as
U64_C(0x123456789abcdef), without gcc issuing warnings as it will if
one writes (u64)0x123456789abcdef.

When used from assembly, these macros pass their argument unchanged.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Showing 2 changed files with 40 additions and 0 deletions Side-by-side Diff

include/asm-generic/int-l64.h
Diff comments   View file @ c25bd29
... ... @@ -44,6 +44,26 @@
44 44 typedef signed long s64;
45 45 typedef unsigned long u64;
46 46  
  47 +#define S8_C(x) x
  48 +#define U8_C(x) x ## U
  49 +#define S16_C(x) x
  50 +#define U16_C(x) x ## U
  51 +#define S32_C(x) x
  52 +#define U32_C(x) x ## U
  53 +#define S64_C(x) x ## L
  54 +#define U64_C(x) x ## UL
  55 +
  56 +#else /* __ASSEMBLY__ */
  57 +
  58 +#define S8_C(x) x
  59 +#define U8_C(x) x
  60 +#define S16_C(x) x
  61 +#define U16_C(x) x
  62 +#define S32_C(x) x
  63 +#define U32_C(x) x
  64 +#define S64_C(x) x
  65 +#define U64_C(x) x
  66 +
47 67 #endif /* __ASSEMBLY__ */
48 68  
49 69 #endif /* __KERNEL__ */
include/asm-generic/int-ll64.h
Diff comments   View file @ c25bd29
... ... @@ -49,6 +49,26 @@
49 49 typedef signed long long s64;
50 50 typedef unsigned long long u64;
51 51  
  52 +#define S8_C(x) x
  53 +#define U8_C(x) x ## U
  54 +#define S16_C(x) x
  55 +#define U16_C(x) x ## U
  56 +#define S32_C(x) x
  57 +#define U32_C(x) x ## U
  58 +#define S64_C(x) x ## LL
  59 +#define U64_C(x) x ## ULL
  60 +
  61 +#else /* __ASSEMBLY__ */
  62 +
  63 +#define S8_C(x) x
  64 +#define U8_C(x) x
  65 +#define S16_C(x) x
  66 +#define U16_C(x) x
  67 +#define S32_C(x) x
  68 +#define U32_C(x) x
  69 +#define S64_C(x) x
  70 +#define U64_C(x) x
  71 +
52 72 #endif /* __ASSEMBLY__ */
53 73  
54 74 #endif /* __KERNEL__ */