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Update from Gnulib by running admin/merge-gnulib

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This commit is contained in:
Paul Eggert 2024-05-18 19:12:55 -07:00
parent 370a386633
commit c07160b8df
3 changed files with 49 additions and 21 deletions
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2
lib/sha512.c
View file

@ -35,7 +35,7 @@
#ifdef WORDS_BIGENDIAN
# define SWAP(n) (n)
#else
# define SWAP(n) bswap_64 (n)
# define SWAP(n) u64bswap (n)
#endif
#if ! HAVE_OPENSSL_SHA512

8
lib/stdlib.in.h
View file

@ -231,6 +231,14 @@ _GL_CXXALIAS_SYS (abort, void, (void));
_GL_CXXALIASWARN (abort);
# endif
#endif
#if @GNULIB_ABORT_DEBUG@ && @REPLACE_ABORT@
_GL_EXTERN_C void _gl_pre_abort (void);
#else
# if !GNULIB_defined_gl_pre_abort
# define _gl_pre_abort() /* nothing */
# define GNULIB_defined_gl_pre_abort 1
# endif
#endif
#if @GNULIB_FREE_POSIX@

60
lib/u64.h
View file

@ -22,8 +22,11 @@
#error "Please include config.h first."
#endif
#include <stddef.h>
#include <stdint.h>
#include <byteswap.h>
_GL_INLINE_HEADER_BEGIN
#ifndef _GL_U64_INLINE
# define _GL_U64_INLINE _GL_INLINE
@ -34,9 +37,6 @@ extern "C" {
#endif
/* Return X rotated left by N bits, where 0 < N < 64. */
#define u64rol(x, n) u64or (u64shl (x, n), u64shr (x, 64 - n))
#ifdef UINT64_MAX
/* Native implementations are trivial. See below for comments on what
@ -53,24 +53,30 @@ typedef uint64_t u64;
# define u64plus(x, y) ((x) + (y))
# define u64shl(x, n) ((x) << (n))
# define u64shr(x, n) ((x) >> (n))
# define u64bswap(x) bswap_64 (x)
#else
/* u64 is a 64-bit unsigned integer value.
# define _GL_U64_MASK32 0xfffffffful /* 2**32 - 1. */
/* u64 represents a 64-bit unsigned integer value equal to (HI << 32) + LO.
Implement it with unsigned int, which the GNU coding standards say
is wide enough to hold 32 bits, and which does not signal an error
when adding (theoretically possible with types like uint_fast32_t).
u64init (HI, LO), is like u64hilo (HI, LO), but for use in
initializer contexts. */
# ifdef WORDS_BIGENDIAN
typedef struct { uint32_t hi, lo; } u64;
typedef struct { unsigned int hi, lo; } u64;
# define u64init(hi, lo) { hi, lo }
# else
typedef struct { uint32_t lo, hi; } u64;
typedef struct { unsigned int lo, hi; } u64;
# define u64init(hi, lo) { lo, hi }
# endif
/* Given the high and low-order 32-bit quantities HI and LO, return a u64
value representing (HI << 32) + LO. */
_GL_U64_INLINE u64
u64hilo (uint32_t hi, uint32_t lo)
u64hilo (unsigned int hi, unsigned int lo)
{
u64 r;
r.hi = hi;
@ -78,9 +84,9 @@ u64hilo (uint32_t hi, uint32_t lo)
return r;
}
/* Return a u64 value representing LO. */
/* Return a u64 value representing the 32-bit quantity LO. */
_GL_U64_INLINE u64
u64lo (uint32_t lo)
u64lo (unsigned int lo)
{
u64 r;
r.hi = 0;
@ -88,18 +94,18 @@ u64lo (uint32_t lo)
return r;
}
/* Return a u64 value representing SIZE. */
/* Return a u64 value representing SIZE, where 0 <= SIZE < 2**64. */
_GL_U64_INLINE u64
u64size (size_t size)
{
u64 r;
r.hi = size >> 31 >> 1;
r.lo = size;
r.lo = size & _GL_U64_MASK32;
return r;
}
/* Return X < Y. */
_GL_U64_INLINE int
_GL_U64_INLINE bool
u64lt (u64 x, u64 y)
{
return x.hi < y.hi || (x.hi == y.hi && x.lo < y.lo);
@ -135,29 +141,29 @@ u64xor (u64 x, u64 y)
return r;
}
/* Return X + Y. */
/* Return X + Y, wrapping around on overflow. */
_GL_U64_INLINE u64
u64plus (u64 x, u64 y)
{
u64 r;
r.lo = x.lo + y.lo;
r.hi = x.hi + y.hi + (r.lo < x.lo);
r.lo = (x.lo + y.lo) & _GL_U64_MASK32;
r.hi = (x.hi + y.hi + (r.lo < x.lo)) & _GL_U64_MASK32;
return r;
}
/* Return X << N. */
/* Return X << N, where 0 <= N < 64. */
_GL_U64_INLINE u64
u64shl (u64 x, int n)
{
u64 r;
if (n < 32)
{
r.hi = (x.hi << n) | (x.lo >> (32 - n));
r.lo = x.lo << n;
r.hi = (x.hi << n & _GL_U64_MASK32) | x.lo >> (32 - n);
r.lo = x.lo << n & _GL_U64_MASK32;
}
else
{
r.hi = x.lo << (n - 32);
r.hi = x.lo << (n - 32) & _GL_U64_MASK32;
r.lo = 0;
}
return r;
@ -171,7 +177,7 @@ u64shr (u64 x, int n)
if (n < 32)
{
r.hi = x.hi >> n;
r.lo = (x.hi << (32 - n)) | (x.lo >> n);
r.lo = (x.hi << (32 - n) & _GL_U64_MASK32) | x.lo >> n;
}
else
{
@ -181,8 +187,22 @@ u64shr (u64 x, int n)
return r;
}
/* Return X with bytes in reverse order. */
_GL_U64_INLINE u64
u64bswap (u64 x)
{
return u64hilo (bswap_32 (x.lo), bswap_32 (x.hi));
}
#endif
/* Return X rotated left by N bits, where 0 < N < 64. */
_GL_U64_INLINE u64
u64rol (u64 x, int n)
{
return u64or (u64shl (x, n), u64shr (x, 64 - n));
}
#ifdef __cplusplus
}