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Remove (unused) posix_memalign fallback 

Was wrong.  The returned pointer couldn't be passed to free().  Ouch!
This commit is contained in:
Behdad Esfahbod 2019-06-18 12:41:56 -07:00
parent eb28d6e48b
commit 6172ec5d87
2 changed files with 1 additions and 35 deletions
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2
configure.ac
View File

@ -77,7 +77,7 @@ GTK_DOC_CHECK([1.15],[--flavour no-tmpl])
])
# Functions and headers
AC_CHECK_FUNCS(atexit mprotect sysconf getpagesize mmap isatty newlocale strtod_l posix_memalign)
AC_CHECK_FUNCS(atexit mprotect sysconf getpagesize mmap isatty newlocale strtod_l)
AC_CHECK_HEADERS(unistd.h sys/mman.h xlocale.h stdbool.h)
# Compiler flags

34
src/hb.hh
View File

@ -211,14 +211,6 @@ extern "C" void hb_free_impl(void *ptr);
#define calloc hb_calloc_impl
#define realloc hb_realloc_impl
#define free hb_free_impl
#ifdef hb_memalign_impl
extern "C" int hb_memalign_impl(void **memptr, size_t alignment, size_t size);
#define posix_memalign hb_memalign_impl
#else
#undef HAVE_POSIX_MEMALIGN
#endif
#endif
@ -515,32 +507,6 @@ typedef uint64_t hb_vector_size_impl_t;
#define VAR 1
/* fallback for posix_memalign() */
static inline int
_hb_memalign(void **memptr, size_t alignment, size_t size)
{
if (unlikely (0 != (alignment & (alignment - 1)) ||
!alignment ||
0 != (alignment & (sizeof (void *) - 1))))
return EINVAL;
char *p = (char *) malloc (size + alignment - 1);
if (unlikely (!p))
return ENOMEM;
size_t off = (size_t) p & (alignment - 1);
if (off)
p += alignment - off;
*memptr = (void *) p;
return 0;
}
#if !defined(posix_memalign) && !defined(HAVE_POSIX_MEMALIGN)
#define posix_memalign _hb_memalign
#endif
/*
* Big-endian integers. Here because fundamental.
*/