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libc/impure: Fix the inconsistence from the different toolchain 

some toolchain provider remove const qualifier from global_impure_ptr
(e.g. Espressif) but other provider keep it(e.g. ARM or Cadence), so
let's define const to empty macro to pass the compile and more safety.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2022-07-21 12:22:25 +08:00 committed by Petro Karashchenko
parent fe723f0715
commit 4e92e32d7b
1 changed files with 4 additions and 8 deletions
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12
libs/libc/misc/lib_impure.c
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@ -25,6 +25,7 @@
#if defined(__has_include)
# if __has_include(<reent.h>)
#define const
#include <reent.h>
/****************************************************************************
@ -44,9 +45,9 @@
****************************************************************************/
#ifdef _REENT_SMALL
extern const struct __sFILE_fake __sf_fake_stdin _ATTRIBUTE((weak));
extern const struct __sFILE_fake __sf_fake_stdout _ATTRIBUTE((weak));
extern const struct __sFILE_fake __sf_fake_stderr _ATTRIBUTE((weak));
extern struct __sFILE_fake __sf_fake_stdin _ATTRIBUTE((weak));
extern struct __sFILE_fake __sf_fake_stdout _ATTRIBUTE((weak));
extern struct __sFILE_fake __sf_fake_stderr _ATTRIBUTE((weak));
#endif
static struct _reent __ATTRIBUTE_IMPURE_DATA__
@ -59,13 +60,8 @@ extern struct _reent reent_data __attribute__((alias("impure_data")));
struct _reent *__ATTRIBUTE_IMPURE_PTR__
_impure_ptr = &impure_data;
#ifdef CONFIG_ARCH_XTENSA
struct _reent *__ATTRIBUTE_IMPURE_PTR__
_global_impure_ptr = &impure_data;
#else
struct _reent *const __ATTRIBUTE_IMPURE_PTR__
_global_impure_ptr = &impure_data;
#endif
# endif /* __has_include(<reent.h>) */
#endif /* defined(__has_include) */