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| author | Matt Joyce <matthew.joyce@embedded-brains.de> | 2022-05-23 11:29:57 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-07-13 06:55:46 +0200 |
| commit | 1a0908203606527b6ac0ed438669b5bcd247a5f9 (patch) | |
| tree | 4a9016ec36e92315c58842e52525e15f43895b43 /newlib/libc | |
| parent | db2123caf8501a6d2fe0a75a4d196492b68d99c6 (diff) | |
| download | newlib-1a0908203606527b6ac0ed438669b5bcd247a5f9.zip newlib-1a0908203606527b6ac0ed438669b5bcd247a5f9.tar.gz newlib-1a0908203606527b6ac0ed438669b5bcd247a5f9.tar.bz2 | |
Add _REENT_IS_NULL()
In a follow up patch, struct _reent is optionally replaced by dedicated
thread-local objects. In this case,_REENT is optionally defined to NULL. Add
the _REENT_IS_NULL() macro to disable this check on demand.
Diffstat (limited to 'newlib/libc')
| -rw-r--r-- | newlib/libc/include/sys/reent.h | 2 | ||||
| -rw-r--r-- | newlib/libc/machine/spu/c99ppe.h | 8 | ||||
| -rw-r--r-- | newlib/libc/stdio/local.h | 3 | ||||
| -rw-r--r-- | newlib/libc/sys/arm/syscalls.c | 3 |
4 files changed, 13 insertions, 3 deletions
diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h index fa9c6cf..90f8481 100644 --- a/newlib/libc/include/sys/reent.h +++ b/newlib/libc/include/sys/reent.h @@ -763,6 +763,8 @@ extern struct _reent _impure_data __ATTRIBUTE_IMPURE_DATA__; # define _REENT _impure_ptr #endif /* __SINGLE_THREAD__ || !__DYNAMIC_REENT__ */ +#define _REENT_IS_NULL(_ptr) ((_ptr) == NULL) + #define _GLOBAL_REENT (&_impure_data) /* This value is used in stdlib/misc.c. reent/reent.c has to know it diff --git a/newlib/libc/machine/spu/c99ppe.h b/newlib/libc/machine/spu/c99ppe.h index 7b3fcb6..6e03d2c 100644 --- a/newlib/libc/machine/spu/c99ppe.h +++ b/newlib/libc/machine/spu/c99ppe.h @@ -104,6 +104,12 @@ FILE *__sfp (struct _reent *); #define __sfp_free(fp) ( (fp)->_fp = 0 ) #define CHECK_INIT(ptr) \ - do { if ((ptr) && !_REENT_CLEANUP(ptr)) __sinit (ptr); } while (0) + do \ + { \ + if (!_REENT_IS_NULL(ptr) && \ + !_REENT_CLEANUP(ptr)) \ + __sinit (ptr); \ + } \ + while (0) #define CHECK_STR_INIT(ptr) /* currently, do nothing */ #endif /* __ASSEMBLER__ */ diff --git a/newlib/libc/stdio/local.h b/newlib/libc/stdio/local.h index 24eaff3..b34c7c9 100644 --- a/newlib/libc/stdio/local.h +++ b/newlib/libc/stdio/local.h @@ -197,7 +197,8 @@ extern _READ_WRITE_RETURN_TYPE __swrite64 (struct _reent *, void *, do \ { \ struct _reent *_check_init_ptr = (ptr); \ - if ((_check_init_ptr) && !_REENT_CLEANUP(_check_init_ptr))\ + if (!_REENT_IS_NULL(_check_init_ptr) && \ + !_REENT_CLEANUP(_check_init_ptr)) \ __sinit (_check_init_ptr); \ } \ while (0) diff --git a/newlib/libc/sys/arm/syscalls.c b/newlib/libc/sys/arm/syscalls.c index 325c011..dd49ca0 100644 --- a/newlib/libc/sys/arm/syscalls.c +++ b/newlib/libc/sys/arm/syscalls.c @@ -60,7 +60,8 @@ extern void __sinit (struct _reent *); #define CHECK_INIT(ptr) \ do \ { \ - if ((ptr) && !_REENT_CLEANUP(ptr)) \ + if (!_REENT_IS_NULL(ptr) && \ + !_REENT_CLEANUP(ptr)) \ __sinit (ptr); \ } \ while (0) |