Commit Graph

15 Commits (95c17a4ff4425e18a7302d3749b8eedf1539f36c)

Author SHA1 Message Date
Christopher Haster 98d55e71d8 Moved core_util_atomic_*_ptr functions out of cortex switch 2016-07-09 11:14:16 -05:00
Christopher Haster 70013d03b6 Fixed casts around calls to atomic u32 functions
- uint32_t -> void *
- void ** -> uint32_t *

For whatever reason `uintptr_t` and `uint32_t` expand to incompatible
types `unsigned int` and `unsigned long int`. This is implicitely casted
when passed by value, but causes a warning in gcc and error in iar when
passed by pointer.

This issue is not present on x86_32 gcc
2016-07-09 11:13:20 -05:00
Christopher Haster 2c78dca69c Fixed typo in incr/decr function
Result of last minute change, interestingly only emits a
warning in gcc.
2016-07-07 22:51:31 -05:00
Christopher Haster 9067148618 Standardized style of critical.h
per @0xc0170
2016-07-06 13:06:37 -05:00
Christopher Haster 26726cc170 Added proper usage of standard types for critical pointer functions 2016-07-06 13:06:34 -05:00
Christopher Haster cf6f8e33fb Added cas instrinsics for pointer values
- core_util_atomic_cas
- core_util_atomic_incr
- core_util_atomic_decr
2016-07-06 13:04:36 -05:00
Anna Bridge 329f8a10dc Add core_util_ prefix to are_interrupts_enabled() function.
For consistency with other exposed functions from this file, core_util_
prefix should be added.
2016-07-01 15:08:31 +01:00
Anna Bridge 2292794385 Reverse the logic to get_interrupts_disabled() to are_interrupts_enabled()
and update the using functions accordingly.

Usage:
bool interrupts_enabled = are_interrupts_enabled()

Remove superfluos shift in are_interrupts_enabled().
2016-07-01 14:55:53 +01:00
Anna Bridge 9f052bc500 Update function get_interrupts_disabled() to return a bool value rather
than an integer. This removes the need for all users to mask the returned
value with 0x1 to determine interrupt status.
Expose this function externally to allow other users to check interrupt
status in a manner which will work for both cortex-A and cortex-M .
Usage:
bool disabled = get_interrupts_disabled();
2016-07-01 14:53:53 +01:00
Jaeden Amero af572350f0 Don't call __disable_irq for uVisor
This is a hack to get debug builds applications that use uVisor to work.
The assertions in core_util_critical_section fail because interrupts can't
actually be disabled from unprivileged mode.

Without this hack, core_util_critical_section_enter() calls
mbed_assert_internal() when the assertion fails, which calls
core_util_critical_section_enter() again, which calls
mbed_assert_internal() again; this is infinite recursion.

core_util_critical_section_enter needs some fixing.
2016-06-14 14:09:56 +00:00
0xc0170 81a7bdc482 critical - fix __STDC_LIMIT_MACROS for armcc
UINT32_MAX is defined only if __STDC_LIMIT_MACROS is provided prior
including stdint.h
2016-06-13 22:14:13 +01:00
0xc0170 b5c4faf6f6 Critical section - fix for cortex-a
Cortex-A does not contain primask, there's 7th bit in the CPSR register,
that contains this information. Fixes #1851.

Renames primask variables to interrupts_disabled.
2016-06-06 12:17:29 +01:00
Russ Butler f3b1d45963 Add functions for atomic access
Add core util functions for atomic increment, atomic decrement and
compare and set.
2016-06-06 10:55:55 +01:00
0xc0170 5e62c37f17 Critical - use mbed assert
uARM complained about assert:
```
Error: L6218E: Undefined symbol __aeabi_assert (referred from critical.o).
Finished: 0 information, 0 warning and 1 error messages.
[ERROR] Error: L6218E: Undefined symbol __aeabi_assert (referred from critical.o).
Finished: 0 information, 0 warning and 1 error messages.
```
2016-05-31 15:07:36 +01:00
Anna Bridge 462c917ad0 Add a c based re-entrant critical section API
This includes a generic critical section implementation.  This
implementation also allow a user to start a critical section while
interrupts are already disabled.
2016-05-27 23:27:52 -05:00