Hello,
Thank you for the report.
On Tue, Mar 08, 2016 at 11:36:25AM +0000, Andy Pomfret wrote:
> To recreate: Fresh build of OpenOCD 0.9.0, fresh build of the STM32F4DISCOVERY
> demo project from ChibiOS 14.1.4 using default settings. OpenOCD is unable to
> identify ChibiOS because the chSysInit symbol is missing from the binary.
So do you basically suggest to remove chSysInit mentioning from
OpenOCD altogether and rely solely on "ch"?
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** [tickets:#121] ChibiOS rtos detection fails with LTO enabled**
**Status:** new
**Milestone:** 0.9.0
**Labels:** rtos chibios
**Created:** Tue Mar 08, 2016 11:36 AM UTC by Andy Pomfret
**Last Updated:** Tue Mar 08, 2016 11:36 AM UTC
**Owner:** nobody
OpenOCD relies on the symbol 'chSysInit' being present to identify ChibiOS for
rtos thread support. However, if link-time optimisation (LTO) is enabled for
the ChibiOS build, as it is by default, this function may be inlined and its
symbol dropped from the linked binary.
The symbols 'ch' and 'ch_debug' are also required (currently if 'ch' is found
and 'ch_debug' is not, recognition of ChibiOS will fail with an info message)
so the chances of a false positive would be resonably small even if the
reliance on chSysInit were removed.
To recreate: Fresh build of OpenOCD 0.9.0, fresh build of the STM32F4DISCOVERY
demo project from ChibiOS 14.1.4 using default settings. OpenOCD is unable to
identify ChibiOS because the chSysInit symbol is missing from the binary.
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