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SPDX-License-Identifier: CC-BY-SA-4.0
copyrights:
- Copyright (C) 2020 embedded brains GmbH & Co. KG
enabled-by: true
functional-type: function
links:
- role: interface-function
uid: ../if/return-address
rationale: |
From the GNU C compiler documentation:
* When inlining the expected behavior is that the function returns
the address of the function that is returned to.
* When the top of the stack has been reached, this function returns
an unspecified value.
* Additional post-processing of the returned value may be needed, see
``__builtin_extract_return_addr``.
* The stored representation of the return address in memory may be
different from the address returned by ``__builtin_return_address``.
Under these circumstances it is at least difficult to specify
what the actual result of this macro is.
references: []
requirement-type: functional
text: |
When the code is compiled with the GNU C compiler,
the ${../if/return-address:/name} macro shall evaluate to the
code ``__builtin_return_address( 0 )``.
type: requirement
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