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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2019-01-28 08:33:08 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2019-05-02 13:54:11 +0200
commit78c98f9074135d3dab4e39544e0a537f92388fce (patch)
tree6f6d96e8e0911fe2aa27ec89cca52d56d3ed6f7e /arch/s390/Makefile
parents390/opcodes: add missing instructions to the disassembler (diff)
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s390/unwind: introduce stack unwind API
Rework the dump_trace() stack unwinder interface to support different unwinding algorithms. The new interface looks like this: struct unwind_state state; unwind_for_each_frame(&state, task, regs, start_stack) do_something(state.sp, state.ip, state.reliable); The unwind_bc.c file contains the implementation for the classic back-chain unwinder. One positive side effect of the new code is it now handles ftraced functions gracefully. It prints the real name of the return function instead of 'return_to_handler'. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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