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This patch makes use of the support for several stack pointers introduced by the previous patch to switch between them as needed during unwinding. It introduces a new 'unwind-secure-frames' arm command to enable/disable mode switching during unwinding. It is enabled by default. It has been tested using an STM32L5 board (with cortex-m33) and the sample applications shipped with the STM32Cube development environment: GTZC_TZSC_MPCBB_TrustZone in STM32CubeL5/Projects/NUCLEO-L552ZE-Q/Examples/GTZC. The test consisted in setting breakpoints in various places and check that the backtrace is correct: SecureFault_Callback (Non-secure mode), __gnu_cmse_nonsecure_call (before and after the vpush instruction), SecureFault_Handler (Secure mode). This implies that we tested only some parts of this patch (only MSP* were used), but remaining parts seem reasonable. Signed-off-by: Torbjörn Svensson <torbjorn.svensson@st.com> Signed-off-by: Christophe Lyon <christophe.lyon@foss.st.com> Signed-off-by: Christophe Lyon <christophe.lyon@arm.com> |
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| .. | ||
| .gitignore | ||
| a4rc.sed | ||
| agentexpr.texi | ||
| all-cfg.texi | ||
| annotate.texinfo | ||
| ChangeLog-1991-2021 | ||
| doxy-index.in | ||
| Doxyfile-base.in | ||
| Doxyfile-gdb-api.in | ||
| Doxyfile-gdb-xref.in | ||
| Doxyfile-gdbserver.in | ||
| fdl.texi | ||
| filter-for-doxygen | ||
| filter-params.pl | ||
| gdb.texinfo | ||
| gpl.texi | ||
| guile.texi | ||
| lpsrc.sed | ||
| Makefile.in | ||
| psrc.sed | ||
| python.texi | ||
| refcard.tex | ||
| stabs.texinfo | ||
| stack_frame.eps | ||
| stack_frame.pdf | ||
| stack_frame.png | ||
| stack_frame.svg | ||
| stack_frame.txt | ||
