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| author |   Christophe Lyon <christophe.lyon@arm.com> | 2022-04-01 10:22:16 +0100 |
|---|---|---|
| committer | Christophe Lyon <christophe.lyon@arm.com> | 2022-04-27 15:18:18 +0100 |
| commit | ae7e2f45aa4798be449f282bbf75ad41e73f055e (patch) | |
| tree | 9f22bd3ae6c6e9dd732f1bb7a10d22e6693d1cc9 /gdb/arm-tdep.h | |
| parent | gdb/arm: Introduce arm_cache_init (diff) | |
| download | binutils-gdb-ae7e2f45aa4798be449f282bbf75ad41e73f055e.tar.gz binutils-gdb-ae7e2f45aa4798be449f282bbf75ad41e73f055e.tar.bz2 binutils-gdb-ae7e2f45aa4798be449f282bbf75ad41e73f055e.zip | |
gdb/arm: Add support for multiple stack pointers on Cortex-M
Armv8-M architecture with Security extension features four stack pointers
to handle Secure and Non-secure modes.
This patch adds support to switch between them as needed during
unwinding, and replaces all updates of cache->prev_sp with calls to
arm_cache_set_prev_sp.
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>
Diffstat (limited to 'gdb/arm-tdep.h')
| -rw-r--r-- | gdb/arm-tdep.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gdb/arm-tdep.h b/gdb/arm-tdep.h index 40170673fde..864406e98d2 100644 --- a/gdb/arm-tdep.h +++ b/gdb/arm-tdep.h @@ -125,10 +125,17 @@ struct arm_gdbarch_tdep : gdbarch_tdep register. */ int pacbti_pseudo_count = 0; /* Total number of PACBTI pseudo registers. */ - int m_profile_msp_regnum = 0; /* M-profile MSP register number. */ - int m_profile_psp_regnum = 0; /* M-profile PSP register number. */ + int m_profile_msp_regnum = ARM_SP_REGNUM; /* M-profile MSP register number. */ + int m_profile_psp_regnum = ARM_SP_REGNUM; /* M-profile PSP register number. */ + + /* Secure and Non-secure stack pointers with security extension. */ + int m_profile_msp_ns_regnum = ARM_SP_REGNUM; /* M-profile MSP_NS register number. */ + int m_profile_psp_ns_regnum = ARM_SP_REGNUM; /* M-profile PSP_NS register number. */ + int m_profile_msp_s_regnum = ARM_SP_REGNUM; /* M-profile MSP_S register number. */ + int m_profile_psp_s_regnum = ARM_SP_REGNUM; /* M-profile PSP_S register number. */ bool is_m = false; /* Does the target follow the "M" profile. */ + bool have_sec_ext = false; /* Do we have security extensions? */ CORE_ADDR lowest_pc = 0; /* Lowest address at which instructions will appear. */ |