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| author | Yvan Roux <yvan.roux@foss.st.com> | 2022-06-24 17:16:54 +0200 |
|---|---|---|
| committer | Yvan Roux <yvan.roux@foss.st.com> | 2022-06-24 17:16:54 +0200 |
| commit | 10245fe8171a292dcf50051a33ec5bae7b08cb54 (patch) | |
| tree | 1e1bef29c051fba833ce362d698e06988f3a6d07 /gdb/arm-tdep.c | |
| parent | 9704b8b4bc58f4f464961cca97d362fd33740ce8 (diff) | |
| download | gdb-10245fe8171a292dcf50051a33ec5bae7b08cb54.zip gdb-10245fe8171a292dcf50051a33ec5bae7b08cb54.tar.gz gdb-10245fe8171a292dcf50051a33ec5bae7b08cb54.tar.bz2 | |
gdb/arm: Update the value of active sp when base sp changes
For Arm Cortex-M33 with security extensions, there are 4 different
stacks pointers (msp_s, msp_ns, psp_s, psp_ns).
When plain "sp" is updated during unwinding of the stack, the active
stack pointer of the 4 stack pointers needs to be kept in sync.
Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
Signed-off-by: Yvan Roux <yvan.roux@foss.st.com>
Diffstat (limited to 'gdb/arm-tdep.c')
| -rw-r--r-- | gdb/arm-tdep.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c index 0c90748..96d70d4 100644 --- a/gdb/arm-tdep.c +++ b/gdb/arm-tdep.c @@ -923,6 +923,7 @@ thumb_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR start, CORE_ADDR limit, struct arm_prologue_cache *cache) { + arm_gdbarch_tdep *tdep = (arm_gdbarch_tdep *) gdbarch_tdep (gdbarch); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); enum bfd_endian byte_order_for_code = gdbarch_byte_order_for_code (gdbarch); int i; @@ -1398,9 +1399,6 @@ thumb_analyze_prologue (struct gdbarch *gdbarch, unrecognized_pc = start; } - arm_gdbarch_tdep *tdep - = (arm_gdbarch_tdep *) gdbarch_tdep (gdbarch); - /* Make sure we are dealing with a target that supports ARMv8.1-m PACBTI. */ if (cache != nullptr && tdep->have_pacbti @@ -1460,7 +1458,11 @@ thumb_analyze_prologue (struct gdbarch *gdbarch, for (i = 0; i < gdbarch_num_regs (gdbarch); i++) if (stack.find_reg (gdbarch, i, &offset)) - cache->saved_regs[i].set_addr (offset); + { + cache->saved_regs[i].set_addr (offset); + if (i == ARM_SP_REGNUM) + arm_cache_set_active_sp_value(cache, tdep, offset); + } return unrecognized_pc; } @@ -2087,7 +2089,11 @@ arm_analyze_prologue (struct gdbarch *gdbarch, for (regno = 0; regno < ARM_FPS_REGNUM; regno++) if (stack.find_reg (gdbarch, regno, &offset)) - cache->saved_regs[regno].set_addr (offset); + { + cache->saved_regs[regno].set_addr (offset); + if (regno == ARM_SP_REGNUM) + arm_cache_set_active_sp_value(cache, tdep, offset); + } } arm_debug_printf ("Prologue scan stopped at %s", |