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| author | Peter Maydell | 2018-10-08 15:55:04 +0200 |
|---|---|---|
| committer | Peter Maydell | 2018-10-08 15:55:04 +0200 |
| commit | 86f026de22d8854eecc004af44895de74225794f (patch) | |
| tree | c79c9feeda29a5228e9bebabd6da68579c7eaea3 /target/arm/cpu.h | |
| parent | target/arm: Define new TBFLAG for v8M stack checking (diff) | |
| download | qemu-86f026de22d8854eecc004af44895de74225794f.tar.gz qemu-86f026de22d8854eecc004af44895de74225794f.tar.xz qemu-86f026de22d8854eecc004af44895de74225794f.zip | |
target/arm: Define new EXCP type for v8M stack overflows
Define EXCP_STKOF, and arrange for it to cause us to take
a UsageFault with CFSR.STKOF set.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181002163556.10279-3-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/cpu.h')
| -rw-r--r-- | target/arm/cpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index fde9684503..3a2aff1192 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -56,6 +56,7 @@ #define EXCP_SEMIHOST 16 /* semihosting call */ #define EXCP_NOCP 17 /* v7M NOCP UsageFault */ #define EXCP_INVSTATE 18 /* v7M INVSTATE UsageFault */ +#define EXCP_STKOF 19 /* v8M STKOF UsageFault */ /* NB: add new EXCP_ defines to the array in arm_log_exception() too */ #define ARMV7M_EXCP_RESET 1 @@ -1388,6 +1389,7 @@ FIELD(V7M_CFSR, UNDEFINSTR, 16 + 0, 1) FIELD(V7M_CFSR, INVSTATE, 16 + 1, 1) FIELD(V7M_CFSR, INVPC, 16 + 2, 1) FIELD(V7M_CFSR, NOCP, 16 + 3, 1) +FIELD(V7M_CFSR, STKOF, 16 + 4, 1) FIELD(V7M_CFSR, UNALIGNED, 16 + 8, 1) FIELD(V7M_CFSR, DIVBYZERO, 16 + 9, 1) |