diff options
Diffstat (limited to 'src/arch/arm/system.hh')
| -rw-r--r-- | src/arch/arm/system.hh | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/arch/arm/system.hh b/src/arch/arm/system.hh index 46103f42c..e7696a4fd 100644 --- a/src/arch/arm/system.hh +++ b/src/arch/arm/system.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010, 2012-2013, 2015-2017 ARM Limited + * Copyright (c) 2010, 2012-2013, 2015-2018 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall @@ -122,6 +122,11 @@ class ArmSystem : public System */ const AddrRange _m5opRange; + /** + * True if the Semihosting interface is enabled. + */ + ArmSemihosting *const semihosting; + protected: /** * Get a boot loader that matches the kernel. @@ -228,6 +233,9 @@ class ArmSystem : public System */ const AddrRange &m5opRange() const { return _m5opRange; } + /** Is Arm Semihosting support enabled? */ + bool haveSemihosting() const { return semihosting != nullptr; } + /** * Returns a valid ArmSystem pointer if using ARM ISA, it fails * otherwise. @@ -280,6 +288,17 @@ class ArmSystem : public System /** Returns true if ASID is 16 bits for the system of a specific thread * context while in AArch64 (ARMv8) */ static bool haveLargeAsid64(ThreadContext *tc); + + /** Is Arm Semihosting support enabled? */ + static bool haveSemihosting(ThreadContext *tc); + + /** Make a Semihosting call from aarch64 */ + static uint64_t callSemihosting64(ThreadContext *tc, + uint32_t op, uint64_t param); + + /** Make a Semihosting call from aarch32 */ + static uint32_t callSemihosting32(ThreadContext *tc, + uint32_t op, uint32_t param); }; class GenericArmSystem : public ArmSystem |