diff options
Diffstat (limited to 'sim/common/sim-config.h')
| -rw-r--r-- | sim/common/sim-config.h | 106 |
1 files changed, 60 insertions, 46 deletions
diff --git a/sim/common/sim-config.h b/sim/common/sim-config.h index 7278b3b..157eb1d 100644 --- a/sim/common/sim-config.h +++ b/sim/common/sim-config.h @@ -222,6 +222,10 @@ #define WITH_TARGET_BYTE_ORDER 0 /*unknown*/ #endif +#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER +#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */ +#endif + extern int current_host_byte_order; #define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \ ? WITH_HOST_BYTE_ORDER \ @@ -235,12 +239,16 @@ extern int current_target_byte_order; /* XOR endian. - In addition to the above, the simulator can support the's horrible - XOR endian mode (for instance implemented by the PowerPC). This - feature makes it possible to control the endian mode of a processor - using the MSR. */ + In addition to the above, the simulator can support the horrible + XOR endian mode (as found in the PowerPC and MIPS ISA). See + sim-core for more information. -/* #define WITH_XOR_ENDIAN 8 */ + If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes + potentially involved in the XOR munge. A typical value is 8. */ + +#ifndef WITH_XOR_ENDIAN +#define WITH_XOR_ENDIAN 0 +#endif @@ -258,24 +266,21 @@ extern int current_target_byte_order; Sets a limit on the number of processors that can be simulated. If WITH_SMP is set to zero (0), the simulator is restricted to - suporting only on processor (and as a consequence leaves the SMP + suporting only one processor (and as a consequence leaves the SMP code out of the build process). The actual number of processors is taken from the device /options/smp@<nr-cpu> */ -#if defined (WITH_SMP) - -#if WITH_SMP +#if defined (WITH_SMP) && WITH_SMP > 0 #define MAX_NR_PROCESSORS WITH_SMP -#else -#define MAX_NR_PROCESSORS 1 #endif +#ifndef MAX_NR_PROCESSORS +#define MAX_NR_PROCESSORS 1 #endif - /* Word size of host/target: Set these according to your host and target requirements. At this @@ -369,29 +374,35 @@ extern int current_environment; /* Alignment: - The PowerPC may or may not handle miss aligned transfers. An - implementation normally handles miss aligned transfers in big - endian mode but generates an exception in little endian mode. + A processor architecture may or may not handle miss aligned + transfers. + + As alternatives: both little and big endian modes take an exception + (STRICT_ALIGNMENT); big and little endian models handle mis aligned + transfers (NONSTRICT_ALIGNMENT); or the address is forced into + alignment using a mask (FORCED_ALIGNMENT). - This model. Instead allows both little and big endian modes to - either take exceptions or handle miss aligned transfers. + Mixed alignment should be specified when the simulator needs to be + able to change the alignment requirements on the fly (eg for + bi-endian support). */ - If 0 is specified then for big-endian mode miss alligned accesses - are permitted (NONSTRICT_ALIGNMENT) while in little-endian mode the - processor will fault on them (STRICT_ALIGNMENT). */ +enum sim_alignments { + MIXED_ALIGNMENT, + NONSTRICT_ALIGNMENT, + STRICT_ALIGNMENT, + FORCED_ALIGNMENT, +}; -#if defined (WITH_ALIGNMENT) +extern enum sim_alignments current_alignment; -#define NONSTRICT_ALIGNMENT 1 -#define STRICT_ALIGNMENT 2 +#if !defined (WITH_ALIGNMENT) +#define WITH_ALIGNMENT NONSTRICT_ALIGNMENT +#endif -extern int current_alignment; #define CURRENT_ALIGNMENT (WITH_ALIGNMENT \ ? WITH_ALIGNMENT \ : current_alignment) -#endif - /* Floating point suport: @@ -414,6 +425,18 @@ extern int current_floating_point; +/* Engine module. + + Use the common start/stop/restart framework (sim-engine). + Simulators using the other modules but not the engine should define + WITH_ENGINE=0. */ + +#ifndef WITH_ENGINE +#define WITH_ENGINE 1 +#endif + + + /* Debugging: Control the inclusion of debugging code. @@ -428,7 +451,14 @@ extern int current_floating_point; code */ #ifndef WITH_TRACE -#define WITH_TRACE 1 +#define WITH_TRACE (-1) +#endif + +/* Include the profiling code. Disabling this eliminates all profiling + code. */ + +#ifndef WITH_PROFILE +#define WITH_PROFILE (-1) #endif @@ -515,26 +545,10 @@ extern int current_stdio; /* complete/verify/print the simulator configuration */ +extern SIM_RC sim_config +(SIM_DESC sd, + struct _bfd *abfd); -/* For prefered_target_byte_order arugment */ - -#if defined (bfd_little_endian) -#define PREFERED_TARGET_BYTE_ORDER(IMAGE) ((IMAGE) == NULL \ - ? 0 \ - : bfd_little_endian(IMAGE) \ - ? LITTLE_ENDIAN \ - : BIG_ENDIAN) -#else -#define PREFERED_TARGET_BYTE_ORDER(IMAGE) ((IMAGE) == NULL \ - ? 0 \ - : !(IMAGE)->xvec->byteorder_big_p \ - ? LITTLE_ENDIAN \ - : BIG_ENDIAN) -#endif - - -extern void sim_config (SIM_DESC sd, - int prefered_target_byte_order); extern void print_sim_config (SIM_DESC sd); |