diff options
Diffstat (limited to 'src/command.h')
| -rw-r--r-- | src/command.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/command.h b/src/command.h index 2bbe37f8..c6d8a69c 100644 --- a/src/command.h +++ b/src/command.h @@ -15,6 +15,10 @@ // Flags for command handler declarations. #define HF_IN_SHUTDOWN 0x01 // Handler can run even when in emergency stop +// Declare a constant exported to the host +#define DECL_CONSTANT(NAME, VALUE) \ + _DECL_CONSTANT(NAME, VALUE) + // Send an output message (and declare a static message type for it) #define output(FMT, args...) \ _sendf(_DECL_OUTPUT(FMT) , ##args ) @@ -59,6 +63,11 @@ extern const uint32_t command_identify_size; = "_DECL_COMMAND " __stringify(FUNC) " " __stringify(FLAGS) " " MSG; \ void __visible FUNC(uint32_t*) +#define _DECL_CONSTANT(NAME, VALUE) \ + char __PASTE(_DECLC_ ## NAME ## _, __LINE__) [] \ + __visible __section(".compile_time_request") \ + = "_DECL_CONSTANT " __stringify(NAME) " " __stringify(VALUE) + // Create a compile time request and return a unique (incrementing id) // for that request. #define _DECL_REQUEST_ID(REQUEST, ID_SECTION) ({ \ |