Add a frame-larger-than= pragma in the files where the stack frame ca…

…nnot be reduced.

Make hm2_pkuart_send() use const in the parameters so that the caller can have the data i R/O data memory.

src/emc/kinematics/genserfuncs.c

@@ -44,6 +44,14 @@
 #include "rtapi.h"
 #endif
 
+// Only gcc/g++ supports the #pragma
+#if __GNUC__ && !defined(__clang__)
+// The matrix and vector storage is just big.
+// genser_kin_jac_inv() is 2112
+// genserKinematicsInverse() is 2576
+  #pragma GCC diagnostic warning "-Wframe-larger-than=2600"
+#endif
+
 static struct haldata {
     hal_u32_t     *max_iterations;
     hal_u32_t     *last_iterations;

src/emc/tp/tp.c

@@ -55,6 +55,12 @@
 #include "hal.h"
 #endif // }
 
+// Only gcc/g++ supports the #pragma
+#if __GNUC__ && !defined(__clang__)
+// tpHandleBlendArc() is 2512
+  #pragma GCC diagnostic warning "-Wframe-larger-than=2600"
+#endif
+
 static emcmot_status_t *emcmotStatus;
 static emcmot_config_t *emcmotConfig;
 

src/hal/components/mesa_pktgyro_test.comp

@@ -106,6 +106,11 @@ FUNCTION(receive){
 
 
 }
+// Only gcc/g++ supports the #pragma
+#if __GNUC__ && !defined(__clang__)
+// EXTRA_SETUP() is 2400
+#pragma GCC diagnostic warning "-Wframe-larger-than=2500"
+#endif
 
 EXTRA_SETUP(){ // the names parameters are passed in 'prefix'.
 	if (prefix[0] == 'm'){ // should be the 'm' of hm2_....
@@ -238,7 +243,7 @@ EXTRA_SETUP(){ // the names parameters are passed in 'prefix'.
 	and receive 16 ACK datagrams as replies.
 	*/
 
-	static unsigned char disable16[11*16] ={
+	static const unsigned char disable16[11*16] ={
 	0x75, 0x65, 0x0C,0x05,  0x05,0x11, 0x01,0x01, 0x00, 0x03, 0x19,
 	0x75, 0x65, 0x0C,0x05,  0x05,0x11, 0x01,0x01, 0x00, 0x03, 0x19,
 	0x75, 0x65, 0x0C,0x05,  0x05,0x11, 0x01,0x01, 0x00, 0x03, 0x19,
@@ -259,7 +264,7 @@ EXTRA_SETUP(){ // the names parameters are passed in 'prefix'.
 	0x75, 0x65, 0x0C,0x05,  0x05,0x11, 0x01,0x01, 0x00, 0x03, 0x19,
 	0x75, 0x65, 0x0C,0x05,  0x05,0x11, 0x01,0x01, 0x00, 0x03, 0x19
 	};
-	static rtapi_u16 disable_size16[16]={11,11,11,11, 11,11,11,11, 11,11,11,11, 11,11,11,11};
+	static const rtapi_u16 disable_size16[16]={11,11,11,11, 11,11,11,11, 11,11,11,11, 11,11,11,11};
 	num_frames = 16;
 	retval=hm2_pktuart_send(name, disable16, &num_frames, disable_size16);
 	rtapi_print_msg(RTAPI_MSG_INFO, "%s sent: bytes %d, frames %u\n", name, retval, num_frames);

src/hal/drivers/mesa-hostmot2/hostmot2-serial.h

@@ -31,7 +31,7 @@ int hm2_pktuart_setup(char *name, int bitrate, rtapi_s32 tx_mode, rtapi_s32 rx_m
 int hm2_pktuart_setup_rx(char *name, unsigned int bitrate, unsigned int filter_hz, unsigned int parity, int frame_delay, bool rx_enable, bool rx_mask);
 int hm2_pktuart_setup_tx(char *name, unsigned int bitrate, unsigned int parity, int frame_delay, bool drive_enable, bool drive_auto, int enable_delay);
 void hm2_pktuart_reset(char *name);
-int hm2_pktuart_send(char *name,  unsigned char data[], rtapi_u8 *num_frames, rtapi_u16 frame_sizes[]);
+int hm2_pktuart_send(char *name, const unsigned char data[], rtapi_u8 *num_frames, const rtapi_u16 frame_sizes[]);
 int hm2_pktuart_read(char *name, unsigned char data[],  rtapi_u8 *num_frames, rtapi_u16 *max_frame_length, rtapi_u16 frame_sizes[]);
 int hm2_pktuart_queue_get_frame_sizes(char *name, rtapi_u32 fsizes[]);
 int hm2_pktuart_queue_read_data(char *name, rtapi_u32 *data, int bytes);

src/hal/drivers/mesa-hostmot2/hostmot2.h

@@ -1974,7 +1974,7 @@ int hm2_pktuart_setup(char *name, unsigned int bitrate, rtapi_s32 tx_mode, rtapi
 int hm2_pktuart_setup_rx(char *name, unsigned int bitrate, unsigned int filter_hz, unsigned int parity, int frame_delay, bool rx_enable, bool rx_mask);
 int hm2_pktuart_setup_tx(char *name, unsigned int bitrate, unsigned int parity, int frame_delay, bool drive_enable, bool drive_auto, int enable_delay);
 void hm2_pktuart_reset(char *name);
-int hm2_pktuart_send(char *name,  unsigned char data[], rtapi_u8 *num_frames, rtapi_u16 frame_sizes[]);
+int hm2_pktuart_send(char *name, const unsigned char data[], rtapi_u8 *num_frames, rtapi_u16 const frame_sizes[]);
 int hm2_pktuart_read(char *name, unsigned char data[],  rtapi_u8 *num_frames, rtapi_u16 *max_frame_length, rtapi_u16 frame_sizes[]);
 
 //

src/hal/drivers/mesa-hostmot2/pktuart.c

@@ -428,7 +428,7 @@ int hm2_pktuart_setup(char *name, unsigned int bitrate, rtapi_s32 tx_mode, rtapi
 
 
 EXPORT_SYMBOL_GPL(hm2_pktuart_send);
-int hm2_pktuart_send(char *name,  unsigned char data[], rtapi_u8 *num_frames, rtapi_u16 frame_sizes[])
+int hm2_pktuart_send(char *name, const unsigned char data[], rtapi_u8 *num_frames, const rtapi_u16 frame_sizes[])
 {
     hostmot2_t *hm2;
     rtapi_u32 buff;