unsigned int usp; /* 0x66 User mode stack pointer */
} registers;
-/************** Prototypes for local library functions ***********************/
-
-/* Copy of strcpy from libc. */
-static char *gdb_cris_strcpy (char *s1, const char *s2);
-
-/* Copy of strlen from libc. */
-static int gdb_cris_strlen (const char *s);
-
-/* Copy of memchr from libc. */
-static void *gdb_cris_memchr (const void *s, int c, int n);
-
-/* Copy of strtol from libc. Does only support base 16. */
-static int gdb_cris_strtol (const char *s, char **endptr, int base);
-
-/********************** Prototypes for local functions. **********************/
-/* Copy the content of a register image into another. The size n is
- the size of the register image. Due to struct assignment generation of
- memcpy in libc. */
-static void copy_registers (registers *dptr, registers *sptr, int n);
-
-/* Copy the stored registers from the stack. Put the register contents
- of thread thread_id in the struct reg. */
-static void copy_registers_from_stack (int thread_id, registers *reg);
-
-/* Copy the registers to the stack. Put the register contents of thread
- thread_id from struct reg to the stack. */
-static void copy_registers_to_stack (int thread_id, registers *reg);
-
-/* Write a value to a specified register regno in the register image
- of the current thread. */
-static int write_register (int regno, char *val);
-
-/* Write a value to a specified register in the stack of a thread other
- than the current thread. */
-static int write_stack_register(int thread_id, int regno, char *valptr);
-
-/* Read a value from a specified register in the register image. Returns the
- status of the read operation. The register value is returned in valptr. */
-static int read_register (char regno, unsigned int *valptr);
-
/* Serial port, reads one character. ETRAX 100 specific. from debugport.c */
int getDebugChar (void);
void enableDebugIRQ (void);
-/* Returns the integer equivalent of a hexadecimal character. */
-static int hex (char ch);
-
-/* Convert the memory, pointed to by mem into hexadecimal representation.
- Put the result in buf, and return a pointer to the last character
- in buf (null). */
-static char *mem2hex (char *buf, unsigned char *mem, int count);
-
-/* Convert the array, in hexadecimal representation, pointed to by buf into
- binary representation. Put the result in mem, and return a pointer to
- the character after the last byte written. */
-static unsigned char *hex2mem (unsigned char *mem, char *buf, int count);
-
-/* Put the content of the array, in binary representation, pointed to by buf
- into memory pointed to by mem, and return a pointer to
- the character after the last byte written. */
-static unsigned char *bin2mem (unsigned char *mem, unsigned char *buf, int count);
-
-/* Await the sequence $<data>#<checksum> and store <data> in the array buffer
- returned. */
-static void getpacket (char *buffer);
-
-/* Send $<data>#<checksum> from the <data> in the array buffer. */
-static void putpacket (char *buffer);
-
-/* Build and send a response packet in order to inform the host the
- stub is stopped. */
-static void stub_is_stopped (int sigval);
-
-/* All expected commands are sent from remote.c. Send a response according
- to the description in remote.c. */
-static void handle_exception (int sigval);
-
-/* Performs a complete re-start from scratch. ETRAX specific. */
-static void kill_restart (void);
-
/******************** Prototypes for global functions. ***********************/
/* The string str is prepended with the GDB printout token and sent. */
return x;
}
-/********************************* Register image ****************************/
-/* Copy the content of a register image into another. The size n is
- the size of the register image. Due to struct assignment generation of
- memcpy in libc. */
-static void
-copy_registers (registers *dptr, registers *sptr, int n)
-{
- unsigned char *dreg;
- unsigned char *sreg;
-
- for (dreg = (unsigned char*)dptr, sreg = (unsigned char*)sptr; n > 0; n--)
- *dreg++ = *sreg++;
-}
-
-#ifdef PROCESS_SUPPORT
-/* Copy the stored registers from the stack. Put the register contents
- of thread thread_id in the struct reg. */
-static void
-copy_registers_from_stack (int thread_id, registers *regptr)
-{
- int j;
- stack_registers *s = (stack_registers *)stack_list[thread_id];
- unsigned int *d = (unsigned int *)regptr;
-
- for (j = 13; j >= 0; j--)
- *d++ = s->r[j];
- regptr->sp = (unsigned int)stack_list[thread_id];
- regptr->pc = s->pc;
- regptr->dccr = s->dccr;
- regptr->srp = s->srp;
-}
-
-/* Copy the registers to the stack. Put the register contents of thread
- thread_id from struct reg to the stack. */
-static void
-copy_registers_to_stack (int thread_id, registers *regptr)
-{
- int i;
- stack_registers *d = (stack_registers *)stack_list[thread_id];
- unsigned int *s = (unsigned int *)regptr;
-
- for (i = 0; i < 14; i++) {
- d->r[i] = *s++;
- }
- d->pc = regptr->pc;
- d->dccr = regptr->dccr;
- d->srp = regptr->srp;
-}
-#endif
-
-/* Write a value to a specified register in the register image of the current
- thread. Returns status code SUCCESS, E02 or E05. */
-static int
-write_register (int regno, char *val)
-{
- int status = SUCCESS;
- registers *current_reg = ®
-
- if (regno >= R0 && regno <= PC) {
- /* 32-bit register with simple offset. */
- hex2mem ((unsigned char *)current_reg + regno * sizeof(unsigned int),
- val, sizeof(unsigned int));
- }
- else if (regno == P0 || regno == VR || regno == P4 || regno == P8) {
- /* Do not support read-only registers. */
- status = E02;
- }
- else if (regno == CCR) {
- /* 16 bit register with complex offset. (P4 is read-only, P6 is not implemented,
- and P7 (MOF) is 32 bits in ETRAX 100LX. */
- hex2mem ((unsigned char *)&(current_reg->ccr) + (regno-CCR) * sizeof(unsigned short),
- val, sizeof(unsigned short));
- }
- else if (regno >= MOF && regno <= USP) {
- /* 32 bit register with complex offset. (P8 has been taken care of.) */
- hex2mem ((unsigned char *)&(current_reg->ibr) + (regno-IBR) * sizeof(unsigned int),
- val, sizeof(unsigned int));
- }
- else {
- /* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
- status = E05;
- }
- return status;
-}
-
-#ifdef PROCESS_SUPPORT
-/* Write a value to a specified register in the stack of a thread other
- than the current thread. Returns status code SUCCESS or E07. */
-static int
-write_stack_register (int thread_id, int regno, char *valptr)
-{
- int status = SUCCESS;
- stack_registers *d = (stack_registers *)stack_list[thread_id];
- unsigned int val;
-
- hex2mem ((unsigned char *)&val, valptr, sizeof(unsigned int));
- if (regno >= R0 && regno < SP) {
- d->r[regno] = val;
- }
- else if (regno == SP) {
- stack_list[thread_id] = val;
- }
- else if (regno == PC) {
- d->pc = val;
- }
- else if (regno == SRP) {
- d->srp = val;
- }
- else if (regno == DCCR) {
- d->dccr = val;
- }
- else {
- /* Do not support registers in the current thread. */
- status = E07;
- }
- return status;
-}
-#endif
-
-/* Read a value from a specified register in the register image. Returns the
- value in the register or -1 for non-implemented registers.
- Should check consistency_status after a call which may be E05 after changes
- in the implementation. */
-static int
-read_register (char regno, unsigned int *valptr)
-{
- registers *current_reg = ®
-
- if (regno >= R0 && regno <= PC) {
- /* 32-bit register with simple offset. */
- *valptr = *(unsigned int *)((char *)current_reg + regno * sizeof(unsigned int));
- return SUCCESS;
- }
- else if (regno == P0 || regno == VR) {
- /* 8 bit register with complex offset. */
- *valptr = (unsigned int)(*(unsigned char *)
- ((char *)&(current_reg->p0) + (regno-P0) * sizeof(char)));
- return SUCCESS;
- }
- else if (regno == P4 || regno == CCR) {
- /* 16 bit register with complex offset. */
- *valptr = (unsigned int)(*(unsigned short *)
- ((char *)&(current_reg->p4) + (regno-P4) * sizeof(unsigned short)));
- return SUCCESS;
- }
- else if (regno >= MOF && regno <= USP) {
- /* 32 bit register with complex offset. */
- *valptr = *(unsigned int *)((char *)&(current_reg->p8)
- + (regno-P8) * sizeof(unsigned int));
- return SUCCESS;
- }
- else {
- /* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
- consistency_status = E05;
- return E05;
- }
-}
-
/********************************** Packet I/O ******************************/
/* Returns the integer equivalent of a hexadecimal character. */
static int
putpacket(remcomOutBuffer);
}
+/********************************* Register image ****************************/
+/* Copy the content of a register image into another. The size n is
+ the size of the register image. Due to struct assignment generation of
+ memcpy in libc. */
+static void
+copy_registers (registers *dptr, registers *sptr, int n)
+{
+ unsigned char *dreg;
+ unsigned char *sreg;
+
+ for (dreg = (unsigned char*)dptr, sreg = (unsigned char*)sptr; n > 0; n--)
+ *dreg++ = *sreg++;
+}
+
+#ifdef PROCESS_SUPPORT
+/* Copy the stored registers from the stack. Put the register contents
+ of thread thread_id in the struct reg. */
+static void
+copy_registers_from_stack (int thread_id, registers *regptr)
+{
+ int j;
+ stack_registers *s = (stack_registers *)stack_list[thread_id];
+ unsigned int *d = (unsigned int *)regptr;
+
+ for (j = 13; j >= 0; j--)
+ *d++ = s->r[j];
+ regptr->sp = (unsigned int)stack_list[thread_id];
+ regptr->pc = s->pc;
+ regptr->dccr = s->dccr;
+ regptr->srp = s->srp;
+}
+
+/* Copy the registers to the stack. Put the register contents of thread
+ thread_id from struct reg to the stack. */
+static void
+copy_registers_to_stack (int thread_id, registers *regptr)
+{
+ int i;
+ stack_registers *d = (stack_registers *)stack_list[thread_id];
+ unsigned int *s = (unsigned int *)regptr;
+
+ for (i = 0; i < 14; i++) {
+ d->r[i] = *s++;
+ }
+ d->pc = regptr->pc;
+ d->dccr = regptr->dccr;
+ d->srp = regptr->srp;
+}
+#endif
+
+/* Write a value to a specified register in the register image of the current
+ thread. Returns status code SUCCESS, E02 or E05. */
+static int
+write_register (int regno, char *val)
+{
+ int status = SUCCESS;
+ registers *current_reg = ®
+
+ if (regno >= R0 && regno <= PC) {
+ /* 32-bit register with simple offset. */
+ hex2mem ((unsigned char *)current_reg + regno * sizeof(unsigned int),
+ val, sizeof(unsigned int));
+ }
+ else if (regno == P0 || regno == VR || regno == P4 || regno == P8) {
+ /* Do not support read-only registers. */
+ status = E02;
+ }
+ else if (regno == CCR) {
+ /* 16 bit register with complex offset. (P4 is read-only, P6 is not implemented,
+ and P7 (MOF) is 32 bits in ETRAX 100LX. */
+ hex2mem ((unsigned char *)&(current_reg->ccr) + (regno-CCR) * sizeof(unsigned short),
+ val, sizeof(unsigned short));
+ }
+ else if (regno >= MOF && regno <= USP) {
+ /* 32 bit register with complex offset. (P8 has been taken care of.) */
+ hex2mem ((unsigned char *)&(current_reg->ibr) + (regno-IBR) * sizeof(unsigned int),
+ val, sizeof(unsigned int));
+ }
+ else {
+ /* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
+ status = E05;
+ }
+ return status;
+}
+
+#ifdef PROCESS_SUPPORT
+/* Write a value to a specified register in the stack of a thread other
+ than the current thread. Returns status code SUCCESS or E07. */
+static int
+write_stack_register (int thread_id, int regno, char *valptr)
+{
+ int status = SUCCESS;
+ stack_registers *d = (stack_registers *)stack_list[thread_id];
+ unsigned int val;
+
+ hex2mem ((unsigned char *)&val, valptr, sizeof(unsigned int));
+ if (regno >= R0 && regno < SP) {
+ d->r[regno] = val;
+ }
+ else if (regno == SP) {
+ stack_list[thread_id] = val;
+ }
+ else if (regno == PC) {
+ d->pc = val;
+ }
+ else if (regno == SRP) {
+ d->srp = val;
+ }
+ else if (regno == DCCR) {
+ d->dccr = val;
+ }
+ else {
+ /* Do not support registers in the current thread. */
+ status = E07;
+ }
+ return status;
+}
+#endif
+
+/* Read a value from a specified register in the register image. Returns the
+ value in the register or -1 for non-implemented registers.
+ Should check consistency_status after a call which may be E05 after changes
+ in the implementation. */
+static int
+read_register (char regno, unsigned int *valptr)
+{
+ registers *current_reg = ®
+
+ if (regno >= R0 && regno <= PC) {
+ /* 32-bit register with simple offset. */
+ *valptr = *(unsigned int *)((char *)current_reg + regno * sizeof(unsigned int));
+ return SUCCESS;
+ }
+ else if (regno == P0 || regno == VR) {
+ /* 8 bit register with complex offset. */
+ *valptr = (unsigned int)(*(unsigned char *)
+ ((char *)&(current_reg->p0) + (regno-P0) * sizeof(char)));
+ return SUCCESS;
+ }
+ else if (regno == P4 || regno == CCR) {
+ /* 16 bit register with complex offset. */
+ *valptr = (unsigned int)(*(unsigned short *)
+ ((char *)&(current_reg->p4) + (regno-P4) * sizeof(unsigned short)));
+ return SUCCESS;
+ }
+ else if (regno >= MOF && regno <= USP) {
+ /* 32 bit register with complex offset. */
+ *valptr = *(unsigned int *)((char *)&(current_reg->p8)
+ + (regno-P8) * sizeof(unsigned int));
+ return SUCCESS;
+ }
+ else {
+ /* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
+ consistency_status = E05;
+ return E05;
+ }
+}
+
/********************************** Handle exceptions ************************/
/* Build and send a response packet in order to inform the host the
stub is stopped. TAAn...:r...;n...:r...;n...:r...;
putpacket (remcomOutBuffer);
}
+/* Performs a complete re-start from scratch. */
+static void
+kill_restart (void)
+{
+ machine_restart("");
+}
+
/* All expected commands are sent from remote.c. Send a response according
to the description in remote.c. */
static void
}
}
-/* Performs a complete re-start from scratch. */
-static void
-kill_restart ()
-{
- machine_restart("");
-}
-
/********************************** Breakpoint *******************************/
/* The hook for both a static (compiled) and a dynamic breakpoint set by GDB.
An internal stack is used by the stub. The register image of the caller is
git.openpandora.org / pandora-kernel.git / commitdiff