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https://github.com/edk2-porting/linux-next.git
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cris/kgdb: Kill forward declarations for static functions
Move some functions around and kill forward declarations for static functions. This fixes: arch/cris/arch-v10/kernel/kgdb.c:255:13: warning: 'copy_registers_from_stack' declared 'static' but never defined [-Wunused-function] arch/cris/arch-v10/kernel/kgdb.c:259:13: warning: 'copy_registers_to_stack' declared 'static' but never defined [-Wunused-function] arch/cris/arch-v10/kernel/kgdb.c:267:12: warning: 'write_stack_register' declared 'static' but never defined [-Wunused-function] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven
parent
4bb77a9dfa
commit
4bf01dda08
@ -230,46 +230,6 @@ struct register_image
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unsigned int usp; /* 0x66 User mode stack pointer */
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} registers;
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/************** Prototypes for local library functions ***********************/
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/* Copy of strcpy from libc. */
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static char *gdb_cris_strcpy (char *s1, const char *s2);
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/* Copy of strlen from libc. */
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static int gdb_cris_strlen (const char *s);
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/* Copy of memchr from libc. */
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static void *gdb_cris_memchr (const void *s, int c, int n);
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/* Copy of strtol from libc. Does only support base 16. */
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static int gdb_cris_strtol (const char *s, char **endptr, int base);
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/********************** Prototypes for local functions. **********************/
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/* Copy the content of a register image into another. The size n is
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the size of the register image. Due to struct assignment generation of
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memcpy in libc. */
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static void copy_registers (registers *dptr, registers *sptr, int n);
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/* Copy the stored registers from the stack. Put the register contents
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of thread thread_id in the struct reg. */
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static void copy_registers_from_stack (int thread_id, registers *reg);
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/* Copy the registers to the stack. Put the register contents of thread
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thread_id from struct reg to the stack. */
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static void copy_registers_to_stack (int thread_id, registers *reg);
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/* Write a value to a specified register regno in the register image
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of the current thread. */
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static int write_register (int regno, char *val);
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/* Write a value to a specified register in the stack of a thread other
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than the current thread. */
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static int write_stack_register(int thread_id, int regno, char *valptr);
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/* Read a value from a specified register in the register image. Returns the
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status of the read operation. The register value is returned in valptr. */
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static int read_register (char regno, unsigned int *valptr);
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/* Serial port, reads one character. ETRAX 100 specific. from debugport.c */
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int getDebugChar (void);
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@ -278,42 +238,6 @@ void putDebugChar (int val);
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void enableDebugIRQ (void);
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/* Returns the integer equivalent of a hexadecimal character. */
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static int hex (char ch);
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/* Convert the memory, pointed to by mem into hexadecimal representation.
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Put the result in buf, and return a pointer to the last character
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in buf (null). */
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static char *mem2hex (char *buf, unsigned char *mem, int count);
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/* Convert the array, in hexadecimal representation, pointed to by buf into
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binary representation. Put the result in mem, and return a pointer to
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the character after the last byte written. */
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static unsigned char *hex2mem (unsigned char *mem, char *buf, int count);
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/* Put the content of the array, in binary representation, pointed to by buf
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into memory pointed to by mem, and return a pointer to
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the character after the last byte written. */
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static unsigned char *bin2mem (unsigned char *mem, unsigned char *buf, int count);
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/* Await the sequence $<data>#<checksum> and store <data> in the array buffer
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returned. */
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static void getpacket (char *buffer);
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/* Send $<data>#<checksum> from the <data> in the array buffer. */
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static void putpacket (char *buffer);
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/* Build and send a response packet in order to inform the host the
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stub is stopped. */
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static void stub_is_stopped (int sigval);
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/* All expected commands are sent from remote.c. Send a response according
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to the description in remote.c. */
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static void handle_exception (int sigval);
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/* Performs a complete re-start from scratch. ETRAX specific. */
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static void kill_restart (void);
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/******************** Prototypes for global functions. ***********************/
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/* The string str is prepended with the GDB printout token and sent. */
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@ -500,164 +424,6 @@ gdb_cris_strtol (const char *s, char **endptr, int base)
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return x;
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}
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/********************************* Register image ****************************/
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/* Copy the content of a register image into another. The size n is
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the size of the register image. Due to struct assignment generation of
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memcpy in libc. */
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static void
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copy_registers (registers *dptr, registers *sptr, int n)
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{
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unsigned char *dreg;
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unsigned char *sreg;
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for (dreg = (unsigned char*)dptr, sreg = (unsigned char*)sptr; n > 0; n--)
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*dreg++ = *sreg++;
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}
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#ifdef PROCESS_SUPPORT
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/* Copy the stored registers from the stack. Put the register contents
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of thread thread_id in the struct reg. */
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static void
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copy_registers_from_stack (int thread_id, registers *regptr)
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{
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int j;
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stack_registers *s = (stack_registers *)stack_list[thread_id];
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unsigned int *d = (unsigned int *)regptr;
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for (j = 13; j >= 0; j--)
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*d++ = s->r[j];
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regptr->sp = (unsigned int)stack_list[thread_id];
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regptr->pc = s->pc;
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regptr->dccr = s->dccr;
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regptr->srp = s->srp;
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}
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/* Copy the registers to the stack. Put the register contents of thread
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thread_id from struct reg to the stack. */
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static void
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copy_registers_to_stack (int thread_id, registers *regptr)
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{
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int i;
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stack_registers *d = (stack_registers *)stack_list[thread_id];
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unsigned int *s = (unsigned int *)regptr;
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for (i = 0; i < 14; i++) {
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d->r[i] = *s++;
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}
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d->pc = regptr->pc;
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d->dccr = regptr->dccr;
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d->srp = regptr->srp;
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}
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#endif
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/* Write a value to a specified register in the register image of the current
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thread. Returns status code SUCCESS, E02 or E05. */
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static int
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write_register (int regno, char *val)
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{
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int status = SUCCESS;
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registers *current_reg = ®
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if (regno >= R0 && regno <= PC) {
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/* 32-bit register with simple offset. */
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hex2mem ((unsigned char *)current_reg + regno * sizeof(unsigned int),
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val, sizeof(unsigned int));
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}
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else if (regno == P0 || regno == VR || regno == P4 || regno == P8) {
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/* Do not support read-only registers. */
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status = E02;
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}
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else if (regno == CCR) {
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/* 16 bit register with complex offset. (P4 is read-only, P6 is not implemented,
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and P7 (MOF) is 32 bits in ETRAX 100LX. */
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hex2mem ((unsigned char *)&(current_reg->ccr) + (regno-CCR) * sizeof(unsigned short),
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val, sizeof(unsigned short));
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}
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else if (regno >= MOF && regno <= USP) {
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/* 32 bit register with complex offset. (P8 has been taken care of.) */
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hex2mem ((unsigned char *)&(current_reg->ibr) + (regno-IBR) * sizeof(unsigned int),
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val, sizeof(unsigned int));
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}
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else {
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/* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
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status = E05;
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}
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return status;
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}
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#ifdef PROCESS_SUPPORT
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/* Write a value to a specified register in the stack of a thread other
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than the current thread. Returns status code SUCCESS or E07. */
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static int
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write_stack_register (int thread_id, int regno, char *valptr)
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{
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int status = SUCCESS;
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stack_registers *d = (stack_registers *)stack_list[thread_id];
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unsigned int val;
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hex2mem ((unsigned char *)&val, valptr, sizeof(unsigned int));
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if (regno >= R0 && regno < SP) {
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d->r[regno] = val;
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}
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else if (regno == SP) {
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stack_list[thread_id] = val;
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}
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else if (regno == PC) {
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d->pc = val;
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}
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else if (regno == SRP) {
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d->srp = val;
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}
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else if (regno == DCCR) {
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d->dccr = val;
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}
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else {
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/* Do not support registers in the current thread. */
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status = E07;
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}
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return status;
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}
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#endif
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/* Read a value from a specified register in the register image. Returns the
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value in the register or -1 for non-implemented registers.
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Should check consistency_status after a call which may be E05 after changes
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in the implementation. */
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static int
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read_register (char regno, unsigned int *valptr)
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{
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registers *current_reg = ®
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if (regno >= R0 && regno <= PC) {
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/* 32-bit register with simple offset. */
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*valptr = *(unsigned int *)((char *)current_reg + regno * sizeof(unsigned int));
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return SUCCESS;
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}
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else if (regno == P0 || regno == VR) {
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/* 8 bit register with complex offset. */
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*valptr = (unsigned int)(*(unsigned char *)
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((char *)&(current_reg->p0) + (regno-P0) * sizeof(char)));
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return SUCCESS;
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}
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else if (regno == P4 || regno == CCR) {
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/* 16 bit register with complex offset. */
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*valptr = (unsigned int)(*(unsigned short *)
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((char *)&(current_reg->p4) + (regno-P4) * sizeof(unsigned short)));
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return SUCCESS;
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}
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else if (regno >= MOF && regno <= USP) {
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/* 32 bit register with complex offset. */
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*valptr = *(unsigned int *)((char *)&(current_reg->p8)
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+ (regno-P8) * sizeof(unsigned int));
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return SUCCESS;
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}
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else {
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/* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
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consistency_status = E05;
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return E05;
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}
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}
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/********************************** Packet I/O ******************************/
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/* Returns the integer equivalent of a hexadecimal character. */
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static int
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@ -843,6 +609,164 @@ putDebugString (const unsigned char *str, int length)
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putpacket(remcomOutBuffer);
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}
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/********************************* Register image ****************************/
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/* Copy the content of a register image into another. The size n is
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the size of the register image. Due to struct assignment generation of
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memcpy in libc. */
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static void
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copy_registers (registers *dptr, registers *sptr, int n)
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{
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unsigned char *dreg;
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unsigned char *sreg;
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for (dreg = (unsigned char*)dptr, sreg = (unsigned char*)sptr; n > 0; n--)
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*dreg++ = *sreg++;
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}
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#ifdef PROCESS_SUPPORT
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/* Copy the stored registers from the stack. Put the register contents
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of thread thread_id in the struct reg. */
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static void
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copy_registers_from_stack (int thread_id, registers *regptr)
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{
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int j;
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stack_registers *s = (stack_registers *)stack_list[thread_id];
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unsigned int *d = (unsigned int *)regptr;
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for (j = 13; j >= 0; j--)
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*d++ = s->r[j];
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regptr->sp = (unsigned int)stack_list[thread_id];
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regptr->pc = s->pc;
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regptr->dccr = s->dccr;
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regptr->srp = s->srp;
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}
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/* Copy the registers to the stack. Put the register contents of thread
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thread_id from struct reg to the stack. */
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static void
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copy_registers_to_stack (int thread_id, registers *regptr)
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{
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int i;
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stack_registers *d = (stack_registers *)stack_list[thread_id];
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unsigned int *s = (unsigned int *)regptr;
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for (i = 0; i < 14; i++) {
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d->r[i] = *s++;
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}
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d->pc = regptr->pc;
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d->dccr = regptr->dccr;
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d->srp = regptr->srp;
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}
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#endif
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/* Write a value to a specified register in the register image of the current
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thread. Returns status code SUCCESS, E02 or E05. */
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static int
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write_register (int regno, char *val)
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{
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int status = SUCCESS;
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registers *current_reg = ®
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if (regno >= R0 && regno <= PC) {
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/* 32-bit register with simple offset. */
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hex2mem ((unsigned char *)current_reg + regno * sizeof(unsigned int),
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val, sizeof(unsigned int));
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}
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else if (regno == P0 || regno == VR || regno == P4 || regno == P8) {
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/* Do not support read-only registers. */
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status = E02;
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}
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else if (regno == CCR) {
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/* 16 bit register with complex offset. (P4 is read-only, P6 is not implemented,
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and P7 (MOF) is 32 bits in ETRAX 100LX. */
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hex2mem ((unsigned char *)&(current_reg->ccr) + (regno-CCR) * sizeof(unsigned short),
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val, sizeof(unsigned short));
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}
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else if (regno >= MOF && regno <= USP) {
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/* 32 bit register with complex offset. (P8 has been taken care of.) */
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hex2mem ((unsigned char *)&(current_reg->ibr) + (regno-IBR) * sizeof(unsigned int),
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val, sizeof(unsigned int));
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}
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else {
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/* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
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status = E05;
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}
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return status;
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}
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#ifdef PROCESS_SUPPORT
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/* Write a value to a specified register in the stack of a thread other
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than the current thread. Returns status code SUCCESS or E07. */
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static int
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write_stack_register (int thread_id, int regno, char *valptr)
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{
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int status = SUCCESS;
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stack_registers *d = (stack_registers *)stack_list[thread_id];
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unsigned int val;
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hex2mem ((unsigned char *)&val, valptr, sizeof(unsigned int));
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if (regno >= R0 && regno < SP) {
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d->r[regno] = val;
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}
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else if (regno == SP) {
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stack_list[thread_id] = val;
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}
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else if (regno == PC) {
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d->pc = val;
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}
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else if (regno == SRP) {
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d->srp = val;
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}
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else if (regno == DCCR) {
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d->dccr = val;
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}
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else {
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/* Do not support registers in the current thread. */
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status = E07;
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}
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return status;
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}
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#endif
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/* Read a value from a specified register in the register image. Returns the
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value in the register or -1 for non-implemented registers.
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Should check consistency_status after a call which may be E05 after changes
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in the implementation. */
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static int
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read_register (char regno, unsigned int *valptr)
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{
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registers *current_reg = ®
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if (regno >= R0 && regno <= PC) {
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/* 32-bit register with simple offset. */
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*valptr = *(unsigned int *)((char *)current_reg + regno * sizeof(unsigned int));
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return SUCCESS;
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}
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else if (regno == P0 || regno == VR) {
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/* 8 bit register with complex offset. */
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*valptr = (unsigned int)(*(unsigned char *)
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((char *)&(current_reg->p0) + (regno-P0) * sizeof(char)));
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return SUCCESS;
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}
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else if (regno == P4 || regno == CCR) {
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/* 16 bit register with complex offset. */
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*valptr = (unsigned int)(*(unsigned short *)
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((char *)&(current_reg->p4) + (regno-P4) * sizeof(unsigned short)));
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return SUCCESS;
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}
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else if (regno >= MOF && regno <= USP) {
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/* 32 bit register with complex offset. */
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*valptr = *(unsigned int *)((char *)&(current_reg->p8)
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+ (regno-P8) * sizeof(unsigned int));
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return SUCCESS;
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}
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else {
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/* Do not support nonexisting or unimplemented registers (P2, P3, and P6). */
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consistency_status = E05;
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return E05;
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}
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}
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/********************************** Handle exceptions ************************/
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/* Build and send a response packet in order to inform the host the
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stub is stopped. TAAn...:r...;n...:r...;n...:r...;
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@ -916,6 +840,13 @@ stub_is_stopped(int sigval)
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putpacket (remcomOutBuffer);
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}
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/* Performs a complete re-start from scratch. */
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static void
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kill_restart (void)
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{
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machine_restart("");
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}
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/* All expected commands are sent from remote.c. Send a response according
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to the description in remote.c. */
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static void
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@ -1252,13 +1183,6 @@ handle_exception (int sigval)
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}
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}
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/* Performs a complete re-start from scratch. */
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static void
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kill_restart ()
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{
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machine_restart("");
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}
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/********************************** Breakpoint *******************************/
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/* The hook for both a static (compiled) and a dynamic breakpoint set by GDB.
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An internal stack is used by the stub. The register image of the caller is
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