74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
//---
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// gint:gdb - GDB remote serial protocol
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//---
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#ifndef GINT_GDB
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#define GINT_GDB
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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/* Error codes for GDB functions */
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enum {
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GDB_NO_INTERFACE = -1,
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GDB_ALREADY_STARTED = -2,
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GDB_USB_ERROR = -3,
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};
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/* gdb_cpu_state_t: State of the CPU when breaking
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This struct keep the same register indices as those declared by GDB to allow
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easy R/W without needing a "translation" table.
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See : https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=gdb/sh-tdep.c;
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h=c402961b80a0b4589243023ea5362d43f644a9ec;hb=4f3e26ac6ee31f7bc4b04abd
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8bdb944e7f1fc5d2#l327
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*/
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// TODO : Should we expose r*b*, ssr, spc ? are they double-saved when breaking
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// inside an interrupt handler ?
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typedef struct {
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union {
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struct {
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uint32_t r0;
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uint32_t r1;
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uint32_t r2;
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uint32_t r3;
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uint32_t r4;
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uint32_t r5;
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uint32_t r6;
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uint32_t r7;
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uint32_t r8;
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uint32_t r9;
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uint32_t r10;
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uint32_t r11;
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uint32_t r12;
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uint32_t r13;
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uint32_t r14;
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uint32_t r15;
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uint32_t pc;
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uint32_t pr;
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uint32_t gbr;
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uint32_t vbr;
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uint32_t mach;
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uint32_t macl;
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uint32_t sr;
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} reg;
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uint32_t regs[23];
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};
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} gdb_cpu_state_t;
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/* gdb_start(): Start the GDB remote serial protocol server
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This function will start the GDB remote serial protocol implementation and
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block until the program is resumed from the connected debugger.
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It currently only supports USB communication and will fail if USB is already
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in use.*/
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int gdb_start(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GINT_GDB */
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