Pass qemu gdbstub code.
This commit is contained in:
Colin
parent
8eaf2c0b7b
commit
05f7a713a3
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@ -54,6 +54,8 @@
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"stdexcept": "cpp",
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"streambuf": "cpp",
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"typeinfo": "cpp",
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"internals.h": "c"
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"internals.h": "c",
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"stdint.h": "c",
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"ctype.h": "c"
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}
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}
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@ -56,6 +56,7 @@ link_directories(${GLIB_LIBRARY_DIRS}) # 添加链接库
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file(GLOB UTILS_SRC
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${CMAKE_CURRENT_SOURCE_DIR}/utils/*.cpp
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${CMAKE_CURRENT_SOURCE_DIR}/*.c
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${CMAKE_CURRENT_SOURCE_DIR}/utils/*.c)
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set_source_files_properties(${UTILS_SRC} PROPERTIES LANGUAGE CXX)
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@ -11,6 +11,7 @@
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// #include "qemu/queue.h"
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// #include "exec/vaddr.h"
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// #include "exec/memattrs.h"
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#include <stdint.h>
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typedef struct CPUBreakpoint {
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uintptr_t pc;
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@ -1,28 +1,30 @@
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#ifndef GDBSTUB_COMMANDS_H
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#define GDBSTUB_COMMANDS_H
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#include "enums.h"
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typedef void (*GdbCmdHandler)(GArray *params, void *user_ctx);
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typedef enum GDBThreadIdKind {
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GDB_ONE_THREAD = 0,
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GDB_ALL_THREADS, /* One process, all threads */
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GDB_ALL_PROCESSES,
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GDB_READ_THREAD_ERR
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GDB_ONE_THREAD = 0,
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GDB_ALL_THREADS, /* One process, all threads */
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GDB_ALL_PROCESSES,
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GDB_READ_THREAD_ERR
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} GDBThreadIdKind;
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typedef union GdbCmdVariant {
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const char *data;
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uint8_t opcode;
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unsigned long val_ul;
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unsigned long long val_ull;
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struct {
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GDBThreadIdKind kind;
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uint32_t pid;
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uint32_t tid;
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} thread_id;
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const char *data;
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uint8_t opcode;
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unsigned long val_ul;
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unsigned long long val_ull;
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struct {
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GDBThreadIdKind kind;
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uint32_t pid;
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uint32_t tid;
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} thread_id;
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} GdbCmdVariant;
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#define gdb_get_cmd_param(p, i) (&g_array_index(p, GdbCmdVariant, i))
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#define gdb_get_cmd_param(p, i) (&g_array_index(p, GdbCmdVariant, i))
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/**
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* typedef GdbCmdParseEntry - gdb command parser
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@ -58,12 +60,12 @@ typedef union GdbCmdVariant {
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* @need_cpu_context: Pass current CPU context to command handler via user_ctx.
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*/
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typedef struct GdbCmdParseEntry {
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GdbCmdHandler handler;
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const char *cmd;
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bool cmd_startswith;
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const char *schema;
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bool allow_stop_reply;
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bool need_cpu_context;
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GdbCmdHandler handler;
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const char *cmd;
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bool cmd_startswith;
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const char *schema;
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bool allow_stop_reply;
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bool need_cpu_context;
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} GdbCmdParseEntry;
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/**
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@ -163,7 +163,7 @@ struct CPUClass {
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// void (*parse_features)(const char *tname, char *str, Error **errp);
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int (*memory_rw_debug)(CPUState *cpu, vaddr addr, uint8_t *buf, size_t len, bool is_write);
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void (*dump_state)(CPUState *cpu, FILE *, int flags);
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// void (*dump_state)(CPUState *cpu, FILE *, int flags);
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// void (*query_cpu_fast)(CPUState *cpu, CpuInfoFast *value);
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int64_t (*get_arch_id)(CPUState *cpu);
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void (*set_pc)(CPUState *cpu, vaddr value);
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@ -600,11 +600,6 @@ struct CPUState {
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typedef CPUState CPUTailQ;
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extern CPUTailQ cpus_queue;
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#define first_cpu QTAILQ_FIRST_RCU(&cpus_queue)
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#define CPU_NEXT(cpu) QTAILQ_NEXT_RCU(cpu, node)
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#define CPU_FOREACH(cpu) QTAILQ_FOREACH_RCU(cpu, &cpus_queue, node)
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#define CPU_FOREACH_SAFE(cpu, next_cpu) QTAILQ_FOREACH_SAFE_RCU(cpu, &cpus_queue, node, next_cpu)
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extern __thread CPUState *current_cpu;
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/**
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@ -691,7 +686,7 @@ enum CPUDumpFlags {
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*
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* Dumps CPU state.
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*/
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void cpu_dump_state(CPUState *cpu, FILE *f, int flags);
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// void cpu_dump_state(CPUState *cpu, FILE *f, int flags);
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/**
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* cpu_get_phys_page_attrs_debug:
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@ -1133,13 +1128,13 @@ void qemu_process_cpu_events(CPUState *cpu);
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/* $(top_srcdir)/cpu.c */
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// void cpu_class_init_props(DeviceClass *dc);
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void cpu_exec_class_post_init(CPUClass *cc);
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void cpu_exec_initfn(CPUState *cpu);
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void cpu_vmstate_register(CPUState *cpu);
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void cpu_vmstate_unregister(CPUState *cpu);
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// void cpu_exec_class_post_init(CPUClass *cc);
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// void cpu_exec_initfn(CPUState *cpu);
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// void cpu_vmstate_register(CPUState *cpu);
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// void cpu_vmstate_unregister(CPUState *cpu);
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// bool cpu_exec_realizefn(CPUState *cpu, Error **errp);
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void cpu_exec_unrealizefn(CPUState *cpu);
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void cpu_exec_reset_hold(CPUState *cpu);
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// void cpu_exec_unrealizefn(CPUState *cpu);
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// void cpu_exec_reset_hold(CPUState *cpu);
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// extern const VMStateDescription vmstate_cpu_common;
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@ -0,0 +1,48 @@
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#include "enums.h"
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#include <iostream>
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int qemu_strtoul(const char *nptr, const char **endptr, int base, unsigned long *result) {
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char *ep;
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assert((unsigned)base <= 36 && base != 1);
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if (!nptr) {
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*result = 0;
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if (endptr) {
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*endptr = nptr;
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}
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return -EINVAL;
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}
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errno = 0;
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*result = strtoul(nptr, &ep, base);
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/* Windows returns 1 for negative out-of-range values. */
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if (errno == ERANGE) {
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*result = -1;
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}
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return 0;
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}
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int qemu_strtou64(const char *nptr, const char **endptr, int base, uint64_t *result) {
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char *ep;
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assert((unsigned)base <= 36 && base != 1);
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if (!nptr) {
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*result = 0;
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if (endptr) {
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*endptr = nptr;
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}
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return -EINVAL;
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}
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/* This assumes uint64_t is unsigned long long TODO relax */
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// QEMU_BUILD_BUG_ON(sizeof(uint64_t) != sizeof(unsigned long long));
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errno = 0;
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*result = strtoull(nptr, &ep, base);
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/* Windows returns 1 for negative out-of-range values. */
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if (errno == ERANGE) {
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*result = -1;
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}
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return 0;
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}
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@ -11,17 +11,51 @@
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#define DEFAULT_GDBSTUB_PORT "1234"
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#include <assert.h>
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#include <ctype.h>
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#include <glib.h>
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#include <stdint.h>
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typedef uintptr_t vaddr;
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typedef uint64_t hwaddr;
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typedef int Error;
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#define MMU_ACCESS_COUNT 16
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/* GDB breakpoint/watchpoint types */
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#define GDB_BREAKPOINT_SW 0
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#define GDB_BREAKPOINT_HW 1
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#define GDB_WATCHPOINT_WRITE 2
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#define GDB_WATCHPOINT_READ 3
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#define GDB_WATCHPOINT_ACCESS 4
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#define GDB_BREAKPOINT_SW 0
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#define GDB_BREAKPOINT_HW 1
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#define GDB_WATCHPOINT_WRITE 2
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#define GDB_WATCHPOINT_READ 3
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#define GDB_WATCHPOINT_ACCESS 4
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typedef enum RunState {
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RUN_STATE_DEBUG,
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RUN_STATE_INMIGRATE,
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RUN_STATE_INTERNAL_ERROR,
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RUN_STATE_IO_ERROR,
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RUN_STATE_PAUSED,
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RUN_STATE_POSTMIGRATE,
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RUN_STATE_PRELAUNCH,
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RUN_STATE_FINISH_MIGRATE,
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RUN_STATE_RESTORE_VM,
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RUN_STATE_RUNNING,
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RUN_STATE_SAVE_VM,
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RUN_STATE_SHUTDOWN,
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RUN_STATE_SUSPENDED,
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RUN_STATE_WATCHDOG,
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RUN_STATE_GUEST_PANICKED,
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RUN_STATE_COLO,
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RUN_STATE__MAX,
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} RunState;
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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#define isxdigit(c) isctype((c), _ISxdigit)
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int qemu_strtoul(const char *nptr, const char **endptr, int base, unsigned long *result);
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int qemu_strtou64(const char *nptr, const char **endptr, int base, uint64_t *result);
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#endif /* GDBSTUB_ENUMS_H */
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3665
gdbstub/gdbstub.c
3665
gdbstub/gdbstub.c
File diff suppressed because it is too large
Load Diff
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@ -9,7 +9,8 @@
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#ifndef GDBSTUB_INTERNALS_H
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#define GDBSTUB_INTERNALS_H
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#include "exec/cpu-common.h"
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// #include "exec/cpu-common.h"
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#include "cpu.h"
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/*
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* Most "large" transfers (e.g. memory reads, feature XML
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@ -38,58 +39,58 @@
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*/
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enum {
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GDB_SIGNAL_0 = 0,
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GDB_SIGNAL_INT = 2,
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GDB_SIGNAL_QUIT = 3,
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GDB_SIGNAL_TRAP = 5,
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GDB_SIGNAL_ABRT = 6,
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GDB_SIGNAL_ALRM = 14,
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GDB_SIGNAL_STOP = 17,
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GDB_SIGNAL_IO = 23,
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GDB_SIGNAL_XCPU = 24,
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GDB_SIGNAL_UNKNOWN = 143
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GDB_SIGNAL_0 = 0,
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GDB_SIGNAL_INT = 2,
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GDB_SIGNAL_QUIT = 3,
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GDB_SIGNAL_TRAP = 5,
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GDB_SIGNAL_ABRT = 6,
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GDB_SIGNAL_ALRM = 14,
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GDB_SIGNAL_STOP = 17,
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GDB_SIGNAL_IO = 23,
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GDB_SIGNAL_XCPU = 24,
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GDB_SIGNAL_UNKNOWN = 143
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};
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typedef struct GDBProcess {
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uint32_t pid;
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bool attached;
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char *target_xml;
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uint32_t pid;
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bool attached;
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char *target_xml;
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} GDBProcess;
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enum RSState {
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RS_INACTIVE,
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RS_IDLE,
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RS_GETLINE,
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RS_GETLINE_ESC,
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RS_GETLINE_RLE,
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RS_CHKSUM1,
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RS_CHKSUM2,
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RS_INACTIVE,
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RS_IDLE,
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RS_GETLINE,
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RS_GETLINE_ESC,
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RS_GETLINE_RLE,
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RS_CHKSUM1,
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RS_CHKSUM2,
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};
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typedef struct GDBState {
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bool init; /* have we been initialised? */
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CPUState *c_cpu; /* current CPU for step/continue ops */
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CPUState *g_cpu; /* current CPU for other ops */
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CPUState *query_cpu; /* for q{f|s}ThreadInfo */
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enum RSState state; /* parsing state */
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char line_buf[MAX_PACKET_LENGTH];
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int line_buf_index;
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int line_sum; /* running checksum */
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int line_csum; /* checksum at the end of the packet */
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GByteArray *last_packet;
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int signal;
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bool multiprocess;
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GDBProcess *processes;
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int process_num;
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GString *str_buf;
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GByteArray *mem_buf;
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int sstep_flags;
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int supported_sstep_flags;
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/*
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* Whether we are allowed to send a stop reply packet at this moment.
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* Must be set off after sending the stop reply itself.
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*/
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bool allow_stop_reply;
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bool init; /* have we been initialised? */
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CPUState *c_cpu; /* current CPU for step/continue ops */
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CPUState *g_cpu; /* current CPU for other ops */
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CPUState *query_cpu; /* for q{f|s}ThreadInfo */
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enum RSState state; /* parsing state */
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char line_buf[MAX_PACKET_LENGTH];
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int line_buf_index;
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int line_sum; /* running checksum */
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int line_csum; /* checksum at the end of the packet */
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GByteArray *last_packet;
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int signal;
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bool multiprocess;
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GDBProcess *processes;
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int process_num;
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GString *str_buf;
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GByteArray *mem_buf;
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int sstep_flags;
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int supported_sstep_flags;
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/*
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* Whether we are allowed to send a stop reply packet at this moment.
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* Must be set off after sending the stop reply itself.
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*/
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bool allow_stop_reply;
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} GDBState;
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/* lives in main gdbstub.c */
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@ -99,26 +100,24 @@ extern GDBState gdbserver_state;
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* Inline utility function, convert from int to hex and back
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*/
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static inline int fromhex(int v)
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{
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if (v >= '0' && v <= '9') {
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return v - '0';
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} else if (v >= 'A' && v <= 'F') {
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return v - 'A' + 10;
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} else if (v >= 'a' && v <= 'f') {
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return v - 'a' + 10;
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} else {
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return 0;
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}
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static inline int fromhex(int v) {
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if (v >= '0' && v <= '9') {
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return v - '0';
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} else if (v >= 'A' && v <= 'F') {
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return v - 'A' + 10;
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} else if (v >= 'a' && v <= 'f') {
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return v - 'a' + 10;
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} else {
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return 0;
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}
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}
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static inline int tohex(int v)
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{
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if (v < 10) {
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return v + '0';
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} else {
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return v - 10 + 'a';
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}
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static inline int tohex(int v) {
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if (v < 10) {
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return v + '0';
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} else {
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return v - 10 + 'a';
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}
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}
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/*
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@ -153,14 +152,14 @@ CPUState *gdb_first_attached_cpu(void);
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void gdb_append_thread_id(CPUState *cpu, GString *buf);
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int gdb_get_cpu_index(CPUState *cpu);
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unsigned int gdb_get_max_cpus(void); /* both */
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bool gdb_can_reverse(void); /* system emulation, stub for user */
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int gdb_target_sigtrap(void); /* user */
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bool gdb_can_reverse(void); /* system emulation, stub for user */
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// int gdb_target_sigtrap(void); /* user */
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void gdb_create_default_process(GDBState *s);
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/* signal mapping, common for system, specialised for user-mode */
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int gdb_signal_to_target(int sig);
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int gdb_target_signal_to_gdb(int sig);
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// int gdb_target_signal_to_gdb(int sig);
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int gdb_get_char(void); /* user only */
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@ -174,29 +173,23 @@ void gdb_continue(void);
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*/
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int gdb_continue_partial(char *newstates);
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/*
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* Helpers with separate system and user implementations
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*/
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void gdb_put_buffer(const uint8_t *buf, int len);
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/*
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* Command handlers - either specialised or system or user only
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*/
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void gdb_init_gdbserver_state(void);
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void gdb_handle_query_rcmd(GArray *params, void *ctx); /* system */
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void gdb_handle_query_offsets(GArray *params, void *user_ctx); /* user */
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void gdb_handle_query_xfer_auxv(GArray *params, void *user_ctx); /*user */
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void gdb_handle_query_xfer_siginfo(GArray *params, void *user_ctx); /*user */
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void gdb_handle_v_file_open(GArray *params, void *user_ctx); /* user */
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void gdb_handle_v_file_close(GArray *params, void *user_ctx); /* user */
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void gdb_handle_v_file_pread(GArray *params, void *user_ctx); /* user */
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void gdb_handle_v_file_readlink(GArray *params, void *user_ctx); /* user */
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void gdb_handle_query_xfer_exec_file(GArray *params, void *user_ctx); /* user */
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void gdb_handle_set_catch_syscalls(GArray *params, void *user_ctx); /* user */
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void gdb_handle_query_supported_user(const char *gdb_supported); /* user */
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bool gdb_handle_set_thread_user(uint32_t pid, uint32_t tid); /* user */
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bool gdb_handle_detach_user(uint32_t pid); /* user */
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||||
// void gdb_handle_query_xfer_auxv(GArray *params, void *user_ctx); /*user */
|
||||
// void gdb_handle_query_xfer_siginfo(GArray *params, void *user_ctx); /*user */
|
||||
// void gdb_handle_v_file_open(GArray *params, void *user_ctx); /* user */
|
||||
// void gdb_handle_v_file_close(GArray *params, void *user_ctx); /* user */
|
||||
// void gdb_handle_v_file_pread(GArray *params, void *user_ctx); /* user */
|
||||
// void gdb_handle_v_file_readlink(GArray *params, void *user_ctx); /* user */
|
||||
// void gdb_handle_query_xfer_exec_file(GArray *params, void *user_ctx); /* user */
|
||||
// void gdb_handle_set_catch_syscalls(GArray *params, void *user_ctx); /* user */
|
||||
// void gdb_handle_query_supported_user(const char *gdb_supported); /* user */
|
||||
// bool gdb_handle_set_thread_user(uint32_t pid, uint32_t tid); /* user */
|
||||
// bool gdb_handle_detach_user(uint32_t pid); /* user */
|
||||
|
||||
void gdb_handle_query_attached(GArray *params, void *ctx); /* both */
|
||||
|
||||
|
|
@ -206,21 +199,40 @@ void gdb_handle_set_qemu_phy_mem_mode(GArray *params, void *ctx);
|
|||
|
||||
/* sycall handling */
|
||||
void gdb_handle_file_io(GArray *params, void *user_ctx);
|
||||
bool gdb_handled_syscall(void);
|
||||
void gdb_disable_syscalls(void);
|
||||
void gdb_syscall_reset(void);
|
||||
|
||||
/* user/system specific syscall handling */
|
||||
void gdb_syscall_handling(const char *syscall_packet);
|
||||
|
||||
/*
|
||||
* Break/Watch point support - there is an implementation for system
|
||||
* and user mode.
|
||||
*/
|
||||
|
||||
// TODO
|
||||
bool runstate_is_running();
|
||||
void vm_stop(RunState rs);
|
||||
void cpu_synchronize_state(CPUState *cpu);
|
||||
void gdb_exit(int i);
|
||||
void gdb_qemu_exit(int i);
|
||||
|
||||
CPUState *get_cpu();
|
||||
CPUState *cpu_next(CPUState *cpu);
|
||||
void gdb_breakpoint_remove_all(CPUState *cs);
|
||||
bool gdb_supports_guest_debug(void);
|
||||
int gdb_breakpoint_insert(CPUState *cs, int type, vaddr addr, vaddr len);
|
||||
int gdb_breakpoint_remove(CPUState *cs, int type, vaddr addr, vaddr len);
|
||||
void gdb_breakpoint_remove_all(CPUState *cs);
|
||||
|
||||
void gdb_put_buffer(const uint8_t *buf, int len);
|
||||
|
||||
bool gdbserver_start(const char *device, Error **errp);
|
||||
|
||||
static inline void cpu_physical_memory_write(hwaddr addr, const void *buf, hwaddr len);
|
||||
static inline void cpu_physical_memory_read(hwaddr addr, const void *buf, hwaddr len);
|
||||
|
||||
bool runstate_needs_reset(void);
|
||||
void vm_start();
|
||||
bool vm_prepare_start(bool step_requested);
|
||||
void qemu_clock_enable();
|
||||
|
||||
#define CPU_FOREACH(cpu) for (auto c = get_cpu(); false;)
|
||||
|
||||
/**
|
||||
* gdb_target_memory_rw_debug() - handle debug access to memory
|
||||
|
|
@ -234,7 +246,6 @@ void gdb_breakpoint_remove_all(CPUState *cs);
|
|||
* in. For system guests we can switch the interpretation of the
|
||||
* address to a physical address.
|
||||
*/
|
||||
int gdb_target_memory_rw_debug(CPUState *cs, hwaddr addr,
|
||||
uint8_t *buf, int len, bool is_write);
|
||||
int gdb_target_memory_rw_debug(CPUState *cs, hwaddr addr, uint8_t *buf, int len, bool is_write);
|
||||
|
||||
#endif /* GDBSTUB_INTERNALS_H */
|
||||
|
|
|
|||
|
|
@ -0,0 +1,509 @@
|
|||
#include "gdbstub.h"
|
||||
|
||||
const GDBFeature gdb_static_features[] = {
|
||||
{
|
||||
"riscv-64bit-cpu.xml",
|
||||
"<?xml version=\"1.0\"?>\n"
|
||||
"<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc.\n"
|
||||
"\n"
|
||||
" Copying and distribution of this file, with or without modification,\n"
|
||||
" are permitted in any medium without royalty provided the copyright\n"
|
||||
" notice and this notice are preserved. -->\n"
|
||||
"\n"
|
||||
"<!DOCTYPE feature SYSTEM \"gdb-target.dtd\">\n"
|
||||
"<feature name=\"org.gnu.gdb.riscv.cpu\">\n"
|
||||
" <reg name=\"zero\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"ra\" bitsize=\"64\" type=\"code_ptr\"/>\n"
|
||||
" <reg name=\"sp\" bitsize=\"64\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"gp\" bitsize=\"64\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"tp\" bitsize=\"64\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"t0\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"t1\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"t2\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"fp\" bitsize=\"64\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"s1\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a0\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a1\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a2\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a3\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a4\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a5\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a6\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"a7\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s2\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s3\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s4\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s5\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s6\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s7\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s8\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s9\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s10\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"s11\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"t3\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"t4\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"t5\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"t6\" bitsize=\"64\" type=\"int\"/>\n"
|
||||
" <reg name=\"pc\" bitsize=\"64\" type=\"code_ptr\"/>\n"
|
||||
"</feature>\n",
|
||||
"org.gnu.gdb.riscv.cpu",
|
||||
(const char * const []) {
|
||||
[0] =
|
||||
"zero",
|
||||
[1] =
|
||||
"ra",
|
||||
[2] =
|
||||
"sp",
|
||||
[3] =
|
||||
"gp",
|
||||
[4] =
|
||||
"tp",
|
||||
[5] =
|
||||
"t0",
|
||||
[6] =
|
||||
"t1",
|
||||
[7] =
|
||||
"t2",
|
||||
[8] =
|
||||
"fp",
|
||||
[9] =
|
||||
"s1",
|
||||
[10] =
|
||||
"a0",
|
||||
[11] =
|
||||
"a1",
|
||||
[12] =
|
||||
"a2",
|
||||
[13] =
|
||||
"a3",
|
||||
[14] =
|
||||
"a4",
|
||||
[15] =
|
||||
"a5",
|
||||
[16] =
|
||||
"a6",
|
||||
[17] =
|
||||
"a7",
|
||||
[18] =
|
||||
"s2",
|
||||
[19] =
|
||||
"s3",
|
||||
[20] =
|
||||
"s4",
|
||||
[21] =
|
||||
"s5",
|
||||
[22] =
|
||||
"s6",
|
||||
[23] =
|
||||
"s7",
|
||||
[24] =
|
||||
"s8",
|
||||
[25] =
|
||||
"s9",
|
||||
[26] =
|
||||
"s10",
|
||||
[27] =
|
||||
"s11",
|
||||
[28] =
|
||||
"t3",
|
||||
[29] =
|
||||
"t4",
|
||||
[30] =
|
||||
"t5",
|
||||
[31] =
|
||||
"t6",
|
||||
[32] =
|
||||
"pc",
|
||||
},
|
||||
33,
|
||||
},
|
||||
{
|
||||
"riscv-32bit-fpu.xml",
|
||||
"<?xml version=\"1.0\"?>\n"
|
||||
"<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc.\n"
|
||||
"\n"
|
||||
" Copying and distribution of this file, with or without modification,\n"
|
||||
" are permitted in any medium without royalty provided the copyright\n"
|
||||
" notice and this notice are preserved. -->\n"
|
||||
"\n"
|
||||
"<!DOCTYPE feature SYSTEM \"gdb-target.dtd\">\n"
|
||||
"<feature name=\"org.gnu.gdb.riscv.fpu\">\n"
|
||||
" <reg name=\"ft0\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft1\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft2\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft3\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft4\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft5\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft6\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft7\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs0\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs1\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa0\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa1\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa2\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa3\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa4\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa5\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa6\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fa7\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs2\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs3\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs4\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs5\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs6\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs7\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs8\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs9\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs10\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"fs11\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft8\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft9\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft10\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
" <reg name=\"ft11\" bitsize=\"32\" type=\"ieee_single\"/>\n"
|
||||
"</feature>\n",
|
||||
"org.gnu.gdb.riscv.fpu",
|
||||
(const char * const []) {
|
||||
[0] =
|
||||
"ft0",
|
||||
[1] =
|
||||
"ft1",
|
||||
[2] =
|
||||
"ft2",
|
||||
[3] =
|
||||
"ft3",
|
||||
[4] =
|
||||
"ft4",
|
||||
[5] =
|
||||
"ft5",
|
||||
[6] =
|
||||
"ft6",
|
||||
[7] =
|
||||
"ft7",
|
||||
[8] =
|
||||
"fs0",
|
||||
[9] =
|
||||
"fs1",
|
||||
[10] =
|
||||
"fa0",
|
||||
[11] =
|
||||
"fa1",
|
||||
[12] =
|
||||
"fa2",
|
||||
[13] =
|
||||
"fa3",
|
||||
[14] =
|
||||
"fa4",
|
||||
[15] =
|
||||
"fa5",
|
||||
[16] =
|
||||
"fa6",
|
||||
[17] =
|
||||
"fa7",
|
||||
[18] =
|
||||
"fs2",
|
||||
[19] =
|
||||
"fs3",
|
||||
[20] =
|
||||
"fs4",
|
||||
[21] =
|
||||
"fs5",
|
||||
[22] =
|
||||
"fs6",
|
||||
[23] =
|
||||
"fs7",
|
||||
[24] =
|
||||
"fs8",
|
||||
[25] =
|
||||
"fs9",
|
||||
[26] =
|
||||
"fs10",
|
||||
[27] =
|
||||
"fs11",
|
||||
[28] =
|
||||
"ft8",
|
||||
[29] =
|
||||
"ft9",
|
||||
[30] =
|
||||
"ft10",
|
||||
[31] =
|
||||
"ft11",
|
||||
},
|
||||
32,
|
||||
},
|
||||
{
|
||||
"riscv-64bit-fpu.xml",
|
||||
"<?xml version=\"1.0\"?>\n"
|
||||
"<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc.\n"
|
||||
"\n"
|
||||
" Copying and distribution of this file, with or without modification,\n"
|
||||
" are permitted in any medium without royalty provided the copyright\n"
|
||||
" notice and this notice are preserved. -->\n"
|
||||
"\n"
|
||||
"<!DOCTYPE feature SYSTEM \"gdb-target.dtd\">\n"
|
||||
"<feature name=\"org.gnu.gdb.riscv.fpu\">\n"
|
||||
"\n"
|
||||
" <union id=\"riscv_double\">\n"
|
||||
" <field name=\"float\" type=\"ieee_single\"/>\n"
|
||||
" <field name=\"double\" type=\"ieee_double\"/>\n"
|
||||
" </union>\n"
|
||||
"\n"
|
||||
" <reg name=\"ft0\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft1\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft2\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft3\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft4\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft5\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft6\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft7\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs0\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs1\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa0\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa1\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa2\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa3\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa4\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa5\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa6\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fa7\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs2\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs3\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs4\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs5\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs6\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs7\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs8\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs9\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs10\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"fs11\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft8\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft9\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft10\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
" <reg name=\"ft11\" bitsize=\"64\" type=\"riscv_double\"/>\n"
|
||||
"</feature>\n",
|
||||
"org.gnu.gdb.riscv.fpu",
|
||||
(const char * const []) {
|
||||
[0] =
|
||||
"ft0",
|
||||
[1] =
|
||||
"ft1",
|
||||
[2] =
|
||||
"ft2",
|
||||
[3] =
|
||||
"ft3",
|
||||
[4] =
|
||||
"ft4",
|
||||
[5] =
|
||||
"ft5",
|
||||
[6] =
|
||||
"ft6",
|
||||
[7] =
|
||||
"ft7",
|
||||
[8] =
|
||||
"fs0",
|
||||
[9] =
|
||||
"fs1",
|
||||
[10] =
|
||||
"fa0",
|
||||
[11] =
|
||||
"fa1",
|
||||
[12] =
|
||||
"fa2",
|
||||
[13] =
|
||||
"fa3",
|
||||
[14] =
|
||||
"fa4",
|
||||
[15] =
|
||||
"fa5",
|
||||
[16] =
|
||||
"fa6",
|
||||
[17] =
|
||||
"fa7",
|
||||
[18] =
|
||||
"fs2",
|
||||
[19] =
|
||||
"fs3",
|
||||
[20] =
|
||||
"fs4",
|
||||
[21] =
|
||||
"fs5",
|
||||
[22] =
|
||||
"fs6",
|
||||
[23] =
|
||||
"fs7",
|
||||
[24] =
|
||||
"fs8",
|
||||
[25] =
|
||||
"fs9",
|
||||
[26] =
|
||||
"fs10",
|
||||
[27] =
|
||||
"fs11",
|
||||
[28] =
|
||||
"ft8",
|
||||
[29] =
|
||||
"ft9",
|
||||
[30] =
|
||||
"ft10",
|
||||
[31] =
|
||||
"ft11",
|
||||
},
|
||||
32,
|
||||
},
|
||||
{
|
||||
"riscv-64bit-virtual.xml",
|
||||
"<?xml version=\"1.0\"?>\n"
|
||||
"<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc.\n"
|
||||
"\n"
|
||||
" Copying and distribution of this file, with or without modification,\n"
|
||||
" are permitted in any medium without royalty provided the copyright\n"
|
||||
" notice and this notice are preserved. -->\n"
|
||||
"\n"
|
||||
"<!DOCTYPE feature SYSTEM \"gdb-target.dtd\">\n"
|
||||
"<feature name=\"org.gnu.gdb.riscv.virtual\">\n"
|
||||
" <reg name=\"priv\" bitsize=\"64\"/>\n"
|
||||
"</feature>\n",
|
||||
"org.gnu.gdb.riscv.virtual",
|
||||
(const char * const []) {
|
||||
[0] =
|
||||
"priv",
|
||||
},
|
||||
1,
|
||||
},
|
||||
{
|
||||
"riscv-32bit-cpu.xml",
|
||||
"<?xml version=\"1.0\"?>\n"
|
||||
"<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc.\n"
|
||||
"\n"
|
||||
" Copying and distribution of this file, with or without modification,\n"
|
||||
" are permitted in any medium without royalty provided the copyright\n"
|
||||
" notice and this notice are preserved. -->\n"
|
||||
"\n"
|
||||
"<!DOCTYPE feature SYSTEM \"gdb-target.dtd\">\n"
|
||||
"<feature name=\"org.gnu.gdb.riscv.cpu\">\n"
|
||||
" <reg name=\"zero\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"ra\" bitsize=\"32\" type=\"code_ptr\"/>\n"
|
||||
" <reg name=\"sp\" bitsize=\"32\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"gp\" bitsize=\"32\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"tp\" bitsize=\"32\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"t0\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"t1\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"t2\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"fp\" bitsize=\"32\" type=\"data_ptr\"/>\n"
|
||||
" <reg name=\"s1\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a0\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a1\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a2\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a3\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a4\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a5\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a6\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"a7\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s2\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s3\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s4\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s5\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s6\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s7\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s8\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s9\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s10\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"s11\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"t3\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"t4\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"t5\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"t6\" bitsize=\"32\" type=\"int\"/>\n"
|
||||
" <reg name=\"pc\" bitsize=\"32\" type=\"code_ptr\"/>\n"
|
||||
"</feature>\n",
|
||||
"org.gnu.gdb.riscv.cpu",
|
||||
(const char * const []) {
|
||||
[0] =
|
||||
"zero",
|
||||
[1] =
|
||||
"ra",
|
||||
[2] =
|
||||
"sp",
|
||||
[3] =
|
||||
"gp",
|
||||
[4] =
|
||||
"tp",
|
||||
[5] =
|
||||
"t0",
|
||||
[6] =
|
||||
"t1",
|
||||
[7] =
|
||||
"t2",
|
||||
[8] =
|
||||
"fp",
|
||||
[9] =
|
||||
"s1",
|
||||
[10] =
|
||||
"a0",
|
||||
[11] =
|
||||
"a1",
|
||||
[12] =
|
||||
"a2",
|
||||
[13] =
|
||||
"a3",
|
||||
[14] =
|
||||
"a4",
|
||||
[15] =
|
||||
"a5",
|
||||
[16] =
|
||||
"a6",
|
||||
[17] =
|
||||
"a7",
|
||||
[18] =
|
||||
"s2",
|
||||
[19] =
|
||||
"s3",
|
||||
[20] =
|
||||
"s4",
|
||||
[21] =
|
||||
"s5",
|
||||
[22] =
|
||||
"s6",
|
||||
[23] =
|
||||
"s7",
|
||||
[24] =
|
||||
"s8",
|
||||
[25] =
|
||||
"s9",
|
||||
[26] =
|
||||
"s10",
|
||||
[27] =
|
||||
"s11",
|
||||
[28] =
|
||||
"t3",
|
||||
[29] =
|
||||
"t4",
|
||||
[30] =
|
||||
"t5",
|
||||
[31] =
|
||||
"t6",
|
||||
[32] =
|
||||
"pc",
|
||||
},
|
||||
33,
|
||||
},
|
||||
{
|
||||
"riscv-32bit-virtual.xml",
|
||||
"<?xml version=\"1.0\"?>\n"
|
||||
"<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc.\n"
|
||||
"\n"
|
||||
" Copying and distribution of this file, with or without modification,\n"
|
||||
" are permitted in any medium without royalty provided the copyright\n"
|
||||
" notice and this notice are preserved. -->\n"
|
||||
"\n"
|
||||
"<!DOCTYPE feature SYSTEM \"gdb-target.dtd\">\n"
|
||||
"<feature name=\"org.gnu.gdb.riscv.virtual\">\n"
|
||||
" <reg name=\"priv\" bitsize=\"32\"/>\n"
|
||||
"</feature>\n",
|
||||
"org.gnu.gdb.riscv.virtual",
|
||||
(const char * const []) {
|
||||
[0] =
|
||||
"priv",
|
||||
},
|
||||
1,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
647
gdbstub/system.c
647
gdbstub/system.c
|
|
@ -10,37 +10,10 @@
|
|||
* SPDX-License-Identifier: LGPL-2.0-or-later
|
||||
*/
|
||||
|
||||
#include "accel/accel-cpu-ops.h"
|
||||
#include "accel/accel-ops.h"
|
||||
#include "chardev/char-fe.h"
|
||||
#include "chardev/char.h"
|
||||
#include "exec/gdbstub.h"
|
||||
#include "exec/hwaddr.h"
|
||||
#include "exec/tb-flush.h"
|
||||
#include "gdbstub/commands.h"
|
||||
#include "gdbstub/syscalls.h"
|
||||
#include "hw/boards.h"
|
||||
#include "hw/core/cpu.h"
|
||||
#include "hw/cpu/cluster.h"
|
||||
#include "commands.h"
|
||||
#include "cpu.h"
|
||||
#include "enums.h"
|
||||
#include "internals.h"
|
||||
#include "monitor/monitor.h"
|
||||
#include "qapi/error.h"
|
||||
#include "qemu/cutils.h"
|
||||
#include "qemu/error-report.h"
|
||||
#include "qemu/osdep.h"
|
||||
#include "system/cpus.h"
|
||||
#include "system/replay.h"
|
||||
#include "system/runstate.h"
|
||||
#include "system/tcg.h"
|
||||
#include "trace.h"
|
||||
|
||||
/* System emulation specific state */
|
||||
typedef struct {
|
||||
CharBackend chr;
|
||||
Chardev *mon_chr;
|
||||
} GDBSystemState;
|
||||
|
||||
GDBSystemState gdbserver_system_state;
|
||||
|
||||
static void reset_gdbserver_state(void) {
|
||||
g_free(gdbserver_state.processes);
|
||||
|
|
@ -55,7 +28,7 @@ static void reset_gdbserver_state(void) {
|
|||
* In system mode GDB numbers CPUs from 1 as 0 is reserved as an "any
|
||||
* cpu" index.
|
||||
*/
|
||||
int gdb_get_cpu_index(CPUState *cpu) { return cpu->cpu_index + 1; }
|
||||
int gdb_get_cpu_index(CPUState *cpu) { return 0; }
|
||||
|
||||
/*
|
||||
* We check the status of the last message in the chardev receive code
|
||||
|
|
@ -68,171 +41,163 @@ bool gdb_got_immediate_ack(void) { return true; }
|
|||
* network and unix sockets.
|
||||
*/
|
||||
|
||||
void gdb_put_buffer(const uint8_t *buf, int len) {
|
||||
/*
|
||||
* XXX this blocks entire thread. Rewrite to use
|
||||
* qemu_chr_fe_write and background I/O callbacks
|
||||
*/
|
||||
qemu_chr_fe_write_all(&gdbserver_system_state.chr, buf, len);
|
||||
}
|
||||
// static void gdb_chr_event(void *opaque, QEMUChrEvent event) {
|
||||
// int i;
|
||||
// GDBState *s = (GDBState *)opaque;
|
||||
|
||||
static void gdb_chr_event(void *opaque, QEMUChrEvent event) {
|
||||
int i;
|
||||
GDBState *s = (GDBState *)opaque;
|
||||
// switch (event) {
|
||||
// case CHR_EVENT_OPENED:
|
||||
// /* Start with first process attached, others detached */
|
||||
// for (i = 0; i < s->process_num; i++) {
|
||||
// s->processes[i].attached = !i;
|
||||
// }
|
||||
|
||||
switch (event) {
|
||||
case CHR_EVENT_OPENED:
|
||||
/* Start with first process attached, others detached */
|
||||
for (i = 0; i < s->process_num; i++) {
|
||||
s->processes[i].attached = !i;
|
||||
}
|
||||
// s->c_cpu = gdb_first_attached_cpu();
|
||||
// s->g_cpu = s->c_cpu;
|
||||
|
||||
s->c_cpu = gdb_first_attached_cpu();
|
||||
s->g_cpu = s->c_cpu;
|
||||
// vm_stop(RUN_STATE_PAUSED);
|
||||
// replay_gdb_attached();
|
||||
// break;
|
||||
// default:
|
||||
// break;
|
||||
// }
|
||||
// }
|
||||
|
||||
vm_stop(RUN_STATE_PAUSED);
|
||||
replay_gdb_attached();
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
// /*
|
||||
// * In system-mode we stop the VM and wait to send the syscall packet
|
||||
// * until notification that the CPU has stopped. This must be done
|
||||
// * because if the packet is sent now the reply from the syscall
|
||||
// * request could be received while the CPU is still in the running
|
||||
// * state, which can cause packets to be dropped and state transition
|
||||
// * 'T' packets to be sent while the syscall is still being processed.
|
||||
// */
|
||||
// void gdb_syscall_handling(const char *syscall_packet) {
|
||||
// vm_stop(RUN_STATE_DEBUG);
|
||||
// qemu_cpu_kick(gdbserver_state.c_cpu);
|
||||
// }
|
||||
|
||||
/*
|
||||
* In system-mode we stop the VM and wait to send the syscall packet
|
||||
* until notification that the CPU has stopped. This must be done
|
||||
* because if the packet is sent now the reply from the syscall
|
||||
* request could be received while the CPU is still in the running
|
||||
* state, which can cause packets to be dropped and state transition
|
||||
* 'T' packets to be sent while the syscall is still being processed.
|
||||
*/
|
||||
void gdb_syscall_handling(const char *syscall_packet) {
|
||||
vm_stop(RUN_STATE_DEBUG);
|
||||
qemu_cpu_kick(gdbserver_state.c_cpu);
|
||||
}
|
||||
// static void gdb_vm_state_change(void *opaque, bool running, RunState state) {
|
||||
// CPUState *cpu = gdbserver_state.c_cpu;
|
||||
// g_autoptr(GString) buf = g_string_new(NULL);
|
||||
// g_autoptr(GString) tid = g_string_new(NULL);
|
||||
// const char *type;
|
||||
// int ret;
|
||||
|
||||
static void gdb_vm_state_change(void *opaque, bool running, RunState state) {
|
||||
CPUState *cpu = gdbserver_state.c_cpu;
|
||||
g_autoptr(GString) buf = g_string_new(NULL);
|
||||
g_autoptr(GString) tid = g_string_new(NULL);
|
||||
const char *type;
|
||||
int ret;
|
||||
// if (running || gdbserver_state.state == RS_INACTIVE) {
|
||||
// return;
|
||||
// }
|
||||
|
||||
if (running || gdbserver_state.state == RS_INACTIVE) {
|
||||
return;
|
||||
}
|
||||
// /* Is there a GDB syscall waiting to be sent? */
|
||||
// if (gdb_handled_syscall()) {
|
||||
// return;
|
||||
// }
|
||||
|
||||
/* Is there a GDB syscall waiting to be sent? */
|
||||
if (gdb_handled_syscall()) {
|
||||
return;
|
||||
}
|
||||
// if (cpu == NULL) {
|
||||
// /* No process attached */
|
||||
// return;
|
||||
// }
|
||||
|
||||
if (cpu == NULL) {
|
||||
/* No process attached */
|
||||
return;
|
||||
}
|
||||
// if (!gdbserver_state.allow_stop_reply) {
|
||||
// return;
|
||||
// }
|
||||
|
||||
if (!gdbserver_state.allow_stop_reply) {
|
||||
return;
|
||||
}
|
||||
// gdb_append_thread_id(cpu, tid);
|
||||
|
||||
gdb_append_thread_id(cpu, tid);
|
||||
// switch (state) {
|
||||
// case RUN_STATE_DEBUG:
|
||||
// if (cpu->watchpoint_hit) {
|
||||
// switch (cpu->watchpoint_hit->flags & BP_MEM_ACCESS) {
|
||||
// case BP_MEM_READ:
|
||||
// type = "r";
|
||||
// break;
|
||||
// case BP_MEM_ACCESS:
|
||||
// type = "a";
|
||||
// break;
|
||||
// default:
|
||||
// type = "";
|
||||
// break;
|
||||
// }
|
||||
// trace_gdbstub_hit_watchpoint(type, gdb_get_cpu_index(cpu), cpu->watchpoint_hit->vaddr);
|
||||
// g_string_printf(buf, "T%02xthread:%s;%swatch:%" VADDR_PRIx ";", GDB_SIGNAL_TRAP, tid->str, type,
|
||||
// cpu->watchpoint_hit->vaddr);
|
||||
// cpu->watchpoint_hit = NULL;
|
||||
// goto send_packet;
|
||||
// } else {
|
||||
// trace_gdbstub_hit_break();
|
||||
// }
|
||||
// if (tcg_enabled()) {
|
||||
// tb_flush(cpu);
|
||||
// }
|
||||
// ret = GDB_SIGNAL_TRAP;
|
||||
// break;
|
||||
// case RUN_STATE_PAUSED:
|
||||
// trace_gdbstub_hit_paused();
|
||||
// ret = GDB_SIGNAL_INT;
|
||||
// break;
|
||||
// case RUN_STATE_SHUTDOWN:
|
||||
// trace_gdbstub_hit_shutdown();
|
||||
// ret = GDB_SIGNAL_QUIT;
|
||||
// break;
|
||||
// case RUN_STATE_IO_ERROR:
|
||||
// trace_gdbstub_hit_io_error();
|
||||
// ret = GDB_SIGNAL_STOP;
|
||||
// break;
|
||||
// case RUN_STATE_WATCHDOG:
|
||||
// trace_gdbstub_hit_watchdog();
|
||||
// ret = GDB_SIGNAL_ALRM;
|
||||
// break;
|
||||
// case RUN_STATE_INTERNAL_ERROR:
|
||||
// trace_gdbstub_hit_internal_error();
|
||||
// ret = GDB_SIGNAL_ABRT;
|
||||
// break;
|
||||
// case RUN_STATE_SAVE_VM:
|
||||
// case RUN_STATE_RESTORE_VM:
|
||||
// return;
|
||||
// case RUN_STATE_FINISH_MIGRATE:
|
||||
// ret = GDB_SIGNAL_XCPU;
|
||||
// break;
|
||||
// default:
|
||||
// trace_gdbstub_hit_unknown(state);
|
||||
// ret = GDB_SIGNAL_UNKNOWN;
|
||||
// break;
|
||||
// }
|
||||
// gdb_set_stop_cpu(cpu);
|
||||
// g_string_printf(buf, "T%02xthread:%s;", ret, tid->str);
|
||||
|
||||
switch (state) {
|
||||
case RUN_STATE_DEBUG:
|
||||
if (cpu->watchpoint_hit) {
|
||||
switch (cpu->watchpoint_hit->flags & BP_MEM_ACCESS) {
|
||||
case BP_MEM_READ:
|
||||
type = "r";
|
||||
break;
|
||||
case BP_MEM_ACCESS:
|
||||
type = "a";
|
||||
break;
|
||||
default:
|
||||
type = "";
|
||||
break;
|
||||
}
|
||||
trace_gdbstub_hit_watchpoint(type, gdb_get_cpu_index(cpu), cpu->watchpoint_hit->vaddr);
|
||||
g_string_printf(buf, "T%02xthread:%s;%swatch:%" VADDR_PRIx ";", GDB_SIGNAL_TRAP, tid->str, type,
|
||||
cpu->watchpoint_hit->vaddr);
|
||||
cpu->watchpoint_hit = NULL;
|
||||
goto send_packet;
|
||||
} else {
|
||||
trace_gdbstub_hit_break();
|
||||
}
|
||||
if (tcg_enabled()) {
|
||||
tb_flush(cpu);
|
||||
}
|
||||
ret = GDB_SIGNAL_TRAP;
|
||||
break;
|
||||
case RUN_STATE_PAUSED:
|
||||
trace_gdbstub_hit_paused();
|
||||
ret = GDB_SIGNAL_INT;
|
||||
break;
|
||||
case RUN_STATE_SHUTDOWN:
|
||||
trace_gdbstub_hit_shutdown();
|
||||
ret = GDB_SIGNAL_QUIT;
|
||||
break;
|
||||
case RUN_STATE_IO_ERROR:
|
||||
trace_gdbstub_hit_io_error();
|
||||
ret = GDB_SIGNAL_STOP;
|
||||
break;
|
||||
case RUN_STATE_WATCHDOG:
|
||||
trace_gdbstub_hit_watchdog();
|
||||
ret = GDB_SIGNAL_ALRM;
|
||||
break;
|
||||
case RUN_STATE_INTERNAL_ERROR:
|
||||
trace_gdbstub_hit_internal_error();
|
||||
ret = GDB_SIGNAL_ABRT;
|
||||
break;
|
||||
case RUN_STATE_SAVE_VM:
|
||||
case RUN_STATE_RESTORE_VM:
|
||||
return;
|
||||
case RUN_STATE_FINISH_MIGRATE:
|
||||
ret = GDB_SIGNAL_XCPU;
|
||||
break;
|
||||
default:
|
||||
trace_gdbstub_hit_unknown(state);
|
||||
ret = GDB_SIGNAL_UNKNOWN;
|
||||
break;
|
||||
}
|
||||
gdb_set_stop_cpu(cpu);
|
||||
g_string_printf(buf, "T%02xthread:%s;", ret, tid->str);
|
||||
// send_packet:
|
||||
// gdb_put_packet(buf->str);
|
||||
// gdbserver_state.allow_stop_reply = false;
|
||||
|
||||
send_packet:
|
||||
gdb_put_packet(buf->str);
|
||||
gdbserver_state.allow_stop_reply = false;
|
||||
// /* disable single step if it was enabled */
|
||||
// cpu_single_step(cpu, 0);
|
||||
// }
|
||||
|
||||
/* disable single step if it was enabled */
|
||||
cpu_single_step(cpu, 0);
|
||||
}
|
||||
// static int gdb_monitor_write(Chardev *chr, const uint8_t *buf, int len) {
|
||||
// g_autoptr(GString) hex_buf = g_string_new("O");
|
||||
// gdb_memtohex(hex_buf, buf, len);
|
||||
// gdb_put_packet(hex_buf->str);
|
||||
// return len;
|
||||
// }
|
||||
|
||||
static int gdb_monitor_write(Chardev *chr, const uint8_t *buf, int len) {
|
||||
g_autoptr(GString) hex_buf = g_string_new("O");
|
||||
gdb_memtohex(hex_buf, buf, len);
|
||||
gdb_put_packet(hex_buf->str);
|
||||
return len;
|
||||
}
|
||||
// static void gdb_monitor_open(Chardev *chr, ChardevBackend *backend, bool *be_opened, Error **errp) {
|
||||
// *be_opened = false;
|
||||
// }
|
||||
|
||||
static void gdb_monitor_open(Chardev *chr, ChardevBackend *backend, bool *be_opened, Error **errp) {
|
||||
*be_opened = false;
|
||||
}
|
||||
// static void char_gdb_class_init(ObjectClass *oc, const void *data) {
|
||||
// ChardevClass *cc = CHARDEV_CLASS(oc);
|
||||
|
||||
static void char_gdb_class_init(ObjectClass *oc, const void *data) {
|
||||
ChardevClass *cc = CHARDEV_CLASS(oc);
|
||||
// cc->internal = true;
|
||||
// cc->open = gdb_monitor_open;
|
||||
// cc->chr_write = gdb_monitor_write;
|
||||
// }
|
||||
|
||||
cc->internal = true;
|
||||
cc->open = gdb_monitor_open;
|
||||
cc->chr_write = gdb_monitor_write;
|
||||
}
|
||||
// #define TYPE_CHARDEV_GDB "chardev-gdb"
|
||||
|
||||
#define TYPE_CHARDEV_GDB "chardev-gdb"
|
||||
|
||||
static const TypeInfo char_gdb_type_info = {
|
||||
.name = TYPE_CHARDEV_GDB,
|
||||
.parent = TYPE_CHARDEV,
|
||||
.class_init = char_gdb_class_init,
|
||||
};
|
||||
// static const TypeInfo char_gdb_type_info = {
|
||||
// .name = TYPE_CHARDEV_GDB,
|
||||
// .parent = TYPE_CHARDEV,
|
||||
// .class_init = char_gdb_class_init,
|
||||
// };
|
||||
|
||||
static int gdb_chr_can_receive(void *opaque) {
|
||||
/*
|
||||
|
|
@ -250,31 +215,31 @@ static void gdb_chr_receive(void *opaque, const uint8_t *buf, int size) {
|
|||
}
|
||||
}
|
||||
|
||||
static int find_cpu_clusters(Object *child, void *opaque) {
|
||||
if (object_dynamic_cast(child, TYPE_CPU_CLUSTER)) {
|
||||
GDBState *s = (GDBState *)opaque;
|
||||
CPUClusterState *cluster = CPU_CLUSTER(child);
|
||||
GDBProcess *process;
|
||||
// static int find_cpu_clusters(Object *child, void *opaque) {
|
||||
// if (object_dynamic_cast(child, TYPE_CPU_CLUSTER)) {
|
||||
// GDBState *s = (GDBState *)opaque;
|
||||
// CPUClusterState *cluster = CPU_CLUSTER(child);
|
||||
// GDBProcess *process;
|
||||
|
||||
s->processes = g_renew(GDBProcess, s->processes, ++s->process_num);
|
||||
// s->processes = g_renew(GDBProcess, s->processes, ++s->process_num);
|
||||
|
||||
process = &s->processes[s->process_num - 1];
|
||||
// process = &s->processes[s->process_num - 1];
|
||||
|
||||
/*
|
||||
* GDB process IDs -1 and 0 are reserved. To avoid subtle errors at
|
||||
* runtime, we enforce here that the machine does not use a cluster ID
|
||||
* that would lead to PID 0.
|
||||
*/
|
||||
assert(cluster->cluster_id != UINT32_MAX);
|
||||
process->pid = cluster->cluster_id + 1;
|
||||
process->attached = false;
|
||||
process->target_xml = NULL;
|
||||
// /*
|
||||
// * GDB process IDs -1 and 0 are reserved. To avoid subtle errors at
|
||||
// * runtime, we enforce here that the machine does not use a cluster ID
|
||||
// * that would lead to PID 0.
|
||||
// */
|
||||
// assert(cluster->cluster_id != UINT32_MAX);
|
||||
// process->pid = cluster->cluster_id + 1;
|
||||
// process->attached = false;
|
||||
// process->target_xml = NULL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
// return 0;
|
||||
// }
|
||||
|
||||
return object_child_foreach(child, find_cpu_clusters, opaque);
|
||||
}
|
||||
// return object_child_foreach(child, find_cpu_clusters, opaque);
|
||||
// }
|
||||
|
||||
static int pid_order(const void *a, const void *b) {
|
||||
GDBProcess *pa = (GDBProcess *)a;
|
||||
|
|
@ -289,160 +254,139 @@ static int pid_order(const void *a, const void *b) {
|
|||
}
|
||||
}
|
||||
|
||||
static void create_processes(GDBState *s) {
|
||||
object_child_foreach(object_get_root(), find_cpu_clusters, s);
|
||||
// static void create_processes(GDBState *s) {
|
||||
// object_child_foreach(object_get_root(), find_cpu_clusters, s);
|
||||
|
||||
if (gdbserver_state.processes) {
|
||||
/* Sort by PID */
|
||||
qsort(gdbserver_state.processes, gdbserver_state.process_num, sizeof(gdbserver_state.processes[0]), pid_order);
|
||||
}
|
||||
// if (gdbserver_state.processes) {
|
||||
// /* Sort by PID */
|
||||
// qsort(gdbserver_state.processes, gdbserver_state.process_num, sizeof(gdbserver_state.processes[0]), pid_order);
|
||||
// }
|
||||
|
||||
gdb_create_default_process(s);
|
||||
}
|
||||
// gdb_create_default_process(s);
|
||||
// }
|
||||
|
||||
bool gdbserver_start(const char *device, Error **errp) {
|
||||
Chardev *chr = NULL;
|
||||
Chardev *mon_chr;
|
||||
g_autoptr(GString) cs = g_string_new(device);
|
||||
// bool gdbserver_start(const char *device, Error **errp) {
|
||||
// Chardev *chr = NULL;
|
||||
// Chardev *mon_chr;
|
||||
// g_autoptr(GString) cs = g_string_new(device);
|
||||
|
||||
if (!first_cpu) {
|
||||
error_setg(errp,
|
||||
"gdbstub: meaningless to attach gdb to a "
|
||||
"machine without any CPU.");
|
||||
return false;
|
||||
}
|
||||
// if (!get_cpu()) {
|
||||
// error_setg(errp,
|
||||
// "gdbstub: meaningless to attach gdb to a "
|
||||
// "machine without any CPU.");
|
||||
// return false;
|
||||
// }
|
||||
|
||||
if (!gdb_supports_guest_debug()) {
|
||||
error_setg(errp,
|
||||
"gdbstub: current accelerator doesn't "
|
||||
"support guest debugging");
|
||||
return false;
|
||||
}
|
||||
// if (!gdb_supports_guest_debug()) {
|
||||
// error_setg(errp,
|
||||
// "gdbstub: current accelerator doesn't "
|
||||
// "support guest debugging");
|
||||
// return false;
|
||||
// }
|
||||
|
||||
if (cs->len == 0) {
|
||||
error_setg(errp, "gdbstub: missing connection string");
|
||||
return false;
|
||||
}
|
||||
// if (cs->len == 0) {
|
||||
// error_setg(errp, "gdbstub: missing connection string");
|
||||
// return false;
|
||||
// }
|
||||
|
||||
trace_gdbstub_op_start(cs->str);
|
||||
// trace_gdbstub_op_start(cs->str);
|
||||
|
||||
if (g_strcmp0(cs->str, "none") != 0) {
|
||||
if (g_str_has_prefix(cs->str, "tcp:")) {
|
||||
/* enforce required TCP attributes */
|
||||
g_string_append_printf(cs, ",wait=off,nodelay=on,server=on");
|
||||
}
|
||||
#ifndef _WIN32
|
||||
else if (strcmp(device, "stdio") == 0) {
|
||||
struct sigaction act;
|
||||
// if (g_strcmp0(cs->str, "none") != 0) {
|
||||
// if (g_str_has_prefix(cs->str, "tcp:")) {
|
||||
// /* enforce required TCP attributes */
|
||||
// g_string_append_printf(cs, ",wait=off,nodelay=on,server=on");
|
||||
// }
|
||||
// /*
|
||||
// * FIXME: it's a bit weird to allow using a mux chardev here
|
||||
// * and implicitly setup a monitor. We may want to break this.
|
||||
// */
|
||||
// chr = qemu_chr_new_noreplay("gdb", cs->str, true, NULL);
|
||||
// if (!chr) {
|
||||
// error_setg(errp, "gdbstub: couldn't create chardev");
|
||||
// return false;
|
||||
// }
|
||||
// }
|
||||
|
||||
memset(&act, 0, sizeof(act));
|
||||
act.sa_handler = gdb_sigterm_handler;
|
||||
sigaction(SIGINT, &act, NULL);
|
||||
}
|
||||
#endif
|
||||
/*
|
||||
* FIXME: it's a bit weird to allow using a mux chardev here
|
||||
* and implicitly setup a monitor. We may want to break this.
|
||||
*/
|
||||
chr = qemu_chr_new_noreplay("gdb", cs->str, true, NULL);
|
||||
if (!chr) {
|
||||
error_setg(errp, "gdbstub: couldn't create chardev");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
// if (!gdbserver_state.init) {
|
||||
// gdb_init_gdbserver_state();
|
||||
|
||||
if (!gdbserver_state.init) {
|
||||
gdb_init_gdbserver_state();
|
||||
// qemu_add_vm_change_state_handler(gdb_vm_state_change, NULL);
|
||||
|
||||
qemu_add_vm_change_state_handler(gdb_vm_state_change, NULL);
|
||||
// /* Initialize a monitor terminal for gdb */
|
||||
// mon_chr = qemu_chardev_new(NULL, TYPE_CHARDEV_GDB, NULL, NULL, &error_abort);
|
||||
// monitor_init_hmp(mon_chr, false, &error_abort);
|
||||
// } else {
|
||||
// qemu_chr_fe_deinit(&gdbserver_system_state.chr, true);
|
||||
// mon_chr = gdbserver_system_state.mon_chr;
|
||||
// reset_gdbserver_state();
|
||||
// }
|
||||
|
||||
/* Initialize a monitor terminal for gdb */
|
||||
mon_chr = qemu_chardev_new(NULL, TYPE_CHARDEV_GDB, NULL, NULL, &error_abort);
|
||||
monitor_init_hmp(mon_chr, false, &error_abort);
|
||||
} else {
|
||||
qemu_chr_fe_deinit(&gdbserver_system_state.chr, true);
|
||||
mon_chr = gdbserver_system_state.mon_chr;
|
||||
reset_gdbserver_state();
|
||||
}
|
||||
// create_processes(&gdbserver_state);
|
||||
|
||||
create_processes(&gdbserver_state);
|
||||
// if (chr) {
|
||||
// qemu_chr_fe_init(&gdbserver_system_state.chr, chr, &error_abort);
|
||||
// qemu_chr_fe_set_handlers(&gdbserver_system_state.chr, gdb_chr_can_receive, gdb_chr_receive, gdb_chr_event, NULL,
|
||||
// &gdbserver_state, NULL, true);
|
||||
// }
|
||||
// gdbserver_state.state = chr ? RS_IDLE : RS_INACTIVE;
|
||||
// gdbserver_system_state.mon_chr = mon_chr;
|
||||
// gdb_syscall_reset();
|
||||
|
||||
if (chr) {
|
||||
qemu_chr_fe_init(&gdbserver_system_state.chr, chr, &error_abort);
|
||||
qemu_chr_fe_set_handlers(&gdbserver_system_state.chr, gdb_chr_can_receive, gdb_chr_receive, gdb_chr_event, NULL,
|
||||
&gdbserver_state, NULL, true);
|
||||
}
|
||||
gdbserver_state.state = chr ? RS_IDLE : RS_INACTIVE;
|
||||
gdbserver_system_state.mon_chr = mon_chr;
|
||||
gdb_syscall_reset();
|
||||
// return true;
|
||||
// }
|
||||
|
||||
return true;
|
||||
}
|
||||
// static void register_types(void) { type_register_static(&char_gdb_type_info); }
|
||||
|
||||
static void register_types(void) { type_register_static(&char_gdb_type_info); }
|
||||
|
||||
type_init(register_types);
|
||||
// type_init(register_types);
|
||||
|
||||
/* Tell the remote gdb that the process has exited. */
|
||||
void gdb_exit(int code) {
|
||||
char buf[4];
|
||||
// void gdb_exit(int code) {
|
||||
// char buf[4];
|
||||
|
||||
if (!gdbserver_state.init) {
|
||||
return;
|
||||
}
|
||||
// if (!gdbserver_state.init) {
|
||||
// return;
|
||||
// }
|
||||
|
||||
trace_gdbstub_op_exiting((uint8_t)code);
|
||||
// trace_gdbstub_op_exiting((uint8_t)code);
|
||||
|
||||
if (gdbserver_state.allow_stop_reply) {
|
||||
snprintf(buf, sizeof(buf), "W%02x", (uint8_t)code);
|
||||
gdb_put_packet(buf);
|
||||
gdbserver_state.allow_stop_reply = false;
|
||||
}
|
||||
// if (gdbserver_state.allow_stop_reply) {
|
||||
// snprintf(buf, sizeof(buf), "W%02x", (uint8_t)code);
|
||||
// gdb_put_packet(buf);
|
||||
// gdbserver_state.allow_stop_reply = false;
|
||||
// }
|
||||
|
||||
qemu_chr_fe_deinit(&gdbserver_system_state.chr, true);
|
||||
}
|
||||
// qemu_chr_fe_deinit(&gdbserver_system_state.chr, true);
|
||||
// }
|
||||
|
||||
void gdb_qemu_exit(int code) { qemu_system_shutdown_request_with_code(SHUTDOWN_CAUSE_GUEST_SHUTDOWN, code); }
|
||||
// void gdb_qemu_exit(int code) { qemu_system_shutdown_request_with_code(SHUTDOWN_CAUSE_GUEST_SHUTDOWN, code); }
|
||||
|
||||
/*
|
||||
* Memory access
|
||||
*/
|
||||
static int phy_memory_mode;
|
||||
|
||||
int gdb_target_memory_rw_debug(CPUState *cpu, hwaddr addr, uint8_t *buf, int len, bool is_write) {
|
||||
if (phy_memory_mode) {
|
||||
if (is_write) {
|
||||
cpu_physical_memory_write(addr, buf, len);
|
||||
} else {
|
||||
cpu_physical_memory_read(addr, buf, len);
|
||||
}
|
||||
return 0;
|
||||
if (is_write) {
|
||||
cpu_physical_memory_write(addr, buf, len);
|
||||
} else {
|
||||
cpu_physical_memory_read(addr, buf, len);
|
||||
}
|
||||
|
||||
if (cpu->cc->memory_rw_debug) {
|
||||
return cpu->cc->memory_rw_debug(cpu, addr, buf, len, is_write);
|
||||
}
|
||||
|
||||
return cpu_memory_rw_debug(cpu, addr, buf, len, is_write);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* cpu helpers
|
||||
*/
|
||||
|
||||
unsigned int gdb_get_max_cpus(void) {
|
||||
MachineState *ms = MACHINE(qdev_get_machine());
|
||||
return ms->smp.max_cpus;
|
||||
}
|
||||
unsigned int gdb_get_max_cpus(void) { return 1; }
|
||||
|
||||
bool gdb_can_reverse(void) { return replay_mode == REPLAY_MODE_PLAY; }
|
||||
bool gdb_can_reverse(void) { return false; }
|
||||
|
||||
/*
|
||||
* Softmmu specific command helpers
|
||||
*/
|
||||
|
||||
void gdb_handle_query_qemu_phy_mem_mode(GArray *params, void *ctx) {
|
||||
g_string_printf(gdbserver_state.str_buf, "%d", phy_memory_mode);
|
||||
g_string_printf(gdbserver_state.str_buf, "%d", 1);
|
||||
gdb_put_strbuf();
|
||||
}
|
||||
|
||||
|
|
@ -451,12 +395,6 @@ void gdb_handle_set_qemu_phy_mem_mode(GArray *params, void *ctx) {
|
|||
gdb_put_packet("E22");
|
||||
return;
|
||||
}
|
||||
|
||||
if (!gdb_get_cmd_param(params, 0)->val_ul) {
|
||||
phy_memory_mode = 0;
|
||||
} else {
|
||||
phy_memory_mode = 1;
|
||||
}
|
||||
gdb_put_packet("OK");
|
||||
}
|
||||
|
||||
|
|
@ -479,7 +417,10 @@ void gdb_handle_query_rcmd(GArray *params, void *ctx) {
|
|||
len = len / 2;
|
||||
gdb_hextomem(gdbserver_state.mem_buf, gdb_get_cmd_param(params, 0)->data, len);
|
||||
g_byte_array_append(gdbserver_state.mem_buf, &zero, 1);
|
||||
qemu_chr_be_write(gdbserver_system_state.mon_chr, gdbserver_state.mem_buf->data, gdbserver_state.mem_buf->len);
|
||||
|
||||
// qemu_chr_be_write(gdbserver_system_state.mon_chr, gdbserver_state.mem_buf->data, gdbserver_state.mem_buf->len);
|
||||
gdb_put_buffer(gdbserver_state.mem_buf->data, gdbserver_state.mem_buf->len);
|
||||
|
||||
gdb_put_packet("OK");
|
||||
}
|
||||
|
||||
|
|
@ -491,7 +432,7 @@ void gdb_handle_query_attached(GArray *params, void *ctx) { gdb_put_packet("1");
|
|||
|
||||
void gdb_continue(void) {
|
||||
if (!runstate_needs_reset()) {
|
||||
trace_gdbstub_op_continue();
|
||||
// trace_gdbstub_op_continue();
|
||||
vm_start();
|
||||
}
|
||||
}
|
||||
|
|
@ -507,7 +448,7 @@ int gdb_continue_partial(char *newstates) {
|
|||
if (!runstate_needs_reset()) {
|
||||
bool step_requested = false;
|
||||
CPU_FOREACH(cpu) {
|
||||
if (newstates[cpu->cpu_index] == 's') {
|
||||
if (newstates[c->cpu_index] == 's') {
|
||||
step_requested = true;
|
||||
break;
|
||||
}
|
||||
|
|
@ -518,19 +459,19 @@ int gdb_continue_partial(char *newstates) {
|
|||
}
|
||||
|
||||
CPU_FOREACH(cpu) {
|
||||
switch (newstates[cpu->cpu_index]) {
|
||||
switch (newstates[c->cpu_index]) {
|
||||
case 0:
|
||||
case 1:
|
||||
break; /* nothing to do here */
|
||||
case 's':
|
||||
trace_gdbstub_op_stepping(cpu->cpu_index);
|
||||
cpu_single_step(cpu, gdbserver_state.sstep_flags);
|
||||
cpu_resume(cpu);
|
||||
// trace_gdbstub_op_stepping(c->cpu_index);
|
||||
cpu_single_step(c, gdbserver_state.sstep_flags);
|
||||
cpu_resume(c);
|
||||
flag = 1;
|
||||
break;
|
||||
case 'c':
|
||||
trace_gdbstub_op_continue_cpu(cpu->cpu_index);
|
||||
cpu_resume(cpu);
|
||||
// trace_gdbstub_op_continue_cpu(c->cpu_index);
|
||||
cpu_resume(c);
|
||||
flag = 1;
|
||||
break;
|
||||
default:
|
||||
|
|
@ -540,7 +481,7 @@ int gdb_continue_partial(char *newstates) {
|
|||
}
|
||||
}
|
||||
if (flag) {
|
||||
qemu_clock_enable(QEMU_CLOCK_VIRTUAL, true);
|
||||
qemu_clock_enable();
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
|
@ -563,37 +504,37 @@ int gdb_signal_to_target(int sig) {
|
|||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Break/Watch point helpers
|
||||
*/
|
||||
bool runstate_is_running() { return true; }
|
||||
void vm_stop(RunState rs) {}
|
||||
void cpu_synchronize_state(CPUState *cpu) {}
|
||||
void gdb_exit(int i) {};
|
||||
void gdb_qemu_exit(int i) {};
|
||||
|
||||
bool gdb_supports_guest_debug(void) {
|
||||
const AccelOpsClass *ops = cpus_get_accel();
|
||||
if (ops->supports_guest_debug) {
|
||||
return ops->supports_guest_debug();
|
||||
}
|
||||
return false;
|
||||
CPUState *get_cpu() { return (CPUState *)1; }
|
||||
CPUState *cpu_next(CPUState *cpu) {
|
||||
if (cpu)
|
||||
return (CPUState *)0;
|
||||
else
|
||||
return (CPUState *)1;
|
||||
}
|
||||
void gdb_breakpoint_remove_all(CPUState *cs) {}
|
||||
bool gdb_supports_guest_debug(void) { return false; }
|
||||
int gdb_breakpoint_insert(CPUState *cs, int type, vaddr addr, vaddr len) { return 0; }
|
||||
int gdb_breakpoint_remove(CPUState *cs, int type, vaddr addr, vaddr len) { return 0; }
|
||||
|
||||
int gdb_breakpoint_insert(CPUState *cs, int type, vaddr addr, vaddr len) {
|
||||
const AccelOpsClass *ops = cpus_get_accel();
|
||||
if (ops->insert_breakpoint) {
|
||||
return ops->insert_breakpoint(cs, type, addr, len);
|
||||
}
|
||||
return -ENOSYS;
|
||||
}
|
||||
void gdb_put_buffer(const uint8_t *buf, int len) {}
|
||||
|
||||
int gdb_breakpoint_remove(CPUState *cs, int type, vaddr addr, vaddr len) {
|
||||
const AccelOpsClass *ops = cpus_get_accel();
|
||||
if (ops->remove_breakpoint) {
|
||||
return ops->remove_breakpoint(cs, type, addr, len);
|
||||
}
|
||||
return -ENOSYS;
|
||||
}
|
||||
bool gdbserver_start(const char *device, Error **errp) { return false; }
|
||||
|
||||
void gdb_breakpoint_remove_all(CPUState *cs) {
|
||||
const AccelOpsClass *ops = cpus_get_accel();
|
||||
if (ops->remove_all_breakpoints) {
|
||||
ops->remove_all_breakpoints(cs);
|
||||
}
|
||||
}
|
||||
static inline void cpu_physical_memory_write(hwaddr addr, const void *buf, hwaddr len) {}
|
||||
static inline void cpu_physical_memory_read(hwaddr addr, const void *buf, hwaddr len) {}
|
||||
|
||||
bool runstate_needs_reset(void) { return false; }
|
||||
void vm_start() {}
|
||||
bool vm_prepare_start(bool step_requested) { return true; }
|
||||
void qemu_clock_enable() {}
|
||||
|
||||
void gdb_handle_file_io(GArray *params, void *user_ctx) {}
|
||||
void gdb_disable_syscalls(void) {}
|
||||
|
||||
void cpu_single_step(CPUState *cpu, int enabled) {}
|
||||
|
|
@ -1,424 +0,0 @@
|
|||
/*
|
||||
* Target specific user-mode handling
|
||||
*
|
||||
* Copyright (c) 2003-2005 Fabrice Bellard
|
||||
* Copyright (c) 2022 Linaro Ltd
|
||||
*
|
||||
* SPDX-License-Identifier: LGPL-2.0-or-later
|
||||
*/
|
||||
|
||||
#include "qemu/osdep.h"
|
||||
#include "exec/gdbstub.h"
|
||||
#include "gdbstub/commands.h"
|
||||
#include "qemu.h"
|
||||
#include "internals.h"
|
||||
#ifdef CONFIG_LINUX
|
||||
#include "linux-user/loader.h"
|
||||
#include "linux-user/qemu.h"
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Map target signal numbers to GDB protocol signal numbers and vice
|
||||
* versa. For user emulation's currently supported systems, we can
|
||||
* assume most signals are defined.
|
||||
*/
|
||||
|
||||
static int gdb_signal_table[] = {
|
||||
0,
|
||||
TARGET_SIGHUP,
|
||||
TARGET_SIGINT,
|
||||
TARGET_SIGQUIT,
|
||||
TARGET_SIGILL,
|
||||
TARGET_SIGTRAP,
|
||||
TARGET_SIGABRT,
|
||||
-1, /* SIGEMT */
|
||||
TARGET_SIGFPE,
|
||||
TARGET_SIGKILL,
|
||||
TARGET_SIGBUS,
|
||||
TARGET_SIGSEGV,
|
||||
TARGET_SIGSYS,
|
||||
TARGET_SIGPIPE,
|
||||
TARGET_SIGALRM,
|
||||
TARGET_SIGTERM,
|
||||
TARGET_SIGURG,
|
||||
TARGET_SIGSTOP,
|
||||
TARGET_SIGTSTP,
|
||||
TARGET_SIGCONT,
|
||||
TARGET_SIGCHLD,
|
||||
TARGET_SIGTTIN,
|
||||
TARGET_SIGTTOU,
|
||||
TARGET_SIGIO,
|
||||
TARGET_SIGXCPU,
|
||||
TARGET_SIGXFSZ,
|
||||
TARGET_SIGVTALRM,
|
||||
TARGET_SIGPROF,
|
||||
TARGET_SIGWINCH,
|
||||
-1, /* SIGLOST */
|
||||
TARGET_SIGUSR1,
|
||||
TARGET_SIGUSR2,
|
||||
#ifdef TARGET_SIGPWR
|
||||
TARGET_SIGPWR,
|
||||
#else
|
||||
-1,
|
||||
#endif
|
||||
-1, /* SIGPOLL */
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
#ifdef __SIGRTMIN
|
||||
__SIGRTMIN + 1,
|
||||
__SIGRTMIN + 2,
|
||||
__SIGRTMIN + 3,
|
||||
__SIGRTMIN + 4,
|
||||
__SIGRTMIN + 5,
|
||||
__SIGRTMIN + 6,
|
||||
__SIGRTMIN + 7,
|
||||
__SIGRTMIN + 8,
|
||||
__SIGRTMIN + 9,
|
||||
__SIGRTMIN + 10,
|
||||
__SIGRTMIN + 11,
|
||||
__SIGRTMIN + 12,
|
||||
__SIGRTMIN + 13,
|
||||
__SIGRTMIN + 14,
|
||||
__SIGRTMIN + 15,
|
||||
__SIGRTMIN + 16,
|
||||
__SIGRTMIN + 17,
|
||||
__SIGRTMIN + 18,
|
||||
__SIGRTMIN + 19,
|
||||
__SIGRTMIN + 20,
|
||||
__SIGRTMIN + 21,
|
||||
__SIGRTMIN + 22,
|
||||
__SIGRTMIN + 23,
|
||||
__SIGRTMIN + 24,
|
||||
__SIGRTMIN + 25,
|
||||
__SIGRTMIN + 26,
|
||||
__SIGRTMIN + 27,
|
||||
__SIGRTMIN + 28,
|
||||
__SIGRTMIN + 29,
|
||||
__SIGRTMIN + 30,
|
||||
__SIGRTMIN + 31,
|
||||
-1, /* SIGCANCEL */
|
||||
__SIGRTMIN,
|
||||
__SIGRTMIN + 32,
|
||||
__SIGRTMIN + 33,
|
||||
__SIGRTMIN + 34,
|
||||
__SIGRTMIN + 35,
|
||||
__SIGRTMIN + 36,
|
||||
__SIGRTMIN + 37,
|
||||
__SIGRTMIN + 38,
|
||||
__SIGRTMIN + 39,
|
||||
__SIGRTMIN + 40,
|
||||
__SIGRTMIN + 41,
|
||||
__SIGRTMIN + 42,
|
||||
__SIGRTMIN + 43,
|
||||
__SIGRTMIN + 44,
|
||||
__SIGRTMIN + 45,
|
||||
__SIGRTMIN + 46,
|
||||
__SIGRTMIN + 47,
|
||||
__SIGRTMIN + 48,
|
||||
__SIGRTMIN + 49,
|
||||
__SIGRTMIN + 50,
|
||||
__SIGRTMIN + 51,
|
||||
__SIGRTMIN + 52,
|
||||
__SIGRTMIN + 53,
|
||||
__SIGRTMIN + 54,
|
||||
__SIGRTMIN + 55,
|
||||
__SIGRTMIN + 56,
|
||||
__SIGRTMIN + 57,
|
||||
__SIGRTMIN + 58,
|
||||
__SIGRTMIN + 59,
|
||||
__SIGRTMIN + 60,
|
||||
__SIGRTMIN + 61,
|
||||
__SIGRTMIN + 62,
|
||||
__SIGRTMIN + 63,
|
||||
__SIGRTMIN + 64,
|
||||
__SIGRTMIN + 65,
|
||||
__SIGRTMIN + 66,
|
||||
__SIGRTMIN + 67,
|
||||
__SIGRTMIN + 68,
|
||||
__SIGRTMIN + 69,
|
||||
__SIGRTMIN + 70,
|
||||
__SIGRTMIN + 71,
|
||||
__SIGRTMIN + 72,
|
||||
__SIGRTMIN + 73,
|
||||
__SIGRTMIN + 74,
|
||||
__SIGRTMIN + 75,
|
||||
__SIGRTMIN + 76,
|
||||
__SIGRTMIN + 77,
|
||||
__SIGRTMIN + 78,
|
||||
__SIGRTMIN + 79,
|
||||
__SIGRTMIN + 80,
|
||||
__SIGRTMIN + 81,
|
||||
__SIGRTMIN + 82,
|
||||
__SIGRTMIN + 83,
|
||||
__SIGRTMIN + 84,
|
||||
__SIGRTMIN + 85,
|
||||
__SIGRTMIN + 86,
|
||||
__SIGRTMIN + 87,
|
||||
__SIGRTMIN + 88,
|
||||
__SIGRTMIN + 89,
|
||||
__SIGRTMIN + 90,
|
||||
__SIGRTMIN + 91,
|
||||
__SIGRTMIN + 92,
|
||||
__SIGRTMIN + 93,
|
||||
__SIGRTMIN + 94,
|
||||
__SIGRTMIN + 95,
|
||||
-1, /* SIGINFO */
|
||||
-1, /* UNKNOWN */
|
||||
-1, /* DEFAULT */
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1,
|
||||
-1
|
||||
#endif
|
||||
};
|
||||
|
||||
int gdb_signal_to_target(int sig)
|
||||
{
|
||||
if (sig < ARRAY_SIZE(gdb_signal_table)) {
|
||||
return gdb_signal_table[sig];
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
int gdb_target_signal_to_gdb(int sig)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < ARRAY_SIZE(gdb_signal_table); i++) {
|
||||
if (gdb_signal_table[i] == sig) {
|
||||
return i;
|
||||
}
|
||||
}
|
||||
return GDB_SIGNAL_UNKNOWN;
|
||||
}
|
||||
|
||||
int gdb_get_cpu_index(CPUState *cpu)
|
||||
{
|
||||
TaskState *ts = get_task_state(cpu);
|
||||
return ts ? ts->ts_tid : -1;
|
||||
}
|
||||
|
||||
/*
|
||||
* User-mode specific command helpers
|
||||
*/
|
||||
|
||||
void gdb_handle_query_offsets(GArray *params, void *user_ctx)
|
||||
{
|
||||
TaskState *ts;
|
||||
|
||||
ts = get_task_state(gdbserver_state.c_cpu);
|
||||
g_string_printf(gdbserver_state.str_buf,
|
||||
"Text=" TARGET_ABI_FMT_lx
|
||||
";Data=" TARGET_ABI_FMT_lx
|
||||
";Bss=" TARGET_ABI_FMT_lx,
|
||||
ts->info->code_offset,
|
||||
ts->info->data_offset,
|
||||
ts->info->data_offset);
|
||||
gdb_put_strbuf();
|
||||
}
|
||||
|
||||
#if defined(CONFIG_LINUX)
|
||||
/* Partial user only duplicate of helper in gdbstub.c */
|
||||
static inline int target_memory_rw_debug(CPUState *cpu, target_ulong addr,
|
||||
uint8_t *buf, int len, bool is_write)
|
||||
{
|
||||
if (cpu->cc->memory_rw_debug) {
|
||||
return cpu->cc->memory_rw_debug(cpu, addr, buf, len, is_write);
|
||||
}
|
||||
return cpu_memory_rw_debug(cpu, addr, buf, len, is_write);
|
||||
}
|
||||
|
||||
void gdb_handle_query_xfer_auxv(GArray *params, void *user_ctx)
|
||||
{
|
||||
TaskState *ts;
|
||||
unsigned long offset, len, saved_auxv, auxv_len;
|
||||
|
||||
if (params->len < 2) {
|
||||
gdb_put_packet("E22");
|
||||
return;
|
||||
}
|
||||
|
||||
offset = gdb_get_cmd_param(params, 0)->val_ul;
|
||||
len = gdb_get_cmd_param(params, 1)->val_ul;
|
||||
ts = get_task_state(gdbserver_state.c_cpu);
|
||||
saved_auxv = ts->info->saved_auxv;
|
||||
auxv_len = ts->info->auxv_len;
|
||||
|
||||
if (offset >= auxv_len) {
|
||||
gdb_put_packet("E00");
|
||||
return;
|
||||
}
|
||||
|
||||
if (len > (MAX_PACKET_LENGTH - 5) / 2) {
|
||||
len = (MAX_PACKET_LENGTH - 5) / 2;
|
||||
}
|
||||
|
||||
if (len < auxv_len - offset) {
|
||||
g_string_assign(gdbserver_state.str_buf, "m");
|
||||
} else {
|
||||
g_string_assign(gdbserver_state.str_buf, "l");
|
||||
len = auxv_len - offset;
|
||||
}
|
||||
|
||||
g_byte_array_set_size(gdbserver_state.mem_buf, len);
|
||||
if (target_memory_rw_debug(gdbserver_state.g_cpu, saved_auxv + offset,
|
||||
gdbserver_state.mem_buf->data, len, false)) {
|
||||
gdb_put_packet("E14");
|
||||
return;
|
||||
}
|
||||
|
||||
gdb_memtox(gdbserver_state.str_buf,
|
||||
(const char *)gdbserver_state.mem_buf->data, len);
|
||||
gdb_put_packet_binary(gdbserver_state.str_buf->str,
|
||||
gdbserver_state.str_buf->len, true);
|
||||
}
|
||||
#endif
|
||||
|
||||
static const char *get_filename_param(GArray *params, int i)
|
||||
{
|
||||
const char *hex_filename = gdb_get_cmd_param(params, i)->data;
|
||||
gdb_hextomem(gdbserver_state.mem_buf, hex_filename,
|
||||
strlen(hex_filename) / 2);
|
||||
g_byte_array_append(gdbserver_state.mem_buf, (const guint8 *)"", 1);
|
||||
return (const char *)gdbserver_state.mem_buf->data;
|
||||
}
|
||||
|
||||
static void hostio_reply_with_data(const void *buf, size_t n)
|
||||
{
|
||||
g_string_printf(gdbserver_state.str_buf, "F%zx;", n);
|
||||
gdb_memtox(gdbserver_state.str_buf, buf, n);
|
||||
gdb_put_packet_binary(gdbserver_state.str_buf->str,
|
||||
gdbserver_state.str_buf->len, true);
|
||||
}
|
||||
|
||||
void gdb_handle_v_file_open(GArray *params, void *user_ctx)
|
||||
{
|
||||
const char *filename = get_filename_param(params, 0);
|
||||
uint64_t flags = gdb_get_cmd_param(params, 1)->val_ull;
|
||||
uint64_t mode = gdb_get_cmd_param(params, 2)->val_ull;
|
||||
|
||||
#ifdef CONFIG_LINUX
|
||||
int fd = do_guest_openat(cpu_env(gdbserver_state.g_cpu), 0, filename,
|
||||
flags, mode, false);
|
||||
#else
|
||||
int fd = open(filename, flags, mode);
|
||||
#endif
|
||||
if (fd < 0) {
|
||||
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
|
||||
} else {
|
||||
g_string_printf(gdbserver_state.str_buf, "F%x", fd);
|
||||
}
|
||||
gdb_put_strbuf();
|
||||
}
|
||||
|
||||
void gdb_handle_v_file_close(GArray *params, void *user_ctx)
|
||||
{
|
||||
int fd = gdb_get_cmd_param(params, 0)->val_ul;
|
||||
|
||||
if (close(fd) == -1) {
|
||||
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
|
||||
gdb_put_strbuf();
|
||||
return;
|
||||
}
|
||||
|
||||
gdb_put_packet("F00");
|
||||
}
|
||||
|
||||
void gdb_handle_v_file_pread(GArray *params, void *user_ctx)
|
||||
{
|
||||
int fd = gdb_get_cmd_param(params, 0)->val_ul;
|
||||
size_t count = gdb_get_cmd_param(params, 1)->val_ull;
|
||||
off_t offset = gdb_get_cmd_param(params, 2)->val_ull;
|
||||
|
||||
size_t bufsiz = MIN(count, BUFSIZ);
|
||||
g_autofree char *buf = g_try_malloc(bufsiz);
|
||||
if (buf == NULL) {
|
||||
gdb_put_packet("E12");
|
||||
return;
|
||||
}
|
||||
|
||||
ssize_t n = pread(fd, buf, bufsiz, offset);
|
||||
if (n < 0) {
|
||||
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
|
||||
gdb_put_strbuf();
|
||||
return;
|
||||
}
|
||||
hostio_reply_with_data(buf, n);
|
||||
}
|
||||
|
||||
void gdb_handle_v_file_readlink(GArray *params, void *user_ctx)
|
||||
{
|
||||
const char *filename = get_filename_param(params, 0);
|
||||
|
||||
g_autofree char *buf = g_try_malloc(BUFSIZ);
|
||||
if (buf == NULL) {
|
||||
gdb_put_packet("E12");
|
||||
return;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_LINUX
|
||||
ssize_t n = do_guest_readlink(filename, buf, BUFSIZ);
|
||||
#else
|
||||
ssize_t n = readlink(filename, buf, BUFSIZ);
|
||||
#endif
|
||||
if (n < 0) {
|
||||
g_string_printf(gdbserver_state.str_buf, "F-1,%x", errno);
|
||||
gdb_put_strbuf();
|
||||
return;
|
||||
}
|
||||
hostio_reply_with_data(buf, n);
|
||||
}
|
||||
|
||||
void gdb_handle_query_xfer_exec_file(GArray *params, void *user_ctx)
|
||||
{
|
||||
uint32_t pid = gdb_get_cmd_param(params, 0)->val_ul;
|
||||
uint32_t offset = gdb_get_cmd_param(params, 1)->val_ul;
|
||||
uint32_t length = gdb_get_cmd_param(params, 2)->val_ul;
|
||||
|
||||
GDBProcess *process = gdb_get_process(pid);
|
||||
if (!process) {
|
||||
gdb_put_packet("E00");
|
||||
return;
|
||||
}
|
||||
|
||||
CPUState *cpu = gdb_get_first_cpu_in_process(process);
|
||||
if (!cpu) {
|
||||
gdb_put_packet("E00");
|
||||
return;
|
||||
}
|
||||
|
||||
TaskState *ts = get_task_state(cpu);
|
||||
if (!ts || !ts->bprm || !ts->bprm->filename) {
|
||||
gdb_put_packet("E00");
|
||||
return;
|
||||
}
|
||||
|
||||
size_t total_length = strlen(ts->bprm->filename);
|
||||
if (offset > total_length) {
|
||||
gdb_put_packet("E00");
|
||||
return;
|
||||
}
|
||||
if (offset + length > total_length) {
|
||||
length = total_length - offset;
|
||||
}
|
||||
|
||||
g_string_printf(gdbserver_state.str_buf, "l%.*s", length,
|
||||
ts->bprm->filename + offset);
|
||||
gdb_put_strbuf();
|
||||
}
|
||||
|
||||
int gdb_target_sigtrap(void)
|
||||
{
|
||||
return TARGET_SIGTRAP;
|
||||
}
|
||||
Loading…
Reference in New Issue