--- record.c | 133 +++++++++++++++++++++++++++++++++++++++++---------------------- 1 file changed, 87 insertions(+), 46 deletions(-) --- a/record.c +++ b/record.c @@ -51,6 +51,7 @@ struct record_mem_entry { CORE_ADDR addr; int len; + int mem_entry_not_accessible; gdb_byte *val; }; @@ -275,6 +276,7 @@ record_arch_list_add_mem (CORE_ADDR addr rec->type = record_mem; rec->u.mem.addr = addr; rec->u.mem.len = len; + rec->u.mem.mem_entry_not_accessible = 0; if (target_read_memory (addr, rec->u.mem.val, len)) { @@ -412,6 +414,89 @@ record_gdb_operation_disable_set (void) return old_cleanups; } +static inline void +record_exec_entry (struct regcache *regcache, struct gdbarch *gdbarch, + struct record_entry *entry) +{ + switch (entry->type) + { + case record_reg: /* reg */ + { + gdb_byte reg[MAX_REGISTER_SIZE]; + + if (record_debug > 1) + fprintf_unfiltered (gdb_stdlog, + "Process record: record_reg %s to " + "inferior num = %d.\n", + host_address_to_string (entry), + entry->u.reg.num); + + regcache_cooked_read (regcache, entry->u.reg.num, reg); + regcache_cooked_write (regcache, entry->u.reg.num, entry->u.reg.val); + memcpy (entry->u.reg.val, reg, MAX_REGISTER_SIZE); + } + break; + + case record_mem: /* mem */ + { + if (!record_list->u.mem.mem_entry_not_accessible) + { + gdb_byte *mem = alloca (entry->u.mem.len); + + if (record_debug > 1) + fprintf_unfiltered (gdb_stdlog, + "Process record: record_mem %s to " + "inferior addr = %s len = %d.\n", + host_address_to_string (entry), + paddress (gdbarch, entry->u.mem.addr), + record_list->u.mem.len); + + if (target_read_memory (entry->u.mem.addr, mem, entry->u.mem.len)) + { + if (execution_direction == EXEC_REVERSE) + { + record_list->u.mem.mem_entry_not_accessible = 1; + if (record_debug) + warning (_("Process record: error reading memory at " + "addr = %s len = %d."), + paddress (gdbarch, entry->u.mem.addr), + entry->u.mem.len); + } + else + error (_("Process record: error reading memory at " + "addr = %s len = %d."), + paddress (gdbarch, entry->u.mem.addr), + entry->u.mem.len); + } + else + { + if (target_write_memory (entry->u.mem.addr, entry->u.mem.val, + entry->u.mem.len)) + { + if (execution_direction == EXEC_REVERSE) + { + record_list->u.mem.mem_entry_not_accessible = 1; + if (record_debug) + warning (_("Process record: error writing memory at " + "addr = %s len = %d."), + paddress (gdbarch, entry->u.mem.addr), + entry->u.mem.len); + } + else + error (_("Process record: error writing memory at " + "addr = %s len = %d."), + paddress (gdbarch, entry->u.mem.addr), + entry->u.mem.len); + } + } + + memcpy (entry->u.mem.val, mem, entry->u.mem.len); + } + } + break; + } +} + static void record_open (char *name, int from_tty) { @@ -708,53 +793,9 @@ record_wait (struct target_ops *ops, break; } - /* Set ptid, register and memory according to record_list. */ - if (record_list->type == record_reg) - { - /* reg */ - gdb_byte reg[MAX_REGISTER_SIZE]; - if (record_debug > 1) - fprintf_unfiltered (gdb_stdlog, - "Process record: record_reg %s to " - "inferior num = %d.\n", - host_address_to_string (record_list), - record_list->u.reg.num); - regcache_cooked_read (regcache, record_list->u.reg.num, reg); - regcache_cooked_write (regcache, record_list->u.reg.num, - record_list->u.reg.val); - memcpy (record_list->u.reg.val, reg, MAX_REGISTER_SIZE); - } - else if (record_list->type == record_mem) - { - /* mem */ - gdb_byte *mem = alloca (record_list->u.mem.len); - if (record_debug > 1) - fprintf_unfiltered (gdb_stdlog, - "Process record: record_mem %s to " - "inferior addr = %s len = %d.\n", - host_address_to_string (record_list), - paddress (gdbarch, record_list->u.mem.addr), - record_list->u.mem.len); - - if (target_read_memory - (record_list->u.mem.addr, mem, record_list->u.mem.len)) - error (_("Process record: error reading memory at " - "addr = %s len = %d."), - paddress (gdbarch, record_list->u.mem.addr), - record_list->u.mem.len); - - if (target_write_memory - (record_list->u.mem.addr, record_list->u.mem.val, - record_list->u.mem.len)) - error (_ - ("Process record: error writing memory at " - "addr = %s len = %d."), - paddress (gdbarch, record_list->u.mem.addr), - record_list->u.mem.len); + record_exec_entry (regcache, gdbarch, record_list); - memcpy (record_list->u.mem.val, mem, record_list->u.mem.len); - } - else + if (record_list->type == record_end) { if (record_debug > 1) fprintf_unfiltered (gdb_stdlog,