/* Shared utility routines for GDB to interact with agent.
- Copyright (C) 2009-2014 Free Software Foundation, Inc.
+ Copyright (C) 2009-2019 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#ifdef GDBSERVER
-#include "server.h"
-#else
-#include "defs.h"
-#include "target.h"
-#include "inferior.h" /* for non_stop */
-#endif
-
-#include <string.h>
+#include "common-defs.h"
+#include "target/target.h"
+#include "common/symbol.h"
#include <unistd.h>
-#include "agent.h"
#include "filestuff.h"
+#define IPA_SYM_STRUCT_NAME ipa_sym_addresses_common
+#include "agent.h"
+
int debug_agent = 0;
-#ifdef GDBSERVER
-#define DEBUG_AGENT(fmt, args...) \
- if (debug_agent) \
- fprintf (stderr, fmt, ##args);
-#else
-#define DEBUG_AGENT(fmt, args...) \
- if (debug_agent) \
- fprintf_unfiltered (gdb_stdlog, fmt, ##args);
-#endif
+/* A stdarg wrapper for debug_vprintf. */
+
+static void ATTRIBUTE_PRINTF (1, 2)
+debug_agent_printf (const char *fmt, ...)
+{
+ va_list ap;
+
+ if (!debug_agent)
+ return;
+ va_start (ap, fmt);
+ debug_vprintf (fmt, ap);
+ va_end (ap);
+}
+
+#define DEBUG_AGENT debug_agent_printf
/* Global flag to determine using agent or not. */
int use_agent = 0;
/* Addresses of in-process agent's symbols both GDB and GDBserver cares
about. */
-struct ipa_sym_addresses
+struct ipa_sym_addresses_common
{
CORE_ADDR addr_helper_thread_id;
CORE_ADDR addr_cmd_buf;
/* Cache of the helper thread id. FIXME: this global should be made
per-process. */
-static unsigned int helper_thread_id = 0;
+static uint32_t helper_thread_id = 0;
static struct
{
const char *name;
int offset;
- int required;
} symbol_list[] = {
IPA_SYM(helper_thread_id),
IPA_SYM(cmd_buf),
IPA_SYM(capability),
};
-static struct ipa_sym_addresses ipa_sym_addrs;
+static struct ipa_sym_addresses_common ipa_sym_addrs;
static int all_agent_symbols_looked_up = 0;
{
CORE_ADDR *addrp =
(CORE_ADDR *) ((char *) &ipa_sym_addrs + symbol_list[i].offset);
-#ifdef GDBSERVER
+ struct objfile *objfile = (struct objfile *) arg;
- if (look_up_one_symbol (symbol_list[i].name, addrp, 1) == 0)
-#else
- struct minimal_symbol *sym =
- lookup_minimal_symbol (symbol_list[i].name, NULL,
- (struct objfile *) arg);
-
- if (sym != NULL)
- *addrp = MSYMBOL_VALUE_ADDRESS (sym);
- else
-#endif
+ if (find_minimal_symbol_address (symbol_list[i].name, addrp,
+ objfile) != 0)
{
DEBUG_AGENT ("symbol `%s' not found\n", symbol_list[i].name);
return -1;
{
if (helper_thread_id == 0)
{
-#ifdef GDBSERVER
- if (read_inferior_memory (ipa_sym_addrs.addr_helper_thread_id,
- (unsigned char *) &helper_thread_id,
- sizeof helper_thread_id))
-#else
- enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
- gdb_byte buf[4];
-
- if (target_read_memory (ipa_sym_addrs.addr_helper_thread_id,
- buf, sizeof buf) == 0)
- helper_thread_id = extract_unsigned_integer (buf, sizeof buf,
- byte_order);
- else
-#endif
- {
- warning (_("Error reading helper thread's id in lib"));
- }
+ if (target_read_uint32 (ipa_sym_addrs.addr_helper_thread_id,
+ &helper_thread_id))
+ warning (_("Error reading helper thread's id in lib"));
}
return helper_thread_id;
{
int fd;
int tid = agent_get_helper_thread_id ();
- ptid_t ptid = ptid_build (pid, tid, 0);
+ ptid_t ptid = ptid_t (pid, tid, 0);
-#ifdef GDBSERVER
- int ret = write_inferior_memory (ipa_sym_addrs.addr_cmd_buf,
- (const unsigned char *) cmd, len);
-#else
int ret = target_write_memory (ipa_sym_addrs.addr_cmd_buf,
(gdb_byte *) cmd, len);
-#endif
if (ret != 0)
{
DEBUG_AGENT ("agent: resumed helper thread\n");
/* Resume helper thread. */
-#ifdef GDBSERVER
-{
- struct thread_resume resume_info;
-
- resume_info.thread = ptid;
- resume_info.kind = resume_continue;
- resume_info.sig = GDB_SIGNAL_0;
- (*the_target->resume) (&resume_info, 1);
-}
-#else
- target_resume (ptid, 0, GDB_SIGNAL_0);
-#endif
+ target_continue_no_signal (ptid);
fd = gdb_connect_sync_socket (pid);
if (fd >= 0)
{
char buf[1] = "";
- int ret;
DEBUG_AGENT ("agent: signalling helper thread\n");
return -1;
/* Need to read response with the inferior stopped. */
- if (!ptid_equal (ptid, null_ptid))
+ if (ptid != null_ptid)
{
- struct target_waitstatus status;
- int was_non_stop = non_stop;
/* Stop thread PTID. */
DEBUG_AGENT ("agent: stop helper thread\n");
-#ifdef GDBSERVER
- {
- struct thread_resume resume_info;
-
- resume_info.thread = ptid;
- resume_info.kind = resume_stop;
- resume_info.sig = GDB_SIGNAL_0;
- (*the_target->resume) (&resume_info, 1);
- }
-
- non_stop = 1;
- mywait (ptid, &status, 0, 0);
-#else
- non_stop = 1;
- target_stop (ptid);
-
- memset (&status, 0, sizeof (status));
- target_wait (ptid, &status, 0);
-#endif
- non_stop = was_non_stop;
+ target_stop_and_wait (ptid);
}
if (fd >= 0)
{
-#ifdef GDBSERVER
- if (read_inferior_memory (ipa_sym_addrs.addr_cmd_buf,
- (unsigned char *) cmd, IPA_CMD_BUF_SIZE))
-#else
if (target_read_memory (ipa_sym_addrs.addr_cmd_buf, (gdb_byte *) cmd,
IPA_CMD_BUF_SIZE))
-#endif
{
warning (_("Error reading command response"));
return -1;
}
/* Each bit of it stands for a capability of agent. */
-static unsigned int agent_capability = 0;
+static uint32_t agent_capability = 0;
/* Return true if agent has capability AGENT_CAP, otherwise return false. */
{
if (agent_capability == 0)
{
-#ifdef GDBSERVER
- if (read_inferior_memory (ipa_sym_addrs.addr_capability,
- (unsigned char *) &agent_capability,
- sizeof agent_capability))
-#else
- enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
- gdb_byte buf[4];
-
- if (target_read_memory (ipa_sym_addrs.addr_capability,
- buf, sizeof buf) == 0)
- agent_capability = extract_unsigned_integer (buf, sizeof buf,
- byte_order);
- else
-#endif
+ if (target_read_uint32 (ipa_sym_addrs.addr_capability,
+ &agent_capability))
warning (_("Error reading capability of agent"));
}
return agent_capability & agent_capa;
projects / deliverable / binutils-gdb.git / blobdiff