FreeChainXenon/binutils-gdb
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Implement qXfer:exec-file:read in gdbserver

Browse source 
This commit implements the "qXfer:exec-file:read" packet in gdbserver.

gdb/gdbserver/ChangeLog:

	* target.h (struct target_ops) <pid_to_exec_file>: New field.
	* linux-low.c (linux_target_ops): Initialize pid_to_exec_file.
	* server.c (handle_qxfer_exec_file): New function.
	(qxfer_packets): Add exec-file entry.
	(handle_query): Report qXfer:exec-file:read as supported packet.
This commit is contained in:
Gary Benson 2015-04-17 09:47:30 +01:00
parent c78fa86a21
commit e57f1de3b3
4 changed files with 57 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

40
gdb/gdbserver/server.c
View file

@ -1137,6 +1137,42 @@ handle_qxfer_auxv (const char *annex,
return (*the_target->read_auxv) (offset, readbuf, len);
}
/* Handle qXfer:exec-file:read. */
static int
handle_qxfer_exec_file (const char *const_annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, LONGEST len)
{
char *annex, *file;
ULONGEST pid;
int total_len;
if (the_target->pid_to_exec_file == NULL || writebuf != NULL)
return -2;
annex = alloca (strlen (const_annex) + 1);
strcpy (annex, const_annex);
annex = unpack_varlen_hex (annex, &pid);
if (annex[0] != '\0' || pid == 0)
return -1;
file = (*the_target->pid_to_exec_file) (pid);
if (file == NULL)
return -1;
total_len = strlen (file);
if (offset > total_len)
return -1;
if (offset + len > total_len)
len = total_len - offset;
memcpy (readbuf, file + offset, len);
return len;
}
/* Handle qXfer:features:read. */
static int
@ -1638,6 +1674,7 @@ static const struct qxfer qxfer_packets[] =
{ "auxv", handle_qxfer_auxv },
{ "btrace", handle_qxfer_btrace },
{ "btrace-conf", handle_qxfer_btrace_conf },
{ "exec-file", handle_qxfer_exec_file},
{ "fdpic", handle_qxfer_fdpic},
{ "features", handle_qxfer_features },
{ "libraries", handle_qxfer_libraries },
@ -2082,6 +2119,9 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p)
if (target_supports_stopped_by_hw_breakpoint ())
strcat (own_buf, ";hwbreak+");
if (the_target->pid_to_exec_file != NULL)
strcat (own_buf, ";qXfer:exec-file:read+");
return;
}