Commit 978efd6aac65bc1e025472859eb738839425318b

Authored by pbrook
1 parent e6de1bad

Respond to qOffsets gdb packet (for debugging bFLT binaries).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1986 c046a42c-6fe2-441c-8c8c-71466251a162
gdbstub.c
... ... @@ -17,6 +17,7 @@
17 17 * License along with this library; if not, write to the Free Software
18 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 19 */
  20 +#include "config.h"
20 21 #ifdef CONFIG_USER_ONLY
21 22 #include <stdlib.h>
22 23 #include <stdio.h>
... ... @@ -24,6 +25,7 @@
24 25 #include <string.h>
25 26 #include <errno.h>
26 27 #include <unistd.h>
  28 +#include <fcntl.h>
27 29  
28 30 #include "qemu.h"
29 31 #else
... ... @@ -680,6 +682,18 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
680 682 goto breakpoint_error;
681 683 }
682 684 break;
  685 +#ifdef CONFIG_USER_ONLY
  686 + case 'q':
  687 + if (strncmp(p, "Offsets", 7) == 0) {
  688 + TaskState *ts = env->opaque;
  689 +
  690 + sprintf(buf, "Text=%x;Data=%x;Bss=%x", ts->info->code_offset,
  691 + ts->info->data_offset, ts->info->data_offset);
  692 + put_packet(s, buf);
  693 + break;
  694 + }
  695 + /* Fall through. */
  696 +#endif
683 697 default:
684 698 // unknown_command:
685 699 /* put empty packet */
... ...
linux-user/flatload.c
... ... @@ -783,6 +783,9 @@ int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
783 783 info->start_brk = libinfo[0].start_brk;
784 784 info->start_stack = sp;
785 785 info->entry = start_addr;
  786 + info->code_offset = info->start_code;
  787 + info->data_offset = info->start_data - libinfo[0].text_len;
  788 +
786 789 DBG_FLT("start_thread(entry=0x%x, start_stack=0x%x)\n",
787 790 (int)info->entry, (int)info->start_stack);
788 791  
... ...
linux-user/main.c
... ... @@ -1541,6 +1541,7 @@ int main(int argc, char **argv)
1541 1541 memset(ts, 0, sizeof(TaskState));
1542 1542 env->opaque = ts;
1543 1543 ts->used = 1;
  1544 + ts->info = info;
1544 1545 env->user_mode_only = 1;
1545 1546  
1546 1547 #if defined(TARGET_I386)
... ...
linux-user/qemu.h
... ... @@ -27,6 +27,8 @@ struct image_info {
27 27 unsigned long rss;
28 28 unsigned long start_stack;
29 29 unsigned long entry;
  30 + target_ulong code_offset;
  31 + target_ulong data_offset;
30 32 int personality;
31 33 };
32 34  
... ... @@ -73,6 +75,7 @@ typedef struct TaskState {
73 75 uint32_t v86mask;
74 76 #endif
75 77 int used; /* non zero if used */
  78 + struct image_info *info;
76 79 uint8_t stack[0];
77 80 } __attribute__((aligned(16))) TaskState;
78 81  
... ...