[RFA/RFC Prec] Add process record skip 5/6 (i386-linux-tdep)

[Hui Zhu <teawater at gmail dot com>]

This is a example to add the function that need skip.

2008-08-19  Hui Zhu  <teawater@gmail.com>

	* i386-linux-tdep.c
	(i386_linux_process_record_temp_register): New function.
	(i386_linux_process_record_simple_function): New function.
	(i386_linux_process_record_memset): New function.
	(i386_linux_process_record_open): New function.
	(i386_linux_init_abi): Call set_gdbarch_process_record_open.

---
 i386-linux-tdep.c |   78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)

--- a/i386-linux-tdep.c
+++ b/i386-linux-tdep.c
@@ -389,6 +389,83 @@ i386_linux_intx80_sysenter_record (struc

   return 0;
 }
+
+static int
+i386_linux_process_record_temp_register (struct regcache *regcache)
+{
+  if (record_arch_list_add_reg (regcache, I386_EAX_REGNUM))
+    return -1;
+  if (record_arch_list_add_reg (regcache, I386_ECX_REGNUM))
+    return -1;
+  if (record_arch_list_add_reg (regcache, I386_EDX_REGNUM))
+    return -1;
+  if (record_arch_list_add_reg (regcache, I386_ESP_REGNUM))
+    return -1;
+  if (record_arch_list_add_reg (regcache, I386_EIP_REGNUM))
+    return -1;
+  if (record_arch_list_add_reg (regcache, I386_EFLAGS_REGNUM))
+    return -1;
+
+  return 0;
+}
+
+static int
+i386_linux_process_record_simple_function (struct regcache *regcache)
+{
+  if (i386_linux_process_record_temp_register (regcache))
+    return -1;
+
+  if (record_arch_list_add_end ())
+    return -1;
+
+  return 0;
+}
+
+static int
+i386_linux_process_record_memset (struct regcache *regcache)
+{
+  ULONGEST tmpulongest;
+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  gdb_byte buf[12];
+  int tmpint;
+
+  if (i386_linux_process_record_temp_register (regcache))
+    return -1;
+
+  regcache_raw_read_unsigned (regcache, I386_ESP_REGNUM, &tmpulongest);
+  tmpulongest += 4;
+  if (target_read_memory ((CORE_ADDR) tmpulongest, buf, 12))
+    {
+      if (record_debug)
+        fprintf_unfiltered (gdb_stdlog,
+                            "Process record: error reading "
+                            "memory at addr = 0x%s "
+                            "len = %d.\n",
+                            phex_nz (tmpulongest, 4), 12);
+        return -1;
+    }
+  tmpulongest = extract_unsigned_integer (buf, 4, byte_order);
+  tmpint = (int) extract_unsigned_integer (buf + 8, 4, byte_order);
+  if (record_arch_list_add_mem ((CORE_ADDR)tmpulongest, tmpint))
+    return -1;
+
+  if (record_arch_list_add_end ())
+    return -1;
+
+  return 0;
+}
+
+static void
+i386_linux_process_record_open (struct gdbarch *gdbarch)
+{
+  record_skip_entry_create (gdbarch, "printf",
+                            i386_linux_process_record_simple_function);
+  record_skip_entry_create (gdbarch, "memset",
+                            i386_linux_process_record_memset);
+  record_skip_entry_create (gdbarch, "memcpy",
+                            i386_linux_process_record_memset);
+}


 /* The register sets used in GNU/Linux ELF core-dumps are identical to
@@ -484,6 +561,7 @@ i386_linux_init_abi (struct gdbarch_info
   tdep->sc_num_regs = ARRAY_SIZE (i386_linux_sc_reg_offset);

   set_gdbarch_process_record (gdbarch, i386_process_record);
+  set_gdbarch_process_record_open (gdbarch, i386_linux_process_record_open);

   /* Initialize the i386_linux_record_tdep.  */
   /* These values are the size of the type that will be used in a system

Attachment: 5-skip-record-i386-linux.txt
Description: Text document