[PATCH] Add type for $_tlb->process_environment_block->process_parameters
Hannes Domani via gdb-patches
gdb-patches@sourceware.org
Mon Dec 23 16:10:00 GMT 2019
The type then looks like this:
(gdb) pt $_tlb->process_environment_block->process_parameters
type = struct rtl_user_process_parameters {
DWORD32 maximum_length;
DWORD32 length;
DWORD32 flags;
DWORD32 debug_flags;
void *console_handle;
DWORD32 console_flags;
void *standard_input;
void *standard_output;
void *standard_error;
unicode_string current_directory;
void *current_directory_handle;
unicode_string dll_path;
unicode_string image_path_name;
unicode_string command_line;
void *environment;
DWORD32 starting_x;
DWORD32 starting_y;
DWORD32 count_x;
DWORD32 count_y;
DWORD32 count_chars_x;
DWORD32 count_chars_y;
DWORD32 fill_attribute;
DWORD32 window_flags;
DWORD32 show_window_flags;
unicode_string window_title;
unicode_string desktop_info;
unicode_string shell_info;
unicode_string runtime_data;
} *
It's mainly useful to get the current directory, or the full command line:
(gdb) p $_tlb->process_environment_block->process_parameters->current_directory
$1 = {
length = 26,
maximum_length = 520,
buffer = 0xe36c8 L"C:\\src\\tests\\"
}
(gdb) p $_tlb->process_environment_block->process_parameters->command_line
$2 = {
length = 94,
maximum_length = 96,
buffer = 0xe32aa L"\"C:\\gdb\\build64\\gdb-git\\gdb\\gdb.exe\" access.exe"
}
gdb/ChangeLog:
2019-12-23 Hannes Domani <ssbssa@yahoo.de>
* windows-tdep.c (windows_get_tlb_type):
Add rtl_user_process_parameters type.
---
gdb/windows-tdep.c | 65 +++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 64 insertions(+), 1 deletion(-)
diff --git a/gdb/windows-tdep.c b/gdb/windows-tdep.c
index bb69a79996..83a80f2f80 100644
--- a/gdb/windows-tdep.c
+++ b/gdb/windows-tdep.c
@@ -114,6 +114,8 @@ windows_get_tlb_type (struct gdbarch *gdbarch)
struct type *peb_type, *peb_ptr_type, *list_type;
struct type *module_list_ptr_type;
struct type *tib_type, *seh_type, *tib_ptr_type, *seh_ptr_type;
+ struct type *word_type, *wchar_type, *wchar_ptr_type;
+ struct type *uni_str_type, *rupp_type, *rupp_ptr_type;
/* Do not rebuild type if same gdbarch as last time. */
if (last_tlb_type && last_gdbarch == gdbarch)
@@ -123,7 +125,15 @@ windows_get_tlb_type (struct gdbarch *gdbarch)
1, "DWORD_PTR");
dword32_type = arch_integer_type (gdbarch, 32,
1, "DWORD32");
+ word_type = arch_integer_type (gdbarch, 16,
+ 1, "WORD");
+ wchar_type = arch_integer_type (gdbarch, 16,
+ 1, "wchar_t");
void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
+ wchar_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
+ TYPE_TARGET_TYPE (wchar_ptr_type) = wchar_type;
/* list entry */
@@ -168,6 +178,59 @@ windows_get_tlb_type (struct gdbarch *gdbarch)
NULL);
TYPE_TARGET_TYPE (peb_ldr_ptr_type) = peb_ldr_type;
+ /* struct UNICODE_STRING */
+ uni_str_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (uni_str_type) = xstrdup ("unicode_string");
+
+ append_composite_type_field (uni_str_type, "length", word_type);
+ append_composite_type_field (uni_str_type, "maximum_length", word_type);
+ append_composite_type_field_aligned (uni_str_type, "buffer",
+ wchar_ptr_type,
+ TYPE_LENGTH (wchar_ptr_type));
+
+ /* struct _RTL_USER_PROCESS_PARAMETERS */
+ rupp_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
+ TYPE_NAME (rupp_type) = xstrdup ("rtl_user_process_parameters");
+
+ append_composite_type_field (rupp_type, "maximum_length", dword32_type);
+ append_composite_type_field (rupp_type, "length", dword32_type);
+ append_composite_type_field (rupp_type, "flags", dword32_type);
+ append_composite_type_field (rupp_type, "debug_flags", dword32_type);
+ append_composite_type_field (rupp_type, "console_handle", void_ptr_type);
+ append_composite_type_field (rupp_type, "console_flags", dword32_type);
+ append_composite_type_field_aligned (rupp_type, "standard_input",
+ void_ptr_type,
+ TYPE_LENGTH (void_ptr_type));
+ append_composite_type_field (rupp_type, "standard_output", void_ptr_type);
+ append_composite_type_field (rupp_type, "standard_error", void_ptr_type);
+ append_composite_type_field (rupp_type, "current_directory", uni_str_type);
+ append_composite_type_field (rupp_type, "current_directory_handle",
+ void_ptr_type);
+ append_composite_type_field (rupp_type, "dll_path", uni_str_type);
+ append_composite_type_field (rupp_type, "image_path_name", uni_str_type);
+ append_composite_type_field (rupp_type, "command_line", uni_str_type);
+ append_composite_type_field (rupp_type, "environment", void_ptr_type);
+ append_composite_type_field (rupp_type, "starting_x", dword32_type);
+ append_composite_type_field (rupp_type, "starting_y", dword32_type);
+ append_composite_type_field (rupp_type, "count_x", dword32_type);
+ append_composite_type_field (rupp_type, "count_y", dword32_type);
+ append_composite_type_field (rupp_type, "count_chars_x", dword32_type);
+ append_composite_type_field (rupp_type, "count_chars_y", dword32_type);
+ append_composite_type_field (rupp_type, "fill_attribute", dword32_type);
+ append_composite_type_field (rupp_type, "window_flags", dword32_type);
+ append_composite_type_field (rupp_type, "show_window_flags", dword32_type);
+ append_composite_type_field_aligned (rupp_type, "window_title",
+ uni_str_type,
+ TYPE_LENGTH (void_ptr_type));
+ append_composite_type_field (rupp_type, "desktop_info", uni_str_type);
+ append_composite_type_field (rupp_type, "shell_info", uni_str_type);
+ append_composite_type_field (rupp_type, "runtime_data", uni_str_type);
+
+ rupp_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
+ TYPE_TARGET_TYPE (rupp_ptr_type) = rupp_type;
+
/* struct process environment block */
peb_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
@@ -178,7 +241,7 @@ windows_get_tlb_type (struct gdbarch *gdbarch)
append_composite_type_field (peb_type, "mutant", void_ptr_type);
append_composite_type_field (peb_type, "image_base_address", void_ptr_type);
append_composite_type_field (peb_type, "ldr", peb_ldr_ptr_type);
- append_composite_type_field (peb_type, "process_parameters", void_ptr_type);
+ append_composite_type_field (peb_type, "process_parameters", rupp_ptr_type);
append_composite_type_field (peb_type, "sub_system_data", void_ptr_type);
append_composite_type_field (peb_type, "process_heap", void_ptr_type);
append_composite_type_field (peb_type, "fast_peb_lock", void_ptr_type);
--
2.24.1
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