diff options
Diffstat (limited to 'gdb/nat/windows-nat.h')
| -rw-r--r-- | gdb/nat/windows-nat.h | 125 |
1 files changed, 121 insertions, 4 deletions
diff --git a/gdb/nat/windows-nat.h b/gdb/nat/windows-nat.h index f2b5d77..2f50742 100644 --- a/gdb/nat/windows-nat.h +++ b/gdb/nat/windows-nat.h @@ -1,5 +1,5 @@ /* Internal interfaces for the Windows code - Copyright (C) 1995-2024 Free Software Foundation, Inc. + Copyright (C) 1995-2025 Free Software Foundation, Inc. This file is part of GDB. @@ -16,8 +16,8 @@ You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#ifndef NAT_WINDOWS_NAT_H -#define NAT_WINDOWS_NAT_H +#ifndef GDB_NAT_WINDOWS_NAT_H +#define GDB_NAT_WINDOWS_NAT_H #include <windows.h> #include <psapi.h> @@ -29,6 +29,12 @@ #define STATUS_WX86_BREAKPOINT 0x4000001F #define STATUS_WX86_SINGLE_STEP 0x4000001E +#ifndef CONTEXT_EXTENDED_REGISTERS +/* This macro is only defined on ia32. It only makes sense on this target, + so define it as zero if not already defined. */ +#define CONTEXT_EXTENDED_REGISTERS 0 +#endif + namespace windows_nat { @@ -250,6 +256,25 @@ struct windows_process_info const char *pid_to_exec_file (int); + template<typename Function> + auto with_context (windows_thread_info *th, Function function) + { +#ifdef __x86_64__ + if (wow64_process) + return function (th != nullptr ? &th->wow64_context : nullptr); + else +#endif + return function (th != nullptr ? &th->context : nullptr); + } + + DWORD *context_flags_ptr (windows_thread_info *th) + { + return with_context (th, [] (auto *context) + { + return &context->ContextFlags; + }); + } + private: /* Handle MS_VC_EXCEPTION when processing a stop. MS_VC_EXCEPTION is @@ -433,6 +458,98 @@ extern DeleteProcThreadAttributeList_ftype *DeleteProcThreadAttributeList; extern bool disable_randomization_available (); +/* Helper classes to get the correct ContextFlags values based on the + used type (CONTEXT or WOW64_CONTEXT). */ + +template<typename Context> +struct WindowsContext; + +template<> +struct WindowsContext<CONTEXT *> +{ + static constexpr DWORD control = CONTEXT_CONTROL; + static constexpr DWORD floating = CONTEXT_FLOATING_POINT; + static constexpr DWORD debug = CONTEXT_DEBUG_REGISTERS; + static constexpr DWORD extended = CONTEXT_EXTENDED_REGISTERS; + static constexpr DWORD full = CONTEXT_FULL; + static constexpr DWORD all = (CONTEXT_FULL + | CONTEXT_FLOATING_POINT + | CONTEXT_SEGMENTS + | CONTEXT_DEBUG_REGISTERS + | CONTEXT_EXTENDED_REGISTERS); +}; + +#ifdef __x86_64__ +template<> +struct WindowsContext<WOW64_CONTEXT *> +{ + static constexpr DWORD control = WOW64_CONTEXT_CONTROL; + static constexpr DWORD floating = WOW64_CONTEXT_FLOATING_POINT; + static constexpr DWORD debug = WOW64_CONTEXT_DEBUG_REGISTERS; + static constexpr DWORD extended = WOW64_CONTEXT_EXTENDED_REGISTERS; + static constexpr DWORD full = WOW64_CONTEXT_FULL; + static constexpr DWORD all = WOW64_CONTEXT_ALL; +}; +#endif + +/* Overloaded helper functions to call the correct function based on the used + type (CONTEXT or WOW64_CONTEXT). */ + +static inline BOOL +get_thread_context (HANDLE h, CONTEXT *context) +{ + return GetThreadContext (h, context); +} + +static inline BOOL +set_thread_context (HANDLE h, CONTEXT *context) +{ + return SetThreadContext (h, context); +} + +static inline BOOL +get_thread_selector_entry (CONTEXT *, HANDLE thread, DWORD sel, + LDT_ENTRY *info) +{ + return GetThreadSelectorEntry (thread, sel, info); +} + +static inline BOOL +enum_process_modules (CONTEXT *, HANDLE process, + HMODULE *modules, DWORD size, LPDWORD needed) +{ + return EnumProcessModules (process, modules, size, needed); +} + +#ifdef __x86_64__ +static inline BOOL +get_thread_context (HANDLE h, WOW64_CONTEXT *context) +{ + return Wow64GetThreadContext (h, context); +} + +static inline BOOL +set_thread_context (HANDLE h, WOW64_CONTEXT *context) +{ + return Wow64SetThreadContext (h, context); +} + +static inline BOOL +get_thread_selector_entry (WOW64_CONTEXT *, HANDLE thread, DWORD sel, + LDT_ENTRY *info) +{ + return Wow64GetThreadSelectorEntry (thread, sel, info); +} + +static inline BOOL +enum_process_modules (WOW64_CONTEXT *, HANDLE process, + HMODULE *modules, DWORD size, LPDWORD needed) +{ + return EnumProcessModulesEx (process, modules, size, needed, + LIST_MODULES_32BIT); +} +#endif + /* Load any functions which may not be available in ancient versions of Windows. */ @@ -440,4 +557,4 @@ extern bool initialize_loadable (); } -#endif +#endif /* GDB_NAT_WINDOWS_NAT_H */ |