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-rw-r--r--gdbserver/win32-i386-low.cc171
1 files changed, 138 insertions, 33 deletions
diff --git a/gdbserver/win32-i386-low.cc b/gdbserver/win32-i386-low.cc
index 48893af..389ec49 100644
--- a/gdbserver/win32-i386-low.cc
+++ b/gdbserver/win32-i386-low.cc
@@ -80,18 +80,40 @@ win32_get_current_dr (int dr)
win32_require_context (th);
+#ifdef __x86_64__
+#define RET_DR(DR) \
+ case DR: \
+ return th->wow64_context.Dr ## DR
+
+ if (wow64_process)
+ {
+ switch (dr)
+ {
+ RET_DR (0);
+ RET_DR (1);
+ RET_DR (2);
+ RET_DR (3);
+ RET_DR (6);
+ RET_DR (7);
+ }
+ }
+ else
+#undef RET_DR
+#endif
#define RET_DR(DR) \
case DR: \
return th->context.Dr ## DR
- switch (dr)
{
- RET_DR (0);
- RET_DR (1);
- RET_DR (2);
- RET_DR (3);
- RET_DR (6);
- RET_DR (7);
+ switch (dr)
+ {
+ RET_DR (0);
+ RET_DR (1);
+ RET_DR (2);
+ RET_DR (3);
+ RET_DR (6);
+ RET_DR (7);
+ }
}
#undef RET_DR
@@ -219,12 +241,27 @@ i386_get_thread_context (windows_thread_info *th)
static DWORD extended_registers = CONTEXT_EXTENDED_REGISTERS;
again:
- th->context.ContextFlags = (CONTEXT_FULL
- | CONTEXT_FLOATING_POINT
- | CONTEXT_DEBUG_REGISTERS
- | extended_registers);
+#ifdef __x86_64__
+ if (wow64_process)
+ th->wow64_context.ContextFlags = (CONTEXT_FULL
+ | CONTEXT_FLOATING_POINT
+ | CONTEXT_DEBUG_REGISTERS
+ | extended_registers);
+ else
+#endif
+ th->context.ContextFlags = (CONTEXT_FULL
+ | CONTEXT_FLOATING_POINT
+ | CONTEXT_DEBUG_REGISTERS
+ | extended_registers);
- if (!GetThreadContext (th->h, &th->context))
+ BOOL ret;
+#ifdef __x86_64__
+ if (wow64_process)
+ ret = win32_Wow64GetThreadContext (th->h, &th->wow64_context);
+ else
+#endif
+ ret = GetThreadContext (th->h, &th->context);
+ if (!ret)
{
DWORD e = GetLastError ();
@@ -247,13 +284,28 @@ i386_prepare_to_resume (windows_thread_info *th)
win32_require_context (th);
- th->context.Dr0 = dr->dr_mirror[0];
- th->context.Dr1 = dr->dr_mirror[1];
- th->context.Dr2 = dr->dr_mirror[2];
- th->context.Dr3 = dr->dr_mirror[3];
- /* th->context.Dr6 = dr->dr_status_mirror;
- FIXME: should we set dr6 also ?? */
- th->context.Dr7 = dr->dr_control_mirror;
+#ifdef __x86_64__
+ if (wow64_process)
+ {
+ th->wow64_context.Dr0 = dr->dr_mirror[0];
+ th->wow64_context.Dr1 = dr->dr_mirror[1];
+ th->wow64_context.Dr2 = dr->dr_mirror[2];
+ th->wow64_context.Dr3 = dr->dr_mirror[3];
+ /* th->wow64_context.Dr6 = dr->dr_status_mirror;
+ FIXME: should we set dr6 also ?? */
+ th->wow64_context.Dr7 = dr->dr_control_mirror;
+ }
+ else
+#endif
+ {
+ th->context.Dr0 = dr->dr_mirror[0];
+ th->context.Dr1 = dr->dr_mirror[1];
+ th->context.Dr2 = dr->dr_mirror[2];
+ th->context.Dr3 = dr->dr_mirror[3];
+ /* th->context.Dr6 = dr->dr_status_mirror;
+ FIXME: should we set dr6 also ?? */
+ th->context.Dr7 = dr->dr_control_mirror;
+ }
th->debug_registers_changed = false;
}
@@ -268,11 +320,14 @@ i386_thread_added (windows_thread_info *th)
static void
i386_single_step (windows_thread_info *th)
{
- th->context.EFlags |= FLAG_TRACE_BIT;
+#ifdef __x86_64__
+ if (wow64_process)
+ th->wow64_context.EFlags |= FLAG_TRACE_BIT;
+ else
+#endif
+ th->context.EFlags |= FLAG_TRACE_BIT;
}
-#ifndef __x86_64__
-
/* An array of offset mappings into a Win32 Context structure.
This is a one-to-one mapping which is indexed by gdb's register
numbers. It retrieves an offset into the context structure where
@@ -280,8 +335,12 @@ i386_single_step (windows_thread_info *th)
An offset value of -1 indicates that Win32 does not provide this
register in it's CONTEXT structure. In this case regptr will return
a pointer into a dummy register. */
+#ifdef __x86_64__
+#define context_offset(x) (offsetof (WOW64_CONTEXT, x))
+#else
#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
-static const int mappings[] = {
+#endif
+static const int i386_mappings[] = {
context_offset (Eax),
context_offset (Ecx),
context_offset (Edx),
@@ -328,10 +387,10 @@ static const int mappings[] = {
};
#undef context_offset
-#else /* __x86_64__ */
+#ifdef __x86_64__
#define context_offset(x) (offsetof (CONTEXT, x))
-static const int mappings[] =
+static const int amd64_mappings[] =
{
context_offset (Rax),
context_offset (Rbx),
@@ -402,7 +461,21 @@ static void
i386_fetch_inferior_register (struct regcache *regcache,
windows_thread_info *th, int r)
{
- char *context_offset = (char *) &th->context + mappings[r];
+ const int *mappings;
+#ifdef __x86_64__
+ if (!wow64_process)
+ mappings = amd64_mappings;
+ else
+#endif
+ mappings = i386_mappings;
+
+ char *context_offset;
+#ifdef __x86_64__
+ if (wow64_process)
+ context_offset = (char *) &th->wow64_context + mappings[r];
+ else
+#endif
+ context_offset = (char *) &th->context + mappings[r];
long l;
if (r == FCS_REGNUM)
@@ -424,7 +497,22 @@ static void
i386_store_inferior_register (struct regcache *regcache,
windows_thread_info *th, int r)
{
- char *context_offset = (char *) &th->context + mappings[r];
+ const int *mappings;
+#ifdef __x86_64__
+ if (!wow64_process)
+ mappings = amd64_mappings;
+ else
+#endif
+ mappings = i386_mappings;
+
+ char *context_offset;
+#ifdef __x86_64__
+ if (wow64_process)
+ context_offset = (char *) &th->wow64_context + mappings[r];
+ else
+#endif
+ context_offset = (char *) &th->context + mappings[r];
+
collect_register (regcache, r, context_offset);
}
@@ -439,15 +527,32 @@ i386_arch_setup (void)
#ifdef __x86_64__
tdesc = amd64_create_target_description (X86_XSTATE_SSE_MASK, false,
false, false);
- const char **expedite_regs = amd64_expedite_regs;
-#else
+ init_target_desc (tdesc, amd64_expedite_regs);
+ win32_tdesc = tdesc;
+#endif
+
tdesc = i386_create_target_description (X86_XSTATE_SSE_MASK, false, false);
- const char **expedite_regs = i386_expedite_regs;
+ init_target_desc (tdesc, i386_expedite_regs);
+#ifdef __x86_64__
+ wow64_win32_tdesc = tdesc;
+#else
+ win32_tdesc = tdesc;
#endif
+}
- init_target_desc (tdesc, expedite_regs);
+/* Implement win32_target_ops "num_regs" method. */
- win32_tdesc = tdesc;
+static int
+i386_win32_num_regs (void)
+{
+ int num_regs;
+#ifdef __x86_64__
+ if (!wow64_process)
+ num_regs = sizeof (amd64_mappings) / sizeof (amd64_mappings[0]);
+ else
+#endif
+ num_regs = sizeof (i386_mappings) / sizeof (i386_mappings[0]);
+ return num_regs;
}
/* Implement win32_target_ops "get_pc" method. */
@@ -496,7 +601,7 @@ i386_win32_set_pc (struct regcache *regcache, CORE_ADDR pc)
struct win32_target_ops the_low_target = {
i386_arch_setup,
- sizeof (mappings) / sizeof (mappings[0]),
+ i386_win32_num_regs,
i386_initial_stuff,
i386_get_thread_context,
i386_prepare_to_resume,
generated by cgit v1.1 at 2024-07-28 15:09:59 +0000