[PATCH 17/22] winedbg: Add support for PPC64
André Hentschel
nerv at dawncrow.de
Sun Aug 16 14:01:55 CDT 2020
From: Timothy Pearson <tpearson at raptorengineering.com>
Signed-off-by: André Hentschel <nerv at dawncrow.de>
---
programs/winedbg/Makefile.in | 1 +
programs/winedbg/be_ppc64.c | 303 ++++++++++++++++++++++++++++++++
programs/winedbg/tgt_active.c | 2 +
programs/winedbg/tgt_minidump.c | 3 +
programs/winedbg/winedbg.c | 4 +
5 files changed, 313 insertions(+)
create mode 100644 programs/winedbg/be_ppc64.c
diff --git a/programs/winedbg/Makefile.in b/programs/winedbg/Makefile.in
index ca60d566288..a809e9d955a 100644
--- a/programs/winedbg/Makefile.in
+++ b/programs/winedbg/Makefile.in
@@ -8,6 +8,7 @@ C_SRCS = \
be_arm.c \
be_arm64.c \
be_i386.c \
+ be_ppc64.c \
be_x86_64.c \
break.c \
crashdlg.c \
diff --git a/programs/winedbg/be_ppc64.c b/programs/winedbg/be_ppc64.c
new file mode 100644
index 00000000000..46d86b15bb7
--- /dev/null
+++ b/programs/winedbg/be_ppc64.c
@@ -0,0 +1,303 @@
+/*
+ * Debugger Power PC specific functions
+ *
+ * Copyright 2000-2003 Marcus Meissner
+ * 2004 Eric Pouech
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include "debugger.h"
+
+#if defined(__powerpc64__)
+
+static BOOL be_ppc_get_addr(HANDLE hThread, const dbg_ctx_t *ctx,
+ enum be_cpu_addr bca, ADDRESS64* addr)
+{
+ switch (bca)
+ {
+ case be_cpu_addr_pc:
+ return be_cpu_build_addr(hThread, ctx, addr, 0, ctx->ctx.Iar);
+ default:
+ case be_cpu_addr_stack:
+ case be_cpu_addr_frame:
+ dbg_printf("not done\n");
+ }
+ return FALSE;
+}
+
+static BOOL be_ppc_get_register_info(int regno, enum be_cpu_addr* kind)
+{
+ dbg_printf("not done\n");
+ return FALSE;
+}
+
+static void be_ppc_single_step(dbg_ctx_t *ctx, BOOL enable)
+{
+#ifndef MSR_SE
+# define MSR_SE (1<<10)
+#endif
+ if (enable) ctx->ctx.Msr |= MSR_SE;
+ else ctx->ctx.Msr &= ~MSR_SE;
+}
+
+static void be_ppc_print_context(HANDLE hThread, const dbg_ctx_t *ctx, int all_regs)
+{
+ dbg_printf("Context printing for PPC not done yet\n");
+}
+
+static void be_ppc_print_segment_info(HANDLE hThread, const dbg_ctx_t *ctx)
+{
+}
+
+static struct dbg_internal_var be_ppc_ctx[] =
+{
+ {0, NULL, 0, dbg_itype_none}
+};
+
+static BOOL be_ppc_is_step_over_insn(const void* insn)
+{
+ dbg_printf("not done\n");
+ return FALSE;
+}
+
+static BOOL be_ppc_is_function_return(const void* insn)
+{
+ dbg_printf("not done\n");
+ return FALSE;
+}
+
+static BOOL be_ppc_is_break_insn(const void* insn)
+{
+ dbg_printf("not done\n");
+ return FALSE;
+}
+
+static BOOL be_ppc_is_func_call(const void* insn, ADDRESS64* callee)
+{
+ return FALSE;
+}
+
+static BOOL be_ppc_is_jump(const void* insn, ADDRESS64* jumpee)
+{
+ return FALSE;
+}
+
+static void be_ppc_disasm_one_insn(ADDRESS64* addr, int display)
+
+{
+ dbg_printf("Disasm NIY\n");
+}
+
+static BOOL be_ppc_insert_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
+ dbg_ctx_t *ctx, enum be_xpoint_type type,
+ void* addr, unsigned long* val, unsigned size)
+{
+ unsigned long xbp;
+ SIZE_T sz;
+
+ switch (type)
+ {
+ case be_xpoint_break:
+ if (!size) return FALSE;
+ if (!pio->read(hProcess, addr, val, 4, &sz) || sz != 4) return FALSE;
+ xbp = 0x7d821008; /* 7d 82 10 08 ... in big endian */
+ if (!pio->write(hProcess, addr, &xbp, 4, &sz) || sz != 4) return FALSE;
+ break;
+ default:
+ dbg_printf("Unknown/unsupported bp type %c\n", type);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static BOOL be_ppc_remove_Xpoint(HANDLE hProcess, const struct be_process_io* pio,
+ dbg_ctx_t *ctx, enum be_xpoint_type type,
+ void* addr, unsigned long val, unsigned size)
+{
+ SIZE_T sz;
+
+ switch (type)
+ {
+ case be_xpoint_break:
+ if (!size) return FALSE;
+ if (!pio->write(hProcess, addr, &val, 4, &sz) || sz == 4) return FALSE;
+ break;
+ default:
+ dbg_printf("Unknown/unsupported bp type %c\n", type);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static BOOL be_ppc_is_watchpoint_set(const dbg_ctx_t *ctx, unsigned idx)
+{
+ dbg_printf("not done\n");
+ return FALSE;
+}
+
+static void be_ppc_clear_watchpoint(dbg_ctx_t *ctx, unsigned idx)
+{
+ dbg_printf("not done\n");
+}
+
+static int be_ppc_adjust_pc_for_break(dbg_ctx_t *ctx, BOOL way)
+{
+ dbg_printf("not done\n");
+ return 0;
+}
+
+static BOOL be_ppc_fetch_integer(const struct dbg_lvalue* lvalue, unsigned size,
+ BOOL is_signed, LONGLONG* ret)
+{
+ dbg_printf("not done\n");
+ return FALSE;
+}
+
+static BOOL be_ppc_fetch_float(const struct dbg_lvalue* lvalue, unsigned size,
+ long double* ret)
+{
+ dbg_printf("not done\n");
+ return FALSE;
+}
+
+static BOOL be_ppc_store_integer(const struct dbg_lvalue* lvalue, unsigned size,
+ BOOL is_signed, LONGLONG val)
+{
+ dbg_printf("be_ppc_store_integer: not done\n");
+ return FALSE;
+}
+
+static BOOL be_ppc_get_context(HANDLE thread, dbg_ctx_t *ctx)
+{
+ ctx->ctx.ContextFlags = CONTEXT_ALL;
+ return GetThreadContext(thread, &ctx->ctx);
+}
+
+static BOOL be_ppc_set_context(HANDLE thread, const dbg_ctx_t *ctx)
+{
+ return SetThreadContext(thread, &ctx->ctx);
+}
+
+#define REG(r,gs) {FIELD_OFFSET(CONTEXT, r), sizeof(((CONTEXT*)NULL)->r), gs}
+
+static struct gdb_register be_ppc_gdb_register_map[] = {
+ REG(Gpr0, 4),
+ REG(Gpr1, 4),
+ REG(Gpr2, 4),
+ REG(Gpr3, 4),
+ REG(Gpr4, 4),
+ REG(Gpr5, 4),
+ REG(Gpr6, 4),
+ REG(Gpr7, 4),
+ REG(Gpr8, 4),
+ REG(Gpr9, 4),
+ REG(Gpr10, 4),
+ REG(Gpr11, 4),
+ REG(Gpr12, 4),
+ REG(Gpr13, 4),
+ REG(Gpr14, 4),
+ REG(Gpr15, 4),
+ REG(Gpr16, 4),
+ REG(Gpr17, 4),
+ REG(Gpr18, 4),
+ REG(Gpr19, 4),
+ REG(Gpr20, 4),
+ REG(Gpr21, 4),
+ REG(Gpr22, 4),
+ REG(Gpr23, 4),
+ REG(Gpr24, 4),
+ REG(Gpr25, 4),
+ REG(Gpr26, 4),
+ REG(Gpr27, 4),
+ REG(Gpr28, 4),
+ REG(Gpr29, 4),
+ REG(Gpr30, 4),
+ REG(Gpr31, 4),
+ REG(Fpr0, 4),
+ REG(Fpr1, 4),
+ REG(Fpr2, 4),
+ REG(Fpr3, 4),
+ REG(Fpr4, 4),
+ REG(Fpr5, 4),
+ REG(Fpr6, 4),
+ REG(Fpr7, 4),
+ REG(Fpr8, 4),
+ REG(Fpr9, 4),
+ REG(Fpr10, 4),
+ REG(Fpr11, 4),
+ REG(Fpr12, 4),
+ REG(Fpr13, 4),
+ REG(Fpr14, 4),
+ REG(Fpr15, 4),
+ REG(Fpr16, 4),
+ REG(Fpr17, 4),
+ REG(Fpr18, 4),
+ REG(Fpr19, 4),
+ REG(Fpr20, 4),
+ REG(Fpr21, 4),
+ REG(Fpr22, 4),
+ REG(Fpr23, 4),
+ REG(Fpr24, 4),
+ REG(Fpr25, 4),
+ REG(Fpr26, 4),
+ REG(Fpr27, 4),
+ REG(Fpr28, 4),
+ REG(Fpr29, 4),
+ REG(Fpr30, 4),
+ REG(Fpr31, 4),
+
+ REG(Iar, 4),
+ REG(Msr, 4),
+ REG(Cr, 4),
+ REG(Lr, 4),
+ REG(Ctr, 4),
+ REG(Xer, 4),
+ /* FIXME: MQ is missing? FIELD_OFFSET(CONTEXT, Mq), */
+ /* see gdb/nlm/ppc.c */
+};
+
+struct backend_cpu be_ppc64 =
+{
+ IMAGE_FILE_MACHINE_POWERPC64,
+ 8,
+ be_cpu_linearize,
+ be_cpu_build_addr,
+ be_ppc_get_addr,
+ be_ppc_get_register_info,
+ be_ppc_single_step,
+ be_ppc_print_context,
+ be_ppc_print_segment_info,
+ be_ppc_ctx,
+ be_ppc_is_step_over_insn,
+ be_ppc_is_function_return,
+ be_ppc_is_break_insn,
+ be_ppc_is_func_call,
+ be_ppc_is_jump,
+ be_ppc_disasm_one_insn,
+ be_ppc_insert_Xpoint,
+ be_ppc_remove_Xpoint,
+ be_ppc_is_watchpoint_set,
+ be_ppc_clear_watchpoint,
+ be_ppc_adjust_pc_for_break,
+ be_ppc_fetch_integer,
+ be_ppc_fetch_float,
+ be_ppc_store_integer,
+ be_ppc_get_context,
+ be_ppc_set_context,
+ be_ppc_gdb_register_map,
+ ARRAY_SIZE(be_ppc_gdb_register_map),
+};
+#endif
diff --git a/programs/winedbg/tgt_active.c b/programs/winedbg/tgt_active.c
index d4e2d7d6347..0e74aae2c2c 100644
--- a/programs/winedbg/tgt_active.c
+++ b/programs/winedbg/tgt_active.c
@@ -756,6 +756,8 @@ static void output_system_info(void)
static const char platform[] = "i386";
#elif defined(__x86_64__)
static const char platform[] = "x86_64";
+#elif defined(__powerpc64__)
+ static const char platform[] = "powerpc64";
#elif defined(__arm__)
static const char platform[] = "arm";
#elif defined(__aarch64__)
diff --git a/programs/winedbg/tgt_minidump.c b/programs/winedbg/tgt_minidump.c
index 95af7a601e5..295e3e2b4d4 100644
--- a/programs/winedbg/tgt_minidump.c
+++ b/programs/winedbg/tgt_minidump.c
@@ -291,6 +291,9 @@ static enum dbg_start minidump_do_reload(struct tgt_process_minidump_data* data)
case PROCESSOR_ARCHITECTURE_PPC:
str = "PowerPC";
break;
+ case PROCESSOR_ARCHITECTURE_PPC64:
+ str = "PowerPC 64";
+ break;
case PROCESSOR_ARCHITECTURE_AMD64:
str = "X86_64";
break;
diff --git a/programs/winedbg/winedbg.c b/programs/winedbg/winedbg.c
index abad9ef9984..d840b830afa 100644
--- a/programs/winedbg/winedbg.c
+++ b/programs/winedbg/winedbg.c
@@ -281,6 +281,8 @@ struct dbg_process* dbg_get_process_h(HANDLE h)
#ifdef __i386__
extern struct backend_cpu be_i386;
+#elif defined(__powerpc64__)
+extern struct backend_cpu be_ppc64;
#elif defined(__x86_64__)
extern struct backend_cpu be_i386;
extern struct backend_cpu be_x86_64;
@@ -328,6 +330,8 @@ struct dbg_process* dbg_add_process(const struct be_process_io* pio, DWORD pid,
#ifdef __i386__
p->be_cpu = &be_i386;
+#elif defined(__powerpc64__)
+ p->be_cpu = &be_ppc64;
#elif defined(__x86_64__)
p->be_cpu = wow64 ? &be_i386 : &be_x86_64;
#elif defined(__arm__) && !defined(__ARMEB__)
--
2.25.1
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