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GDB Stub: Add memory map xml

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This allows gdb to know the mapping which is mainly useful when we have MMU off and we can make reasonable assumptions about where the memory would be.
This commit is contained in:
aldelaro5 2021-12-31 10:22:23 -05:00
parent a0fe3dd822
commit f0f6e5f4ae
1 changed files with 38 additions and 1 deletions
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39
Source/Core/Core/PowerPC/GDBStub.cpp
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@ -29,6 +29,7 @@ typedef SSIZE_T ssize_t;
#include "Common/Logging/Log.h"
#include "Common/SocketContext.h"
#include "Common/StringUtil.h"
#include "Core/Config/MainSettings.h"
#include "Core/Core.h"
#include "Core/HW/CPU.h"
#include "Core/HW/Memmap.h"
@ -67,6 +68,19 @@ constexpr int MACH_O_POWERPC_750 = 9;
const s64 GDB_UPDATE_CYCLES = 100000;
const char* QUERY_XFER_TARGET = "qXfer:features:read:target.xml:";
const char* QUERY_XFER_MEMORY_MAP = "qXfer:memory-map:read::";
const char* TARGET_MEMORY_MAP_XML_NO_MMU =
"<memory-map version=\"1.0\">"
"<memory type=\"ram\" start=\"0x7E000000\" length=\"0x2000000\"/>"
"<memory type=\"ram\" start=\"0x80000000\" length=\"0x1800000\"/>"
"<memory type=\"ram\" start=\"0x90000000\" length=\"0x4000000\"/>"
"</memory-map>";
const char* TARGET_MEMORY_MAP_XML_WITH_MMU =
"<memory-map version=\"1.0\">"
"<memory type=\"ram\" start=\"0x0\" length=\"0x10000000\"/>"
"</memory-map>";
const char* target_xml = "<target version=\"1.0\">"
"<architecture>powerpc:750</architecture>"
@ -567,21 +581,44 @@ static void HandleQuery()
DEBUG_LOG_FMT(GDB_STUB, "gdb: query '{}'", CommandBufferAsString());
if (!strncmp((const char*)(s_cmd_bfr), "qAttached", strlen("qAttached")))
{
return SendReply("1");
}
if (!strcmp((const char*)(s_cmd_bfr), "qC"))
{
return SendReply("QC1");
}
if (!strcmp((const char*)(s_cmd_bfr), "qfThreadInfo"))
{
return SendReply("m1");
}
else if (!strcmp((const char*)(s_cmd_bfr), "qsThreadInfo"))
{
return SendReply("l");
}
else if (!strncmp((const char*)(s_cmd_bfr), "qThreadExtraInfo", strlen("qThreadExtraInfo")))
{
return SendReply("00");
}
else if (!strncmp((const char*)(s_cmd_bfr), "qHostInfo", strlen("qHostInfo")))
{
return WriteHostInfo();
}
else if (!strncmp((const char*)(s_cmd_bfr), "qSupported", strlen("qSupported")))
return SendReply("swbreak+;hwbreak+;qXfer:features:read+");
{
return SendReply("swbreak+;hwbreak+;qXfer:features:read+;qXfer:memory-map:read+");
}
else if (!strncmp((const char*)(s_cmd_bfr), QUERY_XFER_TARGET, strlen(QUERY_XFER_TARGET)))
{
return ProcessXFerCommand(target_xml, strlen(QUERY_XFER_TARGET));
}
else if (!strncmp((const char*)(s_cmd_bfr), QUERY_XFER_MEMORY_MAP, strlen(QUERY_XFER_MEMORY_MAP)))
{
const char* memoryMapXml = TARGET_MEMORY_MAP_XML_NO_MMU;
if (Config::Get(Config::MAIN_MMU))
memoryMapXml = TARGET_MEMORY_MAP_XML_WITH_MMU;
return ProcessXFerCommand(memoryMapXml, strlen(QUERY_XFER_MEMORY_MAP));
}
SendReply("");
}