LowLevel/Luma3DS-3GX
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GDB: add 'catchsvc' command to catch svc with IDA

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Usage:
   - 'catchsvc 0' : Don't catch svcs
   - 'catchsvc 1' : Catch all svcs
   - 'catchsvc 1;19;24;32;' : Only catch svc 0x19, svc 0x24 and svc 0x32
This commit is contained in:
Nanquitas 2018-11-15 13:44:45 +01:00
parent 2182742708
commit 1ae01c2406
2 changed files with 37 additions and 0 deletions
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1
sysmodules/rosalina/include/gdb/remote_command.h
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@ -39,5 +39,6 @@ GDB_DECLARE_REMOTE_COMMAND_HANDLER(GetMmuConfig);
GDB_DECLARE_REMOTE_COMMAND_HANDLER(GetMemRegions);
GDB_DECLARE_REMOTE_COMMAND_HANDLER(FlushCaches);
GDB_DECLARE_REMOTE_COMMAND_HANDLER(ToggleExternalMemoryAccess);
GDB_DECLARE_REMOTE_COMMAND_HANDLER(CatchSvc);
GDB_DECLARE_QUERY_HANDLER(Rcmd);

36
sysmodules/rosalina/source/gdb/remote_command.c
View File

@ -45,6 +45,7 @@ struct
{ "getmemregions" , GDB_REMOTE_COMMAND_HANDLER(GetMemRegions) },
{ "flushcaches" , GDB_REMOTE_COMMAND_HANDLER(FlushCaches) },
{ "toggleextmemaccess", GDB_REMOTE_COMMAND_HANDLER(ToggleExternalMemoryAccess) },
{ "catchsvc" , GDB_REMOTE_COMMAND_HANDLER(CatchSvc) },
};
static const char *GDB_SkipSpaces(const char *pos)
@ -478,6 +479,41 @@ GDB_DECLARE_REMOTE_COMMAND_HANDLER(ToggleExternalMemoryAccess)
return GDB_SendHexPacket(ctx, outbuf, n);
}
GDB_DECLARE_REMOTE_COMMAND_HANDLER(CatchSvc)
{
if(ctx->commandData[0] == '0')
{
memset(ctx->svcMask, 0, 32);
return R_SUCCEEDED(svcKernelSetState(0x10002, ctx->pid, false)) ? GDB_ReplyOk(ctx) : GDB_ReplyErrno(ctx, EPERM);
}
else if(ctx->commandData[0] == '1')
{
if(ctx->commandData[1] == ';')
{
u32 id;
const char *pos = ctx->commandData + 1;
memset(ctx->svcMask, 0, 32);
do
{
pos = GDB_ParseHexIntegerList(&id, pos + 1, 1, ';');
if(pos == NULL)
return GDB_ReplyErrno(ctx, EILSEQ);
if(id < 0xFE)
ctx->svcMask[id / 32] |= 1 << (31 - (id % 32));
}
while(*pos != 0);
}
else
memset(ctx->svcMask, 0xFF, 32);
return R_SUCCEEDED(svcKernelSetState(0x10002, ctx->pid, true, ctx->svcMask)) ? GDB_ReplyOk(ctx) : GDB_ReplyErrno(ctx, EPERM);
}
else
return GDB_ReplyErrno(ctx, EILSEQ);
}
GDB_DECLARE_QUERY_HANDLER(Rcmd)
{
char commandData[GDB_BUF_LEN / 2 + 1];