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base: adding queryAttached and querySymbol to GDB

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In some cases/version these queries might be needed
to make the remote GDB connect correctly to the stub.

Change-Id: I98cdc9b4a952b4dc64f9357e6148af6e3351ef92
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/63530
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Quentin Forcioli
2022-08-12 15:44:54 +02:00
parent 3e43603dcc
commit eeaeee15aa
2 changed files with 23 additions and 0 deletions
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21
src/base/remote_gdb.cc
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@@ -1299,8 +1299,10 @@ splitAt(std::string str, const char * const delim)
std::map<std::string, BaseRemoteGDB::QuerySetCommand>
BaseRemoteGDB::queryMap = {
{ "C", { &BaseRemoteGDB::queryC } },
{ "Attached", { &BaseRemoteGDB::queryAttached} },
{ "Supported", { &BaseRemoteGDB::querySupported, ";" } },
{ "Xfer", { &BaseRemoteGDB::queryXfer } },
{ "Symbol", { &BaseRemoteGDB::querySymbol ,":" } },
{ "fThreadInfo", { &BaseRemoteGDB::queryFThreadInfo } },
{ "sThreadInfo", { &BaseRemoteGDB::querySThreadInfo } },
};
@@ -1364,6 +1366,25 @@ BaseRemoteGDB::queryXfer(QuerySetCommand::Context &ctx)
encodeXferResponse(content, encoded, offset, length);
send(encoded);
}
void
BaseRemoteGDB::querySymbol(QuerySetCommand::Context &ctx)
{
//The target does not need to look up any (more) symbols.
send("OK");
}
void
BaseRemoteGDB::queryAttached(QuerySetCommand::Context &ctx)
{
std::string pid="";
if (!ctx.args.empty() && !ctx.args[0].empty()){
pid=ctx.args[0];
}
DPRINTF(GDBMisc, "QAttached : pid=%s\n",pid);
//The remote server is attached to an existing process.
send("1");
}
void
BaseRemoteGDB::queryFThreadInfo(QuerySetCommand::Context &ctx)

2
src/base/remote_gdb.hh
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@@ -426,6 +426,8 @@ class BaseRemoteGDB
void queryC(QuerySetCommand::Context &ctx);
void querySupported(QuerySetCommand::Context &ctx);
void queryXfer(QuerySetCommand::Context &ctx);
void querySymbol(QuerySetCommand::Context &ctx);
void queryAttached(QuerySetCommand::Context &ctx);
size_t threadInfoIdx = 0;
void queryFThreadInfo(QuerySetCommand::Context &ctx);