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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2025-02-07 15:31:10 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2025-02-10 13:47:59 +0000 |
| commit | d156d5d1df12a73e06092dc5fa6595d6f16f8521 (patch) | |
| tree | cf926ff4c17d703b50578e60efcd0ba071d2004f /linux-user | |
| parent | a33dcfe771c7c2460f2a6809c3b73a5d0772396f (diff) | |
| download | qemu-d156d5d1df12a73e06092dc5fa6595d6f16f8521.zip qemu-d156d5d1df12a73e06092dc5fa6595d6f16f8521.tar.gz qemu-d156d5d1df12a73e06092dc5fa6595d6f16f8521.tar.bz2 | |
gdbstub: Allow late attachment
Allow debugging individual processes in multi-process applications by
starting them with export QEMU_GDB=/tmp/qemu-%d.sock,suspend=n.
Currently one would have to attach to every process to ensure the app
makes progress.
In case suspend=n is not specified, the flow remains unchanged. If it
is specified, then accepting the client connection is delegated to a
thread. In the future this machinery may be reused for handling
reconnections and interruptions.
On accepting a connection, the thread schedules gdb_handlesig() on the
first CPU and wakes it up with host_interrupt_signal. Note that the
result of this gdb_handlesig() invocation is handled, as opposed to
many other existing call sites. These other call sites probably need to
be fixed separately.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20250117001542.8290-7-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250207153112.3939799-16-alex.bennee@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 7198fa0..5c74c52 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -1024,7 +1024,6 @@ int main(int argc, char **argv, char **envp) if (gdbstub) { gdbserver_start(gdbstub, &error_fatal); - gdb_handlesig(cpu, 0, NULL, NULL, 0); } #ifdef CONFIG_SEMIHOSTING |