Peter, do you have any comment on this way to fix the SIGRTMIN problem we have now for years?
Thanks, Laurent Le 04/02/2020 à 18:10, Laurent Vivier a écrit : > This series fixes the problem of the first real-time signals already > in use by the glibc that are not available for the target glibc. > > Instead of reverting the first and last real-time signals we rely on > the value provided by the glibc (SIGRTMIN) to know the first available > signal and we map all the signals from this value to SIGRTMAX on top > of TARGET_SIGRTMIN. So the consequence is we have less available signals > in the target (generally 2) but all seems fine as at least 30 signals are > still available. > > This has been tested with Go (golang 1.10.1 linux/arm64, bionic) on x86_64 > fedora 31. We can avoid the failure in this case allowing the unsupported > signals when we don't provide the "act" parameters to sigaction, only the > "oldact" one. I have also run the LTP suite with several target and debian > based distros. > > v2: tested with golang 1.12.10 linux/arm64, eoan) > Ignore unsupported signals rather than returning an error > replace i, j by target_sig, host_sig > > Laurent Vivier (4): > linux-user: add missing TARGET_SIGRTMIN for hppa > linux-user: cleanup signal.c > linux-user: fix TARGET_NSIG and _NSIG uses > linux-user: fix use of SIGRTMIN > > linux-user/hppa/target_signal.h | 1 + > linux-user/signal.c | 117 +++++++++++++++++++++++--------- > linux-user/trace-events | 3 + > 3 files changed, 89 insertions(+), 32 deletions(-) >
