user-level: 0.763
performance: 0.612
PID: 0.593
graphic: 0.559
semantic: 0.554
device: 0.508
arm: 0.450
architecture: 0.444
x86: 0.378
socket: 0.364
hypervisor: 0.334
register: 0.287
mistranslation: 0.277
ppc: 0.277
peripherals: 0.272
vnc: 0.252
permissions: 0.234
i386: 0.231
assembly: 0.211
virtual: 0.192
network: 0.174
risc-v: 0.156
boot: 0.132
files: 0.116
debug: 0.113
kernel: 0.098
TCG: 0.076
VMM: 0.072
KVM: 0.032

qemu 2.4.1: dereferencing pointer to incomplete type ‘struct ucontext’

Trying to compile qemu release 2.4.1

Getting compile error 

user-exec.c: In function ‘cpu_resume_from_signal’:
user-exec.c:72:37: error: dereferencing pointer to incomplete type ‘struct ucontext’
         sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL);
                                     ^~
user-exec.c: In function ‘cpu_arm_signal_handler’:
user-exec.c:214:41: error: dereferencing pointer to incomplete type ‘struct ucontext’

2.4.1 is a very old release of QEMU. I would recommend moving to a more recent release.


I need this for raspberry pi emulation and the most recent doesn't work as you can see from my other bug post.

QEMU 2.4 is from 2015, and we didn't add raspi2 support until 2016. We've never supported the USB controller for the raspi boards. Perhaps you're using some other fork of QEMU? If so, better to talk to whoever's responsible for it.


v2.4 is not maintained anymore, so closing this as WONTFIX.