Messages in this thread | | | Date | Thu, 2 May 2013 13:12:25 +0200 | From | Mikael Pettersson <> | Subject | RE: X86 fpu registers in a signal handler's ucontext |
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Warlich, Christof writes: > richard -rw- weinberger <richard.weinberger@gmail.com> writes: > > Are you telling us that Ubuntu shipped the wrong header file? > > Hmm - at least I still don't know how to get the right definition > of uc_mcontext (with eglibc-2.13 on Ubuntu 11.10) ... > > If I include both signal.h and asm-generic/ucontext.h, gcc reports > this error: > > /usr/include/asm-generic/ucontext.h:4:8: error: redefinition of 'struct ucontext' > /usr/include/i386-linux-gnu/sys/ucontext.h:119:16: error: previous definition of 'struct ucontext' > > Thus, signal.h obviously includes the wrong i386-linux-gnu/sys/ucontext.h > defining uc_mcontext to be of type mcontext_t. > > So is it still me doing something wrong or or _did_ Ubuntu ship > the wrong header files?
#include <signal.h> #include <ucontext.h>
has worked for my SIGFPE handlers on Linux for the last 10+ years on various distros and target architectures.
Can we stop this thread now? There is no _kernel_ issue here.
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