id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
11946,Boost.Context crashes on x86_64/MinGW,tomasz.wlostowski@…,olli,"Dear Boost Developers,

The GNU assembler version of the make_fcontext()/jump_fcontext() functions on x86_64 platforms have a serious bug that causes the program to segfault: the GAS code loads an invalid memory location instead of a constant due to a missing '$', for example:

Is: movq 1, rcx            // rcx = mem[1]
Should be: movq $1, rcx    // rcx = 1
movq $1, %rcx -> moves

The attached patch fixes the issue.

Best Regards,
Tomasz Wlostowski",Bugs,closed,To Be Determined,context,Boost 1.60.0,Showstopper,fixed,,