4 commits

Author	SHA1	Message	Date
Edward Tomasz Napierala	10f2d3f857	Revert r356948; breaks build somehow.	2020-01-21 20:32:49 +00:00
Edward Tomasz Napierala	c5f4e26e7d	Make linux(4) handle MAP_32BIT. ... This unbreaks Mono (mono-devel-4.6.2.7+dfsg-1ubuntu1 from Ubuntu Bionic); previously would crash on "amd64_is_imm32" assert. MFC after: 2 weeks Sponsored by: The FreeBSD Foundation	2020-01-21 19:19:02 +00:00
Tijl Coosemans	e2fba140a8	Let linuxulator mprotect mask unsupported bits before calling kern_mprotect. ... After r349240 kern_mprotect returns EINVAL for unsupported bits in the prot argument. Linux rtld uses PROT_GROWSDOWN and PROT_GROWS_UP when marking the stack executable. Mask these bits like kern_mprotect used to do. For other unsupported bits EINVAL is returned like Linux does. Reviewed by: trasz, brooks MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20864	2019-07-10 08:19:33 +00:00
Dmitry Chagin	97d06da692	Fix a copy/paste bug introduced during X86_64 Linuxulator work. ... FreeBSD support NX bit on X86_64 processors out of the box, for i386 emulation use READ_IMPLIES_EXEC flag, introduced in r302515. While here move common part of mmap() and mprotect() code to the files in compat/linux to reduce code dupcliation between Linuxulator's. Reported by: Johannes Jost Meixner, Shawn Webb MFC after: 1 week XMFC with: r302515, r302516	2016-07-10 08:22:04 +00:00