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3 commits

Author SHA1 Message Date
John Baldwin
31174518d2 Use uintptr_t instead of register_t * for the stack base.
- Use ustringp for the location of the argv and environment strings
  and allow destp to travel further down the stack for the stackgap
  and auxv regions.
- Update the Linux copyout_strings variants to move destp down the
  stack as was done for the native ABIs in r263349.
- Stop allocating a space for a stack gap in the Linux ABIs.  This
  used to hold translated system call arguments, but hasn't been used
  since r159992.

Reviewed by:	kib
Tested on:	md64 (amd64, i386, linux64), i386 (i386, linux)
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D22501
2019-12-03 23:17:54 +00:00
John Baldwin
03b0d68c72 Check for errors from copyout() and suword*() in sv_copyout_args/strings.
Reviewed by:	brooks, kib
Tested on:	amd64 (amd64, i386, linux64), i386 (i386, linux)
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D22401
2019-11-18 20:07:43 +00:00
Ed Schouten
240f8c2d51 Add CPU independent code for running 32-bits CloudABI executables.
Essentially, this is a literal copy of the code in sys/compat/cloudabi64,
except that it now makes use of 32-bits datatypes and limits. In
sys/conf/files, we now need to take care to build the code in
sys/compat/cloudabi if either COMPAT_CLOUDABI32 or COMPAT_CLOUDABI64 is
turned on.

This change does not yet include any of the CPU dependent bits. Right
now I have implementations for running i386 binaries both on i386 and
x86-64, which I will send out for review separately.
2016-08-21 16:01:30 +00:00