svn commit: r349874 - head/sys/powerpc/powerpc

Justin Hibbits jhibbits at FreeBSD.org
Wed Jul 10 04:09:16 UTC 2019


Author: jhibbits
Date: Wed Jul 10 04:09:15 2019
New Revision: 349874
URL: https://svnweb.freebsd.org/changeset/base/349874

Log:
  powerpc: Clamp 32-bit binaries to 32-bit MAXUSER
  
  sv_maxuser specifies the maximum addressable space for user space.  Presently
  this is all 64-bits worth, which is impossible for a 32-bit process.
  
  This bug has existed since the initial import of powerpc64 in 2010.
  
  MFC after:	2 weeks

Modified:
  head/sys/powerpc/powerpc/elf32_machdep.c

Modified: head/sys/powerpc/powerpc/elf32_machdep.c
==============================================================================
--- head/sys/powerpc/powerpc/elf32_machdep.c	Wed Jul 10 03:45:23 2019	(r349873)
+++ head/sys/powerpc/powerpc/elf32_machdep.c	Wed Jul 10 04:09:15 2019	(r349874)
@@ -97,7 +97,7 @@ struct sysentvec elf32_freebsd_sysvec = {
 	.sv_minuser	= VM_MIN_ADDRESS,
 	.sv_stackprot	= VM_PROT_ALL,
 #ifdef __powerpc64__
-	.sv_maxuser	= VM_MAXUSER_ADDRESS,
+	.sv_maxuser	= VM_MAXUSER_ADDRESS32,
 	.sv_usrstack	= FREEBSD32_USRSTACK,
 	.sv_psstrings	= FREEBSD32_PS_STRINGS,
 	.sv_copyout_strings = freebsd32_copyout_strings,


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