Date: Wed, 6 Feb 2019 19:22:15 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r343843 - head/sys/riscv/riscv Message-ID: <201902061922.x16JMFt8050314@repo.freebsd.org>
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Author: emaste Date: Wed Feb 6 19:22:15 2019 New Revision: 343843 URL: https://svnweb.freebsd.org/changeset/base/343843 Log: riscv: default to non-executable stack There's no need to worry about potential backwards compatibility issues in a brand-new architecture, so avoid stack PROT_EXEC as with arm64. Discussed with: br Modified: head/sys/riscv/riscv/elf_machdep.c Modified: head/sys/riscv/riscv/elf_machdep.c ============================================================================== --- head/sys/riscv/riscv/elf_machdep.c Wed Feb 6 18:50:48 2019 (r343842) +++ head/sys/riscv/riscv/elf_machdep.c Wed Feb 6 19:22:15 2019 (r343843) @@ -77,7 +77,7 @@ struct sysentvec elf64_freebsd_sysvec = { .sv_maxuser = VM_MAXUSER_ADDRESS, .sv_usrstack = USRSTACK, .sv_psstrings = PS_STRINGS, - .sv_stackprot = VM_PROT_ALL, + .sv_stackprot = VM_PROT_READ | VM_PROT_WRITE, .sv_copyout_strings = exec_copyout_strings, .sv_setregs = exec_setregs, .sv_fixlimit = NULL,
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