Date: Mon, 30 Sep 2019 19:03:43 +0000 (UTC) From: Pawel Biernacki <kaktus@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r352913 - head/lib/libsysdecode Message-ID: <201909301903.x8UJ3h3f029497@repo.freebsd.org>
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Author: kaktus Date: Mon Sep 30 19:03:43 2019 New Revision: 352913 URL: https://svnweb.freebsd.org/changeset/base/352913 Log: libsysdecode: decode PROT_MAX flags Extend libsysdecode to pretty-print PROT_MAX flags and fix decoding of regular protection flags broken since r349240. before: truss: mmap(0x0,40960,0x30000,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34366234624 (0x800632000) kdump: 11439 protmax CALL mmap(0,0xa000,0x30000<><invalid>196608,0x21002<MAP_PRIVATE|MAP_ANON|MAP_NOCORE>,0xffffffff,0) after: truss: mmap(0x0,40960,PROT_MAX(PROT_READ|PROT_WRITE)|PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34366234624 (0x800632000) kdump: 11439 protmax CALL mmap(0,0xa000,0x30000<PROT_MAX(PROT_READ|PROT_WRITE)|PROT_READ|PROT_WRITE>,0x21002<MAP_PRIVATE|MAP_ANON|MAP_NOCORE>,0xffffffff,0) Reviewed by: kib (mentor) Approved by: kib (mentor) Differential Revision: https://reviews.freebsd.org/D21706 Modified: head/lib/libsysdecode/flags.c Modified: head/lib/libsysdecode/flags.c ============================================================================== --- head/lib/libsysdecode/flags.c Mon Sep 30 18:22:33 2019 (r352912) +++ head/lib/libsysdecode/flags.c Mon Sep 30 19:03:43 2019 (r352913) @@ -657,8 +657,18 @@ sysdecode_mlockall_flags(FILE *fp, int flags, int *rem bool sysdecode_mmap_prot(FILE *fp, int prot, int *rem) { + int protm; + bool printed; - return (print_mask_int(fp, mmapprot, prot, rem)); + printed = false; + protm = PROT_MAX_EXTRACT(prot); + if (protm != 0) { + fputs("PROT_MAX(", fp); + printed = print_mask_int(fp, mmapprot, protm, rem); + fputs(")|", fp); + prot = protm; + } + return (print_mask_int(fp, mmapprot, prot, rem) || printed); } bool
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