Date: Sat, 22 Feb 2020 21:44:00 +0000 (UTC) From: Kyle Evans <kevans@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r358253 - in stable: 11/usr.bin/kdump 12/usr.bin/kdump Message-ID: <202002222144.01MLi0rK072859@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: kevans Date: Sat Feb 22 21:44:00 2020 New Revision: 358253 URL: https://svnweb.freebsd.org/changeset/base/358253 Log: MFC r358109: kdump: decode SHM_ANON as first arg to legacy shm_open(2) The first argument to shm_open(2) as well as shm_open2(2) may be a path or SHM_ANON. Decode SHM_ANON, at least- paths will show up as namei results in kdump output, which may be sufficient; in those cases, we'll have printed an address. Modified: stable/12/usr.bin/kdump/kdump.c Directory Properties: stable/12/ (props changed) Changes in other areas also in this revision: Modified: stable/11/usr.bin/kdump/kdump.c Directory Properties: stable/11/ (props changed) Modified: stable/12/usr.bin/kdump/kdump.c ============================================================================== --- stable/12/usr.bin/kdump/kdump.c Sat Feb 22 20:50:30 2020 (r358252) +++ stable/12/usr.bin/kdump/kdump.c Sat Feb 22 21:44:00 2020 (r358253) @@ -55,6 +55,7 @@ __FBSDID("$FreeBSD$"); #include <sys/uio.h> #include <sys/event.h> #include <sys/ktrace.h> +#include <sys/mman.h> #include <sys/ioctl.h> #include <sys/socket.h> #include <sys/stat.h> @@ -1247,7 +1248,12 @@ ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags) narg--; break; case SYS_shm_open: - print_number(ip, narg, c); + if (ip[0] == (uintptr_t)SHM_ANON) { + printf("(SHM_ANON"); + ip++; + } else { + print_number(ip, narg, c); + } putchar(','); print_mask_arg(sysdecode_open_flags, ip[0]); putchar(',');
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202002222144.01MLi0rK072859>