From 5c6fb2961cb40a7613265d1860f68c02aff60dae Mon Sep 17 00:00:00 2001 From: netchild Date: Sat, 20 May 2006 14:27:22 +0000 Subject: Change kdump to print more useful information, i.e. it changes from 32229 telnet CALL mmap(0,0x8000,0x3,0x1002,0xffffffff,0,0,0) 32229 telnet CALL open(0x2807bc28,0,0x1b6) 32229 telnet CALL socket(0x2,0x2,0) to 32229 telnet CALL mmap(0,0x8000,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,0xffffffff,0,0,0) 32229 telnet CALL open(0x2807bc28,O_RDONLY,0x1b6) 32229 telnet CALL socket(PF_INET,SOCK_DGRAM,0) David wanted to implement the suggestions which came up at the review from arch@ too, but real life rejected this proposal. So I commit what we already got and let another volunteer pick the remaining work from the ideas list. Submitted by: "David Kirchner" Suggested by: FreeBSD ideas list page Reviewed by: arch --- usr.bin/kdump/mksubr | 407 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 407 insertions(+) create mode 100644 usr.bin/kdump/mksubr (limited to 'usr.bin/kdump/mksubr') diff --git a/usr.bin/kdump/mksubr b/usr.bin/kdump/mksubr new file mode 100644 index 0000000..1f5debd --- /dev/null +++ b/usr.bin/kdump/mksubr @@ -0,0 +1,407 @@ +set -e + +# Generates kdump_subr.c +# mkioctls is a special-purpose script, and works fine as it is +# now, so it remains independent. The idea behind how it generates +# its list was heavily borrowed here. +# +# Some functions here are automatically generated. This can mean +# the user will see unusual kdump output or errors while building +# if the underlying .h files are changed significantly. +# +# Key: +# AUTO: Completely auto-generated with either the "or" or the "switch" +# method. +# AUTO - Special: Generated automatically, but with some extra commands +# that the auto_*_type() functions are inappropriate for. +# MANUAL: Manually entered and must therefore be manually updated. + +# $FreeBSD$ + +LC_ALL=C; export LC_ALL + +if [ -z "$1" ] +then + echo "usage: sh $0 include-dir" + exit 1 +fi +include_dir=$1 + +# +# Automatically generates a C function that will print out the +# numeric input as a pipe-delimited string of the appropriate +# #define keys. ex: +# S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH +# The XOR is necessary to prevent including the "0"-value in every +# line. +# +auto_or_type () { + local name grep file + name=$1 + grep=$2 + file=$3 + + cat <<_EOF_ +/* AUTO */ +void +$name (int arg) +{ + int or = 0; +_EOF_ + egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \ + $include_dir/$file | \ + awk '{ for (i = 1; i <= NF; i++) \ + if ($i ~ /define/) \ + break; \ + ++i; \ + printf "\tif(!((arg>0)^((%s)>0)))\n\t\tif_print_or(arg, %s, or);\n", $i, $i }' +cat <<_EOF_ + if (or == 0) + (void)printf("%ld", (long)arg); +} + +_EOF_ +} + +# +# Automatically generates a C function used when the argument +# maps to a single, specific #definition +# +auto_switch_type () { + local name grep file + name=$1 + grep=$2 + file=$3 + + cat <<_EOF_ +/* AUTO */ +void +$name (int arg) +{ + switch (arg) { +_EOF_ + egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \ + $include_dir/$file | \ + awk '{ for (i = 1; i <= NF; i++) \ + if ($i ~ /define/) \ + break; \ + ++i; \ + printf "\tcase %s:\n\t\t(void)printf(\"%s\");\n\t\tbreak;\n", $i, $i }' +cat <<_EOF_ + default: /* Should not reach */ + (void)printf("", (long)arg); + } +} + +_EOF_ +} + +# C start + +cat <<_EOF_ +#include +#include +#include +#include +#include +#include +#define _KERNEL +#include +#undef _KERNEL +#include +#include +#include +#include +#include +#include +#define _KERNEL +#include +#undef _KERNEL +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "kdump_subr.h" + +/* + * These are simple support macros. print_or utilizes a variable + * defined in the calling function to track whether or not it should + * print a logical-OR character ('|') before a string. if_print_or + * simply handles the necessary "if" statement used in many lines + * of this file. + */ +#define print_or(str,orflag) do { \\ + if (orflag) putchar('|'); else orflag = 1; \\ + printf (str); } \\ + while (0) +#define if_print_or(i,flag,orflag) do { \\ + if ((i & flag) == flag) \\ + print_or(#flag,orflag); } \\ + while (0) + +/* MANUAL */ +extern char *signames[]; /* from kdump.c */ +void +signame (int sig) +{ + (void)printf("SIG%s",signames[sig]); +} + +/* MANUAL */ +void +semctlname (int cmd) +{ + switch (cmd) { + case GETNCNT: + (void)printf("GETNCNT"); + break; + case GETPID: + (void)printf("GETPID"); + break; + case GETVAL: + (void)printf("GETVAL"); + break; + case GETALL: + (void)printf("GETALL"); + break; + case GETZCNT: + (void)printf("GETZCNT"); + break; + case SETVAL: + (void)printf("SETVAL"); + break; + case SETALL: + (void)printf("SETALL"); + break; + case IPC_RMID: + (void)printf("IPC_RMID"); + break; + case IPC_SET: + (void)printf("IPC_SET"); + break; + case IPC_STAT: + (void)printf("IPC_STAT"); + break; + default: /* Should not reach */ + (void)printf("", (long)cmd); + } +} + +/* MANUAL */ +void +shmctlname (int cmd) { + switch (cmd) { + case IPC_RMID: + (void)printf("IPC_RMID"); + break; + case IPC_SET: + (void)printf("IPC_SET"); + break; + case IPC_STAT: + (void)printf("IPC_STAT"); + break; + default: /* Should not reach */ + (void)printf("", (long)cmd); + } +} + +/* MANUAL */ +void +semgetname (int flag) { + int or = 0; + if_print_or(flag, SEM_R, or); + if_print_or(flag, SEM_A, or); + if_print_or(flag, (SEM_R>>3), or); + if_print_or(flag, (SEM_A>>3), or); + if_print_or(flag, (SEM_R>>6), or); + if_print_or(flag, (SEM_A>>6), or); +} + +/* + * MANUAL + * + * Only used by SYS_open. Unless O_CREAT is set in flags, the + * mode argument is unused (and often bogus and misleading). + */ +void +flagsandmodename (int flags, int mode, int decimal) { + flagsname (flags); + (void)putchar(','); + if ((flags & O_CREAT) == O_CREAT) { + modename (mode); + } else { + if (decimal) { + (void)printf("%ld", (long)mode); + } else { + (void)printf("%#lx", (long)mode); + } + } +} + +/* + * MANUAL + * + * [g|s]etsockopt's level argument can either be SOL_SOCKET or a value + * referring to a line in /etc/protocols . It might be appropriate + * to use getprotoent(3) here. + */ +void +sockoptlevelname (int level, int decimal) +{ + if (level == SOL_SOCKET) { + (void)printf("SOL_SOCKET"); + } else { + if (decimal) { + (void)printf("%ld", (long)level); + } else { + (void)printf("%#lx", (long)level); + } + } +} + +_EOF_ + +auto_or_type "modename" "S_[A-Z]+[[:space:]]+[0-6]{7}" "sys/stat.h" +auto_or_type "flagsname" "O_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+" "sys/fcntl.h" +auto_or_type "accessmodename" "[A-Z]_OK[[:space:]]+0?x?[0-9A-Fa-f]+" "sys/unistd.h" +auto_or_type "mmapprotname" "PROT_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+" "sys/mman.h" +auto_or_type "mmapflagsname" "MAP_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+" "sys/mman.h" +auto_or_type "wait4optname" "W[A-Z]+[[:space:]]+[0-9]+" "sys/wait.h" +auto_or_type "getfsstatflagsname" "MNT_[A-Z]+[[:space:]]+[1-9][0-9]*" "sys/mount.h" +auto_or_type "mountflagsname" "MNT_[A-Z]+[[:space:]]+0x[0-9]+" "sys/mount.h" +auto_or_type "rebootoptname" "RB_[A-Z]+[[:space:]]+0x[0-9]+" "sys/reboot.h" +auto_or_type "flockname" "LOCK_[A-Z]+[[:space:]]+0x[0-9]+" "sys/fcntl.h" +auto_or_type "sockoptname" "SO_[A-Z]+[[:space:]]+0x[0-9]+" "sys/socket.h" +auto_or_type "sockdomainname" "PF_[A-Z]+[[:space:]]+" "sys/socket.h" +auto_or_type "socktypename" "SOCK_[A-Z]+[[:space:]]+[1-9]+[0-9]*" "sys/socket.h" +auto_or_type "thrcreateflagsname" "THR_[A-Z]+[[:space:]]+0x[0-9]+" "sys/thr.h" +auto_or_type "mlockallname" "MCL_[A-Z]+[[:space:]]+0x[0-9]+" "sys/mman.h" +auto_or_type "shmatname" "SHM_[A-Z]+[[:space:]]+[0-9]{6}+" "sys/shm.h" +auto_or_type "rforkname" "RF[A-Z]+[[:space:]]+\([0-9]+<<[0-9]+\)" "sys/unistd.h" +auto_or_type "nfssvcname" "NFSSVC_[A-Z]+[[:space:]]+0x[0-9]+" "nfsserver/nfs.h" + +auto_switch_type "whencename" "SEEK_[A-Z]+[[:space:]]+[0-9]+" "sys/unistd.h" +auto_switch_type "rlimitname" "RLIMIT_[A-Z]+[[:space:]]+[0-9]+" "sys/resource.h" +auto_switch_type "shutdownhowname" "SHUT_[A-Z]+[[:space:]]+0x[0-9]+" "sys/socket.h" +auto_switch_type "prioname" "PRIO_[A-Z]+[[:space:]]+[0-9]" "sys/resource.h" +auto_switch_type "madvisebehavname" "_?MADV_[A-Z]+[[:space:]]+[0-9]+" "sys/mman.h" +auto_switch_type "msyncflagsname" "MS_[A-Z]+[[:space:]]+0x[0-9]+" "sys/mman.h" +auto_switch_type "schedpolicyname" "SCHED_[A-Z]+[[:space:]]+[0-9]+" "sched.h" +auto_switch_type "kldunloadfflagsname" "LINKER_UNLOAD_[A-Z]+[[:space:]]+[0-9]+" "sys/linker.h" +auto_switch_type "ksethrcmdname" "KSE_INTR_[A-Z]+[[:space:]]+[0-9]+" "sys/kse.h" +auto_switch_type "extattrctlname" "EXTATTR_NAMESPACE_[A-Z]+[[:space:]]+0x[0-9]+" "sys/extattr.h" +auto_switch_type "kldsymcmdname" "KLDSYM_[A-Z]+[[:space:]]+[0-9]+" "sys/linker.h" +auto_switch_type "sendfileflagsname" "SF_[A-Z]+[[:space:]]+[0-9]+" "sys/socket.h" +auto_switch_type "acltypename" "ACL_TYPE_[A-Z]+[[:space:]]+0x[0-9]+" "sys/acl.h" +auto_switch_type "sigprocmaskhowname" "SIG_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h" +auto_switch_type "lio_listioname" "LIO_(NO)?WAIT[[:space:]]+[0-9]+" "aio.h" +auto_switch_type "minheritname" "INHERIT_[A-Z]+[[:space:]]+[0-9]+" "sys/mman.h" +auto_switch_type "quotactlname" "Q_[A-Z]+[[:space:]]+0x[0-9]+" "ufs/ufs/quota.h" + +cat <<_EOF_ +/* + * AUTO - Special + * F_ is used to specify fcntl commands as well as arguments. Both sets are + * grouped in fcntl.h, and this awk script grabs the first group. + */ +void +fcntlcmdname (int cmd, int arg, int decimal) +{ + switch (cmd) { +_EOF_ +egrep "^#[[:space:]]*define[[:space:]]+F_[A-Z]+[[:space:]]+[0-9]+[[:space:]]*" \ + $include_dir/sys/fcntl.h | \ + awk 'BEGIN { o=0 } { for (i = 1; i <= NF; i++) \ + if ($i ~ /define/) \ + break; \ + ++i; \ + if (o <= $(i+1)) \ + printf "\tcase %s:\n\t\t(void)printf(\"%s\");\n\t\tbreak;\n", $i, $i; \ + else \ + exit; \ + o = $(i+1) }' +cat <<_EOF_ + default: /* Should not reach */ + (void)printf("", (long)cmd); + } + (void)putchar(','); + if (cmd == F_GETFD || cmd == F_SETFD) { + if (arg == FD_CLOEXEC) + (void)printf("FD_CLOEXEC"); + else if (arg == 0) + (void)printf("0"); + else { + if (decimal) + (void)printf("%ld", (long)arg); + else + (void)printf("%#lx", (long)arg); + } + } else if (cmd == F_SETFL) { + flagsname(arg); + } else { + if (decimal) + (void)printf("%ld", (long)arg); + else + (void)printf("%#lx", (long)arg); + } +} + +/* + * AUTO - Special + * + * The only reason this is not fully automated is due to the + * grep -v RTP_PRIO statement. A better egrep line should + * make this capable of being a auto_switch_type() function. + */ +void +rtprioname (int func) +{ + switch (func) { +_EOF_ +egrep "^#[[:space:]]*define[[:space:]]+RTP_[A-Z]+[[:space:]]+0x[0-9]+[[:space:]]*" \ + $include_dir/sys/rtprio.h | grep -v RTP_PRIO | \ + awk '{ for (i = 1; i <= NF; i++) \ + if ($i ~ /define/) \ + break; \ + ++i; \ + printf "\tcase %s:\n\t\t(void)printf(\"%s\");\n\t\tbreak;\n", $i, $i }' +cat <<_EOF_ + default: /* Should not reach */ + (void)printf("", (long)func); + } +} + +/* + * AUTO - Special + * + * The send and recv functions have a flags argument which can be + * set to 0. There is no corresponding #define. The auto_ functions + * detect this as "invalid", which is incorrect here. + */ +void +sendrecvflagsname (int flags) +{ + int or = 0; + + if (flags == 0) { + (void)printf("0"); + return; + } +_EOF_ +egrep "^#[[:space:]]*define[[:space:]]+MSG_[A-Z]+[[:space:]]+0x[0-9]+[[:space:]]*" $include_dir/sys/socket.h | \ + awk '{ for (i = 1; i <= NF; i++) \ + if ($i ~ /define/) \ + break; \ + ++i; \ + printf "\tif(!((flags>0)^((%s)>0)))\n\t\tif_print_or(flags, %s, or);\n", $i, $i }' +cat <<_EOF_ +} + +_EOF_ -- cgit v1.1