X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d1ecb069dfe24481e4a83f44cb5217a2b06746d7..c6bf4f310a33a9262d455ea4d3f0630b1255e3fe:/bsd/kern/makesyscalls.sh diff --git a/bsd/kern/makesyscalls.sh b/bsd/kern/makesyscalls.sh index d8b11ba6c..ffdacf957 100755 --- a/bsd/kern/makesyscalls.sh +++ b/bsd/kern/makesyscalls.sh @@ -34,6 +34,10 @@ output_sysprotofile=0 output_syshdrfile=0 output_syscalltablefile=0 output_auditevfile=0 +output_tracecodes=0 +output_systrace=0 + +use_stdout=0 # output files: syscallnamesfile="syscalls.c" @@ -46,7 +50,8 @@ auditevfile="audit_kevents.c" syscallprefix="SYS_" switchname="sysent" namesname="syscallnames" - +tracecodename="syscall.codes" +systraceargsfile="systrace_args.c" # tmp files: syslegal="sysent.syslegal.$$" sysent="sysent.switch.$$" @@ -56,14 +61,18 @@ sysprotoend="sysprotoend.$$" syscallnamestempfile="syscallnamesfile.$$" syshdrtempfile="syshdrtempfile.$$" audittempfile="audittempfile.$$" +tracecodetempfile="tracecodetempfile.$$" +systraceargstempfile="systraceargstempfile.$$" +systraceargdesctempfile="systraceargdesctempfile.$$" +systracerettempfile="systracerettempfile.$$" -trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile" 0 +trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile $tracecodetempfile $systraceargstempfile $systraceargdesctempfile $systracerettempfile" 0 -touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile +touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile $tracecodetempfile $systraceargstempfile $systraceargdesctempfile $systracerettempfile case $# in 0) - echo "usage: $0 input-file [ []]" 1>&2 + echo "usage: $0 input-file [ []]" 1>&2 exit 1 ;; esac @@ -88,6 +97,13 @@ if [ -n "$1" ]; then audit) output_auditevfile=1 ;; + systrace) + output_systrace=1 + ;; + trace) + output_tracecodes=1 + use_stdout=1 + ;; esac shift; else @@ -96,6 +112,7 @@ else output_syshdrfile=1 output_syscalltablefile=1 output_auditevfile=1 + output_tracecodes=1 fi if [ -n "$1" -a -f "$1" ]; then @@ -131,7 +148,11 @@ s/\$//g syscallnamestempfile = \"$syscallnamestempfile\" syshdrfile = \"$syshdrfile\" syshdrtempfile = \"$syshdrtempfile\" + systraceargstempfile = \"$systraceargstempfile\" + systraceargdesctempfile = \"$systraceargdesctempfile\" + systracerettempfile = \"$systracerettempfile\" audittempfile = \"$audittempfile\" + tracecodetempfile = \"$tracecodetempfile\" syscallprefix = \"$syscallprefix\" switchname = \"$switchname\" namesname = \"$namesname\" @@ -172,7 +193,7 @@ s/\$//g } NR == 1 { printf "\n/* The casts are bogus but will do for now. */\n" > sysent - printf "__private_extern__ struct sysent %s[] = {\n",switchname > sysent + printf "__private_extern__ const struct sysent %s[] = {\n",switchname > sysent printf "#ifndef %s\n", sysproto_h > sysarg printf "#define\t%s\n\n", sysproto_h > sysarg @@ -190,7 +211,12 @@ s/\$//g printf "#include \n" > sysarg printf "\n#ifdef KERNEL\n" > sysarg printf "#ifdef __APPLE_API_PRIVATE\n" > sysarg - printf "#ifndef __arm__\n" > sysarg + printf "/*\n" > sysarg + printf " * The kernel may support multiple userspace ABIs, and must use\n" > sysarg + printf " * argument structures with elements large enough for any of them.\n" > sysarg + printf "*/\n" > sysarg + printf "\n" > sysarg + printf "#if CONFIG_REQUIRES_U32_MUNGING\n" > sysarg printf "#define\tPAD_(t)\t(sizeof(uint64_t) <= sizeof(t) \\\n " > sysarg printf "\t\t? 0 : sizeof(uint64_t) - sizeof(t))\n" > sysarg printf "#else\n" > sysarg @@ -205,76 +231,7 @@ s/\$//g printf "#define\tPADR_(t)\t0\n" > sysarg printf "#endif\n" > sysarg printf "\n__BEGIN_DECLS\n" > sysarg - printf "#ifndef __MUNGE_ONCE\n" > sysarg - printf "#define __MUNGE_ONCE\n" > sysarg - printf "#ifndef __arm__\n" > sysarg - printf "void munge_w(const void *, void *); \n" > sysarg - printf "void munge_ww(const void *, void *); \n" > sysarg - printf "void munge_www(const void *, void *); \n" > sysarg - printf "void munge_wwww(const void *, void *); \n" > sysarg - printf "void munge_wwwww(const void *, void *); \n" > sysarg - printf "void munge_wwwwww(const void *, void *); \n" > sysarg - printf "void munge_wwwwwww(const void *, void *); \n" > sysarg - printf "void munge_wwwwwwww(const void *, void *); \n" > sysarg - printf "void munge_wl(const void *, void *); \n" > sysarg - printf "void munge_wlw(const void *, void *); \n" > sysarg - printf "void munge_wwwl(const void *, void *); \n" > sysarg - printf "void munge_wwwlw(const void *, void *); \n" > sysarg - printf "void munge_wwwlww(const void *, void *); \n" > sysarg - printf "void munge_wwlwww(const void *, void *); \n" > sysarg - printf "void munge_wwwwlw(const void *, void *); \n" > sysarg - printf "void munge_wwwwl(const void *, void *); \n" > sysarg - printf "void munge_wwwwwl(const void *, void *); \n" > sysarg - printf "void munge_wwwwwwll(const void *, void *); \n" > sysarg - printf "void munge_wwwwwwlw(const void *, void *); \n" > sysarg - printf "void munge_wsw(const void *, void *); \n" > sysarg - printf "void munge_wws(const void *, void *); \n" > sysarg - printf "void munge_wwwsw(const void *, void *); \n" > sysarg - printf "void munge_llllll(const void *, void *); \n" > sysarg - printf "#else \n" > sysarg - printf "#define munge_w NULL \n" > sysarg - printf "#define munge_ww NULL \n" > sysarg - printf "#define munge_www NULL \n" > sysarg - printf "#define munge_wwww NULL \n" > sysarg - printf "#define munge_wwwww NULL \n" > sysarg - printf "#define munge_wwwwww NULL \n" > sysarg - printf "#define munge_wwwwwww NULL \n" > sysarg - printf "#define munge_wwwwwwww NULL \n" > sysarg - printf "#define munge_wl NULL \n" > sysarg - printf "#define munge_wlw NULL \n" > sysarg - printf "#define munge_wwwl NULL \n" > sysarg - printf "#define munge_wwwlw NULL \n" > sysarg - printf "#define munge_wwwlww NULL\n" > sysarg - printf "#define munge_wwlwww NULL \n" > sysarg - printf "#define munge_wwwwl NULL \n" > sysarg - printf "#define munge_wwwwlw NULL \n" > sysarg - printf "#define munge_wwwwwl NULL \n" > sysarg - printf "#define munge_wwwwwwlw NULL \n" > sysarg - printf "#define munge_wsw NULL \n" > sysarg - printf "#define munge_wws NULL \n" > sysarg - printf "#define munge_wwwsw NULL \n" > sysarg - printf "#define munge_llllll NULL \n" > sysarg - printf "#endif // ! __arm__\n" > sysarg - printf "#ifdef __ppc__\n" > sysarg - printf "void munge_d(const void *, void *); \n" > sysarg - printf "void munge_dd(const void *, void *); \n" > sysarg - printf "void munge_ddd(const void *, void *); \n" > sysarg - printf "void munge_dddd(const void *, void *); \n" > sysarg - printf "void munge_ddddd(const void *, void *); \n" > sysarg - printf "void munge_dddddd(const void *, void *); \n" > sysarg - printf "void munge_ddddddd(const void *, void *); \n" > sysarg - printf "void munge_dddddddd(const void *, void *); \n" > sysarg - printf "#else \n" > sysarg - printf "#define munge_d NULL \n" > sysarg - printf "#define munge_dd NULL \n" > sysarg - printf "#define munge_ddd NULL \n" > sysarg - printf "#define munge_dddd NULL \n" > sysarg - printf "#define munge_ddddd NULL \n" > sysarg - printf "#define munge_dddddd NULL \n" > sysarg - printf "#define munge_ddddddd NULL \n" > sysarg - printf "#define munge_dddddddd NULL \n" > sysarg - printf "#endif // __ppc__\n" > sysarg - printf "#endif /* !__MUNGE_ONCE */\n" > sysarg + printf "#include \n" > sysarg printf "\n" > sysarg @@ -286,6 +243,19 @@ s/\$//g printf "#include \n\n" > audittempfile printf "#if CONFIG_AUDIT\n\n" > audittempfile printf "au_event_t sys_au_event[] = {\n" > audittempfile + + printf "/*\n * System call argument to DTrace register array conversion.\n */\n" > systraceargstempfile + printf "#include \n" > systraceargstempfile + printf "void\nsystrace_args(int sysnum, void *params, uint64_t *uarg)\n{\n" > systraceargstempfile + printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systraceargstempfile + printf "\tswitch (sysnum) {\n" > systraceargstempfile + + printf "void\nsystrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systraceargdesctempfile + printf "\tswitch (sysnum) {\n" > systraceargdesctempfile + + printf "void\nsystrace_return_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracerettempfile + printf "\tswitch (sysnum) {\n" > systracerettempfile + next } NF == 0 || $1 ~ /^;/ { @@ -301,6 +271,9 @@ s/\$//g print > syscallnamestempfile print > sysprotoend print > audittempfile + print > systraceargstempfile + print > systraceargdesctempfile + print > systracerettempfile savesyscall = syscall_num skip_for_header = 0 next @@ -311,6 +284,9 @@ s/\$//g print > syscallnamestempfile print > sysprotoend print > audittempfile + print > systraceargstempfile + print > systraceargdesctempfile + print > systracerettempfile syscall_num = savesyscall skip_for_header = 1 next @@ -321,6 +297,9 @@ s/\$//g print > syscallnamestempfile print > sysprotoend print > audittempfile + print > systraceargstempfile + print > systraceargdesctempfile + print > systracerettempfile skip_for_header = 0 next } @@ -354,6 +333,7 @@ s/\$//g argc = 0 argssize = "0" additional_comments = " " + obs_comments = "_" # find start and end of call name and arguments if ($current_field != "{") @@ -411,9 +391,15 @@ s/\$//g current_field = comments_start + 1 while (current_field < comments_end) { additional_comments = additional_comments $current_field " " + obs_comments = obs_comments $current_field "_" current_field++ } } + sub(/old/, "obs", obs_comments) + obs_comments = substr(obs_comments, 1, length(obs_comments)-1) + if (obs_comments == "_") { + obs_comments = "" + } # get function return type current_field = args_start + 1 @@ -423,6 +409,9 @@ s/\$//g current_field++ funcname = $current_field argalias = funcname "_args" + if (substr(argalias, 1, 4) == "sys_") { + argalias = substr(argalias, 5) + } current_field++ # bump past function name if ($current_field != "(") @@ -472,13 +461,9 @@ s/\$//g add_sysnames_entry = 1 add_sysheader_entry = 1 add_sysproto_entry = 1 - add_64bit_unsafe = 0 - add_64bit_fakesafe = 0 - add_resv = "0" - my_flags = "0" - if ($3 != "ALL" && $3 != "UALL") { + if ($3 != "ALL") { files_keyword_OK = 0 add_sysent_entry = 0 add_sysnames_entry = 0 @@ -501,21 +486,12 @@ s/\$//g add_sysproto_entry = 1 files_keyword_OK = 1 } - if (match($3, "[U]") != 0) { - add_64bit_unsafe = 1 - } - if (match($3, "[F]") != 0) { - add_64bit_fakesafe = 1 - } if (files_keyword_OK == 0) { printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 exit 1 } } - else if ($3 == "UALL") { - add_64bit_unsafe = 1; - } parseline() @@ -523,67 +499,87 @@ s/\$//g # output function argument structures to sysproto.h and build the # name of the appropriate argument mungers munge32 = "NULL" - munge64 = "NULL" size32 = 0 if ((funcname != "nosys" && funcname != "enosys") || (syscall_num == 0 && funcname == "nosys")) { + printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall_num) > systraceargstempfile + printf("\t/* %s */\n\tcase %d:\n", funcname, syscall_num) > systraceargdesctempfile + printf("\t/* %s */\n\tcase %d:\n", funcname, syscall_num) > systracerettempfile + if (argc > 0) { + printf("\t\tswitch(ndx) {\n") > systraceargdesctempfile + printf("\t\tstruct %s *p = params;\n", argalias) > systraceargstempfile + for (i = 1; i <= argc; i++) { + arg = argtype[i] + sub("__restrict$", "", arg) + if (index(arg, "*") > 0) + printf("\t\tcase %d:\n\t\t\tp = \"userland %s\";\n\t\t\tbreak;\n", i - 1, arg) > systraceargdesctempfile + else + printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, arg) > systraceargdesctempfile + if (index(arg, "*") > 0 || arg == "caddr_t") + printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \ + i - 1, \ + argname[i], arg) > systraceargstempfile + else if (substr(arg, 1, 1) == "u" || arg == "size_t") + printf("\t\tuarg[%d] = p->%s; /* %s */\n", \ + i - 1, \ + argname[i], arg) > systraceargstempfile + else + printf("\t\tiarg[%d] = p->%s; /* %s */\n", \ + i - 1, \ + argname[i], arg) > systraceargstempfile + } + printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systraceargdesctempfile + + } + printf("\t\tbreak;\n\t}\n", argc) > systraceargstempfile + printf("\t\tif (ndx == 0 || ndx == 1)\n") > systracerettempfile + printf("\t\t\tp = \"%s\";\n", returntype) > systracerettempfile + printf("\t\tbreak;\n") > systracerettempfile + printf("\t\tbreak;\n") > systraceargdesctempfile if (argc != 0) { if (add_sysproto_entry == 1) { printf("struct %s {\n", argalias) > sysarg } munge32 = "munge_" - munge64 = "munge_" for (i = 1; i <= argc; i++) { # Build name of argument munger. # We account for all sys call argument types here. # This is where you add any new types. With LP64 support # each argument consumes 64-bits. - # see .../xnu/bsd/dev/ppc/munge.s for munge argument types. + # see .../xnu/bsd/dev/munge.c for munge argument types. if (argtype[i] == "long") { - if (add_64bit_unsafe == 0) - ext_argtype[i] = "user_long_t"; + ext_argtype[i] = "user_long_t"; munge32 = munge32 "s" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "u_long") { - if (add_64bit_unsafe == 0) - ext_argtype[i] = "user_ulong_t"; + ext_argtype[i] = "user_ulong_t"; munge32 = munge32 "w" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "size_t") { - if (add_64bit_unsafe == 0) - ext_argtype[i] = "user_size_t"; + ext_argtype[i] = "user_size_t"; munge32 = munge32 "w" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "ssize_t") { - if (add_64bit_unsafe == 0) - ext_argtype[i] = "user_ssize_t"; + ext_argtype[i] = "user_ssize_t"; munge32 = munge32 "s" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "user_ssize_t" || argtype[i] == "user_long_t") { munge32 = munge32 "s" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "user_addr_t" || argtype[i] == "user_size_t" || argtype[i] == "user_ulong_t") { munge32 = munge32 "w" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "caddr_t" || argtype[i] == "semun_t" || - match(argtype[i], "[\*]") != 0) { - if (add_64bit_unsafe == 0) - ext_argtype[i] = "user_addr_t"; + argtype[i] == "uuid_t" || match(argtype[i], "[\*]") != 0) { + ext_argtype[i] = "user_addr_t"; munge32 = munge32 "w" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "int" || argtype[i] == "u_int" || @@ -592,14 +588,13 @@ s/\$//g argtype[i] == "socklen_t" || argtype[i] == "uint32_t" || argtype[i] == "int32_t" || argtype[i] == "sigset_t" || argtype[i] == "gid_t" || argtype[i] == "unsigned int" || argtype[i] == "mode_t" || argtype[i] == "key_t" || - argtype[i] == "mach_port_name_t") { + argtype[i] == "mach_port_name_t" || argtype[i] == "au_asid_t" || + argtype[i] == "sae_associd_t" || argtype[i] == "sae_connid_t") { munge32 = munge32 "w" - munge64 = munge64 "d" size32 += 4 } else if (argtype[i] == "off_t" || argtype[i] == "int64_t" || argtype[i] == "uint64_t") { munge32 = munge32 "l" - munge64 = munge64 "d" size32 += 8 } else { @@ -631,7 +626,6 @@ s/\$//g if (add_sysent_entry == 0) { argssize = "0" munge32 = "NULL" - munge64 = "NULL" munge_ret = "_SYSCALL_RET_NONE" if (tempname != "enosys") { tempname = "nosys" @@ -675,19 +669,24 @@ s/\$//g } } - if (add_64bit_unsafe == 1 && add_64bit_fakesafe == 0) - my_flags = "UNSAFE_64BIT"; - - printf("\t{%s, %s, %s, \(sy_call_t *\)%s, %s, %s, %s, %s},", - argssize, add_resv, my_flags, tempname, munge32, munge64, munge_ret, size32) > sysent - linesize = length(argssize) + length(add_resv) + length(my_flags) + length(tempname) + \ - length(munge32) + length(munge64) + length(munge_ret) + 28 + printf("#if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))\n") > sysent + printf("\t{ \(sy_call_t *\)%s, %s, %s, %s, %s},", + tempname, munge32, munge_ret, argssize, size32) > sysent + linesize = length(tempname) + length(munge32) + \ + length(munge_ret) + length(argssize) + length(size32) + 28 align_comment(linesize, 88, sysent) printf("/* %d = %s%s*/\n", syscall_num, funcname, additional_comments) > sysent + printf("#else\n") > sysent + printf("\t{ \(sy_call_t *\)%s, %s, %s, %s},\n", + tempname, munge_ret, argssize, size32) > sysent + printf("#endif\n") > sysent # output to syscalls.c if (add_sysnames_entry == 1) { tempname = funcname + if (substr(tempname, 1, 4) == "sys_") { + tempname = substr(tempname, 5) + } if (funcname == "nosys" || funcname == "enosys") { if (syscall_num == 0) tempname = "syscall" @@ -708,6 +707,9 @@ s/\$//g # output to syscalls.h if (add_sysheader_entry == 1) { tempname = funcname + if (substr(tempname, 1, 4) == "sys_") { + tempname = substr(tempname, 5) + } if (syscall_num == 0) { tempname = "syscall" } @@ -716,13 +718,6 @@ s/\$//g linesize = length(syscallprefix) + length(tempname) + 12 align_comment(linesize, 30, syshdrtempfile) printf("%d\n", syscall_num) > syshdrtempfile - # special case for gettimeofday on ppc - cctools project uses old name - if (tempname == "ppc_gettimeofday") { - printf("#define\t%s%s", syscallprefix, "gettimeofday") > syshdrtempfile - linesize = length(syscallprefix) + length(tempname) + 12 - align_comment(linesize, 30, syshdrtempfile) - printf("%d\n", syscall_num) > syshdrtempfile - } } else if (skip_for_header == 0) { printf("\t\t\t/* %d %s*/\n", syscall_num, additional_comments) > syshdrtempfile @@ -744,7 +739,21 @@ s/\$//g # output to audit_kevents.c printf("\t%s,\t\t", auditev) > audittempfile printf("/* %d = %s%s*/\n", syscall_num, tempname, additional_comments) > audittempfile - + + tempname = funcname + if (skip_for_header == 0) { + if (tempname == "nosys" || tempname == "enosys") { + if (obs_comments == "") { + printf("0x40c%04x\tBSC_#%d%s\n", (syscall_num*4), syscall_num, obs_comments) > tracecodetempfile + } else { + printf("0x40c%04x\tBSC%s\n", (syscall_num*4), obs_comments) > tracecodetempfile + } + } else { + sub(/^_+/, "", tempname) + printf("0x40c%04x\tBSC_%s\n", (syscall_num*4), tempname) > tracecodetempfile + } + } + syscall_num++ next } @@ -762,17 +771,21 @@ s/\$//g printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend printf("};\n") > sysent - printf("int nsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent - printf("/* Verify that NUM_SYSENT reflects the latest syscall count */\n") > sysent - printf("int nsysent_size_check[((sizeof(sysent) / sizeof(sysent[0])) == NUM_SYSENT) ? 1 : -1] __unused;\n") > sysent + printf("const unsigned int nsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent printf("};\n") > syscallnamestempfile printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall_num) \ > syshdrtempfile + printf("#define\t%sinvalid\t%d\n", syscallprefix, 63) \ + > syshdrtempfile printf("\n#endif /* __APPLE_API_PRIVATE */\n") > syshdrtempfile printf("#endif /* !%s */\n", syscall_h) > syshdrtempfile printf("};\n\n") > audittempfile printf("#endif /* AUDIT */\n") > audittempfile + + printf "\tdefault:\n\t\tbreak;\n\t};\n}\n" > systraceargstempfile + printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systraceargdesctempfile + printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracerettempfile } ' # define value in syscall table file to permit redifintion because of the way @@ -798,3 +811,18 @@ fi if [ $output_auditevfile -eq 1 ]; then cat $syslegal $audittempfile > $auditevfile fi + +if [ $output_systrace -eq 1 ]; then + cat $systraceargstempfile > $systraceargsfile + cat $systraceargdesctempfile >> $systraceargsfile + cat $systracerettempfile >> $systraceargsfile +fi + +if [ $output_tracecodes -eq 1 ]; then + if [ $use_stdout -eq 1 ]; then + cat $tracecodetempfile + else + cat $tracecodetempfile > $tracecodename + fi +fi +