]> git.saurik.com Git - apple/xnu.git/blobdiff - bsd/kern/makesyscalls.sh
xnu-2782.20.48.tar.gz
[apple/xnu.git] / bsd / kern / makesyscalls.sh
index 04b0324aeaf3ff39dedeb38fb0de77255f4c4bc5..13d56f58a62a1cf400c8228de32b6afe14fd04c3 100755 (executable)
@@ -172,7 +172,7 @@ 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 +190,12 @@ s/\$//g
                printf "#include <mach/shared_region.h>\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 +210,7 @@ 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 <sys/munge.h>\n" > sysarg
                
                printf "\n" > sysarg
 
@@ -472,13 +408,9 @@ 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 +433,12 @@ 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()
@@ -523,7 +446,6 @@ 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")) {
@@ -532,58 +454,45 @@ s/\$//g
                                        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 +501,13 @@ 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] == "associd_t" || argtype[i] == "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 +539,6 @@ s/\$//g
                if (add_sysent_entry == 0) {
                        argssize = "0"
                        munge32 = "NULL"
-                       munge64 = "NULL"
                        munge_ret = "_SYSCALL_RET_NONE"
                        if (tempname != "enosys") {
                                tempname = "nosys"
@@ -657,6 +564,9 @@ s/\$//g
                        else if (returntype == "uint32_t") {
                                munge_ret = "_SYSCALL_RET_UINT_T"
                        }
+                       else if (returntype == "uint64_t") {
+                               munge_ret = "_SYSCALL_RET_UINT64_T"
+                       }
                        else if (returntype == "off_t") {
                                munge_ret = "_SYSCALL_RET_OFF_T"
                        }
@@ -672,15 +582,17 @@ 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\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) {