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9868 unused cw translations should be removed


  20  * CDDL HEADER END
  21  */
  22 
  23 /*
  24  * Copyright 2018, Richard Lowe.
  25  */
  26 /*
  27  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30 
  31 /*
  32  * Wrapper for the GNU C compiler to make it accept the Sun C compiler
  33  * arguments where possible.
  34  *
  35  * Since the translation is inexact, this is something of a work-in-progress.
  36  *
  37  */
  38 
  39 /* If you modify this file, you must increment CW_VERSION */
  40 #define CW_VERSION      "2.0"
  41 
  42 /*
  43  * -#           Verbose mode
  44  * -###         Show compiler commands built by driver, no compilation
  45  * -A<name[(tokens)]>     Preprocessor predicate assertion
  46  * -B<[static|dynamic]>   Specify dynamic or static binding
  47  * -C           Prevent preprocessor from removing comments
  48  * -c           Compile only - produce .o files, suppress linking
  49  * -cg92        Alias for -xtarget=ss1000
  50  * -D<name[=token]>       Associate name with token as if by #define
  51  * -d[y|n]      dynamic [-dy] or static [-dn] option to linker
  52  * -E           Compile source through preprocessor only, output to stdout
  53  * -erroff=<t>    Suppress warnings specified by tags t(%none, %all, <tag list>)
  54  * -errtags=<a>   Display messages with tags a(no, yes)
  55  * -errwarn=<t>   Treats warnings specified by tags t(%none, %all, <tag list>)
  56  *              as errors
  57  * -fast        Optimize using a selection of options
  58  * -fd          Report old-style function definitions and declarations
  59  * -features=zla        Allow zero-length arrays
  60  * -flags       Show this summary of compiler options
  61  * -fnonstd     Initialize floating-point hardware to non-standard preferences
  62  * -fns[=<yes|no>] Select non-standard floating point mode
  63  * -fprecision=<p> Set FP rounding precision mode p(single, double, extended)
  64  * -fround=<r>    Select the IEEE rounding mode in effect at startup
  65  * -fsimple[=<n>] Select floating-point optimization preferences <n>
  66  * -fsingle     Use single-precision arithmetic (-Xt and -Xs modes only)
  67  * -ftrap=<t>     Select floating-point trapping mode in effect at startup
  68  * -fstore      force floating pt. values to target precision on assignment
  69  * -G           Build a dynamic shared library
  70  * -g           Compile for debugging
  71  * -H           Print path name of each file included during compilation
  72  * -h <name>      Assign <name> to generated dynamic shared library
  73  * -I<dir>        Add <dir> to preprocessor #include file search path
  74  * -i           Passed to linker to ignore any LD_LIBRARY_PATH setting
  75  * -keeptmp     Keep temporary files created during compilation
  76  * -KPIC        Compile position independent code with 32-bit addresses
  77  * -Kpic        Compile position independent code
  78  * -L<dir>        Pass to linker to add <dir> to the library search path
  79  * -l<name>       Link with library lib<name>.a or lib<name>.so
  80  * -mc          Remove duplicate strings from .comment section of output files
  81  * -mr          Remove all strings from .comment section of output files
  82  * -mr,"string" Remove all strings and append "string" to .comment section
  83  * -mt          Specify options needed when compiling multi-threaded code
  84  * -native      Find available processor, generate code accordingly
  85  * -nofstore    Do not force floating pt. values to target precision
  86  *              on assignment
  87  * -nolib       Same as -xnolib
  88  * -noqueue     Disable queuing of compiler license requests
  89  * -norunpath   Do not build in a runtime path for shared libraries
  90  * -O           Use default optimization level (-xO2 or -xO3. Check man page.)
  91  * -o <outputfile> Set name of output file to <outputfile>
  92  * -P           Compile source through preprocessor only, output to .i  file
  93  * -PIC         Alias for -KPIC or -xcode=pic32
  94  * -p           Compile for profiling with prof
  95  * -pic         Alias for -Kpic or -xcode=pic13
  96  * -Q[y|n]      Emit/don't emit identification info to output file
  97  * -qp          Compile for profiling with prof
  98  * -R<dir[:dir]> Build runtime search path list into executable
  99  * -S           Compile and only generate assembly code (.s)
 100  * -s           Strip symbol table from the executable file
 101  * -t           Turn off duplicate symbol warnings when linking
 102  * -U<name>       Delete initial definition of preprocessor symbol <name>
 103  * -V           Report version number of each compilation phase
 104  * -v           Do stricter semantic checking
 105  * -W<c>,<arg>      Pass <arg> to specified component <c> (a,l,m,p,0,2,h,i,u)
 106  * -w           Suppress compiler warning messages
 107  * -Xa          Compile assuming ANSI C conformance, allow K & R extensions
 108  *              (default mode)
 109  * -Xc          Compile assuming strict ANSI C conformance
 110  * -Xs          Compile assuming (pre-ANSI) K & R C style code
 111  * -Xt          Compile assuming K & R conformance, allow ANSI C
 112  * -x386        Generate code for the 80386 processor
 113  * -x486        Generate code for the 80486 processor
 114  * -xarch=<a>     Specify target architecture instruction set
 115  * -xbuiltin[=<b>] When profitable inline, or substitute intrinisic functions
 116  *              for system functions, b={%all,%none}
 117  * -xCC         Accept C++ style comments
 118  * -xchar_byte_order=<o> Specify multi-char byte order <o> (default, high, low)
 119  * -xchip=<c>     Specify the target processor for use by the optimizer
 120  * -xcode=<c>     Generate different code for forming addresses
 121  * -xcrossfile[=<n>] Enable optimization and inlining across source files,
 122  *              n={0|1}
 123  * -xe          Perform only syntax/semantic checking, no code generation
 124  * -xF          Compile for later mapfile reordering or unused section
 125  *              elimination
 126  * -xhelp=<f>     Display on-line help information f(flags, readme, errors)
 127  * -xildoff     Cancel -xildon
 128  * -xildon      Enable use of the incremental linker, ild
 129  * -xinline=[<a>,...,<a>]  Attempt inlining of specified user routines,
 130  *              <a>={%auto,func,no%func}
 131  * -xlibmieee   Force IEEE 754 return values for math routines in
 132  *              exceptional cases
 133  * -xlibmil     Inline selected libm math routines for optimization
 134  * -xlic_lib=sunperf    Link in the Sun supplied performance libraries
 135  * -xlicinfo    Show license server information
 136  * -xM          Generate makefile dependencies
 137  * -xM1         Generate makefile dependencies, but exclude /usr/include
 138  * -xmaxopt=[off,1,2,3,4,5] maximum optimization level allowed on #pragma opt
 139  * -xnolib      Do not link with default system libraries
 140  * -xnolibmil   Cancel -xlibmil on command line
 141  * -xO<n> Generate optimized code (n={1|2|3|4|5})
 142  * -xP          Print prototypes for function definitions
 143  * -xpentium    Generate code for the pentium processor
 144  * -xpg         Compile for profiling with gprof
 145  * -xprofile=<p> Collect data for a profile or use a profile to optimize
 146  *              <p>={{collect,use}[:<path>],tcov}
 147  * -xregs=<r>     Control register allocation
 148  * -xs          Allow debugging without object (.o) files
 149  * -xsb         Compile for use with the WorkShop source browser
 150  * -xsbfast     Generate only WorkShop source browser info, no compilation
 151  * -xsfpconst   Represent unsuffixed floating point constants as single
 152  *              precision
 153  * -xspace      Do not do optimizations that increase code size
 154  * -xstrconst   Place string literals into read-only data segment
 155  * -xtarget=<t>   Specify target system for optimization
 156  * -xtemp=<dir>   Set directory for temporary files to <dir>
 157  * -xtime       Report the execution time for each compilation phase
 158  * -xtransition Emit warnings for differences between K&R C and ANSI C
 159  * -xtrigraphs[=<yes|no>] Enable|disable trigraph translation
 160  * -xunroll=n   Enable unrolling loops n times where possible
 161  * -Y<c>,<dir>      Specify <dir> for location of component <c> (a,l,m,p,0,h,i,u)
 162  * -YA,<dir>      Change default directory searched for components
 163  * -YI,<dir>      Change default directory searched for include files
 164  * -YP,<dir>      Change default directory for finding libraries files
 165  * -YS,<dir>      Change default directory for startup object files
 166  */
 167 
 168 /*
 169  * Translation table:
 170  */
 171 /*
 172  * -#                           -v
 173  * -###                         error
 174  * -A<name[(tokens)]>             pass-thru
 175  * -B<[static|dynamic]>           pass-thru (syntax error for anything else)
 176  * -C                           pass-thru
 177  * -c                           pass-thru
 178  * -cg92                        -m32 -mcpu=v8 -mtune=supersparc (SPARC only)
 179  * -D<name[=token]>               pass-thru
 180  * -dy or -dn                   -Wl,-dy or -Wl,-dn
 181  * -E                           pass-thru
 182  * -erroff=E_EMPTY_TRANSLATION_UNIT ignore
 183  * -errtags=%all                -Wall
 184  * -errwarn=%all                -Werror else -Wno-error
 185  * -fast                        error
 186  * -fd                          error
 187  * -features=zla                ignore
 188  * -flags                       --help
 189  * -fnonstd                     error
 190  * -fns[=<yes|no>]                error
 191  * -fprecision=<p>                error
 192  * -fround=<r>                    error
 193  * -fsimple[=<n>]         error
 194  * -fsingle[=<n>]         error
 195  * -ftrap=<t>                     error
 196  * -fstore                      error
 197  * -G                           pass-thru
 198  * -g                           pass-thru
 199  * -H                           pass-thru
 200  * -h <name>                      pass-thru
 201  * -I<dir>                        pass-thru
 202  * -i                           pass-thru
 203  * -keeptmp                     -save-temps
 204  * -KPIC                        -fPIC
 205  * -Kpic                        -fpic
 206  * -L<dir>                        pass-thru
 207  * -l<name>                       pass-thru
 208  * -mc                          error
 209  * -mr                          error
 210  * -mr,"string"                 error
 211  * -mt                          -D_REENTRANT
 212  * -native                      error
 213  * -nofstore                    error
 214  * -nolib                       -nodefaultlibs
 215  * -noqueue                     ignore
 216  * -norunpath                   ignore
 217  * -O                           -O1 (Check the man page to be certain)
 218  * -o <outputfile>                pass-thru
 219  * -P                           -E -o filename.i (or error)
 220  * -PIC                         -fPIC (C++ only)
 221  * -p                           pass-thru
 222  * -pic                         -fpic (C++ only)
 223  * -Q[y|n]                      error
 224  * -qp                          -p
 225  * -R<dir[:dir]>          pass-thru
 226  * -S                           pass-thru
 227  * -s                           -Wl,-s
 228  * -t                           -Wl,-t
 229  * -U<name>                       pass-thru
 230  * -V                           --version
 231  * -v                           -Wall
 232  * -Wa,<arg>                      pass-thru
 233  * -Wp,<arg>                      pass-thru except -xc99=<a>
 234  * -Wl,<arg>                      pass-thru
 235  * -W{m,0,2,h,i,u>           error/ignore
 236  * -Wu,-xmodel=kernel           -ffreestanding -mcmodel=kernel -mno-red-zone
 237  * -xmodel=kernel               -ffreestanding -mcmodel=kernel -mno-red-zone
 238  * -Wu,-save_args               -msave-args
 239  * -w                           pass-thru
 240  * -Xa                          -std=iso9899:199409 or -ansi
 241  * -Xc                          -ansi -pedantic
 242  * -Xt                          error
 243  * -Xs                          -traditional -std=c89
 244  * -x386                        -march=i386 (x86 only)
 245  * -x486                        -march=i486 (x86 only)
 246  * -xarch=<a>                     table
 247  * -xbuiltin[=<b>]                -fbuiltin (-fno-builtin otherwise)
 248  * -xCC                         ignore
 249  * -xchar_byte_order=<o>  error
 250  * -xchip=<c>                     table
 251  * -xcode=<c>                     table
 252  * -xdebugformat=<format> ignore (always use dwarf-2 for gcc)
 253  * -xcrossfile[=<n>]              ignore
 254  * -xe                          error
 255  * -xF                          error
 256  * -xhelp=<f>                     error
 257  * -xildoff                     ignore
 258  * -xildon                      ignore
 259  * -xinline                     ignore
 260  * -xlibmieee                   error
 261  * -xlibmil                     error
 262  * -xlic_lib=sunperf            error
 263  * -xM                          -M
 264  * -xM1                         -MM
 265  * -xmaxopt=[...]               error
 266  * -xnolib                      -nodefaultlibs
 267  * -xnolibmil                   error
 268  * -xO<n>                 -O<n>
 269  * -xP                          error
 270  * -xpentium                    -march=pentium (x86 only)
 271  * -xpg                         error
 272  * -xprofile=<p>          error
 273  * -xregs=<r>                     table
 274  * -xs                          error
 275  * -xsb                         error
 276  * -xsbfast                     error
 277  * -xsfpconst                   error
 278  * -xspace                      ignore (-not -Os)
 279  * -xstrconst                   ignore
 280  * -xtarget=<t>                   table
 281  * -xtemp=<dir>                   error
 282  * -xtime                       error
 283  * -xtransition                 -Wtransition
 284  * -xtrigraphs=<yes|no>           -trigraphs -notrigraphs
 285  * -xunroll=n                   error
 286  * -W0,-xdbggen=no%usedonly     -fno-eliminate-unused-debug-symbols
 287  *                              -fno-eliminate-unused-debug-types
 288  * -Y<c>,<dir>                      error
 289  * -YA,<dir>                      error
 290  * -YI,<dir>                      -nostdinc -I<dir>
 291  * -YP,<dir>                      error
 292  * -YS,<dir>                      error
 293  */
 294 
 295 #include <ctype.h>
 296 #include <err.h>
 297 #include <errno.h>
 298 #include <fcntl.h>
 299 #include <getopt.h>
 300 #include <stdio.h>
 301 #include <stdlib.h>
 302 #include <string.h>
 303 #include <unistd.h>
 304 


 510         newae(h, "-Wextra");
 511 }
 512 
 513 static void
 514 optim_disable(struct aelist *h, int level)
 515 {
 516         if (level >= 2) {
 517                 newae(h, "-fno-strict-aliasing");
 518                 newae(h, "-fno-unit-at-a-time");
 519                 newae(h, "-fno-optimize-sibling-calls");
 520         }
 521 }
 522 
 523 /* ARGSUSED */
 524 static void
 525 Xamode(struct aelist __unused *h)
 526 {
 527 }
 528 
 529 static void
 530 Xcmode(struct aelist *h)
 531 {
 532         static int xconce;
 533 
 534         if (xconce++)
 535                 return;
 536 
 537         newae(h, "-ansi");
 538         newae(h, "-pedantic-errors");
 539 }
 540 
 541 static void
 542 Xsmode(struct aelist *h)
 543 {
 544         static int xsonce;
 545 
 546         if (xsonce++)
 547                 return;
 548 
 549         newae(h, "-traditional");
 550         newae(h, "-traditional-cpp");
 551 }
 552 
 553 static void
 554 usage()
 555 {
 556         extern char *__progname;
 557         (void) fprintf(stderr,
 558             "usage: %s [-C] [--versions] --primary <compiler> "
 559             "[--shadow <compiler>]... -- cflags...\n",
 560             __progname);
 561         (void) fprintf(stderr, "compilers take the form: name,path,style\n"


 702                                 newae(ctx->i_ae, strchr(arg, '=') + 1);
 703                                 continue;
 704                         }
 705                         if (strncmp(arg, "-compat=", 8) == 0) {
 706                                 /* discard -compat=4 and -compat=5 */
 707                                 continue;
 708                         }
 709                         if (strcmp(arg, "-Qoption") == 0) {
 710                                 /* discard -Qoption and its two arguments */
 711                                 if (ctx->i_oldargc < 3)
 712                                         error(arg);
 713                                 ctx->i_oldargc -= 2;
 714                                 ctx->i_oldargv += 2;
 715                                 continue;
 716                         }
 717                         if (strcmp(arg, "-xwe") == 0) {
 718                                 /* turn warnings into errors */
 719                                 newae(ctx->i_ae, "-Werror");
 720                                 continue;
 721                         }
 722                         if (strcmp(arg, "-noex") == 0) {
 723                                 /* no exceptions */
 724                                 newae(ctx->i_ae, "-fno-exceptions");
 725                                 /* no run time type descriptor information */
 726                                 newae(ctx->i_ae, "-fno-rtti");
 727                                 continue;
 728                         }
 729                         if (strcmp(arg, "-pic") == 0) {
 730                                 newae(ctx->i_ae, "-fpic");
 731                                 pic = 1;
 732                                 continue;
 733                         }
 734                         if (strcmp(arg, "-PIC") == 0) {
 735                                 newae(ctx->i_ae, "-fPIC");
 736                                 pic = 1;
 737                                 continue;
 738                         }
 739                         if (strcmp(arg, "-norunpath") == 0) {
 740                                 /* gcc has no corresponding option */
 741                                 continue;
 742                         }
 743                         if (strcmp(arg, "-nolib") == 0) {
 744                                 /* -nodefaultlibs is on by default */
 745                                 nolibc = 1;
 746                                 continue;
 747                         }
 748 #if defined(__sparc)
 749                         if (strcmp(arg, "-cg92") == 0) {
 750                                 mflag |= xlate_xtb(ctx->i_ae, "v8");
 751                                 xlate(ctx->i_ae, "super", xchip_tbl);
 752                                 continue;
 753                         }
 754 #endif  /* __sparc */
 755                 }
 756 
 757                 switch ((c = arg[1])) {
 758                 case '_':


 857                                 /*
 858                                  * Accept but ignore this -- gcc doesn't
 859                                  * seem to complain about empty translation
 860                                  * units
 861                                  */
 862                                 break;
 863                         }
 864                         /* XX64 -- ignore all -erroff= options, for now */
 865                         if (strncmp(arg, "-erroff=", 8) == 0)
 866                                 break;
 867                         if (strcmp(arg, "-errtags=yes") == 0) {
 868                                 warnings(ctx->i_ae);
 869                                 break;
 870                         }
 871                         if (strcmp(arg, "-errwarn=%all") == 0) {
 872                                 newae(ctx->i_ae, "-Werror");
 873                                 break;
 874                         }
 875                         error(arg);
 876                         break;
 877                 case 'f':
 878                         if (strcmp(arg, "-flags") == 0) {
 879                                 newae(ctx->i_ae, "--help");
 880                                 break;
 881                         }
 882                         if (strncmp(arg, "-features=zla", 13) == 0) {
 883                                 /*
 884                                  * Accept but ignore this -- gcc allows
 885                                  * zero length arrays.
 886                                  */
 887                                 break;
 888                         }
 889                         error(arg);
 890                         break;
 891                 case 'G':
 892                         newae(ctx->i_ae, "-shared");
 893                         nolibc = 1;
 894                         break;
 895                 case 'k':
 896                         if (strcmp(arg, "-keeptmp") == 0) {
 897                                 newae(ctx->i_ae, "-save-temps");
 898                                 break;
 899                         }
 900                         error(arg);
 901                         break;
 902                 case 'K':
 903                         if (arglen == 1) {
 904                                 if ((arg = *++ctx->i_oldargv) == NULL ||
 905                                     *arg == '\0')
 906                                         error("-K");
 907                                 ctx->i_oldargc--;
 908                         } else {
 909                                 arg += 2;
 910                         }


 947                                 char *opt;
 948                                 size_t len;
 949                                 char *s;
 950 
 951                                 if (arglen == 1) {
 952                                         opt = *++ctx->i_oldargv;
 953                                         if (opt == NULL || *opt == '\0')
 954                                                 error(arg);
 955                                         ctx->i_oldargc--;
 956                                 } else {
 957                                         opt = arg + 2;
 958                                 }
 959                                 len = strlen(opt) + 7;
 960                                 if ((s = malloc(len)) == NULL)
 961                                         nomem();
 962                                 (void) snprintf(s, len, "-Wl,-%c%s", c, opt);
 963                                 newae(ctx->i_ae, s);
 964                                 free(s);
 965                         }
 966                         break;
 967                 case 'n':
 968                         if (strcmp(arg, "-noqueue") == 0) {
 969                                 /*
 970                                  * Horrid license server stuff - n/a
 971                                  */
 972                                 break;
 973                         }
 974                         error(arg);
 975                         break;
 976                 case 'O':
 977                         if (arglen == 1) {
 978                                 newae(ctx->i_ae, "-O");
 979                                 break;
 980                         }
 981                         error(arg);
 982                         break;
 983                 case 'P':
 984                         /*
 985                          * We could do '-E -o filename.i', but that's hard,
 986                          * and we don't need it for the case that's triggering
 987                          * this addition.  We'll require the user to specify
 988                          * -o in the Makefile.  If they don't they'll find out
 989                          * in a hurry.
 990                          */
 991                         newae(ctx->i_ae, "-E");
 992                         op = CW_O_PREPROCESS;
 993                         nolibc = 1;
 994                         break;
 995                 case 'q':
 996                         if (strcmp(arg, "-qp") == 0) {
 997                                 newae(ctx->i_ae, "-p");
 998                                 break;
 999                         }
1000                         error(arg);
1001                         break;
1002                 case 's':
1003                         if (arglen == 1) {
1004                                 newae(ctx->i_ae, "-Wl,-s");
1005                                 break;
1006                         }
1007                         error(arg);
1008                         break;
1009                 case 't':
1010                         if (arglen == 1) {
1011                                 newae(ctx->i_ae, "-Wl,-t");
1012                                 break;
1013                         }
1014                         error(arg);
1015                         break;
1016                 case 'V':
1017                         if (arglen == 1) {
1018                                 ctx->i_flags &= ~CW_F_ECHO;
1019                                 newae(ctx->i_ae, "--version");
1020                                 break;
1021                         }


1025                         if (arglen == 1) {
1026                                 warnings(ctx->i_ae);
1027                                 break;
1028                         }
1029                         error(arg);
1030                         break;
1031                 case 'W':
1032                         if (strncmp(arg, "-Wp,-xc99", 9) == 0) {
1033                                 /*
1034                                  * gcc's preprocessor will accept c99
1035                                  * regardless, so accept and ignore.
1036                                  */
1037                                 break;
1038                         }
1039                         if (strncmp(arg, "-Wa,", 4) == 0 ||
1040                             strncmp(arg, "-Wp,", 4) == 0 ||
1041                             strncmp(arg, "-Wl,", 4) == 0) {
1042                                 newae(ctx->i_ae, arg);
1043                                 break;
1044                         }
1045                         if (strcmp(arg, "-W0,-xc99=pragma") == 0) {
1046                                 /* (undocumented) enables _Pragma */
1047                                 break;
1048                         }
1049                         if (strcmp(arg, "-W0,-xc99=%none") == 0) {
1050                                 /*
1051                                  * This is a polite way of saying
1052                                  * "no c99 constructs allowed!"
1053                                  * For now, just accept and ignore this.
1054                                  */
1055                                 break;
1056                         }
1057                         if (strcmp(arg, "-W0,-noglobal") == 0 ||
1058                             strcmp(arg, "-W0,-xglobalstatic") == 0) {
1059                                 /*
1060                                  * gcc doesn't prefix local symbols
1061                                  * in debug mode, so this is not needed.
1062                                  */
1063                                 break;
1064                         }
1065                         if (strcmp(arg, "-W0,-Lt") == 0) {
1066                                 /*
1067                                  * Generate tests at the top of loops.
1068                                  * There is no direct gcc equivalent, ignore.
1069                                  */
1070                                 break;
1071                         }
1072                         if (strcmp(arg, "-W0,-xdbggen=no%usedonly") == 0) {
1073                                 newae(ctx->i_ae,
1074                                     "-fno-eliminate-unused-debug-symbols");
1075                                 newae(ctx->i_ae,
1076                                     "-fno-eliminate-unused-debug-types");
1077                                 break;
1078                         }
1079                         if (strcmp(arg, "-W2,-xwrap_int") == 0) {
1080                                 /*
1081                                  * Use the legacy behaviour (pre-SS11)
1082                                  * for integer wrapping.
1083                                  * gcc does not need this.
1084                                  */
1085                                 break;
1086                         }
1087                         if (strcmp(arg, "-W2,-Rcond_elim") == 0) {
1088                                 /*
1089                                  * Elimination and expansion of conditionals;
1090                                  * gcc has no direct equivalent.
1091                                  */
1092                                 break;
1093                         }
1094                         if (strcmp(arg, "-Wd,-xsafe=unboundsym") == 0) {
1095                                 /*
1096                                  * Prevents optimizing away checks for
1097                                  * unbound weak symbol addresses.  gcc does
1098                                  * not do this, so it's not needed.
1099                                  */
1100                                 break;
1101                         }
1102                         if (strncmp(arg, "-Wc,-xcode=", 11) == 0) {
1103                                 xlate(ctx->i_ae, arg + 11, xcode_tbl);
1104                                 if (strncmp(arg + 11, "pic", 3) == 0)
1105                                         pic = 1;
1106                                 break;
1107                         }
1108                         if (strncmp(arg, "-Wc,-Qiselect", 13) == 0) {
1109                                 /*
1110                                  * Prevents insertion of register symbols.
1111                                  * gcc doesn't do this, so ignore it.
1112                                  */
1113                                 break;
1114                         }
1115                         if (strcmp(arg, "-Wc,-Qassembler-ounrefsym=0") == 0) {
1116                                 /*
1117                                  * Prevents optimizing away of static variables.
1118                                  * gcc does not do this, so it's not needed.
1119                                  */
1120                                 break;
1121                         }
1122 #if defined(__x86)
1123                         if (strcmp(arg, "-Wu,-xmodel=kernel") == 0) {
1124                                 newae(ctx->i_ae, "-ffreestanding");
1125                                 newae(ctx->i_ae, "-mno-red-zone");
1126                                 model = "-mcmodel=kernel";
1127                                 nolibc = 1;
1128                                 break;
1129                         }
1130                         if (strcmp(arg, "-Wu,-save_args") == 0) {
1131                                 newae(ctx->i_ae, "-msave-args");
1132                                 break;
1133                         }
1134 #endif  /* __x86 */
1135                         error(arg);
1136                         break;
1137                 case 'X':
1138                         if (strcmp(arg, "-Xa") == 0 ||
1139                             strcmp(arg, "-Xt") == 0) {
1140                                 Xamode(ctx->i_ae);
1141                                 break;
1142                         }
1143                         if (strcmp(arg, "-Xc") == 0) {
1144                                 Xcmode(ctx->i_ae);
1145                                 break;
1146                         }
1147                         if (strcmp(arg, "-Xs") == 0) {
1148                                 Xsmode(ctx->i_ae);
1149                                 break;
1150                         }
1151                         error(arg);
1152                         break;
1153                 case 'x':
1154                         if (arglen == 1)
1155                                 error(arg);
1156                         switch (arg[2]) {
1157 #if defined(__x86)
1158                         case '3':
1159                                 if (strcmp(arg, "-x386") == 0) {
1160                                         newae(ctx->i_ae, "-march=i386");
1161                                         break;
1162                                 }
1163                                 error(arg);
1164                                 break;
1165                         case '4':
1166                                 if (strcmp(arg, "-x486") == 0) {
1167                                         newae(ctx->i_ae, "-march=i486");
1168                                         break;
1169                                 }
1170                                 error(arg);
1171                                 break;
1172 #endif  /* __x86 */
1173                         case 'a':
1174                                 if (strncmp(arg, "-xarch=", 7) == 0) {
1175                                         mflag |= xlate_xtb(ctx->i_ae, arg + 7);
1176                                         break;
1177                                 }
1178                                 error(arg);
1179                                 break;
1180                         case 'b':
1181                                 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
1182                                         if (strcmp(arg + 10, "%all"))
1183                                                 newae(ctx->i_ae, "-fbuiltin");
1184                                         break;
1185                                 }
1186                                 error(arg);
1187                                 break;
1188                         case 'C':
1189                                 /* Accept C++ style comments -- ignore */
1190                                 if (strcmp(arg, "-xCC") == 0)
1191                                         break;
1192                                 error(arg);
1193                                 break;
1194                         case 'c':
1195                                 if (strncmp(arg, "-xc99=%all", 10) == 0) {
1196                                         newae(ctx->i_ae, "-std=gnu99");
1197                                         break;
1198                                 }
1199                                 if (strncmp(arg, "-xc99=%none", 11) == 0) {
1200                                         newae(ctx->i_ae, "-std=gnu89");
1201                                         break;
1202                                 }
1203                                 if (strncmp(arg, "-xchip=", 7) == 0) {
1204                                         xlate(ctx->i_ae, arg + 7, xchip_tbl);
1205                                         break;
1206                                 }
1207                                 if (strncmp(arg, "-xcode=", 7) == 0) {
1208                                         xlate(ctx->i_ae, arg + 7, xcode_tbl);
1209                                         if (strncmp(arg + 7, "pic", 3) == 0)
1210                                                 pic = 1;
1211                                         break;
1212                                 }
1213                                 if (strncmp(arg, "-xcache=", 8) == 0)
1214                                         break;
1215                                 if (strncmp(arg, "-xcrossfile", 11) == 0)
1216                                         break;
1217                                 error(arg);
1218                                 break;
1219                         case 'd':
1220                                 if (strcmp(arg, "-xdepend") == 0)
1221                                         break;
1222                                 if (strncmp(arg, "-xdebugformat=", 14) == 0)
1223                                         break;
1224                                 error(arg);
1225                                 break;
1226                         case 'F':
1227                                 /*
1228                                  * Compile for mapfile reordering, or unused
1229                                  * section elimination, syntax can be -xF or
1230                                  * more complex, like -xF=%all -- ignore.
1231                                  */
1232                                 if (strncmp(arg, "-xF", 3) == 0)
1233                                         break;
1234                                 error(arg);
1235                                 break;
1236                         case 'i':
1237                                 if (strncmp(arg, "-xinline", 8) == 0)
1238                                         /* No inlining; ignore */
1239                                         break;
1240                                 if (strcmp(arg, "-xildon") == 0 ||
1241                                     strcmp(arg, "-xildoff") == 0)
1242                                         /* No incremental linking; ignore */
1243                                         break;
1244                                 error(arg);
1245                                 break;
1246 #if defined(__x86)
1247                         case 'm':
1248                                 if (strcmp(arg, "-xmodel=kernel") == 0) {
1249                                         newae(ctx->i_ae, "-ffreestanding");
1250                                         newae(ctx->i_ae, "-mno-red-zone");
1251                                         model = "-mcmodel=kernel";
1252                                         nolibc = 1;
1253                                         break;
1254                                 }
1255                                 error(arg);
1256                                 break;
1257 #endif  /* __x86 */
1258                         case 'M':
1259                                 if (strcmp(arg, "-xM") == 0) {
1260                                         newae(ctx->i_ae, "-M");
1261                                         break;
1262                                 }
1263                                 if (strcmp(arg, "-xM1") == 0) {
1264                                         newae(ctx->i_ae, "-MM");
1265                                         break;
1266                                 }
1267                                 error(arg);
1268                                 break;
1269                         case 'n':
1270                                 if (strcmp(arg, "-xnolib") == 0) {
1271                                         nolibc = 1;
1272                                         break;
1273                                 }
1274                                 error(arg);
1275                                 break;
1276                         case 'O':
1277                                 if (strncmp(arg, "-xO", 3) == 0) {
1278                                         size_t len = strlen(arg);
1279                                         char *s = NULL;
1280                                         int c = *(arg + 3);
1281                                         int level;
1282 
1283                                         if (len != 4 || !isdigit(c))
1284                                                 error(arg);
1285 
1286                                         level = atoi(arg + 3);
1287                                         if (level > 5)
1288                                                 error(arg);
1289                                         if (level >= 2) {
1290                                                 /*
1291                                                  * For gcc-3.4.x at -O2 we
1292                                                  * need to disable optimizations
1293                                                  * that break ON.
1294                                                  */
1295                                                 optim_disable(ctx->i_ae, level);
1296                                                 /*
1297                                                  * limit -xO3 to -O2 as well.
1298                                                  */
1299                                                 level = 2;
1300                                         }
1301                                         if (asprintf(&s, "-O%d", level) == -1)
1302                                                 nomem();
1303                                         newae(ctx->i_ae, s);
1304                                         free(s);
1305                                         break;
1306                                 }
1307                                 error(arg);
1308                                 break;
1309                         case 'p':
1310                                 if (strcmp(arg, "-xpentium") == 0) {
1311                                         newae(ctx->i_ae, "-march=pentium");
1312                                         break;
1313                                 }
1314                                 if (strcmp(arg, "-xpg") == 0) {
1315                                         newae(ctx->i_ae, "-pg");
1316                                         break;
1317                                 }
1318                                 error(arg);
1319                                 break;
1320                         case 'r':
1321                                 if (strncmp(arg, "-xregs=", 7) == 0) {
1322                                         xlate(ctx->i_ae, arg + 7, xregs_tbl);
1323                                         break;
1324                                 }
1325                                 error(arg);
1326                                 break;
1327                         case 's':
1328                                 if (strcmp(arg, "-xs") == 0 ||
1329                                     strcmp(arg, "-xspace") == 0 ||
1330                                     strcmp(arg, "-xstrconst") == 0)
1331                                         break;
1332                                 error(arg);
1333                                 break;
1334                         case 't':
1335                                 if (strcmp(arg, "-xtransition") == 0) {
1336                                         newae(ctx->i_ae, "-Wtransition");
1337                                         break;
1338                                 }
1339                                 if (strcmp(arg, "-xtrigraphs=yes") == 0) {
1340                                         newae(ctx->i_ae, "-trigraphs");
1341                                         break;
1342                                 }
1343                                 if (strcmp(arg, "-xtrigraphs=no") == 0) {
1344                                         newae(ctx->i_ae, "-notrigraphs");
1345                                         break;
1346                                 }
1347                                 if (strncmp(arg, "-xtarget=", 9) == 0) {
1348                                         xlate(ctx->i_ae, arg + 9, xtarget_tbl);
1349                                         break;
1350                                 }
1351                                 error(arg);
1352                                 break;
1353                         case 'e':
1354                         case 'h':
1355                         case 'l':
1356                         default:
1357                                 error(arg);
1358                                 break;
1359                         }
1360                         break;
1361                 case 'Y':
1362                         if (arglen == 1) {
1363                                 if ((arg = *++ctx->i_oldargv) == NULL ||
1364                                     *arg == '\0')
1365                                         error("-Y");
1366                                 ctx->i_oldargc--;




  20  * CDDL HEADER END
  21  */
  22 
  23 /*
  24  * Copyright 2018, Richard Lowe.
  25  */
  26 /*
  27  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30 
  31 /*
  32  * Wrapper for the GNU C compiler to make it accept the Sun C compiler
  33  * arguments where possible.
  34  *
  35  * Since the translation is inexact, this is something of a work-in-progress.
  36  *
  37  */
  38 
  39 /* If you modify this file, you must increment CW_VERSION */
  40 #define CW_VERSION      "3.0"
  41 
  42 /*
  43  * -#           Verbose mode
  44  * -###         Show compiler commands built by driver, no compilation
  45  * -A<name[(tokens)]>     Preprocessor predicate assertion
  46  * -B<[static|dynamic]>   Specify dynamic or static binding
  47  * -C           Prevent preprocessor from removing comments
  48  * -c           Compile only - produce .o files, suppress linking
  49  * -cg92        Alias for -xtarget=ss1000
  50  * -D<name[=token]>       Associate name with token as if by #define
  51  * -d[y|n]      dynamic [-dy] or static [-dn] option to linker
  52  * -E           Compile source through preprocessor only, output to stdout
  53  * -erroff=<t>    Suppress warnings specified by tags t(%none, %all, <tag list>)
  54  * -errtags=<a>   Display messages with tags a(no, yes)
  55  * -errwarn=<t>   Treats warnings specified by tags t(%none, %all, <tag list>)
  56  *              as errors
  57  * -fast        Optimize using a selection of options
  58  * -fd          Report old-style function definitions and declarations


  59  * -fnonstd     Initialize floating-point hardware to non-standard preferences
  60  * -fns[=<yes|no>] Select non-standard floating point mode
  61  * -fprecision=<p> Set FP rounding precision mode p(single, double, extended)
  62  * -fround=<r>    Select the IEEE rounding mode in effect at startup
  63  * -fsimple[=<n>] Select floating-point optimization preferences <n>
  64  * -fsingle     Use single-precision arithmetic (-Xt and -Xs modes only)
  65  * -ftrap=<t>     Select floating-point trapping mode in effect at startup
  66  * -fstore      force floating pt. values to target precision on assignment
  67  * -G           Build a dynamic shared library
  68  * -g           Compile for debugging
  69  * -H           Print path name of each file included during compilation
  70  * -h <name>      Assign <name> to generated dynamic shared library
  71  * -I<dir>        Add <dir> to preprocessor #include file search path
  72  * -i           Passed to linker to ignore any LD_LIBRARY_PATH setting
  73  * -keeptmp     Keep temporary files created during compilation
  74  * -KPIC        Compile position independent code with 32-bit addresses
  75  * -Kpic        Compile position independent code
  76  * -L<dir>        Pass to linker to add <dir> to the library search path
  77  * -l<name>       Link with library lib<name>.a or lib<name>.so
  78  * -mc          Remove duplicate strings from .comment section of output files
  79  * -mr          Remove all strings from .comment section of output files
  80  * -mr,"string" Remove all strings and append "string" to .comment section
  81  * -mt          Specify options needed when compiling multi-threaded code
  82  * -native      Find available processor, generate code accordingly
  83  * -nofstore    Do not force floating pt. values to target precision
  84  *              on assignment


  85  * -norunpath   Do not build in a runtime path for shared libraries
  86  * -O           Use default optimization level (-xO2 or -xO3. Check man page.)
  87  * -o <outputfile> Set name of output file to <outputfile>
  88  * -P           Compile source through preprocessor only, output to .i  file

  89  * -p           Compile for profiling with prof

  90  * -Q[y|n]      Emit/don't emit identification info to output file

  91  * -R<dir[:dir]> Build runtime search path list into executable
  92  * -S           Compile and only generate assembly code (.s)
  93  * -s           Strip symbol table from the executable file
  94  * -t           Turn off duplicate symbol warnings when linking
  95  * -U<name>       Delete initial definition of preprocessor symbol <name>
  96  * -V           Report version number of each compilation phase
  97  * -v           Do stricter semantic checking
  98  * -W<c>,<arg>      Pass <arg> to specified component <c> (a,l,m,p,0,2,h,i,u)
  99  * -w           Suppress compiler warning messages
 100  * -Xa          Compile assuming ANSI C conformance, allow K & R extensions
 101  *              (default mode)

 102  * -Xs          Compile assuming (pre-ANSI) K & R C style code
 103  * -Xt          Compile assuming K & R conformance, allow ANSI C


 104  * -xarch=<a>     Specify target architecture instruction set
 105  * -xbuiltin[=<b>] When profitable inline, or substitute intrinisic functions
 106  *              for system functions, b={%all,%none}
 107  * -xCC         Accept C++ style comments

 108  * -xchip=<c>     Specify the target processor for use by the optimizer
 109  * -xcode=<c>     Generate different code for forming addresses
 110  * -xcrossfile[=<n>] Enable optimization and inlining across source files,
 111  *              n={0|1}
 112  * -xe          Perform only syntax/semantic checking, no code generation
 113  * -xF          Compile for later mapfile reordering or unused section
 114  *              elimination
 115  * -xhelp=<f>     Display on-line help information f(flags, readme, errors)
 116  * -xildoff     Cancel -xildon
 117  * -xildon      Enable use of the incremental linker, ild
 118  * -xinline=[<a>,...,<a>]  Attempt inlining of specified user routines,
 119  *              <a>={%auto,func,no%func}
 120  * -xlibmieee   Force IEEE 754 return values for math routines in
 121  *              exceptional cases
 122  * -xlibmil     Inline selected libm math routines for optimization
 123  * -xlic_lib=sunperf    Link in the Sun supplied performance libraries
 124  * -xlicinfo    Show license server information


 125  * -xmaxopt=[off,1,2,3,4,5] maximum optimization level allowed on #pragma opt


 126  * -xO<n> Generate optimized code (n={1|2|3|4|5})
 127  * -xP          Print prototypes for function definitions


 128  * -xprofile=<p> Collect data for a profile or use a profile to optimize
 129  *              <p>={{collect,use}[:<path>],tcov}
 130  * -xregs=<r>     Control register allocation
 131  * -xs          Allow debugging without object (.o) files
 132  * -xsb         Compile for use with the WorkShop source browser
 133  * -xsbfast     Generate only WorkShop source browser info, no compilation
 134  * -xsfpconst   Represent unsuffixed floating point constants as single
 135  *              precision
 136  * -xspace      Do not do optimizations that increase code size
 137  * -xstrconst   Place string literals into read-only data segment
 138  * -xtarget=<t>   Specify target system for optimization
 139  * -xtemp=<dir>   Set directory for temporary files to <dir>
 140  * -xtime       Report the execution time for each compilation phase


 141  * -xunroll=n   Enable unrolling loops n times where possible
 142  * -Y<c>,<dir>      Specify <dir> for location of component <c> (a,l,m,p,0,h,i,u)
 143  * -YA,<dir>      Change default directory searched for components
 144  * -YI,<dir>      Change default directory searched for include files
 145  * -YP,<dir>      Change default directory for finding libraries files
 146  * -YS,<dir>      Change default directory for startup object files
 147  */
 148 
 149 /*
 150  * Translation table:
 151  */
 152 /*
 153  * -#                           -v
 154  * -###                         error
 155  * -A<name[(tokens)]>             pass-thru
 156  * -B<[static|dynamic]>           pass-thru (syntax error for anything else)
 157  * -C                           pass-thru
 158  * -c                           pass-thru
 159  * -cg92                        -m32 -mcpu=v8 -mtune=supersparc (SPARC only)
 160  * -D<name[=token]>               pass-thru
 161  * -dy or -dn                   -Wl,-dy or -Wl,-dn
 162  * -E                           pass-thru
 163  * -erroff=E_EMPTY_TRANSLATION_UNIT ignore
 164  * -errtags=%all                -Wall
 165  * -errwarn=%all                -Werror else -Wno-error
 166  * -fast                        error
 167  * -fd                          error


 168  * -fnonstd                     error
 169  * -fns[=<yes|no>]                error
 170  * -fprecision=<p>                error
 171  * -fround=<r>                    error
 172  * -fsimple[=<n>]         error
 173  * -fsingle[=<n>]         error
 174  * -ftrap=<t>                     error
 175  * -fstore                      error
 176  * -G                           pass-thru
 177  * -g                           pass-thru
 178  * -H                           pass-thru
 179  * -h <name>                      pass-thru
 180  * -I<dir>                        pass-thru
 181  * -i                           pass-thru
 182  * -keeptmp                     -save-temps
 183  * -KPIC                        -fPIC
 184  * -Kpic                        -fpic
 185  * -L<dir>                        pass-thru
 186  * -l<name>                       pass-thru
 187  * -mc                          error
 188  * -mr                          error
 189  * -mr,"string"                 error
 190  * -mt                          -D_REENTRANT
 191  * -native                      error
 192  * -nofstore                    error
 193  * -nolib                       -nodefaultlibs

 194  * -norunpath                   ignore
 195  * -O                           -O1 (Check the man page to be certain)
 196  * -o <outputfile>                pass-thru
 197  * -P                           -E -o filename.i (or error)

 198  * -p                           pass-thru

 199  * -Q[y|n]                      error

 200  * -R<dir[:dir]>          pass-thru
 201  * -S                           pass-thru
 202  * -s                           -Wl,-s
 203  * -t                           -Wl,-t
 204  * -U<name>                       pass-thru
 205  * -V                           --version
 206  * -v                           -Wall
 207  * -Wa,<arg>                      pass-thru
 208  * -Wp,<arg>                      pass-thru except -xc99=<a>
 209  * -Wl,<arg>                      pass-thru
 210  * -W{m,0,2,h,i,u>           error/ignore

 211  * -xmodel=kernel               -ffreestanding -mcmodel=kernel -mno-red-zone
 212  * -Wu,-save_args               -msave-args
 213  * -w                           pass-thru
 214  * -Xa                          -std=iso9899:199409 or -ansi

 215  * -Xt                          error
 216  * -Xs                          -traditional -std=c89


 217  * -xarch=<a>                     table
 218  * -xbuiltin[=<b>]                -fbuiltin (-fno-builtin otherwise)
 219  * -xCC                         ignore

 220  * -xchip=<c>                     table
 221  * -xcode=<c>                     table
 222  * -xdebugformat=<format> ignore (always use dwarf-2 for gcc)
 223  * -xcrossfile[=<n>]              ignore
 224  * -xe                          error
 225  * -xF                          error
 226  * -xhelp=<f>                     error
 227  * -xildoff                     ignore
 228  * -xildon                      ignore
 229  * -xinline                     ignore
 230  * -xlibmieee                   error
 231  * -xlibmil                     error
 232  * -xlic_lib=sunperf            error


 233  * -xmaxopt=[...]               error


 234  * -xO<n>                 -O<n>
 235  * -xP                          error


 236  * -xprofile=<p>          error
 237  * -xregs=<r>                     table
 238  * -xs                          error
 239  * -xsb                         error
 240  * -xsbfast                     error
 241  * -xsfpconst                   error
 242  * -xspace                      ignore (-not -Os)
 243  * -xstrconst                   ignore
 244  * -xtarget=<t>                   table
 245  * -xtemp=<dir>                   error
 246  * -xtime                       error
 247  * -xtransition                 -Wtransition

 248  * -xunroll=n                   error
 249  * -W0,-xdbggen=no%usedonly     -fno-eliminate-unused-debug-symbols
 250  *                              -fno-eliminate-unused-debug-types
 251  * -Y<c>,<dir>                      error
 252  * -YA,<dir>                      error
 253  * -YI,<dir>                      -nostdinc -I<dir>
 254  * -YP,<dir>                      error
 255  * -YS,<dir>                      error
 256  */
 257 
 258 #include <ctype.h>
 259 #include <err.h>
 260 #include <errno.h>
 261 #include <fcntl.h>
 262 #include <getopt.h>
 263 #include <stdio.h>
 264 #include <stdlib.h>
 265 #include <string.h>
 266 #include <unistd.h>
 267 


 473         newae(h, "-Wextra");
 474 }
 475 
 476 static void
 477 optim_disable(struct aelist *h, int level)
 478 {
 479         if (level >= 2) {
 480                 newae(h, "-fno-strict-aliasing");
 481                 newae(h, "-fno-unit-at-a-time");
 482                 newae(h, "-fno-optimize-sibling-calls");
 483         }
 484 }
 485 
 486 /* ARGSUSED */
 487 static void
 488 Xamode(struct aelist __unused *h)
 489 {
 490 }
 491 
 492 static void












 493 Xsmode(struct aelist *h)
 494 {
 495         static int xsonce;
 496 
 497         if (xsonce++)
 498                 return;
 499 
 500         newae(h, "-traditional");
 501         newae(h, "-traditional-cpp");
 502 }
 503 
 504 static void
 505 usage()
 506 {
 507         extern char *__progname;
 508         (void) fprintf(stderr,
 509             "usage: %s [-C] [--versions] --primary <compiler> "
 510             "[--shadow <compiler>]... -- cflags...\n",
 511             __progname);
 512         (void) fprintf(stderr, "compilers take the form: name,path,style\n"


 653                                 newae(ctx->i_ae, strchr(arg, '=') + 1);
 654                                 continue;
 655                         }
 656                         if (strncmp(arg, "-compat=", 8) == 0) {
 657                                 /* discard -compat=4 and -compat=5 */
 658                                 continue;
 659                         }
 660                         if (strcmp(arg, "-Qoption") == 0) {
 661                                 /* discard -Qoption and its two arguments */
 662                                 if (ctx->i_oldargc < 3)
 663                                         error(arg);
 664                                 ctx->i_oldargc -= 2;
 665                                 ctx->i_oldargv += 2;
 666                                 continue;
 667                         }
 668                         if (strcmp(arg, "-xwe") == 0) {
 669                                 /* turn warnings into errors */
 670                                 newae(ctx->i_ae, "-Werror");
 671                                 continue;
 672                         }

















 673                         if (strcmp(arg, "-norunpath") == 0) {
 674                                 /* gcc has no corresponding option */
 675                                 continue;
 676                         }
 677                         if (strcmp(arg, "-nolib") == 0) {
 678                                 /* -nodefaultlibs is on by default */
 679                                 nolibc = 1;
 680                                 continue;
 681                         }
 682 #if defined(__sparc)
 683                         if (strcmp(arg, "-cg92") == 0) {
 684                                 mflag |= xlate_xtb(ctx->i_ae, "v8");
 685                                 xlate(ctx->i_ae, "super", xchip_tbl);
 686                                 continue;
 687                         }
 688 #endif  /* __sparc */
 689                 }
 690 
 691                 switch ((c = arg[1])) {
 692                 case '_':


 791                                 /*
 792                                  * Accept but ignore this -- gcc doesn't
 793                                  * seem to complain about empty translation
 794                                  * units
 795                                  */
 796                                 break;
 797                         }
 798                         /* XX64 -- ignore all -erroff= options, for now */
 799                         if (strncmp(arg, "-erroff=", 8) == 0)
 800                                 break;
 801                         if (strcmp(arg, "-errtags=yes") == 0) {
 802                                 warnings(ctx->i_ae);
 803                                 break;
 804                         }
 805                         if (strcmp(arg, "-errwarn=%all") == 0) {
 806                                 newae(ctx->i_ae, "-Werror");
 807                                 break;
 808                         }
 809                         error(arg);
 810                         break;














 811                 case 'G':
 812                         newae(ctx->i_ae, "-shared");
 813                         nolibc = 1;
 814                         break;
 815                 case 'k':
 816                         if (strcmp(arg, "-keeptmp") == 0) {
 817                                 newae(ctx->i_ae, "-save-temps");
 818                                 break;
 819                         }
 820                         error(arg);
 821                         break;
 822                 case 'K':
 823                         if (arglen == 1) {
 824                                 if ((arg = *++ctx->i_oldargv) == NULL ||
 825                                     *arg == '\0')
 826                                         error("-K");
 827                                 ctx->i_oldargc--;
 828                         } else {
 829                                 arg += 2;
 830                         }


 867                                 char *opt;
 868                                 size_t len;
 869                                 char *s;
 870 
 871                                 if (arglen == 1) {
 872                                         opt = *++ctx->i_oldargv;
 873                                         if (opt == NULL || *opt == '\0')
 874                                                 error(arg);
 875                                         ctx->i_oldargc--;
 876                                 } else {
 877                                         opt = arg + 2;
 878                                 }
 879                                 len = strlen(opt) + 7;
 880                                 if ((s = malloc(len)) == NULL)
 881                                         nomem();
 882                                 (void) snprintf(s, len, "-Wl,-%c%s", c, opt);
 883                                 newae(ctx->i_ae, s);
 884                                 free(s);
 885                         }
 886                         break;









 887                 case 'O':
 888                         if (arglen == 1) {
 889                                 newae(ctx->i_ae, "-O");
 890                                 break;
 891                         }
 892                         error(arg);
 893                         break;
 894                 case 'P':
 895                         /*
 896                          * We could do '-E -o filename.i', but that's hard,
 897                          * and we don't need it for the case that's triggering
 898                          * this addition.  We'll require the user to specify
 899                          * -o in the Makefile.  If they don't they'll find out
 900                          * in a hurry.
 901                          */
 902                         newae(ctx->i_ae, "-E");
 903                         op = CW_O_PREPROCESS;
 904                         nolibc = 1;
 905                         break;







 906                 case 's':
 907                         if (arglen == 1) {
 908                                 newae(ctx->i_ae, "-Wl,-s");
 909                                 break;
 910                         }
 911                         error(arg);
 912                         break;
 913                 case 't':
 914                         if (arglen == 1) {
 915                                 newae(ctx->i_ae, "-Wl,-t");
 916                                 break;
 917                         }
 918                         error(arg);
 919                         break;
 920                 case 'V':
 921                         if (arglen == 1) {
 922                                 ctx->i_flags &= ~CW_F_ECHO;
 923                                 newae(ctx->i_ae, "--version");
 924                                 break;
 925                         }


 929                         if (arglen == 1) {
 930                                 warnings(ctx->i_ae);
 931                                 break;
 932                         }
 933                         error(arg);
 934                         break;
 935                 case 'W':
 936                         if (strncmp(arg, "-Wp,-xc99", 9) == 0) {
 937                                 /*
 938                                  * gcc's preprocessor will accept c99
 939                                  * regardless, so accept and ignore.
 940                                  */
 941                                 break;
 942                         }
 943                         if (strncmp(arg, "-Wa,", 4) == 0 ||
 944                             strncmp(arg, "-Wp,", 4) == 0 ||
 945                             strncmp(arg, "-Wl,", 4) == 0) {
 946                                 newae(ctx->i_ae, arg);
 947                                 break;
 948                         }












 949                         if (strcmp(arg, "-W0,-noglobal") == 0 ||
 950                             strcmp(arg, "-W0,-xglobalstatic") == 0) {
 951                                 /*
 952                                  * gcc doesn't prefix local symbols
 953                                  * in debug mode, so this is not needed.
 954                                  */
 955                                 break;
 956                         }
 957                         if (strcmp(arg, "-W0,-Lt") == 0) {
 958                                 /*
 959                                  * Generate tests at the top of loops.
 960                                  * There is no direct gcc equivalent, ignore.
 961                                  */
 962                                 break;
 963                         }
 964                         if (strcmp(arg, "-W0,-xdbggen=no%usedonly") == 0) {
 965                                 newae(ctx->i_ae,
 966                                     "-fno-eliminate-unused-debug-symbols");
 967                                 newae(ctx->i_ae,
 968                                     "-fno-eliminate-unused-debug-types");
 969                                 break;
 970                         }
 971                         if (strcmp(arg, "-W2,-xwrap_int") == 0) {
 972                                 /*
 973                                  * Use the legacy behaviour (pre-SS11)
 974                                  * for integer wrapping.
 975                                  * gcc does not need this.
 976                                  */
 977                                 break;
 978                         }







 979                         if (strcmp(arg, "-Wd,-xsafe=unboundsym") == 0) {
 980                                 /*
 981                                  * Prevents optimizing away checks for
 982                                  * unbound weak symbol addresses.  gcc does
 983                                  * not do this, so it's not needed.
 984                                  */
 985                                 break;
 986                         }
 987                         if (strncmp(arg, "-Wc,-xcode=", 11) == 0) {
 988                                 xlate(ctx->i_ae, arg + 11, xcode_tbl);
 989                                 if (strncmp(arg + 11, "pic", 3) == 0)
 990                                         pic = 1;
 991                                 break;
 992                         }
 993                         if (strncmp(arg, "-Wc,-Qiselect", 13) == 0) {
 994                                 /*
 995                                  * Prevents insertion of register symbols.
 996                                  * gcc doesn't do this, so ignore it.
 997                                  */
 998                                 break;
 999                         }
1000                         if (strcmp(arg, "-Wc,-Qassembler-ounrefsym=0") == 0) {
1001                                 /*
1002                                  * Prevents optimizing away of static variables.
1003                                  * gcc does not do this, so it's not needed.
1004                                  */
1005                                 break;
1006                         }
1007 #if defined(__x86)







1008                         if (strcmp(arg, "-Wu,-save_args") == 0) {
1009                                 newae(ctx->i_ae, "-msave-args");
1010                                 break;
1011                         }
1012 #endif  /* __x86 */
1013                         error(arg);
1014                         break;
1015                 case 'X':
1016                         if (strcmp(arg, "-Xa") == 0 ||
1017                             strcmp(arg, "-Xt") == 0) {
1018                                 Xamode(ctx->i_ae);
1019                                 break;
1020                         }




1021                         if (strcmp(arg, "-Xs") == 0) {
1022                                 Xsmode(ctx->i_ae);
1023                                 break;
1024                         }
1025                         error(arg);
1026                         break;
1027                 case 'x':
1028                         if (arglen == 1)
1029                                 error(arg);
1030                         switch (arg[2]) {
















1031                         case 'a':
1032                                 if (strncmp(arg, "-xarch=", 7) == 0) {
1033                                         mflag |= xlate_xtb(ctx->i_ae, arg + 7);
1034                                         break;
1035                                 }
1036                                 error(arg);
1037                                 break;
1038                         case 'b':
1039                                 if (strncmp(arg, "-xbuiltin=", 10) == 0) {
1040                                         if (strcmp(arg + 10, "%all"))
1041                                                 newae(ctx->i_ae, "-fbuiltin");
1042                                         break;
1043                                 }
1044                                 error(arg);
1045                                 break;
1046                         case 'C':
1047                                 /* Accept C++ style comments -- ignore */
1048                                 if (strcmp(arg, "-xCC") == 0)
1049                                         break;
1050                                 error(arg);
1051                                 break;
1052                         case 'c':
1053                                 if (strncmp(arg, "-xc99=%all", 10) == 0) {
1054                                         newae(ctx->i_ae, "-std=gnu99");
1055                                         break;
1056                                 }
1057                                 if (strncmp(arg, "-xc99=%none", 11) == 0) {
1058                                         newae(ctx->i_ae, "-std=gnu89");
1059                                         break;
1060                                 }
1061                                 if (strncmp(arg, "-xchip=", 7) == 0) {
1062                                         xlate(ctx->i_ae, arg + 7, xchip_tbl);
1063                                         break;
1064                                 }
1065                                 if (strncmp(arg, "-xcode=", 7) == 0) {
1066                                         xlate(ctx->i_ae, arg + 7, xcode_tbl);
1067                                         if (strncmp(arg + 7, "pic", 3) == 0)
1068                                                 pic = 1;
1069                                         break;
1070                                 }


1071                                 if (strncmp(arg, "-xcrossfile", 11) == 0)
1072                                         break;
1073                                 error(arg);
1074                                 break;
1075                         case 'd':


1076                                 if (strncmp(arg, "-xdebugformat=", 14) == 0)
1077                                         break;
1078                                 error(arg);
1079                                 break;
1080                         case 'F':
1081                                 /*
1082                                  * Compile for mapfile reordering, or unused
1083                                  * section elimination, syntax can be -xF or
1084                                  * more complex, like -xF=%all -- ignore.
1085                                  */
1086                                 if (strncmp(arg, "-xF", 3) == 0)
1087                                         break;
1088                                 error(arg);
1089                                 break;
1090                         case 'i':
1091                                 if (strncmp(arg, "-xinline", 8) == 0)
1092                                         /* No inlining; ignore */
1093                                         break;
1094                                 if (strcmp(arg, "-xildon") == 0 ||
1095                                     strcmp(arg, "-xildoff") == 0)
1096                                         /* No incremental linking; ignore */
1097                                         break;
1098                                 error(arg);
1099                                 break;
1100 #if defined(__x86)
1101                         case 'm':
1102                                 if (strcmp(arg, "-xmodel=kernel") == 0) {
1103                                         newae(ctx->i_ae, "-ffreestanding");
1104                                         newae(ctx->i_ae, "-mno-red-zone");
1105                                         model = "-mcmodel=kernel";
1106                                         nolibc = 1;
1107                                         break;
1108                                 }
1109                                 error(arg);
1110                                 break;
1111 #endif  /* __x86 */


















1112                         case 'O':
1113                                 if (strncmp(arg, "-xO", 3) == 0) {
1114                                         size_t len = strlen(arg);
1115                                         char *s = NULL;
1116                                         int c = *(arg + 3);
1117                                         int level;
1118 
1119                                         if (len != 4 || !isdigit(c))
1120                                                 error(arg);
1121 
1122                                         level = atoi(arg + 3);
1123                                         if (level > 5)
1124                                                 error(arg);
1125                                         if (level >= 2) {
1126                                                 /*
1127                                                  * For gcc-3.4.x at -O2 we
1128                                                  * need to disable optimizations
1129                                                  * that break ON.
1130                                                  */
1131                                                 optim_disable(ctx->i_ae, level);
1132                                                 /*
1133                                                  * limit -xO3 to -O2 as well.
1134                                                  */
1135                                                 level = 2;
1136                                         }
1137                                         if (asprintf(&s, "-O%d", level) == -1)
1138                                                 nomem();
1139                                         newae(ctx->i_ae, s);
1140                                         free(s);
1141                                         break;
1142                                 }
1143                                 error(arg);
1144                                 break;











1145                         case 'r':
1146                                 if (strncmp(arg, "-xregs=", 7) == 0) {
1147                                         xlate(ctx->i_ae, arg + 7, xregs_tbl);
1148                                         break;
1149                                 }
1150                                 error(arg);
1151                                 break;
1152                         case 's':
1153                                 if (strcmp(arg, "-xs") == 0 ||
1154                                     strcmp(arg, "-xspace") == 0 ||
1155                                     strcmp(arg, "-xstrconst") == 0)
1156                                         break;
1157                                 error(arg);
1158                                 break;
1159                         case 't':












1160                                 if (strncmp(arg, "-xtarget=", 9) == 0) {
1161                                         xlate(ctx->i_ae, arg + 9, xtarget_tbl);
1162                                         break;
1163                                 }
1164                                 error(arg);
1165                                 break;
1166                         case 'e':
1167                         case 'h':
1168                         case 'l':
1169                         default:
1170                                 error(arg);
1171                                 break;
1172                         }
1173                         break;
1174                 case 'Y':
1175                         if (arglen == 1) {
1176                                 if ((arg = *++ctx->i_oldargv) == NULL ||
1177                                     *arg == '\0')
1178                                         error("-Y");
1179                                 ctx->i_oldargc--;