123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358 |
- #!/usr/bin/perl -w
- # -----------------------------------------------------------------------------
- use strict;
- use warnings;
- my $cc = $ENV{'REAL_CC'} || 'cc';
- my $check = $ENV{'CHECK'} || 'sparse';
- my $ccom = $cc;
- my $m32 = 0;
- my $m64 = 0;
- my $has_specs = 0;
- my $gendeps = 0;
- my $do_check = 0;
- my $do_compile = 1;
- my $gcc_base_dir;
- my $multiarch_dir;
- my $verbose = 0;
- my $nargs = 0;
- while (@ARGV) {
- $_ = shift(@ARGV);
- if ($nargs) {
- $nargs--;
- goto add_option;
- }
- # Look for a .c file. We don't want to run the checker on .o or .so files
- # in the link run.
- $do_check = 1 if /^[^-].*\.c$/;
- # Ditto for stdin.
- $do_check = 1 if $_ eq '-';
- if (/^-(o|MF|MT|MQ)$/) {
- # Need to be checked explicitly since otherwise
- # the argument would be processed as a
- # (non-existant) source file or as an option.
- die ("$0: missing argument for $_") if !@ARGV;
- $nargs = 1;
- }
- # Ignore the extension if '-x c' is given.
- if ($_ eq '-x') {
- die ("$0: missing argument for $_") if !@ARGV;
- die ("$0: invalid argument for $_") if $ARGV[0] ne 'c';
- $do_check = 1;
- $nargs = 1;
- }
- $m32 = 1 if /^-m32$/;
- $m64 = 1 if /^-m64$/;
- $gendeps = 1 if /^-(M|MM)$/;
- if (/^-target=(.*)$/) {
- $check .= &add_specs ($1);
- $has_specs = 1;
- next;
- }
- if ($_ eq '-no-compile') {
- $do_compile = 0;
- next;
- }
- if (/^-gcc-base-dir$/) {
- $gcc_base_dir = shift @ARGV;
- die ("$0: missing argument for -gcc-base-dir option") if !$gcc_base_dir;
- next;
- }
- if (/^-multiarch-dir$/) {
- $multiarch_dir = shift @ARGV;
- die ("$0: missing argument for -multiarch-dir option") if !$multiarch_dir;
- next;
- }
- # If someone adds "-E", don't pre-process twice.
- $do_compile = 0 if $_ eq '-E';
- $verbose = 1 if $_ eq '-v';
- add_option:
- my $this_arg = ' ' . "e_arg ($_);
- $cc .= $this_arg unless &check_only_option ($_);
- $check .= $this_arg;
- }
- if ($gendeps) {
- $do_compile = 1;
- $do_check = 0;
- }
- if ($do_check) {
- if (!$has_specs) {
- $check .= &add_specs ('host_arch_specs');
- $check .= &add_specs ('host_os_specs');
- }
- $gcc_base_dir = qx($ccom -print-file-name=) if !$gcc_base_dir;
- chomp($gcc_base_dir); # possibly remove '\n' from compiler
- $check .= " -gcc-base-dir " . $gcc_base_dir if $gcc_base_dir;
- $multiarch_dir = qx($ccom -print-multiarch) if ! defined $multiarch_dir;
- chomp($multiarch_dir); # possibly remove '\n' from compiler
- $check .= " -multiarch-dir " . $multiarch_dir if $multiarch_dir;
- print "$check\n" if $verbose;
- if ($do_compile) {
- system ($check) == 0 or exit 1;
- } else {
- exec ($check);
- }
- }
- if ($do_compile) {
- print "$cc\n" if $verbose;
- exec ($cc);
- }
- exit 0;
- # -----------------------------------------------------------------------------
- # Check if an option is for "check" only.
- sub check_only_option {
- my ($arg) = @_;
- return 1 if $arg =~ /^-W(no-?)?(address-space|bitwise|cast-to-as|cast-truncate|constant-suffix|context|decl|default-bitfield-sign|designated-init|do-while|enum-mismatch|external-function-has-definition|init-cstring|memcpy-max-count|non-pointer-null|old-initializer|one-bit-signed-bitfield|override-init-all|paren-string|ptr-subtraction-blows|return-void|sizeof-bool|sparse-all|sparse-error|transparent-union|typesign|undef|unknown-attribute)$/;
- return 1 if $arg =~ /^-v(no-?)?(entry|dead)$/;
- return 1 if $arg =~ /^-f(dump-ir|memcpy-max-count|diagnostic-prefix)(=\S*)?$/;
- return 1 if $arg =~ /^-f(mem2reg|optim)(-enable|-disable|=last)?$/;
- return 1 if $arg =~ /^-msize-(long|llp64)$/;
- return 0;
- }
- # -----------------------------------------------------------------------------
- # Simple arg-quoting function. Just adds backslashes when needed.
- sub quote_arg {
- my ($arg) = @_;
- return "''" if $arg eq '';
- return join ('',
- map {
- m|^[-a-zA-Z0-9._/,=]+$| ? $_ : "\\" . $_;
- } (split (//, $arg)));
- }
- # -----------------------------------------------------------------------------
- sub float_types {
- my ($has_inf,$has_qnan,$dec_dig,@bitsizes) = @_;
- my $result = " -D__FLT_RADIX__=2";
- $result .= " -D__FINITE_MATH_ONLY__=" . ($has_inf || $has_qnan ? '0' : '1');
- $result .= " -D__DECIMAL_DIG__=$dec_dig";
- my %constants =
- (24 =>
- {
- 'MIN' => '1.17549435e-38',
- 'MAX' => '3.40282347e+38',
- 'EPSILON' => '1.19209290e-7',
- 'DENORM_MIN' => '1.40129846e-45',
- },
- 53 =>
- {
- 'MIN' => '2.2250738585072014e-308',
- 'MAX' => '1.7976931348623157e+308',
- 'EPSILON' => '2.2204460492503131e-16',
- 'DENORM_MIN' => '4.9406564584124654e-324',
- },
- 64 =>
- {
- 'MIN' => '3.36210314311209350626e-4932',
- 'MAX' => '1.18973149535723176502e+4932',
- 'EPSILON' => '1.08420217248550443401e-19',
- 'DENORM_MIN' => '3.64519953188247460253e-4951',
- },
- 113 =>
- {
- 'MIN' => '3.36210314311209350626267781732175260e-4932',
- 'MAX' => '1.18973149535723176508575932662800702e+4932',
- 'EPSILON' => '1.92592994438723585305597794258492732e-34',
- 'DENORM_MIN' => '6.47517511943802511092443895822764655e-4966',
- },
- );
- my @types = (['FLT','F'], ['DBL',''], ['LDBL','L']);
- while (@types) {
- my ($mant_bits,$exp_bits) = @{ shift @bitsizes };
- my ($name,$suffix) = @{ shift @types };
- my $h = $constants{$mant_bits};
- die "$0: weird number of mantissa bits." unless $h;
- my $mant_dig = int (($mant_bits - 1) * log (2) / log (10));
- my $max_exp = 1 << ($exp_bits - 1);
- my $min_exp = 3 - $max_exp;
- my $max_10_exp = int ($max_exp * log (2) / log (10));
- my $min_10_exp = -int (-$min_exp * log (2) / log (10));
- $result .= " -D__${name}_MANT_DIG__=$mant_bits";
- $result .= " -D__${name}_DIG__=$mant_dig";
- $result .= " -D__${name}_MIN_EXP__='($min_exp)'";
- $result .= " -D__${name}_MAX_EXP__=$max_exp";
- $result .= " -D__${name}_MIN_10_EXP__='($min_10_exp)'";
- $result .= " -D__${name}_MAX_10_EXP__=$max_10_exp";
- $result .= " -D__${name}_HAS_INFINITY__=" . ($has_inf ? '1' : '0');
- $result .= " -D__${name}_HAS_QUIET_NAN__=" . ($has_qnan ? '1' : '0');;
- foreach my $inf (sort keys %$h) {
- $result .= " -D__${name}_${inf}__=" . $h->{$inf} . $suffix;
- }
- }
- return $result;
- }
- # -----------------------------------------------------------------------------
- sub add_specs {
- my ($spec) = @_;
- if ($spec eq 'sunos') {
- return " --os=$spec" .
- ' -DSVR4=1' .
- ' -D__STDC__=0' .
- ' -D_REENTRANT' .
- ' -D_SOLARIS_THREADS' .
- ' -DNULL="((void *)0)"';
- } elsif ($spec eq 'linux') {
- return " --os=$spec";
- } elsif ($spec eq 'gnu/kfreebsd') {
- return &add_specs ('unix') .
- ' -D__FreeBSD_kernel__=1';
- } elsif ($spec eq 'openbsd') {
- return " --os=$spec";
- } elsif ($spec eq 'freebsd') {
- return " --os=$spec";
- } elsif ($spec eq 'netbsd') {
- return " --os=$spec";
- } elsif ($spec eq 'darwin') {
- return " --os=$spec";
- } elsif ($spec eq 'gnu') { # Hurd
- return &add_specs ('unix') . # So, GNU is Unix, uh?
- ' -D__GNU__=1 -D__gnu_hurd__=1 -D__MACH__=1';
- } elsif ($spec eq 'unix') {
- return ' -Dunix=1 -D__unix=1 -D__unix__=1';
- } elsif ( $spec =~ /^cygwin/) {
- return ' --os=cygwin';
- } elsif ($spec eq 'i386') {
- $m32 = 1;
- return (
- ' --arch=i386' .
- &float_types (1, 1, 21, [24,8], [53,11], [64,15]));
- } elsif ($spec eq 'sparc') {
- return (
- ' --arch=sparc' .
- &float_types (1, 1, 33, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'sparc64') {
- return (
- ' --arch=sparc64' .
- &float_types (1, 1, 33, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'x86_64') {
- return (' --arch=x86_64' .
- &float_types (1, 1, 33, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'ppc') {
- return (' --arch=ppc' .
- &float_types (1, 1, 21, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'ppc64') {
- return (
- ' --arch=ppc64' .
- &float_types (1, 1, 21, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'ppc64be') {
- return &add_specs ('ppc64') . ' -mbig-endian -D_CALL_ELF=1';
- } elsif ($spec eq 'ppc64le') {
- return &add_specs ('ppc64') . ' -mlittle-endian -D_CALL_ELF=2';
- } elsif ($spec eq 's390x') {
- return (' -D_BIG_ENDIAN' .
- ' --arch=s390x' .
- &float_types (1, 1, 36, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'riscv32') {
- return (' --arch=riscv32' .
- &float_types (1, 1, 33, [24,8], [53,11], [53,11]));
- } elsif ($spec eq 'riscv64') {
- return (' --arch=riscv64' .
- &float_types (1, 1, 33, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'arm') {
- return (' --arch=arm' .
- &float_types (1, 1, 36, [24,8], [53,11], [53, 11]));
- } elsif ($spec eq 'arm+hf') {
- return &add_specs ('arm') . ' -mfloat-abi=hard';
- } elsif ($spec eq 'aarch64') {
- return (' --arch=aarch64' .
- &float_types (1, 1, 36, [24,8], [53,11], [113,15]));
- } elsif ($spec eq 'host_os_specs') {
- my $os = `uname -s`;
- chomp $os;
- return &add_specs (lc $os);
- } elsif ($spec eq 'host_arch_specs') {
- my $gccmachine;
- my $arch;
- $gccmachine = `$ccom -dumpmachine`;
- chomp $gccmachine;
- if ($gccmachine =~ '^aarch64-') {
- return &add_specs ('aarch64');
- } elsif ($gccmachine =~ '^arm-.*eabihf$') {
- return &add_specs ('arm+hf');
- } elsif ($gccmachine =~ '^arm-') {
- return &add_specs ('arm');
- } elsif ($gccmachine =~ '^i[23456]86-') {
- return &add_specs ('i386');
- } elsif ($gccmachine =~ '^(powerpc|ppc)64le-') {
- return &add_specs ('ppc64le');
- } elsif ($gccmachine =~ '^s390x-') {
- return &add_specs ('s390x');
- } elsif ($gccmachine eq 'x86_64-linux-gnux32') {
- return &add_specs ('x86_64') . ' -mx32';
- } elsif ($gccmachine =~ '^x86_64-') {
- return &add_specs ('x86_64');
- }
- # fall back to uname -m to determine the specifics.
- # Note: this is only meaningful when using natively
- # since information about the host is used to
- # guess characteristics of the target.
- $arch = `uname -m`;
- chomp $arch;
- if ($arch =~ /^(i.?86|athlon)$/i) {
- return &add_specs ('i386');
- } elsif ($arch =~ /^(sun4u)$/i) {
- return &add_specs ('sparc');
- } elsif ($arch =~ /^(x86_64)$/i) {
- return &add_specs ('x86_64');
- } elsif ($arch =~ /^(ppc)$/i) {
- return &add_specs ('ppc');
- } elsif ($arch =~ /^(ppc64)$/i) {
- return &add_specs ('ppc64be');
- } elsif ($arch =~ /^(ppc64le)$/i) {
- return &add_specs ('ppc64le');
- } elsif ($arch =~ /^(s390x)$/i) {
- return &add_specs ('s390x');
- } elsif ($arch =~ /^(sparc64)$/i) {
- return &add_specs ('sparc64');
- } elsif ($arch =~ /^arm(?:v[78]l)?$/i) {
- return &add_specs ('arm');
- } elsif ($arch =~ /^(aarch64)$/i) {
- return &add_specs ('aarch64');
- }
- } else {
- die "$0: invalid specs: $spec\n";
- }
- }
- # -----------------------------------------------------------------------------
|