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-rwxr-xr-xscripts/namespace.pl147
1 files changed, 81 insertions, 66 deletions
diff --git a/scripts/namespace.pl b/scripts/namespace.pl
index 361d0f71184b..a71be6b7cdec 100755
--- a/scripts/namespace.pl
+++ b/scripts/namespace.pl
@@ -84,6 +84,64 @@ my %ksymtab = (); # names that appear in __ksymtab_
84my %ref = (); # $ref{$name} exists if there is a true external reference to $name 84my %ref = (); # $ref{$name} exists if there is a true external reference to $name
85my %export = (); # $export{$name} exists if there is an EXPORT_... of $name 85my %export = (); # $export{$name} exists if there is an EXPORT_... of $name
86 86
87my %nmexception = (
88 'fs/ext3/bitmap' => 1,
89 'fs/ext4/bitmap' => 1,
90 'arch/x86/lib/thunk_32' => 1,
91 'arch/x86/lib/cmpxchg' => 1,
92 'arch/x86/vdso/vdso32/note' => 1,
93 'lib/irq_regs' => 1,
94 'usr/initramfs_data' => 1,
95 'drivers/scsi/aic94xx/aic94xx_dump' => 1,
96 'drivers/scsi/libsas/sas_dump' => 1,
97 'lib/dec_and_lock' => 1,
98 'drivers/ide/ide-probe-mini' => 1,
99 'usr/initramfs_data' => 1,
100 'drivers/acpi/acpia/exdump' => 1,
101 'drivers/acpi/acpia/rsdump' => 1,
102 'drivers/acpi/acpia/nsdumpdv' => 1,
103 'drivers/acpi/acpia/nsdump' => 1,
104 'arch/ia64/sn/kernel/sn2/io' => 1,
105 'arch/ia64/kernel/gate-data' => 1,
106 'security/capability' => 1,
107 'fs/ntfs/sysctl' => 1,
108 'fs/jfs/jfs_debug' => 1,
109);
110
111my %nameexception = (
112 'mod_use_count_' => 1,
113 '__initramfs_end' => 1,
114 '__initramfs_start' => 1,
115 '_einittext' => 1,
116 '_sinittext' => 1,
117 'kallsyms_names' => 1,
118 'kallsyms_num_syms' => 1,
119 'kallsyms_addresses'=> 1,
120 '__this_module' => 1,
121 '_etext' => 1,
122 '_edata' => 1,
123 '_end' => 1,
124 '__bss_start' => 1,
125 '_text' => 1,
126 '_stext' => 1,
127 '__gp' => 1,
128 'ia64_unw_start' => 1,
129 'ia64_unw_end' => 1,
130 '__init_begin' => 1,
131 '__init_end' => 1,
132 '__bss_stop' => 1,
133 '__nosave_begin' => 1,
134 '__nosave_end' => 1,
135 'pg0' => 1,
136 'vdso_enabled' => 1,
137 '__stack_chk_fail' => 1,
138 'VDSO32_PRELINK' => 1,
139 'VDSO32_vsyscall' => 1,
140 'VDSO32_rt_sigreturn'=>1,
141 'VDSO32_sigreturn' => 1,
142);
143
144
87&find(\&linux_objects, '.'); # find the objects and do_nm on them 145&find(\&linux_objects, '.'); # find the objects and do_nm on them
88&list_multiply_defined(); 146&list_multiply_defined();
89&resolve_external_references(); 147&resolve_external_references();
@@ -105,7 +163,8 @@ sub linux_objects
105 if (/.*\.o$/ && 163 if (/.*\.o$/ &&
106 ! ( 164 ! (
107 m:/built-in.o$: 165 m:/built-in.o$:
108 || m:arch/x86/kernel/vsyscall-syms.o$: 166 || m:arch/x86/vdso/:
167 || m:arch/x86/boot/:
109 || m:arch/ia64/ia32/ia32.o$: 168 || m:arch/ia64/ia32/ia32.o$:
110 || m:arch/ia64/kernel/gate-syms.o$: 169 || m:arch/ia64/kernel/gate-syms.o$:
111 || m:arch/ia64/lib/__divdi3.o$: 170 || m:arch/ia64/lib/__divdi3.o$:
@@ -148,6 +207,7 @@ sub linux_objects
148 || m:^.*/\.tmp_: 207 || m:^.*/\.tmp_:
149 || m:^\.tmp_: 208 || m:^\.tmp_:
150 || m:/vmlinux-obj.o$: 209 || m:/vmlinux-obj.o$:
210 || m:^tools/:
151 ) 211 )
152 ) { 212 ) {
153 do_nm($basename, $_); 213 do_nm($basename, $_);
@@ -167,11 +227,11 @@ sub do_nm
167 printf STDERR "$fullname is not an object file\n"; 227 printf STDERR "$fullname is not an object file\n";
168 return; 228 return;
169 } 229 }
170 ($source = $fullname) =~ s/\.o$//; 230 ($source = $basename) =~ s/\.o$//;
171 if (-e "$objtree$source.c" || -e "$objtree$source.S") { 231 if (-e "$source.c" || -e "$source.S") {
172 $source = "$objtree$source"; 232 $source = "$objtree$File::Find::dir/$source";
173 } else { 233 } else {
174 $source = "$srctree$source"; 234 $source = "$srctree$File::Find::dir/$source";
175 } 235 }
176 if (! -e "$source.c" && ! -e "$source.S") { 236 if (! -e "$source.c" && ! -e "$source.S") {
177 # No obvious source, exclude the object if it is conglomerate 237 # No obvious source, exclude the object if it is conglomerate
@@ -214,6 +274,7 @@ sub do_nm
214 # T global label/procedure 274 # T global label/procedure
215 # U external reference 275 # U external reference
216 # W weak external reference to text that has been resolved 276 # W weak external reference to text that has been resolved
277 # V similar to W, but the value of the weak symbol becomes zero with no error.
217 # a assembler equate 278 # a assembler equate
218 # b static variable, uninitialised 279 # b static variable, uninitialised
219 # d static variable, initialised 280 # d static variable, initialised
@@ -222,8 +283,9 @@ sub do_nm
222 # s static variable, uninitialised, small bss 283 # s static variable, uninitialised, small bss
223 # t static label/procedures 284 # t static label/procedures
224 # w weak external reference to text that has not been resolved 285 # w weak external reference to text that has not been resolved
286 # v similar to w
225 # ? undefined type, used a lot by modules 287 # ? undefined type, used a lot by modules
226 if ($type !~ /^[ABCDGRSTUWabdgrstw?]$/) { 288 if ($type !~ /^[ABCDGRSTUWVabdgrstwv?]$/) {
227 printf STDERR "nm output for $fullname contains unknown type '$_'\n"; 289 printf STDERR "nm output for $fullname contains unknown type '$_'\n";
228 } 290 }
229 elsif ($name =~ /\./) { 291 elsif ($name =~ /\./) {
@@ -234,7 +296,7 @@ sub do_nm
234 # binutils keeps changing the type for exported symbols, force it to R 296 # binutils keeps changing the type for exported symbols, force it to R
235 $type = 'R' if ($name =~ /^__ksymtab/ || $name =~ /^__kstrtab/); 297 $type = 'R' if ($name =~ /^__ksymtab/ || $name =~ /^__kstrtab/);
236 $name =~ s/_R[a-f0-9]{8}$//; # module versions adds this 298 $name =~ s/_R[a-f0-9]{8}$//; # module versions adds this
237 if ($type =~ /[ABCDGRSTW]/ && 299 if ($type =~ /[ABCDGRSTWV]/ &&
238 $name ne 'init_module' && 300 $name ne 'init_module' &&
239 $name ne 'cleanup_module' && 301 $name ne 'cleanup_module' &&
240 $name ne 'Using_Versions' && 302 $name ne 'Using_Versions' &&
@@ -270,27 +332,9 @@ sub do_nm
270 close($nmdata); 332 close($nmdata);
271 333
272 if ($#nmdata < 0) { 334 if ($#nmdata < 0) {
273 if ( 335 printf "No nm data for $fullname\n"
274 $fullname ne "lib/brlock.o" 336 unless $nmexception{$fullname};
275 && $fullname ne "lib/dec_and_lock.o" 337 return;
276 && $fullname ne "fs/xfs/xfs_macros.o"
277 && $fullname ne "drivers/ide/ide-probe-mini.o"
278 && $fullname ne "usr/initramfs_data.o"
279 && $fullname ne "drivers/acpi/executer/exdump.o"
280 && $fullname ne "drivers/acpi/resources/rsdump.o"
281 && $fullname ne "drivers/acpi/namespace/nsdumpdv.o"
282 && $fullname ne "drivers/acpi/namespace/nsdump.o"
283 && $fullname ne "arch/ia64/sn/kernel/sn2/io.o"
284 && $fullname ne "arch/ia64/kernel/gate-data.o"
285 && $fullname ne "drivers/ieee1394/oui.o"
286 && $fullname ne "security/capability.o"
287 && $fullname ne "sound/core/wrappers.o"
288 && $fullname ne "fs/ntfs/sysctl.o"
289 && $fullname ne "fs/jfs/jfs_debug.o"
290 ) {
291 printf "No nm data for $fullname\n";
292 }
293 return;
294 } 338 }
295 $nmdata{$fullname} = \@nmdata; 339 $nmdata{$fullname} = \@nmdata;
296} 340}
@@ -319,18 +363,14 @@ sub list_multiply_defined
319 foreach my $name (keys(%def)) { 363 foreach my $name (keys(%def)) {
320 if ($#{$def{$name}} > 0) { 364 if ($#{$def{$name}} > 0) {
321 # Special case for cond_syscall 365 # Special case for cond_syscall
322 if ($#{$def{$name}} == 1 && $name =~ /^sys_/ && 366 if ($#{$def{$name}} == 1 &&
323 ($def{$name}[0] eq "kernel/sys.o" || 367 ($name =~ /^sys_/ || $name =~ /^compat_sys_/ ||
324 $def{$name}[1] eq "kernel/sys.o")) { 368 $name =~ /^sys32_/)) {
325 &drop_def("kernel/sys.o", $name); 369 if($def{$name}[0] eq "kernel/sys_ni.o" ||
326 next; 370 $def{$name}[1] eq "kernel/sys_ni.o") {
327 } 371 &drop_def("kernel/sys_ni.o", $name);
328 # Special case for i386 entry code 372 next;
329 if ($#{$def{$name}} == 1 && $name =~ /^__kernel_/ && 373 }
330 $def{$name}[0] eq "arch/x86/kernel/vsyscall-int80_32.o" &&
331 $def{$name}[1] eq "arch/x86/kernel/vsyscall-sysenter_32.o") {
332 &drop_def("arch/x86/kernel/vsyscall-sysenter_32.o", $name);
333 next;
334 } 374 }
335 375
336 printf "$name is multiply defined in :-\n"; 376 printf "$name is multiply defined in :-\n";
@@ -372,31 +412,7 @@ sub resolve_external_references
372 $ref{$name} = "" 412 $ref{$name} = ""
373 } 413 }
374 } 414 }
375 elsif ( $name ne "mod_use_count_" 415 elsif ( ! $nameexception{$name}
376 && $name ne "__initramfs_end"
377 && $name ne "__initramfs_start"
378 && $name ne "_einittext"
379 && $name ne "_sinittext"
380 && $name ne "kallsyms_names"
381 && $name ne "kallsyms_num_syms"
382 && $name ne "kallsyms_addresses"
383 && $name ne "__this_module"
384 && $name ne "_etext"
385 && $name ne "_edata"
386 && $name ne "_end"
387 && $name ne "__bss_start"
388 && $name ne "_text"
389 && $name ne "_stext"
390 && $name ne "__gp"
391 && $name ne "ia64_unw_start"
392 && $name ne "ia64_unw_end"
393 && $name ne "__init_begin"
394 && $name ne "__init_end"
395 && $name ne "__bss_stop"
396 && $name ne "__nosave_begin"
397 && $name ne "__nosave_end"
398 && $name ne "pg0"
399 && $name ne "__module_text_address"
400 && $name !~ /^__sched_text_/ 416 && $name !~ /^__sched_text_/
401 && $name !~ /^__start_/ 417 && $name !~ /^__start_/
402 && $name !~ /^__end_/ 418 && $name !~ /^__end_/
@@ -407,7 +423,6 @@ sub resolve_external_references
407 && $name !~ /^__.*per_cpu_end/ 423 && $name !~ /^__.*per_cpu_end/
408 && $name !~ /^__alt_instructions/ 424 && $name !~ /^__alt_instructions/
409 && $name !~ /^__setup_/ 425 && $name !~ /^__setup_/
410 && $name !~ /^jiffies/
411 && $name !~ /^__mod_timer/ 426 && $name !~ /^__mod_timer/
412 && $name !~ /^__mod_page_state/ 427 && $name !~ /^__mod_page_state/
413 && $name !~ /^init_module/ 428 && $name !~ /^init_module/
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-29 11:36:17 -0400