diff options
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/bloat-o-meter | 3 | ||||
| -rwxr-xr-x | scripts/checkpatch.pl | 38 | ||||
| -rw-r--r-- | scripts/gdb/linux/mm.py | 222 | ||||
| -rw-r--r-- | scripts/gdb/vmlinux-gdb.py | 1 | ||||
| -rw-r--r-- | scripts/spelling.txt | 17 | ||||
| -rwxr-xr-x | scripts/tags.sh | 10 |
6 files changed, 279 insertions, 12 deletions
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter index f9553f60a14a..36303afa9dfc 100755 --- a/scripts/bloat-o-meter +++ b/scripts/bloat-o-meter @@ -80,8 +80,7 @@ def calc(oldfile, newfile, format): if d<0: shrink, down = shrink+1, down-d delta.append((d, name)) - delta.sort() - delta.reverse() + delta.sort(reverse=True) return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot def print_result(symboltype, symbolformat): diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 78cc595b98ce..bd44d12965c9 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -823,7 +823,9 @@ our %deprecated_apis = ( "get_state_synchronize_sched" => "get_state_synchronize_rcu", "cond_synchronize_sched" => "cond_synchronize_rcu", "kmap" => "kmap_local_page", + "kunmap" => "kunmap_local", "kmap_atomic" => "kmap_local_page", + "kunmap_atomic" => "kunmap_local", ); #Create a search pattern for all these strings to speed up a loop below @@ -3142,21 +3144,33 @@ sub process { if ($sign_off =~ /^co-developed-by:$/i) { if ($email eq $author) { WARN("BAD_SIGN_OFF", - "Co-developed-by: should not be used to attribute nominal patch author '$author'\n" . "$here\n" . $rawline); + "Co-developed-by: should not be used to attribute nominal patch author '$author'\n" . $herecurr); } if (!defined $lines[$linenr]) { WARN("BAD_SIGN_OFF", - "Co-developed-by: must be immediately followed by Signed-off-by:\n" . "$here\n" . $rawline); - } elsif ($rawlines[$linenr] !~ /^\s*signed-off-by:\s*(.*)/i) { + "Co-developed-by: must be immediately followed by Signed-off-by:\n" . $herecurr); + } elsif ($rawlines[$linenr] !~ /^signed-off-by:\s*(.*)/i) { WARN("BAD_SIGN_OFF", - "Co-developed-by: must be immediately followed by Signed-off-by:\n" . "$here\n" . $rawline . "\n" .$rawlines[$linenr]); + "Co-developed-by: must be immediately followed by Signed-off-by:\n" . $herecurr . $rawlines[$linenr] . "\n"); } elsif ($1 ne $email) { WARN("BAD_SIGN_OFF", - "Co-developed-by and Signed-off-by: name/email do not match \n" . "$here\n" . $rawline . "\n" .$rawlines[$linenr]); + "Co-developed-by and Signed-off-by: name/email do not match\n" . $herecurr . $rawlines[$linenr] . "\n"); + } + } + +# check if Reported-by: is followed by a Link: + if ($sign_off =~ /^reported(?:|-and-tested)-by:$/i) { + if (!defined $lines[$linenr]) { + WARN("BAD_REPORTED_BY_LINK", + "Reported-by: should be immediately followed by Link: to the report\n" . $herecurr . $rawlines[$linenr] . "\n"); + } elsif ($rawlines[$linenr] !~ m{^link:\s*https?://}i) { + WARN("BAD_REPORTED_BY_LINK", + "Reported-by: should be immediately followed by Link: with a URL to the report\n" . $herecurr . $rawlines[$linenr] . "\n"); } } } + # Check Fixes: styles is correct if (!$in_header_lines && $line =~ /^\s*fixes:?\s*(?:commit\s*)?[0-9a-f]{5,}\b/i) { @@ -3250,6 +3264,18 @@ sub process { $commit_log_possible_stack_dump = 0; } +# Check for odd tags before a URI/URL + if ($in_commit_log && + $line =~ /^\s*(\w+):\s*http/ && $1 ne 'Link') { + if ($1 =~ /^v(?:ersion)?\d+/i) { + WARN("COMMIT_LOG_VERSIONING", + "Patch version information should be after the --- line\n" . $herecurr); + } else { + WARN("COMMIT_LOG_USE_LINK", + "Unknown link reference '$1:', use 'Link:' instead\n" . $herecurr); + } + } + # Check for lines starting with a # if ($in_commit_log && $line =~ /^#/) { if (WARN("COMMIT_COMMENT_SYMBOL", @@ -3725,7 +3751,7 @@ sub process { } # check for embedded filenames - if ($rawline =~ /^\+.*\Q$realfile\E/) { + if ($rawline =~ /^\+.*\b\Q$realfile\E\b/) { WARN("EMBEDDED_FILENAME", "It's generally not useful to have the filename in the file\n" . $herecurr); } diff --git a/scripts/gdb/linux/mm.py b/scripts/gdb/linux/mm.py new file mode 100644 index 000000000000..30d837f3dfae --- /dev/null +++ b/scripts/gdb/linux/mm.py @@ -0,0 +1,222 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# gdb helper commands and functions for Linux kernel debugging +# +# routines to introspect page table +# +# Authors: +# Dmitrii Bundin <dmitrii.bundin.a@gmail.com> +# + +import gdb + +from linux import utils + +PHYSICAL_ADDRESS_MASK = gdb.parse_and_eval('0xfffffffffffff') + + +def page_mask(level=1): + # 4KB + if level == 1: + return gdb.parse_and_eval('(u64) ~0xfff') + # 2MB + elif level == 2: + return gdb.parse_and_eval('(u64) ~0x1fffff') + # 1GB + elif level == 3: + return gdb.parse_and_eval('(u64) ~0x3fffffff') + else: + raise Exception(f'Unknown page level: {level}') + + +#page_offset_base in case CONFIG_DYNAMIC_MEMORY_LAYOUT is disabled +POB_NO_DYNAMIC_MEM_LAYOUT = '0xffff888000000000' +def _page_offset_base(): + pob_symbol = gdb.lookup_global_symbol('page_offset_base') + pob = pob_symbol.name if pob_symbol else POB_NO_DYNAMIC_MEM_LAYOUT + return gdb.parse_and_eval(pob) + + +def is_bit_defined_tupled(data, offset): + return offset, bool(data >> offset & 1) + +def content_tupled(data, bit_start, bit_end): + return (bit_start, bit_end), data >> bit_start & ((1 << (1 + bit_end - bit_start)) - 1) + +def entry_va(level, phys_addr, translating_va): + def start_bit(level): + if level == 5: + return 48 + elif level == 4: + return 39 + elif level == 3: + return 30 + elif level == 2: + return 21 + elif level == 1: + return 12 + else: + raise Exception(f'Unknown level {level}') + + entry_offset = ((translating_va >> start_bit(level)) & 511) * 8 + entry_va = _page_offset_base() + phys_addr + entry_offset + return entry_va + +class Cr3(): + def __init__(self, cr3, page_levels): + self.cr3 = cr3 + self.page_levels = page_levels + self.page_level_write_through = is_bit_defined_tupled(cr3, 3) + self.page_level_cache_disabled = is_bit_defined_tupled(cr3, 4) + self.next_entry_physical_address = cr3 & PHYSICAL_ADDRESS_MASK & page_mask() + + def next_entry(self, va): + next_level = self.page_levels + return PageHierarchyEntry(entry_va(next_level, self.next_entry_physical_address, va), next_level) + + def mk_string(self): + return f"""\ +cr3: + {'cr3 binary data': <30} {hex(self.cr3)} + {'next entry physical address': <30} {hex(self.next_entry_physical_address)} + --- + {'bit' : <4} {self.page_level_write_through[0]: <10} {'page level write through': <30} {self.page_level_write_through[1]} + {'bit' : <4} {self.page_level_cache_disabled[0]: <10} {'page level cache disabled': <30} {self.page_level_cache_disabled[1]} +""" + + +class PageHierarchyEntry(): + def __init__(self, address, level): + data = int.from_bytes( + memoryview(gdb.selected_inferior().read_memory(address, 8)), + "little" + ) + if level == 1: + self.is_page = True + self.entry_present = is_bit_defined_tupled(data, 0) + self.read_write = is_bit_defined_tupled(data, 1) + self.user_access_allowed = is_bit_defined_tupled(data, 2) + self.page_level_write_through = is_bit_defined_tupled(data, 3) + self.page_level_cache_disabled = is_bit_defined_tupled(data, 4) + self.entry_was_accessed = is_bit_defined_tupled(data, 5) + self.dirty = is_bit_defined_tupled(data, 6) + self.pat = is_bit_defined_tupled(data, 7) + self.global_translation = is_bit_defined_tupled(data, 8) + self.page_physical_address = data & PHYSICAL_ADDRESS_MASK & page_mask(level) + self.next_entry_physical_address = None + self.hlat_restart_with_ordinary = is_bit_defined_tupled(data, 11) + self.protection_key = content_tupled(data, 59, 62) + self.executed_disable = is_bit_defined_tupled(data, 63) + else: + page_size = is_bit_defined_tupled(data, 7) + page_size_bit = page_size[1] + self.is_page = page_size_bit + self.entry_present = is_bit_defined_tupled(data, 0) + self.read_write = is_bit_defined_tupled(data, 1) + self.user_access_allowed = is_bit_defined_tupled(data, 2) + self.page_level_write_through = is_bit_defined_tupled(data, 3) + self.page_level_cache_disabled = is_bit_defined_tupled(data, 4) + self.entry_was_accessed = is_bit_defined_tupled(data, 5) + self.page_size = page_size + self.dirty = is_bit_defined_tupled( + data, 6) if page_size_bit else None + self.global_translation = is_bit_defined_tupled( + data, 8) if page_size_bit else None + self.pat = is_bit_defined_tupled( + data, 12) if page_size_bit else None + self.page_physical_address = data & PHYSICAL_ADDRESS_MASK & page_mask(level) if page_size_bit else None + self.next_entry_physical_address = None if page_size_bit else data & PHYSICAL_ADDRESS_MASK & page_mask() + self.hlat_restart_with_ordinary = is_bit_defined_tupled(data, 11) + self.protection_key = content_tupled(data, 59, 62) if page_size_bit else None + self.executed_disable = is_bit_defined_tupled(data, 63) + self.address = address + self.page_entry_binary_data = data + self.page_hierarchy_level = level + + def next_entry(self, va): + if self.is_page or not self.entry_present[1]: + return None + + next_level = self.page_hierarchy_level - 1 + return PageHierarchyEntry(entry_va(next_level, self.next_entry_physical_address, va), next_level) + + + def mk_string(self): + if not self.entry_present[1]: + return f"""\ +level {self.page_hierarchy_level}: + {'entry address': <30} {hex(self.address)} + {'page entry binary data': <30} {hex(self.page_entry_binary_data)} + --- + PAGE ENTRY IS NOT PRESENT! +""" + elif self.is_page: + def page_size_line(ps_bit, ps, level): + return "" if level == 1 else f"{'bit': <3} {ps_bit: <5} {'page size': <30} {ps}" + + return f"""\ +level {self.page_hierarchy_level}: + {'entry address': <30} {hex(self.address)} + {'page entry binary data': <30} {hex(self.page_entry_binary_data)} + {'page size': <30} {'1GB' if self.page_hierarchy_level == 3 else '2MB' if self.page_hierarchy_level == 2 else '4KB' if self.page_hierarchy_level == 1 else 'Unknown page size for level:' + self.page_hierarchy_level} + {'page physical address': <30} {hex(self.page_physical_address)} + --- + {'bit': <4} {self.entry_present[0]: <10} {'entry present': <30} {self.entry_present[1]} + {'bit': <4} {self.read_write[0]: <10} {'read/write access allowed': <30} {self.read_write[1]} + {'bit': <4} {self.user_access_allowed[0]: <10} {'user access allowed': <30} {self.user_access_allowed[1]} + {'bit': <4} {self.page_level_write_through[0]: <10} {'page level write through': <30} {self.page_level_write_through[1]} + {'bit': <4} {self.page_level_cache_disabled[0]: <10} {'page level cache disabled': <30} {self.page_level_cache_disabled[1]} + {'bit': <4} {self.entry_was_accessed[0]: <10} {'entry has been accessed': <30} {self.entry_was_accessed[1]} + {"" if self.page_hierarchy_level == 1 else f"{'bit': <4} {self.page_size[0]: <10} {'page size': <30} {self.page_size[1]}"} + {'bit': <4} {self.dirty[0]: <10} {'page dirty': <30} {self.dirty[1]} + {'bit': <4} {self.global_translation[0]: <10} {'global translation': <30} {self.global_translation[1]} + {'bit': <4} {self.hlat_restart_with_ordinary[0]: <10} {'restart to ordinary': <30} {self.hlat_restart_with_ordinary[1]} + {'bit': <4} {self.pat[0]: <10} {'pat': <30} {self.pat[1]} + {'bits': <4} {str(self.protection_key[0]): <10} {'protection key': <30} {self.protection_key[1]} + {'bit': <4} {self.executed_disable[0]: <10} {'execute disable': <30} {self.executed_disable[1]} +""" + else: + return f"""\ +level {self.page_hierarchy_level}: + {'entry address': <30} {hex(self.address)} + {'page entry binary data': <30} {hex(self.page_entry_binary_data)} + {'next entry physical address': <30} {hex(self.next_entry_physical_address)} + --- + {'bit': <4} {self.entry_present[0]: <10} {'entry present': <30} {self.entry_present[1]} + {'bit': <4} {self.read_write[0]: <10} {'read/write access allowed': <30} {self.read_write[1]} + {'bit': <4} {self.user_access_allowed[0]: <10} {'user access allowed': <30} {self.user_access_allowed[1]} + {'bit': <4} {self.page_level_write_through[0]: <10} {'page level write through': <30} {self.page_level_write_through[1]} + {'bit': <4} {self.page_level_cache_disabled[0]: <10} {'page level cache disabled': <30} {self.page_level_cache_disabled[1]} + {'bit': <4} {self.entry_was_accessed[0]: <10} {'entry has been accessed': <30} {self.entry_was_accessed[1]} + {'bit': <4} {self.page_size[0]: <10} {'page size': <30} {self.page_size[1]} + {'bit': <4} {self.hlat_restart_with_ordinary[0]: <10} {'restart to ordinary': <30} {self.hlat_restart_with_ordinary[1]} + {'bit': <4} {self.executed_disable[0]: <10} {'execute disable': <30} {self.executed_disable[1]} +""" + + +class TranslateVM(gdb.Command): + """Prints the entire paging structure used to translate a given virtual address. + +Having an address space of the currently executed process translates the virtual address +and prints detailed information of all paging structure levels used for the transaltion. +Currently supported arch: x86""" + + def __init__(self): + super(TranslateVM, self).__init__('translate-vm', gdb.COMMAND_USER) + + def invoke(self, arg, from_tty): + if utils.is_target_arch("x86"): + vm_address = gdb.parse_and_eval(f'{arg}') + cr3_data = gdb.parse_and_eval('$cr3') + cr4 = gdb.parse_and_eval('$cr4') + page_levels = 5 if cr4 & (1 << 12) else 4 + page_entry = Cr3(cr3_data, page_levels) + while page_entry: + gdb.write(page_entry.mk_string()) + page_entry = page_entry.next_entry(vm_address) + else: + gdb.GdbError("Virtual address translation is not" + "supported for this arch") + + +TranslateVM() diff --git a/scripts/gdb/vmlinux-gdb.py b/scripts/gdb/vmlinux-gdb.py index 3e8d3669f0ce..3a5b44cd6bfe 100644 --- a/scripts/gdb/vmlinux-gdb.py +++ b/scripts/gdb/vmlinux-gdb.py @@ -37,3 +37,4 @@ else: import linux.clk import linux.genpd import linux.device + import linux.mm diff --git a/scripts/spelling.txt b/scripts/spelling.txt index ded8bcfc0247..f8bd6178d17b 100644 --- a/scripts/spelling.txt +++ b/scripts/spelling.txt @@ -65,6 +65,7 @@ acumulative||accumulative acumulator||accumulator acutally||actually adapater||adapter +adderted||asserted addional||additional additionaly||additionally additonal||additional @@ -122,6 +123,7 @@ alue||value ambigious||ambiguous ambigous||ambiguous amoung||among +amount of times||number of times amout||amount amplifer||amplifier amplifyer||amplifier @@ -287,6 +289,7 @@ capapbilities||capabilities caputure||capture carefuly||carefully cariage||carriage +casued||caused catagory||category cehck||check challange||challenge @@ -370,6 +373,7 @@ conbination||combination conditionaly||conditionally conditon||condition condtion||condition +condtional||conditional conected||connected conector||connector configration||configuration @@ -423,6 +427,7 @@ cound||could couter||counter coutner||counter cryptocraphic||cryptographic +cummulative||cumulative cunter||counter curently||currently cylic||cyclic @@ -625,8 +630,10 @@ exeuction||execution existance||existence existant||existent exixt||exist +exsits||exists exlcude||exclude exlcusive||exclusive +exlusive||exclusive exmaple||example expecially||especially experies||expires @@ -664,11 +671,13 @@ feauture||feature feautures||features fetaure||feature fetaures||features +fetcing||fetching fileystem||filesystem fimrware||firmware fimware||firmware firmare||firmware firmaware||firmware +firtly||firstly firware||firmware firwmare||firmware finanize||finalize @@ -838,6 +847,7 @@ integrety||integrity integrey||integrity intendet||intended intented||intended +interal||internal interanl||internal interchangable||interchangeable interferring||interfering @@ -1023,6 +1033,7 @@ negotation||negotiation nerver||never nescessary||necessary nessessary||necessary +none existent||non-existent noticable||noticeable notication||notification notications||notifications @@ -1044,6 +1055,7 @@ occured||occurred occurence||occurrence occure||occurred occuring||occurring +ocurrence||occurrence offser||offset offet||offset offlaod||offload @@ -1055,6 +1067,7 @@ omitt||omit ommiting||omitting ommitted||omitted onself||oneself +onthe||on the ony||only openning||opening operatione||operation @@ -1121,6 +1134,7 @@ perfomring||performing periperal||peripheral peripherial||peripheral permissons||permissions +permited||permitted peroid||period persistance||persistence persistant||persistent @@ -1334,6 +1348,7 @@ sacrifying||sacrificing safly||safely safty||safety satify||satisfy +satisifed||satisfied savable||saveable scaleing||scaling scaned||scanned @@ -1558,6 +1573,7 @@ tunning||tuning ture||true tyep||type udpate||update +updtes||updates uesd||used unknwon||unknown uknown||unknown @@ -1614,6 +1630,7 @@ unuseful||useless unvalid||invalid upate||update upsupported||unsupported +upto||up to useable||usable usefule||useful usefull||useful diff --git a/scripts/tags.sh b/scripts/tags.sh index e137cf15aae9..84775f08260f 100755 --- a/scripts/tags.sh +++ b/scripts/tags.sh @@ -264,10 +264,12 @@ exuberant() --$CTAGS_EXTRA=+fq --c-kinds=+px --fields=+iaS --langmap=c:+.h \ "${regex[@]}" - setup_regex exuberant kconfig - all_kconfigs | xargs $1 -a \ - --langdef=kconfig --language-force=kconfig "${regex[@]}" - + KCONFIG_ARGS=() + if ! $1 --list-languages | grep -iq kconfig; then + setup_regex exuberant kconfig + KCONFIG_ARGS=(--langdef=kconfig --language-force=kconfig "${regex[@]}") + fi + all_kconfigs | xargs $1 -a "${KCONFIG_ARGS[@]}" } emacs() |