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-rw-r--r--scripts/Makefile.build5
-rw-r--r--scripts/Makefile.kasan1
-rw-r--r--scripts/Makefile.modfinal2
-rwxr-xr-xscripts/atomic/check-atomics.sh1
-rwxr-xr-xscripts/atomic/gen-atomic-instrumented.sh51
-rwxr-xr-xscripts/atomic/gen-atomics.sh1
-rwxr-xr-xscripts/checkpatch.pl16
-rwxr-xr-xscripts/checksyscalls.sh4
-rwxr-xr-xscripts/coccicheck2
-rw-r--r--scripts/coccinelle/api/kobj_to_dev.cocci45
-rw-r--r--scripts/coccinelle/free/kfree.cocci12
-rw-r--r--scripts/coccinelle/misc/flexible_array.cocci23
-rw-r--r--scripts/coccinelle/misc/irqf_oneshot.cocci4
-rw-r--r--scripts/coccinelle/misc/minmax.cocci222
-rw-r--r--scripts/coccinelle/misc/swap.cocci122
-rw-r--r--scripts/coccinelle/misc/uninitialized_var.cocci15
-rwxr-xr-xscripts/decode_stacktrace.sh89
-rwxr-xr-xscripts/documentation-file-ref-check2
-rwxr-xr-xscripts/kconfig/streamline_config.pl80
-rwxr-xr-xscripts/kernel-doc71
-rwxr-xr-xscripts/link-vmlinux.sh6
-rwxr-xr-xscripts/min-tool-version.sh7
-rw-r--r--scripts/recordmcount.h15
-rw-r--r--scripts/spelling.txt16
-rwxr-xr-xscripts/sphinx-pre-install262
-rwxr-xr-xscripts/tools-support-relr.sh3
26 files changed, 774 insertions, 303 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 7adc3a2c3c31..10b2f2380d6f 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -266,7 +266,8 @@ define rule_as_o_S
endef
# Built-in and composite module parts
-$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
+.SECONDEXPANSION:
+$(obj)/%.o: $(src)/%.c $(recordmcount_source) $$(objtool_dep) FORCE
$(call if_changed_rule,cc_o_c)
$(call cmd,force_checksrc)
@@ -347,7 +348,7 @@ cmd_modversions_S = \
fi
endif
-$(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
+$(obj)/%.o: $(src)/%.S $$(objtool_dep) FORCE
$(call if_changed_rule,as_o_S)
targets += $(filter-out $(subdir-builtin), $(real-obj-y))
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 3d791908ed36..801c415bac59 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -50,6 +50,7 @@ endif
CFLAGS_KASAN := -fsanitize=kernel-hwaddress \
$(call cc-param,hwasan-instrument-stack=$(stack_enable)) \
$(call cc-param,hwasan-use-short-granules=0) \
+ $(call cc-param,hwasan-inline-all-checks=0) \
$(instrumentation_flags)
endif # CONFIG_KASAN_SW_TAGS
diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal
index bdee3babc5cf..5e9b8057fb24 100644
--- a/scripts/Makefile.modfinal
+++ b/scripts/Makefile.modfinal
@@ -57,7 +57,7 @@ quiet_cmd_ld_ko_o = LD [M] $@
quiet_cmd_btf_ko = BTF [M] $@
cmd_btf_ko = \
if [ -f vmlinux ]; then \
- LLVM_OBJCOPY=$(OBJCOPY) $(PAHOLE) -J --btf_base vmlinux $@; \
+ LLVM_OBJCOPY="$(OBJCOPY)" $(PAHOLE) -J --btf_base vmlinux $@; \
else \
printf "Skipping BTF generation for %s due to unavailability of vmlinux\n" $@ 1>&2; \
fi;
diff --git a/scripts/atomic/check-atomics.sh b/scripts/atomic/check-atomics.sh
index 82748d42ecc5..9c7fbd4bcbce 100755
--- a/scripts/atomic/check-atomics.sh
+++ b/scripts/atomic/check-atomics.sh
@@ -17,7 +17,6 @@ cat <<EOF |
asm-generic/atomic-instrumented.h
asm-generic/atomic-long.h
linux/atomic-arch-fallback.h
-linux/atomic-fallback.h
EOF
while read header; do
OLDSUM="$(tail -n 1 ${LINUXDIR}/include/${header})"
diff --git a/scripts/atomic/gen-atomic-instrumented.sh b/scripts/atomic/gen-atomic-instrumented.sh
index 5766ffcec7c5..b0c45aee19d7 100755
--- a/scripts/atomic/gen-atomic-instrumented.sh
+++ b/scripts/atomic/gen-atomic-instrumented.sh
@@ -41,34 +41,6 @@ gen_params_checks()
done
}
-# gen_guard(meta, atomic, pfx, name, sfx, order)
-gen_guard()
-{
- local meta="$1"; shift
- local atomic="$1"; shift
- local pfx="$1"; shift
- local name="$1"; shift
- local sfx="$1"; shift
- local order="$1"; shift
-
- local atomicname="arch_${atomic}_${pfx}${name}${sfx}${order}"
-
- local template="$(find_fallback_template "${pfx}" "${name}" "${sfx}" "${order}")"
-
- # We definitely need a preprocessor symbol for this atomic if it is an
- # ordering variant, or if there's a generic fallback.
- if [ ! -z "${order}" ] || [ ! -z "${template}" ]; then
- printf "defined(${atomicname})"
- return
- fi
-
- # If this is a base variant, but a relaxed variant *may* exist, then we
- # only have a preprocessor symbol if the relaxed variant isn't defined
- if meta_has_relaxed "${meta}"; then
- printf "!defined(${atomicname}_relaxed) || defined(${atomicname})"
- fi
-}
-
#gen_proto_order_variant(meta, pfx, name, sfx, order, atomic, int, arg...)
gen_proto_order_variant()
{
@@ -82,16 +54,12 @@ gen_proto_order_variant()
local atomicname="${atomic}_${pfx}${name}${sfx}${order}"
- local guard="$(gen_guard "${meta}" "${atomic}" "${pfx}" "${name}" "${sfx}" "${order}")"
-
local ret="$(gen_ret_type "${meta}" "${int}")"
local params="$(gen_params "${int}" "${atomic}" "$@")"
local checks="$(gen_params_checks "${meta}" "$@")"
local args="$(gen_args "$@")"
local retstmt="$(gen_ret_stmt "${meta}")"
- [ ! -z "${guard}" ] && printf "#if ${guard}\n"
-
cat <<EOF
static __always_inline ${ret}
${atomicname}(${params})
@@ -99,11 +67,8 @@ ${atomicname}(${params})
${checks}
${retstmt}arch_${atomicname}(${args});
}
-#define ${atomicname} ${atomicname}
EOF
- [ ! -z "${guard}" ] && printf "#endif\n"
-
printf "\n"
}
@@ -139,19 +104,6 @@ EOF
fi
}
-gen_optional_xchg()
-{
- local name="$1"; shift
- local sfx="$1"; shift
- local guard="defined(arch_${name}${sfx})"
-
- [ -z "${sfx}" ] && guard="!defined(arch_${name}_relaxed) || defined(arch_${name})"
-
- printf "#if ${guard}\n"
- gen_xchg "${name}${sfx}" ""
- printf "#endif\n\n"
-}
-
cat << EOF
// SPDX-License-Identifier: GPL-2.0
@@ -188,7 +140,8 @@ done
for xchg in "xchg" "cmpxchg" "cmpxchg64" "try_cmpxchg"; do
for order in "" "_acquire" "_release" "_relaxed"; do
- gen_optional_xchg "${xchg}" "${order}"
+ gen_xchg "${xchg}${order}" ""
+ printf "\n"
done
done
diff --git a/scripts/atomic/gen-atomics.sh b/scripts/atomic/gen-atomics.sh
index d29e159ef489..f776a574224d 100755
--- a/scripts/atomic/gen-atomics.sh
+++ b/scripts/atomic/gen-atomics.sh
@@ -11,7 +11,6 @@ cat <<EOF |
gen-atomic-instrumented.sh asm-generic/atomic-instrumented.h
gen-atomic-long.sh asm-generic/atomic-long.h
gen-atomic-fallback.sh linux/atomic-arch-fallback.h arch_
-gen-atomic-fallback.sh linux/atomic-fallback.h
EOF
while read script header args; do
/bin/sh ${ATOMICDIR}/${script} ${ATOMICTBL} ${args} > ${LINUXDIR}/include/${header}
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 23697a6b1eaa..461d4221e4a4 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1084,10 +1084,10 @@ sub is_maintained_obsolete {
sub is_SPDX_License_valid {
my ($license) = @_;
- return 1 if (!$tree || which("python") eq "" || !(-e "$root/scripts/spdxcheck.py") || !(-e "$gitroot"));
+ return 1 if (!$tree || which("python3") eq "" || !(-x "$root/scripts/spdxcheck.py") || !(-e "$gitroot"));
my $root_path = abs_path($root);
- my $status = `cd "$root_path"; echo "$license" | python scripts/spdxcheck.py -`;
+ my $status = `cd "$root_path"; echo "$license" | scripts/spdxcheck.py -`;
return 0 if ($status ne "");
return 1;
}
@@ -5361,9 +5361,13 @@ sub process {
}
}
-#goto labels aren't indented, allow a single space however
- if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
- !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
+# check that goto labels aren't indented (allow a single space indentation)
+# and ignore bitfield definitions like foo:1
+# Strictly, labels can have whitespace after the identifier and before the :
+# but this is not allowed here as many ?: uses would appear to be labels
+ if ($sline =~ /^.\s+[A-Za-z_][A-Za-z\d_]*:(?!\s*\d+)/ &&
+ $sline !~ /^. [A-Za-z\d_][A-Za-z\d_]*:/ &&
+ $sline !~ /^.\s+default:/) {
if (WARN("INDENTED_LABEL",
"labels should not be indented\n" . $herecurr) &&
$fix) {
@@ -5458,7 +5462,7 @@ sub process {
# Return of what appears to be an errno should normally be negative
if ($sline =~ /\breturn(?:\s*\(+\s*|\s+)(E[A-Z]+)(?:\s*\)+\s*|\s*)[;:,]/) {
my $name = $1;
- if ($name ne 'EOF' && $name ne 'ERROR') {
+ if ($name ne 'EOF' && $name ne 'ERROR' && $name !~ /^EPOLL/) {
WARN("USE_NEGATIVE_ERRNO",
"return of an errno should typically be negative (ie: return -$1)\n" . $herecurr);
}
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index a18b47695f55..b7609958ee36 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -40,6 +40,10 @@ cat << EOF
#define __IGNORE_setrlimit /* setrlimit */
#endif
+#ifndef __ARCH_WANT_MEMFD_SECRET
+#define __IGNORE_memfd_secret
+#endif
+
/* Missing flags argument */
#define __IGNORE_renameat /* renameat2 */
diff --git a/scripts/coccicheck b/scripts/coccicheck
index 65fee63aeadb..caba0bff6da7 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -87,7 +87,7 @@ else
fi
# Use only one thread per core by default if hyperthreading is enabled
- THREADS_PER_CORE=$(lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]")
+ THREADS_PER_CORE=$(LANG=C lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]")
if [ -z "$J" ]; then
NPROC=$(getconf _NPROCESSORS_ONLN)
if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 4 ] ; then
diff --git a/scripts/coccinelle/api/kobj_to_dev.cocci b/scripts/coccinelle/api/kobj_to_dev.cocci
deleted file mode 100644
index cd5d31c6fe76..000000000000
--- a/scripts/coccinelle/api/kobj_to_dev.cocci
+++ /dev/null
@@ -1,45 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-///
-/// Use kobj_to_dev() instead of container_of()
-///
-// Confidence: High
-// Copyright: (C) 2020 Denis Efremov ISPRAS
-// Options: --no-includes --include-headers
-//
-// Keywords: kobj_to_dev, container_of
-//
-
-virtual context
-virtual report
-virtual org
-virtual patch
-
-
-@r depends on !patch@
-expression ptr;
-symbol kobj;
-position p;
-@@
-
-* container_of(ptr, struct device, kobj)@p
-
-
-@depends on patch@
-expression ptr;
-@@
-
-- container_of(ptr, struct device, kobj)
-+ kobj_to_dev(ptr)
-
-
-@script:python depends on report@
-p << r.p;
-@@
-
-coccilib.report.print_report(p[0], "WARNING opportunity for kobj_to_dev()")
-
-@script:python depends on org@
-p << r.p;
-@@
-
-coccilib.org.print_todo(p[0], "WARNING opportunity for kobj_to_dev()")
diff --git a/scripts/coccinelle/free/kfree.cocci b/scripts/coccinelle/free/kfree.cocci
index 168568386034..9b6e2037c2a9 100644
--- a/scripts/coccinelle/free/kfree.cocci
+++ b/scripts/coccinelle/free/kfree.cocci
@@ -22,9 +22,9 @@ position p1;
@@
(
-* kfree@p1(E)
+ kfree@p1(E)
|
-* kfree_sensitive@p1(E)
+ kfree_sensitive@p1(E)
)
@print expression@
@@ -66,9 +66,9 @@ position ok;
while (1) { ...
(
-* kfree@ok(E)
+ kfree@ok(E)
|
-* kfree_sensitive@ok(E)
+ kfree_sensitive@ok(E)
)
... when != break;
when != goto l;
@@ -84,9 +84,9 @@ position free.p1!=loop.ok,p2!={print.p,sz.p};
@@
(
-* kfree@p1(E,...)
+ kfree@p1(E,...)
|
-* kfree_sensitive@p1(E,...)
+ kfree_sensitive@p1(E,...)
)
...
(
diff --git a/scripts/coccinelle/misc/flexible_array.cocci b/scripts/coccinelle/misc/flexible_array.cocci
index 947fbaff82a9..f427fd68ed2d 100644
--- a/scripts/coccinelle/misc/flexible_array.cocci
+++ b/scripts/coccinelle/misc/flexible_array.cocci
@@ -51,21 +51,40 @@ position p : script:python() { relevant(p) };
};
)
+@only_field depends on patch@
+identifier name, array;
+type T;
+position q;
+@@
+
+(
+ struct name {@q
+ T array[0];
+ };
+|
+ struct {@q
+ T array[0];
+ };
+)
+
@depends on patch@
identifier name, array;
type T;
position p : script:python() { relevant(p) };
+// position @q with rule "only_field" simplifies
+// handling of bitfields, arrays, etc.
+position q != only_field.q;
@@
(
- struct name {
+ struct name {@q
...
T array@p[
- 0
];
};
|
- struct {
+ struct {@q
...
T array@p[
- 0
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci
index 7b48287b3dc1..9b6f404d07f2 100644
--- a/scripts/coccinelle/misc/irqf_oneshot.cocci
+++ b/scripts/coccinelle/misc/irqf_oneshot.cocci
@@ -103,11 +103,11 @@ devm_request_threaded_irq@p(dev, irq, NULL, ...)
@script:python depends on org@
p << match.p;
@@
-msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
+msg = "WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
coccilib.org.print_todo(p[0],msg)
@script:python depends on report@
p << match.p;
@@
-msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
+msg = "WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
coccilib.report.print_report(p[0],msg)
diff --git a/scripts/coccinelle/misc/minmax.cocci b/scripts/coccinelle/misc/minmax.cocci
new file mode 100644
index 000000000000..fcf908b34f27
--- /dev/null
+++ b/scripts/coccinelle/misc/minmax.cocci
@@ -0,0 +1,222 @@
+// SPDX-License-Identifier: GPL-2.0-only
+///
+/// Check for opencoded min(), max() implementations.
+/// Generated patches sometimes require adding a cast to fix compile warning.
+/// Warnings/patches scope intentionally limited to a function body.
+///
+// Confidence: Medium
+// Copyright: (C) 2021 Denis Efremov ISPRAS
+// Options: --no-includes --include-headers
+//
+// Keywords: min, max
+//
+
+
+virtual report
+virtual org
+virtual context
+virtual patch
+
+@rmax depends on !patch@
+identifier func;
+expression x, y;
+binary operator cmp = {>, >=};
+position p;
+@@
+
+func(...)
+{
+ <...
+* ((x) cmp@p (y) ? (x) : (y))
+ ...>
+}
+
+@rmaxif depends on !patch@
+identifier func;
+expression x, y;
+expression max_val;
+binary operator cmp = {>, >=};
+position p;
+@@
+
+func(...)
+{
+ <...
+* if ((x) cmp@p (y)) {
+* max_val = (x);
+* } else {
+* max_val = (y);
+* }
+ ...>
+}
+
+@rmin depends on !patch@
+identifier func;
+expression x, y;
+binary operator cmp = {<, <=};
+position p;
+@@
+
+func(...)
+{
+ <...
+* ((x) cmp@p (y) ? (x) : (y))
+ ...>
+}
+
+@rminif depends on !patch@
+identifier func;
+expression x, y;
+expression min_val;
+binary operator cmp = {<, <=};
+position p;
+@@
+
+func(...)
+{
+ <...
+* if ((x) cmp@p (y)) {
+* min_val = (x);
+* } else {
+* min_val = (y);
+* }
+ ...>
+}
+
+@pmax depends on patch@
+identifier func;
+expression x, y;
+binary operator cmp = {>=, >};
+@@
+
+func(...)
+{
+ <...
+- ((x) cmp (y) ? (x) : (y))
++ max(x, y)
+ ...>
+}
+
+@pmaxif depends on patch@
+identifier func;
+expression x, y;
+expression max_val;
+binary operator cmp = {>=, >};
+@@
+
+func(...)
+{
+ <...
+- if ((x) cmp (y)) {
+- max_val = x;
+- } else {
+- max_val = y;
+- }
++ max_val = max(x, y);
+ ...>
+}
+
+// Don't generate patches for errcode returns.
+@errcode depends on patch@
+position p;
+identifier func;
+expression x;
+binary operator cmp = {<, <=};
+@@
+
+func(...)
+{
+ <...
+ return ((x) cmp@p 0 ? (x) : 0);
+ ...>
+}
+
+@pmin depends on patch@
+identifier func;
+expression x, y;
+binary operator cmp = {<=, <};
+position p != errcode.p;
+@@
+
+func(...)
+{
+ <...
+- ((x) cmp@p (y) ? (x) : (y))
++ min(x, y)
+ ...>
+}
+
+@pminif depends on patch@
+identifier func;
+expression x, y;
+expression min_val;
+binary operator cmp = {<=, <};
+@@
+
+func(...)
+{
+ <...
+- if ((x) cmp (y)) {
+- min_val = x;
+- } else {
+- min_val = y;
+- }
++ min_val = min(x, y);
+ ...>
+}
+
+@script:python depends on report@
+p << rmax.p;
+@@
+
+for p0 in p:
+ coccilib.report.print_report(p0, "WARNING opportunity for max()")
+
+@script:python depends on org@
+p << rmax.p;
+@@
+
+for p0 in p:
+ coccilib.org.print_todo(p0, "WARNING opportunity for max()")
+
+@script:python depends on report@
+p << rmaxif.p;
+@@
+
+for p0 in p:
+ coccilib.report.print_report(p0, "WARNING opportunity for max()")
+
+@script:python depends on org@
+p << rmaxif.p;
+@@
+
+for p0 in p:
+ coccilib.org.print_todo(p0, "WARNING opportunity for max()")
+
+@script:python depends on report@
+p << rmin.p;
+@@
+
+for p0 in p:
+ coccilib.report.print_report(p0, "WARNING opportunity for min()")
+
+@script:python depends on org@
+p << rmin.p;
+@@
+
+for p0 in p:
+ coccilib.org.print_todo(p0, "WARNING opportunity for min()")
+
+@script:python depends on report@
+p << rminif.p;
+@@
+
+for p0 in p:
+ coccilib.report.print_report(p0, "WARNING opportunity for min()")
+
+@script:python depends on org@
+p << rminif.p;
+@@
+
+for p0 in p:
+ coccilib.org.print_todo(p0, "WARNING opportunity for min()")
diff --git a/scripts/coccinelle/misc/swap.cocci b/scripts/coccinelle/misc/swap.cocci
new file mode 100644
index 000000000000..c5e71b7ef7f5
--- /dev/null
+++ b/scripts/coccinelle/misc/swap.cocci
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0-only
+///
+/// Check for opencoded swap() implementation.
+///
+// Confidence: High
+// Copyright: (C) 2021 Denis Efremov ISPRAS
+// Options: --no-includes --include-headers
+//
+// Keywords: swap
+//
+
+virtual patch
+virtual org
+virtual report
+virtual context
+
+@rvar depends on !patch@
+identifier tmp;
+expression a, b;
+type T;
+position p;
+@@
+
+(
+* T tmp;
+|
+* T tmp = 0;
+|
+* T *tmp = NULL;
+)
+... when != tmp
+* tmp = a;
+* a = b;@p
+* b = tmp;
+... when != tmp
+
+@r depends on !patch@
+identifier tmp;
+expression a, b;
+position p != rvar.p;
+@@
+
+* tmp = a;
+* a = b;@p
+* b = tmp;
+
+@rpvar depends on patch@
+identifier tmp;
+expression a, b;
+type T;
+@@
+
+(
+- T tmp;
+|
+- T tmp = 0;
+|
+- T *tmp = NULL;
+)
+... when != tmp
+- tmp = a;
+- a = b;
+- b = tmp
++ swap(a, b)
+ ;
+... when != tmp
+
+@rp depends on patch@
+identifier tmp;
+expression a, b;
+@@
+
+- tmp = a;
+- a = b;
+- b = tmp
++ swap(a, b)
+ ;
+
+@depends on patch && (rpvar || rp)@
+@@
+
+(
+ for (...;...;...)
+- {
+ swap(...);
+- }
+|
+ while (...)
+- {
+ swap(...);
+- }
+|
+ if (...)
+- {
+ swap(...);
+- }
+)
+
+
+@script:python depends on report@
+p << r.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for swap()")
+
+@script:python depends on org@
+p << r.p;
+@@
+
+coccilib.org.print_todo(p[0], "WARNING opportunity for swap()")
+
+@script:python depends on report@
+p << rvar.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for swap()")
+
+@script:python depends on org@
+p << rvar.p;
+@@
+
+coccilib.org.print_todo(p[0], "WARNING opportunity for swap()")
diff --git a/scripts/coccinelle/misc/uninitialized_var.cocci b/scripts/coccinelle/misc/uninitialized_var.cocci
index 8fa845cefe11..69bbaae47e73 100644
--- a/scripts/coccinelle/misc/uninitialized_var.cocci
+++ b/scripts/coccinelle/misc/uninitialized_var.cocci
@@ -1,7 +1,9 @@
// SPDX-License-Identifier: GPL-2.0-only
///
/// Please, don't reintroduce uninitialized_var().
-/// From Documentation/process/deprecated.rst:
+///
+/// From Documentation/process/deprecated.rst,
+/// commit 4b19bec97c88 ("docs: deprecated.rst: Add uninitialized_var()"):
/// For any compiler warnings about uninitialized variables, just add
/// an initializer. Using warning-silencing tricks is dangerous as it
/// papers over real bugs (or can in the future), and suppresses unrelated
@@ -11,6 +13,11 @@
/// obviously redundant, the compiler's dead-store elimination pass will make
/// sure there are no needless variable writes.
///
+/// Later, commit 3942ea7a10c9 ("deprecated.rst: Remove now removed
+/// uninitialized_var") removed this section because all initializations of
+/// this kind were cleaned-up from the kernel. This cocci rule checks that
+/// the macro is not explicitly or implicitly reintroduced.
+///
// Confidence: High
// Copyright: (C) 2020 Denis Efremov ISPRAS
// Options: --no-includes --include-headers
@@ -40,12 +47,10 @@ position p;
p << r.p;
@@
-coccilib.report.print_report(p[0],
- "WARNING this kind of initialization is deprecated (https://www.kernel.org/doc/html/latest/process/deprecated.html#uninitialized-var)")
+coccilib.report.print_report(p[0], "WARNING this kind of initialization is deprecated")
@script:python depends on org@
p << r.p;
@@
-coccilib.org.print_todo(p[0],
- "WARNING this kind of initialization is deprecated (https://www.kernel.org/doc/html/latest/process/deprecated.html#uninitialized-var)")
+coccilib.org.print_todo(p[0], "WARNING this kind of initialization is deprecated")
diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 90398347e366..5fbad61fe490 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -3,11 +3,10 @@
# (c) 2014, Sasha Levin <sasha.levin@oracle.com>
#set -x
-if [[ $# < 1 ]]; then
+usage() {
echo "Usage:"
- echo " $0 -r <release> | <vmlinux> [base path] [modules path]"
- exit 1
-fi
+ echo " $0 -r <release> | <vmlinux> [<base path>|auto] [<modules path>]"
+}
if [[ $1 == "-r" ]] ; then
vmlinux=""
@@ -24,6 +23,7 @@ if [[ $1 == "-r" ]] ; then
if [[ $vmlinux == "" ]] ; then
echo "ERROR! vmlinux image for release $release is not found" >&2
+ usage
exit 2
fi
else
@@ -31,12 +31,35 @@ else
basepath=${2-auto}
modpath=$3
release=""
+ debuginfod=
+
+ # Can we use debuginfod-find?
+ if type debuginfod-find >/dev/null 2>&1 ; then
+ debuginfod=${1-only}
+ fi
+
+ if [[ $vmlinux == "" && -z $debuginfod ]] ; then
+ echo "ERROR! vmlinux image must be specified" >&2
+ usage
+ exit 1
+ fi
fi
declare -A cache
declare -A modcache
find_module() {
+ if [[ -n $debuginfod ]] ; then
+ if [[ -n $modbuildid ]] ; then
+ debuginfod-find debuginfo $modbuildid && return
+ fi
+
+ # Only using debuginfod so don't try to find vmlinux module path
+ if [[ $debuginfod == "only" ]] ; then
+ return
+ fi
+ fi
+
if [[ "$modpath" != "" ]] ; then
for fn in $(find "$modpath" -name "${module//_/[-_]}.ko*") ; do
if readelf -WS "$fn" | grep -qwF .debug_line ; then
@@ -51,7 +74,7 @@ find_module() {
find_module && return
if [[ $release == "" ]] ; then
- release=$(gdb -ex 'print init_uts_ns.name.release' -ex 'quit' -quiet -batch "$vmlinux" | sed -n 's/\$1 = "\(.*\)".*/\1/p')
+ release=$(gdb -ex 'print init_uts_ns.name.release' -ex 'quit' -quiet -batch "$vmlinux" 2>/dev/null | sed -n 's/\$1 = "\(.*\)".*/\1/p')
fi
for dn in {/usr/lib/debug,}/lib/modules/$release ; do
@@ -105,7 +128,7 @@ parse_symbol() {
if [[ "${cache[$module,$name]+isset}" == "isset" ]]; then
local base_addr=${cache[$module,$name]}
else
- local base_addr=$(nm "$objfile" | awk '$3 == "'$name'" && ($2 == "t" || $2 == "T") {print $1; exit}')
+ local base_addr=$(nm "$objfile" 2>/dev/null | awk '$3 == "'$name'" && ($2 == "t" || $2 == "T") {print $1; exit}')
if [[ $base_addr == "" ]] ; then
# address not found
return
@@ -129,7 +152,7 @@ parse_symbol() {
if [[ "${cache[$module,$address]+isset}" == "isset" ]]; then
local code=${cache[$module,$address]}
else
- local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address")
+ local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address" 2>/dev/null)
cache[$module,$address]=$code
fi
@@ -150,6 +173,27 @@ parse_symbol() {
symbol="$segment$name ($code)"
}
+debuginfod_get_vmlinux() {
+ local vmlinux_buildid=${1##* }
+
+ if [[ $vmlinux != "" ]]; then
+ return
+ fi
+
+ if [[ $vmlinux_buildid =~ ^[0-9a-f]+ ]]; then
+ vmlinux=$(debuginfod-find debuginfo $vmlinux_buildid)
+ if [[ $? -ne 0 ]] ; then
+ echo "ERROR! vmlinux image not found via debuginfod-find" >&2
+ usage
+ exit 2
+ fi
+ return
+ fi
+ echo "ERROR! Build ID for vmlinux not found. Try passing -r or specifying vmlinux" >&2
+ usage
+ exit 2
+}
+
decode_code() {
local scripts=`dirname "${BASH_SOURCE[0]}"`
@@ -157,6 +201,14 @@ decode_code() {
}
handle_line() {
+ if [[ $basepath == "auto" && $vmlinux != "" ]] ; then
+ module=""
+ symbol="kernel_init+0x0/0x0"
+ parse_symbol
+ basepath=${symbol#kernel_init (}
+ basepath=${basepath%/init/main.c:*)}
+ fi
+
local words
# Tokenize
@@ -182,16 +234,28 @@ handle_line() {
fi
done
+ if [[ ${words[$last]} =~ ^[0-9a-f]+\] ]]; then
+ words[$last-1]="${words[$last-1]} ${words[$last]}"
+ unset words[$last]
+ last=$(( $last - 1 ))
+ fi
+
if [[ ${words[$last]} =~ \[([^]]+)\] ]]; then
module=${words[$last]}
module=${module#\[}
module=${module%\]}
+ modbuildid=${module#* }
+ module=${module% *}
+ if [[ $modbuildid == $module ]]; then
+ modbuildid=
+ fi
symbol=${words[$last-1]}
unset words[$last-1]
else
# The symbol is the last element, process it
symbol=${words[$last]}
module=
+ modbuildid=
fi
unset words[$last]
@@ -201,14 +265,6 @@ handle_line() {
echo "${words[@]}" "$symbol $module"
}
-if [[ $basepath == "auto" ]] ; then
- module=""
- symbol="kernel_init+0x0/0x0"
- parse_symbol
- basepath=${symbol#kernel_init (}
- basepath=${basepath%/init/main.c:*)}
-fi
-
while read line; do
# Let's see if we have an address in the line
if [[ $line =~ \[\<([^]]+)\>\] ]] ||
@@ -218,6 +274,9 @@ while read line; do
# Is it a code line?
elif [[ $line == *Code:* ]]; then
decode_code "$line"
+ # Is it a version line?
+ elif [[ -n $debuginfod && $line =~ PID:\ [0-9]+\ Comm: ]]; then
+ debuginfod_get_vmlinux "$line"
else
# Nothing special in this line, show it as is
echo "$line"
diff --git a/scripts/documentation-file-ref-check b/scripts/documentation-file-ref-check
index c71832b2312b..7187ea5e5149 100755
--- a/scripts/documentation-file-ref-check
+++ b/scripts/documentation-file-ref-check
@@ -24,7 +24,7 @@ my $help = 0;
my $fix = 0;
my $warn = 0;
-if (! -d ".git") {
+if (! -e ".git") {
printf "Warning: can't check if file exists, as this is not a git tree\n";
exit 0;
}
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 911c72a2dbc4..1a5fea0519eb 100755
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -601,12 +601,12 @@ if (defined($ENV{'LMC_KEEP'})) {
sub in_preserved_kconfigs {
my $kconfig = $config2kfile{$_[0]};
if (!defined($kconfig)) {
- return 0;
+ return 0;
}
foreach my $excl (@preserved_kconfigs) {
- if($kconfig =~ /^$excl/) {
- return 1;
- }
+ if($kconfig =~ /^$excl/) {
+ return 1;
+ }
}
return 0;
}
@@ -629,52 +629,52 @@ foreach my $line (@config_file) {
}
if (/CONFIG_MODULE_SIG_KEY="(.+)"/) {
- my $orig_cert = $1;
- my $default_cert = "certs/signing_key.pem";
-
- # Check that the logic in this script still matches the one in Kconfig
- if (!defined($depends{"MODULE_SIG_KEY"}) ||
- $depends{"MODULE_SIG_KEY"} !~ /"\Q$default_cert\E"/) {
- print STDERR "WARNING: MODULE_SIG_KEY assertion failure, ",
- "update needed to ", __FILE__, " line ", __LINE__, "\n";
- print;
- } elsif ($orig_cert ne $default_cert && ! -f $orig_cert) {
- print STDERR "Module signature verification enabled but ",
- "module signing key \"$orig_cert\" not found. Resetting ",
- "signing key to default value.\n";
- print "CONFIG_MODULE_SIG_KEY=\"$default_cert\"\n";
- } else {
- print;
- }
- next;
+ my $orig_cert = $1;
+ my $default_cert = "certs/signing_key.pem";
+
+ # Check that the logic in this script still matches the one in Kconfig
+ if (!defined($depends{"MODULE_SIG_KEY"}) ||
+ $depends{"MODULE_SIG_KEY"} !~ /"\Q$default_cert\E"/) {
+ print STDERR "WARNING: MODULE_SIG_KEY assertion failure, ",
+ "update needed to ", __FILE__, " line ", __LINE__, "\n";
+ print;
+ } elsif ($orig_cert ne $default_cert && ! -f $orig_cert) {
+ print STDERR "Module signature verification enabled but ",
+ "module signing key \"$orig_cert\" not found. Resetting ",
+ "signing key to default value.\n";
+ print "CONFIG_MODULE_SIG_KEY=\"$default_cert\"\n";
+ } else {
+ print;
+ }
+ next;
}
if (/CONFIG_SYSTEM_TRUSTED_KEYS="(.+)"/) {
- my $orig_keys = $1;
-
- if (! -f $orig_keys) {
- print STDERR "System keyring enabled but keys \"$orig_keys\" ",
- "not found. Resetting keys to default value.\n";
- print "CONFIG_SYSTEM_TRUSTED_KEYS=\"\"\n";
- } else {
- print;
- }
- next;
+ my $orig_keys = $1;
+
+ if (! -f $orig_keys) {
+ print STDERR "System keyring enabled but keys \"$orig_keys\" ",
+ "not found. Resetting keys to default value.\n";
+ print "CONFIG_SYSTEM_TRUSTED_KEYS=\"\"\n";
+ } else {
+ print;
+ }
+ next;
}
if (/^(CONFIG.*)=(m|y)/) {
- if (in_preserved_kconfigs($1)) {
- dprint "Preserve config $1";
- print;
- next;
- }
+ if (in_preserved_kconfigs($1)) {
+ dprint "Preserve config $1";
+ print;
+ next;
+ }
if (defined($configs{$1})) {
if ($localyesconfig) {
- $setconfigs{$1} = 'y';
+ $setconfigs{$1} = 'y';
print "$1=y\n";
next;
} else {
- $setconfigs{$1} = $2;
+ $setconfigs{$1} = $2;
}
} elsif ($2 eq "m") {
print "# $1 is not set\n";
@@ -702,3 +702,5 @@ foreach my $module (keys(%modules)) {
print STDERR "\n";
}
}
+
+# vim: softtabstop=4
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 4840e748fca8..7c4a6a507ac4 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -406,6 +406,8 @@ my $doc_inline_sect = '\s*\*\s*(@\s*[\w][\w\.]*\s*):(.*)';
my $doc_inline_end = '^\s*\*/\s*$';
my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
+my $function_pointer = qr{([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)};
+my $attribute = qr{__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)}i;
my %parameterdescs;
my %parameterdesc_start_lines;
@@ -694,7 +696,7 @@ sub output_function_man(%) {
$post = ");";
}
$type = $args{'parametertypes'}{$parameter};
- if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+ if ($type =~ m/$function_pointer/) {
# pointer-to-function
print ".BI \"" . $parenth . $1 . "\" " . " \") (" . $2 . ")" . $post . "\"\n";
} else {
@@ -974,7 +976,7 @@ sub output_function_rst(%) {
$count++;
$type = $args{'parametertypes'}{$parameter};
- if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
+ if ($type =~ m/$function_pointer/) {
# pointer-to-function
print $1 . $parameter . ") (" . $2 . ")";
} else {
@@ -1211,7 +1213,9 @@ sub dump_struct($$) {
my $members;
my $type = qr{struct|union};
# For capturing struct/union definition body, i.e. "{members*}qualifiers*"
- my $definition_body = qr{\{(.*)\}(?:\s*(?:__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned|__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)))*};
+ my $qualifiers = qr{$attribute|__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned};
+ my $definition_body = qr{\{(.*)\}\s*$qualifiers*};
+ my $struct_members = qr{($type)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;};
if ($x =~ /($type)\s+(\w+)\s*$definition_body/) {
$decl_type = $1;
@@ -1235,27 +1239,27 @@ sub dump_struct($$) {
# strip comments:
$members =~ s/\/\*.*?\*\///gos;
# strip attributes
- $members =~ s/\s*__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)/ /gi;
+ $members =~ s/\s*$attribute/ /gi;
$members =~ s/\s*__aligned\s*\([^;]*\)/ /gos;
$members =~ s/\s*__packed\s*/ /gos;
$members =~ s/\s*CRYPTO_MINALIGN_ATTR/ /gos;
$members =~ s/\s*____cacheline_aligned_in_smp/ /gos;
$members =~ s/\s*____cacheline_aligned/ /gos;
+ my $args = qr{([^,)]+)};
# replace DECLARE_BITMAP
$members =~ s/__ETHTOOL_DECLARE_LINK_MODE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, __ETHTOOL_LINK_MODE_MASK_NBITS)/gos;
- $members =~ s/DECLARE_BITMAP\s*\(([^,)]+),\s*([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
+ $members =~ s/DECLARE_BITMAP\s*\($args,\s*$args\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
# replace DECLARE_HASHTABLE
- $members =~ s/DECLARE_HASHTABLE\s*\(([^,)]+),\s*([^,)]+)\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
+ $members =~ s/DECLARE_HASHTABLE\s*\($args,\s*$args\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
# replace DECLARE_KFIFO
- $members =~ s/DECLARE_KFIFO\s*\(([^,)]+),\s*([^,)]+),\s*([^,)]+)\)/$2 \*$1/gos;
+ $members =~ s/DECLARE_KFIFO\s*\($args,\s*$args,\s*$args\)/$2 \*$1/gos;
# replace DECLARE_KFIFO_PTR
- $members =~ s/DECLARE_KFIFO_PTR\s*\(([^,)]+),\s*([^,)]+)\)/$2 \*$1/gos;
-
+ $members =~ s/DECLARE_KFIFO_PTR\s*\($args,\s*$args\)/$2 \*$1/gos;
my $declaration = $members;
# Split nested struct/union elements as newer ones
- while ($members =~ m/(struct|union)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;/) {
+ while ($members =~ m/$struct_members/) {
my $newmember;
my $maintype = $1;
my $ids = $4;
@@ -1315,7 +1319,7 @@ sub dump_struct($$) {
}
}
}
- $members =~ s/(struct|union)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;/$newmember/;
+ $members =~ s/$struct_members/$newmember/;
}
# Ignore other nested elements, like enums
@@ -1555,8 +1559,9 @@ sub create_parameterlist($$$$) {
my $param;
# temporarily replace commas inside function pointer definition
- while ($args =~ /(\([^\),]+),/) {
- $args =~ s/(\([^\),]+),/$1#/g;
+ my $arg_expr = qr{\([^\),]+};
+ while ($args =~ /$arg_expr,/) {
+ $args =~ s/($arg_expr),/$1#/g;
}
foreach my $arg (split($splitter, $args)) {
@@ -1707,7 +1712,7 @@ sub check_sections($$$$$) {
foreach $px (0 .. $#prms) {
$prm_clean = $prms[$px];
$prm_clean =~ s/\[.*\]//;
- $prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
+ $prm_clean =~ s/$attribute//i;
# ignore array size in a parameter string;
# however, the original param string may contain
# spaces, e.g.: addr[6 + 2]
@@ -1809,8 +1814,14 @@ sub dump_function($$) {
# - parport_register_device (function pointer parameters)
# - atomic_set (macro)
# - pci_match_device, __copy_to_user (long return type)
-
- if ($define && $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s+/) {
+ my $name = qr{[a-zA-Z0-9_~:]+};
+ my $prototype_end1 = qr{[^\(]*};
+ my $prototype_end2 = qr{[^\{]*};
+ my $prototype_end = qr{\(($prototype_end1|$prototype_end2)\)};
+ my $type1 = qr{[\w\s]+};
+ my $type2 = qr{$type1\*+};
+
+ if ($define && $prototype =~ m/^()($name)\s+/) {
# This is an object-like macro, it has no return type and no parameter
# list.
# Function-like macros are not allowed to have spaces between
@@ -1818,23 +1829,9 @@ sub dump_function($$) {
$return_type = $1;
$declaration_name = $2;
$noret = 1;
- } elsif ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
- $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
- $prototype =~ m/^(\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
- $prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
- $prototype =~ m/^(\w+\s+\w+\s*\*+\s*\w+\s*\*+\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/) {
+ } elsif ($prototype =~ m/^()($name)\s*$prototype_end/ ||
+ $prototype =~ m/^($type1)\s+($name)\s*$prototype_end/ ||
+ $prototype =~ m/^($type2+)\s*($name)\s*$prototype_end/) {
$return_type = $1;
$declaration_name = $2;
my $args = $3;
@@ -2111,12 +2108,12 @@ sub process_name($$) {
} elsif (/$doc_decl/o) {
$identifier = $1;
my $is_kernel_comment = 0;
- my $decl_start = qr{\s*\*};
+ my $decl_start = qr{$doc_com};
# test for pointer declaration type, foo * bar() - desc
my $fn_type = qr{\w+\s*\*\s*};
my $parenthesis = qr{\(\w*\)};
my $decl_end = qr{[-:].*};
- if (/^$decl_start\s*([\w\s]+?)$parenthesis?\s*$decl_end?$/) {
+ if (/^$decl_start([\w\s]+?)$parenthesis?\s*$decl_end?$/) {
$identifier = $1;
}
if ($identifier =~ m/^(struct|union|enum|typedef)\b\s*(\S*)/) {
@@ -2126,8 +2123,8 @@ sub process_name($$) {
}
# Look for foo() or static void foo() - description; or misspelt
# identifier
- elsif (/^$decl_start\s*$fn_type?(\w+)\s*$parenthesis?\s*$decl_end?$/ ||
- /^$decl_start\s*$fn_type?(\w+.*)$parenthesis?\s*$decl_end$/) {
+ elsif (/^$decl_start$fn_type?(\w+)\s*$parenthesis?\s*$decl_end?$/ ||
+ /^$decl_start$fn_type?(\w+.*)$parenthesis?\s*$decl_end$/) {
$identifier = $1;
$decl_type = 'function';
$identifier =~ s/^define\s+//;
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 3b342b0b0b38..36ef7b37fc5d 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -233,12 +233,16 @@ gen_btf()
vmlinux_link ${1}
+ if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
+ # pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
+ extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars"
+ fi
if [ "${pahole_ver}" -ge "121" ]; then
extra_paholeopt="${extra_paholeopt} --btf_gen_floats"
fi
info "BTF" ${2}
- LLVM_OBJCOPY=${OBJCOPY} ${PAHOLE} -J ${extra_paholeopt} ${1}
+ LLVM_OBJCOPY="${OBJCOPY}" ${PAHOLE} -J ${extra_paholeopt} ${1}
# Create ${2} which contains just .BTF section but no symbols. Add
# SHF_ALLOC because .BTF will be part of the vmlinux image. --strip-all
diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh
index d22cf91212b0..319f92104f56 100755
--- a/scripts/min-tool-version.sh
+++ b/scripts/min-tool-version.sh
@@ -30,7 +30,12 @@ icc)
echo 16.0.3
;;
llvm)
- echo 10.0.1
+ # https://lore.kernel.org/r/YMtib5hKVyNknZt3@osiris/
+ if [ "$SRCARCH" = s390 ]; then
+ echo 13.0.0
+ else
+ echo 10.0.1
+ fi
;;
*)
echo "$1: unknown tool" >&2
diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
index f9b19524da11..1e9baa5c4fc6 100644
--- a/scripts/recordmcount.h
+++ b/scripts/recordmcount.h
@@ -192,15 +192,20 @@ static unsigned int get_symindex(Elf_Sym const *sym, Elf32_Word const *symtab,
Elf32_Word const *symtab_shndx)
{
unsigned long offset;
+ unsigned short shndx = w2(sym->st_shndx);
int index;
- if (sym->st_shndx != SHN_XINDEX)
- return w2(sym->st_shndx);
+ if (shndx > SHN_UNDEF && shndx < SHN_LORESERVE)
+ return shndx;
- offset = (unsigned long)sym - (unsigned long)symtab;
- index = offset / sizeof(*sym);
+ if (shndx == SHN_XINDEX) {
+ offset = (unsigned long)sym - (unsigned long)symtab;
+ index = offset / sizeof(*sym);
- return w(symtab_shndx[index]);
+ return w(symtab_shndx[index]);
+ }
+
+ return 0;
}
static unsigned int get_shnum(Elf_Ehdr const *ehdr, Elf_Shdr const *shdr0)
diff --git a/scripts/spelling.txt b/scripts/spelling.txt
index 7b6a01291598..17fdc620d548 100644
--- a/scripts/spelling.txt
+++ b/scripts/spelling.txt
@@ -22,6 +22,7 @@ absolut||absolute
absoulte||absolute
acccess||access
acceess||access
+accelaration||acceleration
acceleratoin||acceleration
accelleration||acceleration
accesing||accessing
@@ -264,6 +265,7 @@ calucate||calculate
calulate||calculate
cancelation||cancellation
cancle||cancel
+canot||cannot
capabilites||capabilities
capabilties||capabilities
capabilty||capability
@@ -494,7 +496,10 @@ digial||digital
dimention||dimension
dimesions||dimensions
diconnected||disconnected
+disabed||disabled
+disble||disable
disgest||digest
+disired||desired
dispalying||displaying
diplay||display
directon||direction
@@ -710,6 +715,7 @@ havind||having
heirarchically||hierarchically
heirarchy||hierarchy
helpfull||helpful
+hearbeat||heartbeat
heterogenous||heterogeneous
hexdecimal||hexadecimal
hybernate||hibernate
@@ -989,6 +995,7 @@ notications||notifications
notifcations||notifications
notifed||notified
notity||notify
+nubmer||number
numebr||number
numner||number
obtaion||obtain
@@ -1014,8 +1021,10 @@ ommiting||omitting
ommitted||omitted
onself||oneself
ony||only
+openning||opening
operatione||operation
opertaions||operations
+opportunies||opportunities
optionnal||optional
optmizations||optimizations
orientatied||orientated
@@ -1111,6 +1120,7 @@ prefitler||prefilter
preform||perform
premption||preemption
prepaired||prepared
+prepate||prepare
preperation||preparation
preprare||prepare
pressre||pressure
@@ -1123,6 +1133,7 @@ privilaged||privileged
privilage||privilege
priviledge||privilege
priviledges||privileges
+privleges||privileges
probaly||probably
procceed||proceed
proccesors||processors
@@ -1167,6 +1178,7 @@ promixity||proximity
psudo||pseudo
psuedo||pseudo
psychadelic||psychedelic
+purgable||purgeable
pwoer||power
queing||queuing
quering||querying
@@ -1180,6 +1192,7 @@ receieve||receive
recepient||recipient
recevied||received
receving||receiving
+recievd||received
recieved||received
recieve||receive
reciever||receiver
@@ -1228,6 +1241,7 @@ reponse||response
representaion||representation
reqeust||request
reqister||register
+requed||requeued
requestied||requested
requiere||require
requirment||requirement
@@ -1332,6 +1346,7 @@ singal||signal
singed||signed
sleeped||slept
sliped||slipped
+softwade||software
softwares||software
soley||solely
souce||source
@@ -1510,6 +1525,7 @@ unintialized||uninitialized
unitialized||uninitialized
unkmown||unknown
unknonw||unknown
+unknouwn||unknown
unknow||unknown
unkown||unknown
unamed||unnamed
diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index fe92020d67e3..288e86a9d1e5 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -22,16 +22,18 @@ my $need = 0;
my $optional = 0;
my $need_symlink = 0;
my $need_sphinx = 0;
-my $need_venv = 0;
+my $need_pip = 0;
my $need_virtualenv = 0;
my $rec_sphinx_upgrade = 0;
my $install = "";
my $virtenv_dir = "";
my $python_cmd = "";
+my $activate_cmd;
my $min_version;
my $cur_version;
my $rec_version = "1.7.9"; # PDF won't build here
my $min_pdf_version = "2.4.4"; # Min version where pdf builds
+my $latest_avail_ver;
#
# Command line arguments
@@ -319,10 +321,7 @@ sub check_sphinx()
return;
}
- if ($cur_version lt $rec_version) {
- $rec_sphinx_upgrade = 1;
- return;
- }
+ return if ($cur_version lt $rec_version);
# On version check mode, just assume Sphinx has all mandatory deps
exit (0) if ($version_check);
@@ -701,6 +700,162 @@ sub deactivate_help()
printf "\tdeactivate\n";
}
+sub get_virtenv()
+{
+ my $ver;
+ my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate";
+ my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate";
+
+ @activates = sort {$b cmp $a} @activates;
+
+ foreach my $f (@activates) {
+ next if ($f lt $min_activate);
+
+ my $sphinx_cmd = $f;
+ $sphinx_cmd =~ s/activate/sphinx-build/;
+ next if (! -f $sphinx_cmd);
+
+ my $ver = get_sphinx_version($sphinx_cmd);
+ if ($need_sphinx && ($ver ge $min_version)) {
+ return ($f, $ver);
+ } elsif ($ver gt $cur_version) {
+ return ($f, $ver);
+ }
+ }
+ return ("", "");
+}
+
+sub recommend_sphinx_upgrade()
+{
+ my $venv_ver;
+
+ # Avoid running sphinx-builds from venv if $cur_version is good
+ if ($cur_version && ($cur_version ge $rec_version)) {
+ $latest_avail_ver = $cur_version;
+ return;
+ }
+
+ # Get the highest version from sphinx_*/bin/sphinx-build and the
+ # corresponding command to activate the venv/virtenv
+ $activate_cmd = get_virtenv();
+
+ # Store the highest version from Sphinx existing virtualenvs
+ if (($activate_cmd ne "") && ($venv_ver gt $cur_version)) {
+ $latest_avail_ver = $venv_ver;
+ } else {
+ $latest_avail_ver = $cur_version if ($cur_version);
+ }
+
+ # As we don't know package version of Sphinx, and there's no
+ # virtual environments, don't check if upgrades are needed
+ if (!$virtualenv) {
+ return if (!$latest_avail_ver);
+ }
+
+ # Either there are already a virtual env or a new one should be created
+ $need_pip = 1;
+
+ # Return if the reason is due to an upgrade or not
+ if ($latest_avail_ver lt $rec_version) {
+ $rec_sphinx_upgrade = 1;
+ }
+}
+
+#
+# The logic here is complex, as it have to deal with different versions:
+# - minimal supported version;
+# - minimal PDF version;
+# - recommended version.
+# It also needs to work fine with both distro's package and venv/virtualenv
+sub recommend_sphinx_version($)
+{
+ my $virtualenv_cmd = shift;
+
+ if ($latest_avail_ver lt $min_pdf_version) {
+ print "note: If you want pdf, you need at least Sphinx $min_pdf_version.\n";
+ }
+
+ # Version is OK. Nothing to do.
+ return if ($cur_version && ($cur_version ge $rec_version));
+
+ if (!$need_sphinx) {
+ # sphinx-build is present and its version is >= $min_version
+
+ #only recommend enabling a newer virtenv version if makes sense.
+ if ($latest_avail_ver gt $cur_version) {
+ printf "\nYou may also use the newer Sphinx version $latest_avail_ver with:\n";
+ printf "\tdeactivate\n" if ($ENV{'PWD'} =~ /${virtenv_prefix}/);
+ printf "\t. $activate_cmd\n";
+ deactivate_help();
+
+ return;
+ }
+ return if ($latest_avail_ver ge $rec_version);
+ }
+
+ if (!$virtualenv) {
+ # No sphinx either via package or via virtenv. As we can't
+ # Compare the versions here, just return, recommending the
+ # user to install it from the package distro.
+ return if (!$latest_avail_ver);
+
+ # User doesn't want a virtenv recommendation, but he already
+ # installed one via virtenv with a newer version.
+ # So, print commands to enable it
+ if ($latest_avail_ver gt $cur_version) {
+ printf "\nYou may also use the Sphinx virtualenv version $latest_avail_ver with:\n";
+ printf "\tdeactivate\n" if ($ENV{'PWD'} =~ /${virtenv_prefix}/);
+ printf "\t. $activate_cmd\n";
+ deactivate_help();
+
+ return;
+ }
+ print "\n";
+ } else {
+ $need++ if ($need_sphinx);
+ }
+
+ # Suggest newer versions if current ones are too old
+ if ($latest_avail_ver && $cur_version ge $min_version) {
+ # If there's a good enough version, ask the user to enable it
+ if ($latest_avail_ver ge $rec_version) {
+ printf "\nNeed to activate Sphinx (version $latest_avail_ver) on virtualenv with:\n";
+ printf "\t. $activate_cmd\n";
+ deactivate_help();
+
+ return;
+ }
+
+ # Version is above the minimal required one, but may be
+ # below the recommended one. So, print warnings/notes
+
+ if ($latest_avail_ver lt $rec_version) {
+ print "Warning: It is recommended at least Sphinx version $rec_version.\n";
+ }
+ }
+
+ # At this point, either it needs Sphinx or upgrade is recommended,
+ # both via pip
+
+ if ($rec_sphinx_upgrade) {
+ if (!$virtualenv) {
+ print "Instead of install/upgrade Python Sphinx pkg, you could use pip/pypi with:\n\n";
+ } else {
+ print "To upgrade Sphinx, use:\n\n";
+ }
+ } else {
+ print "Sphinx needs to be installed either as a package or via pip/pypi with:\n";
+ }
+
+ $python_cmd = find_python_no_venv();
+
+ printf "\t$virtualenv_cmd $virtenv_dir\n";
+
+ printf "\t. $virtenv_dir/bin/activate\n";
+ printf "\tpip install -r $requirement_file\n";
+ deactivate_help();
+}
+
sub check_needs()
{
# Check if Sphinx is already accessible from current environment
@@ -722,15 +877,14 @@ sub check_needs()
if ($virtualenv) {
my $tmp = qx($python_cmd --version 2>&1);
if ($tmp =~ m/(\d+\.)(\d+\.)/) {
- if ($1 >= 3 && $2 >= 3) {
- $need_venv = 1; # python 3.3 or upper
- } else {
- $need_virtualenv = 1;
- }
if ($1 < 3) {
# Fail if it finds python2 (or worse)
die "Python 3 is required to build the kernel docs\n";
}
+ if ($1 == 3 && $2 < 3) {
+ # Need Python 3.3 or upper for venv
+ $need_virtualenv = 1;
+ }
} else {
die "Warning: couldn't identify $python_cmd version!";
}
@@ -739,14 +893,22 @@ sub check_needs()
}
}
- # Set virtualenv command line, if python < 3.3
+ recommend_sphinx_upgrade();
+
my $virtualenv_cmd;
- if ($need_virtualenv) {
- $virtualenv_cmd = findprog("virtualenv-3");
- $virtualenv_cmd = findprog("virtualenv-3.5") if (!$virtualenv_cmd);
- if (!$virtualenv_cmd) {
- check_program("virtualenv", 0);
- $virtualenv_cmd = "virtualenv";
+
+ if ($need_pip) {
+ # Set virtualenv command line, if python < 3.3
+ if ($need_virtualenv) {
+ $virtualenv_cmd = findprog("virtualenv-3");
+ $virtualenv_cmd = findprog("virtualenv-3.5") if (!$virtualenv_cmd);
+ if (!$virtualenv_cmd) {
+ check_program("virtualenv", 0);
+ $virtualenv_cmd = "virtualenv";
+ }
+ } else {
+ $virtualenv_cmd = "$python_cmd -m venv";
+ check_python_module("ensurepip", 0);
}
}
@@ -763,10 +925,6 @@ sub check_needs()
check_program("rsvg-convert", 2) if ($pdf);
check_program("latexmk", 2) if ($pdf);
- if ($need_sphinx || $rec_sphinx_upgrade) {
- check_python_module("ensurepip", 0) if ($need_venv);
- }
-
# Do distro-specific checks and output distro-install commands
check_distros();
@@ -784,67 +942,7 @@ sub check_needs()
which("sphinx-build-3");
}
- # NOTE: if the system has a too old Sphinx version installed,
- # it will recommend installing a newer version using virtualenv
-
- if ($need_sphinx || $rec_sphinx_upgrade) {
- my $min_activate = "$ENV{'PWD'}/${virtenv_prefix}${min_version}/bin/activate";
- my @activates = glob "$ENV{'PWD'}/${virtenv_prefix}*/bin/activate";
-
- if ($cur_version lt $rec_version) {
- print "Warning: It is recommended at least Sphinx version $rec_version.\n";
- print " If you want pdf, you need at least $min_pdf_version.\n";
- }
- if ($cur_version lt $min_pdf_version) {
- print "Note: It is recommended at least Sphinx version $min_pdf_version if you need PDF support.\n";
- }
- @activates = sort {$b cmp $a} @activates;
- my ($activate, $ver);
- foreach my $f (@activates) {
- next if ($f lt $min_activate);
-
- my $sphinx_cmd = $f;
- $sphinx_cmd =~ s/activate/sphinx-build/;
- next if (! -f $sphinx_cmd);
-
- $ver = get_sphinx_version($sphinx_cmd);
- if ($need_sphinx && ($ver ge $min_version)) {
- $activate = $f;
- last;
- } elsif ($ver gt $cur_version) {
- $activate = $f;
- last;
- }
- }
- if ($activate ne "") {
- if ($need_sphinx) {
- printf "\nNeed to activate Sphinx (version $ver) on virtualenv with:\n";
- printf "\t. $activate\n";
- deactivate_help();
- exit (1);
- } else {
- printf "\nYou may also use a newer Sphinx (version $ver) with:\n";
- printf "\tdeactivate && . $activate\n";
- }
- } else {
- my $rec_activate = "$virtenv_dir/bin/activate";
-
- print "To upgrade Sphinx, use:\n\n" if ($rec_sphinx_upgrade);
-
- $python_cmd = find_python_no_venv();
-
- if ($need_venv) {
- printf "\t$python_cmd -m venv $virtenv_dir\n";
- } else {
- printf "\t$virtualenv_cmd $virtenv_dir\n";
- }
- printf "\t. $rec_activate\n";
- printf "\tpip install -r $requirement_file\n";
- deactivate_help();
-
- $need++ if (!$rec_sphinx_upgrade);
- }
- }
+ recommend_sphinx_version($virtualenv_cmd);
printf "\n";
print "All optional dependencies are met.\n" if (!$optional);
diff --git a/scripts/tools-support-relr.sh b/scripts/tools-support-relr.sh
index 45e8aa360b45..cb55878bd5b8 100755
--- a/scripts/tools-support-relr.sh
+++ b/scripts/tools-support-relr.sh
@@ -7,7 +7,8 @@ trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1
void *p = &p;
END
-$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
+$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr \
+ --use-android-relr-tags -o $tmp_file
# Despite printing an error message, GNU nm still exits with exit code 0 if it
# sees a relr section. So we need to check that nothing is printed to stderr.