|
 |
e6e23a |
Maintain an explicit order of tunables, so that the tunable_list
|
|
|
e6e23a |
array and the tunable_id_t constant can remain consistent over time.
|
|
|
e6e23a |
|
|
|
e6e23a |
Related to this upstream bug:
|
|
|
e6e23a |
|
|
|
e6e23a |
Internal tunables ABI depends on awk array iteration order
|
|
|
e6e23a |
<https://sourceware.org/bugzilla/show_bug.cgi?id=30027>
|
|
|
e6e23a |
|
|
|
e6e23a |
The new dl-tunables.list files are already on the sysdeps search
|
|
|
e6e23a |
path, which is why the existing Makeconfig rule picks them up.
|
|
|
e6e23a |
The files for RHEL 8.7.z were created by applying the gen-tunables.awk
|
|
|
e6e23a |
part of this patch to RHEL 8.7.0 (glibc-2.28-211.el8_7, to be precise).
|
|
|
e6e23a |
The sysdeps/unix/sysv/linux/**/dl-tunables.list files were created
|
|
|
e6e23a |
based on the generated error message during the RHEL 8.7.z build.
|
|
|
e6e23a |
Afterwards, the glibc.rtld.dynamic_sort tunable was added at the
|
|
|
e6e23a |
end of the files, for the RHEL 8.8.0 build.
|
|
|
e6e23a |
|
|
|
e6e23a |
Going forward, new tunables will have to be added manually to the end
|
|
|
e6e23a |
of those files. Existing tunables should not be deleted. For
|
|
|
e6e23a |
deletion, the script would have to be extended to be able to create
|
|
|
e6e23a |
gaps in the tunable_list array.
|
|
|
e6e23a |
|
|
|
e6e23a |
diff --git a/scripts/gen-tunables.awk b/scripts/gen-tunables.awk
|
|
|
e6e23a |
index 622199061a140ccd..8ebfb560976ead41 100644
|
|
|
e6e23a |
--- a/scripts/gen-tunables.awk
|
|
|
e6e23a |
+++ b/scripts/gen-tunables.awk
|
|
|
e6e23a |
@@ -12,6 +12,7 @@ BEGIN {
|
|
|
e6e23a |
tunable=""
|
|
|
e6e23a |
ns=""
|
|
|
e6e23a |
top_ns=""
|
|
|
e6e23a |
+ tunable_order_count = 0
|
|
|
e6e23a |
}
|
|
|
e6e23a |
|
|
|
e6e23a |
# Skip over blank lines and comments.
|
|
|
e6e23a |
@@ -78,6 +79,37 @@ $1 == "}" {
|
|
|
e6e23a |
next
|
|
|
e6e23a |
}
|
|
|
e6e23a |
|
|
|
e6e23a |
+$1 == "@order" {
|
|
|
e6e23a |
+ if (top_ns != "") {
|
|
|
e6e23a |
+ printf("%s:%d: error: invalid @order directive inside namespace %s\n",
|
|
|
e6e23a |
+ FILENAME, FNR, top_ns) > "/dev/stderr"
|
|
|
e6e23a |
+ exit 1
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ if (NF != 2) {
|
|
|
e6e23a |
+ printf("%s:%d: error: invalid argument count in @order directive\n",
|
|
|
e6e23a |
+ FILENAME, FNR) > "/dev/stderr"
|
|
|
e6e23a |
+ exit 1
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ order_arg = $2
|
|
|
e6e23a |
+ if (split(order_arg, indices, /\./) != 3) {
|
|
|
e6e23a |
+ printf("%s:%d: error: invalid tunable syntax in @order directive\n",
|
|
|
e6e23a |
+ FILENAME, FNR) > "/dev/stderr"
|
|
|
e6e23a |
+ exit 1
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ t = indices[1]
|
|
|
e6e23a |
+ n = indices[2]
|
|
|
e6e23a |
+ m = indices[3]
|
|
|
e6e23a |
+ if ((t, n, m) in tunable_order) {
|
|
|
e6e23a |
+ printf("%s:%d: error: duplicate\"@order %s\"\n" \
|
|
|
e6e23a |
+ FILENAME, FNR, order_arg) > "/dev/stderr"
|
|
|
e6e23a |
+ exit 1
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ ++tunable_order_count
|
|
|
e6e23a |
+ tunable_order[t,n,m] = tunable_order_count
|
|
|
e6e23a |
+ tunable_order_list[tunable_order_count] = t SUBSEP n SUBSEP m
|
|
|
e6e23a |
+ next
|
|
|
e6e23a |
+}
|
|
|
e6e23a |
+
|
|
|
e6e23a |
# Everything else, which could either be a tunable without any attributes or a
|
|
|
e6e23a |
# tunable attribute.
|
|
|
e6e23a |
{
|
|
|
e6e23a |
@@ -137,6 +169,31 @@ END {
|
|
|
e6e23a |
exit 1
|
|
|
e6e23a |
}
|
|
|
e6e23a |
|
|
|
e6e23a |
+ missing_order = 0
|
|
|
e6e23a |
+ for (tnm in types) {
|
|
|
e6e23a |
+ if (!(tnm in tunable_order)) {
|
|
|
e6e23a |
+ if (!missing_order) {
|
|
|
e6e23a |
+ print "error: Missing @order directives:" > "/dev/stderr"
|
|
|
e6e23a |
+ missing_order = 1
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ split(tnm, indices, SUBSEP)
|
|
|
e6e23a |
+ printf("@order %s.%s.%s\n", indices[1], indices[2], indices[3]) \
|
|
|
e6e23a |
+ > "/dev/stderr"
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ for (i = 1; i <= tunable_order_count; ++i) {
|
|
|
e6e23a |
+ tnm = tunable_order_list[i]
|
|
|
e6e23a |
+ if (!(tnm in types)) {
|
|
|
e6e23a |
+ split(tnm, indices, SUBSEP)
|
|
|
e6e23a |
+ printf("error: tunable in \"@order %s.%s.%s\" not known\n", \
|
|
|
e6e23a |
+ indices[1], indices[2], indices[3]) > "/dev/stderr"
|
|
|
e6e23a |
+ missing_order = 1
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+ if (missing_order) {
|
|
|
e6e23a |
+ exit 1
|
|
|
e6e23a |
+ }
|
|
|
e6e23a |
+
|
|
|
e6e23a |
print "/* AUTOGENERATED by gen-tunables.awk. */"
|
|
|
e6e23a |
print "#ifndef _TUNABLES_H_"
|
|
|
e6e23a |
print "# error \"Do not include this file directly.\""
|
|
|
e6e23a |
@@ -147,7 +204,8 @@ END {
|
|
|
e6e23a |
# Now, the enum names
|
|
|
e6e23a |
print "\ntypedef enum"
|
|
|
e6e23a |
print "{"
|
|
|
e6e23a |
- for (tnm in types) {
|
|
|
e6e23a |
+ for (i = 1; i <= tunable_order_count; ++i) {
|
|
|
e6e23a |
+ tnm = tunable_order_list[i]
|
|
|
e6e23a |
split (tnm, indices, SUBSEP);
|
|
|
e6e23a |
t = indices[1];
|
|
|
e6e23a |
n = indices[2];
|
|
|
e6e23a |
@@ -159,7 +217,8 @@ END {
|
|
|
e6e23a |
# Finally, the tunable list.
|
|
|
e6e23a |
print "\n#ifdef TUNABLES_INTERNAL"
|
|
|
e6e23a |
print "static tunable_t tunable_list[] attribute_relro = {"
|
|
|
e6e23a |
- for (tnm in types) {
|
|
|
e6e23a |
+ for (i = 1; i <= tunable_order_count; ++i) {
|
|
|
e6e23a |
+ tnm = tunable_order_list[i]
|
|
|
e6e23a |
split (tnm, indices, SUBSEP);
|
|
|
e6e23a |
t = indices[1];
|
|
|
e6e23a |
n = indices[2];
|
|
|
e6e23a |
diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-tunables.list b/sysdeps/unix/sysv/linux/aarch64/dl-tunables.list
|
|
|
e6e23a |
new file mode 100644
|
|
|
e6e23a |
index 0000000000000000..5c3c5292025607a1
|
|
|
e6e23a |
--- /dev/null
|
|
|
e6e23a |
+++ b/sysdeps/unix/sysv/linux/aarch64/dl-tunables.list
|
|
|
e6e23a |
@@ -0,0 +1,26 @@
|
|
|
e6e23a |
+# Order of tunables in RHEL 8.7.0.
|
|
|
e6e23a |
+@order glibc.rtld.nns
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_after_retries
|
|
|
e6e23a |
+@order glibc.malloc.trim_threshold
|
|
|
e6e23a |
+@order glibc.malloc.perturb
|
|
|
e6e23a |
+@order glibc.cpu.name
|
|
|
e6e23a |
+@order glibc.elision.tries
|
|
|
e6e23a |
+@order glibc.elision.enable
|
|
|
e6e23a |
+@order glibc.malloc.mxfast
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_busy
|
|
|
e6e23a |
+@order glibc.malloc.top_pad
|
|
|
e6e23a |
+@order glibc.cpu.hwcap_mask
|
|
|
e6e23a |
+@order glibc.malloc.mmap_max
|
|
|
e6e23a |
+@order glibc.elision.skip_trylock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.tcache_unsorted_limit
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.arena_max
|
|
|
e6e23a |
+@order glibc.malloc.mmap_threshold
|
|
|
e6e23a |
+@order glibc.malloc.tcache_count
|
|
|
e6e23a |
+@order glibc.malloc.arena_test
|
|
|
e6e23a |
+@order glibc.rtld.optional_static_tls
|
|
|
e6e23a |
+@order glibc.malloc.tcache_max
|
|
|
e6e23a |
+@order glibc.malloc.check
|
|
|
e6e23a |
+
|
|
|
e6e23a |
+# Tunables added in RHEL 8.8.0
|
|
|
e6e23a |
+@order glibc.rtld.dynamic_sort
|
|
|
e6e23a |
diff --git a/sysdeps/unix/sysv/linux/i386/dl-tunables.list b/sysdeps/unix/sysv/linux/i386/dl-tunables.list
|
|
|
e6e23a |
new file mode 100644
|
|
|
e6e23a |
index 0000000000000000..b9cad4af62d9f2e5
|
|
|
e6e23a |
--- /dev/null
|
|
|
e6e23a |
+++ b/sysdeps/unix/sysv/linux/i386/dl-tunables.list
|
|
|
e6e23a |
@@ -0,0 +1,33 @@
|
|
|
e6e23a |
+# Order of tunables in RHEL 8.7.0.
|
|
|
e6e23a |
+@order glibc.rtld.nns
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_after_retries
|
|
|
e6e23a |
+@order glibc.malloc.trim_threshold
|
|
|
e6e23a |
+@order glibc.malloc.perturb
|
|
|
e6e23a |
+@order glibc.cpu.x86_shared_cache_size
|
|
|
e6e23a |
+@order glibc.elision.tries
|
|
|
e6e23a |
+@order glibc.elision.enable
|
|
|
e6e23a |
+@order glibc.cpu.x86_rep_movsb_threshold
|
|
|
e6e23a |
+@order glibc.malloc.mxfast
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_busy
|
|
|
e6e23a |
+@order glibc.malloc.top_pad
|
|
|
e6e23a |
+@order glibc.cpu.x86_rep_stosb_threshold
|
|
|
e6e23a |
+@order glibc.cpu.x86_non_temporal_threshold
|
|
|
e6e23a |
+@order glibc.cpu.x86_shstk
|
|
|
e6e23a |
+@order glibc.cpu.hwcap_mask
|
|
|
e6e23a |
+@order glibc.malloc.mmap_max
|
|
|
e6e23a |
+@order glibc.elision.skip_trylock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.tcache_unsorted_limit
|
|
|
e6e23a |
+@order glibc.cpu.x86_ibt
|
|
|
e6e23a |
+@order glibc.cpu.hwcaps
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.arena_max
|
|
|
e6e23a |
+@order glibc.malloc.mmap_threshold
|
|
|
e6e23a |
+@order glibc.cpu.x86_data_cache_size
|
|
|
e6e23a |
+@order glibc.malloc.tcache_count
|
|
|
e6e23a |
+@order glibc.malloc.arena_test
|
|
|
e6e23a |
+@order glibc.rtld.optional_static_tls
|
|
|
e6e23a |
+@order glibc.malloc.tcache_max
|
|
|
e6e23a |
+@order glibc.malloc.check
|
|
|
e6e23a |
+
|
|
|
e6e23a |
+# Tunables added in RHEL 8.8.0
|
|
|
e6e23a |
+@order glibc.rtld.dynamic_sort
|
|
|
e6e23a |
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/dl-tunables.list b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/dl-tunables.list
|
|
|
e6e23a |
new file mode 100644
|
|
|
e6e23a |
index 0000000000000000..ee1e6fca95e1f2da
|
|
|
e6e23a |
--- /dev/null
|
|
|
e6e23a |
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/dl-tunables.list
|
|
|
e6e23a |
@@ -0,0 +1,26 @@
|
|
|
e6e23a |
+# Order of tunables in RHEL 8.7.0.
|
|
|
e6e23a |
+@order glibc.rtld.nns
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_after_retries
|
|
|
e6e23a |
+@order glibc.malloc.trim_threshold
|
|
|
e6e23a |
+@order glibc.malloc.perturb
|
|
|
e6e23a |
+@order glibc.elision.tries
|
|
|
e6e23a |
+@order glibc.elision.enable
|
|
|
e6e23a |
+@order glibc.malloc.mxfast
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_busy
|
|
|
e6e23a |
+@order glibc.malloc.top_pad
|
|
|
e6e23a |
+@order glibc.cpu.hwcap_mask
|
|
|
e6e23a |
+@order glibc.malloc.mmap_max
|
|
|
e6e23a |
+@order glibc.elision.skip_trylock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.tcache_unsorted_limit
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.arena_max
|
|
|
e6e23a |
+@order glibc.malloc.mmap_threshold
|
|
|
e6e23a |
+@order glibc.cpu.cached_memopt
|
|
|
e6e23a |
+@order glibc.malloc.tcache_count
|
|
|
e6e23a |
+@order glibc.malloc.arena_test
|
|
|
e6e23a |
+@order glibc.rtld.optional_static_tls
|
|
|
e6e23a |
+@order glibc.malloc.tcache_max
|
|
|
e6e23a |
+@order glibc.malloc.check
|
|
|
e6e23a |
+
|
|
|
e6e23a |
+# Tunables added in RHEL 8.8.0
|
|
|
e6e23a |
+@order glibc.rtld.dynamic_sort
|
|
|
e6e23a |
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/dl-tunables.list b/sysdeps/unix/sysv/linux/s390/s390-64/dl-tunables.list
|
|
|
e6e23a |
new file mode 100644
|
|
|
e6e23a |
index 0000000000000000..099e28d8f8e67944
|
|
|
e6e23a |
--- /dev/null
|
|
|
e6e23a |
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/dl-tunables.list
|
|
|
e6e23a |
@@ -0,0 +1,25 @@
|
|
|
e6e23a |
+# Order of tunables in RHEL 8.7.0.
|
|
|
e6e23a |
+@order glibc.rtld.nns
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_after_retries
|
|
|
e6e23a |
+@order glibc.malloc.trim_threshold
|
|
|
e6e23a |
+@order glibc.malloc.perturb
|
|
|
e6e23a |
+@order glibc.elision.tries
|
|
|
e6e23a |
+@order glibc.elision.enable
|
|
|
e6e23a |
+@order glibc.malloc.mxfast
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_busy
|
|
|
e6e23a |
+@order glibc.malloc.top_pad
|
|
|
e6e23a |
+@order glibc.cpu.hwcap_mask
|
|
|
e6e23a |
+@order glibc.malloc.mmap_max
|
|
|
e6e23a |
+@order glibc.elision.skip_trylock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.tcache_unsorted_limit
|
|
|
e6e23a |
+@order glibc.elision.skip_lock_internal_abort
|
|
|
e6e23a |
+@order glibc.malloc.arena_max
|
|
|
e6e23a |
+@order glibc.malloc.mmap_threshold
|
|
|
e6e23a |
+@order glibc.malloc.tcache_count
|
|
|
e6e23a |
+@order glibc.malloc.arena_test
|
|
|
e6e23a |
+@order glibc.rtld.optional_static_tls
|
|
|
e6e23a |
+@order glibc.malloc.tcache_max
|
|
|
e6e23a |
+@order glibc.malloc.check
|
|
|
e6e23a |
+
|
|
|
e6e23a |
+# Tunables added in RHEL 8.8.0
|
|
|
e6e23a |
+@order glibc.rtld.dynamic_sort
|
|
|
e6e23a |
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/dl-tunables.list b/sysdeps/unix/sysv/linux/x86_64/64/dl-tunables.list
|
|
|
e6e23a |
new file mode 100644
|
|
|
e6e23a |
index 0000000000000000..b9cad4af62d9f2e5
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--- /dev/null
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+++ b/sysdeps/unix/sysv/linux/x86_64/64/dl-tunables.list
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@@ -0,0 +1,33 @@
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+# Order of tunables in RHEL 8.7.0.
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+@order glibc.rtld.nns
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+@order glibc.elision.skip_lock_after_retries
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+@order glibc.malloc.trim_threshold
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+@order glibc.malloc.perturb
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+@order glibc.cpu.x86_shared_cache_size
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+@order glibc.elision.tries
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+@order glibc.elision.enable
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+@order glibc.cpu.x86_rep_movsb_threshold
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+@order glibc.malloc.mxfast
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+@order glibc.elision.skip_lock_busy
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+@order glibc.malloc.top_pad
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+@order glibc.cpu.x86_rep_stosb_threshold
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+@order glibc.cpu.x86_non_temporal_threshold
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+@order glibc.cpu.x86_shstk
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+@order glibc.cpu.hwcap_mask
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+@order glibc.malloc.mmap_max
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+@order glibc.elision.skip_trylock_internal_abort
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+@order glibc.malloc.tcache_unsorted_limit
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+@order glibc.cpu.x86_ibt
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+@order glibc.cpu.hwcaps
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+@order glibc.elision.skip_lock_internal_abort
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+@order glibc.malloc.arena_max
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+@order glibc.malloc.mmap_threshold
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+@order glibc.cpu.x86_data_cache_size
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+@order glibc.malloc.tcache_count
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+@order glibc.malloc.arena_test
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+@order glibc.rtld.optional_static_tls
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+@order glibc.malloc.tcache_max
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+@order glibc.malloc.check
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+
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+# Tunables added in RHEL 8.8.0
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+@order glibc.rtld.dynamic_sort
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