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Import glibc-2.34-20.fc35 from f35

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* Wed Jan 19 2022 Florian Weimer <fweimer@redhat.com> - 2.34-20
- More reliable CPU compatibility diagnostics (#2040657)

Resolves: #2040657
This commit is contained in:
Florian Weimer 2022-01-20 18:48:56 +01:00
parent c77b926c9d
commit bdebdc5e8b
13 changed files with 2529 additions and 1 deletions
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547
glibc-rh2040657-1.patch Normal file
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@ -0,0 +1,547 @@
commit 28713c06129f8f64f88c423266e6ff2880216509
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Dec 13 09:43:52 2021 -0800
elf: Sort tests and modules-names
Sort tests and modules-names to reduce future conflicts.
Conflicts:
elf/Makefile
(Usual backport differences. Recreated tests and module-names
from scratch. Note that the upstream sort order is difficult
to fathom.)
diff --git a/elf/Makefile b/elf/Makefile
index 535ba4260fb98e64..33df5b4714176adc 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -193,40 +193,134 @@ static-dlopen-environment = \
tst-tls9-static-ENV = $(static-dlopen-environment)
tst-single_threaded-static-dlopen-ENV = $(static-dlopen-environment)
-tests += restest1 preloadtest loadfail multiload origtest resolvfail \
- constload1 order noload filter \
- reldep reldep2 reldep3 reldep4 nodelete nodelete2 \
- nodlopen nodlopen2 lateglobal initfirst global \
- restest2 next dblload dblunload reldep5 reldep6 reldep7 reldep8 \
- tst-tls4 tst-tls5 \
- tst-tls10 tst-tls11 tst-tls12 tst-tls13 tst-tls14 tst-tls15 \
- tst-tls16 tst-tls17 tst-tls18 tst-tls19 tst-tls-dlinfo \
- tst-align tst-align2 \
- tst-dlmodcount tst-dlopenrpath tst-deep1 \
- tst-dlmopen1 tst-dlmopen3 \
- unload3 unload4 unload5 unload6 unload7 unload8 tst-global1 order2 \
- tst-audit1 tst-audit2 tst-audit8 tst-audit9 \
- tst-addr1 tst-thrlock \
- tst-unique1 tst-unique2 $(if $(CXX),tst-unique3 tst-unique4 \
- tst-nodelete tst-dlopen-nodelete-reloc) \
- tst-initorder tst-initorder2 tst-relsort1 tst-null-argv \
- tst-tlsalign tst-tlsalign-extern tst-nodelete-opened \
- tst-nodelete2 tst-audit11 tst-audit12 tst-dlsym-error tst-noload \
- tst-latepthread tst-tls-manydynamic tst-nodelete-dlclose \
- tst-debug1 tst-main1 tst-absolute-sym tst-absolute-zero tst-big-note \
- tst-unwind-ctor tst-unwind-main tst-audit13 \
- tst-sonamemove-link tst-sonamemove-dlopen tst-dlopen-tlsmodid \
- tst-dlopen-self tst-auditmany tst-initfinilazyfail tst-dlopenfail \
- tst-dlopenfail-2 \
- tst-filterobj tst-filterobj-dlopen tst-auxobj tst-auxobj-dlopen \
- tst-audit14 tst-audit15 tst-audit16 tst-audit17 \
- tst-single_threaded tst-single_threaded-pthread \
- tst-tls-ie tst-tls-ie-dlmopen argv0test \
- tst-glibc-hwcaps tst-glibc-hwcaps-prepend tst-glibc-hwcaps-mask \
- tst-tls20 tst-tls21 tst-dlmopen-dlerror tst-dlmopen-gethostbyname \
- tst-dl-is_dso tst-ro-dynamic \
- tst-rtld-run-static \
+tests += \
+ argv0test \
+ constload1 \
+ dblload \
+ dblunload \
+ filter \
+ global \
+ initfirst \
+ lateglobal \
+ loadfail \
+ multiload \
+ next \
+ nodelete \
+ nodelete2 \
+ nodlopen \
+ nodlopen2 \
+ noload \
+ order \
+ order2 \
+ origtest \
+ preloadtest \
+ reldep \
+ reldep2 \
+ reldep3 \
+ reldep4 \
+ reldep5 \
+ reldep6 \
+ reldep7 \
+ reldep8 \
+ resolvfail \
+ restest1 \
+ restest2 \
+ tst-absolute-sym \
+ tst-absolute-zero \
+ tst-addr1 \
+ tst-align \
+ tst-align2 \
+ tst-audit1 \
+ tst-audit2 \
+ tst-audit8 \
+ tst-audit9 \
+ tst-audit11 \
+ tst-audit12 \
+ tst-audit13 \
+ tst-audit14 \
+ tst-audit15 \
+ tst-audit16 \
+ tst-audit17 \
+ tst-auditmany \
+ tst-auxobj \
+ tst-auxobj-dlopen \
+ tst-big-note \
+ tst-debug1 \
+ tst-deep1 \
+ tst-dl-is_dso \
+ tst-dlmodcount \
+ tst-dlmopen1 \
+ tst-dlmopen3 \
+ tst-dlmopen-dlerror \
+ tst-dlmopen-gethostbyname \
+ tst-dlopenfail \
+ tst-dlopenfail-2 \
+ tst-dlopenrpath \
+ tst-dlopen-self \
+ tst-dlopen-tlsmodid \
+ tst-dlsym-error \
+ tst-filterobj \
+ tst-filterobj-dlopen \
+ tst-glibc-hwcaps \
+ tst-glibc-hwcaps-mask \
+ tst-glibc-hwcaps-prepend \
+ tst-global1 \
+ tst-initfinilazyfail \
+ tst-initorder \
+ tst-initorder2 \
+ tst-latepthread \
+ tst-main1 \
+ tst-nodelete2 \
+ tst-nodelete-dlclose \
+ tst-nodelete-opened \
+ tst-noload \
+ tst-null-argv \
+ tst-relsort1 \
+ tst-ro-dynamic \
+ tst-rtld-run-static \
+ tst-single_threaded \
+ tst-single_threaded-pthread \
+ tst-sonamemove-dlopen \
+ tst-sonamemove-link \
+ tst-thrlock \
+ tst-tls10 \
+ tst-tls11 \
+ tst-tls12 \
+ tst-tls13 \
+ tst-tls14 \
+ tst-tls15 \
+ tst-tls16 \
+ tst-tls17 \
+ tst-tls18 \
+ tst-tls19 \
+ tst-tls20 \
+ tst-tls21 \
+ tst-tls4 \
+ tst-tls5 \
+ tst-tlsalign \
+ tst-tlsalign-extern \
+ tst-tls-dlinfo \
+ tst-tls-ie \
+ tst-tls-ie-dlmopen \
+ tst-tls-manydynamic \
+ tst-unique1 \
+ tst-unique2 \
+ tst-unwind-ctor \
+ tst-unwind-main \
+ unload3 \
+ unload4 \
+ unload5 \
+ unload6 \
+ unload7 \
+ unload8 \
# reldep9
+tests-cxx = \
+ tst-dlopen-nodelete-reloc \
+ tst-nodelete \
+ tst-unique3 \
+ tst-unique4 \
+
+tests += $(if $(CXX),$(tests-cxx))
tests-internal += loadtest unload unload2 circleload1 \
neededtest neededtest2 neededtest3 neededtest4 \
tst-tls3 tst-tls6 tst-tls7 tst-tls8 tst-dlmopen2 \
@@ -264,101 +358,265 @@ tst-tls-many-dynamic-modules-dep-bad = \
extra-test-objs += $(tlsmod17a-modules:=.os) $(tlsmod18a-modules:=.os) \
tst-tlsalign-vars.o
test-extras += tst-tlsmod17a tst-tlsmod18a tst-tlsalign-vars
-modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
- testobj1_1 failobj constload2 constload3 unloadmod \
- dep1 dep2 dep3 dep4 vismod1 vismod2 vismod3 \
- nodelmod1 nodelmod2 nodelmod3 nodelmod4 \
- nodel2mod1 nodel2mod2 nodel2mod3 \
- nodlopenmod nodlopenmod2 filtmod1 filtmod2 \
- reldepmod1 reldepmod2 reldepmod3 reldepmod4 nextmod1 nextmod2 \
- reldep4mod1 reldep4mod2 reldep4mod3 reldep4mod4 \
- neededobj1 neededobj2 neededobj3 neededobj4 \
- neededobj5 neededobj6 firstobj globalmod1 \
- unload2mod unload2dep ltglobmod1 ltglobmod2 pathoptobj \
- dblloadmod1 dblloadmod2 dblloadmod3 reldepmod5 reldepmod6 \
- reldep6mod0 reldep6mod1 reldep6mod2 reldep6mod3 reldep6mod4 \
- reldep7mod1 reldep7mod2 \
- tst-tlsmod1 tst-tlsmod2 tst-tlsmod3 tst-tlsmod4 \
- tst-tlsmod5 tst-tlsmod6 tst-tlsmod7 tst-tlsmod8 \
- tst-tlsmod9 tst-tlsmod10 tst-tlsmod11 tst-tlsmod12 \
- tst-tlsmod13 tst-tlsmod13a tst-tlsmod14a tst-tlsmod14b \
- tst-tlsmod15a tst-tlsmod15b tst-tlsmod16a tst-tlsmod16b \
- $(tlsmod17a-modules) tst-tlsmod17b $(tlsmod18a-modules) \
- tst-tls19mod1 tst-tls19mod2 tst-tls19mod3 \
- circlemod1 circlemod1a circlemod2 circlemod2a \
- circlemod3 circlemod3a \
- reldep8mod1 reldep8mod2 reldep8mod3 \
- reldep9mod1 reldep9mod2 reldep9mod3 \
- tst-alignmod tst-alignmod2 \
- $(modules-execstack-$(have-z-execstack)) \
- tst-dlopenrpathmod tst-deep1mod1 tst-deep1mod2 tst-deep1mod3 \
- tst-dlmopen1mod tst-auditmod1 \
- unload3mod1 unload3mod2 unload3mod3 unload3mod4 \
- unload4mod1 unload4mod2 unload4mod3 unload4mod4 \
- unload6mod1 unload6mod2 unload6mod3 \
- unload7mod1 unload7mod2 \
- unload8mod1 unload8mod1x unload8mod2 unload8mod3 \
- order2mod1 order2mod2 order2mod3 order2mod4 \
- tst-unique1mod1 tst-unique1mod2 \
- tst-unique2mod1 tst-unique2mod2 \
- tst-auditmod9a tst-auditmod9b \
- $(if $(CXX),tst-unique3lib tst-unique3lib2 tst-unique4lib \
- tst-nodelete-uniquemod tst-nodelete-rtldmod \
- tst-nodelete-zmod \
- tst-dlopen-nodelete-reloc-mod1 \
- tst-dlopen-nodelete-reloc-mod2 \
- tst-dlopen-nodelete-reloc-mod3 \
- tst-dlopen-nodelete-reloc-mod4 \
- tst-dlopen-nodelete-reloc-mod5 \
- tst-dlopen-nodelete-reloc-mod6 \
- tst-dlopen-nodelete-reloc-mod7 \
- tst-dlopen-nodelete-reloc-mod8 \
- tst-dlopen-nodelete-reloc-mod9 \
- tst-dlopen-nodelete-reloc-mod10 \
- tst-dlopen-nodelete-reloc-mod11 \
- tst-dlopen-nodelete-reloc-mod12 \
- tst-dlopen-nodelete-reloc-mod13 \
- tst-dlopen-nodelete-reloc-mod14 \
- tst-dlopen-nodelete-reloc-mod15 \
- tst-dlopen-nodelete-reloc-mod16 \
- tst-dlopen-nodelete-reloc-mod17) \
- tst-initordera1 tst-initorderb1 \
- tst-initordera2 tst-initorderb2 \
- tst-initordera3 tst-initordera4 \
- tst-initorder2a tst-initorder2b tst-initorder2c \
- tst-initorder2d \
- tst-relsort1mod1 tst-relsort1mod2 tst-array2dep \
- tst-array5dep tst-null-argv-lib \
- tst-tlsalign-lib tst-nodelete-opened-lib tst-nodelete2mod \
- tst-audit11mod1 tst-audit11mod2 tst-auditmod11 \
- tst-audit12mod1 tst-audit12mod2 tst-audit12mod3 tst-auditmod12 \
- tst-latepthreadmod $(tst-tls-many-dynamic-modules) \
- $(tst-tls-many-dynamic-modules-dep) \
- $(tst-tls-many-dynamic-modules-dep-bad) \
- tst-nodelete-dlclose-dso tst-nodelete-dlclose-plugin \
- tst-main1mod tst-absolute-sym-lib \
- tst-absolute-zero-lib tst-big-note-lib tst-unwind-ctor-lib \
- tst-audit13mod1 tst-sonamemove-linkmod1 \
- tst-sonamemove-runmod1 tst-sonamemove-runmod2 \
- tst-auditmanymod1 tst-auditmanymod2 tst-auditmanymod3 \
- tst-auditmanymod4 tst-auditmanymod5 tst-auditmanymod6 \
- tst-auditmanymod7 tst-auditmanymod8 tst-auditmanymod9 \
- tst-initlazyfailmod tst-finilazyfailmod \
- tst-dlopenfailmod1 tst-dlopenfaillinkmod tst-dlopenfailmod2 \
- tst-dlopenfailmod3 tst-dlopenfailnodelmod tst-ldconfig-ld-mod \
- tst-filterobj-flt tst-filterobj-aux tst-filterobj-filtee \
- tst-auditlogmod-1 tst-auditlogmod-2 tst-auditlogmod-3 \
- tst-single_threaded-mod1 tst-single_threaded-mod2 \
- tst-single_threaded-mod3 tst-single_threaded-mod4 \
- tst-tls-ie-mod0 tst-tls-ie-mod1 tst-tls-ie-mod2 \
- tst-tls-ie-mod3 tst-tls-ie-mod4 tst-tls-ie-mod5 \
- tst-tls-ie-mod6 libmarkermod1-1 libmarkermod1-2 libmarkermod1-3 \
- libmarkermod2-1 libmarkermod2-2 \
- libmarkermod3-1 libmarkermod3-2 libmarkermod3-3 \
- libmarkermod4-1 libmarkermod4-2 libmarkermod4-3 libmarkermod4-4 \
- tst-tls20mod-bad tst-tls21mod tst-dlmopen-dlerror-mod \
- tst-auxvalmod \
- tst-dlmopen-gethostbyname-mod tst-ro-dynamic-mod \
+modules-names = \
+ circlemod1 \
+ circlemod1a \
+ circlemod2 \
+ circlemod2a \
+ circlemod3 \
+ circlemod3a \
+ constload2 \
+ constload3 \
+ dblloadmod1 \
+ dblloadmod2 \
+ dblloadmod3 \
+ dep1 \
+ dep2 \
+ dep3 \
+ dep4 \
+ failobj \
+ filtmod1 \
+ filtmod2 \
+ firstobj \
+ globalmod1 \
+ libmarkermod1-1 \
+ libmarkermod1-2 \
+ libmarkermod1-3 \
+ libmarkermod2-1 \
+ libmarkermod2-2 \
+ libmarkermod3-1 \
+ libmarkermod3-2 \
+ libmarkermod3-3 \
+ libmarkermod4-1 \
+ libmarkermod4-2 \
+ libmarkermod4-3 \
+ libmarkermod4-4 \
+ ltglobmod1 \
+ ltglobmod2 \
+ neededobj1 \
+ neededobj2 \
+ neededobj3 \
+ neededobj4 \
+ neededobj5 \
+ neededobj6 \
+ nextmod1 \
+ nextmod2 \
+ nodel2mod1 \
+ nodel2mod2 \
+ nodel2mod3 \
+ nodelmod1 \
+ nodelmod2 \
+ nodelmod3 \
+ nodelmod4 \
+ nodlopenmod \
+ nodlopenmod2 \
+ order2mod1 \
+ order2mod2 \
+ order2mod3 \
+ order2mod4 \
+ pathoptobj \
+ reldep4mod1 \
+ reldep4mod2 \
+ reldep4mod3 \
+ reldep4mod4 \
+ reldep6mod0 \
+ reldep6mod1 \
+ reldep6mod2 \
+ reldep6mod3 \
+ reldep6mod4 \
+ reldep7mod1 \
+ reldep7mod2 \
+ reldep8mod1 \
+ reldep8mod2 \
+ reldep8mod3 \
+ reldep9mod1 \
+ reldep9mod2 \
+ reldep9mod3 \
+ reldepmod1 \
+ reldepmod2 \
+ reldepmod3 \
+ reldepmod4 \
+ reldepmod5 \
+ reldepmod6 \
+ testobj1 \
+ testobj1_1 \
+ testobj2 \
+ testobj3 \
+ testobj4 \
+ testobj5 \
+ testobj6 \
+ tst-absolute-sym-lib \
+ tst-absolute-zero-lib \
+ tst-alignmod \
+ tst-alignmod2 \
+ tst-array2dep \
+ tst-array5dep \
+ tst-audit11mod1 \
+ tst-audit11mod2 \
+ tst-audit12mod1 \
+ tst-audit12mod2 \
+ tst-audit12mod3 \
+ tst-audit13mod1 \
+ tst-auditlogmod-1 \
+ tst-auditlogmod-2 \
+ tst-auditlogmod-3 \
+ tst-auditmanymod1 \
+ tst-auditmanymod2 \
+ tst-auditmanymod3 \
+ tst-auditmanymod4 \
+ tst-auditmanymod5 \
+ tst-auditmanymod6 \
+ tst-auditmanymod7 \
+ tst-auditmanymod8 \
+ tst-auditmanymod9 \
+ tst-auditmod1 \
+ tst-auditmod9a \
+ tst-auditmod9b \
+ tst-auditmod11 \
+ tst-auditmod12 \
+ tst-auxvalmod \
+ tst-big-note-lib \
+ tst-deep1mod1 \
+ tst-deep1mod2 \
+ tst-deep1mod3 \
+ tst-dlmopen1mod \
+ tst-dlmopen-dlerror-mod \
+ tst-dlmopen-gethostbyname-mod \
+ tst-dlopenfaillinkmod \
+ tst-dlopenfailmod1 \
+ tst-dlopenfailmod2 \
+ tst-dlopenfailmod3 \
+ tst-dlopenfailnodelmod \
+ tst-dlopenrpathmod \
+ tst-filterobj-aux \
+ tst-filterobj-filtee \
+ tst-filterobj-flt \
+ tst-finilazyfailmod \
+ tst-initlazyfailmod \
+ tst-initorder2a \
+ tst-initorder2b \
+ tst-initorder2c \
+ tst-initorder2d \
+ tst-initordera1 \
+ tst-initordera2 \
+ tst-initordera3 \
+ tst-initordera4 \
+ tst-initorderb1 \
+ tst-initorderb2 \
+ tst-latepthreadmod \
+ tst-ldconfig-ld-mod \
+ tst-main1mod \
+ tst-nodelete2mod \
+ tst-nodelete-dlclose-dso \
+ tst-nodelete-dlclose-plugin \
+ tst-nodelete-opened-lib \
+ tst-null-argv-lib \
+ tst-relsort1mod1 \
+ tst-relsort1mod2 \
+ tst-ro-dynamic-mod \
+ tst-single_threaded-mod1 \
+ tst-single_threaded-mod2 \
+ tst-single_threaded-mod3 \
+ tst-single_threaded-mod4 \
+ tst-sonamemove-linkmod1 \
+ tst-sonamemove-runmod1 \
+ tst-sonamemove-runmod2 \
+ tst-tls19mod1 \
+ tst-tls19mod2 \
+ tst-tls19mod3 \
+ tst-tls20mod-bad \
+ tst-tls21mod \
+ tst-tlsalign-lib \
+ tst-tls-ie-mod0 \
+ tst-tls-ie-mod1 \
+ tst-tls-ie-mod2 \
+ tst-tls-ie-mod3 \
+ tst-tls-ie-mod4 \
+ tst-tls-ie-mod5 \
+ tst-tls-ie-mod6 \
+ tst-tlsmod1 \
+ tst-tlsmod10 \
+ tst-tlsmod11 \
+ tst-tlsmod12 \
+ tst-tlsmod13 \
+ tst-tlsmod13a \
+ tst-tlsmod14a \
+ tst-tlsmod14b \
+ tst-tlsmod15a \
+ tst-tlsmod15b \
+ tst-tlsmod16a \
+ tst-tlsmod16b \
+ tst-tlsmod17b \
+ tst-tlsmod2 \
+ tst-tlsmod3 \
+ tst-tlsmod4 \
+ tst-tlsmod5 \
+ tst-tlsmod6 \
+ tst-tlsmod7 \
+ tst-tlsmod8 \
+ tst-tlsmod9 \
+ tst-unique1mod1 \
+ tst-unique1mod2 \
+ tst-unique2mod1 \
+ tst-unique2mod2 \
+ tst-unwind-ctor-lib \
+ unload2dep \
+ unload2mod \
+ unload3mod1 \
+ unload3mod2 \
+ unload3mod3 \
+ unload3mod4 \
+ unload4mod1 \
+ unload4mod2 \
+ unload4mod3 \
+ unload4mod4 \
+ unload6mod1 \
+ unload6mod2 \
+ unload6mod3 \
+ unload7mod1 \
+ unload7mod2 \
+ unload8mod1 \
+ unload8mod1x \
+ unload8mod2 \
+ unload8mod3 \
+ unloadmod \
+ vismod1 \
+ vismod2 \
+ vismod3 \
+
+modules-names-cxx = \
+ tst-dlopen-nodelete-reloc-mod1 \
+ tst-dlopen-nodelete-reloc-mod10 \
+ tst-dlopen-nodelete-reloc-mod11 \
+ tst-dlopen-nodelete-reloc-mod12 \
+ tst-dlopen-nodelete-reloc-mod13 \
+ tst-dlopen-nodelete-reloc-mod14 \
+ tst-dlopen-nodelete-reloc-mod15 \
+ tst-dlopen-nodelete-reloc-mod16 \
+ tst-dlopen-nodelete-reloc-mod17 \
+ tst-dlopen-nodelete-reloc-mod2 \
+ tst-dlopen-nodelete-reloc-mod3 \
+ tst-dlopen-nodelete-reloc-mod4 \
+ tst-dlopen-nodelete-reloc-mod5 \
+ tst-dlopen-nodelete-reloc-mod6 \
+ tst-dlopen-nodelete-reloc-mod7 \
+ tst-dlopen-nodelete-reloc-mod8 \
+ tst-dlopen-nodelete-reloc-mod9 \
+ tst-nodelete-rtldmod \
+ tst-nodelete-uniquemod \
+ tst-nodelete-zmod \
+ tst-unique3lib \
+ tst-unique3lib2 \
+ tst-unique4lib \
+
+modules-names += \
+ $(if $(CXX),$(modules-names-cxx)) \
+ $(modules-execstack-$(have-z-execstack)) \
+ $(tst-tls-many-dynamic-modules) \
+ $(tst-tls-many-dynamic-modules-dep) \
+ $(tst-tls-many-dynamic-modules-dep-bad) \
+ $(tlsmod17a-modules) \
+ $(tlsmod18a-modules) \
# Most modules build with _ISOMAC defined, but those filtered out
# depend on internal headers.

73
glibc-rh2040657-10.patch Normal file
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@ -0,0 +1,73 @@
commit 990c953bce06d77360d2e933faa9a008e2c55405
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 20:16:05 2022 +0100
x86: Add x86-64-vN check to early startup
This ISA level covers the glibc build itself. <dl-hwcap-check.h>
cannot be used because this check (by design) happens before
DL_PLATFORM_INIT and the x86 CPU flags initialization.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index 5ee06f94735e5189..36ca1a7126047b86 100644
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -7,6 +7,7 @@ sysdep_routines += get-cpuid-feature-leaf
sysdep-dl-routines += dl-get-cpu-features
sysdep_headers += sys/platform/x86.h bits/platform/x86.h
+CFLAGS-dl-get-cpu-features.os += $(rtld-early-cflags)
CFLAGS-get-cpuid-feature-leaf.o += $(no-stack-protector)
tests += tst-get-cpu-features tst-get-cpu-features-static \
diff --git a/sysdeps/x86/dl-get-cpu-features.c b/sysdeps/x86/dl-get-cpu-features.c
index 839803c746f408ed..6ccde4404b13a725 100644
--- a/sysdeps/x86/dl-get-cpu-features.c
+++ b/sysdeps/x86/dl-get-cpu-features.c
@@ -20,6 +20,7 @@
#ifdef SHARED
# include <cpu-features.c>
+# include <gcc-macros.h>
/* NB: Normally, DL_PLATFORM_INIT calls init_cpu_features to initialize
CPU features in dynamic executable. But when loading ld.so inside of
@@ -36,7 +37,35 @@ _dl_x86_init_cpu_features (void)
{
struct cpu_features *cpu_features = __get_cpu_features ();
if (cpu_features->basic.kind == arch_kind_unknown)
- init_cpu_features (cpu_features);
+ {
+ init_cpu_features (cpu_features);
+
+# if IS_IN (rtld)
+ /* See isa-level.c. */
+# if defined GCCMACRO__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 \
+ && defined HAVE_X86_LAHF_SAHF && defined GCCMACRO__POPCNT__ \
+ && defined GCCMACRO__SSE3__ && defined GCCMACRO__SSSE3__ \
+ && defined GCCMACRO__SSE4_1__ && defined GCCMACRO__SSE4_2__
+ if (!(cpu_features->isa_1 & GNU_PROPERTY_X86_ISA_1_V2))
+ _dl_fatal_printf ("\
+Fatal glibc error: CPU does not support x86-64-v%d\n", 2);
+# if defined GCCMACRO__AVX__ && defined GCCMACRO__AVX2__ \
+ && defined GCCMACRO__F16C__ && defined GCCMACRO__FMA__ \
+ && defined GCCMACRO__LZCNT__ && defined HAVE_X86_MOVBE
+ if (!(cpu_features->isa_1 & GNU_PROPERTY_X86_ISA_1_V3))
+ _dl_fatal_printf ("\
+Fatal glibc error: CPU does not support x86-64-v%d\n", 3);
+# if defined GCCMACRO__AVX512F__ && defined GCCMACRO__AVX512BW__ \
+ && defined GCCMACRO__AVX512CD__ && defined GCCMACRO__AVX512DQ__ \
+ && defined GCCMACRO__AVX512VL__
+ if (!(cpu_features->isa_1 & GNU_PROPERTY_X86_ISA_1_V4))
+ _dl_fatal_printf ("\
+Fatal glibc error: CPU does not support x86-64-v%d\n", 4);
+# endif /* ISA level 4 */
+# endif /* ISA level 3 */
+# endif /* ISA level 2 */
+# endif /* IS_IN (rtld) */
+ }
}
__ifunc (__x86_cpu_features, __x86_cpu_features, NULL, void,

37
glibc-rh2040657-11.patch Normal file
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@ -0,0 +1,37 @@
commit f01d482f0355a7029d0715ace0ccf3323e7e94bc
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 20:16:05 2022 +0100
s390x: Use <gcc-macros.h> in early HWCAP check
This is required so that the checks still work if $(early-cflags)
selects a different ISA level.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/sysdeps/s390/s390-64/dl-hwcap-check.h b/sysdeps/s390/s390-64/dl-hwcap-check.h
index 87e18be6bd0c512b..27f7e245b1d1a9e9 100644
--- a/sysdeps/s390/s390-64/dl-hwcap-check.h
+++ b/sysdeps/s390/s390-64/dl-hwcap-check.h
@@ -19,17 +19,18 @@
#ifndef _DL_HWCAP_CHECK_H
#define _DL_HWCAP_CHECK_H
+#include <gcc-macros.h>
#include <ldsodefs.h>
static inline void
dl_hwcap_check (void)
{
#if defined __ARCH__
-# if __ARCH__ >= 13
+# if GCCMACRO__ARCH__ >= 13
if (!(GLRO(dl_hwcap) & HWCAP_S390_VXRS_EXT2))
_dl_fatal_printf ("\
Fatal glibc error: CPU lacks VXRS_EXT2 support (z15 or later required)\n");
-# elif __ARCH__ >= 12
+# elif GCCMACRO__ARCH__ >= 12
if (!(GLRO(dl_hwcap) & HWCAP_S390_VXE))
_dl_fatal_printf ("\
Fatal glibc error: CPU lacks VXE support (z14 or later required)\n");

158
glibc-rh2040657-12.patch Normal file
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@ -0,0 +1,158 @@
commit c90363403b57b3b7919061851cb3e6d9c85e784a
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Jan 18 13:53:11 2022 +0100
elf: Move _dl_setup_hash to its own file
And compile it with the early CFLAGS. _dl_setup_hash is called
very early for the ld.so link map, so it should be compiled
differently.
Reviewed-by: Stefan Liebler <stli@linux.ibm.com>
Tested-by: Stefan Liebler <stli@linux.ibm.com>
diff --git a/elf/Makefile b/elf/Makefile
index 778e393395fc5248..948296dc2437e9a1 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -69,6 +69,7 @@ dl-routines = \
dl-reloc \
dl-runtime \
dl-scope \
+ dl-setup_hash \
dl-sort-maps \
dl-thread_gscope_wait \
dl-tls \
@@ -154,6 +155,7 @@ CFLAGS-.os += $(call elide-stack-protector,.os,$(all-rtld-routines))
# Add the requested compiler flags to the early startup code.
CFLAGS-dl-printf.os += $(rtld-early-cflags)
+CFLAGS-dl-setup_hash.os += $(rtld-early-cflags)
CFLAGS-dl-sysdep.os += $(rtld-early-cflags)
CFLAGS-dl-tunables.os += $(rtld-early-cflags)
CFLAGS-dl-write.os += $(rtld-early-cflags)
diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c
index eea217eb2833164c..3391a990c8d288e5 100644
--- a/elf/dl-lookup.c
+++ b/elf/dl-lookup.c
@@ -948,51 +948,6 @@ _dl_lookup_symbol_x (const char *undef_name, struct link_map *undef_map,
}
-/* Cache the location of MAP's hash table. */
-
-void
-_dl_setup_hash (struct link_map *map)
-{
- Elf_Symndx *hash;
-
- if (__glibc_likely (map->l_info[ELF_MACHINE_GNU_HASH_ADDRIDX] != NULL))
- {
- Elf32_Word *hash32
- = (void *) D_PTR (map, l_info[ELF_MACHINE_GNU_HASH_ADDRIDX]);
- map->l_nbuckets = *hash32++;
- Elf32_Word symbias = *hash32++;
- Elf32_Word bitmask_nwords = *hash32++;
- /* Must be a power of two. */
- assert ((bitmask_nwords & (bitmask_nwords - 1)) == 0);
- map->l_gnu_bitmask_idxbits = bitmask_nwords - 1;
- map->l_gnu_shift = *hash32++;
-
- map->l_gnu_bitmask = (ElfW(Addr) *) hash32;
- hash32 += __ELF_NATIVE_CLASS / 32 * bitmask_nwords;
-
- map->l_gnu_buckets = hash32;
- hash32 += map->l_nbuckets;
- map->l_gnu_chain_zero = hash32 - symbias;
-
- /* Initialize MIPS xhash translation table. */
- ELF_MACHINE_XHASH_SETUP (hash32, symbias, map);
-
- return;
- }
-
- if (!map->l_info[DT_HASH])
- return;
- hash = (void *) D_PTR (map, l_info[DT_HASH]);
-
- map->l_nbuckets = *hash++;
- /* Skip nchain. */
- hash++;
- map->l_buckets = hash;
- hash += map->l_nbuckets;
- map->l_chain = hash;
-}
-
-
static void
_dl_debug_bindings (const char *undef_name, struct link_map *undef_map,
const ElfW(Sym) **ref, struct sym_val *value,
diff --git a/elf/dl-setup_hash.c b/elf/dl-setup_hash.c
new file mode 100644
index 0000000000000000..6dd57c5c94e541c2
--- /dev/null
+++ b/elf/dl-setup_hash.c
@@ -0,0 +1,63 @@
+/* Cache the location of a link map hash table.
+ Copyright (C) 1995-2022 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <assert.h>
+#include <link.h>
+#include <ldsodefs.h>
+
+void
+_dl_setup_hash (struct link_map *map)
+{
+ Elf_Symndx *hash;
+
+ if (__glibc_likely (map->l_info[ELF_MACHINE_GNU_HASH_ADDRIDX] != NULL))
+ {
+ Elf32_Word *hash32
+ = (void *) D_PTR (map, l_info[ELF_MACHINE_GNU_HASH_ADDRIDX]);
+ map->l_nbuckets = *hash32++;
+ Elf32_Word symbias = *hash32++;
+ Elf32_Word bitmask_nwords = *hash32++;
+ /* Must be a power of two. */
+ assert ((bitmask_nwords & (bitmask_nwords - 1)) == 0);
+ map->l_gnu_bitmask_idxbits = bitmask_nwords - 1;
+ map->l_gnu_shift = *hash32++;
+
+ map->l_gnu_bitmask = (ElfW(Addr) *) hash32;
+ hash32 += __ELF_NATIVE_CLASS / 32 * bitmask_nwords;
+
+ map->l_gnu_buckets = hash32;
+ hash32 += map->l_nbuckets;
+ map->l_gnu_chain_zero = hash32 - symbias;
+
+ /* Initialize MIPS xhash translation table. */
+ ELF_MACHINE_XHASH_SETUP (hash32, symbias, map);
+
+ return;
+ }
+
+ if (!map->l_info[DT_HASH])
+ return;
+ hash = (void *) D_PTR (map, l_info[DT_HASH]);
+
+ map->l_nbuckets = *hash++;
+ /* Skip nchain. */
+ hash++;
+ map->l_buckets = hash;
+ hash += map->l_nbuckets;
+ map->l_chain = hash;
+}

42
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@ -0,0 +1,42 @@
commit f4f70c2895e3d325188a42c10eb7bb4335be6773
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Jan 4 06:58:34 2022 -0800
elf: Add a comment after trailing backslashes
diff --git a/elf/Makefile b/elf/Makefile
index 0cfcf0a61a442c9f..5b9c36bc6f0a3ee5 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -319,6 +319,7 @@ tests-cxx = \
tst-nodelete \
tst-unique3 \
tst-unique4 \
+# tests-cxx
tests += $(if $(CXX),$(tests-cxx))
tests-internal += loadtest unload unload2 circleload1 \
@@ -583,6 +584,7 @@ modules-names = \
vismod1 \
vismod2 \
vismod3 \
+# modules-names
modules-names-cxx = \
tst-dlopen-nodelete-reloc-mod1 \
@@ -608,6 +610,7 @@ modules-names-cxx = \
tst-unique3lib \
tst-unique3lib2 \
tst-unique4lib \
+# modules-names-cxx
modules-names += \
$(if $(CXX),$(modules-names-cxx)) \
@@ -617,6 +620,7 @@ modules-names += \
$(tst-tls-many-dynamic-modules-dep-bad) \
$(tlsmod17a-modules) \
$(tlsmod18a-modules) \
+# modules-names
# Most modules build with _ISOMAC defined, but those filtered out
# depend on internal headers.

171
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@ -0,0 +1,171 @@
commit 0835c0f0bad351117154b815f34f8af19ea7e325
Author: Matt Whitlock <sourceware@mattwhitlock.name>
Date: Wed Jun 16 23:40:47 2021 -0400
x86: fix Autoconf caching of instruction support checks [BZ #27991]
The Autoconf documentation for the AC_CACHE_CHECK macro states:
The commands-to-set-it must have no side effects except for setting
the variable cache-id, see below.
However, the tests for support of -msahf and -mmovbe were embedded in
the commands-to-set-it for lib_cv_include_x86_isa_level. This had the
consequence that libc_cv_have_x86_lahf_sahf and libc_cv_have_x86_movbe
were not defined whenever lib_cv_include_x86_isa_level was read from
cache. These variables' being undefined meant that their unquoted use
in later test expressions led to the 'test' built-in's misparsing its
arguments and emitting errors like "test: =: unexpected operator" or
"test: =: unary operator expected", depending on the particular shell.
This commit refactors the tests for LAHF/SAHF and MOVBE instruction
support into their own AC_CACHE_CHECK macro invocations to obey the
rule that the commands-to-set-it must have no side effects other than
setting the variable named by cache-id.
Signed-off-by: Matt Whitlock <sourceware@mattwhitlock.name>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
diff --git a/sysdeps/x86/configure b/sysdeps/x86/configure
index ead1295c38cf5f4e..62676bb686850938 100644
--- a/sysdeps/x86/configure
+++ b/sysdeps/x86/configure
@@ -126,8 +126,6 @@ cat > conftest2.S <<EOF
4:
EOF
libc_cv_include_x86_isa_level=no
-libc_cv_have_x86_lahf_sahf=no
-libc_cv_have_x86_movbe=no
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -nostartfiles -nostdlib -r -o conftest conftest1.S conftest2.S'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
@@ -137,9 +135,22 @@ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -nostartfiles -nostdlib -r -o conftest c
count=`LC_ALL=C $READELF -n conftest | grep NT_GNU_PROPERTY_TYPE_0 | wc -l`
if test "$count" = 1; then
libc_cv_include_x86_isa_level=yes
- cat > conftest.c <<EOF
-EOF
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - conftest.c'
+ fi
+fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_include_x86_isa_level" >&5
+$as_echo "$libc_cv_include_x86_isa_level" >&6; }
+if test $libc_cv_include_x86_isa_level = yes; then
+ $as_echo "#define INCLUDE_X86_ISA_LEVEL 1" >>confdefs.h
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LAHF/SAHF instruction support" >&5
+$as_echo_n "checking for LAHF/SAHF instruction support... " >&6; }
+if ${libc_cv_have_x86_lahf_sahf+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ libc_cv_have_x86_lahf_sahf=no
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
@@ -147,7 +158,20 @@ EOF
test $ac_status = 0; }; } | grep -q "\-msahf"; then
libc_cv_have_x86_lahf_sahf=yes
fi
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - conftest.c'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_x86_lahf_sahf" >&5
+$as_echo "$libc_cv_have_x86_lahf_sahf" >&6; }
+ if test $libc_cv_have_x86_lahf_sahf = yes; then
+ $as_echo "#define HAVE_X86_LAHF_SAHF 1" >>confdefs.h
+
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for MOVBE instruction support" >&5
+$as_echo_n "checking for MOVBE instruction support... " >&6; }
+if ${libc_cv_have_x86_movbe+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ libc_cv_have_x86_movbe=no
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
@@ -155,23 +179,13 @@ EOF
test $ac_status = 0; }; } | grep -q "\-mmovbe"; then
libc_cv_have_x86_movbe=yes
fi
- fi
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_include_x86_isa_level" >&5
-$as_echo "$libc_cv_include_x86_isa_level" >&6; }
-if test $libc_cv_include_x86_isa_level = yes; then
- $as_echo "#define INCLUDE_X86_ISA_LEVEL 1" >>confdefs.h
-
fi
-if test $libc_cv_have_x86_lahf_sahf = yes; then
- $as_echo "#define HAVE_X86_LAHF_SAHF 1" >>confdefs.h
-
-fi
-if test $libc_cv_have_x86_movbe = yes; then
- $as_echo "#define HAVE_X86_MOVBE 1" >>confdefs.h
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_x86_movbe" >&5
+$as_echo "$libc_cv_have_x86_movbe" >&6; }
+ if test $libc_cv_have_x86_movbe = yes; then
+ $as_echo "#define HAVE_X86_MOVBE 1" >>confdefs.h
+ fi
fi
config_vars="$config_vars
enable-x86-isa-level = $libc_cv_include_x86_isa_level"
diff --git a/sysdeps/x86/configure.ac b/sysdeps/x86/configure.ac
index bca97fdc2f1ac1a7..04a12ab68048cd66 100644
--- a/sysdeps/x86/configure.ac
+++ b/sysdeps/x86/configure.ac
@@ -98,30 +98,32 @@ cat > conftest2.S <<EOF
4:
EOF
libc_cv_include_x86_isa_level=no
-libc_cv_have_x86_lahf_sahf=no
-libc_cv_have_x86_movbe=no
if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -nostartfiles -nostdlib -r -o conftest conftest1.S conftest2.S); then
count=`LC_ALL=C $READELF -n conftest | grep NT_GNU_PROPERTY_TYPE_0 | wc -l`
if test "$count" = 1; then
libc_cv_include_x86_isa_level=yes
- cat > conftest.c <<EOF
-EOF
- if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - conftest.c) | grep -q "\-msahf"; then
- libc_cv_have_x86_lahf_sahf=yes
- fi
- if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - conftest.c) | grep -q "\-mmovbe"; then
- libc_cv_have_x86_movbe=yes
- fi
fi
fi
rm -f conftest*])
if test $libc_cv_include_x86_isa_level = yes; then
AC_DEFINE(INCLUDE_X86_ISA_LEVEL)
-fi
-if test $libc_cv_have_x86_lahf_sahf = yes; then
- AC_DEFINE(HAVE_X86_LAHF_SAHF)
-fi
-if test $libc_cv_have_x86_movbe = yes; then
- AC_DEFINE(HAVE_X86_MOVBE)
+ AC_CACHE_CHECK([for LAHF/SAHF instruction support],
+ libc_cv_have_x86_lahf_sahf, [dnl
+ libc_cv_have_x86_lahf_sahf=no
+ if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null) | grep -q "\-msahf"; then
+ libc_cv_have_x86_lahf_sahf=yes
+ fi])
+ if test $libc_cv_have_x86_lahf_sahf = yes; then
+ AC_DEFINE(HAVE_X86_LAHF_SAHF)
+ fi
+ AC_CACHE_CHECK([for MOVBE instruction support],
+ libc_cv_have_x86_movbe, [dnl
+ libc_cv_have_x86_movbe=no
+ if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null) | grep -q "\-mmovbe"; then
+ libc_cv_have_x86_movbe=yes
+ fi])
+ if test $libc_cv_have_x86_movbe = yes; then
+ AC_DEFINE(HAVE_X86_MOVBE)
+ fi
fi
LIBC_CONFIG_VAR([enable-x86-isa-level], [$libc_cv_include_x86_isa_level])

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@ -0,0 +1,58 @@
commit 5732a881aad24fac876f5505a212395048a7a483
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 16:09:20 2022 +0100
x86: HAVE_X86_LAHF_SAHF, HAVE_X86_MOVBE and -march=x86-64-vN (bug 28782)
HAVE_X86_LAHF_SAHF is implied by x86-64-v2, and HAVE_X86_MOVBE by
x86-64-v3.
The individual flag does not appear in -fverbose-asm flag output
even if the ISA level implies it.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
diff --git a/sysdeps/x86/configure b/sysdeps/x86/configure
index 62676bb686850938..7bdbfdc6dc2ad38f 100644
--- a/sysdeps/x86/configure
+++ b/sysdeps/x86/configure
@@ -155,7 +155,7 @@ else
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; } | grep -q "\-msahf"; then
+ test $ac_status = 0; }; } | grep -qE '(-msahf\b|-march=x86-64-v)'; then
libc_cv_have_x86_lahf_sahf=yes
fi
fi
@@ -176,7 +176,7 @@ else
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; } | grep -q "\-mmovbe"; then
+ test $ac_status = 0; }; } | grep -qE '(-mmovbe\b|-march=x86-64-v([3-9]|[1-9][0-9]))'; then
libc_cv_have_x86_movbe=yes
fi
fi
diff --git a/sysdeps/x86/configure.ac b/sysdeps/x86/configure.ac
index 04a12ab68048cd66..10d5c2e0e555fc79 100644
--- a/sysdeps/x86/configure.ac
+++ b/sysdeps/x86/configure.ac
@@ -110,7 +110,7 @@ if test $libc_cv_include_x86_isa_level = yes; then
AC_CACHE_CHECK([for LAHF/SAHF instruction support],
libc_cv_have_x86_lahf_sahf, [dnl
libc_cv_have_x86_lahf_sahf=no
- if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null) | grep -q "\-msahf"; then
+ if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null) | grep -qE '(-msahf\b|-march=x86-64-v)'; then
libc_cv_have_x86_lahf_sahf=yes
fi])
if test $libc_cv_have_x86_lahf_sahf = yes; then
@@ -119,7 +119,7 @@ if test $libc_cv_include_x86_isa_level = yes; then
AC_CACHE_CHECK([for MOVBE instruction support],
libc_cv_have_x86_movbe, [dnl
libc_cv_have_x86_movbe=no
- if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null) | grep -q "\-mmovbe"; then
+ if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null) | grep -qE '(-mmovbe\b|-march=x86-64-v(@<:@3-9@:>@|@<:@1-9@:>@@<:@0-9@:>@))'; then
libc_cv_have_x86_movbe=yes
fi])
if test $libc_cv_have_x86_movbe = yes; then

32
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@ -0,0 +1,32 @@
commit ef7c6d42fe163a5e49a478c43e655ce4633fa5ba
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 16:09:20 2022 +0100
Generate gcc-macros.h
The file can be used to check the effect of the default compiler
flags on code generation even in areas of the build that uses
non-default compiler flags.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
diff --git a/Makeconfig b/Makeconfig
index 8bc5540292c7b6fa..99898a632a64be91 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -1202,6 +1202,15 @@ $(common-objpfx)dl-tunable-list.stmp: \
touch $@
endif
+# Dump the GCC macros used by the default compiler flags to a header
+# file, so that they can be inspected when using different compiler
+# flags. Add the GCCMACRO prefix to make these macro names unique.
+$(common-objpfx)gcc-macros.h.in: $(common-objpfx)config.status
+ $(CC) $(CFLAGS) $(CPPFLAGS) -E -dM -x c -o $@ /dev/null
+$(common-objpfx)gcc-macros.h: $(common-objpfx)gcc-macros.h.in
+ sed 's/^#define /#define GCCMACRO/' < $< > $@
+before-compile += $(common-objpfx)gcc-macros.h
+
# Generate version maps, but wait until sysdep-subdirs is known
ifeq ($(sysd-sorted-done),t)
ifeq ($(build-shared),yes)

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@ -0,0 +1,549 @@
commit 7de01e60c200c431d3469deb784da8fd4508fc15
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 20:16:05 2022 +0100
elf/Makefile: Reflow and sort most variable assignments
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Conflicts:
elf/Makefile
(Usual backporting differences. LLD support is missing
downstream.)
diff --git a/elf/Makefile b/elf/Makefile
index 5b9c36bc6f0a3ee5..124905f96c88ab53 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -21,21 +21,62 @@ subdir := elf
include ../Makeconfig
-headers = elf.h bits/elfclass.h link.h bits/link.h
-routines = $(all-dl-routines) dl-support dl-iteratephdr \
- dl-addr dl-addr-obj enbl-secure dl-profstub \
- dl-origin dl-libc dl-sym dl-sysdep dl-error \
- dl-reloc-static-pie libc_early_init rtld_static_init
+headers = \
+ bits/elfclass.h \
+ bits/link.h \
+ elf.h \
+ link.h \
+ # headers
+
+routines = \
+ $(all-dl-routines) \
+ dl-addr \
+ dl-addr-obj \
+ dl-error \
+ dl-iteratephdr \
+ dl-libc \
+ dl-origin \
+ dl-profstub \
+ dl-reloc-static-pie \
+ dl-support \
+ dl-sym \
+ dl-sysdep \
+ enbl-secure \
+ libc_early_init \
+ rtld_static_init \
+ # routines
# The core dynamic linking functions are in libc for the static and
# profiled libraries.
-dl-routines = $(addprefix dl-,load lookup object reloc deps \
- runtime init fini debug misc \
- version profile tls origin scope \
- execstack open close trampoline \
- exception sort-maps lookup-direct \
- call-libc-early-init write \
- thread_gscope_wait tls_init_tp)
+dl-routines = \
+ dl-call-libc-early-init \
+ dl-close \
+ dl-debug \
+ dl-deps \
+ dl-exception \
+ dl-execstack \
+ dl-fini \
+ dl-init \
+ dl-load \
+ dl-lookup \
+ dl-lookup-direct \
+ dl-misc \
+ dl-object \
+ dl-open \
+ dl-origin \
+ dl-profile \
+ dl-reloc \
+ dl-runtime \
+ dl-scope \
+ dl-sort-maps \
+ dl-thread_gscope_wait \
+ dl-tls \
+ dl-tls_init_tp \
+ dl-trampoline \
+ dl-version \
+ dl-write \
+ # dl-routines
+
ifeq (yes,$(use-ldconfig))
dl-routines += dl-cache
endif
@@ -58,16 +99,38 @@ endif
all-dl-routines = $(dl-routines) $(sysdep-dl-routines)
# But they are absent from the shared libc, because that code is in ld.so.
-elide-routines.os = $(all-dl-routines) dl-support enbl-secure dl-origin \
- dl-sysdep dl-exception dl-reloc-static-pie \
- thread_gscope_wait rtld_static_init
+elide-routines.os = \
+ $(all-dl-routines) \
+ dl-exception \
+ dl-origin \
+ dl-reloc-static-pie \
+ dl-support \
+ dl-sysdep \
+ enbl-secure \
+ rtld_static_init \
+ thread_gscope_wait \
+ # elide-routines.os
# ld.so uses those routines, plus some special stuff for being the program
# interpreter and operating independent of libc.
-rtld-routines = rtld $(all-dl-routines) dl-sysdep dl-environ dl-minimal \
- dl-error-minimal dl-conflict dl-hwcaps dl-hwcaps_split dl-hwcaps-subdirs \
- dl-usage dl-diagnostics dl-diagnostics-kernel dl-diagnostics-cpu \
- dl-mutex
+rtld-routines = \
+ $(all-dl-routines) \
+ dl-conflict \
+ dl-diagnostics \
+ dl-diagnostics-cpu \
+ dl-diagnostics-kernel \
+ dl-environ \
+ dl-error-minimal \
+ dl-hwcaps \
+ dl-hwcaps-subdirs \
+ dl-hwcaps_split \
+ dl-minimal \
+ dl-mutex \
+ dl-sysdep \
+ dl-usage \
+ rtld \
+ # rtld-routines
+
all-rtld-routines = $(rtld-routines) $(sysdep-rtld-routines)
CFLAGS-dl-runtime.c += -fexceptions -fasynchronous-unwind-tables
@@ -102,8 +165,16 @@ ld-map = $(common-objpfx)ld.map
endif
ifeq (yes,$(build-shared))
-extra-objs = $(all-rtld-routines:%=%.os) sofini.os interp.os
-generated += librtld.os dl-allobjs.os ld.so ldd
+extra-objs = \
+ $(all-rtld-routines:%=%.os) \
+ sofini.os \
+ interp.os \
+ # extra-objs
+generated += \
+ dl-allobjs.os \
+ ld.so ldd \
+ librtld.os \
+ # generated
install-others = $(inst_rtlddir)/$(rtld-installed-name) $(inst_bindir)/ld.so
install-bin-script = ldd
endif
@@ -121,8 +192,15 @@ others-static += ldconfig
others += ldconfig
install-rootsbin += ldconfig
-ldconfig-modules := cache readlib xmalloc xstrdup chroot_canon static-stubs \
- stringtable
+ldconfig-modules := \
+ cache \
+ chroot_canon \
+ readlib \
+ static-stubs \
+ stringtable \
+ xmalloc \
+ xstrdup \
+ # ldconfig-modules
extra-objs += $(ldconfig-modules:=.o)
others-extras = $(ldconfig-modules)
endif
@@ -156,23 +234,36 @@ $(inst_auditdir)/sotruss-lib.so: $(objpfx)sotruss-lib.so $(+force)
$(do-install-program)
endif
-tests-static-normal := tst-array1-static tst-array5-static \
- tst-dl-iter-static \
- tst-tlsalign-static tst-tlsalign-extern-static \
- tst-linkall-static tst-env-setuid tst-env-setuid-tunables \
- tst-single_threaded-static tst-single_threaded-pthread-static \
- tst-dst-static tst-getauxval-static
-
-tests-static-internal := tst-tls1-static tst-tls2-static \
- tst-ptrguard1-static tst-stackguard1-static \
- tst-tls1-static-non-pie
+tests-static-normal := \
+ tst-array1-static \
+ tst-array5-static \
+ tst-dl-iter-static \
+ tst-dst-static \
+ tst-env-setuid \
+ tst-env-setuid-tunables \
+ tst-getauxval-static \
+ tst-linkall-static \
+ tst-single_threaded-pthread-static \
+ tst-single_threaded-static \
+ tst-tlsalign-extern-static \
+ tst-tlsalign-static \
+ # tests-static-normal
+
+tests-static-internal := \
+ tst-ptrguard1-static \
+ tst-stackguard1-static \
+ tst-tls1-static \
+ tst-tls2-static \
+ tst-tls1-static-non-pie \
+ # tests-static-internal
CRT-tst-tls1-static-non-pie := $(csu-objpfx)crt1.o
tst-tls1-static-non-pie-no-pie = yes
tests-container := \
- tst-ldconfig-bad-aux-cache \
- tst-ldconfig-ld_so_conf-update
+ tst-ldconfig-bad-aux-cache \
+ tst-ldconfig-ld_so_conf-update \
+ # tests-container
ifeq (no,$(build-hardcoded-path-in-tests))
# This is an ld.so.cache test, and RPATH/RUNPATH in the executable
@@ -180,14 +271,32 @@ ifeq (no,$(build-hardcoded-path-in-tests))
tests-container += tst-glibc-hwcaps-prepend-cache
endif
-tests := tst-tls9 tst-leaks1 \
- tst-array1 tst-array2 tst-array3 tst-array4 tst-array5 \
- tst-auxv tst-stringtable
-tests-internal := tst-tls1 tst-tls2 $(tests-static-internal)
+tests := \
+ tst-array1 \
+ tst-array2 \
+ tst-array3 \
+ tst-array4 \
+ tst-array5 \
+ tst-auxv \
+ tst-leaks1 \
+ tst-stringtable \
+ tst-tls9 \
+ # tests
+
+tests-internal := \
+ $(tests-static-internal) \
+ tst-tls1 \
+ tst-tls2 \
+ # tests-internal
+
tests-static := $(tests-static-normal) $(tests-static-internal)
ifeq (yes,$(build-shared))
-tests-static += tst-tls9-static tst-single_threaded-static-dlopen
+tests-static += \
+ tst-single_threaded-static-dlopen \
+ tst-tls9-static \
+ # tests-static
+
static-dlopen-environment = \
LD_LIBRARY_PATH=$(ld-library-path):$(common-objpfx)dlfcn
tst-tls9-static-ENV = $(static-dlopen-environment)
@@ -313,33 +422,69 @@ tests += \
unload6 \
unload7 \
unload8 \
-# reldep9
+ # tests
tests-cxx = \
tst-dlopen-nodelete-reloc \
tst-nodelete \
tst-unique3 \
tst-unique4 \
-# tests-cxx
+ # tests-cxx
tests += $(if $(CXX),$(tests-cxx))
-tests-internal += loadtest unload unload2 circleload1 \
- neededtest neededtest2 neededtest3 neededtest4 \
- tst-tls3 tst-tls6 tst-tls7 tst-tls8 tst-dlmopen2 \
- tst-ptrguard1 tst-stackguard1 \
- tst-create_format1 tst-tls-surplus tst-dl-hwcaps_split
-tests-container += tst-pldd tst-dlopen-tlsmodid-container \
- tst-dlopen-self-container tst-preload-pthread-libc
-test-srcs = tst-pathopt
+
+tests-internal += \
+ circleload1 \
+ loadtest \
+ neededtest \
+ neededtest2 \
+ neededtest3 \
+ neededtest4 \
+ tst-create_format1 \
+ tst-dl-hwcaps_split \
+ tst-dlmopen2 \
+ tst-ptrguard1 \
+ tst-stackguard1 \
+ tst-tls-surplus \
+ tst-tls3 \
+ tst-tls6 \
+ tst-tls7 \
+ tst-tls8 \
+ unload \
+ unload2 \
+ # tests-internal
+
+tests-container += \
+ tst-dlopen-self-container \
+ tst-dlopen-tlsmodid-container \
+ tst-pldd \
+ tst-preload-pthread-libc \
+ # tests-container
+
+test-srcs = \
+ tst-pathopt \
+ # tests-srcs
+
+ifeq (yes,$(have-fpie))
+tests-pie += tst-align3
+endif
selinux-enabled := $(shell cat /selinux/enforce 2> /dev/null)
+
ifneq ($(selinux-enabled),1)
-tests-execstack-yes = tst-execstack tst-execstack-needed tst-execstack-prog
+tests-execstack-yes = \
+ tst-execstack \
+ tst-execstack-needed \
+ tst-execstack-prog \
+ # tests-execstack-yes
endif
endif
tests += $(tests-execstack-$(have-z-execstack))
ifeq ($(run-built-tests),yes)
-tests-special += $(objpfx)tst-leaks1-mem.out \
- $(objpfx)noload-mem.out \
- $(objpfx)tst-ldconfig-X.out $(objpfx)tst-rtld-help.out
+tests-special += \
+ $(objpfx)noload-mem.out \
+ $(objpfx)tst-ldconfig-X.out \
+ $(objpfx)tst-leaks1-mem.out \
+ $(objpfx)tst-rtld-help.out \
+ # tests-special
endif
tlsmod17a-suffixes = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
tlsmod18a-suffixes = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
@@ -356,9 +501,16 @@ tst-tls-many-dynamic-modules-dep = \
tst-tls-many-dynamic-modules-dep-bad-suffixes = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
tst-tls-many-dynamic-modules-dep-bad = \
$(foreach n,$(tst-tls-many-dynamic-modules-dep-bad-suffixes),tst-tls-manydynamic$(n)mod-dep-bad)
-extra-test-objs += $(tlsmod17a-modules:=.os) $(tlsmod18a-modules:=.os) \
- tst-tlsalign-vars.o
-test-extras += tst-tlsmod17a tst-tlsmod18a tst-tlsalign-vars
+extra-test-objs += \
+ $(tlsmod17a-modules:=.os) \
+ $(tlsmod18a-modules:=.os) \
+ tst-tlsalign-vars.o \
+ # extra-test-objs
+test-extras += \
+ tst-tlsalign-vars \
+ tst-tlsmod17a \
+ tst-tlsmod18a \
+ # test-extras
modules-names = \
circlemod1 \
circlemod1a \
@@ -610,17 +762,17 @@ modules-names-cxx = \
tst-unique3lib \
tst-unique3lib2 \
tst-unique4lib \
-# modules-names-cxx
+ # modules-names-cxx
modules-names += \
$(if $(CXX),$(modules-names-cxx)) \
$(modules-execstack-$(have-z-execstack)) \
+ $(tlsmod17a-modules) \
+ $(tlsmod18a-modules) \
$(tst-tls-many-dynamic-modules) \
$(tst-tls-many-dynamic-modules-dep) \
$(tst-tls-many-dynamic-modules-dep-bad) \
- $(tlsmod17a-modules) \
- $(tlsmod18a-modules) \
-# modules-names
+ # modules-names
# Most modules build with _ISOMAC defined, but those filtered out
# depend on internal headers.
@@ -669,35 +821,70 @@ modules-names-nobuild := filtmod1 tst-big-note-lib tst-ro-dynamic-mod
tests += $(tests-static)
ifeq (yes,$(have-ifunc))
-tests-ifuncstatic := ifuncmain1static ifuncmain1picstatic \
- ifuncmain2static ifuncmain2picstatic \
- ifuncmain4static ifuncmain4picstatic \
- ifuncmain5static ifuncmain5picstatic \
- ifuncmain7static ifuncmain7picstatic
+tests-ifuncstatic := \
+ ifuncmain1static \
+ ifuncmain1picstatic \
+ ifuncmain2static \
+ ifuncmain2picstatic \
+ ifuncmain4static \
+ ifuncmain4picstatic \
+ ifuncmain5static \
+ ifuncmain5picstatic \
+ ifuncmain7static \
+ ifuncmain7picstatic \
+ # tests-ifuncstatic
ifeq (yes,$(have-gcc-ifunc))
tests-ifuncstatic += ifuncmain9static ifuncmain9picstatic
endif
tests-static += $(tests-ifuncstatic)
tests-internal += $(tests-ifuncstatic)
ifeq (yes,$(build-shared))
-tests += tst-ifunc-fault-lazy tst-ifunc-fault-bindnow
+tests += \
+ tst-ifunc-fault-bindnow \
+ tst-ifunc-fault-lazy \
+ # tests
# Note: sysdeps/x86_64/ifuncmain8.c uses ifuncmain8.
tests-internal += \
- ifuncmain1 ifuncmain1pic ifuncmain1vis ifuncmain1vispic \
- ifuncmain1staticpic \
- ifuncmain2 ifuncmain2pic ifuncmain3 ifuncmain4 \
- ifuncmain5 ifuncmain5pic ifuncmain5staticpic \
- ifuncmain7 ifuncmain7pic
+ ifuncmain1 \
+ ifuncmain1pic \
+ ifuncmain1staticpic \
+ ifuncmain1vis \
+ ifuncmain1vispic \
+ ifuncmain2 \
+ ifuncmain2pic \
+ ifuncmain3 \
+ ifuncmain4 \
+ ifuncmain5 \
+ ifuncmain5pic \
+ ifuncmain5staticpic \
+ ifuncmain7 \
+ ifuncmain7pic \
+ # tests-internal
ifeq (yes,$(have-gcc-ifunc))
-tests-internal += ifuncmain9 ifuncmain9pic
+tests-internal += \
+ ifuncmain9 \
+ ifuncmain9pic \
+ # tests-internal
endif
-ifunc-test-modules = ifuncdep1 ifuncdep1pic ifuncdep2 ifuncdep2pic \
- ifuncdep5 ifuncdep5pic
+ifunc-test-modules = \
+ ifuncdep1 \
+ ifuncdep1pic \
+ ifuncdep2 \
+ ifuncdep2pic \
+ ifuncdep5 \
+ ifuncdep5pic \
+ # ifunc-test-modules
extra-test-objs += $(ifunc-test-modules:=.o)
test-internal-extras += $(ifunc-test-modules)
ifeq (yes,$(have-fpie))
-ifunc-pie-tests = ifuncmain1pie ifuncmain1vispie ifuncmain1staticpie \
- ifuncmain5pie ifuncmain6pie ifuncmain7pie
+ifunc-pie-tests = \
+ ifuncmain1pie \
+ ifuncmain1staticpie \
+ ifuncmain1vispie \
+ ifuncmain5pie \
+ ifuncmain6pie \
+ ifuncmain7pie \
+ # ifunc-pie-tests
ifeq (yes,$(have-gcc-ifunc))
ifunc-pie-tests += ifuncmain9pie
endif
@@ -707,30 +894,50 @@ endif
tests-internal += $(ifunc-pie-tests)
tests-pie += $(ifunc-pie-tests)
endif
-modules-names += ifuncmod1 ifuncmod3 ifuncmod5 ifuncmod6
+modules-names += \
+ ifuncmod1 \
+ ifuncmod3 \
+ ifuncmod5 \
+ ifuncmod6 \
+ # module-names
endif
endif
ifeq (yes,$(build-shared))
ifeq ($(run-built-tests),yes)
-tests-special += $(objpfx)tst-pathopt.out $(objpfx)tst-rtld-load-self.out \
- $(objpfx)tst-rtld-preload.out $(objpfx)argv0test.out \
- $(objpfx)tst-rtld-help.out
+tests-special += \
+ $(objpfx)argv0test.out \
+ $(objpfx)tst-pathopt.out \
+ $(objpfx)tst-rtld-help.out \
+ $(objpfx)tst-rtld-load-self.out \
+ $(objpfx)tst-rtld-preload.out \
+ # tests-special
endif
-tests-special += $(objpfx)check-textrel.out $(objpfx)check-execstack.out \
- $(objpfx)check-wx-segment.out \
- $(objpfx)check-localplt.out $(objpfx)check-initfini.out
+tests-special += \
+ $(objpfx)check-execstack.out \
+ $(objpfx)check-initfini.out \
+ $(objpfx)check-localplt.out \
+ $(objpfx)check-textrel.out \
+ $(objpfx)check-wx-segment.out \
+ # tests-special
endif
ifeq ($(run-built-tests),yes)
-tests-special += $(objpfx)order-cmp.out $(objpfx)tst-array1-cmp.out \
- $(objpfx)tst-array1-static-cmp.out \
- $(objpfx)tst-array2-cmp.out $(objpfx)tst-array3-cmp.out \
- $(objpfx)tst-array4-cmp.out $(objpfx)tst-array5-cmp.out \
- $(objpfx)tst-array5-static-cmp.out $(objpfx)order2-cmp.out \
- $(objpfx)tst-initorder-cmp.out \
- $(objpfx)tst-initorder2-cmp.out $(objpfx)tst-unused-dep.out \
- $(objpfx)tst-unused-dep-cmp.out
+tests-special += \
+ $(objpfx)order-cmp.out \
+ $(objpfx)order2-cmp.out \
+ $(objpfx)tst-array1-cmp.out \
+ $(objpfx)tst-array1-static-cmp.out \
+ $(objpfx)tst-array2-cmp.out \
+ $(objpfx)tst-array3-cmp.out \
+ $(objpfx)tst-array4-cmp.out \
+ $(objpfx)tst-array5-cmp.out \
+ $(objpfx)tst-array5-static-cmp.out \
+ $(objpfx)tst-initorder-cmp.out \
+ $(objpfx)tst-initorder2-cmp.out \
+ $(objpfx)tst-unused-dep-cmp.out \
+ $(objpfx)tst-unused-dep.out \
+ # tests-special
endif
ifndef avoid-generated
@@ -835,6 +1042,7 @@ rtld-stubbed-symbols = \
free \
malloc \
realloc \
+ # rtld-stubbed-symbols
ifeq ($(have-ssp),yes)
# rtld is not built with the stack protector, so these references will

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@ -0,0 +1,633 @@
commit b693d75f0c611bce9b0ad984bad306121d42c535
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 20:16:05 2022 +0100
elf: Split dl-printf.c from dl-misc.c
This allows to use different compiler flags for the diagnostics
code.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
diff --git a/elf/Makefile b/elf/Makefile
index 124905f96c88ab53..52aafc89cec835ab 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -64,6 +64,7 @@ dl-routines = \
dl-object \
dl-open \
dl-origin \
+ dl-printf \
dl-profile \
dl-reloc \
dl-runtime \
diff --git a/elf/dl-misc.c b/elf/dl-misc.c
index b256d792c6198683..f17140b129343f7b 100644
--- a/elf/dl-misc.c
+++ b/elf/dl-misc.c
@@ -16,24 +16,16 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <assert.h>
+#include <_itoa.h>
#include <fcntl.h>
#include <ldsodefs.h>
-#include <limits.h>
#include <link.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
+#include <not-cancel.h>
#include <stdint.h>
+#include <stdlib.h>
#include <sys/mman.h>
-#include <sys/param.h>
#include <sys/stat.h>
-#include <sys/uio.h>
-#include <sysdep.h>
-#include <_itoa.h>
-#include <dl-writev.h>
-#include <not-cancel.h>
+#include <unistd.h>
/* Read the whole contents of FILE into new mmap'd space with given
protections. *SIZEP gets the size of the file. On error MAP_FAILED
@@ -70,270 +62,6 @@ _dl_sysdep_read_whole_file (const char *file, size_t *sizep, int prot)
return result;
}
-
-/* Bare-bones printf implementation. This function only knows about
- the formats and flags needed and can handle only up to 64 stripes in
- the output. */
-static void
-_dl_debug_vdprintf (int fd, int tag_p, const char *fmt, va_list arg)
-{
-# define NIOVMAX 64
- struct iovec iov[NIOVMAX];
- int niov = 0;
- pid_t pid = 0;
- char pidbuf[12];
-
- while (*fmt != '\0')
- {
- const char *startp = fmt;
-
- if (tag_p > 0)
- {
- /* Generate the tag line once. It consists of the PID and a
- colon followed by a tab. */
- if (pid == 0)
- {
- char *p;
- pid = __getpid ();
- assert (pid >= 0 && sizeof (pid_t) <= 4);
- p = _itoa (pid, &pidbuf[10], 10, 0);
- while (p > pidbuf)
- *--p = ' ';
- pidbuf[10] = ':';
- pidbuf[11] = '\t';
- }
-
- /* Append to the output. */
- assert (niov < NIOVMAX);
- iov[niov].iov_len = 12;
- iov[niov++].iov_base = pidbuf;
-
- /* No more tags until we see the next newline. */
- tag_p = -1;
- }
-
- /* Skip everything except % and \n (if tags are needed). */
- while (*fmt != '\0' && *fmt != '%' && (! tag_p || *fmt != '\n'))
- ++fmt;
-
- /* Append constant string. */
- assert (niov < NIOVMAX);
- if ((iov[niov].iov_len = fmt - startp) != 0)
- iov[niov++].iov_base = (char *) startp;
-
- if (*fmt == '%')
- {
- /* It is a format specifier. */
- char fill = ' ';
- int width = -1;
- int prec = -1;
-#if LONG_MAX != INT_MAX
- int long_mod = 0;
-#endif
-
- /* Recognize zero-digit fill flag. */
- if (*++fmt == '0')
- {
- fill = '0';
- ++fmt;
- }
-
- /* See whether with comes from a parameter. Note that no other
- way to specify the width is implemented. */
- if (*fmt == '*')
- {
- width = va_arg (arg, int);
- ++fmt;
- }
-
- /* Handle precision. */
- if (*fmt == '.' && fmt[1] == '*')
- {
- prec = va_arg (arg, int);
- fmt += 2;
- }
-
- /* Recognize the l modifier. It is only important on some
- platforms where long and int have a different size. We
- can use the same code for size_t. */
- if (*fmt == 'l' || *fmt == 'Z')
- {
-#if LONG_MAX != INT_MAX
- long_mod = 1;
-#endif
- ++fmt;
- }
-
- switch (*fmt)
- {
- /* Integer formatting. */
- case 'd':
- case 'u':
- case 'x':
- {
- /* We have to make a difference if long and int have a
- different size. */
-#if LONG_MAX != INT_MAX
- unsigned long int num = (long_mod
- ? va_arg (arg, unsigned long int)
- : va_arg (arg, unsigned int));
-#else
- unsigned long int num = va_arg (arg, unsigned int);
-#endif
- bool negative = false;
- if (*fmt == 'd')
- {
-#if LONG_MAX != INT_MAX
- if (long_mod)
- {
- if ((long int) num < 0)
- negative = true;
- }
- else
- {
- if ((int) num < 0)
- {
- num = (unsigned int) num;
- negative = true;
- }
- }
-#else
- if ((int) num < 0)
- negative = true;
-#endif
- }
-
- /* We use alloca() to allocate the buffer with the most
- pessimistic guess for the size. Using alloca() allows
- having more than one integer formatting in a call. */
- char *buf = (char *) alloca (1 + 3 * sizeof (unsigned long int));
- char *endp = &buf[1 + 3 * sizeof (unsigned long int)];
- char *cp = _itoa (num, endp, *fmt == 'x' ? 16 : 10, 0);
-
- /* Pad to the width the user specified. */
- if (width != -1)
- while (endp - cp < width)
- *--cp = fill;
-
- if (negative)
- *--cp = '-';
-
- iov[niov].iov_base = cp;
- iov[niov].iov_len = endp - cp;
- ++niov;
- }
- break;
-
- case 's':
- /* Get the string argument. */
- iov[niov].iov_base = va_arg (arg, char *);
- iov[niov].iov_len = strlen (iov[niov].iov_base);
- if (prec != -1)
- iov[niov].iov_len = MIN ((size_t) prec, iov[niov].iov_len);
- ++niov;
- break;
-
- case '%':
- iov[niov].iov_base = (void *) fmt;
- iov[niov].iov_len = 1;
- ++niov;
- break;
-
- default:
- assert (! "invalid format specifier");
- }
- ++fmt;
- }
- else if (*fmt == '\n')
- {
- /* See whether we have to print a single newline character. */
- if (fmt == startp)
- {
- iov[niov].iov_base = (char *) startp;
- iov[niov++].iov_len = 1;
- }
- else
- /* No, just add it to the rest of the string. */
- ++iov[niov - 1].iov_len;
-
- /* Next line, print a tag again. */
- tag_p = 1;
- ++fmt;
- }
- }
-
- /* Finally write the result. */
- _dl_writev (fd, iov, niov);
-}
-
-
-/* Write to debug file. */
-void
-_dl_debug_printf (const char *fmt, ...)
-{
- va_list arg;
-
- va_start (arg, fmt);
- _dl_debug_vdprintf (GLRO(dl_debug_fd), 1, fmt, arg);
- va_end (arg);
-}
-
-
-/* Write to debug file but don't start with a tag. */
-void
-_dl_debug_printf_c (const char *fmt, ...)
-{
- va_list arg;
-
- va_start (arg, fmt);
- _dl_debug_vdprintf (GLRO(dl_debug_fd), -1, fmt, arg);
- va_end (arg);
-}
-
-
-/* Write the given file descriptor. */
-void
-_dl_dprintf (int fd, const char *fmt, ...)
-{
- va_list arg;
-
- va_start (arg, fmt);
- _dl_debug_vdprintf (fd, 0, fmt, arg);
- va_end (arg);
-}
-
-void
-_dl_printf (const char *fmt, ...)
-{
- va_list arg;
-
- va_start (arg, fmt);
- _dl_debug_vdprintf (STDOUT_FILENO, 0, fmt, arg);
- va_end (arg);
-}
-
-void
-_dl_error_printf (const char *fmt, ...)
-{
- va_list arg;
-
- va_start (arg, fmt);
- _dl_debug_vdprintf (STDERR_FILENO, 0, fmt, arg);
- va_end (arg);
-}
-
-void
-_dl_fatal_printf (const char *fmt, ...)
-{
- va_list arg;
-
- va_start (arg, fmt);
- _dl_debug_vdprintf (STDERR_FILENO, 0, fmt, arg);
- va_end (arg);
- _exit (127);
-}
-rtld_hidden_def (_dl_fatal_printf)
-
/* Test whether given NAME matches any of the names of the given object. */
int
_dl_name_match_p (const char *name, const struct link_map *map)
@@ -354,7 +82,6 @@ _dl_name_match_p (const char *name, const struct link_map *map)
return 0;
}
-
unsigned long int
_dl_higher_prime_number (unsigned long int n)
{
diff --git a/elf/dl-printf.c b/elf/dl-printf.c
new file mode 100644
index 0000000000000000..d3264ba96cd959bf
--- /dev/null
+++ b/elf/dl-printf.c
@@ -0,0 +1,292 @@
+/* printf implementation for the dynamic loader.
+ Copyright (C) 1997-2022 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <_itoa.h>
+#include <assert.h>
+#include <dl-writev.h>
+#include <ldsodefs.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/uio.h>
+#include <unistd.h>
+
+/* Bare-bones printf implementation. This function only knows about
+ the formats and flags needed and can handle only up to 64 stripes in
+ the output. */
+static void
+_dl_debug_vdprintf (int fd, int tag_p, const char *fmt, va_list arg)
+{
+# define NIOVMAX 64
+ struct iovec iov[NIOVMAX];
+ int niov = 0;
+ pid_t pid = 0;
+ char pidbuf[12];
+
+ while (*fmt != '\0')
+ {
+ const char *startp = fmt;
+
+ if (tag_p > 0)
+ {
+ /* Generate the tag line once. It consists of the PID and a
+ colon followed by a tab. */
+ if (pid == 0)
+ {
+ char *p;
+ pid = __getpid ();
+ assert (pid >= 0 && sizeof (pid_t) <= 4);
+ p = _itoa (pid, &pidbuf[10], 10, 0);
+ while (p > pidbuf)
+ *--p = ' ';
+ pidbuf[10] = ':';
+ pidbuf[11] = '\t';
+ }
+
+ /* Append to the output. */
+ assert (niov < NIOVMAX);
+ iov[niov].iov_len = 12;
+ iov[niov++].iov_base = pidbuf;
+
+ /* No more tags until we see the next newline. */
+ tag_p = -1;
+ }
+
+ /* Skip everything except % and \n (if tags are needed). */
+ while (*fmt != '\0' && *fmt != '%' && (! tag_p || *fmt != '\n'))
+ ++fmt;
+
+ /* Append constant string. */
+ assert (niov < NIOVMAX);
+ if ((iov[niov].iov_len = fmt - startp) != 0)
+ iov[niov++].iov_base = (char *) startp;
+
+ if (*fmt == '%')
+ {
+ /* It is a format specifier. */
+ char fill = ' ';
+ int width = -1;
+ int prec = -1;
+#if LONG_MAX != INT_MAX
+ int long_mod = 0;
+#endif
+
+ /* Recognize zero-digit fill flag. */
+ if (*++fmt == '0')
+ {
+ fill = '0';
+ ++fmt;
+ }
+
+ /* See whether with comes from a parameter. Note that no other
+ way to specify the width is implemented. */
+ if (*fmt == '*')
+ {
+ width = va_arg (arg, int);
+ ++fmt;
+ }
+
+ /* Handle precision. */
+ if (*fmt == '.' && fmt[1] == '*')
+ {
+ prec = va_arg (arg, int);
+ fmt += 2;
+ }
+
+ /* Recognize the l modifier. It is only important on some
+ platforms where long and int have a different size. We
+ can use the same code for size_t. */
+ if (*fmt == 'l' || *fmt == 'Z')
+ {
+#if LONG_MAX != INT_MAX
+ long_mod = 1;
+#endif
+ ++fmt;
+ }
+
+ switch (*fmt)
+ {
+ /* Integer formatting. */
+ case 'd':
+ case 'u':
+ case 'x':
+ {
+ /* We have to make a difference if long and int have a
+ different size. */
+#if LONG_MAX != INT_MAX
+ unsigned long int num = (long_mod
+ ? va_arg (arg, unsigned long int)
+ : va_arg (arg, unsigned int));
+#else
+ unsigned long int num = va_arg (arg, unsigned int);
+#endif
+ bool negative = false;
+ if (*fmt == 'd')
+ {
+#if LONG_MAX != INT_MAX
+ if (long_mod)
+ {
+ if ((long int) num < 0)
+ negative = true;
+ }
+ else
+ {
+ if ((int) num < 0)
+ {
+ num = (unsigned int) num;
+ negative = true;
+ }
+ }
+#else
+ if ((int) num < 0)
+ negative = true;
+#endif
+ }
+
+ /* We use alloca() to allocate the buffer with the most
+ pessimistic guess for the size. Using alloca() allows
+ having more than one integer formatting in a call. */
+ char *buf = (char *) alloca (1 + 3 * sizeof (unsigned long int));
+ char *endp = &buf[1 + 3 * sizeof (unsigned long int)];
+ char *cp = _itoa (num, endp, *fmt == 'x' ? 16 : 10, 0);
+
+ /* Pad to the width the user specified. */
+ if (width != -1)
+ while (endp - cp < width)
+ *--cp = fill;
+
+ if (negative)
+ *--cp = '-';
+
+ iov[niov].iov_base = cp;
+ iov[niov].iov_len = endp - cp;
+ ++niov;
+ }
+ break;
+
+ case 's':
+ /* Get the string argument. */
+ iov[niov].iov_base = va_arg (arg, char *);
+ iov[niov].iov_len = strlen (iov[niov].iov_base);
+ if (prec != -1)
+ iov[niov].iov_len = MIN ((size_t) prec, iov[niov].iov_len);
+ ++niov;
+ break;
+
+ case '%':
+ iov[niov].iov_base = (void *) fmt;
+ iov[niov].iov_len = 1;
+ ++niov;
+ break;
+
+ default:
+ assert (! "invalid format specifier");
+ }
+ ++fmt;
+ }
+ else if (*fmt == '\n')
+ {
+ /* See whether we have to print a single newline character. */
+ if (fmt == startp)
+ {
+ iov[niov].iov_base = (char *) startp;
+ iov[niov++].iov_len = 1;
+ }
+ else
+ /* No, just add it to the rest of the string. */
+ ++iov[niov - 1].iov_len;
+
+ /* Next line, print a tag again. */
+ tag_p = 1;
+ ++fmt;
+ }
+ }
+
+ /* Finally write the result. */
+ _dl_writev (fd, iov, niov);
+}
+
+
+/* Write to debug file. */
+void
+_dl_debug_printf (const char *fmt, ...)
+{
+ va_list arg;
+
+ va_start (arg, fmt);
+ _dl_debug_vdprintf (GLRO(dl_debug_fd), 1, fmt, arg);
+ va_end (arg);
+}
+
+
+/* Write to debug file but don't start with a tag. */
+void
+_dl_debug_printf_c (const char *fmt, ...)
+{
+ va_list arg;
+
+ va_start (arg, fmt);
+ _dl_debug_vdprintf (GLRO(dl_debug_fd), -1, fmt, arg);
+ va_end (arg);
+}
+
+
+/* Write the given file descriptor. */
+void
+_dl_dprintf (int fd, const char *fmt, ...)
+{
+ va_list arg;
+
+ va_start (arg, fmt);
+ _dl_debug_vdprintf (fd, 0, fmt, arg);
+ va_end (arg);
+}
+
+void
+_dl_printf (const char *fmt, ...)
+{
+ va_list arg;
+
+ va_start (arg, fmt);
+ _dl_debug_vdprintf (STDOUT_FILENO, 0, fmt, arg);
+ va_end (arg);
+}
+
+void
+_dl_error_printf (const char *fmt, ...)
+{
+ va_list arg;
+
+ va_start (arg, fmt);
+ _dl_debug_vdprintf (STDERR_FILENO, 0, fmt, arg);
+ va_end (arg);
+}
+
+void
+_dl_fatal_printf (const char *fmt, ...)
+{
+ va_list arg;
+
+ va_start (arg, fmt);
+ _dl_debug_vdprintf (STDERR_FILENO, 0, fmt, arg);
+ va_end (arg);
+ _exit (127);
+}
+rtld_hidden_def (_dl_fatal_printf)

146
glibc-rh2040657-8.patch Normal file
View File

@ -0,0 +1,146 @@
commit 9ba202c78f0aa39f49929eee63c367847da72ee4
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 20:16:05 2022 +0100
Add --with-rtld-early-cflags configure option
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Conflicts:
INSTALL
configure
manual/install.texi
(Missing --with-timeout-factor downstream.)
diff --git a/INSTALL b/INSTALL
index d6d93ec9be4262d7..d8d4e9f155f56616 100644
--- a/INSTALL
+++ b/INSTALL
@@ -106,6 +106,14 @@ if 'CFLAGS' is specified it must enable optimization. For example:
particular case and potentially change debugging information and
metadata only).
+'--with-rtld-early-cflags=CFLAGS'
+ Use additional compiler flags CFLAGS to build the early startup
+ code of the dynamic linker. These flags can be used to enable
+ early dynamic linker diagnostics to run on CPUs which are not
+ compatible with the rest of the GNU C Library, for example, due to
+ compiler flags which target a later instruction set architecture
+ (ISA).
+
'--disable-shared'
Don't build shared libraries even if it is possible. Not all
systems support shared libraries; you need ELF support and
diff --git a/config.make.in b/config.make.in
index e8630a8d0ccf874d..6d43e691f7823262 100644
--- a/config.make.in
+++ b/config.make.in
@@ -110,6 +110,7 @@ CFLAGS = @CFLAGS@
CPPFLAGS-config = @CPPFLAGS@
CPPUNDEFS = @CPPUNDEFS@
extra-nonshared-cflags = @extra_nonshared_cflags@
+rtld-early-cflags = @rtld_early_cflags@
ASFLAGS-config = @ASFLAGS_config@
AR = @AR@
NM = @NM@
diff --git a/configure b/configure
index e9d2b1f398c4dba0..03f4e59e754b5463 100755
--- a/configure
+++ b/configure
@@ -681,6 +681,7 @@ force_install
bindnow
hardcoded_path_in_tests
enable_timezone_tools
+rtld_early_cflags
extra_nonshared_cflags
use_default_link
sysheaders
@@ -761,6 +762,7 @@ with_selinux
with_headers
with_default_link
with_nonshared_cflags
+with_rtld_early_cflags
enable_sanity_checks
enable_shared
enable_profile
@@ -1479,6 +1481,8 @@ Optional Packages:
--with-default-link do not use explicit linker scripts
--with-nonshared-cflags=CFLAGS
build nonshared libraries with additional CFLAGS
+ --with-rtld-early-cflags=CFLAGS
+ build early initialization with additional CFLAGS
--with-cpu=CPU select code for CPU variant
Some influential environment variables:
@@ -3383,6 +3387,16 @@ fi
+# Check whether --with-rtld-early-cflags was given.
+if test "${with_rtld_early_cflags+set}" = set; then :
+ withval=$with_rtld_early_cflags; rtld_early_cflags=$withval
+else
+ rtld_early_cflags=
+fi
+
+
+
+
# Check whether --enable-sanity-checks was given.
if test "${enable_sanity_checks+set}" = set; then :
enableval=$enable_sanity_checks; enable_sanity=$enableval
diff --git a/configure.ac b/configure.ac
index 79f6822d29ce21cf..eb9431875fae1b0e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -162,6 +162,12 @@ AC_ARG_WITH([nonshared-cflags],
[extra_nonshared_cflags=$withval],
[extra_nonshared_cflags=])
AC_SUBST(extra_nonshared_cflags)
+AC_ARG_WITH([rtld-early-cflags],
+ AS_HELP_STRING([--with-rtld-early-cflags=CFLAGS],
+ [build early initialization with additional CFLAGS]),
+ [rtld_early_cflags=$withval],
+ [rtld_early_cflags=])
+AC_SUBST(rtld_early_cflags)
AC_ARG_ENABLE([sanity-checks],
AS_HELP_STRING([--disable-sanity-checks],
diff --git a/elf/Makefile b/elf/Makefile
index 52aafc89cec835ab..778e393395fc5248 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -152,6 +152,14 @@ CFLAGS-.o += $(call elide-stack-protector,.o,$(elide-routines.os))
CFLAGS-.op += $(call elide-stack-protector,.op,$(elide-routines.os))
CFLAGS-.os += $(call elide-stack-protector,.os,$(all-rtld-routines))
+# Add the requested compiler flags to the early startup code.
+CFLAGS-dl-printf.os += $(rtld-early-cflags)
+CFLAGS-dl-sysdep.os += $(rtld-early-cflags)
+CFLAGS-dl-tunables.os += $(rtld-early-cflags)
+CFLAGS-dl-write.os += $(rtld-early-cflags)
+CFLAGS-dl-writev.os += $(rtld-early-cflags)
+CFLAGS-rtld.os += $(rtld-early-cflags)
+
ifeq ($(unwind-find-fde),yes)
routines += unwind-dw2-fde-glibc
shared-only-routines += unwind-dw2-fde-glibc
diff --git a/manual/install.texi b/manual/install.texi
index 1320ac69b3c645f2..816b77a0a25a88a7 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -131,6 +131,13 @@ that the objects in @file{libc_nonshared.a} are compiled with this flag
(although this will not affect the generated code in this particular
case and potentially change debugging information and metadata only).
+@item --with-rtld-early-cflags=@var{cflags}
+Use additional compiler flags @var{cflags} to build the early startup
+code of the dynamic linker. These flags can be used to enable early
+dynamic linker diagnostics to run on CPUs which are not compatible with
+the rest of @theglibc{}, for example, due to compiler flags which target
+a later instruction set architecture (ISA).
+
@c disable static doesn't work currently
@c @item --disable-static
@c Don't build static libraries. Static libraries aren't that useful these

52
glibc-rh2040657-9.patch Normal file
View File

@ -0,0 +1,52 @@
commit 550116486692efc394d03befee19f7e9c17d5044
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Jan 14 20:16:05 2022 +0100
powerpc64le: Use <gcc-macros.h> in early HWCAP check
This is required so that the checks still work if $(early-cflags)
selects a different ISA level.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/sysdeps/powerpc/powerpc64/le/dl-hwcap-check.h b/sysdeps/powerpc/powerpc64/le/dl-hwcap-check.h
index 0437ae4d522fb36d..899c74f880e6f5f0 100644
--- a/sysdeps/powerpc/powerpc64/le/dl-hwcap-check.h
+++ b/sysdeps/powerpc/powerpc64/le/dl-hwcap-check.h
@@ -19,17 +19,18 @@
#ifndef _DL_HWCAP_CHECK_H
#define _DL_HWCAP_CHECK_H
+#include <gcc-macros.h>
#include <ldsodefs.h>
static inline void
dl_hwcap_check (void)
{
-#ifdef _ARCH_PWR9
+#ifdef GCCMACRO_ARCH_PWR9
if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_00) == 0)
_dl_fatal_printf ("\
Fatal glibc error: CPU lacks ISA 3.00 support (POWER9 or later required)\n");
#endif
-#ifdef __FLOAT128_HARDWARE__
+#ifdef GCCMACRO__FLOAT128_HARDWARE__
if ((GLRO (dl_hwcap2) & PPC_FEATURE2_HAS_IEEE128) == 0)
_dl_fatal_printf ("\
Fatal glibc error: CPU lacks float128 support (POWER 9 or later required)\n");
@@ -37,12 +38,12 @@ Fatal glibc error: CPU lacks float128 support (POWER 9 or later required)\n");
/* This check is not actually reached when building for POWER10 and
running on POWER9 because there are faulting PCREL instructions
before this point. */
-#if defined _ARCH_PWR10 || defined __PCREL__
+#if defined GCCMACRO_ARCH_PWR10 || defined GCCMACRO__PCREL__
if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_1) == 0)
_dl_fatal_printf ("\
Fatal glibc error: CPU lacks ISA 3.10 support (POWER10 or later required)\n");
#endif
-#ifdef __MMA__
+#ifdef GCCMACRO__MMA__
if ((GLRO (dl_hwcap2) & PPC_FEATURE2_MMA) == 0)
_dl_fatal_printf ("\
Fatal glibc error: CPU lacks MMA support (POWER10 or later required)\n");

32
glibc.spec
View File

@ -148,7 +148,7 @@ end \
Summary: The GNU libc libraries
Name: glibc
Version: %{glibcversion}
Release: 19%{?dist}
Release: 20%{?dist}
# In general, GPLv2+ is used by programs, LGPLv2+ is used for
# libraries.
@ -326,6 +326,18 @@ Patch126: glibc-rh2024347-10.patch
Patch127: glibc-rh2024347-11.patch
Patch128: glibc-rh2024347-12.patch
Patch129: glibc-rh2024347-13.patch
Patch130: glibc-rh2040657-1.patch
Patch131: glibc-rh2040657-2.patch
Patch132: glibc-rh2040657-3.patch
Patch133: glibc-rh2040657-4.patch
Patch134: glibc-rh2040657-5.patch
Patch135: glibc-rh2040657-6.patch
Patch136: glibc-rh2040657-7.patch
Patch137: glibc-rh2040657-8.patch
Patch138: glibc-rh2040657-9.patch
Patch139: glibc-rh2040657-10.patch
Patch140: glibc-rh2040657-11.patch
Patch141: glibc-rh2040657-12.patch
##############################################################################
# Continued list of core "glibc" package information:
@ -1242,6 +1254,20 @@ rpm_inherit_flags \
"-mtune=zEC12" \
"-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1" \
# Use the RHEL 8 baseline for the early dynamic loader code, so that
# running on too old CPUs results in a diagnostic.
%if 0%{?rhel} >= 9
%ifarch ppc64le
%define glibc_rtld_early_cflags -mcpu=power8
%endif
%ifarch s390x
%define glibc_rtld_early_cflags -march=z13
%endif
%ifarch x86_64
%define glibc_rtld_early_cflags -march=x86-64
%endif
%endif
# libc_nonshared.a cannot be built with the default hardening flags
# because the glibc build system is incompatible with
# -D_FORTIFY_SOURCE. The object files need to be marked as to be
@ -1288,6 +1314,7 @@ build()
--enable-tunables \
--enable-systemtap \
${core_with_options} \
%{?glibc_rtld_early_cflags:--with-rtld-early-cflags=%glibc_rtld_early_cflags} \
%ifarch x86_64 %{ix86}
--enable-cet \
%endif
@ -2354,6 +2381,9 @@ fi
%files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
%changelog
* Wed Jan 19 2022 Florian Weimer <fweimer@redhat.com> - 2.34-20
- More reliable CPU compatibility diagnostics (#2040657)
* Fri Jan 14 2022 Florian Weimer <fweimer@redhat.com> - 2.34-19
- Optionally accelerate sched_getcpu using rseq (#2024347)