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glibc/glibc-upstream-2.34-131.patch
Florian Weimer abcc04a5bf Sync with upstream branch release/2.34/master 
Upstream commit: 224d8c1890b6c57c7e4e8ddbb792dd9552086704

- debug: Synchronize feature guards in fortified functions [BZ #28746]
- debug: Autogenerate _FORTIFY_SOURCE tests
- Enable _FORTIFY_SOURCE=3 for gcc 12 and above
- fortify: Fix spurious warning with realpath
- __glibc_unsafe_len: Fix comment
- debug: Add tests for _FORTIFY_SOURCE=3
- Make sure that the fortified function conditionals are constant
- Don't add access size hints to fortifiable functions
- nss: Protect against errno changes in function lookup (bug 28953)
- nss: Do not mention NSS test modules in <gnu/lib-names.h>
- io: Add fsync call in tst-stat
- hppa: Fix warnings from _dl_lookup_address
- nptl: Fix cleanups for stack grows up [BZ# 28899]
- hppa: Revise gettext trampoline design
- hppa: Fix swapcontext
- Fix elf/tst-audit2 on hppa
- localedef: Handle symbolic links when generating locale-archive
- NEWS: Add a bug fix entry for BZ #28896
- x86: Fix TEST_NAME to make it a string in tst-strncmp-rtm.c
- x86: Test wcscmp RTM in the wcsncmp overflow case [BZ #28896]
- x86: Fallback {str|wcs}cmp RTM in the ncmp overflow case [BZ #28896]
- string: Add a testcase for wcsncmp with SIZE_MAX [BZ #28755]
- linux: fix accuracy of get_nprocs and get_nprocs_conf [BZ #28865]
- Add reference to BZ#28860 on NEWS
- linux: Fix missing __convert_scm_timestamps (BZ #28860)
2022-03-15 08:56:55 +01:00

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commit f8c2f620f1929ad78cb0a247601bec972f140c51
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Wed Jan 12 23:34:23 2022 +0530
debug: Autogenerate _FORTIFY_SOURCE tests
Rename debug/tst-chk1.c to debug/tst-fortify.c and add make hackery to
autogenerate tests with different macros enabled to build and run the
same test with different configurations as well as different
fortification levels.
The change also ends up expanding the -lfs tests to include
_FORTIFY_SOURCE=3.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit db27f1251b008280a29d540b4f8ab2a38a0d80af)
diff --git a/Makerules b/Makerules
index 596fa68376f45298..7fbe85719aacc230 100644
--- a/Makerules
+++ b/Makerules
@@ -424,6 +424,12 @@ $(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
endef
object-suffixes-left := $(all-object-suffixes)
include $(o-iterator)
+
+define o-iterator-doit
+$(objpfx)%$o: $(objpfx)%.cc $(before-compile); $$(compile-command.cc)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
endif
# Generate .dT files as we compile.
diff --git a/debug/Makefile b/debug/Makefile
index bc37e466eed490fa..acc1b8f6ad029c62 100644
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -1,4 +1,5 @@
-# Copyright (C) 1998-2021 Free Software Foundation, Inc.
+# Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright The GNU Toolchain Authors.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -110,32 +111,60 @@ CFLAGS-tst-longjmp_chk3.c += -fexceptions -fasynchronous-unwind-tables
CPPFLAGS-tst-longjmp_chk3.c += -D_FORTIFY_SOURCE=1
CPPFLAGS-tst-realpath-chk.c += -D_FORTIFY_SOURCE=2
+# _FORTIFY_SOURCE tests.
+# Auto-generate tests for _FORTIFY_SOURCE for different levels, compilers and
+# preprocessor conditions based on tst-fortify.c.
+#
+# To add a new test condition, define a cflags-$(cond) make variable to set
+# CFLAGS for the file.
+
+tests-all-chk = tst-fortify
+tests-c-chk =
+tests-cc-chk =
+
+CFLAGS-tst-fortify.c += -Wno-format -Wno-deprecated-declarations -Wno-error
+
+# No additional flags for the default tests.
+define cflags-default
+endef
+
+define cflags-lfs
+CFLAGS-tst-fortify-$(1)-lfs-$(2).$(1) += -D_FILE_OFFSET_BITS=64
+endef
+
# We know these tests have problems with format strings, this is what
# we are testing. Disable that warning. They are also testing
# deprecated functions (notably gets) so disable that warning as well.
# And they also generate warnings from warning attributes, which
# cannot be disabled via pragmas, so require -Wno-error to be used.
-CFLAGS-tst-chk1.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk2.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk3.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk4.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk5.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk6.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk7.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk8.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk1.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk2.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk3.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk4.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk5.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk6.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-LDLIBS-tst-chk4 = -lstdc++
-LDLIBS-tst-chk5 = -lstdc++
-LDLIBS-tst-chk6 = -lstdc++
-LDLIBS-tst-chk8 = -lstdc++
-LDLIBS-tst-lfschk4 = -lstdc++
-LDLIBS-tst-lfschk5 = -lstdc++
-LDLIBS-tst-lfschk6 = -lstdc++
+define gen-chk-test
+tests-$(1)-chk += tst-fortify-$(1)-$(2)-$(3)
+CFLAGS-tst-fortify-$(1)-$(2)-$(3).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
+ -Wno-deprecated-declarations \
+ -Wno-error
+$(eval $(call cflags-$(2),$(1),$(3)))
+$(objpfx)tst-fortify-$(1)-$(2)-$(3).$(1): tst-fortify.c Makefile
+ ( echo "/* Autogenerated from Makefile. */"; \
+ echo ""; \
+ echo "#include \"tst-fortify.c\"" ) > $$@.tmp
+ mv $$@.tmp $$@
+endef
+
+chk-extensions = c cc
+chk-types = default lfs
+chk-levels = 1 2 3
+
+$(foreach e,$(chk-extensions), \
+ $(foreach t,$(chk-types), \
+ $(foreach l,$(chk-levels), \
+ $(eval $(call gen-chk-test,$(e),$(t),$(l))))))
+
+tests-all-chk += $(tests-c-chk) $(tests-cc-chk)
+
+define link-cc
+LDLIBS-$(1) = -lstdc++
+endef
+$(foreach t,$(tests-cc-chk), $(eval $(call link-cc,$(t))))
# backtrace_symbols only works if we link with -rdynamic. backtrace
# requires unwind tables on most architectures.
@@ -152,19 +181,25 @@ LDFLAGS-tst-backtrace6 = -rdynamic
CFLAGS-tst-ssp-1.c += -fstack-protector-all
-tests = backtrace-tst tst-longjmp_chk tst-chk1 tst-chk2 tst-chk3 \
- tst-lfschk1 tst-lfschk2 tst-lfschk3 test-strcpy_chk test-stpcpy_chk \
- tst-chk4 tst-chk5 tst-chk6 tst-chk7 tst-chk8 tst-lfschk4 tst-lfschk5 \
- tst-lfschk6 tst-longjmp_chk2 tst-backtrace2 tst-backtrace3 \
- tst-backtrace4 tst-backtrace5 tst-backtrace6 tst-realpath-chk
+tests = backtrace-tst \
+ tst-longjmp_chk \
+ test-strcpy_chk \
+ test-stpcpy_chk \
+ tst-longjmp_chk2 \
+ tst-backtrace2 \
+ tst-backtrace3 \
+ tst-backtrace4 \
+ tst-backtrace5 \
+ tst-backtrace6 \
+ tst-realpath-chk \
+ $(tests-all-chk)
ifeq ($(have-ssp),yes)
tests += tst-ssp-1
endif
ifeq (,$(CXX))
-tests-unsupported = tst-chk4 tst-chk5 tst-chk6 tst-chk8 \
- tst-lfschk4 tst-lfschk5 tst-lfschk6
+tests-unsupported = $(tests-cc-chk)
endif
extra-libs = libSegFault libpcprofile
@@ -191,20 +226,10 @@ ifeq ($(run-built-tests),yes)
LOCALES := de_DE.UTF-8
include ../gen-locales.mk
-$(objpfx)tst-chk1.out: $(gen-locales)
-$(objpfx)tst-chk2.out: $(gen-locales)
-$(objpfx)tst-chk3.out: $(gen-locales)
-$(objpfx)tst-chk4.out: $(gen-locales)
-$(objpfx)tst-chk5.out: $(gen-locales)
-$(objpfx)tst-chk6.out: $(gen-locales)
-$(objpfx)tst-chk7.out: $(gen-locales)
-$(objpfx)tst-chk8.out: $(gen-locales)
-$(objpfx)tst-lfschk1.out: $(gen-locales)
-$(objpfx)tst-lfschk2.out: $(gen-locales)
-$(objpfx)tst-lfschk3.out: $(gen-locales)
-$(objpfx)tst-lfschk4.out: $(gen-locales)
-$(objpfx)tst-lfschk5.out: $(gen-locales)
-$(objpfx)tst-lfschk6.out: $(gen-locales)
+define chk-gen-locales
+$(objpfx)$(1).out: $(gen-locales)
+endef
+$(foreach t, $(tests-all-chk), $(eval $(call chk-gen-locales,$(t))))
endif
sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
diff --git a/debug/tst-chk2.c b/debug/tst-chk2.c
deleted file mode 100644
index be37ce2d22f0760a..0000000000000000
--- a/debug/tst-chk2.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 1
-#include "tst-chk1.c"
diff --git a/debug/tst-chk3.c b/debug/tst-chk3.c
deleted file mode 100644
index 38b8e4fb360ba722..0000000000000000
--- a/debug/tst-chk3.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 2
-#include "tst-chk1.c"
diff --git a/debug/tst-chk4.cc b/debug/tst-chk4.cc
deleted file mode 100644
index c82e6aac86038791..0000000000000000
--- a/debug/tst-chk4.cc
+++ /dev/null
@@ -1 +0,0 @@
-#include "tst-chk1.c"
diff --git a/debug/tst-chk5.cc b/debug/tst-chk5.cc
deleted file mode 100644
index be37ce2d22f0760a..0000000000000000
--- a/debug/tst-chk5.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 1
-#include "tst-chk1.c"
diff --git a/debug/tst-chk6.cc b/debug/tst-chk6.cc
deleted file mode 100644
index 38b8e4fb360ba722..0000000000000000
--- a/debug/tst-chk6.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 2
-#include "tst-chk1.c"
diff --git a/debug/tst-chk7.c b/debug/tst-chk7.c
deleted file mode 100644
index 2a7b32381268135c..0000000000000000
--- a/debug/tst-chk7.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 3
-#include "tst-chk1.c"
diff --git a/debug/tst-chk8.cc b/debug/tst-chk8.cc
deleted file mode 100644
index 2a7b32381268135c..0000000000000000
--- a/debug/tst-chk8.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 3
-#include "tst-chk1.c"
diff --git a/debug/tst-chk1.c b/debug/tst-fortify.c
similarity index 100%
rename from debug/tst-chk1.c
rename to debug/tst-fortify.c
diff --git a/debug/tst-lfschk1.c b/debug/tst-lfschk1.c
deleted file mode 100644
index f3e6d47d5e4484c3..0000000000000000
--- a/debug/tst-lfschk1.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk1.c"
diff --git a/debug/tst-lfschk2.c b/debug/tst-lfschk2.c
deleted file mode 100644
index 95d4db1d32d2eeb3..0000000000000000
--- a/debug/tst-lfschk2.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk2.c"
diff --git a/debug/tst-lfschk3.c b/debug/tst-lfschk3.c
deleted file mode 100644
index 50a1ae1258f1553d..0000000000000000
--- a/debug/tst-lfschk3.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk3.c"
diff --git a/debug/tst-lfschk4.cc b/debug/tst-lfschk4.cc
deleted file mode 100644
index f3e6d47d5e4484c3..0000000000000000
--- a/debug/tst-lfschk4.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk1.c"
diff --git a/debug/tst-lfschk5.cc b/debug/tst-lfschk5.cc
deleted file mode 100644
index 95d4db1d32d2eeb3..0000000000000000
--- a/debug/tst-lfschk5.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk2.c"
diff --git a/debug/tst-lfschk6.cc b/debug/tst-lfschk6.cc
deleted file mode 100644
index 50a1ae1258f1553d..0000000000000000
--- a/debug/tst-lfschk6.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk3.c"
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