[{"id":3679887,"web_url":"http://patchwork.ozlabs.org/comment/3679887/","msgid":"","list_archive_url":null,"date":"2026-04-21T13:10:20","subject":"Re: [PATCH v3 8/8] tests: misc: Use new tunable handling for BTI and\n GCS tests","submitter":{"id":66065,"url":"http://patchwork.ozlabs.org/api/people/66065/","name":"Adhemerval Zanella Netto","email":"adhemerval.zanella@linaro.org"},"content":"On 16/04/26 11:30, Yury Khrustalev wrote:\n> Use new way of handling test tunables for BTI and GCS tests.\n\n\nLGTM, thanks.\n\nReviewed-by: Adhemerval Zanella \n\n> ---\n> sysdeps/unix/sysv/linux/aarch64/Makefile | 129 ++++++++++++-----------\n> 1 file changed, 65 insertions(+), 64 deletions(-)\n> \n> diff --git a/sysdeps/unix/sysv/linux/aarch64/Makefile b/sysdeps/unix/sysv/linux/aarch64/Makefile\n> index 57461fded7..7bddcc0f03 100644\n> --- a/sysdeps/unix/sysv/linux/aarch64/Makefile\n> +++ b/sysdeps/unix/sysv/linux/aarch64/Makefile\n> @@ -70,21 +70,19 @@ $(objpfx)tst-bti-ld-debug-dlopen.out: $(objpfx)tst-bti-mod-unprot.so\n> $(objpfx)tst-bti-permissive-dlopen.out: $(objpfx)tst-bti-mod-unprot.so\n> \n> $(objpfx)tst-bti-abort-unprot-preload.out: $(objpfx)tst-bti-mod-unprot-preload.so\n> -tst-bti-abort-unprot-preload-ENV = \\\n> - GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1 \\\n> - LD_PRELOAD=$(objpfx)tst-bti-mod-unprot-preload.so\n> +tst-bti-abort-unprot-preload-ENV = LD_PRELOAD=$(objpfx)tst-bti-mod-unprot-preload.so\n> +tst-bti-abort-unprot-preload-TUNABLES = glibc.cpu.aarch64_bti=1\n> \n> $(objpfx)tst-bti-dep-prot-preload.out: $(objpfx)tst-bti-mod-prot-preload.so\n> # The 'fun' function will be provided by the preload library\n> LDFLAGS-tst-bti-dep-prot-preload = -Wl,--unresolved-symbols=ignore-all\n> -tst-bti-dep-prot-preload-ENV = \\\n> - GLIBC_TUNABLES=glibc.cpu.aarch64_bti=0 \\\n> - LD_PRELOAD=$(objpfx)tst-bti-mod-prot-preload.so\n> +tst-bti-dep-prot-preload-ENV = LD_PRELOAD=$(objpfx)tst-bti-mod-prot-preload.so\n> +tst-bti-dep-prot-preload-TUNABLES += glibc.cpu.aarch64_bti=0\n> +\n> \n> $(objpfx)tst-bti-permissive-preload.out: $(objpfx)tst-bti-mod-unprot-preload.so\n> -tst-bti-permissive-preload-ENV = \\\n> - GLIBC_TUNABLES=glibc.cpu.aarch64_bti=0 \\\n> - LD_PRELOAD=$(objpfx)tst-bti-mod-unprot-preload.so\n> +tst-bti-permissive-preload-ENV = LD_PRELOAD=$(objpfx)tst-bti-mod-unprot-preload.so\n> +tst-bti-permissive-preload-TUNABLES += glibc.cpu.aarch64_bti=0\n> \n> CFLAGS-tst-bti-abort-unprot.o += -mbranch-protection=none\n> CFLAGS-tst-bti-ld-debug-exe.o += -mbranch-protection=none\n> @@ -93,17 +91,17 @@ CFLAGS-tst-bti-mod-unprot.os += -mbranch-protection=none\n> CFLAGS-tst-bti-mod-unprot-preload.os += -mbranch-protection=none\n> CFLAGS-tst-bti-mod-unprot-audit.os += -mbranch-protection=none\n> \n> -tst-bti-abort-imm-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> -tst-bti-abort-transitive-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> -tst-bti-abort-unprot-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> -tst-bti-dep-prot-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> -tst-bti-dlopen-imm-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> -tst-bti-dlopen-prot-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> -tst-bti-dlopen-transitive-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> +tst-bti-abort-imm-TUNABLES = glibc.cpu.aarch64_bti=1\n> +tst-bti-abort-transitive-TUNABLES = glibc.cpu.aarch64_bti=1\n> +tst-bti-abort-unprot-TUNABLES = glibc.cpu.aarch64_bti=1\n> +tst-bti-dep-prot-TUNABLES += glibc.cpu.aarch64_bti=1\n> +tst-bti-dlopen-imm-TUNABLES += glibc.cpu.aarch64_bti=1\n> +tst-bti-dlopen-prot-TUNABLES += glibc.cpu.aarch64_bti=1\n> +tst-bti-dlopen-transitive-TUNABLES += glibc.cpu.aarch64_bti=1\n> \n> -tst-bti-permissive-imm-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=0\n> -tst-bti-permissive-transitive-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=0\n> -tst-bti-permissive-dlopen-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=0\n> +tst-bti-permissive-imm-TUNABLES += glibc.cpu.aarch64_bti=0\n> +tst-bti-permissive-transitive-TUNABLES += glibc.cpu.aarch64_bti=0\n> +tst-bti-permissive-dlopen-TUNABLES += glibc.cpu.aarch64_bti=0\n> \n> $(objpfx)tst-bti-unprot-audit.out: $(objpfx)tst-bti-mod-unprot-audit.so\n> tst-bti-unprot-audit-ARGS = -- $(host-test-program-cmd)\n> @@ -112,14 +110,16 @@ $(objpfx)tst-bti-prot-audit.out: $(objpfx)tst-bti-mod-prot-audit.so\n> $(objpfx)tst-bti-prot-audit: $(objpfx)tst-bti-mod-prot.so\n> tst-bti-prot-audit-ARGS = -- $(host-test-program-cmd)\n> \n> -tst-bti-permissive-audit-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=0\n> +tst-bti-permissive-audit-TUNABLES += glibc.cpu.aarch64_bti=0\n> $(objpfx)tst-bti-permissive-audit.out: $(objpfx)tst-bti-mod-unprot-audit.so\n> $(objpfx)tst-bti-permissive-audit: $(objpfx)tst-bti-mod.so\n> tst-bti-permissive-audit-ARGS = -- $(host-test-program-cmd)\n> \n> define run-bti-abort-test\n> $(test-wrapper-env) $(run-program-env) \\\n> - $(tst-bti-abort-$*-ENV) $(host-test-program-cmd)\n> + $(tst-bti-abort-$*-ENV) \\\n> + GLIBC_TUNABLES=$(call join-with-col,$(tst-bti-abort-$*-TUNABLES)) \\\n> + $(host-test-program-cmd)\n> endef\n> \n> $(objpfx)tst-bti-abort-%.out: $(..)sysdeps/unix/sysv/linux/aarch64/tst-bti-abort.sh \\\n> @@ -131,7 +131,7 @@ tests-static += \\\n> tst-bti-abort-static \\\n> # tests-static\n> \n> -tst-bti-abort-static-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_bti=1\n> +tst-bti-abort-static-TUNABLES = glibc.cpu.aarch64_bti=1\n> CFLAGS-tst-bti-abort-static.o += -mbranch-protection=none\n> \n> $(objpfx)tst-bti-ld-debug-%.out: $(..)elf/tst-dl-debug-protect.sh $(objpfx)tst-bti-ld-debug-%\n> @@ -202,7 +202,9 @@ tests-static += \\\n> \n> define run-gcs-abort-test\n> $(test-wrapper-env) $(run-program-env) \\\n> - $(tst-gcs-$*-abort-ENV) $(host-test-program-cmd)\n> + $(tst-gcs-$*-abort-ENV) \\\n> + GLIBC_TUNABLES=$(call join-with-col,$(tst-gcs-$*-abort-TUNABLES)) \\\n> + $(host-test-program-cmd)\n> endef\n> \n> $(objpfx)tst-gcs-%-abort.out: $(..)sysdeps/unix/sysv/linux/aarch64/tst-gcs-abort.sh \\\n> @@ -224,37 +226,37 @@ LDFLAGS-tst-gcs-optional-static-on += -Wl,-z,gcs=always\n> LDFLAGS-tst-gcs-optional-static-off += -Wl,-z,gcs=never\n> LDFLAGS-tst-gcs-override-static += -Wl,-z,gcs=never\n> \n> -tst-gcs-disabled-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=0\n> -tst-gcs-enforced-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> -tst-gcs-enforced-abort-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> -tst-gcs-optional-on-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> -tst-gcs-optional-off-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> -tst-gcs-override-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=3\n> +tst-gcs-disabled-TUNABLES += glibc.cpu.aarch64_gcs=0\n> +tst-gcs-enforced-TUNABLES += glibc.cpu.aarch64_gcs=1\n> +tst-gcs-enforced-abort-TUNABLES += glibc.cpu.aarch64_gcs=1\n> +tst-gcs-optional-on-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +tst-gcs-optional-off-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +tst-gcs-override-TUNABLES += glibc.cpu.aarch64_gcs=3\n> \n> -tst-gcs-disabled-static-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=0\n> -tst-gcs-enforced-static-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> -tst-gcs-enforced-static-abort-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> -tst-gcs-optional-static-on-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> -tst-gcs-optional-static-off-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> -tst-gcs-override-static-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=3\n> +tst-gcs-disabled-static-TUNABLES += glibc.cpu.aarch64_gcs=0\n> +tst-gcs-enforced-static-TUNABLES += glibc.cpu.aarch64_gcs=1\n> +tst-gcs-enforced-static-abort-TUNABLES += glibc.cpu.aarch64_gcs=1\n> +tst-gcs-optional-static-on-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +tst-gcs-optional-static-off-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +tst-gcs-override-static-TUNABLES += glibc.cpu.aarch64_gcs=3\n> \n> LDFLAGS-tst-gcs-execv += -Wl,-z,gcs=always\n> -tst-gcs-execv-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> +tst-gcs-execv-TUNABLES += glibc.cpu.aarch64_gcs=1\n> tst-gcs-execv-ARGS = -- $(host-test-program-cmd)\n> LDFLAGS-tst-gcs-fork += -Wl,-z,gcs=always\n> -tst-gcs-fork-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> +tst-gcs-fork-TUNABLES += glibc.cpu.aarch64_gcs=2\n> \n> LDFLAGS-tst-gcs-lock += -Wl,-z,gcs=always\n> -tst-gcs-lock-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> +tst-gcs-lock-TUNABLES += glibc.cpu.aarch64_gcs=1\n> LDFLAGS-tst-gcs-lock-ptrace += -Wl,-z,gcs=always\n> -tst-gcs-lock-ptrace-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> +tst-gcs-lock-ptrace-TUNABLES += glibc.cpu.aarch64_gcs=1\n> tst-gcs-lock-ptrace-ARGS = -- $(host-test-program-cmd)\n> LDFLAGS-tst-gcs-lock-static += -Wl,-z,gcs=always\n> -tst-gcs-lock-static-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> +tst-gcs-lock-static-TUNABLES += glibc.cpu.aarch64_gcs=1\n> LDFLAGS-tst-gcs-unlock += -Wl,-z,gcs=always\n> -tst-gcs-unlock-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> +tst-gcs-unlock-TUNABLES += glibc.cpu.aarch64_gcs=2\n> LDFLAGS-tst-gcs-unlock-static += -Wl,-z,gcs=always\n> -tst-gcs-unlock-static-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> +tst-gcs-unlock-static-TUNABLES += glibc.cpu.aarch64_gcs=2\n> \n> # force one of the dependencies to be unmarked\n> LDFLAGS-tst-gcs-mod2.so += -Wl,-z,gcs=never\n> @@ -283,10 +285,10 @@ $(objpfx)tst-gcs-mod1.so: $(objpfx)tst-gcs-mod2.so\n> $(objpfx)tst-gcs-ld-debug-both: $(objpfx)tst-gcs-mod2.so\n> $(objpfx)tst-gcs-ld-debug-shared: $(objpfx)tst-gcs-mod1.so $(objpfx)tst-gcs-mod3.so\n> \n> -tst-gcs-shared-disabled-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=0\n> -tst-gcs-shared-enforced-abort-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> -tst-gcs-shared-optional-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> -tst-gcs-shared-override-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=3\n> +tst-gcs-shared-disabled-TUNABLES += glibc.cpu.aarch64_gcs=0\n> +tst-gcs-shared-enforced-abort-TUNABLES = glibc.cpu.aarch64_gcs=1\n> +tst-gcs-shared-optional-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +tst-gcs-shared-override-TUNABLES += glibc.cpu.aarch64_gcs=3\n> \n> LDFLAGS-tst-gcs-dlopen-disabled = -Wl,-z,gcs=always\n> LDFLAGS-tst-gcs-dlopen-enforced = -Wl,-z,gcs=always\n> @@ -296,11 +298,11 @@ LDFLAGS-tst-gcs-dlopen-override = -Wl,-z,gcs=always\n> LDFLAGS-tst-gcs-ld-debug-exe = -Wl,-z,gcs=never\n> LDFLAGS-tst-gcs-ld-debug-both = -Wl,-z,gcs=never\n> \n> -tst-gcs-dlopen-disabled-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=0\n> -tst-gcs-dlopen-enforced-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1\n> -tst-gcs-dlopen-optional-on-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> -tst-gcs-dlopen-optional-off-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2\n> -tst-gcs-dlopen-override-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=3\n> +tst-gcs-dlopen-disabled-TUNABLES += glibc.cpu.aarch64_gcs=0\n> +tst-gcs-dlopen-enforced-TUNABLES += glibc.cpu.aarch64_gcs=1\n> +tst-gcs-dlopen-optional-on-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +tst-gcs-dlopen-optional-off-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +tst-gcs-dlopen-override-TUNABLES += glibc.cpu.aarch64_gcs=3\n> \n> $(objpfx)tst-gcs-dlopen-disabled.out: $(objpfx)tst-gcs-mod2.so\n> $(objpfx)tst-gcs-dlopen-enforced.out: $(objpfx)tst-gcs-mod2.so\n> @@ -311,7 +313,7 @@ $(objpfx)tst-gcs-ld-debug-dlopen.out: $(objpfx)tst-gcs-mod2.so\n> \n> LDFLAGS-tst-gcs-noreturn = -Wl,-z,gcs=always\n> \n> -tst-gcs-noreturn-ENV = GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=0\n> +tst-gcs-noreturn-TUNABLES += glibc.cpu.aarch64_gcs=0\n> \n> $(objpfx)tst-gcs-ld-debug-%.out: $(..)elf/tst-dl-debug-protect.sh $(objpfx)tst-gcs-ld-debug-%\n> \t$(SHELL) $< $(objpfx) '$(test-wrapper-env)' '$(rtld-prefix)' \\\n> @@ -329,18 +331,17 @@ $(objpfx)tst-gcs-preload-enforced-abort: $(objpfx)tst-gcs-mod1.so\n> $(objpfx)tst-gcs-preload-optional: $(objpfx)tst-gcs-mod1.so\n> $(objpfx)tst-gcs-preload-override: $(objpfx)tst-gcs-mod1.so\n> \n> -tst-gcs-preload-disabled-ENV = \\\n> - GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=0 \\\n> - LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> -tst-gcs-preload-enforced-abort-ENV = \\\n> - GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=1 \\\n> - LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> -tst-gcs-preload-optional-ENV = \\\n> - GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=2 \\\n> - LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> -tst-gcs-preload-override-ENV = \\\n> - GLIBC_TUNABLES=glibc.cpu.aarch64_gcs=3 \\\n> - LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> +tst-gcs-preload-disabled-ENV = LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> +tst-gcs-preload-disabled-TUNABLES += glibc.cpu.aarch64_gcs=0\n> +\n> +tst-gcs-preload-enforced-abort-ENV = LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> +tst-gcs-preload-enforced-abort-TUNABLES += glibc.cpu.aarch64_gcs=1\n> +\n> +tst-gcs-preload-optional-ENV = LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> +tst-gcs-preload-optional-TUNABLES += glibc.cpu.aarch64_gcs=2\n> +\n> +tst-gcs-preload-override-ENV = LD_PRELOAD=$(objpfx)tst-gcs-mod1.so\n> +tst-gcs-preload-override-TUNABLES += glibc.cpu.aarch64_gcs=3\n> \n> LDFLAGS-tst-gcs-audit1.so += 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tunable handling for BTI and\n GCS tests","To":"Yury Khrustalev , libc-alpha@sourceware.org","Cc":"Florian Weimer , Carlos O'Donell ,\n Wilco Dijkstra ","References":"<20260416143027.1881673-1-yury.khrustalev@arm.com>\n <20260416143027.1881673-9-yury.khrustalev@arm.com>","Content-Language":"en-US","From":"Adhemerval Zanella Netto ","Organization":"Linaro","In-Reply-To":"<20260416143027.1881673-9-yury.khrustalev@arm.com>","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"7bit","X-BeenThere":"libc-alpha@sourceware.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Libc-alpha mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org"}}]