| Message ID | 20240422170842.2073979-1-usama.anjum@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | selftests: kvm: fix undeclared function error | expand |
On Mon, Apr 22, 2024, Muhammad Usama Anjum wrote: > Include kvm_test_harness.h first which will include kselftest_harness.h > for _GNU_SOURCE to get defined first before inclusion of stdio.h. It > is required for declaration of asprintf(). It removes the following > build error caught by clang-17: > > In file included from x86_64/fix_hypercall_test.c:12: > In file included from include/kvm_test_harness.h:11: > ../kselftest_harness.h:1169:2: error: call to undeclared function > 'asprintf'; ISO C99 and later do not support implicit function declarations > [-Wimplicit-function-declaration] > 1169 | asprintf(&test_name, "%s%s%s.%s", f->name, > | ^ > > Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> > --- > tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c b/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c > index f3c2239228b10..75306dcfaad6c 100644 > --- a/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c > +++ b/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c > @@ -4,12 +4,12 @@ > * > * Tests for KVM paravirtual feature disablement > */ > +#include "kvm_test_harness.h" > #include <asm/kvm_para.h> > #include <linux/kvm_para.h> > #include <linux/stringify.h> > #include <stdint.h> > > -#include "kvm_test_harness.h" Oof, that's ugly. We should fix this by doing what we should have done a long time ago: define _GNU_SOURCE in CFLAGS for all selftests. I'll post the below formally once I've smoke tested to make sure it doesn't break in weird ways. -- Subject: [PATCH] KVM: selftest: Define _GNU_SOURCE for all selftests code Define _GNU_SOURCE is the base CFLAGS instead of relying on selftests to manually #define _GNU_SOURCE, which is repetitive and error prone. E.g. kselftest_harness.h requres _GNU_SOURCE for asprintf(), but if a selftest includes kvm_test_harness.h after stdio.h, the include guards result in the effective version of stdio.h consumed by kvm_test_harness.h not defining asprintf(): In file included from x86_64/fix_hypercall_test.c:12: In file included from include/kvm_test_harness.h:11: ../kselftest_harness.h:1169:2: error: call to undeclared function 'asprintf'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1169 | asprintf(&test_name, "%s%s%s.%s", f->name, | ^ When including the rseq selftest's "library" code, #undef _GNU_SOURCE so that rseq.c controls whether or not it wants to build with _GNU_SOURCE. Reported-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Signed-off-by: Sean Christopherson <seanjc@google.com> --- tools/testing/selftests/kvm/Makefile | 4 ++-- tools/testing/selftests/kvm/aarch64/arch_timer.c | 2 -- .../testing/selftests/kvm/aarch64/page_fault_test.c | 1 - tools/testing/selftests/kvm/aarch64/psci_test.c | 3 --- tools/testing/selftests/kvm/aarch64/vgic_init.c | 1 - tools/testing/selftests/kvm/arch_timer.c | 3 --- tools/testing/selftests/kvm/demand_paging_test.c | 3 --- tools/testing/selftests/kvm/dirty_log_test.c | 3 --- tools/testing/selftests/kvm/guest_memfd_test.c | 2 -- tools/testing/selftests/kvm/hardware_disable_test.c | 3 --- tools/testing/selftests/kvm/include/kvm_util_base.h | 12 ++++++------ .../testing/selftests/kvm/include/userfaultfd_util.h | 3 --- tools/testing/selftests/kvm/kvm_binary_stats_test.c | 2 -- tools/testing/selftests/kvm/kvm_create_max_vcpus.c | 2 -- tools/testing/selftests/kvm/kvm_page_table_test.c | 3 --- tools/testing/selftests/kvm/lib/assert.c | 3 --- tools/testing/selftests/kvm/lib/kvm_util.c | 2 -- tools/testing/selftests/kvm/lib/memstress.c | 2 -- tools/testing/selftests/kvm/lib/test_util.c | 2 -- tools/testing/selftests/kvm/lib/userfaultfd_util.c | 3 --- tools/testing/selftests/kvm/lib/x86_64/sev.c | 1 - tools/testing/selftests/kvm/max_guest_memory_test.c | 2 -- .../selftests/kvm/memslot_modification_stress_test.c | 3 --- tools/testing/selftests/kvm/riscv/arch_timer.c | 3 --- tools/testing/selftests/kvm/rseq_test.c | 12 +++++++++--- tools/testing/selftests/kvm/s390x/cmma_test.c | 2 -- tools/testing/selftests/kvm/s390x/sync_regs_test.c | 2 -- tools/testing/selftests/kvm/set_memory_region_test.c | 1 - tools/testing/selftests/kvm/steal_time.c | 1 - tools/testing/selftests/kvm/x86_64/amx_test.c | 2 -- .../kvm/x86_64/exit_on_emulation_failure_test.c | 3 --- tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c | 2 -- tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c | 2 -- tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c | 1 - tools/testing/selftests/kvm/x86_64/hyperv_ipi.c | 2 -- tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c | 1 - .../testing/selftests/kvm/x86_64/hyperv_tlb_flush.c | 2 -- .../selftests/kvm/x86_64/nested_exceptions_test.c | 2 -- .../selftests/kvm/x86_64/nx_huge_pages_test.c | 3 --- .../selftests/kvm/x86_64/platform_info_test.c | 2 -- .../testing/selftests/kvm/x86_64/pmu_counters_test.c | 2 -- .../selftests/kvm/x86_64/pmu_event_filter_test.c | 3 --- .../kvm/x86_64/private_mem_conversions_test.c | 1 - tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c | 1 - tools/testing/selftests/kvm/x86_64/set_sregs_test.c | 1 - .../kvm/x86_64/smaller_maxphyaddr_emulation_test.c | 3 --- tools/testing/selftests/kvm/x86_64/smm_test.c | 1 - tools/testing/selftests/kvm/x86_64/state_test.c | 1 - tools/testing/selftests/kvm/x86_64/sync_regs_test.c | 2 -- .../selftests/kvm/x86_64/ucna_injection_test.c | 2 -- .../selftests/kvm/x86_64/userspace_msr_exit_test.c | 2 -- .../selftests/kvm/x86_64/vmx_dirty_log_test.c | 3 --- .../testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c | 1 - .../selftests/kvm/x86_64/vmx_preemption_timer_test.c | 1 - tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c | 2 -- .../testing/selftests/kvm/x86_64/xapic_state_test.c | 1 - tools/testing/selftests/kvm/x86_64/xss_msr_test.c | 2 -- 57 files changed, 17 insertions(+), 120 deletions(-) diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 741c7dc16afc..4f30296e0bbb 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -225,8 +225,8 @@ LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include endif CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \ -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT \ - -fno-builtin-memcmp -fno-builtin-memcpy -fno-builtin-memset \ - -fno-builtin-strnlen \ + -D_GNU_SOURCE -fno-builtin-memcmp -fno-builtin-memcpy \ + -fno-builtin-memset -fno-builtin-strnlen \ -fno-stack-protector -fno-PIE -I$(LINUX_TOOL_INCLUDE) \ -I$(LINUX_TOOL_ARCH_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude \ -I$(<D) -Iinclude/$(ARCH_DIR) -I ../rseq -I.. $(EXTRA_CFLAGS) \ diff --git a/tools/testing/selftests/kvm/aarch64/arch_timer.c b/tools/testing/selftests/kvm/aarch64/arch_timer.c index 4eaba83cdcf3..5369959e9fc2 100644 --- a/tools/testing/selftests/kvm/aarch64/arch_timer.c +++ b/tools/testing/selftests/kvm/aarch64/arch_timer.c @@ -5,8 +5,6 @@ * * Copyright (c) 2021, Google LLC. */ -#define _GNU_SOURCE - #include "arch_timer.h" #include "delay.h" #include "gic.h" diff --git a/tools/testing/selftests/kvm/aarch64/page_fault_test.c b/tools/testing/selftests/kvm/aarch64/page_fault_test.c index a2a158e2c0b8..d29b08198b42 100644 --- a/tools/testing/selftests/kvm/aarch64/page_fault_test.c +++ b/tools/testing/selftests/kvm/aarch64/page_fault_test.c @@ -7,7 +7,6 @@ * hugetlbfs with a hole). It checks that the expected handling method is * called (e.g., uffd faults with the right address and write/read flag). */ -#define _GNU_SOURCE #include <linux/bitmap.h> #include <fcntl.h> #include <test_util.h> diff --git a/tools/testing/selftests/kvm/aarch64/psci_test.c b/tools/testing/selftests/kvm/aarch64/psci_test.c index 9b004905d1d3..1c8c6f0c1ca3 100644 --- a/tools/testing/selftests/kvm/aarch64/psci_test.c +++ b/tools/testing/selftests/kvm/aarch64/psci_test.c @@ -10,9 +10,6 @@ * - A test for KVM's handling of PSCI SYSTEM_SUSPEND and the associated * KVM_SYSTEM_EVENT_SUSPEND UAPI. */ - -#define _GNU_SOURCE - #include <linux/psci.h> #include "kvm_util.h" diff --git a/tools/testing/selftests/kvm/aarch64/vgic_init.c b/tools/testing/selftests/kvm/aarch64/vgic_init.c index eef816b80993..e93022870cac 100644 --- a/tools/testing/selftests/kvm/aarch64/vgic_init.c +++ b/tools/testing/selftests/kvm/aarch64/vgic_init.c @@ -4,7 +4,6 @@ * * Copyright (C) 2020, Red Hat, Inc. */ -#define _GNU_SOURCE #include <linux/kernel.h> #include <sys/syscall.h> #include <asm/kvm.h> diff --git a/tools/testing/selftests/kvm/arch_timer.c b/tools/testing/selftests/kvm/arch_timer.c index ae1f1a6d8312..fcebd8d81ce4 100644 --- a/tools/testing/selftests/kvm/arch_timer.c +++ b/tools/testing/selftests/kvm/arch_timer.c @@ -19,9 +19,6 @@ * * Copyright (c) 2021, Google LLC. */ - -#define _GNU_SOURCE - #include <stdlib.h> #include <pthread.h> #include <linux/sizes.h> diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c index 056ff1c87345..bc5c4ada5f0d 100644 --- a/tools/testing/selftests/kvm/demand_paging_test.c +++ b/tools/testing/selftests/kvm/demand_paging_test.c @@ -6,9 +6,6 @@ * Copyright (C) 2018, Red Hat, Inc. * Copyright (C) 2019, Google, Inc. */ - -#define _GNU_SOURCE /* for pipe2 */ - #include <inttypes.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c index eaad5b20854c..bf1ebc29f22a 100644 --- a/tools/testing/selftests/kvm/dirty_log_test.c +++ b/tools/testing/selftests/kvm/dirty_log_test.c @@ -4,9 +4,6 @@ * * Copyright (C) 2018, Red Hat, Inc. */ - -#define _GNU_SOURCE /* for program_invocation_name */ - #include <stdio.h> #include <stdlib.h> #include <pthread.h> diff --git a/tools/testing/selftests/kvm/guest_memfd_test.c b/tools/testing/selftests/kvm/guest_memfd_test.c index 92eae206baa6..309fe84b84ad 100644 --- a/tools/testing/selftests/kvm/guest_memfd_test.c +++ b/tools/testing/selftests/kvm/guest_memfd_test.c @@ -4,8 +4,6 @@ * * Author: Chao Peng <chao.p.peng@linux.intel.com> */ - -#define _GNU_SOURCE #include <stdlib.h> #include <string.h> #include <unistd.h> diff --git a/tools/testing/selftests/kvm/hardware_disable_test.c b/tools/testing/selftests/kvm/hardware_disable_test.c index decc521fc760..bce73bcb973c 100644 --- a/tools/testing/selftests/kvm/hardware_disable_test.c +++ b/tools/testing/selftests/kvm/hardware_disable_test.c @@ -4,9 +4,6 @@ * kvm_arch_hardware_disable is called and it attempts to unregister the user * return notifiers. */ - -#define _GNU_SOURCE - #include <fcntl.h> #include <pthread.h> #include <semaphore.h> diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 3e0db283a46a..0c004036309d 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -27,12 +27,12 @@ /* * Provide a version of static_assert() that is guaranteed to have an optional - * message param. If _ISOC11_SOURCE is defined, glibc (/usr/include/assert.h) - * #undefs and #defines static_assert() as a direct alias to _Static_assert(), - * i.e. effectively makes the message mandatory. Many KVM selftests #define - * _GNU_SOURCE for various reasons, and _GNU_SOURCE implies _ISOC11_SOURCE. As - * a result, static_assert() behavior is non-deterministic and may or may not - * require a message depending on #include order. + * message param. _GNU_SOURCE is defined for all KVM selftests, _GNU_SOURCE + * implies _ISOC11_SOURCE, and if _ISOC11_SOURCE is defined, glibc #undefs and + * #defines static_assert() as a direct alias to _Static_assert() (see + * usr/include/assert.h). Define a custom macro instead of redefining + * static_assert() to avoid creating non-deterministic behavior that is + * dependent on include order. */ #define __kvm_static_assert(expr, msg, ...) _Static_assert(expr, msg) #define kvm_static_assert(expr, ...) __kvm_static_assert(expr, ##__VA_ARGS__, #expr) diff --git a/tools/testing/selftests/kvm/include/userfaultfd_util.h b/tools/testing/selftests/kvm/include/userfaultfd_util.h index 24f2cc5f4292..60f7f9d435dc 100644 --- a/tools/testing/selftests/kvm/include/userfaultfd_util.h +++ b/tools/testing/selftests/kvm/include/userfaultfd_util.h @@ -5,9 +5,6 @@ * Copyright (C) 2018, Red Hat, Inc. * Copyright (C) 2019-2022 Google LLC */ - -#define _GNU_SOURCE /* for pipe2 */ - #include <inttypes.h> #include <time.h> #include <pthread.h> diff --git a/tools/testing/selftests/kvm/kvm_binary_stats_test.c b/tools/testing/selftests/kvm/kvm_binary_stats_test.c index 698c1cfa3111..f02355c3c4c2 100644 --- a/tools/testing/selftests/kvm/kvm_binary_stats_test.c +++ b/tools/testing/selftests/kvm/kvm_binary_stats_test.c @@ -6,8 +6,6 @@ * * Test the fd-based interface for KVM statistics. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/kvm_create_max_vcpus.c b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c index b9e23265e4b3..c78f34699f73 100644 --- a/tools/testing/selftests/kvm/kvm_create_max_vcpus.c +++ b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c @@ -6,8 +6,6 @@ * * Test for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_VCPU_ID. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/kvm_page_table_test.c b/tools/testing/selftests/kvm/kvm_page_table_test.c index e0ba97ac1c56..7759c685086b 100644 --- a/tools/testing/selftests/kvm/kvm_page_table_test.c +++ b/tools/testing/selftests/kvm/kvm_page_table_test.c @@ -8,9 +8,6 @@ * page size have been pre-allocated on your system, if you are planning to * use hugepages to back the guest memory for testing. */ - -#define _GNU_SOURCE /* for program_invocation_name */ - #include <stdio.h> #include <stdlib.h> #include <time.h> diff --git a/tools/testing/selftests/kvm/lib/assert.c b/tools/testing/selftests/kvm/lib/assert.c index 2bd25b191d15..b49690658c60 100644 --- a/tools/testing/selftests/kvm/lib/assert.c +++ b/tools/testing/selftests/kvm/lib/assert.c @@ -4,9 +4,6 @@ * * Copyright (C) 2018, Google LLC. */ - -#define _GNU_SOURCE /* for getline(3) and strchrnul(3)*/ - #include "test_util.h" #include <execinfo.h> diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index b2262b5fad9e..1eaf001d0ad4 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -4,8 +4,6 @@ * * Copyright (C) 2018, Google LLC. */ - -#define _GNU_SOURCE /* for program_invocation_name */ #include "test_util.h" #include "kvm_util.h" #include "processor.h" diff --git a/tools/testing/selftests/kvm/lib/memstress.c b/tools/testing/selftests/kvm/lib/memstress.c index cf2c73971308..555e3932e529 100644 --- a/tools/testing/selftests/kvm/lib/memstress.c +++ b/tools/testing/selftests/kvm/lib/memstress.c @@ -2,8 +2,6 @@ /* * Copyright (C) 2020, Google LLC. */ -#define _GNU_SOURCE - #include <inttypes.h> #include <linux/bitmap.h> diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c index 5a8f8becb129..8ed0b74ae837 100644 --- a/tools/testing/selftests/kvm/lib/test_util.c +++ b/tools/testing/selftests/kvm/lib/test_util.c @@ -4,8 +4,6 @@ * * Copyright (C) 2020, Google LLC. */ - -#define _GNU_SOURCE #include <stdio.h> #include <stdarg.h> #include <assert.h> diff --git a/tools/testing/selftests/kvm/lib/userfaultfd_util.c b/tools/testing/selftests/kvm/lib/userfaultfd_util.c index 0ba866c4af69..7c9de8414462 100644 --- a/tools/testing/selftests/kvm/lib/userfaultfd_util.c +++ b/tools/testing/selftests/kvm/lib/userfaultfd_util.c @@ -6,9 +6,6 @@ * Copyright (C) 2018, Red Hat, Inc. * Copyright (C) 2019-2022 Google LLC */ - -#define _GNU_SOURCE /* for pipe2 */ - #include <inttypes.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/lib/x86_64/sev.c b/tools/testing/selftests/kvm/lib/x86_64/sev.c index e248d3364b9c..e83809febae1 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/sev.c +++ b/tools/testing/selftests/kvm/lib/x86_64/sev.c @@ -1,5 +1,4 @@ // SPDX-License-Identifier: GPL-2.0-only -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <stdint.h> #include <stdbool.h> diff --git a/tools/testing/selftests/kvm/max_guest_memory_test.c b/tools/testing/selftests/kvm/max_guest_memory_test.c index 6628dc4dda89..9b7fc3908be6 100644 --- a/tools/testing/selftests/kvm/max_guest_memory_test.c +++ b/tools/testing/selftests/kvm/max_guest_memory_test.c @@ -1,6 +1,4 @@ // SPDX-License-Identifier: GPL-2.0 -#define _GNU_SOURCE - #include <stdio.h> #include <stdlib.h> #include <pthread.h> diff --git a/tools/testing/selftests/kvm/memslot_modification_stress_test.c b/tools/testing/selftests/kvm/memslot_modification_stress_test.c index 156361966612..05fcf902e067 100644 --- a/tools/testing/selftests/kvm/memslot_modification_stress_test.c +++ b/tools/testing/selftests/kvm/memslot_modification_stress_test.c @@ -6,9 +6,6 @@ * Copyright (C) 2018, Red Hat, Inc. * Copyright (C) 2020, Google, Inc. */ - -#define _GNU_SOURCE /* for program_invocation_name */ - #include <stdio.h> #include <stdlib.h> #include <sys/syscall.h> diff --git a/tools/testing/selftests/kvm/riscv/arch_timer.c b/tools/testing/selftests/kvm/riscv/arch_timer.c index 0f9cabd99fd4..4b5004ef9c6b 100644 --- a/tools/testing/selftests/kvm/riscv/arch_timer.c +++ b/tools/testing/selftests/kvm/riscv/arch_timer.c @@ -7,9 +7,6 @@ * * Copyright (c) 2024, Intel Corporation. */ - -#define _GNU_SOURCE - #include "arch_timer.h" #include "kvm_util.h" #include "processor.h" diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c index 28f97fb52044..0728b15b5d3a 100644 --- a/tools/testing/selftests/kvm/rseq_test.c +++ b/tools/testing/selftests/kvm/rseq_test.c @@ -1,5 +1,13 @@ // SPDX-License-Identifier: GPL-2.0-only -#define _GNU_SOURCE /* for program_invocation_short_name */ + +/* + * Include rseq.c without _GNU_SOURCE defined, before including any headers, so + * that rseq.c is compiled with its configuration, not KVM selftests' config. + */ +#undef _GNU_SOURCE +#include "../rseq/rseq.c" +#define _GNU_SOURCE + #include <errno.h> #include <fcntl.h> #include <pthread.h> @@ -20,8 +28,6 @@ #include "processor.h" #include "test_util.h" -#include "../rseq/rseq.c" - /* * Any bug related to task migration is likely to be timing-dependent; perform * a large number of migrations to reduce the odds of a false negative. diff --git a/tools/testing/selftests/kvm/s390x/cmma_test.c b/tools/testing/selftests/kvm/s390x/cmma_test.c index 626a2b8a2037..84ba79c42ab1 100644 --- a/tools/testing/selftests/kvm/s390x/cmma_test.c +++ b/tools/testing/selftests/kvm/s390x/cmma_test.c @@ -7,8 +7,6 @@ * Authors: * Nico Boehr <nrb@linux.ibm.com> */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/s390x/sync_regs_test.c b/tools/testing/selftests/kvm/s390x/sync_regs_test.c index 43fb25ddc3ec..53def355ccba 100644 --- a/tools/testing/selftests/kvm/s390x/sync_regs_test.c +++ b/tools/testing/selftests/kvm/s390x/sync_regs_test.c @@ -10,8 +10,6 @@ * * Test expected behavior of the KVM_CAP_SYNC_REGS functionality. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c index 06b43ed23580..4a436a40e4b0 100644 --- a/tools/testing/selftests/kvm/set_memory_region_test.c +++ b/tools/testing/selftests/kvm/set_memory_region_test.c @@ -1,5 +1,4 @@ // SPDX-License-Identifier: GPL-2.0 -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <pthread.h> #include <sched.h> diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c index 4be5a1ffa06a..b6938bd2442c 100644 --- a/tools/testing/selftests/kvm/steal_time.c +++ b/tools/testing/selftests/kvm/steal_time.c @@ -4,7 +4,6 @@ * * Copyright (C) 2020, Red Hat, Inc. */ -#define _GNU_SOURCE #include <stdio.h> #include <time.h> #include <sched.h> diff --git a/tools/testing/selftests/kvm/x86_64/amx_test.c b/tools/testing/selftests/kvm/x86_64/amx_test.c index eae521f050e0..8e5713e36d4b 100644 --- a/tools/testing/selftests/kvm/x86_64/amx_test.c +++ b/tools/testing/selftests/kvm/x86_64/amx_test.c @@ -6,8 +6,6 @@ * * Tests for amx #NM exception and save/restore. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c b/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c index 6c2e5e0ceb1f..9c21b6bccc38 100644 --- a/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c +++ b/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c @@ -4,9 +4,6 @@ * * Test for KVM_CAP_EXIT_ON_EMULATION_FAILURE. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ - #include "flds_emulation.h" #include "test_util.h" diff --git a/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c b/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c index df351ae17029..10b1b0ba374e 100644 --- a/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c +++ b/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c @@ -2,8 +2,6 @@ /* * Copyright (C) 2023, Google LLC. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <sys/ioctl.h> #include "test_util.h" diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c index 5c27efbf405e..4f5881d4ef66 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c @@ -7,8 +7,6 @@ * This work is licensed under the terms of the GNU GPL, version 2. * */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c b/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c index 4c7257ecd2a6..4f3f3a9b038b 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c @@ -4,7 +4,6 @@ * * Tests for Enlightened VMCS, including nested guest state. */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c b/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c index f1617762c22f..8206f5ef42dd 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c @@ -5,8 +5,6 @@ * Copyright (C) 2022, Red Hat, Inc. * */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <pthread.h> #include <inttypes.h> diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c b/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c index c9b18707edc0..b987a3d79715 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c @@ -4,7 +4,6 @@ * * Tests for Hyper-V extensions to SVM. */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c b/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c index 05b56095cf76..077cd0ec3040 100644 --- a/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c +++ b/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c @@ -5,8 +5,6 @@ * Copyright (C) 2022, Red Hat, Inc. * */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <asm/barrier.h> #include <pthread.h> #include <inttypes.h> diff --git a/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c b/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c index 3670331adf21..3eb0313ffa39 100644 --- a/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c +++ b/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c @@ -1,6 +1,4 @@ // SPDX-License-Identifier: GPL-2.0-only -#define _GNU_SOURCE /* for program_invocation_short_name */ - #include "test_util.h" #include "kvm_util.h" #include "processor.h" diff --git a/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c b/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c index 17bbb96fc4df..e7efb2b35f8b 100644 --- a/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c +++ b/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c @@ -5,9 +5,6 @@ * * Copyright (C) 2022, Google LLC. */ - -#define _GNU_SOURCE - #include <fcntl.h> #include <stdint.h> #include <time.h> diff --git a/tools/testing/selftests/kvm/x86_64/platform_info_test.c b/tools/testing/selftests/kvm/x86_64/platform_info_test.c index 87011965dc41..2165b1ad8b38 100644 --- a/tools/testing/selftests/kvm/x86_64/platform_info_test.c +++ b/tools/testing/selftests/kvm/x86_64/platform_info_test.c @@ -9,8 +9,6 @@ * Verifies expected behavior of controlling guest access to * MSR_PLATFORM_INFO. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c b/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c index 29609b52f8fa..842d87c8d6b6 100644 --- a/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c +++ b/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c @@ -2,8 +2,6 @@ /* * Copyright (C) 2023, Tencent, Inc. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <x86intrin.h> #include "pmu.h" diff --git a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c index 3c85d1ae9893..5ce53b8c46e0 100644 --- a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c +++ b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c @@ -9,9 +9,6 @@ * Verifies the expected behavior of allow lists and deny lists for * virtual PMU events. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ - #include "kvm_util.h" #include "pmu.h" #include "processor.h" diff --git a/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c b/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c index e0f642d2a3c4..82a8d88b5338 100644 --- a/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c +++ b/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c @@ -2,7 +2,6 @@ /* * Copyright (C) 2022, Google LLC. */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <limits.h> #include <pthread.h> diff --git a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c index 366cf18600bc..d691d86e5bc3 100644 --- a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c +++ b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c @@ -4,7 +4,6 @@ * * Copyright (C) 2020, Red Hat, Inc. */ -#define _GNU_SOURCE /* for program_invocation_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/set_sregs_test.c b/tools/testing/selftests/kvm/x86_64/set_sregs_test.c index 3610981d9162..c021c0795a96 100644 --- a/tools/testing/selftests/kvm/x86_64/set_sregs_test.c +++ b/tools/testing/selftests/kvm/x86_64/set_sregs_test.c @@ -10,7 +10,6 @@ * That bug allowed a user-mode program that called the KVM_SET_SREGS * ioctl to put a VCPU's local APIC into an invalid state. */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c b/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c index 416207c38a17..362be40fc00d 100644 --- a/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c +++ b/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c @@ -5,9 +5,6 @@ * Test that KVM emulates instructions in response to EPT violations when * allow_smaller_maxphyaddr is enabled and guest.MAXPHYADDR < host.MAXPHYADDR. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ - #include "flds_emulation.h" #include "test_util.h" diff --git a/tools/testing/selftests/kvm/x86_64/smm_test.c b/tools/testing/selftests/kvm/x86_64/smm_test.c index e18b86666e1f..55c88d664a94 100644 --- a/tools/testing/selftests/kvm/x86_64/smm_test.c +++ b/tools/testing/selftests/kvm/x86_64/smm_test.c @@ -4,7 +4,6 @@ * * Tests for SMM. */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/state_test.c b/tools/testing/selftests/kvm/x86_64/state_test.c index 88b58aab7207..1c756db329e5 100644 --- a/tools/testing/selftests/kvm/x86_64/state_test.c +++ b/tools/testing/selftests/kvm/x86_64/state_test.c @@ -6,7 +6,6 @@ * * Tests for vCPU state save/restore, including nested guest state. */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/sync_regs_test.c b/tools/testing/selftests/kvm/x86_64/sync_regs_test.c index adb5593daf48..8fa3948b0170 100644 --- a/tools/testing/selftests/kvm/x86_64/sync_regs_test.c +++ b/tools/testing/selftests/kvm/x86_64/sync_regs_test.c @@ -8,8 +8,6 @@ * including requesting an invalid register set, updates to/from values * in kvm_run.s.regs when kvm_valid_regs and kvm_dirty_regs are toggled. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c b/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c index dcbb3c29fb8e..abe71946941f 100644 --- a/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c +++ b/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c @@ -17,8 +17,6 @@ * delivered into the guest or not. * */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <pthread.h> #include <inttypes.h> #include <string.h> diff --git a/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c b/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c index f4f61a2d2464..53afbea4df88 100644 --- a/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c +++ b/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c @@ -4,8 +4,6 @@ * * Tests for exiting into userspace on registered MSRs */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <sys/ioctl.h> #include "kvm_test_harness.h" diff --git a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c index 7f6f5f23fb9b..a39cba19c058 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c @@ -4,9 +4,6 @@ * * Copyright (C) 2018, Red Hat, Inc. */ - -#define _GNU_SOURCE /* for program_invocation_name */ - #include <stdio.h> #include <stdlib.h> #include <linux/bitmap.h> diff --git a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c index ea0cb3cae0f7..3b93f262b797 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c @@ -10,7 +10,6 @@ * and check it can be retrieved with KVM_GET_MSR, also test * the invalid LBR formats are rejected. */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <sys/ioctl.h> #include <linux/bitmap.h> diff --git a/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c b/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c index affc32800158..00dd2ac07a61 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c @@ -9,7 +9,6 @@ * value instead of partially decayed timer value * */ -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c b/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c index 725c206ba0b9..c78e5f755116 100644 --- a/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c +++ b/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c @@ -19,8 +19,6 @@ * Migration is a command line option. When used on non-numa machines will * exit with error. Test is still usefull on non-numa for testing IPIs. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <getopt.h> #include <pthread.h> #include <inttypes.h> diff --git a/tools/testing/selftests/kvm/x86_64/xapic_state_test.c b/tools/testing/selftests/kvm/x86_64/xapic_state_test.c index ab75b873a4ad..69849acd95b0 100644 --- a/tools/testing/selftests/kvm/x86_64/xapic_state_test.c +++ b/tools/testing/selftests/kvm/x86_64/xapic_state_test.c @@ -1,5 +1,4 @@ // SPDX-License-Identifier: GPL-2.0-only -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <fcntl.h> #include <stdio.h> #include <stdlib.h> diff --git a/tools/testing/selftests/kvm/x86_64/xss_msr_test.c b/tools/testing/selftests/kvm/x86_64/xss_msr_test.c index 167c97abff1b..f331a4e9bae3 100644 --- a/tools/testing/selftests/kvm/x86_64/xss_msr_test.c +++ b/tools/testing/selftests/kvm/x86_64/xss_msr_test.c @@ -4,8 +4,6 @@ * * Tests for the IA32_XSS MSR. */ - -#define _GNU_SOURCE /* for program_invocation_short_name */ #include <sys/ioctl.h> #include "test_util.h" base-commit: 9f92c06e184074930174e469205f4e78338651f8 --
> Subject: [PATCH] KVM: selftest: Define _GNU_SOURCE for all selftests code > > Define _GNU_SOURCE is the base CFLAGS instead of relying on selftests to > manually #define _GNU_SOURCE, which is repetitive and error prone. E.g. > kselftest_harness.h requres _GNU_SOURCE for asprintf(), but if a selftest > includes kvm_test_harness.h after stdio.h, the include guards result in > the effective version of stdio.h consumed by kvm_test_harness.h not > defining asprintf(): > > In file included from x86_64/fix_hypercall_test.c:12: > In file included from include/kvm_test_harness.h:11: > ../kselftest_harness.h:1169:2: error: call to undeclared function > 'asprintf'; ISO C99 and later do not support implicit function declarations > [-Wimplicit-function-declaration] > 1169 | asprintf(&test_name, "%s%s%s.%s", f->name, > | ^ > > When including the rseq selftest's "library" code, #undef _GNU_SOURCE so > that rseq.c controls whether or not it wants to build with _GNU_SOURCE. > > Reported-by: Muhammad Usama Anjum <usama.anjum@collabora.com> > Signed-off-by: Sean Christopherson <seanjc@google.com> LGM Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> > --- > tools/testing/selftests/kvm/Makefile | 4 ++-- > tools/testing/selftests/kvm/aarch64/arch_timer.c | 2 -- > .../testing/selftests/kvm/aarch64/page_fault_test.c | 1 - > tools/testing/selftests/kvm/aarch64/psci_test.c | 3 --- > tools/testing/selftests/kvm/aarch64/vgic_init.c | 1 - > tools/testing/selftests/kvm/arch_timer.c | 3 --- > tools/testing/selftests/kvm/demand_paging_test.c | 3 --- > tools/testing/selftests/kvm/dirty_log_test.c | 3 --- > tools/testing/selftests/kvm/guest_memfd_test.c | 2 -- > tools/testing/selftests/kvm/hardware_disable_test.c | 3 --- > tools/testing/selftests/kvm/include/kvm_util_base.h | 12 ++++++------ > .../testing/selftests/kvm/include/userfaultfd_util.h | 3 --- > tools/testing/selftests/kvm/kvm_binary_stats_test.c | 2 -- > tools/testing/selftests/kvm/kvm_create_max_vcpus.c | 2 -- > tools/testing/selftests/kvm/kvm_page_table_test.c | 3 --- > tools/testing/selftests/kvm/lib/assert.c | 3 --- > tools/testing/selftests/kvm/lib/kvm_util.c | 2 -- > tools/testing/selftests/kvm/lib/memstress.c | 2 -- > tools/testing/selftests/kvm/lib/test_util.c | 2 -- > tools/testing/selftests/kvm/lib/userfaultfd_util.c | 3 --- > tools/testing/selftests/kvm/lib/x86_64/sev.c | 1 - > tools/testing/selftests/kvm/max_guest_memory_test.c | 2 -- > .../selftests/kvm/memslot_modification_stress_test.c | 3 --- > tools/testing/selftests/kvm/riscv/arch_timer.c | 3 --- > tools/testing/selftests/kvm/rseq_test.c | 12 +++++++++--- > tools/testing/selftests/kvm/s390x/cmma_test.c | 2 -- > tools/testing/selftests/kvm/s390x/sync_regs_test.c | 2 -- > tools/testing/selftests/kvm/set_memory_region_test.c | 1 - > tools/testing/selftests/kvm/steal_time.c | 1 - > tools/testing/selftests/kvm/x86_64/amx_test.c | 2 -- > .../kvm/x86_64/exit_on_emulation_failure_test.c | 3 --- > tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c | 2 -- > tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c | 2 -- > tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c | 1 - > tools/testing/selftests/kvm/x86_64/hyperv_ipi.c | 2 -- > tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c | 1 - > .../testing/selftests/kvm/x86_64/hyperv_tlb_flush.c | 2 -- > .../selftests/kvm/x86_64/nested_exceptions_test.c | 2 -- > .../selftests/kvm/x86_64/nx_huge_pages_test.c | 3 --- > .../selftests/kvm/x86_64/platform_info_test.c | 2 -- > .../testing/selftests/kvm/x86_64/pmu_counters_test.c | 2 -- > .../selftests/kvm/x86_64/pmu_event_filter_test.c | 3 --- > .../kvm/x86_64/private_mem_conversions_test.c | 1 - > tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c | 1 - > tools/testing/selftests/kvm/x86_64/set_sregs_test.c | 1 - > .../kvm/x86_64/smaller_maxphyaddr_emulation_test.c | 3 --- > tools/testing/selftests/kvm/x86_64/smm_test.c | 1 - > tools/testing/selftests/kvm/x86_64/state_test.c | 1 - > tools/testing/selftests/kvm/x86_64/sync_regs_test.c | 2 -- > .../selftests/kvm/x86_64/ucna_injection_test.c | 2 -- > .../selftests/kvm/x86_64/userspace_msr_exit_test.c | 2 -- > .../selftests/kvm/x86_64/vmx_dirty_log_test.c | 3 --- > .../testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c | 1 - > .../selftests/kvm/x86_64/vmx_preemption_timer_test.c | 1 - > tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c | 2 -- > .../testing/selftests/kvm/x86_64/xapic_state_test.c | 1 - > tools/testing/selftests/kvm/x86_64/xss_msr_test.c | 2 -- > 57 files changed, 17 insertions(+), 120 deletions(-) > > diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile > index 741c7dc16afc..4f30296e0bbb 100644 > --- a/tools/testing/selftests/kvm/Makefile > +++ b/tools/testing/selftests/kvm/Makefile > @@ -225,8 +225,8 @@ LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include > endif > CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \ > -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT \ > - -fno-builtin-memcmp -fno-builtin-memcpy -fno-builtin-memset \ > - -fno-builtin-strnlen \ > + -D_GNU_SOURCE -fno-builtin-memcmp -fno-builtin-memcpy \ > + -fno-builtin-memset -fno-builtin-strnlen \ > -fno-stack-protector -fno-PIE -I$(LINUX_TOOL_INCLUDE) \ > -I$(LINUX_TOOL_ARCH_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude \ > -I$(<D) -Iinclude/$(ARCH_DIR) -I ../rseq -I.. $(EXTRA_CFLAGS) \ > diff --git a/tools/testing/selftests/kvm/aarch64/arch_timer.c b/tools/testing/selftests/kvm/aarch64/arch_timer.c > index 4eaba83cdcf3..5369959e9fc2 100644 > --- a/tools/testing/selftests/kvm/aarch64/arch_timer.c > +++ b/tools/testing/selftests/kvm/aarch64/arch_timer.c > @@ -5,8 +5,6 @@ > * > * Copyright (c) 2021, Google LLC. > */ > -#define _GNU_SOURCE > - > #include "arch_timer.h" > #include "delay.h" > #include "gic.h" > diff --git a/tools/testing/selftests/kvm/aarch64/page_fault_test.c b/tools/testing/selftests/kvm/aarch64/page_fault_test.c > index a2a158e2c0b8..d29b08198b42 100644 > --- a/tools/testing/selftests/kvm/aarch64/page_fault_test.c > +++ b/tools/testing/selftests/kvm/aarch64/page_fault_test.c > @@ -7,7 +7,6 @@ > * hugetlbfs with a hole). It checks that the expected handling method is > * called (e.g., uffd faults with the right address and write/read flag). > */ > -#define _GNU_SOURCE > #include <linux/bitmap.h> > #include <fcntl.h> > #include <test_util.h> > diff --git a/tools/testing/selftests/kvm/aarch64/psci_test.c b/tools/testing/selftests/kvm/aarch64/psci_test.c > index 9b004905d1d3..1c8c6f0c1ca3 100644 > --- a/tools/testing/selftests/kvm/aarch64/psci_test.c > +++ b/tools/testing/selftests/kvm/aarch64/psci_test.c > @@ -10,9 +10,6 @@ > * - A test for KVM's handling of PSCI SYSTEM_SUSPEND and the associated > * KVM_SYSTEM_EVENT_SUSPEND UAPI. > */ > - > -#define _GNU_SOURCE > - > #include <linux/psci.h> > > #include "kvm_util.h" > diff --git a/tools/testing/selftests/kvm/aarch64/vgic_init.c b/tools/testing/selftests/kvm/aarch64/vgic_init.c > index eef816b80993..e93022870cac 100644 > --- a/tools/testing/selftests/kvm/aarch64/vgic_init.c > +++ b/tools/testing/selftests/kvm/aarch64/vgic_init.c > @@ -4,7 +4,6 @@ > * > * Copyright (C) 2020, Red Hat, Inc. > */ > -#define _GNU_SOURCE > #include <linux/kernel.h> > #include <sys/syscall.h> > #include <asm/kvm.h> > diff --git a/tools/testing/selftests/kvm/arch_timer.c b/tools/testing/selftests/kvm/arch_timer.c > index ae1f1a6d8312..fcebd8d81ce4 100644 > --- a/tools/testing/selftests/kvm/arch_timer.c > +++ b/tools/testing/selftests/kvm/arch_timer.c > @@ -19,9 +19,6 @@ > * > * Copyright (c) 2021, Google LLC. > */ > - > -#define _GNU_SOURCE > - > #include <stdlib.h> > #include <pthread.h> > #include <linux/sizes.h> > diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c > index 056ff1c87345..bc5c4ada5f0d 100644 > --- a/tools/testing/selftests/kvm/demand_paging_test.c > +++ b/tools/testing/selftests/kvm/demand_paging_test.c > @@ -6,9 +6,6 @@ > * Copyright (C) 2018, Red Hat, Inc. > * Copyright (C) 2019, Google, Inc. > */ > - > -#define _GNU_SOURCE /* for pipe2 */ > - > #include <inttypes.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c > index eaad5b20854c..bf1ebc29f22a 100644 > --- a/tools/testing/selftests/kvm/dirty_log_test.c > +++ b/tools/testing/selftests/kvm/dirty_log_test.c > @@ -4,9 +4,6 @@ > * > * Copyright (C) 2018, Red Hat, Inc. > */ > - > -#define _GNU_SOURCE /* for program_invocation_name */ > - > #include <stdio.h> > #include <stdlib.h> > #include <pthread.h> > diff --git a/tools/testing/selftests/kvm/guest_memfd_test.c b/tools/testing/selftests/kvm/guest_memfd_test.c > index 92eae206baa6..309fe84b84ad 100644 > --- a/tools/testing/selftests/kvm/guest_memfd_test.c > +++ b/tools/testing/selftests/kvm/guest_memfd_test.c > @@ -4,8 +4,6 @@ > * > * Author: Chao Peng <chao.p.peng@linux.intel.com> > */ > - > -#define _GNU_SOURCE > #include <stdlib.h> > #include <string.h> > #include <unistd.h> > diff --git a/tools/testing/selftests/kvm/hardware_disable_test.c b/tools/testing/selftests/kvm/hardware_disable_test.c > index decc521fc760..bce73bcb973c 100644 > --- a/tools/testing/selftests/kvm/hardware_disable_test.c > +++ b/tools/testing/selftests/kvm/hardware_disable_test.c > @@ -4,9 +4,6 @@ > * kvm_arch_hardware_disable is called and it attempts to unregister the user > * return notifiers. > */ > - > -#define _GNU_SOURCE > - > #include <fcntl.h> > #include <pthread.h> > #include <semaphore.h> > diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h > index 3e0db283a46a..0c004036309d 100644 > --- a/tools/testing/selftests/kvm/include/kvm_util_base.h > +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h > @@ -27,12 +27,12 @@ > > /* > * Provide a version of static_assert() that is guaranteed to have an optional > - * message param. If _ISOC11_SOURCE is defined, glibc (/usr/include/assert.h) > - * #undefs and #defines static_assert() as a direct alias to _Static_assert(), > - * i.e. effectively makes the message mandatory. Many KVM selftests #define > - * _GNU_SOURCE for various reasons, and _GNU_SOURCE implies _ISOC11_SOURCE. As > - * a result, static_assert() behavior is non-deterministic and may or may not > - * require a message depending on #include order. > + * message param. _GNU_SOURCE is defined for all KVM selftests, _GNU_SOURCE > + * implies _ISOC11_SOURCE, and if _ISOC11_SOURCE is defined, glibc #undefs and > + * #defines static_assert() as a direct alias to _Static_assert() (see > + * usr/include/assert.h). Define a custom macro instead of redefining > + * static_assert() to avoid creating non-deterministic behavior that is > + * dependent on include order. > */ > #define __kvm_static_assert(expr, msg, ...) _Static_assert(expr, msg) > #define kvm_static_assert(expr, ...) __kvm_static_assert(expr, ##__VA_ARGS__, #expr) > diff --git a/tools/testing/selftests/kvm/include/userfaultfd_util.h b/tools/testing/selftests/kvm/include/userfaultfd_util.h > index 24f2cc5f4292..60f7f9d435dc 100644 > --- a/tools/testing/selftests/kvm/include/userfaultfd_util.h > +++ b/tools/testing/selftests/kvm/include/userfaultfd_util.h > @@ -5,9 +5,6 @@ > * Copyright (C) 2018, Red Hat, Inc. > * Copyright (C) 2019-2022 Google LLC > */ > - > -#define _GNU_SOURCE /* for pipe2 */ > - > #include <inttypes.h> > #include <time.h> > #include <pthread.h> > diff --git a/tools/testing/selftests/kvm/kvm_binary_stats_test.c b/tools/testing/selftests/kvm/kvm_binary_stats_test.c > index 698c1cfa3111..f02355c3c4c2 100644 > --- a/tools/testing/selftests/kvm/kvm_binary_stats_test.c > +++ b/tools/testing/selftests/kvm/kvm_binary_stats_test.c > @@ -6,8 +6,6 @@ > * > * Test the fd-based interface for KVM statistics. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/kvm_create_max_vcpus.c b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c > index b9e23265e4b3..c78f34699f73 100644 > --- a/tools/testing/selftests/kvm/kvm_create_max_vcpus.c > +++ b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c > @@ -6,8 +6,6 @@ > * > * Test for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_VCPU_ID. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/kvm_page_table_test.c b/tools/testing/selftests/kvm/kvm_page_table_test.c > index e0ba97ac1c56..7759c685086b 100644 > --- a/tools/testing/selftests/kvm/kvm_page_table_test.c > +++ b/tools/testing/selftests/kvm/kvm_page_table_test.c > @@ -8,9 +8,6 @@ > * page size have been pre-allocated on your system, if you are planning to > * use hugepages to back the guest memory for testing. > */ > - > -#define _GNU_SOURCE /* for program_invocation_name */ > - > #include <stdio.h> > #include <stdlib.h> > #include <time.h> > diff --git a/tools/testing/selftests/kvm/lib/assert.c b/tools/testing/selftests/kvm/lib/assert.c > index 2bd25b191d15..b49690658c60 100644 > --- a/tools/testing/selftests/kvm/lib/assert.c > +++ b/tools/testing/selftests/kvm/lib/assert.c > @@ -4,9 +4,6 @@ > * > * Copyright (C) 2018, Google LLC. > */ > - > -#define _GNU_SOURCE /* for getline(3) and strchrnul(3)*/ > - > #include "test_util.h" > > #include <execinfo.h> > diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c > index b2262b5fad9e..1eaf001d0ad4 100644 > --- a/tools/testing/selftests/kvm/lib/kvm_util.c > +++ b/tools/testing/selftests/kvm/lib/kvm_util.c > @@ -4,8 +4,6 @@ > * > * Copyright (C) 2018, Google LLC. > */ > - > -#define _GNU_SOURCE /* for program_invocation_name */ > #include "test_util.h" > #include "kvm_util.h" > #include "processor.h" > diff --git a/tools/testing/selftests/kvm/lib/memstress.c b/tools/testing/selftests/kvm/lib/memstress.c > index cf2c73971308..555e3932e529 100644 > --- a/tools/testing/selftests/kvm/lib/memstress.c > +++ b/tools/testing/selftests/kvm/lib/memstress.c > @@ -2,8 +2,6 @@ > /* > * Copyright (C) 2020, Google LLC. > */ > -#define _GNU_SOURCE > - > #include <inttypes.h> > #include <linux/bitmap.h> > > diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c > index 5a8f8becb129..8ed0b74ae837 100644 > --- a/tools/testing/selftests/kvm/lib/test_util.c > +++ b/tools/testing/selftests/kvm/lib/test_util.c > @@ -4,8 +4,6 @@ > * > * Copyright (C) 2020, Google LLC. > */ > - > -#define _GNU_SOURCE > #include <stdio.h> > #include <stdarg.h> > #include <assert.h> > diff --git a/tools/testing/selftests/kvm/lib/userfaultfd_util.c b/tools/testing/selftests/kvm/lib/userfaultfd_util.c > index 0ba866c4af69..7c9de8414462 100644 > --- a/tools/testing/selftests/kvm/lib/userfaultfd_util.c > +++ b/tools/testing/selftests/kvm/lib/userfaultfd_util.c > @@ -6,9 +6,6 @@ > * Copyright (C) 2018, Red Hat, Inc. > * Copyright (C) 2019-2022 Google LLC > */ > - > -#define _GNU_SOURCE /* for pipe2 */ > - > #include <inttypes.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/lib/x86_64/sev.c b/tools/testing/selftests/kvm/lib/x86_64/sev.c > index e248d3364b9c..e83809febae1 100644 > --- a/tools/testing/selftests/kvm/lib/x86_64/sev.c > +++ b/tools/testing/selftests/kvm/lib/x86_64/sev.c > @@ -1,5 +1,4 @@ > // SPDX-License-Identifier: GPL-2.0-only > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <stdint.h> > #include <stdbool.h> > > diff --git a/tools/testing/selftests/kvm/max_guest_memory_test.c b/tools/testing/selftests/kvm/max_guest_memory_test.c > index 6628dc4dda89..9b7fc3908be6 100644 > --- a/tools/testing/selftests/kvm/max_guest_memory_test.c > +++ b/tools/testing/selftests/kvm/max_guest_memory_test.c > @@ -1,6 +1,4 @@ > // SPDX-License-Identifier: GPL-2.0 > -#define _GNU_SOURCE > - > #include <stdio.h> > #include <stdlib.h> > #include <pthread.h> > diff --git a/tools/testing/selftests/kvm/memslot_modification_stress_test.c b/tools/testing/selftests/kvm/memslot_modification_stress_test.c > index 156361966612..05fcf902e067 100644 > --- a/tools/testing/selftests/kvm/memslot_modification_stress_test.c > +++ b/tools/testing/selftests/kvm/memslot_modification_stress_test.c > @@ -6,9 +6,6 @@ > * Copyright (C) 2018, Red Hat, Inc. > * Copyright (C) 2020, Google, Inc. > */ > - > -#define _GNU_SOURCE /* for program_invocation_name */ > - > #include <stdio.h> > #include <stdlib.h> > #include <sys/syscall.h> > diff --git a/tools/testing/selftests/kvm/riscv/arch_timer.c b/tools/testing/selftests/kvm/riscv/arch_timer.c > index 0f9cabd99fd4..4b5004ef9c6b 100644 > --- a/tools/testing/selftests/kvm/riscv/arch_timer.c > +++ b/tools/testing/selftests/kvm/riscv/arch_timer.c > @@ -7,9 +7,6 @@ > * > * Copyright (c) 2024, Intel Corporation. > */ > - > -#define _GNU_SOURCE > - > #include "arch_timer.h" > #include "kvm_util.h" > #include "processor.h" > diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c > index 28f97fb52044..0728b15b5d3a 100644 > --- a/tools/testing/selftests/kvm/rseq_test.c > +++ b/tools/testing/selftests/kvm/rseq_test.c > @@ -1,5 +1,13 @@ > // SPDX-License-Identifier: GPL-2.0-only > -#define _GNU_SOURCE /* for program_invocation_short_name */ > + > +/* > + * Include rseq.c without _GNU_SOURCE defined, before including any headers, so > + * that rseq.c is compiled with its configuration, not KVM selftests' config. > + */ > +#undef _GNU_SOURCE > +#include "../rseq/rseq.c" > +#define _GNU_SOURCE > + > #include <errno.h> > #include <fcntl.h> > #include <pthread.h> > @@ -20,8 +28,6 @@ > #include "processor.h" > #include "test_util.h" > > -#include "../rseq/rseq.c" > - > /* > * Any bug related to task migration is likely to be timing-dependent; perform > * a large number of migrations to reduce the odds of a false negative. > diff --git a/tools/testing/selftests/kvm/s390x/cmma_test.c b/tools/testing/selftests/kvm/s390x/cmma_test.c > index 626a2b8a2037..84ba79c42ab1 100644 > --- a/tools/testing/selftests/kvm/s390x/cmma_test.c > +++ b/tools/testing/selftests/kvm/s390x/cmma_test.c > @@ -7,8 +7,6 @@ > * Authors: > * Nico Boehr <nrb@linux.ibm.com> > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/s390x/sync_regs_test.c b/tools/testing/selftests/kvm/s390x/sync_regs_test.c > index 43fb25ddc3ec..53def355ccba 100644 > --- a/tools/testing/selftests/kvm/s390x/sync_regs_test.c > +++ b/tools/testing/selftests/kvm/s390x/sync_regs_test.c > @@ -10,8 +10,6 @@ > * > * Test expected behavior of the KVM_CAP_SYNC_REGS functionality. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c > index 06b43ed23580..4a436a40e4b0 100644 > --- a/tools/testing/selftests/kvm/set_memory_region_test.c > +++ b/tools/testing/selftests/kvm/set_memory_region_test.c > @@ -1,5 +1,4 @@ > // SPDX-License-Identifier: GPL-2.0 > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <pthread.h> > #include <sched.h> > diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c > index 4be5a1ffa06a..b6938bd2442c 100644 > --- a/tools/testing/selftests/kvm/steal_time.c > +++ b/tools/testing/selftests/kvm/steal_time.c > @@ -4,7 +4,6 @@ > * > * Copyright (C) 2020, Red Hat, Inc. > */ > -#define _GNU_SOURCE > #include <stdio.h> > #include <time.h> > #include <sched.h> > diff --git a/tools/testing/selftests/kvm/x86_64/amx_test.c b/tools/testing/selftests/kvm/x86_64/amx_test.c > index eae521f050e0..8e5713e36d4b 100644 > --- a/tools/testing/selftests/kvm/x86_64/amx_test.c > +++ b/tools/testing/selftests/kvm/x86_64/amx_test.c > @@ -6,8 +6,6 @@ > * > * Tests for amx #NM exception and save/restore. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c b/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c > index 6c2e5e0ceb1f..9c21b6bccc38 100644 > --- a/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c > +++ b/tools/testing/selftests/kvm/x86_64/exit_on_emulation_failure_test.c > @@ -4,9 +4,6 @@ > * > * Test for KVM_CAP_EXIT_ON_EMULATION_FAILURE. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > - > #include "flds_emulation.h" > > #include "test_util.h" > diff --git a/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c b/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c > index df351ae17029..10b1b0ba374e 100644 > --- a/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c > +++ b/tools/testing/selftests/kvm/x86_64/hwcr_msr_test.c > @@ -2,8 +2,6 @@ > /* > * Copyright (C) 2023, Google LLC. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <sys/ioctl.h> > > #include "test_util.h" > diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c > index 5c27efbf405e..4f5881d4ef66 100644 > --- a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c > +++ b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c > @@ -7,8 +7,6 @@ > * This work is licensed under the terms of the GNU GPL, version 2. > * > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c b/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c > index 4c7257ecd2a6..4f3f3a9b038b 100644 > --- a/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c > +++ b/tools/testing/selftests/kvm/x86_64/hyperv_evmcs.c > @@ -4,7 +4,6 @@ > * > * Tests for Enlightened VMCS, including nested guest state. > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c b/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c > index f1617762c22f..8206f5ef42dd 100644 > --- a/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c > +++ b/tools/testing/selftests/kvm/x86_64/hyperv_ipi.c > @@ -5,8 +5,6 @@ > * Copyright (C) 2022, Red Hat, Inc. > * > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <pthread.h> > #include <inttypes.h> > > diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c b/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c > index c9b18707edc0..b987a3d79715 100644 > --- a/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c > +++ b/tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c > @@ -4,7 +4,6 @@ > * > * Tests for Hyper-V extensions to SVM. > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c b/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c > index 05b56095cf76..077cd0ec3040 100644 > --- a/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c > +++ b/tools/testing/selftests/kvm/x86_64/hyperv_tlb_flush.c > @@ -5,8 +5,6 @@ > * Copyright (C) 2022, Red Hat, Inc. > * > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <asm/barrier.h> > #include <pthread.h> > #include <inttypes.h> > diff --git a/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c b/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c > index 3670331adf21..3eb0313ffa39 100644 > --- a/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c > +++ b/tools/testing/selftests/kvm/x86_64/nested_exceptions_test.c > @@ -1,6 +1,4 @@ > // SPDX-License-Identifier: GPL-2.0-only > -#define _GNU_SOURCE /* for program_invocation_short_name */ > - > #include "test_util.h" > #include "kvm_util.h" > #include "processor.h" > diff --git a/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c b/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c > index 17bbb96fc4df..e7efb2b35f8b 100644 > --- a/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c > +++ b/tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c > @@ -5,9 +5,6 @@ > * > * Copyright (C) 2022, Google LLC. > */ > - > -#define _GNU_SOURCE > - > #include <fcntl.h> > #include <stdint.h> > #include <time.h> > diff --git a/tools/testing/selftests/kvm/x86_64/platform_info_test.c b/tools/testing/selftests/kvm/x86_64/platform_info_test.c > index 87011965dc41..2165b1ad8b38 100644 > --- a/tools/testing/selftests/kvm/x86_64/platform_info_test.c > +++ b/tools/testing/selftests/kvm/x86_64/platform_info_test.c > @@ -9,8 +9,6 @@ > * Verifies expected behavior of controlling guest access to > * MSR_PLATFORM_INFO. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c b/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c > index 29609b52f8fa..842d87c8d6b6 100644 > --- a/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c > +++ b/tools/testing/selftests/kvm/x86_64/pmu_counters_test.c > @@ -2,8 +2,6 @@ > /* > * Copyright (C) 2023, Tencent, Inc. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <x86intrin.h> > > #include "pmu.h" > diff --git a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c > index 3c85d1ae9893..5ce53b8c46e0 100644 > --- a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c > +++ b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c > @@ -9,9 +9,6 @@ > * Verifies the expected behavior of allow lists and deny lists for > * virtual PMU events. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > - > #include "kvm_util.h" > #include "pmu.h" > #include "processor.h" > diff --git a/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c b/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c > index e0f642d2a3c4..82a8d88b5338 100644 > --- a/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c > +++ b/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.c > @@ -2,7 +2,6 @@ > /* > * Copyright (C) 2022, Google LLC. > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <limits.h> > #include <pthread.h> > diff --git a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c > index 366cf18600bc..d691d86e5bc3 100644 > --- a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c > +++ b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c > @@ -4,7 +4,6 @@ > * > * Copyright (C) 2020, Red Hat, Inc. > */ > -#define _GNU_SOURCE /* for program_invocation_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/set_sregs_test.c b/tools/testing/selftests/kvm/x86_64/set_sregs_test.c > index 3610981d9162..c021c0795a96 100644 > --- a/tools/testing/selftests/kvm/x86_64/set_sregs_test.c > +++ b/tools/testing/selftests/kvm/x86_64/set_sregs_test.c > @@ -10,7 +10,6 @@ > * That bug allowed a user-mode program that called the KVM_SET_SREGS > * ioctl to put a VCPU's local APIC into an invalid state. > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c b/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c > index 416207c38a17..362be40fc00d 100644 > --- a/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c > +++ b/tools/testing/selftests/kvm/x86_64/smaller_maxphyaddr_emulation_test.c > @@ -5,9 +5,6 @@ > * Test that KVM emulates instructions in response to EPT violations when > * allow_smaller_maxphyaddr is enabled and guest.MAXPHYADDR < host.MAXPHYADDR. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > - > #include "flds_emulation.h" > > #include "test_util.h" > diff --git a/tools/testing/selftests/kvm/x86_64/smm_test.c b/tools/testing/selftests/kvm/x86_64/smm_test.c > index e18b86666e1f..55c88d664a94 100644 > --- a/tools/testing/selftests/kvm/x86_64/smm_test.c > +++ b/tools/testing/selftests/kvm/x86_64/smm_test.c > @@ -4,7 +4,6 @@ > * > * Tests for SMM. > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/state_test.c b/tools/testing/selftests/kvm/x86_64/state_test.c > index 88b58aab7207..1c756db329e5 100644 > --- a/tools/testing/selftests/kvm/x86_64/state_test.c > +++ b/tools/testing/selftests/kvm/x86_64/state_test.c > @@ -6,7 +6,6 @@ > * > * Tests for vCPU state save/restore, including nested guest state. > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/sync_regs_test.c b/tools/testing/selftests/kvm/x86_64/sync_regs_test.c > index adb5593daf48..8fa3948b0170 100644 > --- a/tools/testing/selftests/kvm/x86_64/sync_regs_test.c > +++ b/tools/testing/selftests/kvm/x86_64/sync_regs_test.c > @@ -8,8 +8,6 @@ > * including requesting an invalid register set, updates to/from values > * in kvm_run.s.regs when kvm_valid_regs and kvm_dirty_regs are toggled. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c b/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c > index dcbb3c29fb8e..abe71946941f 100644 > --- a/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c > +++ b/tools/testing/selftests/kvm/x86_64/ucna_injection_test.c > @@ -17,8 +17,6 @@ > * delivered into the guest or not. > * > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <pthread.h> > #include <inttypes.h> > #include <string.h> > diff --git a/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c b/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c > index f4f61a2d2464..53afbea4df88 100644 > --- a/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c > +++ b/tools/testing/selftests/kvm/x86_64/userspace_msr_exit_test.c > @@ -4,8 +4,6 @@ > * > * Tests for exiting into userspace on registered MSRs > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <sys/ioctl.h> > > #include "kvm_test_harness.h" > diff --git a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c > index 7f6f5f23fb9b..a39cba19c058 100644 > --- a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c > +++ b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c > @@ -4,9 +4,6 @@ > * > * Copyright (C) 2018, Red Hat, Inc. > */ > - > -#define _GNU_SOURCE /* for program_invocation_name */ > - > #include <stdio.h> > #include <stdlib.h> > #include <linux/bitmap.h> > diff --git a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c > index ea0cb3cae0f7..3b93f262b797 100644 > --- a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c > +++ b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c > @@ -10,7 +10,6 @@ > * and check it can be retrieved with KVM_GET_MSR, also test > * the invalid LBR formats are rejected. > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <sys/ioctl.h> > > #include <linux/bitmap.h> > diff --git a/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c b/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c > index affc32800158..00dd2ac07a61 100644 > --- a/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c > +++ b/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c > @@ -9,7 +9,6 @@ > * value instead of partially decayed timer value > * > */ > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c b/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c > index 725c206ba0b9..c78e5f755116 100644 > --- a/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c > +++ b/tools/testing/selftests/kvm/x86_64/xapic_ipi_test.c > @@ -19,8 +19,6 @@ > * Migration is a command line option. When used on non-numa machines will > * exit with error. Test is still usefull on non-numa for testing IPIs. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <getopt.h> > #include <pthread.h> > #include <inttypes.h> > diff --git a/tools/testing/selftests/kvm/x86_64/xapic_state_test.c b/tools/testing/selftests/kvm/x86_64/xapic_state_test.c > index ab75b873a4ad..69849acd95b0 100644 > --- a/tools/testing/selftests/kvm/x86_64/xapic_state_test.c > +++ b/tools/testing/selftests/kvm/x86_64/xapic_state_test.c > @@ -1,5 +1,4 @@ > // SPDX-License-Identifier: GPL-2.0-only > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <fcntl.h> > #include <stdio.h> > #include <stdlib.h> > diff --git a/tools/testing/selftests/kvm/x86_64/xss_msr_test.c b/tools/testing/selftests/kvm/x86_64/xss_msr_test.c > index 167c97abff1b..f331a4e9bae3 100644 > --- a/tools/testing/selftests/kvm/x86_64/xss_msr_test.c > +++ b/tools/testing/selftests/kvm/x86_64/xss_msr_test.c > @@ -4,8 +4,6 @@ > * > * Tests for the IA32_XSS MSR. > */ > - > -#define _GNU_SOURCE /* for program_invocation_short_name */ > #include <sys/ioctl.h> > > #include "test_util.h" > > base-commit: 9f92c06e184074930174e469205f4e78338651f8
diff --git a/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c b/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c index f3c2239228b10..75306dcfaad6c 100644 --- a/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c +++ b/tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c @@ -4,12 +4,12 @@ * * Tests for KVM paravirtual feature disablement */ +#include "kvm_test_harness.h" #include <asm/kvm_para.h> #include <linux/kvm_para.h> #include <linux/stringify.h> #include <stdint.h> -#include "kvm_test_harness.h" #include "apic.h" #include "test_util.h" #include "kvm_util.h"
Include kvm_test_harness.h first which will include kselftest_harness.h for _GNU_SOURCE to get defined first before inclusion of stdio.h. It is required for declaration of asprintf(). It removes the following build error caught by clang-17: In file included from x86_64/fix_hypercall_test.c:12: In file included from include/kvm_test_harness.h:11: ../kselftest_harness.h:1169:2: error: call to undeclared function 'asprintf'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1169 | asprintf(&test_name, "%s%s%s.%s", f->name, | ^ Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> --- tools/testing/selftests/kvm/x86_64/fix_hypercall_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)