On 4/24/24 12:03 AM, Sean Christopherson wrote: > 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 requires _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@xxxxxxxxxxxxx> > Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> Thanks for sending the patch. Reviewed-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx> > --- > 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 871e2de3eb05..6de9994971c9 100644 > --- a/tools/testing/selftests/kvm/Makefile > +++ b/tools/testing/selftests/kvm/Makefile > @@ -226,8 +226,8 @@ 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@xxxxxxxxxxxxxxx> > */ > - > -#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 8acca8237687..af02308e264e 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 9da388100f3a..c4f12e272b38 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 d482029b6004..e9535ee20b7f 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 1a6da7389bf1..0b9678858b6d 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@xxxxxxxxxxxxx> > */ > - > -#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 68c899d27561..ad95e966cff7 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 26c85815f7e9..77f14138594e 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 977948fd52e6..fa512d033205 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: 7b076c6a308ec5bce9fc96e2935443ed228b9148 -- BR, Muhammad Usama Anjum
