- Linux-kselftest-mirror - lists.linaro.org

[PATCH] selftests: vDSO: fix Makefile so that it uses lib.mk correctly

by Aditya Deshpande

kselftest.rst states that flags must be specified before including lib.mk, but the vDSO selftest Makefile does not follow this order. As a result, changes made by lib.mk to flags and other variables are overwritten by the Makefile. For example, it is impossible to pass CFLAGS to the compiler via make. Rectify this by including lib.mk after assigning flag values. Also change the paths of the generated programs from absolute to relative paths as lib.mk will now correctly prepend the output directory path to the program name as intended. Cc: Shuah Khan <shuah(a)kernel.org> Cc: Andy Lutomirski <luto(a)kernel.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Vincenzo Frascino <vincenzo.frascino(a)arm.com> Signed-off-by: Aditya Deshpande <aditya.deshpande(a)arm.com> --- tools/testing/selftests/vDSO/Makefile | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/vDSO/Makefile b/tools/testing/selftests/vDSO/Makefile index d53a4d8008f9..19145210d044 100644 --- a/tools/testing/selftests/vDSO/Makefile +++ b/tools/testing/selftests/vDSO/Makefile @@ -1,16 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 -include ../lib.mk - uname_M := $(shell uname -m 2>/dev/null || echo not) ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/) -TEST_GEN_PROGS := $(OUTPUT)/vdso_test_gettimeofday $(OUTPUT)/vdso_test_getcpu -TEST_GEN_PROGS += $(OUTPUT)/vdso_test_abi -TEST_GEN_PROGS += $(OUTPUT)/vdso_test_clock_getres +TEST_GEN_PROGS := vdso_test_gettimeofday +TEST_GEN_PROGS += vdso_test_getcpu +TEST_GEN_PROGS += vdso_test_abi +TEST_GEN_PROGS += vdso_test_clock_getres ifeq ($(ARCH),$(filter $(ARCH),x86 x86_64)) -TEST_GEN_PROGS += $(OUTPUT)/vdso_standalone_test_x86 +TEST_GEN_PROGS += vdso_standalone_test_x86 endif -TEST_GEN_PROGS += $(OUTPUT)/vdso_test_correctness +TEST_GEN_PROGS += vdso_test_correctness CFLAGS := -std=gnu99 CFLAGS_vdso_standalone_test_x86 := -nostdlib -fno-asynchronous-unwind-tables -fno-stack-protector @@ -19,7 +18,8 @@ ifeq ($(CONFIG_X86_32),y) LDLIBS += -lgcc_s endif -all: $(TEST_GEN_PROGS) +include ../lib.mk + $(OUTPUT)/vdso_test_gettimeofday: parse_vdso.c vdso_test_gettimeofday.c $(OUTPUT)/vdso_test_getcpu: parse_vdso.c vdso_test_getcpu.c $(OUTPUT)/vdso_test_abi: parse_vdso.c vdso_test_abi.c -- 2.25.1

2 years, 4 months

2
1
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[PATCH v4] selftests: rtc: Improves rtctest error handling.

by Atul Kumar Pant

When running the rtctest if we pass wrong rtc device file as an argument the test fails expectedly, but prints the logs that are not useful to point out the issue. To handle this, the patch adds a checks to verify if the rtc_file is valid. Signed-off-by: Atul Kumar Pant <atulpant.linux(a)gmail.com> --- changes since v3: Added Linux-kselftest and Linux-kernel mailing lists. changes since v2: Changed error message when rtc file does not exist. changes since v1: Removed check for uid=0 If rtc file is invalid, then exit the test. tools/testing/selftests/rtc/rtctest.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/rtc/rtctest.c b/tools/testing/selftests/rtc/rtctest.c index 63ce02d1d5cc..630fef735c7e 100644 --- a/tools/testing/selftests/rtc/rtctest.c +++ b/tools/testing/selftests/rtc/rtctest.c @@ -17,6 +17,7 @@ #include <unistd.h> #include "../kselftest_harness.h" +#include "../kselftest.h" #define NUM_UIE 3 #define ALARM_DELTA 3 @@ -419,6 +420,8 @@ __constructor_order_last(void) int main(int argc, char **argv) { + int ret = -1; + switch (argc) { case 2: rtc_file = argv[1]; @@ -430,5 +433,11 @@ int main(int argc, char **argv) return 1; } - return test_harness_run(argc, argv); + // Run the test if rtc_file is valid + if (access(rtc_file, F_OK) == 0) + ret = test_harness_run(argc, argv); + else + ksft_exit_fail_msg("[ERROR]: Cannot access rtc file %s - Exiting\n", rtc_file); + + return ret; } -- 2.25.1

2 years, 4 months

2
1
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[PATCH v3 0/4] kernel.h: Split out a couple of macros to args.h

by Andy Shevchenko

There are macros in kernel.h that can be used outside of that header. Split them to args.h and replace open coded variants. Test compiled with `make allmodconfig` for x86_64. (Note that positive diff statistics is due to documentation being updated.) In v3: - split to a series of patches - fixed build issue on `make allmodconfig` for x86_64 (Andrew) In v2: - converted existing users at the same time (Andrew, Rasmus) - documented how it does work (Andrew, Rasmus) Andy Shevchenko (4): kernel.h: Split out COUNT_ARGS() and CONCATENATE() to args.h x86/asm: Replace custom COUNT_ARGS() & CONCATENATE() implementations arm64: smccc: Replace custom COUNT_ARGS() & CONCATENATE() implementations genetlink: Replace custom CONCATENATE() implementation arch/x86/include/asm/rmwcc.h | 11 +++-------- include/kunit/test.h | 1 + include/linux/args.h | 28 ++++++++++++++++++++++++++++ include/linux/arm-smccc.h | 27 ++++++++++----------------- include/linux/genl_magic_func.h | 27 ++++++++++++++------------- include/linux/genl_magic_struct.h | 8 +++----- include/linux/kernel.h | 7 ------- include/linux/pci.h | 2 +- include/trace/bpf_probe.h | 2 ++ 9 files changed, 62 insertions(+), 51 deletions(-) create mode 100644 include/linux/args.h -- 2.40.0.1.gaa8946217a0b

2 years, 4 months

1
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[PATCH v2 1/1] kernel.h: Split out COUNT_ARGS() and CONCATENATE() to args.h

by Andy Shevchenko

kernel.h is being used as a dump for all kinds of stuff for a long time. The COUNT_ARGS() and CONCATENATE() macros may be used in some places without need of the full kernel.h dependency train with it. Here is the attempt on cleaning it up by splitting out these macros(). While at it, include new header where it's being used and drop custom implementation of these macros and document how it works. Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- v2: converted existing users at the same time, documented (Andrew, Rasmus) arch/x86/include/asm/rmwcc.h | 11 +++-------- include/kunit/test.h | 1 + include/linux/args.h | 28 ++++++++++++++++++++++++++++ include/linux/arm-smccc.h | 27 ++++++++++----------------- include/linux/genl_magic_struct.h | 8 +++----- include/linux/kernel.h | 7 ------- include/linux/pci.h | 2 +- include/trace/bpf_probe.h | 2 ++ 8 files changed, 48 insertions(+), 38 deletions(-) create mode 100644 include/linux/args.h diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h index 7fa611216417..4b081e0d3306 100644 --- a/arch/x86/include/asm/rmwcc.h +++ b/arch/x86/include/asm/rmwcc.h @@ -2,12 +2,7 @@ #ifndef _ASM_X86_RMWcc #define _ASM_X86_RMWcc -/* This counts to 12. Any more, it will return 13th argument. */ -#define __RMWcc_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n -#define RMWcc_ARGS(X...) __RMWcc_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __RMWcc_CONCAT(a, b) a ## b -#define RMWcc_CONCAT(a, b) __RMWcc_CONCAT(a, b) +#include <linux/args.h> #define __CLOBBERS_MEM(clb...) "memory", ## clb @@ -48,7 +43,7 @@ cc_label: c = true; \ #define GEN_UNARY_RMWcc_3(op, var, cc) \ GEN_UNARY_RMWcc_4(op, var, cc, "%[var]") -#define GEN_UNARY_RMWcc(X...) RMWcc_CONCAT(GEN_UNARY_RMWcc_, RMWcc_ARGS(X))(X) +#define GEN_UNARY_RMWcc(X...) CONCATENATE(GEN_UNARY_RMWcc_, COUNT_ARGS(X))(X) #define GEN_BINARY_RMWcc_6(op, var, cc, vcon, _val, arg0) \ __GEN_RMWcc(op " %[val], " arg0, var, cc, \ @@ -57,7 +52,7 @@ cc_label: c = true; \ #define GEN_BINARY_RMWcc_5(op, var, cc, vcon, val) \ GEN_BINARY_RMWcc_6(op, var, cc, vcon, val, "%[var]") -#define GEN_BINARY_RMWcc(X...) RMWcc_CONCAT(GEN_BINARY_RMWcc_, RMWcc_ARGS(X))(X) +#define GEN_BINARY_RMWcc(X...) CONCATENATE(GEN_BINARY_RMWcc_, COUNT_ARGS(X))(X) #define GEN_UNARY_SUFFIXED_RMWcc(op, suffix, var, cc, clobbers...) \ __GEN_RMWcc(op " %[var]\n\t" suffix, var, cc, \ diff --git a/include/kunit/test.h b/include/kunit/test.h index 23120d50499e..107c81431634 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -12,6 +12,7 @@ #include <kunit/assert.h> #include <kunit/try-catch.h> +#include <linux/args.h> #include <linux/compiler.h> #include <linux/container_of.h> #include <linux/err.h> diff --git a/include/linux/args.h b/include/linux/args.h new file mode 100644 index 000000000000..8ff60a54eb7d --- /dev/null +++ b/include/linux/args.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_ARGS_H +#define _LINUX_ARGS_H + +/* + * How do these macros work? + * + * In __COUNT_ARGS() _0 to _12 are just placeholders from the start + * in order to make sure _n is positioned over the correct number + * from 12 to 0 (depending on X, which is a variadic argument list). + * They serve no purpose other than occupying a position. Since each + * macro parameter must have a distinct identifier, those identifiers + * are as good as any. + * + * In COUNT_ARGS() we use actual integers, so __COUNT_ARGS() returns + * that as _n. + */ + +/* This counts to 12. Any more, it will return 13th argument. */ +#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n +#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) + +/* Concatenate two parameters, but allow them to be expanded beforehand. */ +#define __CONCAT(a, b) a ## b +#define CONCATENATE(a, b) __CONCAT(a, b) + +#endif /* _LINUX_ARGS_H */ diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index f196c19f8e55..2865b14c2bba 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -5,6 +5,7 @@ #ifndef __LINUX_ARM_SMCCC_H #define __LINUX_ARM_SMCCC_H +#include <linux/args.h> #include <linux/init.h> #include <uapi/linux/const.h> @@ -413,11 +414,6 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, #endif -#define ___count_args(_0, _1, _2, _3, _4, _5, _6, _7, _8, x, ...) x - -#define __count_args(...) \ - ___count_args(__VA_ARGS__, 7, 6, 5, 4, 3, 2, 1, 0) - #define __constraint_read_0 "r" (arg0) #define __constraint_read_1 __constraint_read_0, "r" (arg1) #define __constraint_read_2 __constraint_read_1, "r" (arg2) @@ -475,14 +471,6 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res); \ register typeof(a7) arg7 asm("r7") = __a7 -#define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__) -#define __declare_args(count, ...) ___declare_args(count, __VA_ARGS__) - -#define ___constraints(count) \ - : __constraint_read_ ## count \ - : smccc_sve_clobbers "memory" -#define __constraints(count) ___constraints(count) - /* * We have an output list that is not necessarily used, and GCC feels * entitled to optimise the whole sequence away. "volatile" is what @@ -494,11 +482,13 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, register unsigned long r1 asm("r1"); \ register unsigned long r2 asm("r2"); \ register unsigned long r3 asm("r3"); \ - __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \ + CONCATENATE(__declare_arg_, COUNT_ARGS(__VA_ARGS__)); \ asm volatile(SMCCC_SVE_CHECK \ inst "\n" : \ "=r" (r0), "=r" (r1), "=r" (r2), "=r" (r3) \ - __constraints(__count_args(__VA_ARGS__))); \ + : CONCATENATE(__constraint_read_, \ + COUNT_ARGS(__VA_ARGS__)) \ + : smccc_sve_clobbers "memory"); \ if (___res) \ *___res = (typeof(*___res)){r0, r1, r2, r3}; \ } while (0) @@ -542,8 +532,11 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, */ #define __fail_smccc_1_1(...) \ do { \ - __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \ - asm ("" : __constraints(__count_args(__VA_ARGS__))); \ + CONCATENATE(__declare_arg_, COUNT_ARGS(__VA_ARGS__)); \ + asm ("" : \ + : CONCATENATE(__constraint_read_, \ + COUNT_ARGS(__VA_ARGS__)) \ + : smccc_sve_clobbers "memory"); \ if (___res) \ ___res->a0 = SMCCC_RET_NOT_SUPPORTED; \ } while (0) diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h index f81d48987528..a419d93789ff 100644 --- a/include/linux/genl_magic_struct.h +++ b/include/linux/genl_magic_struct.h @@ -14,14 +14,12 @@ # error "you need to define GENL_MAGIC_INCLUDE_FILE before inclusion" #endif +#include <linux/args.h> #include <linux/genetlink.h> #include <linux/types.h> -#define CONCAT__(a,b) a ## b -#define CONCAT_(a,b) CONCAT__(a,b) - -extern int CONCAT_(GENL_MAGIC_FAMILY, _genl_register)(void); -extern void CONCAT_(GENL_MAGIC_FAMILY, _genl_unregister)(void); +extern int CONCATENATE(GENL_MAGIC_FAMILY, _genl_register)(void); +extern void CONCATENATE(GENL_MAGIC_FAMILY, _genl_unregister)(void); /* * Extension of genl attribute validation policies {{{2 diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 0b00e1aef33d..15d9496db169 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -419,13 +419,6 @@ ftrace_vprintk(const char *fmt, va_list ap) static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #endif /* CONFIG_TRACING */ -/* This counts to 12. Any more, it will return 13th argument. */ -#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n -#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __CONCAT(a, b) a ## b -#define CONCATENATE(a, b) __CONCAT(a, b) - /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ #ifdef CONFIG_FTRACE_MCOUNT_RECORD # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD diff --git a/include/linux/pci.h b/include/linux/pci.h index 0ff7500772e6..eeb2e6f6130f 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -23,7 +23,7 @@ #ifndef LINUX_PCI_H #define LINUX_PCI_H - +#include <linux/args.h> #include <linux/mod_devicetable.h> #include <linux/types.h> diff --git a/include/trace/bpf_probe.h b/include/trace/bpf_probe.h index 1f7fc1fc590c..e609cd7da47e 100644 --- a/include/trace/bpf_probe.h +++ b/include/trace/bpf_probe.h @@ -12,6 +12,8 @@ #undef __perf_task #define __perf_task(t) (t) +#include <linux/args.h> + /* cast any integer, pointer, or small struct to u64 */ #define UINTTYPE(size) \ __typeof__(__builtin_choose_expr(size == 1, (u8)1, \ -- 2.40.0.1.gaa8946217a0b

2 years, 4 months

3
3
0 0

[PATCH v1 0/9] selftests/mm fixes for arm64

by Ryan Roberts

Hi All, Given my on-going work on large anon folios and contpte mappings, I decided it would be a good idea to start running mm selftests to help guard against regressions. However, it soon became clear that I couldn't get the suite to run cleanly on arm64 with a vanilla v6.5-rc1 kernel (perhaps I'm just doing it wrong??), so got stuck in a rabbit hole trying to debug and fix all the issues. Some were down to misconfigurations, but I also found a number of issues with the tests and even a couple of issues with the kernel. This series aims to fix (most of) the test issues. It applies on top of v6.5-rc1. Reproducing ----------- What follows is a write up of how I'm running the tests and the results I see with this series applied. I don't yet have a concrete understanding of all of the remaining failures. So if anyone has any comments on my setup or reasons for the test failures it would be great to hear. Source: v6.5-rc1 + this series + [1] + [2]. [1] is a patch from Florent Revest to fix mdwe mmap_FIXED tests. [2] is a fix for a regression in the kernel that I found by running `mlock-random-test` and `mlock2-tests`. Compile the kernel (on arm64 system): $ make defconfig $ ./scripts/config --enable CONFIG_SQUASHFS_LZ4 $ ./scripts/config --enable CONFIG_SQUASHFS_LZO $ ./scripts/config --enable CONFIG_SQUASHFS_XZ $ ./scripts/config --enable CONFIG_SQUASHFS_ZSTD $ ./scripts/config --enable CONFIG_XFS_FS $ ./scripts/config --enable CONFIG_SYSVIPC $ ./scripts/config --enable CONFIG_USERFAULTFD $ ./scripts/config --enable CONFIG_TEST_VMALLOC $ ./scripts/config --enable CONFIG_GUP_TEST $ ./scripts/config --enable CONFIG_TRANSPARENT_HUGEPAGE $ ./scripts/config --enable CONFIG_MEM_SOFT_DIRTY $ make olddefconfig $ make -s -j`nproc` Image (In the above case, I'm building/testing a 4K kernel). Note that it turns out that arm64 doesn't really support ZONE_DEVICE; Although it defines ARCH_HAS_PTE_DEVMAP, it can't allocate `struct page`s for arbitrary physical addresses. This means that the TEST_HMM module causes warnings to be emitted when initializing because it tries to reserve arbitrary PA range then requests struct page's for them. I haven't fully investigated this yet, but for now, I'm just deliverately excluding ZONE_DEVICE, (which TEST_HMM depends upon). This means that the `hmm-tests` selftest gets skipped at runtime. Compile the tests: $ make -j`nproc` headers_install $ make -C tools/testing/selftests TARGETS=mm install INSTALL_PATH=<path/to/install> Start a VM running the kernel we just compiled: $ taskset -c 8-15 qemu-system-aarch64 \ -object memory-backend-file,id=mem0,size=6G,mem-path=/hugetlbfs,merge=off,prealloc=on,host-nodes=0,policy=bind,align=1G \ -object memory-backend-file,id=mem1,size=6G,mem-path=/hugetlbfs,merge=off,prealloc=on,host-nodes=0,policy=bind,align=1G \ -nographic -enable-kvm -machine virt,gic-version=3 -cpu max \ -smp 8 -m 12G \ -numa node,memdev=mem0,cpus=0-3,nodeid=0 \ -numa node,memdev=mem1,cpus=4-7,nodeid=1 \ -drive if=virtio,format=raw,file=ubuntu-22.04.xfs \ -object rng-random,filename=/dev/urandom,id=rng0 \ -device virtio-scsi-pci,id=scsi0 \ -netdev user,id=net0,hostfwd=tcp::8022-:22 \ -device virtio-rng-pci,rng=rng0 \ -device virtio-net-pci,netdev=net0 \ -kernel arch/arm64/boot/Image \ -append "earlycon root=/dev/vda2 secretmem.enable hugepagesz=1G hugepages=0:2,1:2 hugepagesz=32M hugepages=0:2,1:2 default_hugepagesz=2M hugepages=0:64,1:64 hugepagesz=64K hugepages=0:2,1:2" This starts a VM with 2 numa nodes (needed by ksm and migration tests), with 6G of memory and 4 CPUs on each node. The kernel command line enables secretmem (needed for `memfd_secret` test), and preallocates a bunch of huge pages (divined by reading the comments and source for a bunch of tests that require huge pages). 128M of the default huge page size, and 4 pages of each of the other sizes appear to be sufficient. I'm allocating half on each numa node. Once booted, copy the selftests we just compiled onto it. On the VM, run the tests: $ cd path/to/selftests $ sudo ./run_kselftest.sh or alternatively: $ cd path/to/selftests/mm $ sudo ./run_vmtests.sh Test Results ------------ TOP-LEVEL SUMMARY: PASS=42 SKIP=4 FAIL=2 Only showing nested tests if they are skipped or failed. [PASS] hugepage-mmap [PASS] hugepage-shm [PASS] map_hugetlb [PASS] hugepage-mremap [PASS] hugepage-vmemmap [PASS] hugetlb-madvise [PASS] map_fixed_noreplace [PASS] gup_test -u [PASS] gup_test -a [PASS] gup_test -ct -F 0x1 0 19 0x1000 [PASS] gup_longterm [PASS] uffd-unit-tests [PASS] uffd-stress anon 20 16 [PASS] uffd-stress hugetlb 128 32 [PASS] uffd-stress hugetlb-private 128 32 [PASS] uffd-stress shmem 20 16 [PASS] uffd-stress shmem-private 20 16 [PASS] compaction_test [PASS] on-fault-limit [PASS] map_populate [PASS] mlock-random-test [PASS] mlock2-tests [PASS] mrelease_test [PASS] mremap_test [PASS] thuge-gen [PASS] virtual_address_range [SKIP] va_high_addr_switch.sh # 4K kernel does not support big enough VA space for test [SKIP] test_vmalloc.sh smoke # Test requires test_vmalloc kernel module which isn't present [PASS] mremap_dontunmap [SKIP] test_hmm.sh smoke # Test requires test_hmm kernel module - see ZONE_DEVICE issue above [PASS] madv_populate [PASS] test_softdirty [SKIP] range is not softdirty [SKIP] MADV_POPULATE_READ [SKIP] range is not softdirty [SKIP] MADV_POPULATE_WRITE [SKIP] range is softdirty # All skipped because arm64 does not support soft-dirty [PASS] memfd_secret [PASS] ksm_tests -M -p 10 [PASS] ksm_tests -U [PASS] ksm_tests -Z -p 10 -z 0 [PASS] ksm_tests -Z -p 10 -z 1 [PASS] ksm_tests -N -m 1 [PASS] ksm_tests -N -m 0 [PASS] ksm_functional_tests [SKIP] test_unmerge_uffd_wp # UFFD_FEATURE_PAGEFAULT_FLAG_WP not available on arm64 [PASS] ksm_functional_tests [SKIP] test_unmerge_uffd_wp # UFFD_FEATURE_PAGEFAULT_FLAG_WP not available on arm64 [SKIP] soft-dirty # Skipped because arm64 does not support soft-dirty [FAIL] cow [FAIL] vmsplice() + unmap in child ... with hugetlb [FAIL] vmsplice() + unmap in child with mprotect() optimization ... with hugetlb [FAIL] vmsplice() before fork(), unmap in parent after fork() ... with hugetlb [FAIL] vmsplice() + unmap in parent after fork() ... with hugetlb # Above are known issues for vmsplice + hugetlb # Reproduces on x86 [SKIP] Basic COW after fork() ... with swapped-out, PTE-mapped THP [SKIP] Basic COW after fork() with mprotect() optimization ... with swapped-out, PTE-mapped THP [SKIP] vmsplice() + unmap in child ... with swapped-out, PTE-mapped THP [SKIP] vmsplice() + unmap in child with mprotect() optimization ... with swapped-out, PTE-mapped THP [SKIP] vmsplice() before fork(), unmap in parent after fork() ... with swapped-out, PTE-mapped THP [SKIP] vmsplice() + unmap in parent after fork() ... with swapped-out, PTE-mapped THP [SKIP] R/O-mapping a page registered as iouring fixed buffer ... with swapped-out, PTE-mapped THP [SKIP] fork() with an iouring fixed buffer ... with swapped-out, PTE-mapped THP [SKIP] R/O GUP pin on R/O-mapped shared page ... with swapped-out, PTE-mapped THP [SKIP] R/O GUP-fast pin on R/O-mapped shared page ... with swapped-out, PTE-mapped THP [SKIP] R/O GUP pin on R/O-mapped previously-shared page ... with swapped-out, PTE-mapped THP [SKIP] R/O GUP-fast pin on R/O-mapped previously-shared page ... with swapped-out, PTE-mapped THP [SKIP] R/O GUP pin on R/O-mapped exclusive page ... with swapped-out, PTE-mapped THP [SKIP] R/O GUP-fast pin on R/O-mapped exclusive page ... with swapped-out, PTE-mapped THP # Above all skipped due to "MADV_PAGEOUT did not work, is swap enabled?" # swap is enabled though # Reproduces on x86 [SKIP] Basic COW after fork() when collapsing after fork() (fully shared) # MADV_COLLAPSE failed: Invalid argument [PASS] khugepaged [PASS] transhuge-stress -d 20 [PASS] split_huge_page_test [FAIL] migration [FAIL] migration.shared_anon # move_pages() reports that the requested page was not migrated # after a few iterations. [PASS] mkdirty [PASS] mdwe_test [1] https://lore.kernel.org/lkml/20230704153630.1591122-3-revest@chromium.org/ [2] https://lore.kernel.org/linux-mm/20230711175020.4091336-1-Liam.Howlett@orac… Thanks, Ryan Ryan Roberts (9): selftests: Line buffer test program's stdout selftests/mm: Give scripts execute permission selftests/mm: Skip soft-dirty tests on arm64 selftests/mm: Enable mrelease_test for arm64 selftests/mm: Fix thuge-gen test bugs selftests/mm: va_high_addr_switch should skip unsupported arm64 configs selftests/mm: Make migration test robust to failure selftests/mm: Optionally pass duration to transhuge-stress selftests/mm: Run all tests from run_vmtests.sh tools/testing/selftests/kselftest/runner.sh | 5 +- tools/testing/selftests/mm/Makefile | 79 ++++++++++--------- .../selftests/mm/charge_reserved_hugetlb.sh | 0 tools/testing/selftests/mm/check_config.sh | 0 .../selftests/mm/hugetlb_reparenting_test.sh | 0 tools/testing/selftests/mm/madv_populate.c | 18 +++-- tools/testing/selftests/mm/migration.c | 14 +++- tools/testing/selftests/mm/mrelease_test.c | 1 + tools/testing/selftests/mm/run_vmtests.sh | 23 ++++++ tools/testing/selftests/mm/settings | 2 +- tools/testing/selftests/mm/soft-dirty.c | 3 + tools/testing/selftests/mm/test_hmm.sh | 0 tools/testing/selftests/mm/test_vmalloc.sh | 0 tools/testing/selftests/mm/thuge-gen.c | 4 +- tools/testing/selftests/mm/transhuge-stress.c | 12 ++- .../selftests/mm/va_high_addr_switch.c | 3 +- .../selftests/mm/va_high_addr_switch.sh | 0 tools/testing/selftests/mm/vm_util.c | 17 ++++ tools/testing/selftests/mm/vm_util.h | 1 + .../selftests/mm/write_hugetlb_memory.sh | 0 20 files changed, 127 insertions(+), 55 deletions(-) mode change 100644 => 100755 tools/testing/selftests/mm/charge_reserved_hugetlb.sh mode change 100644 => 100755 tools/testing/selftests/mm/check_config.sh mode change 100644 => 100755 tools/testing/selftests/mm/hugetlb_reparenting_test.sh mode change 100644 => 100755 tools/testing/selftests/mm/run_vmtests.sh mode change 100644 => 100755 tools/testing/selftests/mm/test_hmm.sh mode change 100644 => 100755 tools/testing/selftests/mm/test_vmalloc.sh mode change 100644 => 100755 tools/testing/selftests/mm/va_high_addr_switch.sh mode change 100644 => 100755 tools/testing/selftests/mm/write_hugetlb_memory.sh -- 2.25.1

2 years, 4 months

6
39
0 0

[PATCH] selftests/bpf: Fix errors in log_fixup.c

by shijie001＠208suo.com

The following checkpatch errors are removed: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Jie Shi <shijie001(a)208suo.com> --- tools/testing/selftests/bpf/prog_tests/log_fixup.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/log_fixup.c b/tools/testing/selftests/bpf/prog_tests/log_fixup.c index dba71d98a227..69959748d466 100644 --- a/tools/testing/selftests/bpf/prog_tests/log_fixup.c +++ b/tools/testing/selftests/bpf/prog_tests/log_fixup.c @@ -14,7 +14,7 @@ enum trunc_type { static void bad_core_relo(size_t log_buf_size, enum trunc_type trunc_type) { char log_buf[8 * 1024]; - struct test_log_fixup* skel; + struct test_log_fixup *skel; int err; skel = test_log_fixup__open(); @@ -72,7 +72,7 @@ static void bad_core_relo(size_t log_buf_size, enum trunc_type trunc_type) static void bad_core_relo_subprog(void) { char log_buf[8 * 1024]; - struct test_log_fixup* skel; + struct test_log_fixup *skel; int err; skel = test_log_fixup__open(); @@ -104,7 +104,7 @@ static void bad_core_relo_subprog(void) static void missing_map(void) { char log_buf[8 * 1024]; - struct test_log_fixup* skel; + struct test_log_fixup *skel; int err; skel = test_log_fixup__open(); @@ -138,7 +138,7 @@ static void missing_map(void) static void missing_kfunc(void) { char log_buf[8 * 1024]; - struct test_log_fixup* skel; + struct test_log_fixup *skel; int err; skel = test_log_fixup__open();

2 years, 4 months

1
0
0 0

[PATCH] selftests/bpf: Fix errors in btf_write.c

by shijie001＠208suo.com

The following checkpatch errors are removed: ERROR: Bad function definition - void test_btf_add() should probably be void test_btf_add(void) ERROR: Bad function definition - void test_btf_add_btf() should probably be void test_btf_add_btf(void) ERROR: Bad function definition - void test_btf_write() should probably be void test_btf_write(void) Signed-off-by: Jie Shi <shijie001(a)208suo.com> --- tools/testing/selftests/bpf/prog_tests/btf_write.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/btf_write.c b/tools/testing/selftests/bpf/prog_tests/btf_write.c index 6e36de1302fc..209a230ffeec 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf_write.c +++ b/tools/testing/selftests/bpf/prog_tests/btf_write.c @@ -352,7 +352,7 @@ static void gen_btf(struct btf *btf) "\t'v1' val=18446744073709551615", "raw_dump"); } -static void test_btf_add() +static void test_btf_add(void) { struct btf *btf; @@ -401,7 +401,7 @@ static void test_btf_add() btf__free(btf); } -static void test_btf_add_btf() +static void test_btf_add_btf(void) { struct btf *btf1 = NULL, *btf2 = NULL; int id; @@ -497,7 +497,7 @@ static void test_btf_add_btf() btf__free(btf2); } -void test_btf_write() +void test_btf_write(void) { if (test__start_subtest("btf_add")) test_btf_add();

2 years, 4 months

1
0
0 0

[PATCH v3] selftests/net: replace manual array size calc with ARRAYSIZE macro.

by Mahmoud Maatuq

fixes coccinelle WARNING: Use ARRAY_SIZE changelog since v2: - integrat a commit that contains actual replacement for ARRAY_SIZE. - use ARRAY_SIZE for net/psock_lib.h changelog since v1: - remove unnecessary extra new line changelog since v0: - update net/Makefile to include kselftest.h - remove redefinition of ARRAYSIZE. Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm(a)gmail.com> --- tools/testing/selftests/net/Makefile | 2 ++ tools/testing/selftests/net/csum.c | 6 ++++-- tools/testing/selftests/net/hwtstamp_config.c | 6 ++++-- tools/testing/selftests/net/psock_lib.h | 4 +++- 4 files changed, 13 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 7f3ab2a93ed6..a06cc25489f9 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -3,6 +3,8 @@ CFLAGS = -Wall -Wl,--no-as-needed -O2 -g CFLAGS += -I../../../../usr/include/ $(KHDR_INCLUDES) +# Additional include paths needed by kselftest.h +CFLAGS += -I../ TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh \ rtnetlink.sh xfrm_policy.sh test_blackhole_dev.sh diff --git a/tools/testing/selftests/net/csum.c b/tools/testing/selftests/net/csum.c index 82a1c1839da6..90eb06fefa59 100644 --- a/tools/testing/selftests/net/csum.c +++ b/tools/testing/selftests/net/csum.c @@ -91,6 +91,8 @@ #include <sys/types.h> #include <unistd.h> +#include "kselftest.h" + static bool cfg_bad_csum; static int cfg_family = PF_INET6; static int cfg_num_pkt = 4; @@ -450,7 +452,7 @@ static void send_packet(int fd, const char *buf, int len) iov[2].iov_len = len; msg.msg_iov = iov; - msg.msg_iovlen = sizeof(iov) / sizeof(iov[0]); + msg.msg_iovlen = ARRAY_SIZE(iov); msg.msg_name = &addr; msg.msg_namelen = sizeof(addr); @@ -505,7 +507,7 @@ static void __recv_prepare_packet_filter(int fd, int off_nexthdr, int off_dport) struct sock_fprog prog = {}; prog.filter = filter; - prog.len = sizeof(filter) / sizeof(struct sock_filter); + prog.len = ARRAY_SIZE(filter); if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &prog, sizeof(prog))) error(1, errno, "setsockopt filter"); } diff --git a/tools/testing/selftests/net/hwtstamp_config.c b/tools/testing/selftests/net/hwtstamp_config.c index e1fdee841021..170728c96c46 100644 --- a/tools/testing/selftests/net/hwtstamp_config.c +++ b/tools/testing/selftests/net/hwtstamp_config.c @@ -16,6 +16,8 @@ #include <linux/net_tstamp.h> #include <linux/sockios.h> +#include "kselftest.h" + static int lookup_value(const char **names, int size, const char *name) { @@ -50,7 +52,7 @@ static const char *tx_types[] = { TX_TYPE(ONESTEP_SYNC) #undef TX_TYPE }; -#define N_TX_TYPES ((int)(sizeof(tx_types) / sizeof(tx_types[0]))) +#define N_TX_TYPES ((int)(ARRAY_SIZE(tx_types))) static const char *rx_filters[] = { #define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name @@ -71,7 +73,7 @@ static const char *rx_filters[] = { RX_FILTER(PTP_V2_DELAY_REQ), #undef RX_FILTER }; -#define N_RX_FILTERS ((int)(sizeof(rx_filters) / sizeof(rx_filters[0]))) +#define N_RX_FILTERS ((int)(ARRAY_SIZE(rx_filters))) static void usage(void) { diff --git a/tools/testing/selftests/net/psock_lib.h b/tools/testing/selftests/net/psock_lib.h index faa884385c45..6e4fef560873 100644 --- a/tools/testing/selftests/net/psock_lib.h +++ b/tools/testing/selftests/net/psock_lib.h @@ -14,6 +14,8 @@ #include <arpa/inet.h> #include <unistd.h> +#include "kselftest.h" + #define DATA_LEN 100 #define DATA_CHAR 'a' #define DATA_CHAR_1 'b' @@ -63,7 +65,7 @@ static __maybe_unused void pair_udp_setfilter(int fd) struct sock_fprog bpf_prog; bpf_prog.filter = bpf_filter; - bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter); + bpf_prog.len = ARRAY_SIZE(bpf_filter); if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_prog, sizeof(bpf_prog))) { -- 2.34.1

2 years, 4 months

1
0
0 0

[PATCH v2] selftests/net: replace manual array size calc with ARRAYSIZE macro.

by Mahmoud Maatuq

fixes coccinelle WARNING: Use ARRAY_SIZE changelog since v1: - remove unnecessary extra new line changelog since v0: - update net/Makefile to include kselftest.h - remove redefinition of ARRAYSIZE. Signed-off-by: Mahmoud Maatuq <mahmoudmatook.mm(a)gmail.com> --- tools/testing/selftests/net/Makefile | 2 ++ tools/testing/selftests/net/csum.c | 6 ++---- tools/testing/selftests/net/hwtstamp_config.c | 4 +--- 3 files changed, 5 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 7f3ab2a93ed6..a06cc25489f9 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -3,6 +3,8 @@ CFLAGS = -Wall -Wl,--no-as-needed -O2 -g CFLAGS += -I../../../../usr/include/ $(KHDR_INCLUDES) +# Additional include paths needed by kselftest.h +CFLAGS += -I../ TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh \ rtnetlink.sh xfrm_policy.sh test_blackhole_dev.sh diff --git a/tools/testing/selftests/net/csum.c b/tools/testing/selftests/net/csum.c index 702f34a9d506..90eb06fefa59 100644 --- a/tools/testing/selftests/net/csum.c +++ b/tools/testing/selftests/net/csum.c @@ -91,6 +91,8 @@ #include <sys/types.h> #include <unistd.h> +#include "kselftest.h" + static bool cfg_bad_csum; static int cfg_family = PF_INET6; static int cfg_num_pkt = 4; @@ -123,10 +125,6 @@ static struct sockaddr_in6 cfg_saddr6 = {.sin6_family = AF_INET6}; #define MAX_HEADER_LEN (sizeof(struct ipv6hdr) + ENC_HEADER_LEN + sizeof(struct tcphdr)) #define MAX_PAYLOAD_LEN 1024 -#ifndef ARRAY_SIZE -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -#endif - /* Trivial demo encap. Stand-in for transport layer protocols like ESP or PSP */ struct udp_encap_hdr { uint8_t nexthdr; diff --git a/tools/testing/selftests/net/hwtstamp_config.c b/tools/testing/selftests/net/hwtstamp_config.c index 263cc1c34165..60970d98eb9b 100644 --- a/tools/testing/selftests/net/hwtstamp_config.c +++ b/tools/testing/selftests/net/hwtstamp_config.c @@ -16,9 +16,7 @@ #include <linux/net_tstamp.h> #include <linux/sockios.h> -#ifndef ARRAY_SIZE -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -#endif +#include "kselftest.h" static int lookup_value(const char **names, int size, const char *name) -- 2.34.1

2 years, 4 months

1
0
0 0

[PATCH v4 00/18] tools/nolibc: shrink arch support

by Zhangjin Wu

Hi, Willy, Thomas Thanks very much for your careful review and great suggestions, now, we get v4 revision of the arch shrink series [1], it mainly include a new fixup for -O0 under gcc < 11.1.0, the stackprotector support for _start_c(), new testcases for startup code and two new test targets. All of the tests passed or skipped (tinyconfig + few options + qemu-system) for both -Os and -O0: arch/board | result ------------|------------ arm/versatilepb | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. arm/vexpress-a9 | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. arm/virt | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. aarch64/virt | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. i386/pc | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. x86_64/pc | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. mipsel/malta | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. loongarch64/virt | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. riscv64/virt | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. s390x/s390-ccw-virtio | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning. And more, for both -Os and -O0: $ for r in run-user run-nolibc-test run-libc-test; do make clean > /dev/null; make $r | grep status; done 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning 165 test(s): 153 passed, 12 skipped, 0 failed => status: warning // for make run-user, the euid0 and 32bit limit related tests are // skipped $ make clean && make run-user $ grep -i skip run.out 17 chroot_root [SKIPPED] 39 link_dir [SKIPPED] 62 limit_intptr_min_32 [SKIPPED] 63 limit_intptr_max_32 [SKIPPED] 64 limit_uintptr_max_32 [SKIPPED] 65 limit_ptrdiff_min_32 [SKIPPED] 66 limit_ptrdiff_max_32 [SKIPPED] 67 limit_size_max_32 [SKIPPED] // for run-libc-test, the _auxv variables, euid0, 32bits limit and // stackprotector related tests are skipped $ make clean && make run-libc-test $ grep -i skip run.out 9 environ_auxv [SKIPPED] 10 environ_total [SKIPPED] 12 auxv_addr [SKIPPED] 17 chroot_root [SKIPPED] 39 link_dir [SKIPPED] 62 limit_intptr_min_32 [SKIPPED] 63 limit_intptr_max_32 [SKIPPED] 64 limit_uintptr_max_32 [SKIPPED] 65 limit_ptrdiff_min_32 [SKIPPED] 66 limit_ptrdiff_max_32 [SKIPPED] 67 limit_size_max_32 [SKIPPED] 0 -fstackprotector not supported [SKIPPED] $ make clean >/dev/null; make run-libc-test CC=/labs/linux-lab/src/examples/musl-install/bin/musl-gcc | grep status 165 test(s): 151 passed, 12 skipped, 2 failed => status: failure // The failures are expected for musl has disabled both sbrk and brk // but not the sbrk(0); the _auxv variables, euid0, 32bits limit and // stackprotector related tests are skipped for musl too $ grep FAIL -ur run.out 9 sbrk = 1 ENOMEM [FAIL] 10 brk = -1 ENOMEM [FAIL] $ grep "SKIP" -ur run.out 9 environ_auxv [SKIPPED] 10 environ_total [SKIPPED] 12 auxv_addr [SKIPPED] 17 chroot_root [SKIPPED] 39 link_dir [SKIPPED] 62 limit_intptr_min_32 [SKIPPED] 63 limit_intptr_max_32 [SKIPPED] 64 limit_uintptr_max_32 [SKIPPED] 65 limit_ptrdiff_min_32 [SKIPPED] 66 limit_ptrdiff_max_32 [SKIPPED] 67 limit_size_max_32 [SKIPPED] 0 -fstackprotector not supported [SKIPPED] For stackprotector, gcc 13.1.0 is used to test on x86_64 standalonely: $ make run-user CROSS_COMPILE=x86_64-linux- | grep status 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning $ grep stack -ur run.out 0 -fstackprotector [OK] $ make run-nolibc-test CROSS_COMPILE=x86_64-linux- | grep status 165 test(s): 157 passed, 8 skipped, 0 failed => status: warning $ grep stack -ur run.out 0 -fstackprotector [OK] Changes from v3 --> v4: * tools/nolibc: arch-*.h: add missing space after ',' tools/nolibc: fix up startup failures for -O0 under gcc < 11.1.0 Both of the above changes are for _start, it is able to merge them if necessary. The first one is old for format errors reported by scripts/checkpatch.pl The second one is for -O0 failure under gcc < 11.1.0, applied the optimize("-Os", "omit-frame-pointer") suggestion from Thomas. * tools/nolibc: remove the old sys_stat support As suggested by Willy, Document carefully about the statx supported Linux version info. * tools/nolibc: add new crt.h with _start_c The code is polished carefully for smaller size and better readability. * tools/nolibc: stackprotector.h: add empty __stack_chk_init for !_NOLIBC_STACKPROTECTOR tools/nolibc: crt.h: initialize stack protector As suggested by Thomas, init stackprotector in _start_c() too. * tools/nolibc: arm: shrink _start with _start_c tools/nolibc: aarch64: shrink _start with _start_c tools/nolibc: i386: shrink _start with _start_c tools/nolibc: x86_64: shrink _start with _start_c tools/nolibc: mips: shrink _start with _start_c tools/nolibc: loongarch: shrink _start with _start_c tools/nolibc: riscv: shrink _start with _start_c tools/nolibc: s390: shrink _start with _start_c Removed the stackprotector initialization from _start too, we already have it in _start_c(). * selftests/nolibc: add EXPECT_PTRGE, EXPECT_PTRGT, EXPECT_PTRLE, EXPECT_PTRLT selftests/nolibc: add testcases for startup code Add a new startup test group to cover the testing of argc, argv/argv0, envp/environ and _auxv. Some testcases are enhanced, some are newly added from after the discussion during v3 review. * selftests/nolibc: allow run nolibc-test locally selftests/nolibc: allow test -include /path/to/nolibc.h Two new test targets are added to cover more scenes. Hope you like this revisoin ;-) Next patchset is powerpc & powerpc64 support, after that we will send the v2 of tinyconfig support, at last the left rv32 patches (mainly 64bit time). Best regards, Zhangjin --- [1]: https://lore.kernel.org/lkml/20230715100134.GD24086@1wt.eu/ Zhangjin Wu (18): tools/nolibc: arch-*.h: add missing space after ',' tools/nolibc: fix up startup failures for -O0 under gcc < 11.1.0 tools/nolibc: remove the old sys_stat support tools/nolibc: add new crt.h with _start_c tools/nolibc: stackprotector.h: add empty __stack_chk_init for !_NOLIBC_STACKPROTECTOR tools/nolibc: crt.h: initialize stack protector tools/nolibc: arm: shrink _start with _start_c tools/nolibc: aarch64: shrink _start with _start_c tools/nolibc: i386: shrink _start with _start_c tools/nolibc: x86_64: shrink _start with _start_c tools/nolibc: mips: shrink _start with _start_c tools/nolibc: loongarch: shrink _start with _start_c tools/nolibc: riscv: shrink _start with _start_c tools/nolibc: s390: shrink _start with _start_c selftests/nolibc: add EXPECT_PTRGE, EXPECT_PTRGT, EXPECT_PTRLE, EXPECT_PTRLT selftests/nolibc: add testcases for startup code selftests/nolibc: allow run nolibc-test locally selftests/nolibc: allow test -include /path/to/nolibc.h tools/include/nolibc/Makefile | 1 + tools/include/nolibc/arch-aarch64.h | 57 +--------- tools/include/nolibc/arch-arm.h | 83 ++------------- tools/include/nolibc/arch-i386.h | 62 ++--------- tools/include/nolibc/arch-loongarch.h | 46 +------- tools/include/nolibc/arch-mips.h | 76 ++----------- tools/include/nolibc/arch-riscv.h | 69 ++---------- tools/include/nolibc/arch-s390.h | 63 ++--------- tools/include/nolibc/arch-x86_64.h | 58 ++-------- tools/include/nolibc/crt.h | 61 +++++++++++ tools/include/nolibc/stackprotector.h | 2 + tools/include/nolibc/sys.h | 63 ++--------- tools/include/nolibc/types.h | 4 +- tools/testing/selftests/nolibc/Makefile | 12 +++ tools/testing/selftests/nolibc/nolibc-test.c | 106 ++++++++++++++++++- 15 files changed, 246 insertions(+), 517 deletions(-) create mode 100644 tools/include/nolibc/crt.h -- 2.25.1

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