Changes in Makefile

bbfd5594756011167b8f8de9a00e0c946afda1e6 - Merge drm/drm-next into drm-intel-gt-next

Wed, 28 May 2025 09:20:17 +0200

Merge drm/drm-next into drm-intel-gt-nextNeed to pull in a67221b5eb8d ("drm/i915/dp: Return min bpc supported by source instead of 0")in order to fix build breakage on GCC 9.4.0 (from Ubuntu 20.04).Signed-off-by: Joonas Lahtinen List of files: /linux/tools/lib/api/Makefile

db5302ae571beec635c1a96e7f72926a4e65195e - Merge drm/drm-next into drm-intel-next

Fri, 16 May 2025 09:22:36 +0200

Merge drm/drm-next into drm-intel-nextBackmerge to sync with v6.15-rc, xe, and specifically async flip changesin drm-misc.Signed-off-by: Jani Nikula List of files: /linux/tools/lib/api/Makefile

4f9786035f9e519db41375818e1d0b5f20da2f10 - Merge branch 'next' into for-linus

Mon, 02 Jun 2025 06:41:07 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.16 merge window. List of files: /linux/tools/lib/api/Makefile

d51b9d81f7883f526b26e3ab903e646274aebeb1 - Merge tag 'v6.15-rc6' into next

Fri, 16 May 2025 01:20:39 +0200

Merge tag 'v6.15-rc6' into nextSync up with mainline to bring in xpad controller changes. List of files: /linux/tools/lib/api/Makefile

844e31bbaef7c8a6ff2c0fbac45c0c85b5484482 - Merge remote-tracking branch 'drm-misc/drm-misc-next' into msm-next

Tue, 29 Apr 2025 22:42:29 +0200

Merge remote-tracking branch 'drm-misc/drm-misc-next' into msm-nextMerge drm-misc-next to get commit Fixes: fec450ca15af ("drm/display:hdmi: provide central data authority for ACR params").Signed-off-by: Rob Clark List of files: /linux/tools/lib/api/Makefile

3ab7ae8e07f888f223027f0ef84d33e43919ad55 - Merge drm/drm-next into drm-xe-next

Thu, 24 Apr 2025 13:34:55 +0200

Merge drm/drm-next into drm-xe-nextBackmerge to bring in linux 6.15-rc.Signed-off-by: Thomas Hellström List of files: /linux/tools/lib/api/Makefile

1afba39f9305fe4061a4e70baa6ebab9d41459da - Merge drm/drm-next into drm-misc-next

Mon, 07 Apr 2025 13:47:40 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to get v6.15-rc1 into drm-misc-next. Also fixes abuild issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/lib/api/Makefile

9f13acb2406a3aed90c6738b3a2f1c0e43118cbd - Merge tag 'v6.15-rc1' into x86/cpu, to refresh the branch with upstream changes

Fri, 11 Apr 2025 11:13:27 +0200

Merge tag 'v6.15-rc1' into x86/cpu, to refresh the branch with upstream changesSigned-off-by: Ingo Molnar List of files: /linux/tools/lib/api/Makefile

6ce0fdaae043803bb324d915ce0fe43316bf1e81 - Merge tag 'v6.15-rc1' into x86/asm, to refresh the branch

Wed, 09 Apr 2025 21:39:43 +0200

Merge tag 'v6.15-rc1' into x86/asm, to refresh the branchSigned-off-by: Ingo Molnar List of files: /linux/tools/lib/api/Makefile

1260ed77798502de9c98020040d2995008de10cc - Merge drm/drm-fixes into drm-misc-fixes

Tue, 08 Apr 2025 10:15:47 +0200

Merge drm/drm-fixes into drm-misc-fixesBackmerging to get updates from v6.15-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/lib/api/Makefile

802f0d58d52e8e34e08718479475ccdff0caffa0 - Merge tag 'perf-tools-for-v6.15-2025-03-27' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Mon, 31 Mar 2025 17:52:33 +0200

Merge tag 'perf-tools-for-v6.15-2025-03-27' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-toolsPull perf tools updates from Namhyung Kim: "perf record: - Introduce latency profiling using scheduler information. The latency profiling is to show impacts on wall-time rather than cpu-time. By tracking context switches, it can weight samples and find which part of the code contributed more to the execution latency. The value (period) of the sample is weighted by dividing it by the number of parallel execution at the moment. The parallelism is tracked in perf report with sched-switch records. This will reduce the portion that are run in parallel and in turn increase the portion of serial executions. For now, it's limited to profile processes, IOW system-wide profiling is not supported. You can add --latency option to enable this. $ perf record --latency -- make -C tools/perf I've run the above command for perf build which adds -j option to make with the number of CPUs in the system internally. Normally it'd show something like below: $ perf report -F overhead,comm ... # # Overhead Command # ........ ............... # 78.97% cc1 6.54% python3 4.21% shellcheck 3.28% ld 1.80% as 1.37% cc1plus 0.80% sh 0.62% clang 0.56% gcc 0.44% perl 0.39% make ... The cc1 takes around 80% of the overhead as it's the actual compiler. However it runs in parallel so its contribution to latency may be less than that. Now, perf report will show both overhead and latency (if --latency was given at record time) like below: $ perf report -s comm ... # # Overhead Latency Command # ........ ........ ............... # 78.97% 48.66% cc1 6.54% 25.68% python3 4.21% 0.39% shellcheck 3.28% 13.70% ld 1.80% 2.56% as 1.37% 3.08% cc1plus 0.80% 0.98% sh 0.62% 0.61% clang 0.56% 0.33% gcc 0.44% 1.71% perl 0.39% 0.83% make ... You can see latency of cc1 goes down to around 50% and python3 and ld contribute a lot more than their overhead. You can use --latency option in perf report to get the same result but ordered by latency. $ perf report --latency -s comm perf report: - As a side effect of the latency profiling work, it adds a new output field 'latency' and a sort key 'parallelism'. The below is a result from my system with 64 CPUs. The build was well-parallelized but contained some serial portions. $ perf report -s parallelism ... # # Overhead Latency Parallelism # ........ ........ ........... # 16.95% 1.54% 62 13.38% 1.24% 61 12.50% 70.47% 1 11.81% 1.06% 63 7.59% 0.71% 60 4.33% 12.20% 2 3.41% 0.33% 59 2.05% 0.18% 64 1.75% 1.09% 9 1.64% 1.85% 5 ... - Support Feodra mini-debuginfo which is a LZMA compressed symbol table inside ".gnu_debugdata" ELF section. perf annotate: - Add --code-with-type option to enable data-type profiling with the usual annotate output. Instead of focusing on data structure, it shows code annotation together with data type it accesses in case the instruction refers to a memory location (and it was able to resolve the target data type). Currently it only works with --stdio. $ perf annotate --stdio --code-with-type ... Percent | Source code & Disassembly of vmlinux for cpu/mem-loads,ldlat=30/pp (18 samples, percent: local period) ---------------------------------------------------------------------------------------------------------------------- : 0 0xffffffff81050610 <__fdget>: 0.00 : ffffffff81050610: callq 0xffffffff81c01b80 <__fentry__> # data-type: (stack operation) 0.00 : ffffffff81050615: pushq %rbp # data-type: (stack operation) 0.00 : ffffffff81050616: movq %rsp, %rbp 0.00 : ffffffff81050619: pushq %r15 # data-type: (stack operation) 0.00 : ffffffff8105061b: pushq %r14 # data-type: (stack operation) 0.00 : ffffffff8105061d: pushq %rbx # data-type: (stack operation) 0.00 : ffffffff8105061e: subq $0x10, %rsp 0.00 : ffffffff81050622: movl %edi, %ebx 0.00 : ffffffff81050624: movq %gs:0x7efc4814(%rip), %rax # 0x14e40 # data-type: struct task_struct* +0 0.00 : ffffffff8105062c: movq 0x8d0(%rax), %r14 # data-type: struct task_struct +0x8d0 (files) 0.00 : ffffffff81050633: movl (%r14), %eax # data-type: struct files_struct +0 (count.counter) 0.00 : ffffffff81050636: cmpl $0x1, %eax 0.00 : ffffffff81050639: je 0xffffffff810506a9 <__fdget+0x99> 0.00 : ffffffff8105063b: movq 0x20(%r14), %rcx # data-type: struct files_struct +0x20 (fdt) 0.00 : ffffffff8105063f: movl (%rcx), %eax # data-type: struct fdtable +0 (max_fds) 0.00 : ffffffff81050641: cmpl %ebx, %eax 0.00 : ffffffff81050643: jbe 0xffffffff810506ef <__fdget+0xdf> 0.00 : ffffffff81050649: movl %ebx, %r15d 5.56 : ffffffff8105064c: movq 0x8(%rcx), %rdx # data-type: struct fdtable +0x8 (fd) ... The "# data-type:" part was added with this change. The first few entries are not very interesting. But later you can it accesses a couple of fields in the task_struct, files_struct and fdtable. perf trace: - Support syscall tracing for different ABI. For example it can trace system calls for 32-bit applications on 64-bit kernel transparently. - Add --summary-mode=total option to show global syscall summary. The default is 'thread' to show per-thread syscall summary. Python support: - Add more interfaces to 'perf' module to parse events, and config, enable or disable the event list properly so that it can implement basic functionalities purely in Python. There is an example code for these new interfaces in python/tracepoint.py. - Add mypy and pylint support to enable build time checking. Fix some code based on the findings from these tools. Internals: - Introduce io_dir__readdir() API to make directory traveral (usually for proc or sysfs) efficient with less memory footprint. JSON vendor events: - Add events and metrics for ARM Neoverse N3 and V3 - Update events and metrics on various Intel CPUs - Add/update events for a number of SiFive processors"* tag 'perf-tools-for-v6.15-2025-03-27' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (229 commits) perf bpf-filter: Fix a parsing error with comma perf report: Fix a memory leak for perf_env on AMD perf trace: Fix wrong size to bpf_map__update_elem call perf tools: annotate asm_pure_loop.S perf python: Fix setup.py mypy errors perf test: Address attr.py mypy error perf build: Add pylint build tests perf build: Add mypy build tests perf build: Rename TEST_LOGS to SHELL_TEST_LOGS tools/build: Don't pass test log files to linker perf bench sched pipe: fix enforced blocking reads in worker_thread perf tools: Fix is_compat_mode build break in ppc64 perf build: filter all combinations of -flto for libperl perf vendor events arm64 AmpereOneX: Fix frontend_bound calculation perf vendor events arm64: AmpereOne/AmpereOneX: Mark LD_RETIRED impacted by errata perf trace: Fix evlist memory leak perf trace: Fix BTF memory leak perf trace: Make syscall table stable perf syscalltbl: Mask off ABI type for MIPS system calls perf build: Remove Makefile.syscalls ... List of files: /linux/tools/lib/api/Makefile

d118b08f7eee6d6f44b4c549cf22d6b078e2ed73 - tools lib api: Add io_dir an allocation free readdir alternative

Sat, 22 Feb 2025 07:10:06 +0100

tools lib api: Add io_dir an allocation free readdir alternativeglibc's opendir allocates a minimum of 32kb, when called recursivelyfor a directory tree the memory consumption can add up - nearly 300kbduring perf start-up when processing modules. Add a stack allocatedvariant of readdir sized a little more than 1kb.As getdents64 may be missing from libc, add support using syscall. Asthe system call number maybe missing, add #defines for those.Note, an earlier version of this patch had a feature test forgetdents64 but there were problems on certains distros wheregetdents64 would be #define renamed to getdents breaking the code. Thesyscall use was made uncondtional to work around this. There iscontext in:https://lore.kernel.org/lkml/20231207050433.1426834-1-irogers@google.com/Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20250222061015.303622-2-irogers@google.comSigned-off-by: Namhyung Kim List of files: /linux/tools/lib/api/Makefile

c771600c6af14749609b49565ffb4cac2959710d - Merge drm/drm-next into drm-intel-gt-next

Wed, 05 Feb 2025 10:29:14 +0100

Merge drm/drm-next into drm-intel-gt-nextWe need4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")in order to land a i915 PMU simplification and a fix. That landed in 6.12and we are stuck at 6.9 so lets bump things forward.Signed-off-by: Tvrtko Ursulin List of files: /linux/tools/lib/api/Makefile

25768de50b1f2dbb6ea44bd5148a87fe2c9c3688 - Merge branch 'next' into for-linus

Tue, 21 Jan 2025 06:37:39 +0100

Merge branch 'next' into for-linusPrepare input updates for 6.14 merge window. List of files: /linux/tools/lib/api/Makefile

6d4a0f4ea72319c9a37c1a7191695467006dd272 - Merge tag 'v6.13-rc3' into next

Tue, 17 Dec 2024 18:40:45 +0100

Merge tag 'v6.13-rc3' into nextSync up with the mainline. List of files: /linux/tools/lib/api/Makefile

3fd6c59042dbba50391e30862beac979491145fe - Merge tag 'v6.12-rc1' into clk-meson-next

Mon, 30 Sep 2024 11:28:07 +0200

Merge tag 'v6.12-rc1' into clk-meson-nextLinux 6.12-rc1 List of files: /linux/tools/lib/api/Makefile

a0efa2f362a69e47b9d8b48f770ef3a0249a7911 - Merge net-next/main to resolve conflicts

Wed, 09 Oct 2024 08:59:14 +0200

Merge net-next/main to resolve conflictsThe wireless-next tree was based on something older, and thereare now conflicts between -rc2 and work here. Merge net-next,which has enough of -rc2 for the conflicts to happen, resolvingthem in the process.Signed-off-by: Johannes Berg List of files: /linux/tools/lib/api/Makefile

b88132ceb3faccdd785809df75f9d490ebaab459 - Merge drm/drm-next into drm-xe-next

Fri, 04 Oct 2024 11:29:21 +0200

Merge drm/drm-next into drm-xe-nextBackmerging to resolve a conflict with core locally.Signed-off-by: Thomas Hellström List of files: /linux/tools/lib/api/Makefile

2dd0ef5d951e9b565ddb324fe26c531b6a40bf82 - Merge drm/drm-next into drm-misc-next

Mon, 30 Sep 2024 10:50:54 +0200

Merge drm/drm-next into drm-misc-nextGet drm-misc-next to up v6.12-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/lib/api/Makefile

e0568571258d096f0277c74185bcbfc9cf21bccb - Merge drm/drm-next into drm-intel-next

Mon, 30 Sep 2024 10:49:10 +0200

Merge drm/drm-next into drm-intel-nextSync to v6.12-rc1.Signed-off-by: Jani Nikula List of files: /linux/tools/lib/api/Makefile