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c0b172e5b6
User visible: - Support generating cross arch probes, i.e. if you specify a vmlinux file for different arch than the one in the host machine, $ perf probe --definition function_name args will generate the probe definition string needed to append to the target machine /sys/kernel/debug/tracing/kprobes_events file, using scripting (Masami Hiramatsu). - Make 'perf probe' skip the function prologue in uprobes if program compiled without optimization, using the same strategy as gdb and systemtap uses, fixing a bug where: $ perf probe -x ./test 'foo i' When 'foo(42)' was used on the "./test" executable would produce i=0 instead of the expected i=42 (Ravi Bangoria) - Demangle symbols for synthesized @plt entries too (Millian Wolff) Documentation: - Show default report configuration in 'perf config' example and docs (Millian Wolff) Infrastructure: - Make 'perf test vmlinux' tolerate the symbol aliasing pruning done when loading kallsyms and vmlinux (Arnaldo Carvalho de Melo) - Improve output of 'perf test vmlinux' test, to help identify on the verbose output which lines are warning and which are errors (Arnaldo Carvalho de Melo) - Prep work to stop having to pass symbol_filter_t to lots of functions, simplifying symtab loading routines (Arnaldo Carvalho de Melo) - Honor symbol_conf.allow_aliases when loading kallsyms as well, it was using it only when loading vmlinux files (Arnaldo Carvalho de Melo) - Fixup symbol->end before doing alias pruning when loading symbol tables (Arnaldo Carvalho de Melo) - Fix error handling of lzma kernel module decompression (Shawn Lin) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJXyFXLAAoJENZQFvNTUqpAao8P/0eaVlqNAl0Ynz+HK6TGWj8+ z6lLMjgGhqQAssMJXOljhAcllOLlTgNN0qxd8DRCoNmOVOGuzJfKyEB1nI/1AZCr IHhKRLpqFT+L/2Qkp/Qw5++a3PiR6BARL3oRS2mItv0FF4yCEJMTrIJAb7n16KWP 4txIchuCru1Du6ChpAunJYRgRaoHzI/ANuIuW6MhzhtNeyC0doR5LQfVoDNQy/Nc thjSsNImjImqoCu8U9res7GzRRk6ugrF4dSgR2fXkL4vrcqoQ9y4TC8QU1+Ep/tj Qc/GcBr3pB55OMHbCzAcI/B/rTfuD/qyQRwxCP+11AgBncgvhi7xnzYUyEPBCICp VWDs0/dPvE/FuGcJFMgPNlaGSSdLDzeIFrnjnMK/Umk0fV6lkQ60J8kn/ywi/yGh Zq8l1rUMM6gRf85/7kcAiili2GvpGAsv+R79QW7B1dTs+VfO0/CbhA98UTSQvWiH 3p0cFCAC4krnwMFbGpCZT2w4cPAmwozq29nHuzhKqF60v+rgVoaD80DxwORuDHBz eZnqbm6gflzbF2SwxvBVYUaaMgAwOU+s/Fz2QDDHu+31B3AGCYEGJp88UjC4HBxf WpvuNj5sL16ilWeTq1uQI7nhc7qu6UolysUahmRUz3pXoJe3n57ltj6mCZA+jPLj Axv9VhRUBn2KQZaoDjPF =zDiL -----END PGP SIGNATURE----- Merge tag 'perf-core-for-mingo-20160901' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Support generating cross arch probes, i.e. if you specify a vmlinux file for different arch than the one in the host machine, $ perf probe --definition function_name args will generate the probe definition string needed to append to the target machine /sys/kernel/debug/tracing/kprobes_events file, using scripting (Masami Hiramatsu). - Make 'perf probe' skip the function prologue in uprobes if program compiled without optimization, using the same strategy as gdb and systemtap uses, fixing a bug where: $ perf probe -x ./test 'foo i' When 'foo(42)' was used on the "./test" executable would produce i=0 instead of the expected i=42 (Ravi Bangoria) - Demangle symbols for synthesized @plt entries too (Millian Wolff) Documentation changes: - Show default report configuration in 'perf config' example and docs (Millian Wolff) Infrastructure changes: - Make 'perf test vmlinux' tolerate the symbol aliasing pruning done when loading kallsyms and vmlinux (Arnaldo Carvalho de Melo) - Improve output of 'perf test vmlinux' test, to help identify on the verbose output which lines are warning and which are errors (Arnaldo Carvalho de Melo) - Prep work to stop having to pass symbol_filter_t to lots of functions, simplifying symtab loading routines (Arnaldo Carvalho de Melo) - Honor symbol_conf.allow_aliases when loading kallsyms as well, it was using it only when loading vmlinux files (Arnaldo Carvalho de Melo) - Fixup symbol->end before doing alias pruning when loading symbol tables (Arnaldo Carvalho de Melo) - Fix error handling of lzma kernel module decompression (Shawn Lin) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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