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Mon, 16 Dec 2024 22:40:01 -0800 (PST) From: Charlie Jenkins Date: Mon, 16 Dec 2024 22:33:01 -0800 Subject: [PATCH v3 16/16] perf tools: Remove dependency on libaudit MIME-Version: 1.0 Message-Id: <20241216-perf_syscalltbl-v3-16-239f032481d5@rivosinc.com> References: <20241216-perf_syscalltbl-v3-0-239f032481d5@rivosinc.com> In-Reply-To: <20241216-perf_syscalltbl-v3-0-239f032481d5@rivosinc.com> To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Paul Walmsley , Palmer Dabbelt , =?utf-8?q?Micka=C3=ABl_Sala=C3=BCn?= , =?utf-8?q?G=C3=BCnt?= =?utf-8?q?her_Noack?= , Christian Brauner , Guo Ren , John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , Jonathan Corbet , =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , Arnd Bergmann Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-riscv@lists.infradead.org, linux-security-module@vger.kernel.org, bpf@vger.kernel.org, linux-csky@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, Charlie Jenkins X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=17722; i=charlie@rivosinc.com; h=from:subject:message-id; bh=l1Ser96/ogvT5kdgPhN2YrOSJRGf4Opsq+T7mgeD0Bc=; b=owGbwMvMwCHWx5hUnlvL8Y3xtFoSQ3qizETXxYeVrulxSZzRUU81ltk4u0Am8O0TBylR4/mml nfdp2zqKGVhEONgkBVTZOG51sDceke/7Kho2QSYOaxMIEMYuDgFYCI2Lgz/bLbNc1zUyRazOOee ruNOvf1yume87rNwG9VMWajhFDavguF/xvbrl9+y97w9FDpF+JPonSfF0+Nk756a3T1Tnn1ny8z 9vAA= X-Developer-Key: i=charlie@rivosinc.com; a=openpgp; fpr=7D834FF11B1D8387E61C776FFB10D1F27D6B1354 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241216_224003_291551_1446764F X-CRM114-Status: GOOD ( 21.24 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org All architectures now support HAVE_SYSCALL_TABLE_SUPPORT, so the flag is no longer needed. With the removal of the flag, the related GENERIC_SYSCALL_TABLE can also be removed. libaudit was only used as a fallback for when HAVE_SYSCALL_TABLE_SUPPORT was not defined, so libaudit is also no longer needed for any architecture. Signed-off-by: Charlie Jenkins --- Documentation/admin-guide/workload-tracing.rst | 2 +- tools/build/feature/Makefile | 4 -- tools/build/feature/test-libaudit.c | 11 ------ tools/perf/Documentation/perf-check.txt | 1 - tools/perf/Makefile.config | 31 +-------------- tools/perf/Makefile.perf | 15 -------- tools/perf/builtin-check.c | 1 - tools/perf/builtin-help.c | 2 - tools/perf/builtin-trace.c | 30 --------------- tools/perf/perf.c | 6 +-- tools/perf/tests/make | 7 +--- tools/perf/util/env.c | 4 +- tools/perf/util/generate-cmdlist.sh | 4 +- tools/perf/util/syscalltbl.c | 52 -------------------------- 14 files changed, 10 insertions(+), 160 deletions(-) diff --git a/Documentation/admin-guide/workload-tracing.rst b/Documentation/admin-guide/workload-tracing.rst index b2e254ec8ee846afe78eede74a825b51c6ab119b..6be38c1b9c5bb4be899fd261c6d2911abcf959dc 100644 --- a/Documentation/admin-guide/workload-tracing.rst +++ b/Documentation/admin-guide/workload-tracing.rst @@ -83,7 +83,7 @@ scripts/ver_linux is a good way to check if your system already has the necessary tools:: sudo apt-get build-essentials flex bison yacc - sudo apt install libelf-dev systemtap-sdt-dev libaudit-dev libslang2-dev libperl-dev libdw-dev + sudo apt install libelf-dev systemtap-sdt-dev libslang2-dev libperl-dev libdw-dev cscope is a good tool to browse kernel sources. Let's install it now:: diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 043dfd00fce72d8f651ccd9b3265a0183f500e5c..e0b63e9d0251abe6d5eafc6d2f26b940918b16ee 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -13,7 +13,6 @@ FILES= \ test-gtk2.bin \ test-gtk2-infobar.bin \ test-hello.bin \ - test-libaudit.bin \ test-libbfd.bin \ test-libbfd-buildid.bin \ test-disassembler-four-args.bin \ @@ -228,9 +227,6 @@ $(OUTPUT)test-libunwind-debug-frame-arm.bin: $(OUTPUT)test-libunwind-debug-frame-aarch64.bin: $(BUILD) -lelf -llzma -lunwind-aarch64 -$(OUTPUT)test-libaudit.bin: - $(BUILD) -laudit - $(OUTPUT)test-libslang.bin: $(BUILD) -lslang diff --git a/tools/build/feature/test-libaudit.c b/tools/build/feature/test-libaudit.c deleted file mode 100644 index f5b0863fa1ec240795339428d8deed98a946d405..0000000000000000000000000000000000000000 --- a/tools/build/feature/test-libaudit.c +++ /dev/null @@ -1,11 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include - -extern int printf(const char *format, ...); - -int main(void) -{ - printf("error message: %s\n", audit_errno_to_name(0)); - - return audit_open(); -} diff --git a/tools/perf/Documentation/perf-check.txt b/tools/perf/Documentation/perf-check.txt index 31741499e7867c9b712227f31a2958fd641d474a..e6d2ceeb2ca7de850f41b1baa0375b6f984bb08f 100644 --- a/tools/perf/Documentation/perf-check.txt +++ b/tools/perf/Documentation/perf-check.txt @@ -51,7 +51,6 @@ feature:: dwarf_getlocations / HAVE_LIBDW_SUPPORT dwarf-unwind / HAVE_DWARF_UNWIND_SUPPORT auxtrace / HAVE_AUXTRACE_SUPPORT - libaudit / HAVE_LIBAUDIT_SUPPORT libbfd / HAVE_LIBBFD_SUPPORT libcapstone / HAVE_LIBCAPSTONE_SUPPORT libcrypto / HAVE_LIBCRYPTO_SUPPORT diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 3f82ba907381049213c055ab10c3fe14d9572073..a57b2364578f57e31476f5041a06a0cd22d8b27e 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -28,20 +28,7 @@ include $(srctree)/tools/scripts/Makefile.arch $(call detected_var,SRCARCH) -ifneq ($(NO_SYSCALL_TABLE),1) - NO_SYSCALL_TABLE := 1 - - # architectures that use the generic syscall table scripts - ifneq ($(filter $(SRCARCH), $(generic_syscall_table_archs)),) - NO_SYSCALL_TABLE := 0 - CFLAGS += -DGENERIC_SYSCALL_TABLE - CFLAGS += -I$(OUTPUT)tools/perf/arch/$(SRCARCH)/include/generated - endif - - ifneq ($(NO_SYSCALL_TABLE),1) - CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT - endif -endif +CFLAGS += -I$(OUTPUT)tools/perf/arch/$(SRCARCH)/include/generated # Additional ARCH settings for ppc ifeq ($(SRCARCH),powerpc) @@ -755,21 +742,7 @@ ifndef NO_LIBUNWIND endif ifneq ($(NO_LIBTRACEEVENT),1) - ifeq ($(NO_SYSCALL_TABLE),0) - $(call detected,CONFIG_TRACE) - else - ifndef NO_LIBAUDIT - $(call feature_check,libaudit) - ifneq ($(feature-libaudit), 1) - $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev) - NO_LIBAUDIT := 1 - else - CFLAGS += -DHAVE_LIBAUDIT_SUPPORT - EXTLIBS += -laudit - $(call detected,CONFIG_TRACE) - endif - endif - endif + $(call detected,CONFIG_TRACE) endif ifndef NO_LIBCRYPTO diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 2c6a509c800d3037933c9b49e5a7dafbf78fda0c..ab2d075ff3a23350a5eea12508cf0376f1d9f4e8 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -59,8 +59,6 @@ include ../scripts/utilities.mak # # Define NO_LIBNUMA if you do not want numa perf benchmark # -# Define NO_LIBAUDIT if you do not want libaudit support -# # Define NO_LIBBIONIC if you do not want bionic support # # Define NO_LIBCRYPTO if you do not want libcrypto (openssl) support @@ -119,10 +117,6 @@ include ../scripts/utilities.mak # # Define LIBBPF_DYNAMIC to enable libbpf dynamic linking. # -# Define NO_SYSCALL_TABLE=1 to disable the use of syscall id to/from name tables -# generated from the kernel .tbl or unistd.h files and use, if available, libaudit -# for doing the conversions to/from strings/id. -# # Define NO_LIBPFM4 to disable libpfm4 events extension. # # Define NO_LIBDEBUGINFOD if you do not want support debuginfod @@ -310,11 +304,7 @@ ifeq ($(filter feature-dump,$(MAKECMDGOALS)),feature-dump) FEATURE_TESTS := all endif endif -# architectures that use the generic syscall table -generic_syscall_table_archs := riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips powerpc s390 -ifneq ($(filter $(SRCARCH), $(generic_syscall_table_archs)),) include $(srctree)/tools/perf/scripts/Makefile.syscalls -endif include Makefile.config endif @@ -1099,11 +1089,6 @@ endif $(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)' $(call QUIET_INSTALL, perf-iostat) \ $(INSTALL) $(OUTPUT)perf-iostat -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)' -ifndef NO_LIBAUDIT - $(call QUIET_INSTALL, strace/groups) \ - $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(STRACE_GROUPS_INSTDIR_SQ)'; \ - $(INSTALL) trace/strace/groups/* -m 644 -t '$(DESTDIR_SQ)$(STRACE_GROUPS_INSTDIR_SQ)' -endif ifndef NO_LIBPERL $(call QUIET_INSTALL, perl-scripts) \ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'; \ diff --git a/tools/perf/builtin-check.c b/tools/perf/builtin-check.c index 2346536a5ee14f91ecd10bd130a64676e871e1b2..7aed7b9f4f5270527ee1d36327eb6a01f196a46a 100644 --- a/tools/perf/builtin-check.c +++ b/tools/perf/builtin-check.c @@ -31,7 +31,6 @@ struct feature_status supported_features[] = { FEATURE_STATUS("dwarf_getlocations", HAVE_LIBDW_SUPPORT), FEATURE_STATUS("dwarf-unwind", HAVE_DWARF_UNWIND_SUPPORT), FEATURE_STATUS("auxtrace", HAVE_AUXTRACE_SUPPORT), - FEATURE_STATUS("libaudit", HAVE_LIBAUDIT_SUPPORT), FEATURE_STATUS("libbfd", HAVE_LIBBFD_SUPPORT), FEATURE_STATUS("libcapstone", HAVE_LIBCAPSTONE_SUPPORT), FEATURE_STATUS("libcrypto", HAVE_LIBCRYPTO_SUPPORT), diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c index 0854d3cd9f6a304cd9cb50ad430d5706d91df0e9..7be6fb6df595923c15ae51747d5bf17d867ae785 100644 --- a/tools/perf/builtin-help.c +++ b/tools/perf/builtin-help.c @@ -447,9 +447,7 @@ int cmd_help(int argc, const char **argv) #ifdef HAVE_LIBELF_SUPPORT "probe", #endif -#if defined(HAVE_LIBAUDIT_SUPPORT) || defined(HAVE_SYSCALL_TABLE_SUPPORT) "trace", -#endif NULL }; const char *builtin_help_usage[] = { "perf help [--all] [--man|--web|--info] [command]", diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 6a1a128fe645014d0347ad4ec3e0c9e77ec59aee..0fddf34458db4fe4896d25f427f2ae29cb3aa15f 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -2069,30 +2069,11 @@ static int trace__read_syscall_info(struct trace *trace, int id) const char *name = syscalltbl__name(trace->sctbl, id); int err; -#ifdef HAVE_SYSCALL_TABLE_SUPPORT if (trace->syscalls.table == NULL) { trace->syscalls.table = calloc(trace->sctbl->syscalls.max_id + 1, sizeof(*sc)); if (trace->syscalls.table == NULL) return -ENOMEM; } -#else - if (id > trace->sctbl->syscalls.max_id || (id == 0 && trace->syscalls.table == NULL)) { - // When using libaudit we don't know beforehand what is the max syscall id - struct syscall *table = realloc(trace->syscalls.table, (id + 1) * sizeof(*sc)); - - if (table == NULL) - return -ENOMEM; - - // Need to memset from offset 0 and +1 members if brand new - if (trace->syscalls.table == NULL) - memset(table, 0, (id + 1) * sizeof(*sc)); - else - memset(table + trace->sctbl->syscalls.max_id + 1, 0, (id - trace->sctbl->syscalls.max_id) * sizeof(*sc)); - - trace->syscalls.table = table; - trace->sctbl->syscalls.max_id = id; - } -#endif sc = trace->syscalls.table + id; if (sc->nonexistent) return -EEXIST; @@ -2439,18 +2420,7 @@ static struct syscall *trace__syscall_info(struct trace *trace, err = -EINVAL; -#ifdef HAVE_SYSCALL_TABLE_SUPPORT if (id > trace->sctbl->syscalls.max_id) { -#else - if (id >= trace->sctbl->syscalls.max_id) { - /* - * With libaudit we don't know beforehand what is the max_id, - * so we let trace__read_syscall_info() figure that out as we - * go on reading syscalls. - */ - err = trace__read_syscall_info(trace, id); - if (err) -#endif goto out_cant_read; } diff --git a/tools/perf/perf.c b/tools/perf/perf.c index a2987f2cfe1a3958f53239ed1a4eec3f87d7466a..f0617cc41f5fe638986e5d8316a6b3056c2c4bc5 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -84,7 +84,7 @@ static struct cmd_struct commands[] = { #endif { "kvm", cmd_kvm, 0 }, { "test", cmd_test, 0 }, -#if defined(HAVE_LIBTRACEEVENT) && (defined(HAVE_LIBAUDIT_SUPPORT) || defined(HAVE_SYSCALL_TABLE_SUPPORT)) +#if defined(HAVE_LIBTRACEEVENT) { "trace", cmd_trace, 0 }, #endif { "inject", cmd_inject, 0 }, @@ -514,10 +514,6 @@ int main(int argc, const char **argv) fprintf(stderr, "trace command not available: missing libtraceevent devel package at build time.\n"); goto out; -#elif !defined(HAVE_LIBAUDIT_SUPPORT) && !defined(HAVE_SYSCALL_TABLE_SUPPORT) - fprintf(stderr, - "trace command not available: missing audit-libs devel package at build time.\n"); - goto out; #else setup_path(); argv[0] = "trace"; diff --git a/tools/perf/tests/make b/tools/perf/tests/make index a7fcbd589752a90459815bd21075528c6dfa4d94..0ee94caf9ec19820a94a87dd46a7ccf1cefb844a 100644 --- a/tools/perf/tests/make +++ b/tools/perf/tests/make @@ -86,7 +86,6 @@ make_no_libdw_dwarf_unwind := NO_LIBDW_DWARF_UNWIND=1 make_no_backtrace := NO_BACKTRACE=1 make_no_libcapstone := NO_CAPSTONE=1 make_no_libnuma := NO_LIBNUMA=1 -make_no_libaudit := NO_LIBAUDIT=1 make_no_libbionic := NO_LIBBIONIC=1 make_no_auxtrace := NO_AUXTRACE=1 make_no_libbpf := NO_LIBBPF=1 @@ -97,7 +96,6 @@ make_no_libllvm := NO_LIBLLVM=1 make_with_babeltrace:= LIBBABELTRACE=1 make_with_coresight := CORESIGHT=1 make_no_sdt := NO_SDT=1 -make_no_syscall_tbl := NO_SYSCALL_TABLE=1 make_no_libpfm4 := NO_LIBPFM4=1 make_with_gtk2 := GTK2=1 make_refcnt_check := EXTRA_CFLAGS="-DREFCNT_CHECKING=1" @@ -122,10 +120,10 @@ make_static := LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX3 # all the NO_* variable combined make_minimal := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_GTK2=1 make_minimal += NO_DEMANGLE=1 NO_LIBELF=1 NO_BACKTRACE=1 -make_minimal += NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 +make_minimal += NO_LIBNUMA=1 NO_LIBBIONIC=1 make_minimal += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 make_minimal += NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1 -make_minimal += NO_LIBCAP=1 NO_SYSCALL_TABLE=1 NO_CAPSTONE=1 +make_minimal += NO_LIBCAP=1 NO_CAPSTONE=1 # $(run) contains all available tests run := make_pure @@ -158,7 +156,6 @@ run += make_no_libdw_dwarf_unwind run += make_no_backtrace run += make_no_libcapstone run += make_no_libnuma -run += make_no_libaudit run += make_no_libbionic run += make_no_auxtrace run += make_no_libbpf diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index e2843ca2edd92ea5fa1c020ae92b183c496e975e..e9a694350671910d537de599071dbe7fcc18ced4 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -474,13 +474,13 @@ const char *perf_env__arch(struct perf_env *env) const char *perf_env__arch_strerrno(struct perf_env *env __maybe_unused, int err __maybe_unused) { -#if defined(HAVE_SYSCALL_TABLE_SUPPORT) && defined(HAVE_LIBTRACEEVENT) +#if defined(HAVE_LIBTRACEEVENT) if (env->arch_strerrno == NULL) env->arch_strerrno = arch_syscalls__strerrno_function(perf_env__arch(env)); return env->arch_strerrno ? env->arch_strerrno(err) : "no arch specific strerrno function"; #else - return "!(HAVE_SYSCALL_TABLE_SUPPORT && HAVE_LIBTRACEEVENT)"; + return "!HAVE_LIBTRACEEVENT"; #endif } diff --git a/tools/perf/util/generate-cmdlist.sh b/tools/perf/util/generate-cmdlist.sh index 1b5140e5ce9975fac87b2674dc694f9d4e439a5f..6a73c903d69050df69267a8aeaeeac1ed170efe1 100755 --- a/tools/perf/util/generate-cmdlist.sh +++ b/tools/perf/util/generate-cmdlist.sh @@ -38,7 +38,7 @@ do done echo "#endif /* HAVE_LIBELF_SUPPORT */" -echo "#if defined(HAVE_LIBTRACEEVENT) && (defined(HAVE_LIBAUDIT_SUPPORT) || defined(HAVE_SYSCALL_TABLE_SUPPORT))" +echo "#if defined(HAVE_LIBTRACEEVENT)" sed -n -e 's/^perf-\([^ ]*\)[ ].* audit*/\1/p' command-list.txt | sort | while read cmd @@ -51,7 +51,7 @@ do p }' "Documentation/perf-$cmd.txt" done -echo "#endif /* HAVE_LIBTRACEEVENT && (HAVE_LIBAUDIT_SUPPORT || HAVE_SYSCALL_TABLE_SUPPORT) */" +echo "#endif /* HAVE_LIBTRACEEVENT */" echo "#ifdef HAVE_LIBTRACEEVENT" sed -n -e 's/^perf-\([^ ]*\)[ ].* traceevent.*/\1/p' command-list.txt | diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c index 210f61b0a7a264a427ebb602185d3a9da2f426f4..928aca4cd6e9f2f26c5c4fd825b4538c064a4cc3 100644 --- a/tools/perf/util/syscalltbl.c +++ b/tools/perf/util/syscalltbl.c @@ -10,20 +10,12 @@ #include #include -#ifdef HAVE_SYSCALL_TABLE_SUPPORT #include #include "string2.h" -#if defined(GENERIC_SYSCALL_TABLE) #include const int syscalltbl_native_max_id = SYSCALLTBL_MAX_ID; static const char *const *syscalltbl_native = syscalltbl; -#else -const int syscalltbl_native_max_id = 0; -static const char *const syscalltbl_native[] = { - [0] = "unknown", -}; -#endif struct syscall { int id; @@ -131,47 +123,3 @@ int syscalltbl__strglobmatch_first(struct syscalltbl *tbl, const char *syscall_g *idx = -1; return syscalltbl__strglobmatch_next(tbl, syscall_glob, idx); } - -#else /* HAVE_SYSCALL_TABLE_SUPPORT */ - -#include - -struct syscalltbl *syscalltbl__new(void) -{ - struct syscalltbl *tbl = zalloc(sizeof(*tbl)); - if (tbl) - tbl->audit_machine = audit_detect_machine(); - return tbl; -} - -void syscalltbl__delete(struct syscalltbl *tbl) -{ - free(tbl); -} - -const char *syscalltbl__name(const struct syscalltbl *tbl, int id) -{ - return audit_syscall_to_name(id, tbl->audit_machine); -} - -int syscalltbl__id(struct syscalltbl *tbl, const char *name) -{ - return audit_name_to_syscall(name, tbl->audit_machine); -} - -int syscalltbl__id_at_idx(struct syscalltbl *tbl __maybe_unused, int idx) -{ - return idx; -} - -int syscalltbl__strglobmatch_next(struct syscalltbl *tbl __maybe_unused, - const char *syscall_glob __maybe_unused, int *idx __maybe_unused) -{ - return -1; -} - -int syscalltbl__strglobmatch_first(struct syscalltbl *tbl, const char *syscall_glob, int *idx) -{ - return syscalltbl__strglobmatch_next(tbl, syscall_glob, idx); -} -#endif /* HAVE_SYSCALL_TABLE_SUPPORT */