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[89.179.104.69]) by smtp.gmail.com with ESMTPSA id k8-20020a05651210c800b004acff58a951sm2182370lfg.133.2022.12.05.10.01.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Dec 2022 10:01:54 -0800 (PST) X-Google-Original-From: Maxim Kokryashkin To: tarantool-patches@dev.tarantool.org, sergos@tarantool.org, skaplun@tarantool.org Date: Mon, 5 Dec 2022 21:01:51 +0300 Message-Id: <20221205180151.417737-1-m.kokryashkin@tarantool.org> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Tarantool-patches] [PATCH luajit v3] memprof: introduce cli flag to run dump parser X-BeenThere: tarantool-patches@dev.tarantool.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Tarantool development patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Maxim Kokryashkin via Tarantool-patches Reply-To: Maxim Kokryashkin Errors-To: tarantool-patches-bounces@dev.tarantool.org Sender: "Tarantool-patches" It is really inconvenient to use a standalone shell script to parse memprof dump. That is why this commit introduces a CLI flag for tools to the LuaJIT, so now it is possible to parse memprof dump as simple as: ``` luajit -tm memprof.bin ``` Closes tarantool/tarantool#5688 --- Changes in v3: - Fixed comments as per review by Sergey Branch: https://github.com/tarantool/luajit/tree/fckxorg/gh-5688-cli-for-memprof-parse PR: https://github.com/tarantool/tarantool/pull/8002 Issue: https://github.com/tarantool/tarantool/issues/5688 CMakeLists.txt | 9 +-- Makefile.original | 7 +- src/CMakeLists.txt | 5 ++ src/lj_tools_conf.h.in | 7 ++ src/luajit.c | 63 ++++++++++++++++-- .../gh-5688-memprof-cli-flag.test.lua | 64 +++++++++++++++++++ tools/CMakeLists.txt | 2 + 7 files changed, 145 insertions(+), 12 deletions(-) create mode 100644 src/lj_tools_conf.h.in create mode 100644 test/tarantool-tests/gh-5688-memprof-cli-flag.test.lua diff --git a/CMakeLists.txt b/CMakeLists.txt index c870cce2..97d0d42f 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -263,6 +263,11 @@ endif() # related compiler and linker flags passed. This should be done # the right way later. +# --- Tools -------------------------------------------------------------------- + +add_subdirectory(tools) +set(LUAJIT_TOOLS_DIR "${LUAJIT_TOOLS_DIR}") + # --- Main source tree --------------------------------------------------------- add_subdirectory(src) @@ -271,10 +276,6 @@ add_subdirectory(src) add_subdirectory(etc) -# --- Tools -------------------------------------------------------------------- - -add_subdirectory(tools) - # --- Testing source tree ------------------------------------------------------ # Auxiliary options for testing. diff --git a/Makefile.original b/Makefile.original index 0c92df9e..bb0ab73d 100644 --- a/Makefile.original +++ b/Makefile.original @@ -104,6 +104,7 @@ FILES_UTILSLIB= avl.lua bufread.lua symtab.lua FILES_MEMPROFLIB= parse.lua humanize.lua FILES_TOOLSLIB= memprof.lua FILE_TMEMPROF= luajit-parse-memprof +FILE_TOOLSHEADER= lj_tools_conf.h.in ifeq (,$(findstring Windows,$(OS))) HOST_SYS:= $(shell uname -s) @@ -193,7 +194,7 @@ clean: $(RM) tools/$(FILE_TMEMPROF) $(MAKE) -C src -f Makefile.original clean -tools: tools/$(FILE_TMEMPROF) +tools: tools/$(FILE_TMEMPROF) src/$(FILE_TOOLSHEADER) # FIXME: This is an ugly hack to manually configure an auxiliary # tools/luajit-parse-memprof. This file should go away in scope of @@ -204,6 +205,10 @@ tools/$(FILE_TMEMPROF): src/luajit $@.in > $@ @chmod +x $@ +src/$(FILE_TOOLSHEADER): + @sed -e "s|@LUAJIT_TOOLS_DIR@|$(realpath tools)|" \ + $@.in > $@ + .PHONY: all install amalg clean tools ############################################################################## diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index dffc0a4d..17674a41 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -145,6 +145,8 @@ make_source_list(SOURCES_CORE_NO_JIT_FFI ${SOURCES_UTILS} ) +configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lj_tools_conf.h.in ${CMAKE_CURRENT_SOURCE_DIR}/lj_tools_conf.h) + set(SOURCES_CORE ${SOURCES_CORE_NO_JIT_FFI}) # Build JIT sources if JIT support is enabled. @@ -251,6 +253,9 @@ add_custom_target( jit/vmdef.lua ) +# --- Generate luajit tools config header ------------------------------------- +configure_file(${CMAKE_CURRENT_SOURCE_DIR}/lj_tools_conf.h.in ${CMAKE_CURRENT_SOURCE_DIR}/lj_tools_conf.h) + # --- Generate core and VM object files --------------------------------------- # Virtual machine. diff --git a/src/lj_tools_conf.h.in b/src/lj_tools_conf.h.in new file mode 100644 index 00000000..9f9a2e49 --- /dev/null +++ b/src/lj_tools_conf.h.in @@ -0,0 +1,7 @@ +#ifndef LJ_TOOLS_CONF_H +#define LJ_TOOLS_CONF_H + +#define TOOLS_PATH "@LUAJIT_TOOLS_DIR@/?.lua" +#define PARSER_PATH "@LUAJIT_TOOLS_DIR@/memprof.lua" + +#endif diff --git a/src/luajit.c b/src/luajit.c index 1ca24301..bd9ae8f3 100644 --- a/src/luajit.c +++ b/src/luajit.c @@ -19,6 +19,8 @@ #include "lj_arch.h" +#include "lj_tools_conf.h" + #if LJ_TARGET_POSIX #include #define lua_stdin_is_tty() isatty(0) @@ -72,6 +74,7 @@ static void print_usage(void) " -O[opt] Control LuaJIT optimizations.\n" " -i Enter interactive mode after executing " LUA_QL("script") ".\n" " -v Show version information.\n" + " -t[cmd] Execute tool.\n" " -E Ignore environment variables.\n" " -- Stop handling options.\n" " - Execute stdin and stop handling options.\n", stderr); @@ -266,13 +269,9 @@ static void dotty(lua_State *L) progname = oldprogname; } -static int handle_script(lua_State *L, char **argx) +static int call_script(lua_State *L, const char *fname) { - int status; - const char *fname = argx[0]; - if (strcmp(fname, "-") == 0 && strcmp(argx[-1], "--") != 0) - fname = NULL; /* stdin */ - status = luaL_loadfile(L, fname); + int status = luaL_loadfile(L, fname); if (status == LUA_OK) { /* Fetch args from arg table. LUA_INIT or -e might have changed them. */ int narg = 0; @@ -290,6 +289,16 @@ static int handle_script(lua_State *L, char **argx) } status = docall(L, narg, 0); } + return status; +} + +static int handle_script(lua_State *L, char **argx) +{ + int status; + const char *fname = argx[0]; + if (strcmp(fname, "-") == 0 && strcmp(argx[-1], "--") != 0) + fname = NULL; /* stdin */ + status = call_script(L, fname); return report(L, status); } @@ -361,6 +370,15 @@ static int dojitcmd(lua_State *L, const char *cmd) return runcmdopt(L, opt ? opt+1 : opt); } +static int dotoolcmd(lua_State *L, const char *cmd) +{ + if(strcmp(cmd, "m") == 0) { + const int status = call_script(L, PARSER_PATH); + return report(L, status); + } + return -1; +} + /* Optimization flags. */ static int dojitopt(lua_State *L, const char *opt) { @@ -390,6 +408,26 @@ static int dobytecode(lua_State *L, char **argv) return -1; } +/* +** On most Linux distros, it is the default value for the +** maximum length of a string passed to `execve`. +** However, there is no common value for other OSes, so +** the size of 32 default memory pages is adopted. +**/ +#define MAX_ENV_VAR 32 * 4096 + +static int update_env_var(const char *name, const char *value) +{ + char env_buf[MAX_ENV_VAR] = ""; + const char *env = getenv(name); + if (env == NULL) { + return setenv(name, value, 0); + } else { + strcpy(env_buf, env); + return setenv(name, strcat(env_buf, value), 0); + } +} + /* check that argument has no extra characters at the end */ #define notail(x) {if ((x)[2] != '\0') return -1;} @@ -398,6 +436,7 @@ static int dobytecode(lua_State *L, char **argv) #define FLAGS_EXEC 4 #define FLAGS_OPTION 8 #define FLAGS_NOENV 16 +#define FLAGS_TOOL 32 static int collectargs(char **argv, int *flags) { @@ -419,6 +458,12 @@ static int collectargs(char **argv, int *flags) notail(argv[i]); *flags |= FLAGS_VERSION; break; + case 't': + *flags |= FLAGS_TOOL; + if (argv[i][2] == '\0') return -1; + if (argv[i + 1] == NULL) return -1; + update_env_var("LUA_PATH", TOOLS_PATH); + return i + 1; case 'e': *flags |= FLAGS_EXEC; case 'j': /* LuaJIT extension */ @@ -474,6 +519,10 @@ static int runargs(lua_State *L, char **argv, int argn) return 1; break; } + case 't': { /* Tarantool's fork extension. */ + const char *cmd = argv[i] + 2; + return dotoolcmd(L, cmd) == LUA_OK; + } case 'O': /* LuaJIT extension. */ if (dojitopt(L, argv[i] + 2)) return 1; @@ -535,7 +584,7 @@ static int pmain(lua_State *L) luaL_openlibs(L); lua_gc(L, LUA_GCRESTART, -1); - createargtable(L, argv, s->argc, argn); + createargtable(L, argv, s->argc, (flags & FLAGS_TOOL) ? argn - 1 : argn); if (!(flags & FLAGS_NOENV)) { s->status = handle_luainit(L); diff --git a/test/tarantool-tests/gh-5688-memprof-cli-flag.test.lua b/test/tarantool-tests/gh-5688-memprof-cli-flag.test.lua new file mode 100644 index 00000000..ba2d0219 --- /dev/null +++ b/test/tarantool-tests/gh-5688-memprof-cli-flag.test.lua @@ -0,0 +1,64 @@ +local utils = require('utils') + +-- XXX: The patch is for luajit only, and it doesn't +-- work on Tarantool. +-- luacheck: no global +utils.skipcond( + (jit.arch ~= 'x86' and jit.arch ~= 'x64') or _TARANTOOL, + jit.arch..' architecture is NIY for memprof' +) + +local tap = require('tap') + +local test = tap.test('gh-5688-memprof-cli-flag') +test:plan(2) + +jit.off() +jit.flush() + +local table_new = require 'table.new' + +local TMP_BINFILE = utils.profilename('memprofdata.tmp.bin') +local BAD_PATH = utils.profilename('bad-path-tmp.bin') +local EXECUTABLE = utils.luacmd(arg) + +local function default_payload() + -- Preallocate table to avoid table array part reallocations. + local _ = table_new(20, 0) + + -- Want too see 20 objects here. + for i = 1, 20 do + -- Try to avoid crossing with "test" module objects. + _[i] = 'memprof-str-'..i + end + + _ = nil + -- VMSTATE == GC, reported as INTERNAL. + collectgarbage() +end + +local function generate_output(filename, payload) + -- Clean up all garbage to avoid pollution of free. + collectgarbage() + + local res, err = misc.memprof.start(filename) + -- Should start succesfully. + assert(res, err) + + payload() + + res, err = misc.memprof.stop() + -- Should stop succesfully. + assert(res, err) +end + +generate_output(TMP_BINFILE, default_payload) + +local errcode = os.execute(EXECUTABLE .. ' -tm ' .. BAD_PATH) +test:ok(errcode ~= 0, 'binfile does not exist') + +errcode = os.execute(EXECUTABLE .. ' -tm ' .. TMP_BINFILE) +test:ok(errcode == 0, 'memprof binfile parsing') + +os.remove(TMP_BINFILE) +os.exit(test:check() and 0 or 1) diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt index dd7ec6bd..e2e97b63 100644 --- a/tools/CMakeLists.txt +++ b/tools/CMakeLists.txt @@ -16,6 +16,7 @@ else() # path where LuaJIT binary is located. set(LUAJIT_TOOLS_BIN ${LUAJIT_BINARY_DIR}/${LUAJIT_CLI_NAME}) set(LUAJIT_TOOLS_DIR ${CMAKE_CURRENT_SOURCE_DIR}) + set(LUAJIT_TOOLS_DIR ${LUAJIT_TOOLS_DIR} PARENT_SCOPE) # XXX: Unfortunately, there is no convenient way to set # particular permissions to the output file via CMake. # Furthermore, I even failed to copy the given file to the same @@ -77,6 +78,7 @@ else() " set(LUAJIT_TOOLS_BIN ${CMAKE_INSTALL_PREFIX}/bin/${LUAJIT_CLI_NAME}) set(LUAJIT_TOOLS_DIR ${CMAKE_INSTALL_PREFIX}/${LUAJIT_DATAROOTDIR}) + set(LUAJIT_TOOLS_DIR ${LUAJIT_TOOLS_DIR} PARENT_SCOPE) configure_file(${CMAKE_CURRENT_SOURCE_DIR}/luajit-parse-memprof.in ${PROJECT_BINARY_DIR}/luajit-parse-memprof @ONLY ESCAPE_QUOTES) file(INSTALL ${PROJECT_BINARY_DIR}/luajit-parse-memprof -- 2.38.1