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42395a1912
the un-mprotect() after run was severly off the limits. Also in tcc.c:main: do not confuse errors with non-zero results from tcc_run()
416 lines
14 KiB
C
416 lines
14 KiB
C
/*
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* TCC - Tiny C Compiler
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*
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* Copyright (c) 2001-2004 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "tcc.h"
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#if ONE_SOURCE
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# include "libtcc.c"
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#endif
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#include "tcctools.c"
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static const char help[] =
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"Tiny C Compiler "TCC_VERSION" - Copyright (C) 2001-2006 Fabrice Bellard\n"
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"Usage: tcc [options...] [-o outfile] [-c] infile(s)...\n"
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" tcc [options...] -run infile (or --) [arguments...]\n"
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"General options:\n"
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" -c compile only - generate an object file\n"
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" -o outfile set output filename\n"
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" -run run compiled source\n"
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" -fflag set or reset (with 'no-' prefix) 'flag' (see tcc -hh)\n"
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" -std=c99 Conform to the ISO 1999 C standard (default).\n"
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" -std=c11 Conform to the ISO 2011 C standard.\n"
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" -Wwarning set or reset (with 'no-' prefix) 'warning' (see tcc -hh)\n"
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" -w disable all warnings\n"
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" -v --version show version\n"
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" -vv show search paths or loaded files\n"
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" -h -hh show this, show more help\n"
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" -bench show compilation statistics\n"
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" - use stdin pipe as infile\n"
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" @listfile read arguments from listfile\n"
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"Preprocessor options:\n"
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" -Idir add include path 'dir'\n"
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" -Dsym[=val] define 'sym' with value 'val'\n"
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" -Usym undefine 'sym'\n"
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" -E preprocess only\n"
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"Linker options:\n"
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" -Ldir add library path 'dir'\n"
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" -llib link with dynamic or static library 'lib'\n"
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" -r generate (relocatable) object file\n"
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" -shared generate a shared library/dll\n"
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" -rdynamic export all global symbols to dynamic linker\n"
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" -soname set name for shared library to be used at runtime\n"
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" -Wl,-opt[=val] set linker option (see tcc -hh)\n"
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"Debugger options:\n"
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" -g generate stab runtime debug info\n"
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" -gdwarf[-x] generate dwarf runtime debug info\n"
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#ifdef TCC_TARGET_PE
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" -g.pdb create .pdb debug database\n"
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#endif
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#ifdef CONFIG_TCC_BCHECK
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" -b compile with built-in memory and bounds checker (implies -g)\n"
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#endif
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#ifdef CONFIG_TCC_BACKTRACE
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" -bt[N] link with backtrace (stack dump) support [show max N callers]\n"
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#endif
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"Misc. options:\n"
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" -x[c|a|b|n] specify type of the next infile (C,ASM,BIN,NONE)\n"
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" -nostdinc do not use standard system include paths\n"
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" -nostdlib do not link with standard crt and libraries\n"
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" -Bdir set tcc's private include/library dir\n"
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" -M[M]D generate make dependency file [ignore system files]\n"
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" -M[M] as above but no other output\n"
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" -MF file specify dependency file name\n"
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#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
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" -m32/64 defer to i386/x86_64 cross compiler\n"
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#endif
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"Tools:\n"
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" create library : tcc -ar [crstvx] lib [files]\n"
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#ifdef TCC_TARGET_PE
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" create def file : tcc -impdef lib.dll [-v] [-o lib.def]\n"
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#endif
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;
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static const char help2[] =
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"Tiny C Compiler "TCC_VERSION" - More Options\n"
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"Special options:\n"
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" -P -P1 with -E: no/alternative #line output\n"
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" -dD -dM with -E: output #define directives\n"
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" -pthread same as -D_REENTRANT and -lpthread\n"
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" -On same as -D__OPTIMIZE__ for n > 0\n"
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" -Wp,-opt same as -opt\n"
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" -include file include 'file' above each input file\n"
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" -isystem dir add 'dir' to system include path\n"
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" -static link to static libraries (not recommended)\n"
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" -dumpversion print version\n"
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" -print-search-dirs print search paths\n"
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" -dt with -run/-E: auto-define 'test_...' macros\n"
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"Ignored options:\n"
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" -arch -C --param -pedantic -pipe -s -traditional\n"
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"-W[no-]... warnings:\n"
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" all turn on some (*) warnings\n"
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" error[=warning] stop after warning (any or specified)\n"
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" write-strings strings are const\n"
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" unsupported warn about ignored options, pragmas, etc.\n"
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" implicit-function-declaration warn for missing prototype (*)\n"
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" discarded-qualifiers warn when const is dropped (*)\n"
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"-f[no-]... flags:\n"
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" unsigned-char default char is unsigned\n"
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" signed-char default char is signed\n"
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" common use common section instead of bss\n"
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" leading-underscore decorate extern symbols\n"
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" ms-extensions allow anonymous struct in struct\n"
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" dollars-in-identifiers allow '$' in C symbols\n"
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" test-coverage create code coverage code\n"
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"-m... target specific options:\n"
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" ms-bitfields use MSVC bitfield layout\n"
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#ifdef TCC_TARGET_ARM
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" float-abi hard/softfp on arm\n"
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#endif
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#ifdef TCC_TARGET_X86_64
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" no-sse disable floats on x86_64\n"
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#endif
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"-Wl,... linker options:\n"
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" -nostdlib do not link with standard crt/libs\n"
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" -[no-]whole-archive load lib(s) fully/only as needed\n"
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" -export-all-symbols same as -rdynamic\n"
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" -export-dynamic same as -rdynamic\n"
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" -image-base= -Ttext= set base address of executable\n"
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" -section-alignment= set section alignment in executable\n"
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#ifdef TCC_TARGET_PE
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" -file-alignment= set PE file alignment\n"
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" -stack= set PE stack reserve\n"
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" -large-address-aware set related PE option\n"
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" -subsystem=[console/windows] set PE subsystem\n"
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" -oformat=[pe-* binary] set executable output format\n"
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"Predefined macros:\n"
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" tcc -E -dM - < nul\n"
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#else
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" -rpath= set dynamic library search path\n"
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" -enable-new-dtags set DT_RUNPATH instead of DT_RPATH\n"
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" -soname= set DT_SONAME elf tag\n"
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#if defined(TCC_TARGET_MACHO)
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" -install_name= set DT_SONAME elf tag (soname macOS alias)\n"
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#endif
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" -Bsymbolic set DT_SYMBOLIC elf tag\n"
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" -oformat=[elf32/64-* binary] set executable output format\n"
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" -init= -fini= -Map= -as-needed -O (ignored)\n"
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"Predefined macros:\n"
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" tcc -E -dM - < /dev/null\n"
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#endif
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"See also the manual for more details.\n"
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;
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static const char version[] =
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"tcc version "TCC_VERSION
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#ifdef TCC_GITHASH
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" "TCC_GITHASH
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#endif
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" ("
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#ifdef TCC_TARGET_I386
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"i386"
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#elif defined TCC_TARGET_X86_64
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"x86_64"
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#elif defined TCC_TARGET_C67
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"C67"
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#elif defined TCC_TARGET_ARM
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"ARM"
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# ifdef TCC_ARM_EABI
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" eabi"
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# ifdef TCC_ARM_HARDFLOAT
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"hf"
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# endif
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# endif
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#elif defined TCC_TARGET_ARM64
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"AArch64"
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#elif defined TCC_TARGET_RISCV64
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"riscv64"
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#endif
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#ifdef TCC_TARGET_PE
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" Windows"
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#elif defined(TCC_TARGET_MACHO)
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" Darwin"
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#elif TARGETOS_FreeBSD || TARGETOS_FreeBSD_kernel
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" FreeBSD"
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#elif TARGETOS_OpenBSD
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" OpenBSD"
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#elif TARGETOS_NetBSD
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" NetBSD"
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#else
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" Linux"
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#endif
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")\n"
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;
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static void print_dirs(const char *msg, char **paths, int nb_paths)
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{
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int i;
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printf("%s:\n%s", msg, nb_paths ? "" : " -\n");
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for(i = 0; i < nb_paths; i++)
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printf(" %s\n", paths[i]);
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}
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static void print_search_dirs(TCCState *s)
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{
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printf("install: %s\n", s->tcc_lib_path);
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/* print_dirs("programs", NULL, 0); */
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print_dirs("include", s->sysinclude_paths, s->nb_sysinclude_paths);
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print_dirs("libraries", s->library_paths, s->nb_library_paths);
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printf("libtcc1:\n %s/%s\n", s->library_paths[0], CONFIG_TCC_CROSSPREFIX TCC_LIBTCC1);
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#if !defined TCC_TARGET_PE && !defined TCC_TARGET_MACHO
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print_dirs("crt", s->crt_paths, s->nb_crt_paths);
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printf("elfinterp:\n %s\n", DEFAULT_ELFINTERP(s));
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#endif
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}
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static void set_environment(TCCState *s)
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{
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char * path;
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path = getenv("C_INCLUDE_PATH");
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if(path != NULL) {
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tcc_add_sysinclude_path(s, path);
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}
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path = getenv("CPATH");
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if(path != NULL) {
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tcc_add_include_path(s, path);
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}
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path = getenv("LIBRARY_PATH");
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if(path != NULL) {
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tcc_add_library_path(s, path);
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}
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}
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static char *default_outputfile(TCCState *s, const char *first_file)
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{
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char buf[1024];
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char *ext;
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const char *name = "a";
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if (first_file && strcmp(first_file, "-"))
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name = tcc_basename(first_file);
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snprintf(buf, sizeof(buf), "%s", name);
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ext = tcc_fileextension(buf);
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#ifdef TCC_TARGET_PE
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if (s->output_type == TCC_OUTPUT_DLL)
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strcpy(ext, ".dll");
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else
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if (s->output_type == TCC_OUTPUT_EXE)
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strcpy(ext, ".exe");
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else
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#endif
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if ((s->just_deps || s->output_type == TCC_OUTPUT_OBJ) && !s->option_r && *ext)
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strcpy(ext, ".o");
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else
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strcpy(buf, "a.out");
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return tcc_strdup(buf);
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}
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static unsigned getclock_ms(void)
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{
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#ifdef _WIN32
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return GetTickCount();
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#else
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv.tv_sec*1000 + (tv.tv_usec+500)/1000;
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#endif
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}
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int main(int argc0, char **argv0)
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{
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TCCState *s, *s1;
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int ret, opt, n = 0, t = 0, done;
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unsigned start_time = 0, end_time = 0;
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const char *first_file;
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int argc; char **argv;
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FILE *ppfp = stdout;
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redo:
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argc = argc0, argv = argv0;
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s = s1 = tcc_new();
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#ifdef CONFIG_TCC_SWITCHES /* predefined options */
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tcc_set_options(s, CONFIG_TCC_SWITCHES);
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#endif
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opt = tcc_parse_args(s, &argc, &argv, 1);
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if (opt < 0)
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return 1;
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if (n == 0) {
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if (opt == OPT_HELP) {
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fputs(help, stdout);
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if (!s->verbose)
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return 0;
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++opt;
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}
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if (opt == OPT_HELP2) {
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fputs(help2, stdout);
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return 0;
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}
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if (opt == OPT_M32 || opt == OPT_M64)
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return tcc_tool_cross(s, argv, opt);
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if (s->verbose)
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printf("%s", version);
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if (opt == OPT_AR)
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return tcc_tool_ar(s, argc, argv);
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#ifdef TCC_TARGET_PE
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if (opt == OPT_IMPDEF)
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return tcc_tool_impdef(s, argc, argv);
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#endif
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if (opt == OPT_V)
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return 0;
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if (opt == OPT_PRINT_DIRS) {
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/* initialize search dirs */
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set_environment(s);
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tcc_set_output_type(s, TCC_OUTPUT_MEMORY);
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print_search_dirs(s);
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return 0;
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}
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if (s->nb_files == 0) {
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tcc_error_noabort("no input files");
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} else if (s->output_type == TCC_OUTPUT_PREPROCESS) {
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if (s->outfile && 0!=strcmp("-",s->outfile)) {
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ppfp = fopen(s->outfile, "wb");
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if (!ppfp)
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tcc_error_noabort("could not write '%s'", s->outfile);
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}
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} else if (s->output_type == TCC_OUTPUT_OBJ && !s->option_r) {
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if (s->nb_libraries)
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tcc_error_noabort("cannot specify libraries with -c");
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else if (s->nb_files > 1 && s->outfile)
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tcc_error_noabort("cannot specify output file with -c many files");
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}
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if (s->nb_errors)
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return 1;
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if (s->do_bench)
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start_time = getclock_ms();
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}
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set_environment(s);
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if (s->output_type == 0)
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s->output_type = TCC_OUTPUT_EXE;
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tcc_set_output_type(s, s->output_type);
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s->ppfp = ppfp;
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if ((s->output_type == TCC_OUTPUT_MEMORY
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|| s->output_type == TCC_OUTPUT_PREPROCESS)
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&& (s->dflag & 16)) { /* -dt option */
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if (t)
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s->dflag |= 32;
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s->run_test = ++t;
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if (n)
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--n;
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}
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/* compile or add each files or library */
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first_file = NULL;
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do {
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struct filespec *f = s->files[n];
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s->filetype = f->type;
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if (f->type & AFF_TYPE_LIB) {
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ret = tcc_add_library_err(s, f->name);
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} else {
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if (1 == s->verbose)
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printf("-> %s\n", f->name);
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if (!first_file)
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first_file = f->name;
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ret = tcc_add_file(s, f->name);
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}
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done = ret || ++n >= s->nb_files;
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} while (!done && (s->output_type != TCC_OUTPUT_OBJ || s->option_r));
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if (s->do_bench)
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end_time = getclock_ms();
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if (s->run_test) {
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t = 0;
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} else if (s->output_type == TCC_OUTPUT_PREPROCESS) {
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;
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} else if (0 == ret) {
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if (s->output_type == TCC_OUTPUT_MEMORY) {
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#ifdef TCC_IS_NATIVE
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ret = tcc_run(s, argc, argv);
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#endif
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} else {
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if (!s->outfile)
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s->outfile = default_outputfile(s, first_file);
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if (!s->just_deps && tcc_output_file(s, s->outfile))
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;
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else if (s->gen_deps)
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gen_makedeps(s, s->outfile, s->deps_outfile);
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}
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}
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done = 1;
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if (t)
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done = 0; /* run more tests with -dt -run */
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else if (s->nb_errors)
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ret = 1;
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else if (n < s->nb_files)
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done = 0; /* compile more files with -c */
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else if (s->do_bench)
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tcc_print_stats(s, end_time - start_time);
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tcc_delete(s);
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if (!done)
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goto redo;
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if (ppfp && ppfp != stdout)
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fclose(ppfp);
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return ret;
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}
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