X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/699a97de988b5b9b54375d79201e72f1c259685c..1d32d911228f87e28c3611f90fd3274717ee6b68:/util.h diff --git a/util.h b/util.h index 660eb91..736f978 100644 --- a/util.h +++ b/util.h @@ -1,7 +1,7 @@ /* util.h * - * Copyright (C) 1991, 1992, 1993, 1999, 2001, 2002, 2003, 2004, 2005 - * by Larry Wall and others + * Copyright (C) 1991, 1992, 1993, 1999, 2001, 2002, 2003, 2004, 2005, + * 2007, by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. @@ -13,7 +13,7 @@ (*(f) == '/' \ || (strchr(f,':') \ || ((*(f) == '[' || *(f) == '<') \ - && (isALNUM((f)[1]) || strchr("$-_]>",(f)[1]))))) + && (isWORDCHAR((f)[1]) || strchr("$-_]>",(f)[1]))))) #else /* !VMS */ # if defined(WIN32) || defined(__CYGWIN__) @@ -27,17 +27,148 @@ || ((f)[0] == '\\' && (f)[1] == '\\') /* UNC path */ \ || ((f)[3] == ':')) /* volume name, currently only sys */ # else /* !NETWARE */ -# if defined(DOSISH) || defined(EPOC) || defined(__SYMBIAN32__) +# if defined(DOSISH) || defined(__SYMBIAN32__) # define PERL_FILE_IS_ABSOLUTE(f) \ (*(f) == '/' \ || ((f)[0] && (f)[1] == ':')) /* drive name */ -# else /* NEITHER DOSISH NOR EPOCISH NOR SYMBIANISH */ -# ifdef MACOS_TRADITIONAL -# define PERL_FILE_IS_ABSOLUTE(f) (strchr(f, ':') && *(f) != ':') -# else /* !MACOS_TRADITIONAL */ -# define PERL_FILE_IS_ABSOLUTE(f) (*(f) == '/') -# endif /* MACOS_TRADITIONAL */ +# else /* NEITHER DOSISH NOR SYMBIANISH */ +# define PERL_FILE_IS_ABSOLUTE(f) (*(f) == '/') # endif /* DOSISH */ # endif /* NETWARE */ # endif /* WIN32 */ #endif /* VMS */ + +/* +=head1 Miscellaneous Functions + +=for apidoc ibcmp + +This is a synonym for (! foldEQ()) + +=for apidoc ibcmp_locale + +This is a synonym for (! foldEQ_locale()) + +=cut +*/ +#define ibcmp(s1, s2, len) cBOOL(! foldEQ(s1, s2, len)) +#define ibcmp_locale(s1, s2, len) cBOOL(! foldEQ_locale(s1, s2, len)) + +/* outside the core, perl.h undefs HAS_QUAD if IV isn't 64-bit + We can't swap this to HAS_QUAD, because the logic here affects the type of + perl_drand48_t below, and that is visible outside of the core. */ +#if defined(U64TYPE) && !defined(USING_MSVC6) +/* use a faster implementation when quads are available, + * but not with VC6 on Windows */ +# define PERL_DRAND48_QUAD +#endif + +#ifdef PERL_DRAND48_QUAD + +/* U64 is only defined under PERL_CORE, but this needs to be visible + * elsewhere so the definition of PerlInterpreter is complete. + */ +typedef U64TYPE perl_drand48_t; + +#else + +struct PERL_DRAND48_T { + U16 seed[3]; +}; + +typedef struct PERL_DRAND48_T perl_drand48_t; + +#endif + +#define PL_RANDOM_STATE_TYPE perl_drand48_t + +#define Perl_drand48_init(seed) (Perl_drand48_init_r(&PL_random_state, (seed))) +#define Perl_drand48() (Perl_drand48_r(&PL_random_state)) + +#ifdef USE_C_BACKTRACE + +typedef struct { + /* The number of frames returned. */ + UV frame_count; + /* The total size of the Perl_c_backtrace, including this header, + * the frames, and the name strings. */ + UV total_bytes; +} Perl_c_backtrace_header; + +typedef struct { + void* addr; /* the program counter at this frame */ + + /* We could use Dl_info (as used by dladdr()) for many of these but + * that would be naughty towards non-dlfcn systems (hi there, Win32). */ + + void* symbol_addr; /* symbol address (hint: try symbol_addr - addr) */ + void* object_base_addr; /* base address of the shared object */ + + /* The offsets are from the beginning of the whole backtrace, + * which makes the backtrace relocatable. */ + STRLEN object_name_offset; /* pathname of the shared object */ + STRLEN object_name_size; /* length of the pathname */ + STRLEN symbol_name_offset; /* symbol name */ + STRLEN symbol_name_size; /* length of the symbol name */ + STRLEN source_name_offset; /* source code file name */ + STRLEN source_name_size; /* length of the source code file name */ + STRLEN source_line_number; /* source code line number */ + + /* OS X notes: atos(1) (more recently, "xcrun atos"), but the C + * API atos() uses is unknown (private "Symbolicator" framework, + * might require Objective-C even if the API would be known). + * Currently we open read pipe to "xcrun atos" and parse the + * output - quite disgusting. And that won't work if the + * Developer Tools isn't installed. */ + + /* FreeBSD notes: execinfo.h exists, but probably would need also + * the library -lexecinfo. BFD exists if the pkg devel/binutils + * has been installed, but there seems to be a known problem that + * the "bfd.h" getting installed refers to "ansidecl.h", which + * doesn't get installed. */ + + /* Win32 notes: as moral equivalents of backtrace() + dladdr(), + * one could possibly first use GetCurrentProcess() + + * SymInitialize(), and then CaptureStackBackTrace() + + * SymFromAddr(). */ + + /* Note that using the compiler optimizer easily leads into much + * of this information, like the symbol names (think inlining), + * and source code locations getting lost or confused. In many + * cases keeping the debug information (-g) is necessary. + * + * Note that for example with gcc you can do both -O and -g. + * + * Note, however, that on some platforms (e.g. OSX + clang (cc)) + * backtrace() + dladdr() works fine without -g. */ + + /* For example: the mere presence of is no guarantee: e.g. + * OS X has that, but BFD does not seem to work on the OSX executables. + * + * Another niceness would be to able to see something about + * the function arguments, however gdb/lldb manage to do that. */ +} Perl_c_backtrace_frame; + +typedef struct { + Perl_c_backtrace_header header; + Perl_c_backtrace_frame frame_info[1]; + /* After the header come: + * (1) header.frame_count frames + * (2) frame_count times the \0-terminated strings (object_name + * and so forth). The frames contain the pointers to the starts + * of these strings, and the lengths of these strings. */ +} Perl_c_backtrace; + +#define Perl_free_c_backtrace(bt) Safefree(bt) + +#endif /* USE_C_BACKTRACE */ + +/* + * Local variables: + * c-indentation-style: bsd + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + * + * ex: set ts=8 sts=4 sw=4 et: + */