diff options
author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-03-22 02:28:10 +0000 |
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committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-03-22 02:28:10 +0000 |
commit | 85ddcb935791939d107cf11db7b3839f82b95cb0 (patch) | |
tree | cee3fc46b268f02e2b737427986ffae8b0e241d3 /win32/win32.c | |
parent | 9852802c887b1457dbff4f83e341b768fbfe6a5d (diff) |
merge revision(s) 54737,54740,55792: [Backport #14623]
Support MSVC14 and 15 [Bug #11118]
Search _pioinfo which is not exported after MSVC14.
[Bug #12014] [GH-884]
win32.c: suppress warnings
* win32/win32.c (set_pioinfo_extra): remove "/*" within comment.
* win32/win32.c (set_pioinfo_extra): use more reliable way to search
the position of pioinfo of VC14, and also support debug library of it.
patched by davispuh AT gmail.com
[ruby-core:76644] [Bug #12644]
this fixes also [Bug #12631]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@62884 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'win32/win32.c')
-rw-r--r-- | win32/win32.c | 90 |
1 files changed, 88 insertions, 2 deletions
diff --git a/win32/win32.c b/win32/win32.c index 3f189b3a6c..9c25c939f1 100644 --- a/win32/win32.c +++ b/win32/win32.c @@ -2320,6 +2320,24 @@ typedef struct { #endif /* License: Ruby's */ +#if RUBY_MSVCRT_VERSION >= 140 +typedef char lowio_text_mode; +typedef char lowio_pipe_lookahead[3]; + +typedef struct { + CRITICAL_SECTION lock; + intptr_t osfhnd; // underlying OS file HANDLE + __int64 startpos; // File position that matches buffer start + unsigned char osfile; // Attributes of file (e.g., open in text mode?) + lowio_text_mode textmode; + lowio_pipe_lookahead _pipe_lookahead; + + uint8_t unicode : 1; // Was the file opened as unicode? + uint8_t utf8translations : 1; // Buffer contains translations other than CRLF + uint8_t dbcsBufferUsed : 1; // Is the dbcsBuffer in use? + char dbcsBuffer; // Buffer for the lead byte of DBCS when converting from DBCS to Unicode +} ioinfo; +#else typedef struct { intptr_t osfhnd; /* underlying OS file HANDLE */ char osfile; /* attributes of file (e.g., open in text mode?) */ @@ -2331,20 +2349,25 @@ typedef struct { char pipech2[2]; #endif } ioinfo; +#endif #if !defined _CRTIMP || defined __MINGW32__ #undef _CRTIMP #define _CRTIMP __declspec(dllimport) #endif +#if RUBY_MSVCRT_VERSION >= 140 +static ioinfo ** __pioinfo = NULL; +#define IOINFO_L2E 6 +#else EXTERN_C _CRTIMP ioinfo * __pioinfo[]; +#define IOINFO_L2E 5 +#endif static inline ioinfo* _pioinfo(int); -#define IOINFO_L2E 5 #define IOINFO_ARRAY_ELTS (1 << IOINFO_L2E) #define _osfhnd(i) (_pioinfo(i)->osfhnd) #define _osfile(i) (_pioinfo(i)->osfile) -#define _pipech(i) (_pioinfo(i)->pipech) #define rb_acrt_lowio_lock_fh(i) EnterCriticalSection(&_pioinfo(i)->lock) #define rb_acrt_lowio_unlock_fh(i) LeaveCriticalSection(&_pioinfo(i)->lock) @@ -2355,6 +2378,68 @@ static size_t pioinfo_extra = 0; /* workaround for VC++8 SP1 */ static void set_pioinfo_extra(void) { +#if RUBY_MSVCRT_VERSION >= 140 +# define FUNCTION_RET 0xc3 /* ret */ +# ifdef _DEBUG +# define UCRTBASE "ucrtbased.dll" +# else +# define UCRTBASE "ucrtbase.dll" +# endif + /* get __pioinfo addr with _isatty */ + char *p = (char*)get_proc_address(UCRTBASE, "_isatty", NULL); + char *pend = p; + /* _osfile(fh) & FDEV */ + +# if _WIN64 + int32_t rel; + char *rip; + /* add rsp, _ */ +# define FUNCTION_BEFORE_RET_MARK "\x48\x83\xc4" +# define FUNCTION_SKIP_BYTES 1 +# ifdef _DEBUG + /* lea rcx,[__pioinfo's addr in RIP-relative 32bit addr] */ +# define PIOINFO_MARK "\x48\x8d\x0d" +# else + /* lea rdx,[__pioinfo's addr in RIP-relative 32bit addr] */ +# define PIOINFO_MARK "\x48\x8d\x15" +# endif + +# else /* x86 */ + /* pop ebp */ +# define FUNCTION_BEFORE_RET_MARK "\x5d" +# define FUNCTION_SKIP_BYTES 0 + /* mov eax,dword ptr [eax*4+100EB430h] */ +# define PIOINFO_MARK "\x8B\x04\x85" +# endif + if (p) { + for (pend += 10; pend < p + 300; pend++) { + // find end of function + if (memcmp(pend, FUNCTION_BEFORE_RET_MARK, sizeof(FUNCTION_BEFORE_RET_MARK) - 1) == 0 && + *(pend + (sizeof(FUNCTION_BEFORE_RET_MARK) - 1) + FUNCTION_SKIP_BYTES) & FUNCTION_RET == FUNCTION_RET) { + // search backwards from end of function + for (pend -= (sizeof(PIOINFO_MARK) - 1); pend > p; pend--) { + if (memcmp(pend, PIOINFO_MARK, sizeof(PIOINFO_MARK) - 1) == 0) { + p = pend; + goto found; + } + } + break; + } + } + } + fprintf(stderr, "unexpected " UCRTBASE "\n"); + _exit(1); + + found: + p += sizeof(PIOINFO_MARK) - 1; +#if _WIN64 + rel = *(int32_t*)(p); + rip = p + sizeof(int32_t); + __pioinfo = (ioinfo**)(rip + rel); +#else + __pioinfo = *(ioinfo***)(p); +#endif +#else int fd; fd = _open("NUL", O_RDONLY); @@ -2369,6 +2454,7 @@ set_pioinfo_extra(void) /* not found, maybe something wrong... */ pioinfo_extra = 0; } +#endif } #else #define pioinfo_extra 0 |