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21cfdc4aefdef34cc6f4e57bcfac408a7d9e427f
MX_Pmodule/Programming/gcc/5/macosx-version-min.patch
Achim Gsell 90e855cfba Programming/gcc/5/ 
- macOS pafch added
2017-11-20 17:58:21 +01:00

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Index: gcc/config/darwin-c.c
===================================================================
--- gcc/config/darwin-c.c.orig
+++ gcc/config/darwin-c.c
@@ -570,42 +570,180 @@ find_subframework_header (cpp_reader *pf
return 0;
}
-/* Return the value of darwin_macosx_version_min suitable for the
- __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ macro, so '10.4.2'
- becomes 1040 and '10.10.0' becomes 101000. The lowest digit is
- always zero, as is the second lowest for '10.10.x' and above.
- Print a warning if the version number can't be understood. */
+/* Given a version string, return the version as a statically-allocated
+ array of three non-negative integers. If the version string is
+ invalid, return null.
+
+ Version strings must consist of one, two, or three tokens, each
+ separated by a single period. Each token must contain only the
+ characters '0' through '9' and is converted to an equivalent
+ integer. Omitted tokens are treated as zeros. For example:
+
+ "10" becomes {10,0,0}
+ "10.10" becomes {10,10,0}
+ "10.10.1" becomes {10,10,1}
+ "10.000010.1" becomes {10,10,1}
+ "10.010.001" becomes {10,10,1}
+ "000010.10.00001" becomes {10,10,1} */
+
+enum version_components { MAJOR, MINOR, TINY };
+
+static const unsigned long *
+parse_version (const char *version_str)
+{
+ size_t version_len;
+ char *end;
+ static unsigned long version_array[3];
+
+ if (! version_str)
+ return NULL;
+
+ version_len = strlen (version_str);
+ if (version_len < 1)
+ return NULL;
+
+ /* Version string must consist of digits and periods only. */
+ if (strspn (version_str, "0123456789.") != version_len)
+ return NULL;
+
+ if (! ISDIGIT (version_str[0]) || ! ISDIGIT (version_str[version_len - 1]))
+ return NULL;
+
+ version_array[MAJOR] = strtoul (version_str, &end, 10);
+ version_str = end + ((*end == '.') ? 1 : 0);
+
+ /* Version string must not contain adjacent periods. */
+ if (*version_str == '.')
+ return NULL;
+
+ version_array[MINOR] = strtoul (version_str, &end, 10);
+ version_str = end + ((*end == '.') ? 1 : 0);
+
+ version_array[TINY] = strtoul (version_str, &end, 10);
+
+ /* Version string must contain no more than three tokens. */
+ if (*end != '\0')
+ return NULL;
+
+ return version_array;
+}
+
+/* Given a three-component version represented as an array of
+ non-negative integers, return a statically-allocated string suitable
+ for the legacy __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ macro.
+ If the version is invalid and cannot be coerced into a valid form,
+ return null.
+
+ The legacy format is a four-character string -- two chars for the
+ major number and one each for the minor and tiny numbers. Major
+ numbers are zero-padded if necessary. Minor and tiny numbers from
+ 10 through 99 are permitted but are clamped to 9 (for example,
+ {10,9,10} produces "1099"). Versions containing numbers greater
+ than 99 are rejected. */
+
static const char *
-version_as_macro (void)
+version_as_legacy_macro (const unsigned long *version)
{
- static char result[7] = "1000";
- int minorDigitIdx;
+ unsigned long major, minor, tiny;
+ static char result[sizeof "9999"];
+
+ if (! version)
+ return NULL;
+
+ major = version[MAJOR];
+ minor = version[MINOR];
+ tiny = version[TINY];
+
+ if (major > 99 || minor > 99 || tiny > 99)
+ return NULL;
+
+ minor = ((minor > 9) ? 9 : minor);
+ tiny = ((tiny > 9) ? 9 : tiny);
+
+ /* NOTE: Cast result of sizeof so that result of sprintf is not
+ converted to an unsigned type. */
+ if (sprintf (result, "%02lu%lu%lu", major, minor, tiny)
+ != (int) sizeof "9999" - 1)
+ return NULL;
- if (strncmp (darwin_macosx_version_min, "10.", 3) != 0)
+ return result;
+}
+
+/* Given a three-component version represented as an array of
+ non-negative integers, return a statically-allocated string suitable
+ for the modern __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ macro
+ or the __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ macro. If the
+ version is invalid, return null.
+
+ The modern format is a five- or six-character string -- one or two
+ chars for the major number and two each for the minor and tiny
+ numbers, which are zero-padded if necessary (for example, {8,1,0}
+ produces "80100", and {10,10,1} produces "101001"). Versions
+ containing numbers greater than 99 are rejected. */
+
+static const char *
+version_as_modern_macro (const unsigned long *version)
+{
+ unsigned long major, minor, tiny;
+ static char result[sizeof "999999"];
+
+ if (! version)
+ return NULL;
+
+ major = version[MAJOR];
+ minor = version[MINOR];
+ tiny = version[TINY];
+
+ if (major > 99 || minor > 99 || tiny > 99)
+ return NULL;
+
+ /* NOTE: 'sizeof ((x > y) ? "foo" : "bar")' returns size of char
+ pointer instead of char array, so use
+ '(x > y) ? sizeof "foo" : sizeof "bar"' instead. */
+ /* NOTE: Cast result of sizeof so that result of sprintf is not
+ converted to an unsigned type. */
+ if (sprintf (result, "%lu%02lu%02lu", major, minor, tiny)
+ != (int) ((major > 9) ? sizeof "999999" : sizeof "99999") - 1)
+ return NULL;
+
+ return result;
+}
+
+/* Return the value of darwin_macosx_version_min, suitably formatted
+ for the __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ macro. Values
+ representing OS X 10.9 and earlier are encoded using the legacy
+ four-character format, while 10.10 and later use a modern
+ six-character format. (For example, "10.9" produces "1090", and
+ "10.10.1" produces "101001".) If the value is invalid and cannot be
+ coerced into a valid form, print a warning and return "1000". */
+
+static const char *
+macosx_version_as_macro (void)
+{
+ const unsigned long *version_array;
+ const char *version_macro;
+
+ version_array = parse_version (darwin_macosx_version_min);
+ if (! version_array)
goto fail;
- if (! ISDIGIT (darwin_macosx_version_min[3]))
+
+ /* Do not assume that the major number will always be exactly 10. */
+ if (version_array[MAJOR] < 10 || version_array[MAJOR] > 10)
goto fail;
- minorDigitIdx = 3;
- result[2] = darwin_macosx_version_min[minorDigitIdx++];
- if (ISDIGIT (darwin_macosx_version_min[minorDigitIdx]))
- {
- /* Starting with OS X 10.10, the macro ends '00' rather than '0',
- i.e. 10.10.x becomes 101000 rather than 10100. */
- result[3] = darwin_macosx_version_min[minorDigitIdx++];
- result[4] = '0';
- result[5] = '0';
- result[6] = '\0';
- }
- if (darwin_macosx_version_min[minorDigitIdx] != '\0'
- && darwin_macosx_version_min[minorDigitIdx] != '.')
+ if (version_array[MAJOR] == 10 && version_array[MINOR] < 10)
+ version_macro = version_as_legacy_macro (version_array);
+ else
+ version_macro = version_as_modern_macro (version_array);
+
+ if (! version_macro)
goto fail;
- return result;
+ return version_macro;
fail:
error ("unknown value %qs of -mmacosx-version-min",
- darwin_macosx_version_min);
+ darwin_macosx_version_min);
return "1000";
}
@@ -627,7 +765,7 @@ darwin_cpp_builtins (cpp_reader *pfile)
builtin_define ("__CONSTANT_CFSTRINGS__");
builtin_define_with_value ("__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__",
- version_as_macro(), false);
+ macosx_version_as_macro(), false);
/* Since we do not (at 4.6) support ObjC gc for the NeXT runtime, the
following will cause a syntax error if one tries to compile gc attributed
Index: gcc/testsuite/gcc.dg/darwin-minversion-10.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-10.c
@@ -0,0 +1,16 @@
+/* PR target/63810: Test that a version with a zero-padded minor
+ number < 10 and a zero-padded tiny number < 10 produces the correct
+ four-character macro. */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=10.07.02" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 1072
+ fail me;
+#endif
+ return 0;
+}
Index: gcc/testsuite/gcc.dg/darwin-minversion-11.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-11.c
@@ -0,0 +1,15 @@
+/* PR target/63810: Test that a version with outrageous zero-padding and
+ a minor number > 9 still produces a six-character macro. */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=00010.010.0000098" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 101098
+ fail me;
+#endif
+ return 0;
+}
Index: gcc/testsuite/gcc.dg/darwin-minversion-12.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-12.c
@@ -0,0 +1,15 @@
+/* PR target/63810: Test that a version with outrageous zero-padding and
+ a minor number < 10 still produces a four-character macro. */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=010.008.000031" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 1089
+ fail me;
+#endif
+ return 0;
+}
Index: gcc/testsuite/gcc.dg/darwin-minversion-3.c
===================================================================
--- gcc/testsuite/gcc.dg/darwin-minversion-3.c.orig
+++ gcc/testsuite/gcc.dg/darwin-minversion-3.c
@@ -1,11 +1,11 @@
-/* Test that most-minor versions greater than 9 work. */
-/* { dg-options "-mmacosx-version-min=10.4.10" } */
+/* Test that most minor versions < 10 work. */
+/* { dg-options "-mmacosx-version-min=10.4.1" } */
/* { dg-do compile { target *-*-darwin* } } */
int
main ()
{
-#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 1040
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 1041
fail me;
#endif
return 0;
Index: gcc/testsuite/gcc.dg/darwin-minversion-4.c
===================================================================
--- gcc/testsuite/gcc.dg/darwin-minversion-4.c.orig
+++ gcc/testsuite/gcc.dg/darwin-minversion-4.c
@@ -1,11 +1,11 @@
-/* Test that major versions greater than 9 work and have the additional 0. */
-/* { dg-options "-mmacosx-version-min=10.10.0" } */
+/* Test that minor versions > 9 produce a six-character macro. */
+/* { dg-options "-mmacosx-version-min=10.10.1" } */
/* { dg-do compile { target *-*-darwin* } } */
int
main ()
{
-#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 101000
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 101001
fail me;
#endif
return 0;
Index: gcc/testsuite/gcc.dg/darwin-minversion-5.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-5.c
@@ -0,0 +1,16 @@
+/* PR target/63810: Test that a version with minor number < 10 and tiny
+ number > 9 produces a four-character macro with the tiny number
+ clamped to 9. */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=10.9.10" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 1099
+ fail me;
+#endif
+ return 0;
+}
Index: gcc/testsuite/gcc.dg/darwin-minversion-6.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-6.c
@@ -0,0 +1,15 @@
+/* PR target/63810: Test that tiny numbers are preserved in
+ six-character macros. */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=10.10.11" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 101011
+ fail me;
+#endif
+ return 0;
+}
Index: gcc/testsuite/gcc.dg/darwin-minversion-7.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-7.c
@@ -0,0 +1,15 @@
+/* PR target/63810: Test that tiny numbers < 10 are preserved in
+ four-character macros. */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=10.9.1" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 1091
+ fail me;
+#endif
+ return 0;
+}
Index: gcc/testsuite/gcc.dg/darwin-minversion-8.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-8.c
@@ -0,0 +1,15 @@
+/* PR target/63810: Test that a version with minor number > 9 and no
+ tiny number produces a six-character macro ending in "00". */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=10.11" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 101100
+ fail me;
+#endif
+ return 0;
+}
Index: gcc/testsuite/gcc.dg/darwin-minversion-9.c
===================================================================
--- /dev/null
+++ gcc/testsuite/gcc.dg/darwin-minversion-9.c
@@ -0,0 +1,15 @@
+/* PR target/63810: Test that a version with a zero-padded minor
+ number < 10 produces a four-character macro. */
+/* Added by Lawrence Velázquez <larryv@macports.org>. */
+
+/* { dg-options "-mmacosx-version-min=10.08.4" } */
+/* { dg-do compile { target *-*-darwin* } } */
+
+int
+main ()
+{
+#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ != 1084
+ fail me;
+#endif
+ return 0;
+}
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