Merge tag 'newlib-4.5.0' into main

Newlib snapshot for 4.5.0

Author: keith-packard

newlib/NEWS

@@ -1,3 +1,19 @@
+*** Major changes in newlib version 4.5.0:
+
+- major clean-up of libgloss build including merging a number of platforms
+  into top-level Makefile (moxie, v850, i960, msp430, frv, i386, ...) and
+  removal of dead platforms such as xc16x
+- strverscmp fixed for comparison of digit sequence with non-digits
+- proper locking added from amdgcn
+- numerous improvements to arc support including support of 16-entry 
+  register file
+- long double complex functions are now skipped if long double != double
+- support for POSIX.1-2024 added to features.h
+- arc64: port added for Synopsys Designware ARCv3 ISA
+- sys/xtensa removed and replaced by machine/xtensa and libgloss
+- fixes to powf
+- fixes for building with gcc-15
+
 *** Major changes in newlib version 4.4.0:
 
 - long double support for i386, aarch64, and x86_64 added from FreeBSD

newlib/README

@@ -1,4 +1,4 @@
-                        README for newlib-4.2.0 release
+                        README for newlib-4.5.0 release
            (mostly cribbed from the README in the gdb-4.13 release)
 
 This is `newlib', a simple ANSI C library, math library, and collection
@@ -20,8 +20,8 @@ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 Unpacking and Installation -- quick overview
 ==========================
 
-When you unpack the newlib-4.2.0.tar.gz file, you'll find a directory
-called `newlib-4.2.0', which contains many files.  Interesting ones:
+When you unpack the newlib-4.5.0.tar.gz file, you'll find a directory
+called `newlib-4.5.0', which contains many files.  Interesting ones:
   COPYING*  - License files for the sources
   README    - A common overview of all GNU development projects
   configure - The build script for configuring the source tree
@@ -94,13 +94,13 @@ directory.  If the path to `configure' would be the same as the
 argument to `--srcdir', you can leave out the `--srcdir' option; it
 will be assumed.)
 
-   For example, with version 4.2.0, you can build NEWLIB in a separate
+   For example, with version 4.5.0, you can build NEWLIB in a separate
 directory for a Sun 4 cross m68k-aout environment like this:
 
-     cd newlib-4.2.0
+     cd newlib-4.5.0
      mkdir ../newlib-m68k-aout
      cd ../newlib-m68k-aout
-     ../newlib-4.2.0/configure --host=sun4 --target=m68k-aout
+     ../newlib-4.5.0/configure --host=sun4 --target=m68k-aout
      make
 
    When `configure' builds a configuration using a remote source
@@ -116,8 +116,8 @@ called `configure' (or one of its subdirectories).
 
    The `Makefile' that `configure' generates in each source directory
 also runs recursively.  If you type `make' in a source directory such
-as `newlib-4.2.0' (or in a separate configured directory configured with
-`--srcdir=PATH/newlib-4.2.0'), you will build all the required libraries.
+as `newlib-4.5.0' (or in a separate configured directory configured with
+`--srcdir=PATH/newlib-4.5.0'), you will build all the required libraries.
 
    When you have multiple hosts or targets configured in separate
 directories, you can run `make' on them in parallel (for example, if
@@ -530,7 +530,7 @@ Reporting Bugs
 
 The correct address for reporting bugs found in NEWLIB is
 "[email protected]".  Please email all bug reports to that
-address.  Please include the NEWLIB version number (e.g., newlib-4.2.0),
+address.  Please include the NEWLIB version number (e.g., newlib-4.5.0),
 and how you configured it (e.g., "sun4 host and m68k-aout target").
 Since NEWLIB supports many different configurations, it is important
 that you be precise about this.

newlib/libc/include/sys/features.h

@@ -89,8 +89,8 @@ extern "C" {
  * _ISOC11_SOURCE or gcc -std=c11 or g++ -std=c++11
  *	ISO C11
  *
- * _ISOC2x_SOURCE or gcc -std=c2x or -std=c23 or g++ -std=c++20
- *	ISO C11
+ * _ISOC23_SOURCE or _ISOC2X_SOURCE or gcc -std=c23 or g++ -std=c++20
+ *	ISO C23
  *
  * _ISOC23_SOURCE or gcc -std=c2x or -std=c2x or g++ -std=c++20
  *	ISO C23
@@ -116,6 +116,13 @@ extern "C" {
  *      Zephyr. ISO C + a small selection of other APIs.
  */
 
+/* Remap the old name _ISOC2X_SOURCE to _ISOC23_SOURCE.  */
+#ifdef _ISOC2X_SOURCE
+# undef _ISOC2X_SOURCE
+# undef _ISOC23_SOURCE
+# define _ISOC23_SOURCE	1
+#endif
+
 #ifdef _GNU_SOURCE
 #undef _ATFILE_SOURCE
 #define	_ATFILE_SOURCE		1
@@ -258,10 +265,10 @@ extern "C" {
  *	g++ -std=c++11 or newer (on by default since GCC 6), or with
  *	_ISOC11_SOURCE.
  *
- * __ISO_C_VISIBLE >= 2023
- *	ISO C23; enabled with gcc -std=c23 or -std=c2x or newer,
+ * __ISO_C_VISIBLE >= 2020
+ *	ISO C23; enabled with gcc -std=c23 or newer,
  *	g++ -std=c++20 or newer, or with
- *	_ISOC2X_SOURCE or _ISOC23_SOURCE.
+ *	_ISOC23_SOURCE or _ISOC2x_SOURCE.
  *
  * __ATFILE_VISIBLE
  *	"at" functions; enabled by default, with _ATFILE_SOURCE,
@@ -327,7 +334,7 @@ extern "C" {
 #define _ISOC23_SOURCE      1
 #endif
 
-#if defined(_ISOC23_SOURCE) ||                                          \
+#if defined(_ISOC23_SOURCE) || \
   (__STDC_VERSION__ - 0) > 201710L || (__cplusplus - 0) >= 202002L
 #define __ISO_C_VISIBLE		2023
 #elif defined(_ISOC11_SOURCE) || \

newlib/libc/include/sys/sched.h

@@ -38,6 +38,14 @@ _BEGIN_STD_C
 #define SCHED_SPORADIC 4
 #endif
 
+#if __GNU_VISIBLE
+#define SCHED_IDLE     5
+#define SCHED_BATCH    6
+
+/* Flag to drop realtime policies and negative nice values on fork(). */
+#define SCHED_RESET_ON_FORK     0x40000000
+#endif
+
 /* Scheduling Parameters */
 /* Open Group Specifications Issue 6 */
 

newlib/libc/include/time.h

@@ -92,8 +92,6 @@ struct tm
 #define CLK_TCK CLOCKS_PER_SEC
 #endif
 
-#define CLOCK_REALTIME		((clockid_t) 1)
-
 /* Flag indicating time is "absolute" with respect to the clock
    associated with a time.  Value 4 is historic. */
 
@@ -123,16 +121,20 @@ struct itimerspec {
 #endif
 
 #if __GNU_VISIBLE
-#define CLOCK_REALTIME_COARSE	((clockid_t) 0)
+#define CLOCK_REALTIME_COARSE	(0)
 #endif
 
+#define CLOCK_REALTIME		(1)
+
+/* Manifest Constants, P1003.4b/D8, p. 55 */
+
 #if defined(_POSIX_CPUTIME)
 
 /* When used in a clock or timer function call, this is interpreted as
    the identifier of the CPU_time clock associated with the PROCESS
    making the function call.  */
 
-#define CLOCK_PROCESS_CPUTIME_ID ((clockid_t) 2)
+#define CLOCK_PROCESS_CPUTIME_ID (2)
 
 #endif
 
@@ -142,7 +144,7 @@ struct itimerspec {
     the identifier of the CPU_time clock associated with the THREAD
     making the function call.  */
 
-#define CLOCK_THREAD_CPUTIME_ID	((clockid_t) 3)
+#define CLOCK_THREAD_CPUTIME_ID	(3)
 
 #endif
 
@@ -152,21 +154,21 @@ struct itimerspec {
  *  as a clock whose value cannot be set via clock_settime() and which
  *  cannot have backward clock jumps. */
 
-#define CLOCK_MONOTONIC		((clockid_t) 4)
+#define CLOCK_MONOTONIC		(4)
 
 #endif
 
 #if __GNU_VISIBLE
 
-#define CLOCK_MONOTONIC_RAW	((clockid_t) 5)
+#define CLOCK_MONOTONIC_RAW	(5)
 
-#define CLOCK_MONOTONIC_COARSE	((clockid_t) 6)
+#define CLOCK_MONOTONIC_COARSE	(6)
 
-#define CLOCK_BOOTTIME		((clockid_t) 7)
+#define CLOCK_BOOTTIME		(7)
 
-#define CLOCK_REALTIME_ALARM	((clockid_t) 8)
+#define CLOCK_REALTIME_ALARM	(8)
 
-#define CLOCK_BOOTTIME_ALARM	((clockid_t) 9)
+#define CLOCK_BOOTTIME_ALARM	(9)
 
 #endif
 

newlib/libc/posix/engine.c

@@ -133,11 +133,13 @@ static char *pchar(int ch);
  ==	size_t nmatch, regmatch_t pmatch[], int eflags);
  */
 static int			/* 0 success, REG_NOMATCH failure */
-matcher(struct re_guts *g,
-        char *string,
-        size_t nmatch,
-        regmatch_t pmatch[],
-        int eflags)
+matcher(
+	struct re_guts *g,
+	char *string,
+	size_t nmatch,
+	regmatch_t pmatch[],
+	int eflags
+)
 {
 	char *endp;
 	size_t i;
@@ -343,11 +345,13 @@ matcher(struct re_guts *g,
  ==	char *stop, sopno startst, sopno stopst);
  */
 static char *			/* == stop (success) always */
-dissect(struct match *m,
-        char *start,
-        char *stop,
-        sopno startst,
-        sopno stopst)
+dissect(
+	struct match *m,
+	char *start,
+	char *stop,
+	sopno startst,
+	sopno stopst
+)
 {
 	int i;
 	sopno ss;		/* start sop of current subRE */
@@ -533,12 +537,14 @@ dissect(struct match *m,
  ==	char *stop, sopno startst, sopno stopst, sopno lev);
  */
 static char *			/* == stop (success) or NULL (failure) */
-backref(struct match *m,
-        char *start,
-        char *stop,
-        sopno startst,
-        sopno stopst,
-        sopno lev)		/* PLUS nesting level */
+backref(
+	struct match *m,
+	char *start,
+	char *stop,
+	sopno startst,
+	sopno stopst,
+	sopno lev			/* PLUS nesting level */
+)
 {
 	int i;
 	sopno ss;		/* start sop of current subRE */
@@ -737,11 +743,13 @@ backref(struct match *m,
  ==	char *stop, sopno startst, sopno stopst);
  */
 static char *			/* where tentative match ended, or NULL */
-fast(struct match *m,
-     char *start,
-     char *stop,
-     sopno startst,
-     sopno stopst)
+fast(
+	struct match *m,
+	char *start,
+	char *stop,
+	sopno startst,
+	sopno stopst
+)
 {
 	states st = m->st;
 	states fresh = m->fresh;
@@ -827,11 +835,13 @@ fast(struct match *m,
  ==	char *stop, sopno startst, sopno stopst);
  */
 static char *			/* where it ended */
-slow(struct match *m,
-     char *start,
-     char *stop,
-     sopno startst,
-     sopno stopst)
+slow(
+	struct match *m,
+	char *start,
+	char *stop,
+	sopno startst,
+	sopno stopst
+)
 {
 	states st = m->st;
 	states empty = m->empty;
@@ -922,12 +932,14 @@ slow(struct match *m,
  == #define	NNONCHAR	(CODEMAX-CHAR_MAX)
  */
 static states
-step(struct re_guts *g,
-     sopno start,		/* start state within strip */
-     sopno stop,		/* state after stop state within strip */
-     states bef,		/* states reachable before */
-     int ch,			/* character or NONCHAR code */
-     states aft)		/* states already known reachable after */
+step(
+	struct re_guts *g,
+	sopno start,			/* start state within strip */
+	sopno stop,			/* state after stop state within strip */
+	states bef,			/* states reachable before */
+	int ch,				/* character or NONCHAR code */
+	states aft			/* states already known reachable after */
+)
 {
 	cset *cs;
 	sop s;

newlib/libc/posix/fnmatch.c

@@ -154,7 +154,12 @@ fnmatch(const char *pattern, const char *string, int flags)
 }
 
 static int
-rangematch(const char *pattern, char test, int flags, char **newp)
+rangematch(
+	const char *pattern,
+	char test,
+	int flags,
+	char **newp
+)
 {
 	int negate, ok;
 	char c, c2;