keeping upto date with upstream.

Author: ianamason

Makefile

@@ -35,7 +35,7 @@ AOBJS = $(LIBC_OBJS)
 LOBJS = $(LIBC_OBJS:.o=.lo)
 GENH = obj/include/bits/alltypes.h obj/include/bits/syscall.h
 GENH_INT = obj/src/internal/version.h
-IMPH = $(addprefix $(srcdir)/, src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h)
+IMPH = $(addprefix $(srcdir)/, src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/locale_impl.h src/internal/libc.h)
 
 LDFLAGS =
 LDFLAGS_AUTO =

VERSION

@@ -1 +1 @@
-1.1.15
+1.1.16

WHATSNEW

@@ -1730,3 +1730,49 @@ arch-specific bugs fixed:
 - broken posix_fadvise on arm and powerpc (32-bit)
 - thread structure/dtv corruption on powerpc at thread startup
 - various wrong mips and powerpc ioctl and termios constant values
+
+
+
+1.1.16 release notes
+
+new features:
+- s390x (64-bit S/390) port
+- pthread_setname_np extension function
+- limited pthread_setattr_default_np function to set stack size defaults
+- header-level support for linux 4.7, 4.8, and 4.9 features
+- confstr _CS_V6_ENV and _CS_V7_ENV items
+
+compatibility:
+- public prototypes for abi-compat *_unlocked symbols, etc.
+- fflush_unlocked(NULL) now works
+- resolv.h __RES version macro now matches supported APIs
+- workaround for gdb bugs backtracing across signals on x86_64
+- anchors ^ and $ are now accepted in BRE subexpressions
+- building for thumb2-only arm isa levels is now possible
+
+bugs fixed:
+- integer overflows in regexec buffer allocation (CVE-2016-8859)
+- failure of regexec to report matches at offsets past INT_MAX
+- static-pie executables with initialized thread-local storage crashed
+- printf failed to catch EOVERFLOW in some cases, wrongly produced it in others
+- printf produced wrong output, result for float with precision near INT_MAX
+- printf produced wrong results with alt-form octal, zero flag, & field width
+- printf float rounding was wrong for some midpoint cases
+- swprintf printed junk after internal (256-byte) buffer filled up
+- strtod family rounded incorrectly in several corner cases
+- getmntent failed to handle long records
+- getopt_long_only wrongly treated "--" as an option
+- asctime output wrongly varied by locale
+- strftime %y specifier produced wrong output for negative tm_year
+- time zone names quoted with <> were misparsed
+- corner case integer overflow in tm_year for some date conversions
+- failure to load shared libs whose names were prefixes of standard lib names
+- wrong error codes for several failure cases in various functions
+- various asymptomatic undefined behavior
+- various minor namespace issues in headers
+
+arch-specific bugs fixed:
+- tcsetattr regression on mips (completely non-working)
+- wrong pread/pwrite syscall calling convention on sh
+- wrong preadv2/pwritev2 syscall numbers on x32
+- mrand48/jrand48 produced wrong-signedness results on 64-bit archs

arch/aarch64/bits/syscall.h.in

@@ -271,4 +271,7 @@
 #define __NR_copy_file_range 285
 #define __NR_preadv2 286
 #define __NR_pwritev2 287
+#define __NR_pkey_mprotect 288
+#define __NR_pkey_alloc 289
+#define __NR_pkey_free 290
 

arch/arm/atomic_arch.h

@@ -1,5 +1,11 @@
-__attribute__((__visibility__("hidden")))
-extern const void *__arm_atomics[3]; /* gettp, cas, barrier */
+#if __ARM_ARCH_4__ || __ARM_ARCH_4T__ || __ARM_ARCH == 4
+#define BLX "mov lr,pc\n\tbx"
+#else
+#define BLX "blx"
+#endif
+
+extern uintptr_t __attribute__((__visibility__("hidden")))
+	__a_cas_ptr, __a_barrier_ptr;
 
 #if ((__ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \
  || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ ||  __ARM_ARCH >= 7
@@ -42,11 +48,12 @@ static inline int a_cas(volatile int *p, int t, int s)
 		register int r0 __asm__("r0") = t;
 		register int r1 __asm__("r1") = s;
 		register volatile int *r2 __asm__("r2") = p;
+		register uintptr_t r3 __asm__("r3") = __a_cas_ptr;
 		int old;
 		__asm__ __volatile__ (
-			"bl __a_cas"
-			: "+r"(r0) : "r"(r1), "r"(r2)
-			: "memory", "r3", "lr", "ip", "cc" );
+			BLX " r3"
+			: "+r"(r0), "+r"(r3) : "r"(r1), "r"(r2)
+			: "memory", "lr", "ip", "cc" );
 		if (!r0) return t;
 		if ((old=*p)!=t) return old;
 	}
@@ -58,8 +65,8 @@ static inline int a_cas(volatile int *p, int t, int s)
 #define a_barrier a_barrier
 static inline void a_barrier()
 {
-	__asm__ __volatile__("bl __a_barrier"
-		: : : "memory", "cc", "ip", "lr" );
+	register uintptr_t ip __asm__("ip") = __a_barrier_ptr;
+	__asm__ __volatile__( BLX " ip" : "+r"(ip) : : "memory", "cc", "lr" );
 }
 #endif
 

arch/arm/bits/limits.h

@@ -1,6 +1,5 @@
 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
  || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
-#define PAGE_SIZE 4096
 #define LONG_BIT 32
 #endif
 

arch/arm/bits/syscall.h.in

@@ -347,6 +347,9 @@
 #define __NR_copy_file_range	391
 #define __NR_preadv2	392
 #define __NR_pwritev2	393
+#define __NR_pkey_mprotect	394
+#define __NR_pkey_alloc	395
+#define __NR_pkey_free	396
 
 #define __ARM_NR_breakpoint	0x0f0001
 #define __ARM_NR_cacheflush	0x0f0002

arch/arm/pthread_arch.h

@@ -10,15 +10,17 @@ static inline pthread_t __pthread_self()
 
 #else
 
-static inline pthread_t __pthread_self()
-{
-#ifdef __clang__
-	char *p;
-	__asm__ __volatile__ ( "bl __a_gettp\n\tmov %0,r0" : "=r"(p) : : "cc", "r0", "lr" );
+#if __ARM_ARCH_4__ || __ARM_ARCH_4T__ || __ARM_ARCH == 4
+#define BLX "mov lr,pc\n\tbx"
 #else
-	register char *p __asm__("r0");
-	__asm__ __volatile__ ( "bl __a_gettp" : "=r"(p) : : "cc", "lr" );
+#define BLX "blx"
 #endif
+
+static inline pthread_t __pthread_self()
+{
+	extern uintptr_t __attribute__((__visibility__("hidden"))) __a_gettp_ptr;
+	register uintptr_t p __asm__("r0");
+	__asm__ __volatile__ ( BLX " %1" : "=r"(p) : "r"(__a_gettp_ptr) : "cc", "lr" );
 	return (void *)(p+8-sizeof(struct pthread));
 }
 

arch/generic/bits/stdarg.h

@@ -7,25 +7,44 @@
 #endif
 
 #ifdef _GNU_SOURCE
-#define REG_GS          0
-#define REG_FS          1
-#define REG_ES          2
-#define REG_DS          3
-#define REG_EDI         4
-#define REG_ESI         5
-#define REG_EBP         6
-#define REG_ESP         7
-#define REG_EBX         8
-#define REG_EDX         9
-#define REG_ECX         10
-#define REG_EAX         11
-#define REG_TRAPNO      12
-#define REG_ERR         13
-#define REG_EIP         14
-#define REG_CS          15
-#define REG_EFL         16
-#define REG_UESP        17
-#define REG_SS          18
+enum { REG_GS = 0 };
+#define REG_GS REG_GS
+enum { REG_FS = 1 };
+#define REG_FS REG_FS
+enum { REG_ES = 2 };
+#define REG_ES REG_ES
+enum { REG_DS = 3 };
+#define REG_DS REG_DS
+enum { REG_EDI = 4 };
+#define REG_EDI REG_EDI
+enum { REG_ESI = 5 };
+#define REG_ESI REG_ESI
+enum { REG_EBP = 6 };
+#define REG_EBP REG_EBP
+enum { REG_ESP = 7 };
+#define REG_ESP REG_ESP
+enum { REG_EBX = 8 };
+#define REG_EBX REG_EBX
+enum { REG_EDX = 9 };
+#define REG_EDX REG_EDX
+enum { REG_ECX = 10 };
+#define REG_ECX REG_ECX
+enum { REG_EAX = 11 };
+#define REG_EAX REG_EAX
+enum { REG_TRAPNO = 12 };
+#define REG_TRAPNO REG_TRAPNO
+enum { REG_ERR = 13 };
+#define REG_ERR REG_ERR
+enum { REG_EIP = 14 };
+#define REG_EIP REG_EIP
+enum { REG_CS = 15 };
+#define REG_CS REG_CS
+enum { REG_EFL = 16 };
+#define REG_EFL REG_EFL
+enum { REG_UESP = 17 };
+#define REG_UESP REG_UESP
+enum { REG_SS = 18 };
+#define REG_SS REG_SS
 #endif
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)