main/musl: cherry-pick fixes and compatibility improvements from upstream

15 files changed, 894 insertions, 1 deletions

diff --git a/main/musl/0001-manually-shrink-wrap-fast-path-in-pthread_once.patch b/main/musl/0001-manually-shrink-wrap-fast-path-in-pthread_once.patch
new file mode 100644
index 0000000000..b0e38d8441
--- /dev/null
+++ b/main/musl/0001-manually-shrink-wrap-fast-path-in-pthread_once.patch
@@ -0,0 +1,53 @@
+From dc95322e18615392eea69de355edd735a15a8f36 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Mon, 20 Oct 2014 00:22:51 -0400
+Subject: [PATCH] manually "shrink wrap" fast path in pthread_once
+
+this change is a workaround for the inability of current compilers to
+perform "shrink wrapping" optimizations. in casual testing, it roughly
+doubled the performance of pthread_once when called on an
+already-finished once control object.
+---
+ src/thread/pthread_once.c | 20 ++++++++++++--------
+ 1 file changed, 12 insertions(+), 8 deletions(-)
+
+diff --git a/src/thread/pthread_once.c b/src/thread/pthread_once.c
+index 7c47385..df655ef 100644
+--- a/src/thread/pthread_once.c
++++ b/src/thread/pthread_once.c
+@@ -8,15 +8,8 @@ static void undo(void *control)
+ 		__wake(control, -1, 1);
+ }
+ 
+-int __pthread_once(pthread_once_t *control, void (*init)(void))
++int __pthread_once_full(pthread_once_t *control, void (*init)(void))
+ {
+-	/* Return immediately if init finished before, but ensure that
+-	 * effects of the init routine are visible to the caller. */
+-	if (*control == 2) {
+-		a_barrier();
+-		return 0;
+-	}
+-
+ 	/* Try to enter initializing state. Four possibilities:
+ 	 *  0 - we're the first or the other cancelled; run init
+ 	 *  1 - another thread is running init; wait
+@@ -43,4 +36,15 @@ int __pthread_once(pthread_once_t *control, void (*init)(void))
+ 	}
+ }
+ 
++int __pthread_once(pthread_once_t *control, void (*init)(void))
++{
++	/* Return immediately if init finished before, but ensure that
++	 * effects of the init routine are visible to the caller. */
++	if (*control == 2) {
++		a_barrier();
++		return 0;
++	}
++	return __pthread_once_full(control, init);
++}
++
+ weak_alias(__pthread_once, pthread_once);
+-- 
+2.2.0
+
diff --git a/main/musl/0002-fix-failure-of-open-to-read-variadic-mode-argument-f.patch b/main/musl/0002-fix-failure-of-open-to-read-variadic-mode-argument-f.patch
new file mode 100644
index 0000000000..887b38b32d
--- /dev/null
+++ b/main/musl/0002-fix-failure-of-open-to-read-variadic-mode-argument-f.patch
@@ -0,0 +1,26 @@
+From 9d836ea7a69a6441fcdca815328d274e4ed6b707 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Thu, 30 Oct 2014 20:03:56 -0400
+Subject: [PATCH] fix failure of open to read variadic mode argument for
+ O_TMPFILE
+
+---
+ src/fcntl/open.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/fcntl/open.c b/src/fcntl/open.c
+index 5e5be1d..3928a6e 100644
+--- a/src/fcntl/open.c
++++ b/src/fcntl/open.c
+@@ -7,7 +7,7 @@ int open(const char *filename, int flags, ...)
+ {
+ 	mode_t mode = 0;
+ 
+-	if (flags & O_CREAT) {
++	if ((flags & O_CREAT) || (flags & O_TMPFILE) == O_TMPFILE) {
+ 		va_list ap;
+ 		va_start(ap, flags);
+ 		mode = va_arg(ap, mode_t);
+-- 
+2.2.0
+
diff --git a/main/musl/0003-fix-invalid-access-by-openat-to-possibly-missing-var.patch b/main/musl/0003-fix-invalid-access-by-openat-to-possibly-missing-var.patch
new file mode 100644
index 0000000000..c6f0340a37
--- /dev/null
+++ b/main/musl/0003-fix-invalid-access-by-openat-to-possibly-missing-var.patch
@@ -0,0 +1,38 @@
+From 2da3ab1382ca8e39eb1e4428103764a81fba73d3 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Thu, 30 Oct 2014 20:08:40 -0400
+Subject: [PATCH] fix invalid access by openat to possibly-missing variadic
+ mode argument
+
+the mode argument is only required to be present when the O_CREAT or
+O_TMPFILE flag is used.
+---
+ src/fcntl/openat.c | 12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+diff --git a/src/fcntl/openat.c b/src/fcntl/openat.c
+index 634c4bf..4faeb29 100644
+--- a/src/fcntl/openat.c
++++ b/src/fcntl/openat.c
+@@ -6,10 +6,14 @@
+ int openat(int fd, const char *filename, int flags, ...)
+ {
+ 	mode_t mode;
+-	va_list ap;
+-	va_start(ap, flags);
+-	mode = va_arg(ap, mode_t);
+-	va_end(ap);
++
++	if ((flags & O_CREAT) || (flags & O_TMPFILE) == O_TMPFILE) {
++		va_list ap;
++		va_start(ap, flags);
++		mode = va_arg(ap, mode_t);
++		va_end(ap);
++	}
++
+ 	return syscall_cp(SYS_openat, fd, filename, flags|O_LARGEFILE, mode);
+ }
+ 
+-- 
+2.2.0
+
diff --git a/main/musl/0004-fix-uninitialized-mode-variable-in-openat-function.patch b/main/musl/0004-fix-uninitialized-mode-variable-in-openat-function.patch
new file mode 100644
index 0000000000..9385bc7c56
--- /dev/null
+++ b/main/musl/0004-fix-uninitialized-mode-variable-in-openat-function.patch
@@ -0,0 +1,27 @@
+From e146e6035fecea080fb17450db3c8bb44d36e07d Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Fri, 31 Oct 2014 15:35:24 -0400
+Subject: [PATCH] fix uninitialized mode variable in openat function
+
+this was introduced in commit 2da3ab1382ca8e39eb1e4428103764a81fba73d3
+as an oversight while making the variadic argument access conditional.
+---
+ src/fcntl/openat.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/fcntl/openat.c b/src/fcntl/openat.c
+index 4faeb29..e741336 100644
+--- a/src/fcntl/openat.c
++++ b/src/fcntl/openat.c
+@@ -5,7 +5,7 @@
+ 
+ int openat(int fd, const char *filename, int flags, ...)
+ {
+-	mode_t mode;
++	mode_t mode = 0;
+ 
+ 	if ((flags & O_CREAT) || (flags & O_TMPFILE) == O_TMPFILE) {
+ 		va_list ap;
+-- 
+2.2.0
+
diff --git a/main/musl/0005-math-fix-x86_64-and-x32-asm-not-to-use-sahf-instruct.patch b/main/musl/0005-math-fix-x86_64-and-x32-asm-not-to-use-sahf-instruct.patch
new file mode 100644
index 0000000000..807536be46
--- /dev/null
+++ b/main/musl/0005-math-fix-x86_64-and-x32-asm-not-to-use-sahf-instruct.patch
@@ -0,0 +1,159 @@
+From a732e80d33b4fd6f510f7cec4f5573ef5d89bc4e Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Wed, 5 Nov 2014 21:40:29 +0100
+Subject: [PATCH] math: fix x86_64 and x32 asm not to use sahf instruction
+
+Some early x86_64 cpus (released before 2006) did not support sahf/lahf
+instructions so they should be avoided (intel manual says they are only
+supported if CPUID.80000001H:ECX.LAHF-SAHF[bit 0] = 1).
+
+The workaround simplifies exp2l and expm1l because fucomip can be
+used instead of the fucomp;fnstsw;sahf sequence copied from i386.
+
+In fmodl and remainderl sahf is replaced by a simple bit test.
+---
+ src/math/x32/exp2l.s         | 13 +++----------
+ src/math/x32/fmodl.s         |  4 ++--
+ src/math/x32/remainderl.s    |  4 ++--
+ src/math/x86_64/exp2l.s      | 13 +++----------
+ src/math/x86_64/fmodl.s      |  4 ++--
+ src/math/x86_64/remainderl.s |  4 ++--
+ 6 files changed, 14 insertions(+), 28 deletions(-)
+
+diff --git a/src/math/x32/exp2l.s b/src/math/x32/exp2l.s
+index d9f4d6e..dfb2bc7 100644
+--- a/src/math/x32/exp2l.s
++++ b/src/math/x32/exp2l.s
+@@ -6,9 +6,7 @@ expm1l:
+ 	fmulp
+ 	movl $0xc2820000,-4(%esp)
+ 	flds -4(%esp)
+-	fucomp %st(1)
+-	fnstsw %ax
+-	sahf
++	fucomip %st(1)
+ 	fld1
+ 	jb 1f
+ 		# x*log2e <= -65, return -1 without underflow
+@@ -17,11 +15,8 @@ expm1l:
+ 	ret
+ 1:	fld %st(1)
+ 	fabs
+-	fucom %st(1)
+-	fnstsw %ax
++	fucomip %st(1)
+ 	fstp %st(0)
+-	fstp %st(0)
+-	sahf
+ 	ja 1f
+ 	f2xm1
+ 	ret
+@@ -53,9 +48,7 @@ exp2l:
+ 	fld %st(1)
+ 	fsub %st(1)
+ 	faddp
+-	fucomp %st(1)
+-	fnstsw
+-	sahf
++	fucomip %st(1)
+ 	je 2f             # x - 0x1p63 + 0x1p63 == x
+ 	movl $1,(%esp)
+ 	flds (%esp)       # 0x1p-149
+diff --git a/src/math/x32/fmodl.s b/src/math/x32/fmodl.s
+index 9e4378a..b951320 100644
+--- a/src/math/x32/fmodl.s
++++ b/src/math/x32/fmodl.s
+@@ -5,7 +5,7 @@ fmodl:
+ 	fldt 8(%esp)
+ 1:	fprem
+ 	fstsw %ax
+-	sahf
+-	jp 1b
++	testb $4,%ah
++	jnz 1b
+ 	fstp %st(1)
+ 	ret
+diff --git a/src/math/x32/remainderl.s b/src/math/x32/remainderl.s
+index c97f68a..79bf4fe 100644
+--- a/src/math/x32/remainderl.s
++++ b/src/math/x32/remainderl.s
+@@ -5,7 +5,7 @@ remainderl:
+ 	fldt 8(%esp)
+ 1:	fprem1
+ 	fstsw %ax
+-	sahf
+-	jp 1b
++	testb $4,%ah
++	jnz 1b
+ 	fstp %st(1)
+ 	ret
+diff --git a/src/math/x86_64/exp2l.s b/src/math/x86_64/exp2l.s
+index 0d6cd56..0e9bdf9 100644
+--- a/src/math/x86_64/exp2l.s
++++ b/src/math/x86_64/exp2l.s
+@@ -6,9 +6,7 @@ expm1l:
+ 	fmulp
+ 	movl $0xc2820000,-4(%rsp)
+ 	flds -4(%rsp)
+-	fucomp %st(1)
+-	fnstsw %ax
+-	sahf
++	fucomip %st(1)
+ 	fld1
+ 	jb 1f
+ 		# x*log2e <= -65, return -1 without underflow
+@@ -17,11 +15,8 @@ expm1l:
+ 	ret
+ 1:	fld %st(1)
+ 	fabs
+-	fucom %st(1)
+-	fnstsw %ax
++	fucomip %st(1)
+ 	fstp %st(0)
+-	fstp %st(0)
+-	sahf
+ 	ja 1f
+ 	f2xm1
+ 	ret
+@@ -53,9 +48,7 @@ exp2l:
+ 	fld %st(1)
+ 	fsub %st(1)
+ 	faddp
+-	fucomp %st(1)
+-	fnstsw
+-	sahf
++	fucomip %st(1)
+ 	je 2f             # x - 0x1p63 + 0x1p63 == x
+ 	movl $1,(%rsp)
+ 	flds (%rsp)       # 0x1p-149
+diff --git a/src/math/x86_64/fmodl.s b/src/math/x86_64/fmodl.s
+index ca81e60..cd8d2b7 100644
+--- a/src/math/x86_64/fmodl.s
++++ b/src/math/x86_64/fmodl.s
+@@ -5,7 +5,7 @@ fmodl:
+ 	fldt 8(%rsp)
+ 1:	fprem
+ 	fstsw %ax
+-	sahf
+-	jp 1b
++	testb $4,%ah
++	jnz 1b
+ 	fstp %st(1)
+ 	ret
+diff --git a/src/math/x86_64/remainderl.s b/src/math/x86_64/remainderl.s
+index 75c1237..2c337cf 100644
+--- a/src/math/x86_64/remainderl.s
++++ b/src/math/x86_64/remainderl.s
+@@ -5,7 +5,7 @@ remainderl:
+ 	fldt 8(%rsp)
+ 1:	fprem1
+ 	fstsw %ax
+-	sahf
+-	jp 1b
++	testb $4,%ah
++	jnz 1b
+ 	fstp %st(1)
+ 	ret
+-- 
+2.2.0
+
diff --git a/main/musl/0006-math-use-fnstsw-consistently-instead-of-fstsw-in-x87.patch b/main/musl/0006-math-use-fnstsw-consistently-instead-of-fstsw-in-x87.patch
new file mode 100644
index 0000000000..2bd9dcd556
--- /dev/null
+++ b/main/musl/0006-math-use-fnstsw-consistently-instead-of-fstsw-in-x87.patch
@@ -0,0 +1,168 @@
+From ec4318943a26d4bd4050481d11709853184f2794 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Wed, 5 Nov 2014 22:13:58 +0100
+Subject: [PATCH] math: use fnstsw consistently instead of fstsw in x87 asm
+
+fnstsw does not wait for pending unmasked x87 floating-point exceptions
+and it is the same as fstsw when all exceptions are masked which is the
+only environment libc supports.
+---
+ src/math/i386/fmod.s         | 2 +-
+ src/math/i386/fmodf.s        | 2 +-
+ src/math/i386/fmodl.s        | 2 +-
+ src/math/i386/remainder.s    | 2 +-
+ src/math/i386/remainderf.s   | 2 +-
+ src/math/i386/remainderl.s   | 2 +-
+ src/math/i386/sqrt.s         | 2 +-
+ src/math/x32/fmodl.s         | 2 +-
+ src/math/x32/remainderl.s    | 2 +-
+ src/math/x86_64/fmodl.s      | 2 +-
+ src/math/x86_64/remainderl.s | 2 +-
+ 11 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/src/math/i386/fmod.s b/src/math/i386/fmod.s
+index 069fbfe..2113b3c 100644
+--- a/src/math/i386/fmod.s
++++ b/src/math/i386/fmod.s
+@@ -4,7 +4,7 @@ fmod:
+ 	fldl 12(%esp)
+ 	fldl 4(%esp)
+ 1:	fprem
+-	fstsw %ax
++	fnstsw %ax
+ 	sahf
+ 	jp 1b
+ 	fstp %st(1)
+diff --git a/src/math/i386/fmodf.s b/src/math/i386/fmodf.s
+index d99c80f..e04e2a5 100644
+--- a/src/math/i386/fmodf.s
++++ b/src/math/i386/fmodf.s
+@@ -4,7 +4,7 @@ fmodf:
+ 	flds 8(%esp)
+ 	flds 4(%esp)
+ 1:	fprem
+-	fstsw %ax
++	fnstsw %ax
+ 	sahf
+ 	jp 1b
+ 	fstp %st(1)
+diff --git a/src/math/i386/fmodl.s b/src/math/i386/fmodl.s
+index 7e07e7b..0cb3fe9 100644
+--- a/src/math/i386/fmodl.s
++++ b/src/math/i386/fmodl.s
+@@ -4,7 +4,7 @@ fmodl:
+ 	fldt 16(%esp)
+ 	fldt 4(%esp)
+ 1:	fprem
+-	fstsw %ax
++	fnstsw %ax
+ 	sahf
+ 	jp 1b
+ 	fstp %st(1)
+diff --git a/src/math/i386/remainder.s b/src/math/i386/remainder.s
+index 7f4be05..ab1da95 100644
+--- a/src/math/i386/remainder.s
++++ b/src/math/i386/remainder.s
+@@ -7,7 +7,7 @@ drem:
+ 	fldl 12(%esp)
+ 	fldl 4(%esp)
+ 1:	fprem1
+-	fstsw %ax
++	fnstsw %ax
+ 	sahf
+ 	jp 1b
+ 	fstp %st(1)
+diff --git a/src/math/i386/remainderf.s b/src/math/i386/remainderf.s
+index ac6e367..6a7378a 100644
+--- a/src/math/i386/remainderf.s
++++ b/src/math/i386/remainderf.s
+@@ -7,7 +7,7 @@ dremf:
+ 	flds 8(%esp)
+ 	flds 4(%esp)
+ 1:	fprem1
+-	fstsw %ax
++	fnstsw %ax
+ 	sahf
+ 	jp 1b
+ 	fstp %st(1)
+diff --git a/src/math/i386/remainderl.s b/src/math/i386/remainderl.s
+index 0097872..b41518e 100644
+--- a/src/math/i386/remainderl.s
++++ b/src/math/i386/remainderl.s
+@@ -4,7 +4,7 @@ remainderl:
+ 	fldt 16(%esp)
+ 	fldt 4(%esp)
+ 1:	fprem1
+-	fstsw %ax
++	fnstsw %ax
+ 	sahf
+ 	jp 1b
+ 	fstp %st(1)
+diff --git a/src/math/i386/sqrt.s b/src/math/i386/sqrt.s
+index 8289d09..57837e2 100644
+--- a/src/math/i386/sqrt.s
++++ b/src/math/i386/sqrt.s
+@@ -2,7 +2,7 @@
+ .type sqrt,@function
+ sqrt:	fldl 4(%esp)
+ 	fsqrt
+-	fstsw %ax
++	fnstsw %ax
+ 	sub $12,%esp
+ 	fld %st(0)
+ 	fstpt (%esp)
+diff --git a/src/math/x32/fmodl.s b/src/math/x32/fmodl.s
+index b951320..c3f790c 100644
+--- a/src/math/x32/fmodl.s
++++ b/src/math/x32/fmodl.s
+@@ -4,7 +4,7 @@ fmodl:
+ 	fldt 24(%esp)
+ 	fldt 8(%esp)
+ 1:	fprem
+-	fstsw %ax
++	fnstsw %ax
+ 	testb $4,%ah
+ 	jnz 1b
+ 	fstp %st(1)
+diff --git a/src/math/x32/remainderl.s b/src/math/x32/remainderl.s
+index 79bf4fe..376ba0e 100644
+--- a/src/math/x32/remainderl.s
++++ b/src/math/x32/remainderl.s
+@@ -4,7 +4,7 @@ remainderl:
+ 	fldt 24(%esp)
+ 	fldt 8(%esp)
+ 1:	fprem1
+-	fstsw %ax
++	fnstsw %ax
+ 	testb $4,%ah
+ 	jnz 1b
+ 	fstp %st(1)
+diff --git a/src/math/x86_64/fmodl.s b/src/math/x86_64/fmodl.s
+index cd8d2b7..ea07b40 100644
+--- a/src/math/x86_64/fmodl.s
++++ b/src/math/x86_64/fmodl.s
+@@ -4,7 +4,7 @@ fmodl:
+ 	fldt 24(%rsp)
+ 	fldt 8(%rsp)
+ 1:	fprem
+-	fstsw %ax
++	fnstsw %ax
+ 	testb $4,%ah
+ 	jnz 1b
+ 	fstp %st(1)
+diff --git a/src/math/x86_64/remainderl.s b/src/math/x86_64/remainderl.s
+index 2c337cf..cb3857b 100644
+--- a/src/math/x86_64/remainderl.s
++++ b/src/math/x86_64/remainderl.s
+@@ -4,7 +4,7 @@ remainderl:
+ 	fldt 24(%rsp)
+ 	fldt 8(%rsp)
+ 1:	fprem1
+-	fstsw %ax
++	fnstsw %ax
+ 	testb $4,%ah
+ 	jnz 1b
+ 	fstp %st(1)
+-- 
+2.2.0
+
diff --git a/main/musl/0007-fix-behavior-of-printf-with-alt-form-octal-zero-prec.patch b/main/musl/0007-fix-behavior-of-printf-with-alt-form-octal-zero-prec.patch
new file mode 100644
index 0000000000..c58122cfa5
--- /dev/null
+++ b/main/musl/0007-fix-behavior-of-printf-with-alt-form-octal-zero-prec.patch
@@ -0,0 +1,35 @@
+From b91cdbe2bc8b626aa04dc6e3e84345accf34e4b1 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Sat, 15 Nov 2014 12:16:19 -0500
+Subject: [PATCH] fix behavior of printf with alt-form octal, zero precision,
+ zero value
+
+in this case there are two conflicting rules in play: that an explicit
+precision of zero with the value zero produces no output, and that the
+'#' modifier for octal increases the precision sufficiently to yield a
+leading zero. ISO C (7.19.6.1 paragraph 6 in C99+TC3) includes a
+parenthetical remark to clarify that the precision-increasing behavior
+takes precedence, but the corresponding text in POSIX off of which I
+based the implementation is missing this remark.
+
+this issue was covered in WG14 DR#151.
+---
+ src/stdio/vfprintf.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
+index ea25772..39c1e86 100644
+--- a/src/stdio/vfprintf.c
++++ b/src/stdio/vfprintf.c
+@@ -570,7 +570,7 @@ static int printf_core(FILE *f, const char *fmt, va_list *ap, union arg *nl_arg,
+ 			if (0) {
+ 		case 'o':
+ 			a = fmt_o(arg.i, z);
+-			if ((fl&ALT_FORM) && arg.i) prefix+=5, pl=1;
++			if ((fl&ALT_FORM) && p<z-a+1) p=z-a+1;
+ 			} if (0) {
+ 		case 'd': case 'i':
+ 			pl=1;
+-- 
+2.2.0
+
diff --git a/main/musl/0008-implement-a-private-state-for-the-uchar.h-functions.patch b/main/musl/0008-implement-a-private-state-for-the-uchar.h-functions.patch
new file mode 100644
index 0000000000..5dfdae2044
--- /dev/null
+++ b/main/musl/0008-implement-a-private-state-for-the-uchar.h-functions.patch
@@ -0,0 +1,72 @@
+From 941644e98c3d05761b4639a8ae5afacd8586d1b9 Mon Sep 17 00:00:00 2001
+From: Jens Gustedt <Jens.Gustedt@inria.fr>
+Date: Sun, 9 Nov 2014 11:18:08 +0100
+Subject: [PATCH] implement a private state for the uchar.h functions
+
+The C standard is imperative on that:
+
+  7.28.1 ... If ps is a null pointer, each function uses its own internal
+  mbstate_t object instead, which is initialized at program startup to
+  the initial conversion state;
+
+and these functions are also not supposed to implicitly use the state of
+the wchar.h functions:
+
+  7.29.6.3 ... The implementation behaves as if no library function calls
+  these functions with a null pointer for ps.
+
+Previously this resulted in two bugs.
+
+ - The functions c16rtomb and mbrtoc16 would crash when called with ps
+   set to null.
+
+ - The function mbrtoc32 used the private state of mbrtowc, which it
+   is not allowed to do.
+---
+ src/multibyte/c16rtomb.c | 2 ++
+ src/multibyte/mbrtoc16.c | 2 ++
+ src/multibyte/mbrtoc32.c | 2 ++
+ 3 files changed, 6 insertions(+)
+
+diff --git a/src/multibyte/c16rtomb.c b/src/multibyte/c16rtomb.c
+index 2e8ec97..39ca375 100644
+--- a/src/multibyte/c16rtomb.c
++++ b/src/multibyte/c16rtomb.c
+@@ -4,6 +4,8 @@
+ 
+ size_t c16rtomb(char *restrict s, char16_t c16, mbstate_t *restrict ps)
+ {
++	static unsigned internal_state;
++	if (!ps) ps = (void *)&internal_state;
+ 	unsigned *x = (unsigned *)ps;
+ 	wchar_t wc;
+ 
+diff --git a/src/multibyte/mbrtoc16.c b/src/multibyte/mbrtoc16.c
+index 74b7d77..765ff90 100644
+--- a/src/multibyte/mbrtoc16.c
++++ b/src/multibyte/mbrtoc16.c
+@@ -3,6 +3,8 @@
+ 
+ size_t mbrtoc16(char16_t *restrict pc16, const char *restrict s, size_t n, mbstate_t *restrict ps)
+ {
++	static unsigned internal_state;
++	if (!ps) ps = (void *)&internal_state;
+ 	unsigned *pending = (unsigned *)ps;
+ 
+ 	if (!s) return mbrtoc16(0, "", 1, ps);
+diff --git a/src/multibyte/mbrtoc32.c b/src/multibyte/mbrtoc32.c
+index c6d2082..9b6b236 100644
+--- a/src/multibyte/mbrtoc32.c
++++ b/src/multibyte/mbrtoc32.c
+@@ -3,6 +3,8 @@
+ 
+ size_t mbrtoc32(char32_t *restrict pc32, const char *restrict s, size_t n, mbstate_t *restrict ps)
+ {
++	static unsigned internal_state;
++	if (!ps) ps = (void *)&internal_state;
+ 	if (!s) return mbrtoc32(0, "", 1, ps);
+ 	wchar_t wc;
+ 	size_t ret = mbrtowc(&wc, s, n, ps);
+-- 
+2.2.0
+
diff --git a/main/musl/0009-getopt-fix-optional-argument-processing.patch b/main/musl/0009-getopt-fix-optional-argument-processing.patch
new file mode 100644
index 0000000000..e486d0c5d0
--- /dev/null
+++ b/main/musl/0009-getopt-fix-optional-argument-processing.patch
@@ -0,0 +1,38 @@
+From acccc93e084641861ca553317edb7da7791833b5 Mon Sep 17 00:00:00 2001
+From: Felix Fietkau <nbd@openwrt.org>
+Date: Tue, 21 Oct 2014 22:24:50 +0200
+Subject: [PATCH] getopt: fix optional argument processing
+
+Processing an option character with optional argument fails if the
+option is last on the command line. This happens because the
+if (optind >= argc) check runs first before testing for optional
+argument.
+---
+ src/misc/getopt.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/misc/getopt.c b/src/misc/getopt.c
+index 8a2e4d5..f94c4f7 100644
+--- a/src/misc/getopt.c
++++ b/src/misc/getopt.c
+@@ -55,7 +55,8 @@ int getopt(int argc, char * const argv[], const char *optstring)
+ 		return '?';
+ 	}
+ 	if (optstring[i+1] == ':') {
+-		if (optind >= argc) {
++		if (optstring[i+2] == ':') optarg = 0;
++		else if (optind >= argc) {
+ 			if (optstring[0] == ':') return ':';
+ 			if (opterr) {
+ 				write(2, argv[0], strlen(argv[0]));
+@@ -65,7 +66,6 @@ int getopt(int argc, char * const argv[], const char *optstring)
+ 			}
+ 			return '?';
+ 		}
+-		if (optstring[i+2] == ':') optarg = 0;
+ 		if (optstring[i+2] != ':' || optpos) {
+ 			optarg = argv[optind++] + optpos;
+ 			optpos = 0;
+-- 
+2.2.0
+
diff --git a/main/musl/0010-adapt-dynamic-linker-for-new-binutils-versions-that-.patch b/main/musl/0010-adapt-dynamic-linker-for-new-binutils-versions-that-.patch
new file mode 100644
index 0000000000..07a7083bf0
--- /dev/null
+++ b/main/musl/0010-adapt-dynamic-linker-for-new-binutils-versions-that-.patch
@@ -0,0 +1,31 @@
+From d8dc2b7c0289b12eeef4feff65e3c918111b0f55 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Sun, 23 Nov 2014 16:17:57 -0500
+Subject: [PATCH] adapt dynamic linker for new binutils versions that omit
+ DT_RPATH
+
+the new DT_RUNPATH semantics for search order are always used, and
+since binutils had always set both DT_RPATH and DT_RUNPATH when the
+latter was used, processing only DT_RPATH worked fine. however, recent
+binutils has stopped generating DT_RPATH when DT_RUNPATH is used,
+which broke support for this feature completely.
+---
+ src/ldso/dynlink.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
+index 1de430c..00af886 100644
+--- a/src/ldso/dynlink.c
++++ b/src/ldso/dynlink.c
+@@ -645,6 +645,8 @@ static void decode_dyn(struct dso *p)
+ 		p->hashtab = (void *)(p->base + dyn[DT_HASH]);
+ 	if (dyn[0]&(1<<DT_RPATH))
+ 		p->rpath_orig = (void *)(p->strings + dyn[DT_RPATH]);
++	if (dyn[0]&(1<<DT_RUNPATH))
++		p->rpath_orig = (void *)(p->strings + dyn[DT_RUNPATH]);
+ 	if (search_vec(p->dynv, dyn, DT_GNU_HASH))
+ 		p->ghashtab = (void *)(p->base + *dyn);
+ 	if (search_vec(p->dynv, dyn, DT_VERSYM))
+-- 
+2.2.0
+
diff --git a/main/musl/0011-add-support-for-non-option-arguments-extension-to-ge.patch b/main/musl/0011-add-support-for-non-option-arguments-extension-to-ge.patch
new file mode 100644
index 0000000000..7bf8e75e85
--- /dev/null
+++ b/main/musl/0011-add-support-for-non-option-arguments-extension-to-ge.patch
@@ -0,0 +1,71 @@
+From b72cd07f176b876aa51864d93aa8101477b1d732 Mon Sep 17 00:00:00 2001
+From: Gianluca Anzolin <gianluca@sottospazio.it>
+Date: Tue, 25 Nov 2014 08:56:03 +0100
+Subject: [PATCH] add support for non-option arguments extension to getopt
+
+this is a GNU extension, activated by including '-' as the first
+character of the options string, whereby non-option arguments are
+processed as if they were arguments to an option character '\1' rather
+than ending option processing.
+---
+ src/misc/getopt.c      | 17 ++++++++++++++++-
+ src/misc/getopt_long.c |  7 ++++---
+ 2 files changed, 20 insertions(+), 4 deletions(-)
+
+diff --git a/src/misc/getopt.c b/src/misc/getopt.c
+index f94c4f7..a698c8d 100644
+--- a/src/misc/getopt.c
++++ b/src/misc/getopt.c
+@@ -24,8 +24,20 @@ int getopt(int argc, char * const argv[], const char *optstring)
+ 		optind = 1;
+ 	}
+ 
+-	if (optind >= argc || !argv[optind] || argv[optind][0] != '-' || !argv[optind][1])
++	if (optind >= argc || !argv[optind])
+ 		return -1;
++
++	if (argv[optind][0] != '-') {
++		if (optstring[0] == '-') {
++			optarg = argv[optind++];
++			return 1;
++		}
++		return -1;
++	}
++
++	if (!argv[optind][1])
++		return -1;
++
+ 	if (argv[optind][1] == '-' && !argv[optind][2])
+ 		return optind++, -1;
+ 
+@@ -43,6 +55,9 @@ int getopt(int argc, char * const argv[], const char *optstring)
+ 		optpos = 0;
+ 	}
+ 
++	if (optstring[0] == '-')
++		optstring++;
++
+ 	for (i=0; (l = mbtowc(&d, optstring+i, MB_LEN_MAX)) && d!=c; i+=l>0?l:1);
+ 
+ 	if (d != c) {
+diff --git a/src/misc/getopt_long.c b/src/misc/getopt_long.c
+index 4ef5a5c..3d318ce 100644
+--- a/src/misc/getopt_long.c
++++ b/src/misc/getopt_long.c
+@@ -12,9 +12,10 @@ static int __getopt_long(int argc, char *const *argv, const char *optstring, con
+ 		__optpos = 0;
+ 		optind = 1;
+ 	}
+-	if (optind >= argc || !argv[optind] || argv[optind][0] != '-') return -1;
+-	if ((longonly && argv[optind][1]) ||
+-		(argv[optind][1] == '-' && argv[optind][2]))
++	if (optind >= argc || !argv[optind]) return -1;
++	if (argv[optind][0] == '-' &&
++		((longonly && argv[optind][1]) ||
++		 (argv[optind][1] == '-' && argv[optind][2])))
+ 	{
+ 		int i;
+ 		for (i=0; longopts[i].name; i++) {
+-- 
+2.2.0
+
diff --git a/main/musl/0012-fix-uninitialized-output-from-sched_getaffinity.patch b/main/musl/0012-fix-uninitialized-output-from-sched_getaffinity.patch
new file mode 100644
index 0000000000..8e99597be3
--- /dev/null
+++ b/main/musl/0012-fix-uninitialized-output-from-sched_getaffinity.patch
@@ -0,0 +1,39 @@
+From a56e339419c1a90f8a85f86621f3c73945e07b23 Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Tue, 2 Dec 2014 21:54:36 -0500
+Subject: [PATCH] fix uninitialized output from sched_getaffinity
+
+the sched_getaffinity syscall only fills a cpu set up to the set size
+used/supported by the kernel. the rest is left untouched and userspace
+is responsible for zero-filling it based on the return value of the
+syscall.
+---
+ src/sched/affinity.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/src/sched/affinity.c b/src/sched/affinity.c
+index 3b40211..737e41b 100644
+--- a/src/sched/affinity.c
++++ b/src/sched/affinity.c
+@@ -1,5 +1,6 @@
+ #define _GNU_SOURCE
+ #include <sched.h>
++#include <string.h>
+ #include "pthread_impl.h"
+ #include "syscall.h"
+ 
+@@ -16,7 +17,10 @@ int pthread_setaffinity_np(pthread_t td, size_t size, const cpu_set_t *set)
+ int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
+ {
+ 	long ret = __syscall(SYS_sched_getaffinity, tid, size, set);
+-	if (ret > 0) ret = 0;
++	if (ret > 0) {
++		if (ret < size) memset((char *)set+ret, 0, size-ret);
++		ret = 0;
++	}
+ 	return __syscall_ret(ret);
+ }
+ 
+-- 
+2.2.0
+
diff --git a/main/musl/0013-fix-return-value-of-pthread_getaffinity_np-and-pthre.patch b/main/musl/0013-fix-return-value-of-pthread_getaffinity_np-and-pthre.patch
new file mode 100644
index 0000000000..a38ab2f496
--- /dev/null
+++ b/main/musl/0013-fix-return-value-of-pthread_getaffinity_np-and-pthre.patch
@@ -0,0 +1,51 @@
+From 66140b0c926ed097f2cb7474863523e4af351f5b Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Tue, 2 Dec 2014 22:17:52 -0500
+Subject: [PATCH] fix return value of pthread_getaffinity_np and
+ pthread_setaffinity_np
+
+these functions are expected to return an error code rather than
+setting errno and returning -1.
+---
+ src/sched/affinity.c | 19 +++++++++++--------
+ 1 file changed, 11 insertions(+), 8 deletions(-)
+
+diff --git a/src/sched/affinity.c b/src/sched/affinity.c
+index 737e41b..948ece4 100644
+--- a/src/sched/affinity.c
++++ b/src/sched/affinity.c
+@@ -11,20 +11,23 @@ int sched_setaffinity(pid_t tid, size_t size, const cpu_set_t *set)
+ 
+ int pthread_setaffinity_np(pthread_t td, size_t size, const cpu_set_t *set)
+ {
+-	return syscall(SYS_sched_setaffinity, td->tid, size, set);
++	return -__syscall(SYS_sched_setaffinity, td->tid, size, set);
+ }
+ 
+-int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
++static int do_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
+ {
+ 	long ret = __syscall(SYS_sched_getaffinity, tid, size, set);
+-	if (ret > 0) {
+-		if (ret < size) memset((char *)set+ret, 0, size-ret);
+-		ret = 0;
+-	}
+-	return __syscall_ret(ret);
++	if (ret < 0) return ret;
++	if (ret < size) memset((char *)set+ret, 0, size-ret);
++	return 0;
++}
++
++int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
++{
++	return __syscall_ret(do_getaffinity(tid, size, set));
+ }
+ 
+ int pthread_getaffinity_np(pthread_t td, size_t size, cpu_set_t *set)
+ {
+-	return sched_getaffinity(td->tid, size, set);
++	return -do_getaffinity(td->tid, size, set);
+ }
+-- 
+2.2.0
+
diff --git a/main/musl/0014-add-arm-private-syscall-numbers.patch b/main/musl/0014-add-arm-private-syscall-numbers.patch
new file mode 100644
index 0000000000..408b65d792
--- /dev/null
+++ b/main/musl/0014-add-arm-private-syscall-numbers.patch
@@ -0,0 +1,29 @@
+From be1f67ab6fde1989af7b2e2946804e9009931a8a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
+Date: Wed, 3 Dec 2014 16:09:37 +0200
+Subject: [PATCH] add arm private syscall numbers
+
+it is part of kernel uapi, and some programs (e.g. nodejs) do use them
+---
+ arch/arm/bits/syscall.h | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/arch/arm/bits/syscall.h b/arch/arm/bits/syscall.h
+index d1b1c99..df23b83 100644
+--- a/arch/arm/bits/syscall.h
++++ b/arch/arm/bits/syscall.h
+@@ -340,6 +340,11 @@
+ #define __NR_getrandom	384
+ #define __NR_memfd_create	385
+ 
++#define __ARM_NR_breakpoint	0x0f0001
++#define __ARM_NR_cacheflush	0x0f0002
++#define __ARM_NR_usr26		0x0f0003
++#define __ARM_NR_usr32		0x0f0004
++#define __ARM_NR_set_tls	0x0f0005
+ 
+ /* Repeated with SYS_ prefix */
+ 
+-- 
+2.2.0
+
diff --git a/main/musl/APKBUILD b/main/musl/APKBUILD
index d8f8c9fda8..0c77871f9e 100644
--- a/main/musl/APKBUILD
+++ b/main/musl/APKBUILD
@@ -2,7 +2,7 @@
 # Maintainer: Timo Teräs <timo.teras@iki.fi>
 pkgname=musl
 pkgver=1.1.5
-pkgrel=0
+pkgrel=1
 pkgdesc="the musl c library (libc) implementation"
 url="http://www.musl-libc.org/"
 arch="all"
@@ -13,6 +13,20 @@ makedepends="$depends_dev"
 install="$pkgname.post-upgrade"
 subpackages="$pkgname-dev $pkgname-utils $pkgname-dbg"
 source="http://www.musl-libc.org/releases/musl-$pkgver.tar.gz
+	0001-manually-shrink-wrap-fast-path-in-pthread_once.patch
+	0002-fix-failure-of-open-to-read-variadic-mode-argument-f.patch
+	0003-fix-invalid-access-by-openat-to-possibly-missing-var.patch
+	0004-fix-uninitialized-mode-variable-in-openat-function.patch
+	0005-math-fix-x86_64-and-x32-asm-not-to-use-sahf-instruct.patch
+	0006-math-use-fnstsw-consistently-instead-of-fstsw-in-x87.patch
+	0007-fix-behavior-of-printf-with-alt-form-octal-zero-prec.patch
+	0008-implement-a-private-state-for-the-uchar.h-functions.patch
+	0009-getopt-fix-optional-argument-processing.patch
+	0010-adapt-dynamic-linker-for-new-binutils-versions-that-.patch
+	0011-add-support-for-non-option-arguments-extension-to-ge.patch
+	0012-fix-uninitialized-output-from-sched_getaffinity.patch
+	0013-fix-return-value-of-pthread_getaffinity_np-and-pthre.patch
+	0014-add-arm-private-syscall-numbers.patch
 	1001-add-basic-dns-record-parsing-functions.patch
 	1003-remove-ulimit-fiddling-from-setxid.patch
 
@@ -118,6 +132,20 @@ utils() {
 }
 
 md5sums="94f8aa9dab80229fed68991bb9984cc5  musl-1.1.5.tar.gz
+facc7c96b21a72bc3ef3917f4add88ca  0001-manually-shrink-wrap-fast-path-in-pthread_once.patch
+4ef3fa8b6fdc78515b83b7680b55a55f  0002-fix-failure-of-open-to-read-variadic-mode-argument-f.patch
+70f9b257bcc76d6d9fa1e4d55327c220  0003-fix-invalid-access-by-openat-to-possibly-missing-var.patch
+7d1b8c611caafaf3b6c77359c7bf521e  0004-fix-uninitialized-mode-variable-in-openat-function.patch
+bdd96730e9f4ce664502bc31336f4941  0005-math-fix-x86_64-and-x32-asm-not-to-use-sahf-instruct.patch
+feba13393b07c4ce0a87cba7e3de49e1  0006-math-use-fnstsw-consistently-instead-of-fstsw-in-x87.patch
+859ca10150b56fb1ec046c75554c8aed  0007-fix-behavior-of-printf-with-alt-form-octal-zero-prec.patch
+d7cc03dbd77755b25c7108aada242980  0008-implement-a-private-state-for-the-uchar.h-functions.patch
+5ff1064dd67d75814b08270d1448042e  0009-getopt-fix-optional-argument-processing.patch
+518c3b3a9819bf7ce1743a3fe58b970e  0010-adapt-dynamic-linker-for-new-binutils-versions-that-.patch
+3896f988be70fad4ff9a774580b23e6c  0011-add-support-for-non-option-arguments-extension-to-ge.patch
+d9b4d921348fa86e57c44bf4c95714bd  0012-fix-uninitialized-output-from-sched_getaffinity.patch
+4ac6a08107b65927400f59f8f5e07f15  0013-fix-return-value-of-pthread_getaffinity_np-and-pthre.patch
+5d8dde8258654d404d0b7a06c5046829  0014-add-arm-private-syscall-numbers.patch
 2371eb1ce057fcb709a0e6a81f0d356c  1001-add-basic-dns-record-parsing-functions.patch
 71b2a4dcc39c436a6b89173943424043  1003-remove-ulimit-fiddling-from-setxid.patch
 830d01f7821b978df770b06db3790921  ldconfig
@@ -127,6 +155,20 @@ md5sums="94f8aa9dab80229fed68991bb9984cc5  musl-1.1.5.tar.gz
 2b941c4251cac44988a4abfc50e21267  getent.c
 45f92f8d59cf84d765de698a9578dbf4  iconv.c"
 sha256sums="352362b1724cc9740f4c3ce0fe02aae45e4de9809ea4ac961f31aedc11b87393  musl-1.1.5.tar.gz
+dec352852801f8a5c7e6957014f761efce21e4b6c3223cf8ee6f7cac24c12c01  0001-manually-shrink-wrap-fast-path-in-pthread_once.patch
+83168c779dbc575ab240aa360c320bdca8de41cbbd0ad8b9a26fbd74466ca58d  0002-fix-failure-of-open-to-read-variadic-mode-argument-f.patch
+c04a1272b934d968a1fbec30269d02171ae5d6b7d4f3cd5d49cbd905c975341c  0003-fix-invalid-access-by-openat-to-possibly-missing-var.patch
+7d16772140a3f0811c0cf6822eb713e7a77b8974b609f9c7634ae42c3ca25a95  0004-fix-uninitialized-mode-variable-in-openat-function.patch
+6052e3b1e0f489edcba648a78122ec21f0e2e2085917b1d2544e5802b2c83e0d  0005-math-fix-x86_64-and-x32-asm-not-to-use-sahf-instruct.patch
+44905edc8b8c66b94c3428f029cd6aa5147074a02ca7f795bc8f92866ba328cf  0006-math-use-fnstsw-consistently-instead-of-fstsw-in-x87.patch
+46306557a669ac4e78a44664b49374a4a30eb041bba5f988bc666f29a2bba3d6  0007-fix-behavior-of-printf-with-alt-form-octal-zero-prec.patch
+a3ac50a13d60ed7115fa423030029513d0f5889b63b7047356234e05095d306c  0008-implement-a-private-state-for-the-uchar.h-functions.patch
+9300e0b2c7095fb070a43097c79aad34f019015dfcfae32ef946411537471d2f  0009-getopt-fix-optional-argument-processing.patch
+bb48d16025f1a8323673141a0d6e5b5e54ddfbf7056cf8e2e38343e55a85a67e  0010-adapt-dynamic-linker-for-new-binutils-versions-that-.patch
+44801a22c3cabc457043073a707412396c97fef0d0f49984818ee8df69f1b3d3  0011-add-support-for-non-option-arguments-extension-to-ge.patch
+e3622c3b84c0f984b864ecdf5d26f602723d81afee0c9c5dd5a2f0f1b6325965  0012-fix-uninitialized-output-from-sched_getaffinity.patch
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