Update to musl 1.1.24.

See the WHATSNEW file for details; this doesn't have any major changes
for wasi-libc; in particular, the new catgets and GLOB_TILDE features
are disabled.

Author: sunfishcode

expected/wasm32-wasi/defined-symbols.txt

@@ -139,6 +139,7 @@ __log2_data
 __log2f_data
 __log_data
 __logf_data
+__lseek
 __math_divzero
 __math_divzerof
 __math_invalid

expected/wasm32-wasi/predefined-macros.txt

@@ -597,8 +597,8 @@
 #define ILL_PRVOPC 5
 #define ILL_PRVREG 6
 #define IN6ADDRSZ NS_IN6ADDRSZ
-#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
-#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
+#define IN6ADDR_ANY_INIT { { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } }
+#define IN6ADDR_LOOPBACK_INIT { { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } }
 #define IN6_ARE_ADDR_EQUAL(a,b) __ARE_4_EQUAL((const uint32_t *)(a), (const uint32_t *)(b))
 #define IN6_IS_ADDR_LINKLOCAL(a) ((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0x80)
 #define IN6_IS_ADDR_LOOPBACK(a) (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && ((uint32_t *) (a))[2] == 0 && ((uint8_t *) (a))[12] == 0 && ((uint8_t *) (a))[13] == 0 && ((uint8_t *) (a))[14] == 0 && ((uint8_t *) (a))[15] == 1 )

libc-bottom-half/cloudlibc/src/libc/unistd/lseek.c

@@ -11,10 +11,10 @@ static_assert(SEEK_CUR == __WASI_WHENCE_CUR, "Value mismatch");
 static_assert(SEEK_END == __WASI_WHENCE_END, "Value mismatch");
 static_assert(SEEK_SET == __WASI_WHENCE_SET, "Value mismatch");
 
-#ifdef __wasilibc_unmodified_upstream /* Optimize the readonly case of lseek */
+#ifdef __wasilibc_unmodified_upstream // Provide an __lseek entry point
 off_t lseek(int fildes, off_t offset, int whence) {
 #else
-off_t (lseek)(int fildes, off_t offset, int whence) {
+off_t __lseek(int fildes, off_t offset, int whence) {
 #endif
   __wasi_filesize_t new_offset;
   __wasi_errno_t error =
@@ -25,3 +25,8 @@ off_t (lseek)(int fildes, off_t offset, int whence) {
   }
   return new_offset;
 }
+
+#ifdef __wasilibc_unmodified_upstream // Provide an __lseek entry point
+#else
+extern __typeof(__lseek) lseek __attribute__((weak, alias("__lseek")));
+#endif

libc-bottom-half/headers/public/__header_netinet_in.h

@@ -13,4 +13,18 @@
 #define IPPROTO_IPV6 41
 #define IPPROTO_RAW 255
 
+#define IN6ADDR_ANY_INIT { { \
+    0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00  \
+} }
+
+#define IN6ADDR_LOOPBACK_INIT { { \
+    0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x00, \
+    0x00, 0x00, 0x00, 0x01  \
+} }
+
 #endif

libc-bottom-half/headers/public/__struct_in6_addr.h

@@ -2,7 +2,7 @@
 #define __wasilibc___struct_in6_addr_h
 
 struct in6_addr {
-    _Alignas(long) unsigned char s6_addr[16];
+    _Alignas(int32_t) unsigned char s6_addr[16];
 };
 
 #endif

libc-top-half/musl/COPYRIGHT

@@ -122,7 +122,8 @@ Copyright © 1993,2004 Sun Microsystems or
 Copyright © 2003-2011 David Schultz or
 Copyright © 2003-2009 Steven G. Kargl or
 Copyright © 2003-2009 Bruce D. Evans or
-Copyright © 2008 Stephen L. Moshier
+Copyright © 2008 Stephen L. Moshier or
+Copyright © 2017-2018 Arm Limited
 and labelled as such in comments in the individual source files. All
 have been licensed under extremely permissive terms.
 

libc-top-half/musl/INSTALL

@@ -55,12 +55,13 @@ and ABI combinations:
     * Little-endian default; big-endian variants also supported
 
 * MIPS
-    * ABI is o32
+    * ABI is o32, fp32/fpxx (except on r6 which is fp64)
     * Big-endian default; little-endian variants also supported
     * Default ABI variant uses FPU registers; alternate soft-float ABI
       that does not use FPU registers or instructions is available
     * MIPS2 or later, or kernel emulation of ll/sc (standard in Linux)
       is required
+    * MIPS32r6, an incompatible ISA, is supported as a variant "mipsr6"
 
 * MIPS64
     * ABI is n64 (LP64) or n32 (ILP32)

libc-top-half/musl/VERSION

@@ -1 +1 @@
-1.1.23
+1.1.24

libc-top-half/musl/WHATSNEW

@@ -2115,3 +2115,52 @@ arch-specfic bugs fixed:
 - passing of 64-bit syscall arguments was broken on microblaze
 - posix_fadvise was broken on mips due to missing 7-arg syscall support
 - vrregset_t layout and member naming was wrong on powerpc64
+
+
+
+1.1.24 release notes
+
+new features:
+- GLOB_TILDE extension to glob
+- non-stub catgets localization API, using netbsd binary catalog format
+- posix_spawn file actions for [f]chdir (extension, pending future standard)
+- secure_getenv function (extension)
+- copy_file_range syscall wrapper (Linux extension)
+- header-level support for new linux features in 5.2
+
+performance:
+- new fast path for lrint (generic C version) on 32-bit archs
+
+major internal changes:
+- functions involving time are overhauled to be time64-ready in 32-bit archs
+- x32 uses the new time64 code paths to replace nasty hacks in syscall glue
+
+compatibility & conformance:
+- support for powerpc[64] unaligned relocation types
+- powerpc[64] and sh sys/user.h no longer clash with kernel asm/ptrace.h
+- select no longer modifies timeout on failure (or at all)
+- mips64 stat results are no longer limited to 32-bit time range
+- optreset (BSD extension) now has a public declaration
+- support for clang inconsistencies in wchar_t type vs some 32-bit archs
+- mips r6 syscall asm no longer has invalid lo/hi register clobbers
+- vestigial asm declarations of __tls_get_new are removed (broke some tooling)
+- riscv64 mcontext_t mismatch glibc's member naming is corrected
+
+bugs fixed:
+- glob failed to match broken symlinks consistently
+- invalid use of interposed calloc to allocate initial TLS
+- various dlsym symbol resolution logic errors
+- semctl with SEM_STAT_ANY didn't work
+- pthread_create with explicit scheduling was subject to priority inversion
+- pthread_create failure path had data race for thread count
+- timer_create with SIGEV_THREAD notification had data race getting timer id
+- wide printf family failed to support l modifier for float formats
+
+arch-specific bugs fixed:
+- x87 floating point stack imbalance in math asm (i386-only CVE-2019-14697)
+- x32 clock_adjtime, getrusage, wait3, wait4 produced junk (struct mismatches)
+- lseek broken on x32 and mipsn32 with large file offsets
+- riscv64 atomics weren't compiler barriers
+- riscv64 atomics had broken asm constraints (missing earlyclobber flag)
+- arm clone() was broken when compiled as thumb if start function returned
+- mipsr6 setjmp/longjmp did not preserve fpu register state correctly

libc-top-half/musl/arch/aarch64/bits/hwcap.h

@@ -30,3 +30,11 @@
 #define HWCAP_SB		(1 << 29)
 #define HWCAP_PACA		(1 << 30)
 #define HWCAP_PACG		(1UL << 31)
+
+#define HWCAP2_DCPODP		(1 << 0)
+#define HWCAP2_SVE2		(1 << 1)
+#define HWCAP2_SVEAES		(1 << 2)
+#define HWCAP2_SVEPMULL		(1 << 3)
+#define HWCAP2_SVEBITPERM	(1 << 4)
+#define HWCAP2_SVESHA3		(1 << 5)
+#define HWCAP2_SVESM4		(1 << 6)