include $(INCLUDE_DIR)/target.mk
PKG_NAME:=musl
-PKG_VERSION:=1.1.24
-PKG_RELEASE:=3
+PKG_VERSION:=1.2.2
+PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=https://musl.libc.org/releases/
-PKG_HASH:=1370c9a812b2cf2a7d92802510cca0058cc37e66a7bedd70051f0a34015022a3
+PKG_HASH:=9b969322012d796dc23dda27a35866034fa67d8fb67e0e2c45c913c3d43219dd
LIBC_SO_VERSION:=$(PKG_VERSION)
PATCH_DIR:=$(PATH_PREFIX)/patches
#ifndef _FEATURES_H
#define _FEATURES_H
-#ifdef _ALL_SOURCE
+#if defined(_ALL_SOURCE) && !defined(_GNU_SOURCE)
#define _GNU_SOURCE 1
#endif
+#if defined(_DEFAULT_SOURCE) && !defined(_BSD_SOURCE)
+#define _BSD_SOURCE 1
+#endif
+
#if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) \
&& !defined(_XOPEN_SOURCE) && !defined(_GNU_SOURCE) \
&& !defined(_BSD_SOURCE) && !defined(__STRICT_ANSI__)
#if __STDC_VERSION__ >= 199901L || defined(__cplusplus)
#define __inline inline
+#elif !defined(__GNUC__)
+#define __inline
#endif
#if __STDC_VERSION__ >= 201112L
#define _Noreturn
#endif
+#define __REDIR(x,y) __typeof__(x) x __asm__(#y)
+
/* Convenience macros to test the versions of glibc and gcc.
Use them like this:
#if __GNUC_PREREQ (2,8)
--- a/src/time/__tz.c
+++ b/src/time/__tz.c
-@@ -25,6 +25,9 @@ static int r0[5], r1[5];
+@@ -31,6 +31,9 @@ static int r0[5], r1[5];
static const unsigned char *zi, *trans, *index, *types, *abbrevs, *abbrevs_end;
static size_t map_size;
static char old_tz_buf[32];
static char *old_tz = old_tz_buf;
static size_t old_tz_size = sizeof old_tz_buf;
-@@ -125,6 +128,15 @@ static void do_tzset()
+@@ -132,6 +135,15 @@ static void do_tzset()
"/usr/share/zoneinfo/\0/share/zoneinfo/\0/etc/zoneinfo/\0";
s = getenv("TZ");
--- a/Makefile
+++ b/Makefile
-@@ -66,7 +66,7 @@ CRT_LIBS = $(addprefix lib/,$(notdir $(C
+@@ -67,7 +67,7 @@ CRT_LIBS = $(addprefix lib/,$(notdir $(C
STATIC_LIBS = lib/libc.a
SHARED_LIBS = lib/libc.so
TOOL_LIBS = lib/musl-gcc.specs
ALL_TOOLS = obj/musl-gcc
WRAPCC_GCC = gcc
-@@ -86,7 +86,7 @@ else
+@@ -88,7 +88,7 @@ else
all: $(ALL_LIBS) $(ALL_TOOLS)
$(ALL_LIBS) $(ALL_TOOLS) $(ALL_OBJS) $(ALL_OBJS:%.o=%.lo) $(GENH) $(GENH_INT): | $(OBJ_DIRS)
-@@ -113,6 +113,8 @@ obj/crt/rcrt1.o: $(srcdir)/ldso/dlstart.
+@@ -115,6 +115,8 @@ obj/crt/rcrt1.o: $(srcdir)/ldso/dlstart.
obj/crt/Scrt1.o obj/crt/rcrt1.o: CFLAGS_ALL += -fPIC
OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=$(srcdir)/src/%))
$(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.o) $(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.lo): CFLAGS += -O3
-@@ -165,6 +167,11 @@ lib/libc.a: $(AOBJS)
+@@ -167,6 +169,11 @@ lib/libc.a: $(AOBJS)
$(AR) rc $@ $(AOBJS)
$(RANLIB) $@
--- a/Makefile
+++ b/Makefile
-@@ -215,7 +215,7 @@ $(DESTDIR)$(includedir)/%: $(srcdir)/inc
+@@ -217,7 +217,7 @@ $(DESTDIR)$(includedir)/%: $(srcdir)/inc
$(INSTALL) -D -m 644 $< $@
$(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(libdir)/libc.so
+++ /dev/null
-From 4d5aa20a94a2d3fae3e69289dc23ecafbd0c16c4 Mon Sep 17 00:00:00 2001
-From: Rich Felker <dalias@aerifal.cx>
-Date: Fri, 22 May 2020 17:35:14 -0400
-Subject: [PATCH 1/4] reorder thread list unlink in pthread_exit after all
- locks
-
-since the backend for LOCK() skips locking if single-threaded, it's
-unsafe to make the process appear single-threaded before the last use
-of lock.
-
-this fixes potential unsynchronized access to a linked list via
-__dl_thread_cleanup.
----
- src/thread/pthread_create.c | 19 +++++++++++--------
- 1 file changed, 11 insertions(+), 8 deletions(-)
-
---- a/src/thread/pthread_create.c
-+++ b/src/thread/pthread_create.c
-@@ -90,14 +90,7 @@ _Noreturn void __pthread_exit(void *resu
- exit(0);
- }
-
-- /* At this point we are committed to thread termination. Unlink
-- * the thread from the list. This change will not be visible
-- * until the lock is released, which only happens after SYS_exit
-- * has been called, via the exit futex address pointing at the lock. */
-- libc.threads_minus_1--;
-- self->next->prev = self->prev;
-- self->prev->next = self->next;
-- self->prev = self->next = self;
-+ /* At this point we are committed to thread termination. */
-
- /* Process robust list in userspace to handle non-pshared mutexes
- * and the detached thread case where the robust list head will
-@@ -121,6 +114,16 @@ _Noreturn void __pthread_exit(void *resu
- __do_orphaned_stdio_locks();
- __dl_thread_cleanup();
-
-+ /* Last, unlink thread from the list. This change will not be visible
-+ * until the lock is released, which only happens after SYS_exit
-+ * has been called, via the exit futex address pointing at the lock.
-+ * This needs to happen after any possible calls to LOCK() that might
-+ * skip locking if libc.threads_minus_1 is zero. */
-+ libc.threads_minus_1--;
-+ self->next->prev = self->prev;
-+ self->prev->next = self->next;
-+ self->prev = self->next = self;
-+
- /* This atomic potentially competes with a concurrent pthread_detach
- * call; the loser is responsible for freeing thread resources. */
- int state = a_cas(&self->detach_state, DT_JOINABLE, DT_EXITING);
+++ /dev/null
-From e01b5939b38aea5ecbe41670643199825874b26c Mon Sep 17 00:00:00 2001
-From: Rich Felker <dalias@aerifal.cx>
-Date: Thu, 21 May 2020 23:32:45 -0400
-Subject: [PATCH 2/4] don't use libc.threads_minus_1 as relaxed atomic for
- skipping locks
-
-after all but the last thread exits, the next thread to observe
-libc.threads_minus_1==0 and conclude that it can skip locking fails to
-synchronize with any changes to memory that were made by the
-last-exiting thread. this can produce data races.
-
-on some archs, at least x86, memory synchronization is unlikely to be
-a problem; however, with the inline locks in malloc, skipping the lock
-also eliminated the compiler barrier, and caused code that needed to
-re-check chunk in-use bits after obtaining the lock to reuse a stale
-value, possibly from before the process became single-threaded. this
-in turn produced corruption of the heap state.
-
-some uses of libc.threads_minus_1 remain, especially for allocation of
-new TLS in the dynamic linker; otherwise, it could be removed
-entirely. it's made non-volatile to reflect that the remaining
-accesses are only made under lock on the thread list.
-
-instead of libc.threads_minus_1, libc.threaded is now used for
-skipping locks. the difference is that libc.threaded is permanently
-true once an additional thread has been created. this will produce
-some performance regression in processes that are mostly
-single-threaded but occasionally creating threads. in the future it
-may be possible to bring back the full lock-skipping, but more care
-needs to be taken to produce a safe design.
----
- src/internal/libc.h | 2 +-
- src/malloc/malloc.c | 2 +-
- src/thread/__lock.c | 2 +-
- 3 files changed, 3 insertions(+), 3 deletions(-)
-
---- a/src/internal/libc.h
-+++ b/src/internal/libc.h
-@@ -21,7 +21,7 @@ struct __libc {
- int can_do_threads;
- int threaded;
- int secure;
-- volatile int threads_minus_1;
-+ int threads_minus_1;
- size_t *auxv;
- struct tls_module *tls_head;
- size_t tls_size, tls_align, tls_cnt;
---- a/src/malloc/malloc.c
-+++ b/src/malloc/malloc.c
-@@ -26,7 +26,7 @@ int __malloc_replaced;
-
- static inline void lock(volatile int *lk)
- {
-- if (libc.threads_minus_1)
-+ if (libc.threaded)
- while(a_swap(lk, 1)) __wait(lk, lk+1, 1, 1);
- }
-
---- a/src/thread/__lock.c
-+++ b/src/thread/__lock.c
-@@ -18,7 +18,7 @@
-
- void __lock(volatile int *l)
- {
-- if (!libc.threads_minus_1) return;
-+ if (!libc.threaded) return;
- /* fast path: INT_MIN for the lock, +1 for the congestion */
- int current = a_cas(l, 0, INT_MIN + 1);
- if (!current) return;
+++ /dev/null
-From f12888e9eb9eed60cc266b899dcafecb4752964a Mon Sep 17 00:00:00 2001
-From: Rich Felker <dalias@aerifal.cx>
-Date: Fri, 22 May 2020 17:25:38 -0400
-Subject: [PATCH 3/4] cut down size of some libc struct members
-
-these are all flags that can be single-byte values.
----
- src/internal/libc.h | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
---- a/src/internal/libc.h
-+++ b/src/internal/libc.h
-@@ -18,9 +18,9 @@ struct tls_module {
- };
-
- struct __libc {
-- int can_do_threads;
-- int threaded;
-- int secure;
-+ char can_do_threads;
-+ char threaded;
-+ char secure;
- int threads_minus_1;
- size_t *auxv;
- struct tls_module *tls_head;
+++ /dev/null
-From 8d81ba8c0bc6fe31136cb15c9c82ef4c24965040 Mon Sep 17 00:00:00 2001
-From: Rich Felker <dalias@aerifal.cx>
-Date: Fri, 22 May 2020 17:45:47 -0400
-Subject: [PATCH 4/4] restore lock-skipping for processes that return to
- single-threaded state
-
-the design used here relies on the barrier provided by the first lock
-operation after the process returns to single-threaded state to
-synchronize with actions by the last thread that exited. by storing
-the intent to change modes in the same object used to detect whether
-locking is needed, it's possible to avoid an extra (possibly costly)
-memory load after the lock is taken.
----
- src/internal/libc.h | 1 +
- src/malloc/malloc.c | 5 ++++-
- src/thread/__lock.c | 4 +++-
- src/thread/pthread_create.c | 8 ++++----
- 4 files changed, 12 insertions(+), 6 deletions(-)
-
---- a/src/internal/libc.h
-+++ b/src/internal/libc.h
-@@ -21,6 +21,7 @@ struct __libc {
- char can_do_threads;
- char threaded;
- char secure;
-+ volatile signed char need_locks;
- int threads_minus_1;
- size_t *auxv;
- struct tls_module *tls_head;
---- a/src/malloc/malloc.c
-+++ b/src/malloc/malloc.c
-@@ -26,8 +26,11 @@ int __malloc_replaced;
-
- static inline void lock(volatile int *lk)
- {
-- if (libc.threaded)
-+ int need_locks = libc.need_locks;
-+ if (need_locks) {
- while(a_swap(lk, 1)) __wait(lk, lk+1, 1, 1);
-+ if (need_locks < 0) libc.need_locks = 0;
-+ }
- }
-
- static inline void unlock(volatile int *lk)
---- a/src/thread/__lock.c
-+++ b/src/thread/__lock.c
-@@ -18,9 +18,11 @@
-
- void __lock(volatile int *l)
- {
-- if (!libc.threaded) return;
-+ int need_locks = libc.need_locks;
-+ if (!need_locks) return;
- /* fast path: INT_MIN for the lock, +1 for the congestion */
- int current = a_cas(l, 0, INT_MIN + 1);
-+ if (need_locks < 0) libc.need_locks = 0;
- if (!current) return;
- /* A first spin loop, for medium congestion. */
- for (unsigned i = 0; i < 10; ++i) {
---- a/src/thread/pthread_create.c
-+++ b/src/thread/pthread_create.c
-@@ -118,8 +118,8 @@ _Noreturn void __pthread_exit(void *resu
- * until the lock is released, which only happens after SYS_exit
- * has been called, via the exit futex address pointing at the lock.
- * This needs to happen after any possible calls to LOCK() that might
-- * skip locking if libc.threads_minus_1 is zero. */
-- libc.threads_minus_1--;
-+ * skip locking if process appears single-threaded. */
-+ if (!--libc.threads_minus_1) libc.need_locks = -1;
- self->next->prev = self->prev;
- self->prev->next = self->next;
- self->prev = self->next = self;
-@@ -339,7 +339,7 @@ int __pthread_create(pthread_t *restrict
- ~(1UL<<((SIGCANCEL-1)%(8*sizeof(long))));
-
- __tl_lock();
-- libc.threads_minus_1++;
-+ if (!libc.threads_minus_1++) libc.need_locks = 1;
- ret = __clone((c11 ? start_c11 : start), stack, flags, args, &new->tid, TP_ADJ(new), &__thread_list_lock);
-
- /* All clone failures translate to EAGAIN. If explicit scheduling
-@@ -363,7 +363,7 @@ int __pthread_create(pthread_t *restrict
- new->next->prev = new;
- new->prev->next = new;
- } else {
-- libc.threads_minus_1--;
-+ if (!--libc.threads_minus_1) libc.need_locks = 0;
- }
- __tl_unlock();
- __restore_sigs(&set);
+#define _GNU_SOURCE
#include <ftw.h>
#include <dirent.h>
- #include <sys/stat.h>
-@@ -63,8 +64,20 @@ static int do_nftw(char *path, int (*fn)
- lev.base = k;
+ #include <fcntl.h>
+@@ -72,8 +73,20 @@ static int do_nftw(char *path, int (*fn)
+ if (!fd_limit) close(dfd);
}
- if (!(flags & FTW_DEPTH) && (r=fn(path, &st, type, &lev)))
for (; h; h = h->chain)
if (h->dev == st.st_dev && h->ino == st.st_ino)
-@@ -88,7 +101,10 @@ static int do_nftw(char *path, int (*fn)
+@@ -101,7 +114,10 @@ static int do_nftw(char *path, int (*fn)
strcpy(path+j+1, de->d_name);
if ((r=do_nftw(path, fn, fd_limit-1, flags, &new))) {
closedir(d);
}
}
closedir(d);
-@@ -98,8 +114,16 @@ static int do_nftw(char *path, int (*fn)
+@@ -112,8 +128,16 @@ static int do_nftw(char *path, int (*fn)
}
path[l] = 0;
return 0;
}
-@@ -125,4 +149,5 @@ int nftw(const char *path, int (*fn)(con
+@@ -139,4 +163,5 @@ int nftw(const char *path, int (*fn)(con
return r;
}
+++ /dev/null
---- a/src/multibyte/wcsnrtombs.c
-+++ b/src/multibyte/wcsnrtombs.c
-@@ -1,41 +1,33 @@
- #include <wchar.h>
-+#include <limits.h>
-+#include <string.h>
-
- size_t wcsnrtombs(char *restrict dst, const wchar_t **restrict wcs, size_t wn, size_t n, mbstate_t *restrict st)
- {
-- size_t l, cnt=0, n2;
-- char *s, buf[256];
- const wchar_t *ws = *wcs;
-- const wchar_t *tmp_ws;
--
-- if (!dst) s = buf, n = sizeof buf;
-- else s = dst;
--
-- while ( ws && n && ( (n2=wn)>=n || n2>32 ) ) {
-- if (n2>=n) n2=n;
-- tmp_ws = ws;
-- l = wcsrtombs(s, &ws, n2, 0);
-- if (!(l+1)) {
-- cnt = l;
-- n = 0;
-+ size_t cnt = 0;
-+ if (!dst) n=0;
-+ while (ws && wn) {
-+ char tmp[MB_LEN_MAX];
-+ size_t l = wcrtomb(n<MB_LEN_MAX ? tmp : dst, *ws, 0);
-+ if (l==-1) {
-+ cnt = -1;
- break;
- }
-- if (s != buf) {
-- s += l;
-+ if (dst) {
-+ if (n<MB_LEN_MAX) {
-+ if (l>n) break;
-+ memcpy(dst, tmp, l);
-+ }
-+ dst += l;
- n -= l;
- }
-- wn = ws ? wn - (ws - tmp_ws) : 0;
-- cnt += l;
-- }
-- if (ws) while (n && wn) {
-- l = wcrtomb(s, *ws, 0);
-- if ((l+1)<=1) {
-- if (!l) ws = 0;
-- else cnt = l;
-+ if (!*ws) {
-+ ws = 0;
- break;
- }
-- ws++; wn--;
-- /* safe - this loop runs fewer than sizeof(buf) times */
-- s+=l; n-=l;
-+ ws++;
-+ wn--;
- cnt += l;
- }
- if (dst) *wcs = ws;
typedef uint32_t BF_word;
typedef int32_t BF_word_signed;
-@@ -796,3 +807,4 @@ char *__crypt_blowfish(const char *key,
+@@ -804,3 +815,4 @@ char *__crypt_blowfish(const char *key,
return "*";
}
projects / openwrt / openwrt.git / commitdiff