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- Log ----------------------------------------------------------------- commit 53c4826506f49cc3aebefed294a6e4af8bea4133 Author: Waldemar Brodkorb wbx@uclibc-ng.org Date: Mon Nov 30 18:32:12 2015 +0100

bfin: fix clashing with newer gcc

See here for a discussion about the problem: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47779

Latest gcc/binutils git can generate a working uClibc-ng toolchain. Binaries tested on Arcturus uCBF54x board via chroot from original firmware.

commit 037a5ae08a3e4dca516bc112fbfa1d1f05d1e67b Author: Waldemar Brodkorb wbx@uclibc-ng.org Date: Mon Nov 30 18:31:53 2015 +0100

bfin: use vfork.S again

Actually revert 711ad9f92c1cf992c4a3d9f4f709bd692be7789c, as it breaks vfork() on real hardware. So the common implementation no longer works for bfin.

commit a8cbdc3aaaca564e52ee77a9c5eff050ccd7d8a4 Author: Waldemar Brodkorb wbx@uclibc-ng.org Date: Tue Nov 24 22:07:16 2015 +0100

xtensa: avoid some compiler warnings

Signed-off-by: Max Filippov jcmvbkbc@gmail.com Signed-off-by: Waldemar Brodkorb wbx@uclibc-ng.org

-----------------------------------------------------------------------

Summary of changes: libc/sysdeps/linux/bfin/Makefile.arch | 2 +- libc/sysdeps/linux/bfin/sys/ucontext.h | 6 ++++++ libc/sysdeps/linux/bfin/vfork.S | 18 ++++++++++++++++++ .../sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h | 2 ++ 4 files changed, 27 insertions(+), 1 deletion(-) create mode 100644 libc/sysdeps/linux/bfin/vfork.S

diff --git a/libc/sysdeps/linux/bfin/Makefile.arch b/libc/sysdeps/linux/bfin/Makefile.arch index df76ab0..8e945cd 100644 --- a/libc/sysdeps/linux/bfin/Makefile.arch +++ b/libc/sysdeps/linux/bfin/Makefile.arch @@ -8,7 +8,7 @@ CSRC-y := bsdsetjmp.c clone.c \ sram-alloc.c sram-free.c dma-memcpy.c

-SSRC-y := __longjmp.S setjmp.S bsd-_setjmp.S +SSRC-y := __longjmp.S setjmp.S bsd-_setjmp.S vfork.S

CSRC-$(UCLIBC_LINUX_SPECIFIC) += cacheflush.c

diff --git a/libc/sysdeps/linux/bfin/sys/ucontext.h b/libc/sysdeps/linux/bfin/sys/ucontext.h index 4b3654d..b6e3a40 100644 --- a/libc/sysdeps/linux/bfin/sys/ucontext.h +++ b/libc/sysdeps/linux/bfin/sys/ucontext.h @@ -32,6 +32,11 @@ typedef int greg_t; /* Container for all general registers. */ typedef greg_t gregset_t[NGREG];

+/* There is no user thread context implementation for bfin, avoid + clashing with gcc symbols, see: + https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47779 +*/ +#if 0 /* Number of each register is the `gregset_t' array. */ enum { @@ -130,6 +135,7 @@ enum REG_SEQSTAT = 46 #define REG_SEQSTAT REG_SEQSTAT }; +#endif

/* Context to describe whole processor state. */ typedef struct diff --git a/libc/sysdeps/linux/bfin/vfork.S b/libc/sysdeps/linux/bfin/vfork.S new file mode 100644 index 0000000..d8e6557 --- /dev/null +++ b/libc/sysdeps/linux/bfin/vfork.S @@ -0,0 +1,18 @@ +/* + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <sys/syscall.h> + +.text +.global ___vfork +.hidden ___vfork +.type ___vfork,STT_FUNC; +.align 4 +___vfork: + p0 = __NR_vfork; + excpt 0; + rts; +.size ___vfork,.-___vfork +weak_alias(__vfork,vfork) +libc_hidden_weak(vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h index 02fe278..be1b5ab 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h @@ -25,6 +25,7 @@

#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt

+#ifdef __ASSEMBLER__ #if defined(__XTENSA_WINDOWED_ABI__) /* CENABLE/CDISABLE in PSEUDO below use call8, stack frame size must be * at least 32. @@ -117,6 +118,7 @@ #else #error Unsupported Xtensa ABI #endif +#endif

# ifdef IS_IN_libpthread # define CENABLE_FUNC __pthread_enable_asynccancel

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