Updated to fedora-glibc-20061130T1652 cvs/fedora-glibc-2_5_90-9

9 files changed, 123 insertions, 15 deletions

diff --git a/ChangeLog b/ChangeLog
index 2ade0a332c..e99851eec1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,18 @@
+2006-11-30  Jakub Jelinek  <jakub@redhat.com>
+
+	* sunrpc/svc_run.c (svc_run): Set my_pollfd to new_pollfd if realloc
+	succeeded.
+
+2006-11-29  Daniel Jacobowitz  <dan@codesourcery.com>
+	    Jakub Jelinek  <jakub@redhat.com>
+	    Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	* sysdeps/unix/sysv/linux/x86_64/sigaction.c (restore_rt): Add correct
+	unwind information.
+	* sysdeps/unix/sysv/linux/x86_64/Makefile: Provide symbols for
+	'restore_rt' even in the 'signal' directory.
+	* sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym: Extend the regs list.
+
 2006-11-27  Jakub Jelinek  <jakub@redhat.com>
 
 	[BZ #3559]
diff --git a/csu/Makefile b/csu/Makefile
index 0e2ae07cf7..1339b5d117 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -93,7 +93,8 @@ omit-deps += $(crtstuff)
 $(crtstuff:%=$(objpfx)%.o): %.o: %.S $(objpfx)defs.h
 	$(compile.S) -g0 $(ASFLAGS-.os) -o $@
 
-CFLAGS-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
+CFLAGS-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time) \
+		    -fno-asynchronous-unwind-tables
 
 vpath initfini.c $(sysdirs)
 
diff --git a/fedora/branch.mk b/fedora/branch.mk
index f3e425aa79..543abeec18 100644
--- a/fedora/branch.mk
+++ b/fedora/branch.mk
@@ -2,6 +2,6 @@
 glibc-branch := fedora
 glibc-base := HEAD
 DIST_BRANCH := devel
-COLLECTION := dist-fc4
-fedora-sync-date := 2006-11-28 10:37 UTC
-fedora-sync-tag := fedora-glibc-20061128T1037
+COLLECTION := dist-fc7
+fedora-sync-date := 2006-11-30 16:52 UTC
+fedora-sync-tag := fedora-glibc-20061130T1652
diff --git a/fedora/glibc.spec.in b/fedora/glibc.spec.in
index 8ba2ea5911..bd15991389 100644
--- a/fedora/glibc.spec.in
+++ b/fedora/glibc.spec.in
@@ -1,4 +1,4 @@
-%define glibcrelease 8
+%define glibcrelease 9
 %define auxarches i586 i686 athlon sparcv9 alphaev6
 %define xenarches i686 athlon
 %ifarch %{xenarches}
@@ -1534,6 +1534,15 @@ rm -f *.filelist*
 %endif
 
 %changelog
+* Thu Nov 30 2006 Jakub Jelinek <jakub@redhat.com> 2.5.90-9
+- fix last svc_run change (#217850)
+- on ppc64 build __libc_start_main without unwind info,
+  as it breaks MD_FROB_UPDATE_CONTEXT (#217729, #217775; in the
+  future that could be fixable just by providing .cfi_undefined r2
+  in __libc_start_main instead)
+- add unwind info for x86-64 restore_rt signal return landing pad
+  (#217087)
+
 * Tue Nov 28 2006 Jakub Jelinek <jakub@redhat.com> 2.5.90-8
 - fix svc_run (#216834, BZ#3559)
 - add -fasynchronous-unwind-tables to CFLAGS (#216518)
diff --git a/sunrpc/svc_run.c b/sunrpc/svc_run.c
index feb1bf958e..f1f47fbf30 100644
--- a/sunrpc/svc_run.c
+++ b/sunrpc/svc_run.c
@@ -71,6 +71,7 @@ svc_run (void)
 	      break;
 	    }
 
+	  my_pollfd = new_pollfd;
 	  last_max_pollfd = max_pollfd;
 	}
 
diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile
index 78d4f07e57..6396e301de 100644
--- a/sysdeps/powerpc/powerpc64/Makefile
+++ b/sysdeps/powerpc/powerpc64/Makefile
@@ -30,6 +30,7 @@ ifneq ($(elf),no)
 # we use -fpic instead which is much better.
 CFLAGS-initfini.s += -fpic -O1
 endif
+CFLAGS-libc-start.c += -fno-asynchronous-unwind-tables
 endif
 
 ifeq ($(subdir),elf)
diff --git a/sysdeps/unix/sysv/linux/x86_64/Makefile b/sysdeps/unix/sysv/linux/x86_64/Makefile
index 0f20367236..bdad5063df 100644
--- a/sysdeps/unix/sysv/linux/x86_64/Makefile
+++ b/sysdeps/unix/sysv/linux/x86_64/Makefile
@@ -10,6 +10,6 @@ ifeq ($(subdir),stdlib)
 sysdep_routines += __start_context
 endif
 
-ifeq ($(subdir),stdlib)
+ifeq ($(subdir),csu)
 gen-as-const-headers += ucontext_i.sym
 endif
diff --git a/sysdeps/unix/sysv/linux/x86_64/sigaction.c b/sysdeps/unix/sysv/linux/x86_64/sigaction.c
index b83e98a77e..0d56364ab7 100644
--- a/sysdeps/unix/sysv/linux/x86_64/sigaction.c
+++ b/sysdeps/unix/sysv/linux/x86_64/sigaction.c
@@ -33,6 +33,8 @@
    translate it here.  */
 #include <kernel_sigaction.h>
 
+#include "ucontext_i.h"
+
 /* We do not globally define the SA_RESTORER flag so do it here.  */
 #define SA_RESTORER 0x04000000
 
@@ -90,18 +92,94 @@ weak_alias (__libc_sigaction, sigaction)
    signal handlers work right.  Important are both the names
    (__restore_rt) and the exact instruction sequence.
    If you ever feel the need to make any changes, please notify the
-   appropriate GDB maintainer.  */
+   appropriate GDB maintainer.
+
+   The unwind information starts a byte before __restore_rt, so that
+   it is found when unwinding, to get an address the unwinder assumes
+   will be in the middle of a call instruction.  See the Linux kernel
+   (the i386 vsyscall, in particular) for an explanation of the complex
+   unwind information used here in order to get the traditional CFA.
+   We do not restore cs - it's only stored as two bytes here so that's
+   a bit tricky.  We don't use the gas cfi directives, so that we can
+   reliably add .cfi_signal_frame.  */
+
+#define do_cfa_expr						\
+  "	.byte 0x0f\n"		/* DW_CFA_def_cfa_expression */	\
+  "	.uleb128 2f-1f\n"	/* length */			\
+  "1:	.byte 0x77\n"		/* DW_OP_breg7 */		\
+  "	.sleb128 " CFI_STRINGIFY (oRSP) "\n"			\
+  "	.byte 0x06\n"		/* DW_OP_deref */		\
+  "2:"
+
+#define do_expr(regno, offset)					\
+  "	.byte 0x10\n"		/* DW_CFA_expression */		\
+  "	.uleb128 " CFI_STRINGIFY (regno) "\n"			\
+  "	.uleb128 2f-1f\n"	/* length */			\
+  "1:	.byte 0x77\n"		/* DW_OP_breg7 */		\
+  "	.sleb128 " CFI_STRINGIFY (offset) "\n"			\
+  "2:"
 
 #define RESTORE(name, syscall) RESTORE2 (name, syscall)
 # define RESTORE2(name, syscall) \
-asm						\
-  (						\
-   ".align 16\n"				\
-   CFI_STARTPROC "\n"				\
-   "__" #name ":\n"				\
-   "	movq $" #syscall ", %rax\n"		\
-   "	syscall\n"				\
-   CFI_ENDPROC "\n"				\
+asm									\
+  (									\
+   /* `nop' for debuggers assuming `call' should not disalign the code.  */ \
+   "	nop\n"								\
+   ".align 16\n"							\
+   ".LSTART_" #name ":\n"						\
+   "	.type __" #name ",@function\n"					\
+   "__" #name ":\n"							\
+   "	movq $" #syscall ", %rax\n"					\
+   "	syscall\n"							\
+   ".LEND_" #name ":\n"							\
+   ".section .eh_frame,\"a\",@progbits\n"				\
+   ".LSTARTFRAME_" #name ":\n"						\
+   "	.long .LENDCIE_" #name "-.LSTARTCIE_" #name "\n"		\
+   ".LSTARTCIE_" #name ":\n"						\
+   "	.long 0\n"	/* CIE ID */					\
+   "	.byte 1\n"	/* Version number */				\
+   "	.string \"zRS\"\n" /* NUL-terminated augmentation string */	\
+   "	.uleb128 1\n"	/* Code alignment factor */			\
+   "	.sleb128 -8\n"	/* Data alignment factor */			\
+   "	.uleb128 16\n"	/* Return address register column (rip) */	\
+   /* Augmentation value length */					\
+   "	.uleb128 .LENDAUGMNT_" #name "-.LSTARTAUGMNT_" #name "\n"	\
+   ".LSTARTAUGMNT_" #name ":\n"						\
+   "	.byte 0x1b\n"	/* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */		\
+   ".LENDAUGMNT_" #name ":\n"						\
+   "	.align 8\n"							\
+   ".LENDCIE_" #name ":\n"						\
+   "	.long .LENDFDE_" #name "-.LSTARTFDE_" #name "\n" /* FDE len */	\
+   ".LSTARTFDE_" #name ":\n"						\
+   "	.long .LSTARTFDE_" #name "-.LSTARTFRAME_" #name "\n" /* CIE */	\
+   /* `LSTART_' is subtracted 1 as debuggers assume a `call' here.  */	\
+   "	.long (.LSTART_" #name "-1)-.\n" /* PC-relative start addr.  */	\
+   "	.long .LEND_" #name "-(.LSTART_" #name "-1)\n"			\
+   "	.uleb128 0\n"			/* FDE augmentation length */	\
+   do_cfa_expr								\
+   do_expr (8 /* r8 */, oR8)						\
+   do_expr (9 /* r9 */, oR9)						\
+   do_expr (10 /* r10 */, oR10)						\
+   do_expr (11 /* r11 */, oR11)						\
+   do_expr (12 /* r12 */, oR12)						\
+   do_expr (13 /* r13 */, oR13)						\
+   do_expr (14 /* r14 */, oR14)						\
+   do_expr (15 /* r15 */, oR15)						\
+   do_expr (5 /* rdi */, oRDI)						\
+   do_expr (4 /* rsi */, oRSI)						\
+   do_expr (6 /* rbp */, oRBP)						\
+   do_expr (3 /* rbx */, oRBX)						\
+   do_expr (1 /* rdx */, oRDX)						\
+   do_expr (0 /* rax */, oRAX)						\
+   do_expr (2 /* rcx */, oRCX)						\
+   do_expr (7 /* rsp */, oRSP)						\
+   do_expr (16 /* rip */, oRIP)						\
+   do_expr (49 /* rflags */, oEFL)					\
+   /* `cs'/`ds'/`fs' are unaligned and a different size.  */		\
+   /* gas: Error: register save offset not a multiple of 8  */		\
+   "	.align 8\n"							\
+   ".LENDFDE_" #name ":\n"						\
+   "	.previous\n"							\
    );
 /* The return code for realtime-signals.  */
 RESTORE (restore_rt, __NR_rt_sigreturn)
diff --git a/sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym b/sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym
index b3cfe9aa4c..af3e0e544b 100644
--- a/sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym
+++ b/sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym
@@ -18,6 +18,8 @@ oRSP		mreg (RSP)
 oRBX		mreg (RBX)
 oR8		mreg (R8)
 oR9		mreg (R9)
+oR10		mreg (R10)
+oR11		mreg (R11)
 oR12		mreg (R12)
 oR13		mreg (R13)
 oR14		mreg (R14)
@@ -28,6 +30,7 @@ oRDX		mreg (RDX)
 oRAX		mreg (RAX)
 oRCX		mreg (RCX)
 oRIP		mreg (RIP)
+oEFL		mreg (EFL)
 oFPREGS		mcontext (fpregs)
 oSIGMASK	ucontext (uc_sigmask)
 oFPREGSMEM	ucontext (__fpregs_mem)