From 37582bc7433d788408ba94cee69659153b442a0b Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 30 Nov 2006 17:07:38 +0000 Subject: [PATCH] Updated to fedora-glibc-20061130T1652 --- ChangeLog | 15 +++++ csu/Makefile | 3 +- fedora/branch.mk | 6 +- fedora/glibc.spec.in | 11 ++- sunrpc/svc_run.c | 1 + sysdeps/powerpc/powerpc64/Makefile | 1 + sysdeps/unix/sysv/linux/x86_64/Makefile | 2 +- sysdeps/unix/sysv/linux/x86_64/sigaction.c | 96 ++++++++++++++++++++++++--- sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym | 3 + 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 + + * sunrpc/svc_run.c (svc_run): Set my_pollfd to new_pollfd if realloc + succeeded. + +2006-11-29 Daniel Jacobowitz + Jakub Jelinek + Jan Kratochvil + + * 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 [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 $(sysdirs) diff --git a/fedora/branch.mk b/fedora/branch.mk index f3e425aa79..543abeec18 100644 --- a/fedora/branch.mk +++ b/fedora/branch.mk @@ -2,6 +2,6 @@ glibc-branch := fedora glibc-base := HEAD DIST_BRANCH := devel -COLLECTION := dist-fc4 -fedora-sync-date := 2006-11-28 10:37 UTC -fedora-sync-tag := fedora-glibc-20061128T1037 +COLLECTION := dist-fc7 +fedora-sync-date := 2006-11-30 16:52 UTC +fedora-sync-tag := fedora-glibc-20061130T1652 diff --git a/fedora/glibc.spec.in b/fedora/glibc.spec.in index 8ba2ea5911..bd15991389 100644 --- a/fedora/glibc.spec.in +++ b/fedora/glibc.spec.in @@ -1,4 +1,4 @@ -%define glibcrelease 8 +%define glibcrelease 9 %define auxarches i586 i686 athlon sparcv9 alphaev6 %define xenarches i686 athlon %ifarch %{xenarches} @@ -1534,6 +1534,15 @@ rm -f *.filelist* %endif %changelog +* Thu Nov 30 2006 Jakub Jelinek 2.5.90-9 +- fix last svc_run change (#217850) +- on ppc64 build __libc_start_main without unwind info, + as it breaks MD_FROB_UPDATE_CONTEXT (#217729, #217775; in the + future that could be fixable just by providing .cfi_undefined r2 + in __libc_start_main instead) +- add unwind info for x86-64 restore_rt signal return landing pad + (#217087) + * Tue Nov 28 2006 Jakub Jelinek 2.5.90-8 - fix svc_run (#216834, BZ#3559) - add -fasynchronous-unwind-tables to CFLAGS (#216518) diff --git a/sunrpc/svc_run.c b/sunrpc/svc_run.c index feb1bf958e..f1f47fbf30 100644 --- a/sunrpc/svc_run.c +++ b/sunrpc/svc_run.c @@ -71,6 +71,7 @@ svc_run (void) break; } + my_pollfd = new_pollfd; last_max_pollfd = max_pollfd; } diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile index 78d4f07e57..6396e301de 100644 --- a/sysdeps/powerpc/powerpc64/Makefile +++ b/sysdeps/powerpc/powerpc64/Makefile @@ -30,6 +30,7 @@ ifneq ($(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 +#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) -- 2.11.4.GIT