From: Ulrich Drepper Date: Thu, 6 Jan 2000 00:10:15 +0000 (+0000) Subject: Update. X-Git-Tag: cvs/glibc_2-1-91~1161 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=542493f93c68755e0c005309e061d5a5a42142ac;p=platform%2Fupstream%2Fglibc.git Update. 2000-01-05 Philip Blundell * sysdeps/arm/frame.h: New file. * sysdeps/generic/frame.h: Likewise. * sysdeps/generic/segfault.c (struct layout): Delete definition; include the above file instead. * sysdeps/generic/backtrace.c (struct layout): Likewise. (__backtrace): Use ADVANCE_STACK_FRAME. * sysdeps/unix/sysv/linux/arm/sigcontextinfo.h (ADVANCE_STACK_FRAME): New macro. (GET_FRAME): Apply above to returned value. * sysdeps/unix/sysv/linux/arm/bits/armsigctx.h: Add `fault_address'. --- diff --git a/ChangeLog b/ChangeLog index f59386e..3d2ac73 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,17 @@ +2000-01-05 Philip Blundell + + * sysdeps/arm/frame.h: New file. + * sysdeps/generic/frame.h: Likewise. + * sysdeps/generic/segfault.c (struct layout): Delete definition; + include the above file instead. + * sysdeps/generic/backtrace.c (struct layout): Likewise. + (__backtrace): Use ADVANCE_STACK_FRAME. + * sysdeps/unix/sysv/linux/arm/sigcontextinfo.h + (ADVANCE_STACK_FRAME): New macro. + (GET_FRAME): Apply above to returned value. + + * sysdeps/unix/sysv/linux/arm/bits/armsigctx.h: Add `fault_address'. + 2000-01-05 Ulrich Drepper * sysdeps/posix/getaddrinfo.c: Add support for SOCK_RAW. diff --git a/sysdeps/arm/frame.h b/sysdeps/arm/frame.h new file mode 100644 index 0000000..16f329c --- /dev/null +++ b/sysdeps/arm/frame.h @@ -0,0 +1,26 @@ +/* Definition of stack frame structure. ARM/APCS version. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This is the APCS stack backtrace structure. */ +struct layout +{ + struct layout *next; + void *sp; + void *return_address; +}; diff --git a/sysdeps/generic/backtrace.c b/sysdeps/generic/backtrace.c index 2d329e1..3eae3f4 100644 --- a/sysdeps/generic/backtrace.c +++ b/sysdeps/generic/backtrace.c @@ -19,7 +19,8 @@ Boston, MA 02111-1307, USA. */ #include - +#include +#include /* This is a global variable set at program start time. It marks the highest used stack address. */ @@ -49,11 +50,11 @@ extern void *__libc_stack_end; # define INNER_THAN < #endif -struct layout -{ - struct layout *next; - void *return_address; -}; +/* By default assume the `next' pointer in struct layout points to the + next struct layout. */ +#ifndef ADVANCE_STACK_FRAME +# define ADVANCE_STACK_FRAME(next) ((struct layout *) (next)) +#endif int __backtrace (array, size) @@ -81,7 +82,7 @@ __backtrace (array, size) array[cnt++] = current->return_address; - current = current->next; + current = ADVANCE_STACK_FRAME (current->next); } return cnt; diff --git a/sysdeps/generic/frame.h b/sysdeps/generic/frame.h new file mode 100644 index 0000000..7ad7a64 --- /dev/null +++ b/sysdeps/generic/frame.h @@ -0,0 +1,24 @@ +/* Definition of stack frame structure. Generic version. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +struct layout +{ + void *next; + void *return_address; +}; diff --git a/sysdeps/generic/segfault.c b/sysdeps/generic/segfault.c index b1bb178..41e3aa5 100644 --- a/sysdeps/generic/segfault.c +++ b/sysdeps/generic/segfault.c @@ -28,6 +28,9 @@ #include #include +/* Get the definition of "struct layout". */ +#include + /* This file defines macros to access the content of the sigcontext element passed up by the signal handler. */ #include @@ -72,14 +75,6 @@ extern void *__libc_stack_end; /* We'll use tis a lot. */ #define WRITE_STRING(s) write (fd, s, strlen (s)) - -struct layout -{ - void *next; - void *return_address; -}; - - /* Name of the output file. */ static const char *fname; diff --git a/sysdeps/unix/sysv/linux/arm/bits/armsigctx.h b/sysdeps/unix/sysv/linux/arm/bits/armsigctx.h index 3435a96..636a93b 100644 --- a/sysdeps/unix/sysv/linux/arm/bits/armsigctx.h +++ b/sysdeps/unix/sysv/linux/arm/bits/armsigctx.h @@ -1,5 +1,5 @@ /* Definition of `struct sigcontext' for Linux/ARM - Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -21,6 +21,12 @@ Fortunately 2.0 puts a magic number in the first word and this is not a legal value for `trap_no', so we can tell them apart. */ +/* Early 2.2 and 2.3 kernels do not have the `fault_address' member in + the sigcontext structure. Unfortunately there is no reliable way + to test for its presence and this word will contain garbage for too-old + kernels. Versions 2.2.14 and 2.3.35 (plus later versions) are known to + include this element. */ + #ifndef __ARMSIGCTX_H #define __ARMSIGCTX_H 1 @@ -50,6 +56,7 @@ union k_sigcontext unsigned long int arm_lr; unsigned long int arm_pc; unsigned long int arm_cpsr; + unsigned long fault_address; } v21; struct { diff --git a/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h b/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h index 7f6ecbd..1aaca1e 100644 --- a/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h +++ b/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h @@ -24,7 +24,10 @@ #define GET_PC(ctx) ((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \ ctx.v20.reg.ARM_pc : ctx.v21.arm_pc)) -#define GET_FRAME(ctx) ((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \ +#define GET_FRAME(ctx) \ + ADVANCE_STACK_FRAME((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \ ctx.v20.reg.ARM_fp : ctx.v21.arm_fp)) #define GET_STACK(ctx) ((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \ ctx.v20.reg.ARM_sp : ctx.v21.arm_sp)) +#define ADVANCE_STACK_FRAME(frm) \ + ((struct layout *)frm - 1)