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* NEWS: Add Alpha Linux as a new native configuration. * mdebugread.c (parse_symbol): When we find a malloc() symbol with return type VOID, assume no debugging info is available for that object file and patch the return value into VOID *. Otherwise, operations requiring an implicit call to malloc() will fail. * infrun.c (wait_for_inferior): The criterion to detect entering a sigtramp handler is now: (a) the current pc is inside a sigtramp handler, (b) the previous pc is not in a sigtramp handler, and (c) the current stack pointer is "inner" than the old one. Condition (c) is new to avoid mistaking a return from a signal handler into sigtramp as a new sigtramp invocation. * dcache.c (struct dcache_block): Declare addr as CORE_ADDR. An int may not be big enough to hold an address. (dcache_hit): Ditto. (dcache_peek_byte): Fix indentation. * configure.in (alpha-*-linux*): Add target. * configure: Rebuild * config/alpha/tm-alpha.h (PROC_DESC_IS_DYN_SIGTRAMP): New macro. (SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (DYNAMIC_SIGTRAMP_OFFSET): Ditto. (SIGCONTEXT_ADDR): Ditto. (FRAME_PAST_SIGTRAMP_FRAME): Ditto. * config/alpha/alpha-linux.mh: New file. * config/alpha/alpha-linux.mt: Ditto. * config/alpha/nm-linux.h: Ditto. * config/alpha/tm-alphalinux.h: Ditto. * config/alpha/xm-alphalinux.h: Ditto. * config/alpha/xm-alphaosf.h: Renamed from xm-alpha.h. * config/alpha/alpha-osf1.mh (XM_FILE): Change from xm-alpha.h to xm-alphaosf.h. * config/alpha/alpha-osf2.mh: Ditto. * blockframe.c (find_pc_partial_function): Pass PC to SIGTRAMP_START and SIGTRAMP_END macros for the benefit of systems that detect sigtramp code via designated code sequences (as is the case for Linux/Alpha, for example). * config/i386/tm-i386bsd.h: Change SIGTRAMP_START and SIGTRAMP_END to ignore new PC argument. * config/m68k/tm-hp300bsd.h: Ditto. * config/vax/tm-vax.h: Ditto. * alpha-tdep.c (alpha_linux_sigtramp_offset): New function. (alpha_osf_skip_sigtramp_frame): Ditto. (push_sigtramp_desc): Ditto. (alpha_find_saved_regs): Use SIGCONTEXT_ADDR macro to extract sigcontext address from frame. (alpha_saved_pc_after_call): When in sigtramp, use alpha_frame_saved_pc() instead of read-register(). (after_prologue): When inside a dynamically generated sigtramp function, there is no prologue, so return address of first instruction. (alpha_in_prologue): Fix typo in comment. (find_proc_desc): Use macro DYNAMIC_SIGTRAMP_OFFSET to determine whether we're inside a dynamicaly generated sigtramp function. If so, create and push and appropriate procedure descriptor. (alpha_frame_chain): Use macro FRAME_PAST_SIGTRAMP_FRAME to obtain the frame past a sigtramp frame (if the current frame is indeed a sigtramp function). (init_extra_frame_info): Don't read next frame register off of stack-pointer when inside a dynamiccaly generated sigtramp. (alpha_pop_frame): Also unlink and destroy procedure descriptors created for dynamically generated sigtramp functions. * alpha-nat.c: When compiling under Linux, include <asm/reg.h> and <alpha/ptrace.h> instead of <machine/reg.h>
62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
/* Parameters for target machine Hewlett-Packard 9000/300, running bsd.
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Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Configuration file for HP9000/300 series machine running BSD,
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including Utah, Mt. Xinu or Berkeley variants. This is NOT for HP-UX.
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Problems to hpbsd-bugs@cs.utah.edu. */
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/* GCC is the only compiler used on this OS. So get this right even if
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the code which detects gcc2_compiled. is still broken. */
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#define BELIEVE_PCC_PROMOTION 1
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/* Define BPT_VECTOR if it is different than the default.
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This is the vector number used by traps to indicate a breakpoint.
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For hp300bsd the normal breakpoint vector is 0x2 (for debugging via
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ptrace); for remote kernel debugging the breakpoint vector is 0xf. */
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#define BPT_VECTOR 0x2
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#define REMOTE_BPT_VECTOR 0xf
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#define TARGET_NBPG 4096
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/* For 4.4 this would be 2, but it is OK for us to detect an area a
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bit bigger than necessary. This way the same gdb binary can target
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either 4.3 or 4.4. */
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#define TARGET_UPAGES 3
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/* On the HP300, sigtramp is in the u area. Gak! User struct is not
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mapped to the same virtual address in user/kernel address space
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(hence STACK_END_ADDR as opposed to KERNEL_U_ADDR). This tests
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for the whole u area, since we don't necessarily have hp300bsd
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include files around. */
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/* For 4.4, it is actually right 20 bytes *before* STACK_END_ADDR, so
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include that in the area we test for. */
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#define SIGTRAMP_START(pc) (STACK_END_ADDR - 20)
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#define SIGTRAMP_END(pc) (STACK_END_ADDR + TARGET_UPAGES * TARGET_NBPG)
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/* Address of end of stack space. */
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#define STACK_END_ADDR 0xfff00000
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#include "m68k/tm-m68k.h"
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