* gcc.patch: Update for a different GCC (G++) bug.
* main.c (print_gdb_version): Update copyright year to 1993. * nm-hp300bsd.h: Decide whether this is BSD 4.3 or 4.4, conditionalize this file on it. FIXME, right way is to split these into two config files. (ATTACH_DETACH): Define for BSD 4.4 (PTRACE_ARG_TYPE): caddr_t for BSD 4.4, unset for 4.3. (U_REGS_OFFSET): Revise for 4.4. (REGISTER_U_ADDR): Separate for 4.4, but it doesn't work yet. * xm-hp300bsd.h: Move definitions of UINT_MAX, INT_MAX, INT_MIN, LONG_MAX into this file to avoid cpp "redefinition" warnings.
This commit is contained in:
John Gilmore
parent
b9163d1aaa
commit
5e3d0ab075
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@ -4,6 +4,20 @@ Thu Feb 18 22:44:40 1993 Stu Grossman (grossman@cygnus.com)
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* am29k-tdep.c: More minor nits with arg types for
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supply_register, NULL vs. 0, read_register_gen, & reginv_com.
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Thu Feb 18 22:38:03 1993 John Gilmore (gnu@cygnus.com)
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* gcc.patch: Update for a different GCC (G++) bug.
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* main.c (print_gdb_version): Update copyright year to 1993.
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* nm-hp300bsd.h: Decide whether this is BSD 4.3 or 4.4,
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conditionalize this file on it. FIXME, right way is to split
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these into two config files.
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(ATTACH_DETACH): Define for BSD 4.4
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(PTRACE_ARG_TYPE): caddr_t for BSD 4.4, unset for 4.3.
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(U_REGS_OFFSET): Revise for 4.4.
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(REGISTER_U_ADDR): Separate for 4.4, but it doesn't work yet.
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* xm-hp300bsd.h: Move definitions of UINT_MAX, INT_MAX, INT_MIN,
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LONG_MAX into this file to avoid cpp "redefinition" warnings.
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Thu Feb 18 16:13:28 1993 K. Richard Pixley (rich@rtl.cygnus.com)
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* nm-hp300bsd.h (PTRACE_ARG3_TYPE): FSF's hp300's have int* not
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125
gdb/gcc.patch
125
gdb/gcc.patch
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@ -1,63 +1,72 @@
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Recent versions of gcc have had a bug in how they emit debugging
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information for C++ methods (when using dbx-style stabs).
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This patch should fix the problem. Fix you can't fix gcc,
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you can alternatively define GCC_MANGLE_BUG when compling gdb/symtab.c.
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In the 2.3.2 release of gcc/g++, how the compiler handles resolving
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multiple inheritance lattices was reworked to properly discover
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ambiguities. We recently found an example which causes this new
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algorithm to fail in a very subtle way. For the time being, this
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patch will make the compiler use the old algorithm, which works for
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the failing case we've found. Note it will revert the compiler's
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ability to properly deduce MI ambiguities in many cases (to its state
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in 2.2.2 and 2.3.1). This bug will be fixed in the next gcc/g++
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release.
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===================================================================
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RCS file: /rel/cvsfiles/devo/gcc/dbxout.c,v
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retrieving revision 1.53
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diff -c -r1.53 dbxout.c
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*** 1.53 1992/07/05 09:50:22
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--- dbxout.c 1992/07/09 07:00:33
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Brendan Kehoe (brendan@cygnus.com)
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*** cp-search.c.~1~ Thu Feb 18 18:03:24 1993
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--- cp-search.c Thu Feb 18 18:03:27 1993
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***************
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*** 683,688 ****
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--- 683,689 ----
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tree type_encoding;
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register tree fndecl;
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register tree last;
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+ char formatted_type_identifier_length[16];
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register int type_identifier_length;
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*** 2389,2392 ****
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--- 2389,2393 ----
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if ((*qfn)(base_binfo))
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{
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+ #if 0
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if (fn == dfs_init_vbase_pointers)
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{
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***************
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*** 2464,2467 ****
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--- 2465,2469 ----
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saw_first_vbase = save_saw_first_vbase;
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} else
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+ #endif
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dfs_walk (base_binfo, fn, qfn);
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}
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*************** dfs_init_vbase_pointers (binfo)
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*** 2658,2661 ****
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--- 2660,2664 ----
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return;
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if (methods == NULL_TREE)
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***************
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*** 711,716 ****
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--- 712,719 ----
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+ #if 0
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this_vbase_ptr = vbase_decl_ptr_intermediate;
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type_identifier_length = IDENTIFIER_LENGTH (type_encoding);
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*************** dfs_init_vbase_pointers (binfo)
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*** 2662,2668 ****
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if (TYPE_POINTER_TO (type) != TREE_TYPE (this_vbase_ptr))
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my_friendly_abort (125);
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+ sprintf(formatted_type_identifier_length, "%d", type_identifier_length);
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+
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if (TREE_CODE (methods) == FUNCTION_DECL)
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fndecl = methods;
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else if (TREE_VEC_ELT (methods, 0) != NULL_TREE)
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***************
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*** 754,762 ****
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--- 757,769 ----
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if (debug_name[0] == '_' && debug_name[1] == '_')
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{
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char *method_name = debug_name + 2;
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+ char *length_ptr = formatted_type_identifier_length;
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/* Get past const and volatile qualifiers. */
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while (*method_name == 'C' || *method_name == 'V')
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method_name++;
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+ /* Skip digits for length of type_encoding. */
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+ while (*method_name == *length_ptr && *length_ptr)
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+ length_ptr++, method_name++;
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if (! strncmp (method_name,
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IDENTIFIER_POINTER (type_encoding),
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type_identifier_length))
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***************
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*** 768,775 ****
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--- 775,786 ----
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else if (debug_name[0] == '_' && debug_name[1] == '_')
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{
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char *ctor_name = debug_name + 2;
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+ char *length_ptr = formatted_type_identifier_length;
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while (*ctor_name == 'C' || *ctor_name == 'V')
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ctor_name++;
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+ /* Skip digits for length of type_encoding. */
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+ while (*ctor_name == *length_ptr && *length_ptr)
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+ length_ptr++, ctor_name++;
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if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name,
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type_identifier_length))
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debug_name = ctor_name + type_identifier_length;
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- #if 0
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distance = get_base_distance (type, TREE_TYPE (vbase_decl), 0, &path);
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if (distance == -2)
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{
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--- 2665,2672 ----
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if (TYPE_POINTER_TO (type) != TREE_TYPE (this_vbase_ptr))
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my_friendly_abort (125);
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+ #endif
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distance = get_base_distance (type, TREE_TYPE (vbase_decl), 0, &path);
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+ #if 0
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if (distance == -2)
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{
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*************** dfs_init_vbase_pointers (binfo)
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*** 2669,2672 ****
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--- 2673,2677 ----
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error ("inheritance lattice too complex below");
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}
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+ #endif
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while (path)
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{
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*************** dfs_init_vbase_pointers (binfo)
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*** 2682,2685 ****
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--- 2687,2691 ----
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this_vbase_ptr = convert_pointer_to (type, vbase_decl_ptr);
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+ #if 0
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/* This happens when it is ambiguous. */
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if (this_vbase_ptr == error_mark_node)
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@ -17,6 +17,60 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This is a hack. This is only a hack. Were this a common source file,
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rather than a config file specific to BSD on HP 68k's, you would have
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been instructed to clean this up. As it is, clean it up if FSF's
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HP's-running-ancient-BSD ever go away. */
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#include <errno.h>
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#ifdef EPROCUNAVAIL
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/* BSD 4.4 alpha or better */
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/* We can attach to processes using ptrace. */
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#define ATTACH_DETACH
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#define PTRACE_ATTACH 10
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#define PTRACE_DETACH 11
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/* The third argument of ptrace is declared as this type. */
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#define PTRACE_ARG3_TYPE caddr_t
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/* U_REGS_OFFSET is the offset of the registers within the u area for
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ptrace purposes. */
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#define U_REGS_OFFSET \
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ptrace (PT_READ_U, inferior_pid, \
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(PTRACE_ARG3_TYPE) \
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(offsetof (struct user, u_kproc.kp_proc.p_md.md_regs)), 0) \
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- USRSTACK
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/* This is a piece of magic that is given a register number REGNO
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and as BLOCKEND the address in the system of the end of the user structure
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and stores in ADDR the address in the kernel or core dump
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of that register. */
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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{ \
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if (regno < PS_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_regs[regno]; \
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else if (regno == PS_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_stackadj; \
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else if (regno == PC_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_pc; \
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else if (regno < FPC_REGNUM) \
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addr = (int) \
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&((struct user *)0)->u_pcb.pcb_fpregs.fpf_regs[((regno)-FP0_REGNUM)*3];\
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else if (regno == FPC_REGNUM) \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpcr; \
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else if (regno == FPS_REGNUM) \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpsr; \
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else \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \
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}
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#else
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/* THIS IS BSD 4.3 or something like it. */
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/* This is a piece of magic that is given a register number REGNO
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and as BLOCKEND the address in the system of the end of the user structure
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and stores in ADDR the address in the kernel or core dump
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@ -40,24 +94,4 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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else \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \
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}
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/* This is a hack. This is only a hack. Were this a common source file,
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rather than a config file specific to BSD on HP 68k's, you would have
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been instructed to clean this up. As it is, clean it up if FSF's
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HP's-running-ancient-BSD ever go away. */
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#include <errno.h>
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#ifdef EPROCUNAVAIL
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/* BSD 4.4 alpha or better */
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/* We can attach to processes using ptrace. */
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#define ATTACH_DETACH
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#define PTRACE_ATTACH 10
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#define PTRACE_DETACH 11
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/* The third argument of ptrace is declared as this type. */
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#define PTRACE_ARG3_TYPE caddr_t
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#endif
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@ -25,10 +25,12 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define HOST_BYTE_ORDER BIG_ENDIAN
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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/* Avoid "INT_MIN redefined" preprocessor warnings -- by defining them here,
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exactly the same as in the system <limits.h> file. */
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#define UINT_MAX 4294967295 /* max value for an unsigned int */
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#define INT_MAX 2147483647 /* max value for an int */
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#define INT_MIN (-2147483647-1) /* min value for an int */
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#define LONG_MAX 2147483647 /* max value for a long */
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/* Get rid of any system-imposed stack limit if possible. */
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