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From-SVN: r40924
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* frame.c (end_fde_sort): Remove extraneous erratic array test.
* frame.c (start_fde_sort): Don't malloc (0).
From-SVN: r34452
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2000-05-25 Andrew MacLeod <amacleod@cygnus.com>
Andrew Haley <aph@cygnus.com>
* except.c (func_eh_entry): Add emitted field.
(new_eh_region_entry): Set emitted field to 0;
(output_exception_table_entry): Only emit previously un-emitted data,
and send it to the eh_data section.
(output_exception_table): Break out common parts. Output
exception table for entire compilation unit to eh_data section.
(output_exception_table_data): Common parts of output_exception_table.
Send output to eh_data section.
(output_function_exception_table): Output exception table data for
a single function to eh_data section.
(free_exception_table): New external to free the table.
* except.h (free_exception_table): Add prototype.
(output_function_exception_table): Add prototype.
* final.c (final_end_function): Output function exception table
for IA64_UNWIND_INFO.
(final_scan_insn): Emit any unwind directives for an insn.
* frame-dwarf2.c: New file containing all DWARF 2 specific code
from frame.c.
* frame.c: Remove all DWARF 2 specific code.
* config/ia64/frame-ia64.c: New file.
(gthread_stuff): Make all gthread available with
IA64_UNWIND_INFO.
(dwarf_fde): Define an IA64 struct for dwarf_fde.
(__register_frame_info, __register_frame): Move to common area of file.
(__register_frame_info_table, __register_frame_table): Move to common i
area.
(__deregister_frame_info, __deregister_frame): Move to common area.
(__frame_init, find_fde): New versions for IA64_UNWIND_INFO.
(read_uleb128): New version for ia64.
(get_unwind_record): Read the next IA-64 unwind record.
(read_R_record): Read a region header record.
(process_a_b_reg_code): X record helper.
(read_X_record): Read an X format record.
(read_B_record): Read a B format record.
(P3_record_types): List of record types matching the P3 format.
(P7_record_types): List of record types matching the P7 format.
(P8_record_types): List of record types matching the P8 format.
(read_P_record): Read a P format record.
(init_ia64_reg_loc): Set default fields for a register.
(init_ia64_unwind_frame): Set defaults for all register records.
(execute_one_ia64_descriptor): Execute one descriptor record.
(rse_address_add): Calculate the position of a local reg in memory.
(normalize_reg_loc): Turn a location descriptor into a memory address.
(maybe_normalize_reg_loc): Only normalize a descriptor if it falls
within a specified PC offset range.
(get_real_reg_value): Given a register location, retrieve its value.
(set_real_reg_value): Change the value of a register location.
(copy_reg_value): Copy reg values, if needed.
(copy_saved_reg_state): Copy all registers that need to be copied.
(process_state_between): Normalize all frame register records that
fall within the specified PC range.
(frame_translate): Take a processed frame description, and turn
everything into addresses.
(build_ia64_frame_state ): Find and create frame state record for a PC.
(get_personality): Get the personality routine for a given frame.
(get_except_table): Get the exception table for a given frame.
(record_name): Unwind record names for debugging.
(print_record): Print and unwind record.
(print_all_records): Print an entire unwind image.
(__ia64_backtrace): Print a backtrace.
(ia64_backtrace_helper): New function.
(__register_frame_info_aux): New function.
* config/ia64/crtend.asm (__do_frame_setup_aux): New function.
* frame.h (enum unw_record_type): New unwind record types.
(struct unw_p_record, unw_b_record, unw_x_record) : New unwind records.
(struct unw_r_record, unwind_record): New unwind record structs.
(struct unwind_info_ptr): Unwind information layout.
(IA64_UNW_LOC_TYPE_*): Macros for different types for location
descriptors.
(struct ia64_reg_loc): Register location description.
(struct ia64_frame_state): Location of all registers in a frame.
(struct object): Add pc_base and fde_end for IA64_UNWIND_INFO.
* libgcc2.c (__ia64_personality_v1): Personality routine.
(__calc_caller_bsp): Calculate the bsp register for the caller's
frame.
(ia64_throw_helper): Figure out who to return to and set up the
registers.
(__throw): Throw routine.
* output.h (assemble_eh_align, assemble_eh_label): New functions
to generate EH info where we want it.
(assemble_eh_integer): New function.
* toplev.c (compile_file): Output module level exception table for
non-ia64 targets.
(main): Set exceptions_via_longjump and flag_new_exceptions based
on IA64_UNWIND_INFO too.
* varasm.c (assemble_eh_label): Generate a label via
ASM_OUTPUT_EH_LABEL if it has been specified.
(assemble_eh_align): Generate an alignment directive via
ASM_OUTPUT_EH_ALIGN if it has been specified.
(assemble_eh_label): Generate an integer value via
ASM_OUTPUT_EH_type if they have been specified.
* config/ia64/ia64.c (rtx_needs_barrier): Add flushrs.
(ia64_init_builtins): Add __builtin_ia64_bsp
and __builtin_ia64_flushrs.
(ia64_expand_builtin): Add IA64_BUILTIN_BSP and
IA64_BUILTIN_FLUSHRS.
* config/ia64/ia64.h (ia64_builtins): Add IA64_BUILTIN_BSP and
IA64_BUILTIN_FLUSHRS.
* config/ia64/ia64.md (flushrs): New insn to flush the register
stack. Add to unspec list.
* config/ia64/crtbegin.asm (frame_object): Change size.
(__do_frame_setup_aux): New function.
* config/ia64/crtend.asm: call __do_frame_setup_aux.
* config/ia64/t-ia64 (LIB2ADDEH): Add.
* Makefile.in (LIB2ADDEH): Add.
(LIB2ADD): Use LIB2ADDEH.
Co-Authored-By: Andrew Haley <aph@cygnus.com>
From-SVN: r34169
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From-SVN: r33916
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* config/rs6000/rs6000.h (DWARF_FRAME_RETURN_COLUMN): Define.
* config/alpha/alpha.h (DWARF_FRAME_RETURN_COLUMN): Define.
* config/sparc/sparc.h (DWARF_FRAME_RETURN_COLUMN): Define.
* frame.h (frame_state): Revert last change.
* frame.c (execute_cfa_insn): Just don't record the save of a CFA reg.
* libgcc2.c (throw_helper): Revert last change.
From-SVN: r32705
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* config/arm/arm.h (INCOMING_RETURN_ADDR_RTX): Define.
(DWARF_FRAME_RETURN_COLUMN): Define.
* config/arm/arm.c (emit_multi_reg_push): Return rtx. Attach
REG_FRAME_RELATED_EXPR note.
(emit_sfm): Likewise.
(arm_expand_prologue): Set RTX_FRAME_RELATED_P on everything.
* dwarf2out.c (reg_save): Handle saving a register to itself.
(dwarf2out_frame_debug_expr): Handle an intermediate cfa reg.
* except.c (eh_regs): Don't use the static chain reg if it's
callee-saved.
* frame.h (frame_state): Add cfa_saved field.
* frame.c (execute_cfa_insn): Set it.
* libgcc2.c (throw_helper): Don't adjust sp if it's restored in
the epilogue.
* function.c (ARG_POINTER_CFA_OFFSET): Default to FIRST_PARM_OFFSET.
Now takes a parm.
(instantiate_virtual_regs): Adjust.
* tm.texi: Adjust.
* config/m68k/m68k.h (ARG_POINTER_CFA_OFFSET): Don't define.
* config/ns32k/ns32k.h (ARG_POINTER_CFA_OFFSET): Don't define.
* config/sparc/sparc.h (ARG_POINTER_CFA_OFFSET): Take a parm.
* dwarf2out.c (reg_number): Refer to FIRST_PSEUDO_REGISTER.
(initial_return_save): Use DWARF_FRAME_REGNUM, not reg_number.
From-SVN: r32696
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* dwarf2.h (DW_CFA_GNU_negative_offset_extended): New constant.
* dwarf2out.c (dwarf_cfi_name): Print name of new constant.
(reg_save): Use DW_CFA_GNU_negative_offset_extended when needed.
(output_cfi): Handle output of DW_CFA_GNU_negative_offset_extended.
* frame.c (execute_cfa_insn): Handle
DW_CFA_GNU_negative_offset_extended.
From-SVN: r31858
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always executed at least once.
* frame.c (find_fde): Convert for loop to do-while so compiler
sees it's always executed at least once.
* libgcc2.c (BBINBUFSIZE): Kill.
(__bb_init_prg): Use fgets.
(__bb_exit_trace_func): Don't paste strings.
* unroll.c (unroll_loop): Initialize unroll_type, not
unroll_number, and tweak logic to match.
* i386.c (ix86_expand_int_movcc): Add explicit 'return 0' in
all failure paths.
(ix86_flags_dependant): Likewise. Disentangle control flow.
(ix86_sched_reorder): Break guts out to
ix86_sched_reorder_pentium and ix86_sched_reorder_ppro.
(ix86_sched_reorder_ppro): Initialize pair2 and insnp before
any possible use.
* i386.h (MACHINE_STATE_SAVE, MACHINE_STATE_RESTORE): Don't
use string concatenation. Don't save and restore esi.
* fixinc/Makefile.in (fixincl.sh): Don't depend on inclhack.def.
(machname.h): Remove script to separate file. Use two-step
sequence so target is not created if script fails.
* fixinc/gen-machname.h: New file. Handle case where no non-reserved
identifiers are defined.
* fixinc/fixlib.c (mn_get_regexps): Return a flag: if MN_NAME_PAT is
an empty string, machine_name doesn't need to do anything at
all.
(is_cxx_header): Add more cases to regexp.
* fixinc/fixlib.h: Update prototype.
* fixinc/fixtests.c, fixinc/fixfixes.c: Update callers of
mn_get_regexps.
* fixinc/fixincl.c: Define NO_BOGOSITY.
* fixinc/inclhack.def (no_double_slash, else_endif_label): Ifdef out.
(hp_sysfile): Add missing comma.
(math_exception): Put the wrapper ifdefs at the beginning and
the end of the file.
* fixinc/fixincl.x, fixinc/inclhack.sh: Regenerate.
From-SVN: r31744
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* tsystem.h: New file.
* Makefile.in (libgcc2.a, stmp-multilib, crtbegin.o, crtend.o,
s-crtS): Depend on tsystem.h.
* crtstuff.c: Include tsystem.h.
* frame.c: Likewise.
* libgcc2.c: Likewise.
From-SVN: r31741
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* crtstuff.c: If !inhibit_libc, include stdlib.h/unistd.h.
Otherwise provide a declaration for atexit.
(init_dummy): Make sure dummy call to atexit is nevertheless
called with correct number of args.
* frame.c: Update comments referring to other files.
* libgcc2.c: Likewise.
From-SVN: r31124
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allocated.
* frame.c (start_fde_sort): Only allocate erratic array, if
linear one was allocated. Return allocated flag.
(fde_insert): Only insert, if there's a valid array.
(fde_end_sort): Split, sort and merge if linear and erratic
arrays exist, else just sort linear one.
(search_fdes): New function. Linear search through original fde
structure.
(frame_init): Permit multiple initializations. Cope with
memory shortages.
(find_fde): Fallback on linear search, if failed to sort array.
(__deregister_frame_info): Only free sorted array, if we
allocated it.
From-SVN: r30799
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From-SVN: r30768
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From-SVN: r29829
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{ht}config.h & tm.h just before the config/...
* configure.in (host_xm_file, build_xm_file, xm_file, tm_file):
Arrange to include gansidecl.h in {ht}config.h & tm.h just
before the config/ directory headers.
(tm_file_list, host_xm_file_list, build_xm_file_list): Handle
gansidecl.h in the list of dependencies.
* Makefile.in (RTL_BASE_H): Don't depend on gansidecl.h.
(TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
Likewise.
* cccp.c: Don't include gansidecl.h.
* cexp.y: Likewise.
* collect2.c: Likewise.
* config/c4x/c4x.c: Likewise.
* config/v850/v850.h: Likewise.
* cppalloc.c: Likewise.
* cpperror.c: Likewise.
* cppexp.c: Likewise.
* cppfiles.c: Likewise.
* cpphash.c: Likewise.
* cpplib.c: Likewise.
* cppmain.c: Likewise.
* cppulp.c: Likewise.
* demangle.h: Likewise.
* doprint.c: Likewise.
* dyn-string.c: Likewise.
* eh-common.h: Likewise.
* fix-header.c: Likewise.
* frame.c: Likewise.
* gcc.c: Likewise.
* gcov.c: Likewise.
* gen-protos.c: Likewise.
* gencheck.c: Likewise.
* halfpic.h: Likewise.
* hash.c: Likewise.
* machmode.h: Likewise.
* mbchar.c: Likewise.
* prefix.c: Likewise.
* protoize.c: Likewise.
* recog.h: Likewise.
* rtl.h: Likewise.
* scan-decls.c: Likewise.
* tree.h: Likewise.
* varray.h: Likewise.
From-SVN: r23558
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* frame.c: Somewhat explain `FDE'.
Suggested by Brendan Kehoe
From-SVN: r23243
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* gthr.h: Document __GTHREAD_MUTEX_INIT_FUNCTION.
* frame.c (init_object_mutex): New function.
(init_object_mutex_once): Likewise.
(find_fde): Call it.
(__register_frame_info): Likewise.
(__register_frame_info_table): Likewise.
(__deregister_frame_info): Likewise.
From-SVN: r22023
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From-SVN: r19601
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* frame.c, libgcc2.c (stdlib.h, unistd.h): Don't include when
inhibit_libc is defined.
From-SVN: r19390
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* frame.c (heapsort): Rename to frame_heapsort.
From-SVN: r19351
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* frame.c: Include stdlib.h and unistd.h to possibly get various
function prototypes. The fixproto script guarantees these header
files exist on the target system.
* libgcc2.c: Likewise.
* gthr-single.h (__gthread_mutex_lock, __gthread_mutex_trylock,
__gthread_mutex_unlock): Add __attribute__ ((__unused__)) to the
function parameters.
* libgcc2.c (__udiv_w_sdiv): Likewise.
From-SVN: r19261
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* frame.c (start_fde_sort, fde_split, heapsort, fde_merge,
end_fde_sort): New functions for fast sorting of an FDE array.
(fde_insert): Simplified.
(add_fdes): Change argument list.
(frame_init): Use the new functions.
From-SVN: r18345
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From-SVN: r17964
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From-SVN: r17382
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* Makefile.in (GTHREAD_FLAGS): New var.
(LIBGCC2_CFLAGS): Added $(GTHREAD_FLAGS).
(distclean): Remove gthr-default.h.
* configure.in: Accept dce as a thread package.
Check for thread.h and pthread.h.
Link gthr-default.h to appropriate thread file and set
gthread_flags.
(hppa1.1-*-hpux10*): If --enable-threads, use dce threads and
include multilib definitions from pa/t-dce-thr.
(sparc-*-solaris2*): Enable threads by default, if thread.h or
pthread.h is found, preferring posix threads over solaris ones.
* config/pa/t-dce-thr: New file.
* config/pa/t-pa: Removed multilibs.
* config/sparc/t-sol2: Ditto.
* gthr.h: New file.
* gthr-single.h: New file.
* gthr-posix.h: New file.
* gthr-solaris.h: New file.
* gthr-dce.h: New file.
* libgcc-thr.h: Removed.
* objc/thr-dce.c: New file copied from thr-decosf1.c.
* frame.c: Include gthr.h instead of libgcc-thr.h.
* libgcc2.c: Include gthr.h instead of libgcc-thr.h.
(eh_context_initialize): If __gthread_once fails, use static eh
context.
(eh_context_free): Call __gthread_key_dtor.
From-SVN: r17235
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* frame.h (__register_frame, __register_frame_table,
__deregister_frame): New.
* frame.c (__register_frame, __register_frame_table,
__deregister_frame): New.
* frame.c (__deregister_frame_info): Return void *.
* frame.h (__deregister_frame_info): Ditto.
* collect2.c (__deregister_frame_info): Ditto.
From-SVN: r17113
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Mirror sched.c change into haifa-sched.c
From-SVN: r17097
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Thu Dec 11 20:42:18 1997 Teemu Torma <tot@trema.com>
Thread-safe EH support for pthreads, DCE threads and Solaris threads.
* integrate.c (expand_inline_function): If the inline fn uses eh
context, make sure that the current fn has one.
* toplev.c (rest_of_compilation): Call emit_eh_context.
* except.c (use_eh_context): New fn.
(get_eh_context_once): New fn.
(call_get_eh_context): New fn.
(emit_eh_context): New fn.
(get_eh_context): Call either get_eh_context_once or
call_get_eh_context, depending on what we have.
(get_dynamic_handler_chain): Call get_eh_context_once.
* except.h: Prototypes for fns above.
* optabs.c (get_eh_context_libfunc): Removed.
(init_optabs): Don't initialize it.
* expr.h (get_eh_context_libfunc): Removed.
* rtl.h, rtl.c: New reg_note REG_EH_CONTEXT.
* config/pa/pa.h (CPP_SPEC): Support for -threads.
* config/pa/pa-hpux10.h (LIB_SPEC): Ditto.
* config/pa/t-pa (MULTILIB_OPTIONS, MULTILIB_DIRNAMES):
New multilib for -threads.
* config/sparc/t-sol2: Added multilibs for -threads and
made -pthreads alias to it.
* config/sparc/sol2.h (CPP_SPEC, LIB_SPEC):
Added -threads and -pthreads options.
* libgcc-thr.h: New file.
* libgcc2.c: (__get_cpp_eh_context): Removed.
(struct cpp_eh_context): Removed.
(struct eh_context): Replaced cpp_eh_context with generic language
specific pointer.
(__get_eh_info): New function.
(__throw): Check eh_context::info.
(__sjthrow): Ditto.
* libgcc2.c: Include libgcc-thr.h.
(new_eh_context, __get_eh_context,
eh_pthread_initialize, eh_context_initialize, eh_context_static,
eh_context_specific, eh_context_free): New functions.
(get_eh_context, eh_context_key): New variables.
(__sjthrow, __sjpopnthrow, __eh_pcnthrow, __throw): Use
get_eh_context to get the context.
(longjmp): Move the declaration inside
#ifdef DONT_USE_BUILTIN_SETJMP.
* frame.c: Include libgcc-thr.h.
(object_mutex): Mutex to protect the object list.
(find_fde, __register_frame, __register_frame_table,
__deregister_frame): Hold the lock while accessing objects.
* except.h (get_eh_context): Declare.
* except.c (current_function_ehc): Define.
(current_function_dhc, current_function_dcc): Removed.
(get_eh_context): New function.
(get_dynamic_handler_chain): Use get_eh_context.
(get_saved_pc_ref): Ditto.
(get_dynamic_cleanup_chain): Removed references to
current_function_dcc.
(save_eh_status, restore_eh_status): Save and restore
current_function_ehc instead.
* optabs.c (get_eh_context_libfunc): New variable.
(init_optabs): Initialize it.
* expr.h: Declare get_eh_context_libfunc.
* function.h (struct function): Replaced dhc and dcc with ehc.
* except.c (get_saved_pc_ref): New functions.
(eh_saved_pc_rtx, eh_saved_pc): Deleted.
(expand_internal_throw_indirect): Use get_saved_pc_ref() instead
of eh_saved_pc.
(end_eh_unwinder): Likewise.
(init_eh): Remove initialization of eh_saved_pc.
* optabs.c (get_saved_pc_libfunc): New variable.
(init_optabs): Initialize it.
* expr.h: Declare get_saved_pc_libfunc.
* except.h (eh_saved_pc_rtx): Deleted.
(get_saved_pc_ref): Declared.
From Scott Snyder <snyder@d0sgif.fnal.gov>:
* libgcc2.c (__get_saved_pc): New.
(__eh_type, __eh_pc): Deleted.
(__eh_pcnthrow): Use __get_saved_pc() instead of __eh_pc.
(__get_dynamic_handler_chain): Move __dynamic_handler_chain inside
this fcn.
cp/:
Thu Dec 11 20:43:33 1997 Teemu Torma <tot@trema.com>
* decl.c (ptr_ptr_type_node): Define.
(init_decl_processing): Initialize it.
* cp-tree.h: Declare it.
* exception.cc (__cp_exception_info): Use __get_eh_info.
(__cp_push_exception): Ditto.
(__cp_pop_exception): Ditto.
From Scott Snyder <snyder@d0sgif.fnal.gov>:
* except.c (expand_builtin_throw): Use get_saved_pc_ref instead of
saved_pc.
(init_exception_processing): Removed saved_pc initialization.
From-SVN: r17052
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From-SVN: r16987
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FDEs.
* frame.c (add_fdes, count_fdes): Go back to checking pc_begin for
linked once FDEs.
From-SVN: r16359
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From-SVN: r16278
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PC-relative offset.
* dwarf2out.c (output_call_frame_info): The CIE pointer is now a 32
bit PC-relative offset. The exception range table pointer is now in
the CIE.
* frame.c (dwarf_cie, dwarf_fde): Rename CIE_pointer to CIE_delta.
(count_fdes, add_fdes, get_cie): Adjust.
(cie_info, extract_cie_info, __frame_state_for): Adjust eh_ptr uses.
From H.J. Lu:
* frame.c (count_fdes, add_fdes): Skip linked once FDE entries.
From-SVN: r16192
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value is strictly bigger than the...
* frame.c (__frame_state_for): Execute the FDE insns until the
current pc value is strictly bigger than the target pc value.
From-SVN: r15863
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* frame.c: Remove last change.
* dwarf2.h: Remove last change.
* tree.h: Add declarations of DWARF2 unwind info support
functions.
As requested by Jason.
From-SVN: r15751
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* frame.c: Include gansidecl.h for PROTO.
* dwarf2out.c: Move inclusion of dwarf2.h down so that PROTO is
defined. Don't declare dwarf2out_cfi_label here.
* dwarf2.h: Add declarations of DWARF2 unwind info support
functions.
* m68k.c: Include dwarf2.h.
(output_function_prologue): Add dwarf2 support.
* m68k.h (INCOMING_RETURN_ADDR_RTX, DWARF_FRAME_REGNUM): New macros.
(INCOMING_FRAME_SP_OFFSET): Likewise.
Update m68k patch from Andreas.
From-SVN: r15740
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From-SVN: r15601
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From-SVN: r15255
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