diff options
Diffstat (limited to 'gcc/config/alpha')
| -rw-r--r-- | gcc/config/alpha/alpha-protos.h | 1 | ||||
| -rw-r--r-- | gcc/config/alpha/alpha.c | 83 | ||||
| -rw-r--r-- | gcc/config/alpha/alpha.h | 43 | ||||
| -rw-r--r-- | gcc/config/alpha/alpha.md | 65 | ||||
| -rw-r--r-- | gcc/config/alpha/elf.h | 35 | ||||
| -rw-r--r-- | gcc/config/alpha/freebsd.h | 4 | ||||
| -rw-r--r-- | gcc/config/alpha/linux.h | 60 | ||||
| -rw-r--r-- | gcc/config/alpha/osf.h | 42 | ||||
| -rw-r--r-- | gcc/config/alpha/osf5.h | 34 | ||||
| -rw-r--r-- | gcc/config/alpha/t-interix | 5 | ||||
| -rw-r--r-- | gcc/config/alpha/t-osf4 | 10 | ||||
| -rw-r--r-- | gcc/config/alpha/xm-alpha.h | 5 |
12 files changed, 277 insertions, 110 deletions
diff --git a/gcc/config/alpha/alpha-protos.h b/gcc/config/alpha/alpha-protos.h index c12b92d9c79..06ecfa3848b 100644 --- a/gcc/config/alpha/alpha-protos.h +++ b/gcc/config/alpha/alpha-protos.h @@ -100,6 +100,7 @@ extern int alpha_expand_block_move PARAMS ((rtx [])); extern int alpha_expand_block_clear PARAMS ((rtx [])); extern int alpha_adjust_cost PARAMS ((rtx, rtx, rtx, int)); extern rtx alpha_return_addr PARAMS ((int, rtx)); +extern rtx alpha_gp_save_rtx PARAMS ((void)); extern void print_operand PARAMS ((FILE *, rtx, int)); extern void print_operand_address PARAMS ((FILE *, rtx)); extern void alpha_initialize_trampoline PARAMS ((rtx, rtx, rtx, int, int, int)); diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 25d7d3b503f..b2dc931dc88 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -1,6 +1,6 @@ /* Subroutines used for code generation on the DEC Alpha. Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000 Free Software Foundation, Inc. + 2000, 2001 Free Software Foundation, Inc. Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) This file is part of GNU CC. @@ -29,7 +29,6 @@ Boston, MA 02111-1307, USA. */ #include "real.h" #include "insn-config.h" #include "conditions.h" -#include "insn-flags.h" #include "output.h" #include "insn-attr.h" #include "flags.h" @@ -343,6 +342,19 @@ override_options () if (!g_switch_set) g_switch_value = 8; + /* Align labels and loops for optimal branching. */ + /* ??? Kludge these by not doing anything if we don't optimize and also if + we are writing ECOFF symbols to work around a bug in DEC's assembler. */ + if (optimize > 0 && write_symbols != SDB_DEBUG) + { + if (align_loops <= 0) + align_loops = 16; + if (align_jumps <= 0) + align_jumps = 16; + } + if (align_functions <= 0) + align_functions = 16; + /* Acquire a unique set number for our register saves and restores. */ alpha_sr_alias_set = new_alias_set (); @@ -3665,8 +3677,8 @@ alpha_mark_machine_status (p) if (machine) { - ggc_mark_rtx (machine->eh_epilogue_sp_ofs); ggc_mark_rtx (machine->ra_rtx); + ggc_mark_rtx (machine->gp_save_rtx); } } @@ -3708,6 +3720,29 @@ alpha_return_addr (count, frame) return reg; } +/* Return or create a pseudo containing the gp value for the current + function. Needed only if TARGET_LD_BUGGY_LDGP. */ + +rtx +alpha_gp_save_rtx () +{ + rtx init, reg; + + reg = cfun->machine->gp_save_rtx; + if (reg == NULL) + { + reg = gen_reg_rtx (DImode); + cfun->machine->gp_save_rtx = reg; + init = gen_rtx_SET (VOIDmode, reg, gen_rtx_REG (DImode, 29)); + + push_topmost_sequence (); + emit_insn_after (init, get_insns ()); + pop_topmost_sequence (); + } + + return reg; +} + static int alpha_ra_ever_killed () { @@ -4317,6 +4352,7 @@ alpha_va_arg (valist, type) tree t; tree offset_field, base_field, addr_tree, addend; tree wide_type, wide_ofs; + int indirect = 0; if (TARGET_OPEN_VMS) return std_expand_builtin_va_arg (valist, type); @@ -4335,7 +4371,13 @@ alpha_va_arg (valist, type) wide_ofs = save_expr (build1 (CONVERT_EXPR, wide_type, offset_field)); addend = wide_ofs; - if (FLOAT_TYPE_P (type)) + + if (TYPE_MODE (type) == TFmode || TYPE_MODE (type) == TCmode) + { + indirect = 1; + tsize = UNITS_PER_WORD; + } + else if (FLOAT_TYPE_P (type)) { tree fpaddend, cond; @@ -4361,6 +4403,12 @@ alpha_va_arg (valist, type) TREE_SIDE_EFFECTS (t) = 1; expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); + if (indirect) + { + addr = force_reg (Pmode, addr); + addr = gen_rtx_MEM (Pmode, addr); + } + return addr; } @@ -4417,6 +4465,18 @@ alpha_sa_mask (imaskP, fmaskP) fmask |= (1L << (i - 32)); } + /* We need to restore these for the handler. */ + if (current_function_calls_eh_return) + { + for (i = 0; ; ++i) + { + unsigned regno = EH_RETURN_DATA_REGNO (i); + if (regno == INVALID_REGNUM) + break; + imask |= 1L << regno; + } + } + if (imask || fmask || alpha_ra_ever_killed ()) imask |= (1L << REG_RA); } @@ -5113,7 +5173,11 @@ alpha_expand_epilogue () fp_offset = 0; sa_reg = stack_pointer_rtx; - eh_ofs = cfun->machine->eh_epilogue_sp_ofs; + if (current_function_calls_eh_return) + eh_ofs = EH_RETURN_STACKADJ_RTX; + else + eh_ofs = NULL_RTX; + if (sa_size) { /* If we have a frame pointer, restore SP from it. */ @@ -5141,12 +5205,11 @@ alpha_expand_epilogue () /* Restore registers in order, excepting a true frame pointer. */ + mem = gen_rtx_MEM (DImode, plus_constant (sa_reg, reg_offset)); if (! eh_ofs) - { - mem = gen_rtx_MEM (DImode, plus_constant(sa_reg, reg_offset)); - MEM_ALIAS_SET (mem) = alpha_sr_alias_set; - FRP (emit_move_insn (gen_rtx_REG (DImode, REG_RA), mem)); - } + MEM_ALIAS_SET (mem) = alpha_sr_alias_set; + FRP (emit_move_insn (gen_rtx_REG (DImode, REG_RA), mem)); + reg_offset += 8; imask &= ~(1L << REG_RA); diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index dc2a1ec4439..ce644f1747c 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -186,6 +186,9 @@ extern enum alpha_fp_trap_mode alpha_fptm; #ifndef TARGET_PROFILING_NEEDS_GP #define TARGET_PROFILING_NEEDS_GP 0 #endif +#ifndef TARGET_LD_BUGGY_LDGP +#define TARGET_LD_BUGGY_LDGP 0 +#endif /* Macro to define tables used to set the flags. This is a list in braces of pairs in braces, @@ -494,7 +497,7 @@ extern const char *alpha_mlat_string; /* For -mmemory-latency= */ #define STACK_BOUNDARY 64 /* Allocation boundary (in *bits*) for the code of a function. */ -#define FUNCTION_BOUNDARY 128 +#define FUNCTION_BOUNDARY 32 /* Alignment of field after `int : 0' in a structure. */ #define EMPTY_FIELD_BOUNDARY 64 @@ -505,22 +508,6 @@ extern const char *alpha_mlat_string; /* For -mmemory-latency= */ /* A bitfield declared as `int' forces `int' alignment for the struct. */ #define PCC_BITFIELD_TYPE_MATTERS 1 -/* Align loop starts for optimal branching. - - ??? Kludge this and the next macro for the moment by not doing anything if - we don't optimize and also if we are writing ECOFF symbols to work around - a bug in DEC's assembler. */ - -#define LOOP_ALIGN(LABEL) \ - (optimize > 0 && write_symbols != SDB_DEBUG ? 4 : 0) - -/* This is how to align an instruction for optimal branching. On - Alpha we'll get better performance by aligning on an octaword - boundary. */ - -#define LABEL_ALIGN_AFTER_BARRIER(FILE) \ - (optimize > 0 && write_symbols != SDB_DEBUG ? 4 : 0) - /* No data type wants to be aligned rounder than this. */ #define BIGGEST_ALIGNMENT 128 @@ -1213,11 +1200,11 @@ extern struct alpha_compare alpha_compare; struct machine_function { - /* An offset to apply to the stack pointer when unwinding from EH. */ - struct rtx_def *eh_epilogue_sp_ofs; - /* If non-null, this rtx holds the return address for the function. */ struct rtx_def *ra_rtx; + + /* If non-null, this rtx holds a saved copy of the GP for the function. */ + struct rtx_def *gp_save_rtx; }; /* Make (or fake) .linkage entry for function call. @@ -1342,6 +1329,13 @@ do { \ /* Before the prologue, RA lives in $26. */ #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, 26) #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (26) + +/* Describe how we implement __builtin_eh_return. */ +#define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 16 : INVALID_REGNUM) +#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 28) +#define EH_RETURN_HANDLER_RTX \ + gen_rtx_MEM (Pmode, plus_constant (stack_pointer_rtx, \ + current_function_outgoing_args_size)) /* Addressing modes, and classification of registers for them. */ @@ -1926,15 +1920,6 @@ do { \ /* Control the assembler format that we output. */ -/* We don't emit these labels, so as to avoid getting linker errors about - missing exception handling info. If we emit a gcc_compiled. label into - text, and the file has no code, then the DEC assembler gives us a zero - sized text section with no associated exception handling info. The - DEC linker sees this text section, and gives a warning saying that - the exception handling info is missing. */ -#define ASM_IDENTIFY_GCC(x) -#define ASM_IDENTIFY_LANGUAGE(x) - /* Output to assembler file text saying following lines may contain character constants, extra white space, comments, etc. */ diff --git a/gcc/config/alpha/alpha.md b/gcc/config/alpha/alpha.md index 9961617a3dc..cafee4453e7 100644 --- a/gcc/config/alpha/alpha.md +++ b/gcc/config/alpha/alpha.md @@ -4276,6 +4276,20 @@ } }") +(define_insn "*call_osf_1_noreturn" + [(call (mem:DI (match_operand:DI 0 "call_operand" "c,R,i")) + (match_operand 1 "" "")) + (clobber (reg:DI 27)) + (clobber (reg:DI 26))] + "! TARGET_WINDOWS_NT && ! TARGET_OPEN_VMS + && find_reg_note (insn, REG_NORETURN, NULL_RTX)" + "@ + jsr $26,($27),0 + bsr $26,$%0..ng + jsr $26,%0" + [(set_attr "type" "jsr") + (set_attr "length" "*,*,8")]) + (define_insn "*call_osf_1" [(call (mem:DI (match_operand:DI 0 "call_operand" "c,R,i")) (match_operand 1 "" "")) @@ -4659,7 +4673,7 @@ " { alpha_split_tfmode_pair (operands); - if (rtx_equal_p (operands[0], operands[3])) + if (reg_overlap_mentioned_p (operands[0], operands[3])) { rtx tmp; tmp = operands[0], operands[0] = operands[1], operands[1] = tmp; @@ -4717,7 +4731,7 @@ st%, %R1,%0" [(set_attr "type" "ilog,iadd,iadd,ild,ist,fcpys,fld,fst")]) -(define_insn "*movsf_fix" +(define_insn "*movsi_fix" [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,r,r,m,*f,*f,m,r,*f") (match_operand:SI 1 "input_operand" "rJ,K,L,m,rJ,*fJ,m,*f,*f,r"))] "! TARGET_WINDOWS_NT && ! TARGET_OPEN_VMS && TARGET_FIX @@ -5886,22 +5900,6 @@ DONE; }") -(define_expand "eh_epilogue" - [(use (match_operand:DI 0 "register_operand" "r")) - (use (match_operand:DI 1 "register_operand" "r")) - (use (match_operand:DI 2 "register_operand" "r"))] - "! TARGET_OPEN_VMS" - " -{ - cfun->machine->eh_epilogue_sp_ofs = operands[1]; - if (GET_CODE (operands[2]) != REG || REGNO (operands[2]) != 26) - { - rtx ra = gen_rtx_REG (Pmode, 26); - emit_move_insn (ra, operands[2]); - operands[2] = ra; - } -}") - ;; In creating a large stack frame, NT _must_ use ldah+lda to load ;; the frame size into a register. We use this pattern to ensure ;; we get lda instead of addq. @@ -5961,13 +5959,36 @@ [(set_attr "length" "12") (set_attr "type" "multi")]) -(define_insn "exception_receiver" - [(unspec_volatile [(const_int 0)] 7)] +(define_expand "exception_receiver" + [(unspec_volatile [(match_dup 0)] 7)] "! TARGET_OPEN_VMS && ! TARGET_WINDOWS_NT" - "br $29,$LSJ%=\\n$LSJ%=:\;ldgp $29,0($29)" - [(set_attr "length" "12") + " +{ + if (TARGET_LD_BUGGY_LDGP) + operands[0] = alpha_gp_save_rtx (); + else + operands[0] = const0_rtx; +}") + +(define_insn "*exception_receiver_1" + [(unspec_volatile [(const_int 0)] 7)] + "! TARGET_LD_BUGGY_LDGP" + "ldgp $29,0($26)" + [(set_attr "length" "8") (set_attr "type" "multi")]) +;; ??? We don't represent the usage of $29 properly in address loads +;; and function calls. This leads to the following move being deleted +;; as dead code unless it is represented as a volatile unspec. + +(define_insn "*exception_receiver_2" + [(unspec_volatile [(match_operand:DI 0 "nonimmediate_operand" "r,m")] 7)] + "TARGET_LD_BUGGY_LDGP" + "@ + mov %0,$29 + ldq $29,%0" + [(set_attr "type" "ilog,ild")]) + (define_expand "nonlocal_goto_receiver" [(unspec_volatile [(const_int 0)] 1) (set (reg:DI 27) (mem:DI (reg:DI 29))) diff --git a/gcc/config/alpha/elf.h b/gcc/config/alpha/elf.h index 9224a393d47..a77a64328d9 100644 --- a/gcc/config/alpha/elf.h +++ b/gcc/config/alpha/elf.h @@ -66,31 +66,9 @@ do { \ } \ } while (0) -/* Attach a special .ident directive to the end of the file to identify - the version of GCC which compiled this code. The format of the - .ident string is patterned after the ones produced by native svr4 - C compilers. */ - #undef IDENT_ASM_OP #define IDENT_ASM_OP "\t.ident\t" -#ifdef IDENTIFY_WITH_IDENT -#undef ASM_IDENTIFY_GCC -#define ASM_IDENTIFY_GCC(FILE) /* nothing */ -#undef ASM_IDENTIFY_LANGUAGE -#define ASM_IDENTIFY_LANGUAGE(FILE) \ - fprintf(FILE, "%s\"GCC (%s) %s\"\n", IDENT_ASM_OP, \ - lang_identify(), version_string) -#else -#undef ASM_FILE_END -#define ASM_FILE_END(FILE) \ -do { \ - if (!flag_no_ident) \ - fprintf ((FILE), "%s\"GCC: (GNU) %s\"\n", \ - IDENT_ASM_OP, version_string); \ - } while (0) -#endif - /* Allow #sccs in preprocessor. */ #define SCCS_DIRECTIVE @@ -480,6 +458,8 @@ void FN () \ } \ while (0) +#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1) + #define UNIQUE_SECTION_P(DECL) (DECL_ONE_ONLY (DECL)) #undef UNIQUE_SECTION @@ -707,3 +687,14 @@ void FN () \ #undef UNALIGNED_SHORT_ASM_OP #undef UNALIGNED_INT_ASM_OP #undef UNALIGNED_DOUBLE_INT_ASM_OP + +/* Select a format to encode pointers in exception handling data. CODE + is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is + true if the symbol may be affected by dynamic relocations. + + Since application size is already constrained to <2GB by the form of + the ldgp relocation, we can use a 32-bit pc-relative relocation to + static data. Dynamic data is accessed indirectly to allow for read + only EH sections. */ +#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ + (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) diff --git a/gcc/config/alpha/freebsd.h b/gcc/config/alpha/freebsd.h index f7c76b2a876..494fdab7a98 100644 --- a/gcc/config/alpha/freebsd.h +++ b/gcc/config/alpha/freebsd.h @@ -19,10 +19,6 @@ along with GNU CC; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ -#undef CPP_PREDEFINES -#define CPP_PREDEFINES \ - "-D__ELF__ -Dunix -D__FreeBSD__ -Asystem(unix) -Asystem(bsd) -Asystem(FreeBSD)" - /* Provide a CPP_SPEC appropriate for FreeBSD/alpha. Besides the dealing with the GCC option `-posix', and PIC issues as on all FreeBSD platforms, we must deal with the Alpha's FP issues. */ diff --git a/gcc/config/alpha/linux.h b/gcc/config/alpha/linux.h index c8f649a7582..e2a6e6004d7 100644 --- a/gcc/config/alpha/linux.h +++ b/gcc/config/alpha/linux.h @@ -28,8 +28,15 @@ Boston, MA 02111-1307, USA. */ "-Dlinux -Dunix -Asystem=linux -D_LONGLONG -D__alpha__ " \ SUB_CPP_PREDEFINES +/* The GNU C++ standard library requires that these macros be defined. */ +#undef CPLUSPLUS_CPP_SPEC +#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" + #undef LIB_SPEC -#define LIB_SPEC "%{pg:-lgmon} %{pg:-lc_p} %{!pg:-lc}" +#define LIB_SPEC \ + "%{shared: -lc} \ + %{!shared: %{pthread:-lpthread} \ + %{profile:-lc_p} %{!profile: -lc}}" /* Show that we need a GP when profiling. */ #undef TARGET_PROFILING_NEEDS_GP @@ -44,3 +51,54 @@ SUB_CPP_PREDEFINES /* Define this so that all GNU/Linux targets handle the same pragmas. */ #define HANDLE_PRAGMA_PACK_PUSH_POP + +/* Do code reading to identify a signal frame, and set the frame + state data appropriately. See unwind-dw2.c for the structs. */ + +#ifdef IN_LIBGCC2 +#include <signal.h> +#include <sys/ucontext.h> +#endif + +#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \ + do { \ + unsigned int *pc_ = (CONTEXT)->ra; \ + struct sigcontext *sc_; \ + long new_cfa_, i_; \ + \ + if (pc_[0] != 0x47fe0410 /* mov $30,$16 */ \ + || pc_[2] != 0x00000083 /* callsys */) \ + break; \ + if (pc_[1] == 0x201f0067) /* lda $0,NR_sigreturn */ \ + sc_ = (CONTEXT)->cfa; \ + else if (pc_[1] == 0x201f015f) /* lda $0,NR_rt_sigreturn */ \ + { \ + struct rt_sigframe { \ + struct siginfo info; \ + struct ucontext uc; \ + } *rt_ = (CONTEXT)->cfa; \ + sc_ = &rt_->uc.uc_mcontext; \ + } \ + else \ + break; \ + new_cfa_ = sc_->sc_regs[30]; \ + (FS)->cfa_how = CFA_REG_OFFSET; \ + (FS)->cfa_reg = 30; \ + (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \ + for (i_ = 0; i_ < 30; ++i_) \ + { \ + (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[i_].loc.offset \ + = (long)&sc_->sc_regs[i_] - new_cfa_; \ + } \ + for (i_ = 0; i_ < 31; ++i_) \ + { \ + (FS)->regs.reg[i_+32].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[i_+32].loc.offset \ + = (long)&sc_->sc_fpregs[i_] - new_cfa_; \ + } \ + (FS)->regs.reg[31].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[31].loc.offset = (long)&sc_->sc_pc - new_cfa_; \ + (FS)->retaddr_column = 31; \ + goto SUCCESS; \ + } while (0) diff --git a/gcc/config/alpha/osf.h b/gcc/config/alpha/osf.h index 1d1109b3c2f..1aecf33ad39 100644 --- a/gcc/config/alpha/osf.h +++ b/gcc/config/alpha/osf.h @@ -36,13 +36,18 @@ Boston, MA 02111-1307, USA. */ -Dunix -D__osf__ -D_LONGLONG -DSYSTYPE_BSD \ -D_SYSTYPE_BSD -Asystem=unix -Asystem=xpg4" +/* Tru64 UNIX V5 requires additional definitions for 16 byte long double + support. Empty by default. */ + +#define CPP_XFLOAT_SPEC "" + /* Accept DEC C flags for multithreaded programs. We use _PTHREAD_USE_D4 instead of PTHREAD_USE_D4 since both have the same effect and the former doesn't invade the users' namespace. */ #undef CPP_SUBTARGET_SPEC #define CPP_SUBTARGET_SPEC \ -"%{pthread|threads:-D_REENTRANT} %{threads:-D_PTHREAD_USE_D4}" +"%{pthread|threads:-D_REENTRANT} %{threads:-D_PTHREAD_USE_D4} %(cpp_xfloat)" /* Under OSF4, -p and -pg require -lprof1, and -lprof1 requires -lpdf. */ @@ -52,11 +57,13 @@ Boston, MA 02111-1307, USA. */ /* Pass "-G 8" to ld because Alpha's CC does. Pass -O3 if we are optimizing, -O1 if we are not. Pass -shared, -non_shared or - -call_shared as appropriate. Also pass -pg. */ + -call_shared as appropriate. Pass -hidden_symbol so that our + constructor and call-frame data structures are not accidentally + overridden. */ #define LINK_SPEC \ "-G 8 %{O*:-O3} %{!O*:-O1} %{static:-non_shared} \ - %{!static:%{shared:-shared} %{!shared:-call_shared}} %{pg} %{taso} \ - %{rpath*}" + %{!static:%{shared:-shared -hidden_symbol _GLOBAL_*} \ + %{!shared:-call_shared}} %{pg} %{taso} %{rpath*}" #define STARTFILE_SPEC \ "%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}" @@ -79,10 +86,14 @@ Boston, MA 02111-1307, USA. */ ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename); \ } +/* Tru64 UNIX V5.1 requires a special as flag. Empty by default. */ + +#define ASM_OLDAS_SPEC "" + /* No point in running CPP on our assembler output. */ #if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GAS) != 0 /* Don't pass -g to GNU as, because some versions don't accept this option. */ -#define ASM_SPEC "%{malpha-as:-g} -nocpp %{pg}" +#define ASM_SPEC "%{malpha-as:-g %(asm_oldas)} -nocpp %{pg}" #else /* In OSF/1 v3.2c, the assembler by default does not output file names which causes mips-tfile to fail. Passing -g to the assembler fixes this problem. @@ -91,7 +102,7 @@ Boston, MA 02111-1307, USA. */ if the user does not specify -g. If we don't pass -g, then mips-tfile will need to be fixed to work in this case. Pass -O0 since some optimization are broken and don't help us anyway. */ -#define ASM_SPEC "%{!mgas:-g} -nocpp %{pg} -O0" +#define ASM_SPEC "%{!mgas:-g %(asm_oldas)} -nocpp %{pg} -O0" #endif /* Specify to run a post-processor, mips-tfile after the assembler @@ -120,6 +131,11 @@ Boston, MA 02111-1307, USA. */ #endif +#undef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + { "cpp_xfloat", CPP_XFLOAT_SPEC }, \ + { "asm_oldas", ASM_OLDAS_SPEC } + /* Indicate that we have a stamp.h to use. */ #ifndef CROSS_COMPILE #define HAVE_STAMP_H 1 @@ -153,3 +169,17 @@ __enable_execute_stack (addr) \ #define HAS_INIT_SECTION #define LD_INIT_SWITCH "-init" #define LD_FINI_SWITCH "-fini" + +/* Select a format to encode pointers in exception handling data. CODE + is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is + true if the symbol may be affected by dynamic relocations. + + We really ought to be using the SREL32 relocations that ECOFF has, + but no version of the native assembler supports creating such things, + and Compaq has no plans to rectify this. Worse, the dynamic loader + cannot handle unaligned relocations, so we have to make sure that + things get padded appropriately. */ +#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ + (TARGET_GAS \ + ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \ + : DW_EH_PE_aligned) diff --git a/gcc/config/alpha/osf5.h b/gcc/config/alpha/osf5.h index 1c336bd0670..c832c574188 100644 --- a/gcc/config/alpha/osf5.h +++ b/gcc/config/alpha/osf5.h @@ -1,5 +1,5 @@ /* Definitions of target machine for GNU compiler, for DEC Alpha on Tru64 5. - Copyright (C) 2000 Free Software Foundation, Inc. + Copyright (C) 2000, 2001 Free Software Foundation, Inc. This file is part of GNU CC. @@ -20,3 +20,35 @@ #undef LONG_DOUBLE_TYPE_SIZE #define LONG_DOUBLE_TYPE_SIZE 128 + +/* Tru64 UNIX V5 has a 16 byte long double type and requires __X_FLOAT to be + defined to get the appropriate prototypes for the long double functions + in <math.h>. */ + +#undef CPP_XFLOAT_SPEC +#define CPP_XFLOAT_SPEC "-D__X_FLOAT" + +/* In Tru64 UNIX V5.1, Compaq introduced a new assembler + (/usr/lib/cmplrs/cc/adu) which currently (versions between 3.04.29 and + 3.04.32) breaks mips-tfile. Passing the undocumented -oldas flag reverts + to using the old assembler (/usr/lib/cmplrs/cc/as[01]). + + The V5.0 and V5.0A assemblers silently ignore -oldas, so it can be + specified here. + + It is clearly not desirable to depend on this undocumented flag, and + Compaq wants -oldas to go away soon, but until they have released a + new adu that works with mips-tfile, this is the only option. + + In some versions of the DTK, the assembler driver invokes ld after + assembly. This has been fixed in current versions, but adding -c + works as expected for all versions. */ + +#undef ASM_OLDAS_SPEC +#define ASM_OLDAS_SPEC "-oldas -c" + +/* The linker appears to perform invalid code optimizations that result + in the ldgp emitted for the exception_receiver pattern being incorrectly + linked. */ +#undef TARGET_LD_BUGGY_LDGP +#define TARGET_LD_BUGGY_LDGP 1 diff --git a/gcc/config/alpha/t-interix b/gcc/config/alpha/t-interix index d6d80e9c085..85474359320 100644 --- a/gcc/config/alpha/t-interix +++ b/gcc/config/alpha/t-interix @@ -4,11 +4,6 @@ # Even LANG_EXTRA_HEADERS may be temporary. USER_H=$(LANG_EXTRA_HEADERS) -# We don't want this one either. -INSTALL_ASSERT_H= - - - CROSS_LIBGCC1 = libgcc1-asm.a LIBGCC1 = libgcc1-asm.a diff --git a/gcc/config/alpha/t-osf4 b/gcc/config/alpha/t-osf4 index 5c7bd8afe65..af1a67dfcbb 100644 --- a/gcc/config/alpha/t-osf4 +++ b/gcc/config/alpha/t-osf4 @@ -7,12 +7,12 @@ TARGET_LIBGCC2_CFLAGS = -fPIC # Build a shared libgcc library. SHLIB_EXT = .so SHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \ - -Wl,-msym -Wl,-set_version,gcc.0 -Wl,-soname,@shlib_base_name@.so.0 \ + -Wl,-msym -Wl,-set_version,gcc.1 -Wl,-soname,@shlib_base_name@.so.1 \ -o @shlib_base_name@.so @multilib_flags@ @shlib_objs@ -lc && \ - rm -f @shlib_base_name@.so.0 && \ - $(LN_S) @shlib_base_name@.so @shlib_base_name@.so.0 + rm -f @shlib_base_name@.so.1 && \ + $(LN_S) @shlib_base_name@.so @shlib_base_name@.so.1 # $(slibdir) double quoted to protect it from expansion while building # libgcc.mk. We want this delayed until actual install time. -SHLIB_INSTALL = $(INSTALL_DATA) @shlib_base_name@.so $$(slibdir)/@shlib_base_name@.so.0; \ +SHLIB_INSTALL = $(INSTALL_DATA) @shlib_base_name@.so $$(slibdir)/@shlib_base_name@.so.1; \ rm -f $$(slibdir)/@shlib_base_name@.so; \ - $(LN_S) @shlib_base_name@.so.0 $$(slibdir)/@shlib_base_name@.so + $(LN_S) @shlib_base_name@.so.1 $$(slibdir)/@shlib_base_name@.so diff --git a/gcc/config/alpha/xm-alpha.h b/gcc/config/alpha/xm-alpha.h index 57ebeb11469..036975c98ef 100644 --- a/gcc/config/alpha/xm-alpha.h +++ b/gcc/config/alpha/xm-alpha.h @@ -20,11 +20,6 @@ along with GNU CC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* #defines that need visibility everywhere. */ -#define FALSE 0 -#define TRUE 1 - /* This describes the machine the compiler is hosted on. */ #define HOST_BITS_PER_CHAR 8 #define HOST_BITS_PER_SHORT 16 |