From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul H. Anderson" To: egcs@cygnus.com Cc: pha@pdq.com Subject: gcc alpha/NetBSD 1.3 target files Date: Thu, 30 Apr 1998 18:55:00 -0000 Message-id: X-SW-Source: 1998-04/msg01196.html egcs support folks, The following patches are a initial effort to get egcs working on the NetBSD/Alpha platform. The code comes entirely from the Linux work, usually with simple substitutions and a few slightly larger modifications. I've mailed a copyright assignment form and an employer release form to Richard Stallman today. It should be at his office early next week (certainly by Tuesday). The changes in this message allow a user to build egcs-1.0.2 and create a working compiler, with the following evident problems: /usr/local/lib/gcc-lib/alpha-unknown-netbsd1.3/egcs-2.90.27/include/limits.h:31: SCHAR_{MAX,MIN}, UCHAR_{}, CHAR_{}, etc, are redefined - I don't know why egcs put these limits back in... must be a config problem here. gdb has problems single stepping in c++ programs. The toolchain compiler did this also, though, so I'm not sure that I made this any worse. c++ static initializer seems to have problems (w/String object in libg++) I have not tested C++ exceptions at all egcs-1.0.2 won't build a NetBSD kernel, because of an unresolved global, _memcpy. This is probably simple to fix. Please let me know of any problems, questions, requests for changes, etc, that I may be able to help with. I have some modest interest in further work on the compiler, but it is more likely that some folks on the netbsd-alpha mail list will be doing additional bug fixes, etc. Paul Anderson pha@pdq.com ChangeLog follows: ----------------------- Wed Apr 29 10:56:12 1998 Paul Anderson * create config files needed for NetBSD/Alpha target * config/alpha/alpha.c: don't include if __NetBSD__ * config/alpha/elf-netbsd.h: copy and modify the Linux version * config/alpha/netbsd.h: copy and modify the Linux version * config/alpha/t-netbsd: copy and modify the Linux version * config/alpha/xm-netbsd.h: copy and modify the Linux version * configure: properly decode NetBSD/Alpha target setup diffs relative to egcs-1.0.2 follow: ----------------------- diff -Nrc3p egcs-1.0.2.cygnus/gcc/config/alpha/alpha.c egcs-1.0.2/gcc/config/alpha/alpha.c *** egcs-1.0.2.cygnus/gcc/config/alpha/alpha.c Thu Nov 20 18:07:26 1997 --- egcs-1.0.2/gcc/config/alpha/alpha.c Fri Apr 17 10:21:58 1998 *************** direct_return () *** 1927,1933 **** /* Write a version stamp. Don't write anything if we are running as a cross-compiler. Otherwise, use the versions in /usr/include/stamp.h. */ ! #if !defined(CROSS_COMPILE) && !defined(_WIN32) && !defined(__linux__) && !defined(VMS) #include #endif --- 1927,1933 ---- /* Write a version stamp. Don't write anything if we are running as a cross-compiler. Otherwise, use the versions in /usr/include/stamp.h. */ ! #if !defined(CROSS_COMPILE) && !defined(_WIN32) && !defined(__linux__) && !defined(VMS) && !defined(__NetBSD__) #include #endif diff -Nrc3p egcs-1.0.2.cygnus/gcc/config/alpha/elf-netbsd.h egcs-1.0.2/gcc/config/alpha/elf-netbsd.h *** egcs-1.0.2.cygnus/gcc/config/alpha/elf-netbsd.h Wed Dec 31 16:00:00 1969 --- egcs-1.0.2/gcc/config/alpha/elf-netbsd.h Fri Apr 17 10:27:04 1998 *************** *** 0 **** --- 1,521 ---- + /* Definitions of target machine for GNU compiler, for DEC Alpha w/ELF. + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Richard Henderson (rth@tamu.edu). + + This file is part of GNU CC. + + GNU CC is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + GNU CC 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + 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. */ + + /* This is used on Alpha platforms that use the ELF format. + Currently only Linux and NetBSD uses this. */ + + #undef TARGET_VERSION + #define TARGET_VERSION fprintf (stderr, " (Alpha NetBSD/ELF)"); + + #undef OBJECT_FORMAT_COFF + #undef EXTENDED_COFF + #define OBJECT_FORMAT_ELF + + #define SDB_DEBUGGING_INFO + + #undef ASM_FINAL_SPEC + + #undef CPP_PREDEFINES + #define CPP_PREDEFINES "\ + -D__alpha -D__alpha__ -D__NetBSD__ -D_LONGLONG -Dunix \ + -Asystem(unix) -Asystem(NetBSD) -Acpu(alpha) -Amachine(alpha) -D__ELF__" + + #undef LINK_SPEC + #ifdef USE_GNULIBC_1 + #define LINK_SPEC "-m elf64alpha -G 8 %{O*:-O3} %{!O*:-O1} \ + %{shared:-shared} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \ + %{static:-static}}" + #else + #define LINK_SPEC "-m elf64alpha -G 8 %{O*:-O3} %{!O*:-O1} \ + %{shared:-shared} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ + %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \ + %{static:-static}}" + #endif + + #ifndef USE_GNULIBC_1 + #undef DEFAULT_VTABLE_THUNKS + #define DEFAULT_VTABLE_THUNKS 1 + #endif + + #ifndef USE_GNULIBC_1 + #undef LIB_SPEC + #define LIB_SPEC \ + "%{shared: -lc} \ + %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \ + %{profile:-lc_p} %{!profile: -lc}}" + #endif + + /* Output at beginning of assembler file. */ + + #undef ASM_FILE_START + #define ASM_FILE_START(FILE) \ + { \ + alpha_write_verstamp (FILE); \ + output_file_directive (FILE, main_input_filename); \ + fprintf (FILE, "\t.version\t\"01.01\"\n"); \ + fprintf (FILE, "\t.set noat\n"); \ + } + + #define ASM_OUTPUT_SOURCE_LINE(STREAM, LINE) \ + alpha_output_lineno (STREAM, LINE) + extern void alpha_output_lineno (); + + extern void output_file_directive (); + + /* 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. */ + + #define IDENT_ASM_OP ".ident" + + #ifdef IDENTIFY_WITH_IDENT + #define ASM_IDENTIFY_GCC(FILE) /* nothing */ + #define ASM_IDENTIFY_LANGUAGE(FILE) \ + fprintf(FILE, "\t%s \"GCC (%s) %s\"\n", IDENT_ASM_OP, \ + lang_identify(), version_string) + #else + #define ASM_FILE_END(FILE) \ + do { \ + fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \ + IDENT_ASM_OP, version_string); \ + } while (0) + #endif + + /* Allow #sccs in preprocessor. */ + + #define SCCS_DIRECTIVE + + /* Output #ident as a .ident. */ + + #define ASM_OUTPUT_IDENT(FILE, NAME) \ + fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME); + + /* This is how to allocate empty space in some section. The .zero + pseudo-op is used for this on most svr4 assemblers. */ + + #define SKIP_ASM_OP ".zero" + + #undef ASM_OUTPUT_SKIP + #define ASM_OUTPUT_SKIP(FILE,SIZE) \ + fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE)) + + /* Output the label which precedes a jumptable. Note that for all svr4 + systems where we actually generate jumptables (which is to say every + svr4 target except i386, where we use casesi instead) we put the jump- + tables into the .rodata section and since other stuff could have been + put into the .rodata section prior to any given jumptable, we have to + make sure that the location counter for the .rodata section gets pro- + perly re-aligned prior to the actual beginning of the jump table. */ + + #define ALIGN_ASM_OP ".align" + + #ifndef ASM_OUTPUT_BEFORE_CASE_LABEL + #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ + ASM_OUTPUT_ALIGN ((FILE), 2); + #endif + + #undef ASM_OUTPUT_CASE_LABEL + #define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,JUMPTABLE) \ + do { \ + ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \ + ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \ + } while (0) + + /* The standard SVR4 assembler seems to require that certain builtin + library routines (e.g. .udiv) be explicitly declared as .globl + in each assembly file where they are referenced. */ + + #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ + ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0)) + + /* This says how to output assembler code to declare an + uninitialized external linkage data object. Under SVR4, + the linker seems to want the alignment of data objects + to depend on their types. We do exactly that here. */ + + #define COMMON_ASM_OP ".comm" + + #undef ASM_OUTPUT_ALIGNED_COMMON + #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ + do { \ + fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \ + } while (0) + + /* This says how to output assembler code to declare an + uninitialized internal linkage data object. Under SVR4, + the linker seems to want the alignment of data objects + to depend on their types. We do exactly that here. */ + + #define LOCAL_ASM_OP ".local" + + #undef ASM_OUTPUT_ALIGNED_LOCAL + #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ + do { \ + fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), "\n"); \ + ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ + } while (0) + + /* This is the pseudo-op used to generate a 64-bit word of data with a + specific value in some section. */ + + #define INT_ASM_OP ".quad" + + /* This is the pseudo-op used to generate a contiguous sequence of byte + values from a double-quoted string WITHOUT HAVING A TERMINATING NUL + AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */ + + #undef ASCII_DATA_ASM_OP + #define ASCII_DATA_ASM_OP ".ascii" + + /* Support const sections and the ctors and dtors sections for g++. + Note that there appears to be two different ways to support const + sections at the moment. You can either #define the symbol + READONLY_DATA_SECTION (giving it some code which switches to the + readonly data section) or else you can #define the symbols + EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and + SELECT_RTX_SECTION. We do both here just to be on the safe side. */ + + #define USE_CONST_SECTION 1 + + #define CONST_SECTION_ASM_OP ".section\t.rodata" + + /* Define the pseudo-ops used to switch to the .ctors and .dtors sections. + + Note that we want to give these sections the SHF_WRITE attribute + because these sections will actually contain data (i.e. tables of + addresses of functions in the current root executable or shared library + file) and, in the case of a shared library, the relocatable addresses + will have to be properly resolved/relocated (and then written into) by + the dynamic linker when it actually attaches the given shared library + to the executing process. (Note that on SVR4, you may wish to use the + `-z text' option to the ELF linker, when building a shared library, as + an additional check that you are doing everything right. But if you do + use the `-z text' option when building a shared library, you will get + errors unless the .ctors and .dtors sections are marked as writable + via the SHF_WRITE attribute.) */ + + #define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\"" + #define DTORS_SECTION_ASM_OP ".section\t.dtors,\"aw\"" + + /* On svr4, we *do* have support for the .init and .fini sections, and we + can put stuff in there to be executed before and after `main'. We let + crtstuff.c and other files know this by defining the following symbols. + The definitions say how to change sections to the .init and .fini + sections. This is the same for all known svr4 assemblers. */ + + #define INIT_SECTION_ASM_OP ".section\t.init" + #define FINI_SECTION_ASM_OP ".section\t.fini" + + /* A default list of other sections which we might be "in" at any given + time. For targets that use additional sections (e.g. .tdesc) you + should override this definition in the target-specific file which + includes this file. */ + + #undef EXTRA_SECTIONS + #define EXTRA_SECTIONS in_const, in_ctors, in_dtors + + /* A default list of extra section function definitions. For targets + that use additional sections (e.g. .tdesc) you should override this + definition in the target-specific file which includes this file. */ + + #undef EXTRA_SECTION_FUNCTIONS + #define EXTRA_SECTION_FUNCTIONS \ + CONST_SECTION_FUNCTION \ + CTORS_SECTION_FUNCTION \ + DTORS_SECTION_FUNCTION + + #undef READONLY_DATA_SECTION + #define READONLY_DATA_SECTION() const_section () + + extern void text_section (); + + #define CONST_SECTION_FUNCTION \ + void \ + const_section () \ + { \ + if (!USE_CONST_SECTION) \ + text_section(); \ + else if (in_section != in_const) \ + { \ + fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \ + in_section = in_const; \ + } \ + } + + #define CTORS_SECTION_FUNCTION \ + void \ + ctors_section () \ + { \ + if (in_section != in_ctors) \ + { \ + fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \ + in_section = in_ctors; \ + } \ + } + + #define DTORS_SECTION_FUNCTION \ + void \ + dtors_section () \ + { \ + if (in_section != in_dtors) \ + { \ + fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \ + in_section = in_dtors; \ + } \ + } + + /* Switch into a generic section. + This is currently only used to support section attributes. + + We make the section read-only and executable for a function decl, + read-only for a const data decl, and writable for a non-const data decl. */ + #define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \ + fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, \ + (DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \ + (DECL) && DECL_READONLY_SECTION (DECL, RELOC) ? "a" : "aw") + + + /* A C statement (sans semicolon) to output an element in the table of + global constructors. */ + #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ + do { \ + ctors_section (); \ + fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ + assemble_name (FILE, NAME); \ + fprintf (FILE, "\n"); \ + } while (0) + + /* A C statement (sans semicolon) to output an element in the table of + global destructors. */ + #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ + do { \ + dtors_section (); \ + fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ + assemble_name (FILE, NAME); \ + fprintf (FILE, "\n"); \ + } while (0) + + /* A C statement or statements to switch to the appropriate + section for output of DECL. DECL is either a `VAR_DECL' node + or a constant of some sort. RELOC indicates whether forming + the initial value of DECL requires link-time relocations. */ + + #define SELECT_SECTION(DECL,RELOC) \ + { \ + if (TREE_CODE (DECL) == STRING_CST) \ + { \ + if (! flag_writable_strings) \ + const_section (); \ + else \ + data_section (); \ + } \ + else if (TREE_CODE (DECL) == VAR_DECL) \ + { \ + if ((flag_pic && RELOC) \ + || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \ + || !DECL_INITIAL (DECL) \ + || (DECL_INITIAL (DECL) != error_mark_node \ + && !TREE_CONSTANT (DECL_INITIAL (DECL)))) \ + data_section (); \ + else \ + const_section (); \ + } \ + else \ + const_section (); \ + } + + /* A C statement or statements to switch to the appropriate + section for output of RTX in mode MODE. RTX is some kind + of constant in RTL. The argument MODE is redundant except + in the case of a `const_int' rtx. Currently, these always + go into the const section. */ + + #undef SELECT_RTX_SECTION + #define SELECT_RTX_SECTION(MODE,RTX) const_section() + + /* Define the strings used for the special svr4 .type and .size directives. + These strings generally do not vary from one system running svr4 to + another, but if a given system (e.g. m88k running svr) needs to use + different pseudo-op names for these, they may be overridden in the + file which includes this one. */ + + #define TYPE_ASM_OP ".type" + #define SIZE_ASM_OP ".size" + + /* This is how we tell the assembler that a symbol is weak. */ + + #define ASM_WEAKEN_LABEL(FILE,NAME) \ + do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \ + fputc ('\n', FILE); } while (0) + + /* This is how we tell the assembler that two symbols have the same value. */ + + #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \ + do { assemble_name(FILE, NAME1); \ + fputs(" = ", FILE); \ + assemble_name(FILE, NAME2); \ + fputc('\n', FILE); } while (0) + + /* The following macro defines the format used to output the second + operand of the .type assembler directive. Different svr4 assemblers + expect various different forms for this operand. The one given here + is just a default. You may need to override it in your machine- + specific tm.h file (depending upon the particulars of your assembler). */ + + #define TYPE_OPERAND_FMT "@%s" + + /* Write the extra assembler code needed to declare a function's result. + Most svr4 assemblers don't require any special declaration of the + result value, but there are exceptions. */ + + #ifndef ASM_DECLARE_RESULT + #define ASM_DECLARE_RESULT(FILE, RESULT) + #endif + + /* These macros generate the special .type and .size directives which + are used to set the corresponding fields of the linker symbol table + entries in an ELF object file under SVR4. These macros also output + the starting labels for the relevant functions/objects. */ + + /* Write the extra assembler code needed to declare an object properly. */ + + #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ + do { \ + fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ + assemble_name (FILE, NAME); \ + putc (',', FILE); \ + fprintf (FILE, TYPE_OPERAND_FMT, "object"); \ + putc ('\n', FILE); \ + size_directive_output = 0; \ + if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \ + { \ + size_directive_output = 1; \ + fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ + assemble_name (FILE, NAME); \ + fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ + } \ + ASM_OUTPUT_LABEL(FILE, NAME); \ + } while (0) + + /* Output the size directive for a decl in rest_of_decl_compilation + in the case where we did not do so before the initializer. + Once we find the error_mark_node, we know that the value of + size_directive_output was set + by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */ + + #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \ + do { \ + char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ + if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \ + && ! AT_END && TOP_LEVEL \ + && DECL_INITIAL (DECL) == error_mark_node \ + && !size_directive_output) \ + { \ + size_directive_output = 1; \ + fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ + assemble_name (FILE, name); \ + fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ + } \ + } while (0) + + /* A table of bytes codes used by the ASM_OUTPUT_ASCII and + ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table + corresponds to a particular byte value [0..255]. For any + given byte value, if the value in the corresponding table + position is zero, the given character can be output directly. + If the table value is 1, the byte must be output as a \ooo + octal escape. If the tables value is anything else, then the + byte value should be output as a \ followed by the value + in the table. Note that we can use standard UN*X escape + sequences for many control characters, but we don't use + \a to represent BEL because some svr4 assemblers (e.g. on + the i386) don't know about that. Also, we don't use \v + since some versions of gas, such as 2.2 did not accept it. */ + + #define ESCAPES \ + "\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ + \0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ + \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\ + \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\ + \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ + \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ + \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ + \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1" + + /* Some svr4 assemblers have a limit on the number of characters which + can appear in the operand of a .string directive. If your assembler + has such a limitation, you should define STRING_LIMIT to reflect that + limit. Note that at least some svr4 assemblers have a limit on the + actual number of bytes in the double-quoted string, and that they + count each character in an escape sequence as one byte. Thus, an + escape sequence like \377 would count as four bytes. + + If your target assembler doesn't support the .string directive, you + should define this to zero. + */ + + #define STRING_LIMIT ((unsigned) 256) + + #define STRING_ASM_OP ".string" + + /* + * We always use gas here, so we don't worry about ECOFF assembler problems. + */ + #undef TARGET_GAS + #define TARGET_GAS (1) + + #undef PREFERRED_DEBUGGING_TYPE + #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG + + #ifdef NOTDEF + /* Provide a STARTFILE_SPEC appropriate for NetBSD. Here we add + the NetBSD magical crtbegin.o file (see crtstuff.c) which + provides part of the support for getting C++ file-scope static + object constructed before entering `main'. */ + + #undef STARTFILE_SPEC + #define STARTFILE_SPEC \ + "%{!shared: \ + %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\ + crti.o%s crtbegin.o%s" + + /* Provide a ENDFILE_SPEC appropriate for NetBSD. Here we tack on + the NetBSD magical crtend.o file (see crtstuff.c) which + provides part of the support for getting C++ file-scope static + object constructed before entering `main', followed by a normal + NetBSD "finalizer" file, `crtn.o'. */ + + #undef ENDFILE_SPEC + #define ENDFILE_SPEC \ + "crtend.o%s crtn.o%s" + #endif diff -Nrc3p egcs-1.0.2.cygnus/gcc/config/alpha/netbsd.h egcs-1.0.2/gcc/config/alpha/netbsd.h *** egcs-1.0.2.cygnus/gcc/config/alpha/netbsd.h Wed Dec 31 16:00:00 1969 --- egcs-1.0.2/gcc/config/alpha/netbsd.h Fri Apr 17 10:09:57 1998 *************** *** 0 **** --- 1,98 ---- + /* Definitions of target machine for GNU compiler, for Alpha NetBSD, + using ECOFF. + Copyright (C) 1996 Free Software Foundation, Inc. + Contributed by Bob Manson. + + This file is part of GNU CC. + + GNU CC is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + GNU CC 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GNU CC; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + + #undef TARGET_DEFAULT + #define TARGET_DEFAULT (3 | MASK_GAS) + + #undef TARGET_VERSION + #define TARGET_VERSION fprintf (stderr, " (NetBSD/Alpha)"); + + #undef CPP_PREDEFINES + #define CPP_PREDEFINES "\ + -D__alpha -D__alpha__ -D__netbsd -D__netbsd -D_LONGLONG -Dnetbsd -Dunix \ + -Asystem(netbsd) -Acpu(alpha) -Amachine(alpha)" + + /* We don't actually need any of these; the MD_ vars are ignored + anyway for cross-compilers, and the other specs won't get picked up + because the user is supposed to do ld -r (hmm, perhaps that should be + the default). In any case, setting them thus will catch some + common user errors. */ + + #undef MD_EXEC_PREFIX + #undef MD_STARTFILE_PREFIX + + #undef LIB_SPEC + #define LIB_SPEC "%{pg:-lgmon} %{pg:-lc_p} %{!pg:-lc}" + + #undef LINK_SPEC + #define LINK_SPEC "-G 8 %{O*:-O3} %{!O*:-O1}" + + #undef ASM_SPEC + #define ASM_SPEC "-nocpp" + + /* Can't do stabs */ + #undef SDB_DEBUGGING_INFO + + /* Prefer dbx. */ + #undef PREFERRED_DEBUGGING_TYPE + #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG + + #undef FUNCTION_PROFILER + #define FUNCTION_PROFILER(FILE, LABELNO) \ + fputs ("\tjsr $28,_mcount\n", (FILE)) + + /* Generate calls to memcpy, etc., not bcopy, etc. */ + #define TARGET_MEM_FUNCTIONS + + /* Show that we need a GP when profiling. */ + #define TARGET_PROFILING_NEEDS_GP + + /* We need that too. */ + #define HANDLE_SYSV_PRAGMA + + #undef ASM_FINAL_SPEC + + /* Emit RTL insns to initialize the variable parts of a trampoline. + FNADDR is an RTX for the address of the function's pure code. + CXT is an RTX for the static chain value for the function. + + This differs from the standard version in that: + + We do not initialize the "hint" field because it only has an 8k + range and so the target is in range of something on the stack. + Omitting the hint saves a bogus branch-prediction cache line load. + + Linux always has an executable stack -- no need for a system call. + */ + + #undef INITIALIZE_TRAMPOLINE + #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ + { \ + rtx _addr; \ + \ + _addr = memory_address (Pmode, plus_constant ((TRAMP), 16)); \ + emit_move_insn (gen_rtx (MEM, Pmode, _addr), (FNADDR)); \ + _addr = memory_address (Pmode, plus_constant ((TRAMP), 24)); \ + emit_move_insn (gen_rtx (MEM, Pmode, _addr), (CXT)); \ + \ + emit_insn (gen_rtx (UNSPEC_VOLATILE, VOIDmode, \ + gen_rtvec (1, const0_rtx), 0)); \ + } diff -Nrc3p egcs-1.0.2.cygnus/gcc/config/alpha/t-netbsd egcs-1.0.2/gcc/config/alpha/t-netbsd *** egcs-1.0.2.cygnus/gcc/config/alpha/t-netbsd Wed Dec 31 16:00:00 1969 --- egcs-1.0.2/gcc/config/alpha/t-netbsd Fri Apr 17 10:09:57 1998 *************** *** 0 **** --- 1 ---- + USER_H = $(EXTRA_HEADERS) $(LANG_EXTRA_HEADERS) diff -Nrc3p egcs-1.0.2.cygnus/gcc/config/alpha/xm-netbsd.h egcs-1.0.2/gcc/config/alpha/xm-netbsd.h *** egcs-1.0.2.cygnus/gcc/config/alpha/xm-netbsd.h Wed Dec 31 16:00:00 1969 --- egcs-1.0.2/gcc/config/alpha/xm-netbsd.h Fri Apr 17 10:09:57 1998 *************** *** 0 **** --- 1,2 ---- + #undef USE_BFD + #define USE_BFD diff -Nrc3p egcs-1.0.2.cygnus/gcc/configure egcs-1.0.2/gcc/configure *** egcs-1.0.2.cygnus/gcc/configure Mon Mar 16 00:26:57 1998 --- egcs-1.0.2/gcc/configure Fri Apr 17 10:09:57 1998 *************** for machine in $build $host $target; do *** 1827,1832 **** --- 1827,1841 ---- thread_file='posix' fi ;; + alpha*-*-netbsd*) + tm_file="${tm_file} alpha/netbsd.h alpha/elf-netbsd.h" + xm_file="${xm_file} alpha/xm-netbsd.h" + # On NetBSD, the headers are already okay, except for math.h. + fixincludes=fixinc.math + tmake_file="t-netbsd alpha/t-netbsd" + xmake_file=none + gas=yes gnu_ld=yes + ;; alpha*-dec-osf[456789]*) if [ x$stabs = xyes ] then