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Diffstat (limited to 'gnu/usr.bin/cc/lib/tm.h')
| -rw-r--r-- | gnu/usr.bin/cc/lib/tm.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/gnu/usr.bin/cc/lib/tm.h b/gnu/usr.bin/cc/lib/tm.h new file mode 100644 index 000000000000..22fb4b0a8e3f --- /dev/null +++ b/gnu/usr.bin/cc/lib/tm.h @@ -0,0 +1,172 @@ +/* Configuration for an i386 running 386BSD as the target machine. */ + +/* This is tested by i386gas.h. */ +#define YES_UNDERSCORES + +#include "i386/gstabs.h" + +/* Get perform_* macros to build libgcc.a. */ +#include "i386/perform.h" + +#undef CPP_PREDEFINES +#define CPP_PREDEFINES "-Dunix -Di386 -D__FreeBSD__ -D____386BSD____ -D__386BSD__ -DBSD_NET2" + +/* Like the default, except no -lg and no shared profiling libraries. */ +#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p -Bstatic}%{pg:-lc_p -Bstatic}" + +#undef SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#undef WCHAR_TYPE +#define WCHAR_TYPE "short unsigned int" + +#define WCHAR_UNSIGNED 1 + +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE 16 + +/* 386BSD does have atexit. */ + +#define HAVE_ATEXIT + +/* Redefine this to use %eax instead of %edx. */ +#undef FUNCTION_PROFILER +#define FUNCTION_PROFILER(FILE, LABELNO) \ +{ \ + if (flag_pic) \ + { \ + fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%eax\n", \ + LPREFIX, (LABELNO)); \ + fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \ + } \ + else \ + { \ + fprintf (FILE, "\tmovl $%sP%d,%%eax\n", LPREFIX, (LABELNO)); \ + fprintf (FILE, "\tcall mcount\n"); \ + } \ +} + +/* There are conflicting reports about whether this system uses + a different assembler syntax. wilson@cygnus.com says # is right. */ +#undef COMMENT_BEGIN +#define COMMENT_BEGIN "#" + +#undef ASM_APP_ON +#define ASM_APP_ON "#APP\n" + +#undef ASM_APP_OFF +#define ASM_APP_OFF "#NO_APP\n" + +/* The following macros are stolen from i386v4.h */ +/* These have to be defined to get PIC code correct */ + +/* This is how to output an element of a case-vector that is relative. + This is only used for PIC code. See comments by the `casesi' insn in + i386.md for an explanation of the expression this outputs. */ + +#undef ASM_OUTPUT_ADDR_DIFF_ELT +#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ + fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE) + +/* Indicate that jump tables go in the text section. This is + necessary when compiling PIC code. */ + +#define JUMP_TABLES_IN_TEXT_SECTION + +/* Don't default to pcc-struct-return, because gcc is the only compiler, and + we want to retain compatibility with older gcc versions. */ +#define DEFAULT_PCC_STRUCT_RETURN 0 + +/* + * Some imports from svr4.h in support of shared libraries. + * Currently, we need the DECLARE_OBJECT_SIZE stuff. + */ + +/* 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" +#define WEAK_ASM_OP ".weak" + +/* 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 a function properly. + Some svr4 assemblers need to also have something extra said about the + function's return value. We allow for that here. */ + +#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ + do { \ + fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ + assemble_name (FILE, NAME); \ + putc (',', FILE); \ + fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ + putc ('\n', FILE); \ + ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ + ASM_OUTPUT_LABEL(FILE, NAME); \ + } while (0) + +/* 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); \ + if (!flag_inhibit_size_directive) \ + { \ + 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) + +/* This is how to declare the size of a function. */ + +#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ + do { \ + if (!flag_inhibit_size_directive) \ + { \ + char label[256]; \ + static int labelno; \ + labelno++; \ + ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ + ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ + fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ + assemble_name (FILE, (FNAME)); \ + fprintf (FILE, ","); \ + assemble_name (FILE, label); \ + fprintf (FILE, "-"); \ + assemble_name (FILE, (FNAME)); \ + putc ('\n', FILE); \ + } \ + } while (0) + |