that Alpha implementations without FP operations are required to
provide the FP registers. */
-#define TARGET_FPREGS (target_flags & 2)
+#define TARGET_FPREGS (target_flags & 2)
+
+/* This means that gas is used to process the assembler file. */
+
+#define MASK_GAS 4
+#define TARGET_GAS (target_flags & MASK_GAS)
/* Macro to define tables used to set the flags.
This is a list in braces of pairs in braces,
{"soft-float", -1}, \
{"fp-regs", 2}, \
{"no-fp-regs", -3}, \
+ {"alpha-as", -MASK_GAS}, \
+ {"gas", MASK_GAS}, \
{"", TARGET_DEFAULT} }
#define TARGET_DEFAULT 3
extern int alpha_compare_fp_p;
/* This macro produces the initial definition of a function name. On the
- Alpha, we need to save the function name for the epilogue. */
+ Alpha, we need to save the function name for the prologue and epilogue. */
extern char *alpha_function_name;
#define ASM_DECLARE_FUNCTION_NAME(FILE,NAME,DECL) \
- { int _level; \
- tree _context; \
- for (_level = -1, _context = (DECL); _context; \
- _context = DECL_CONTEXT (_context), _level++) \
- ; \
- fprintf (FILE, "\t.ent %s %d\n", NAME, _level); \
- ASM_OUTPUT_LABEL (FILE, NAME); \
+{ \
alpha_function_name = NAME; \
}
/* Define if loading short immediate values into registers sign extends. */
#define SHORT_IMMEDIATES_SIGN_EXTEND
-/* We aren't doing ANYTHING about debugging for now. */
-/* #define SDB_DEBUGGING_INFO */
-
-/* Do not break .stabs pseudos into continuations. */
-#define DBX_CONTIN_LENGTH 0
-
-/* Don't try to use the `x' type-cross-reference character in DBX data.
- Also has the consequence of putting each struct, union or enum
- into a separate .stabs, containing only cross-refs to the others. */
-#define DBX_NO_XREFS
-
/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
is done just by pretending it is already truncated. */
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
/* Output at beginning of assembler file. */
#define ASM_FILE_START(FILE) \
-{ char *p, *after_dir = main_input_filename; \
- \
+{ \
alpha_write_verstamp (FILE); \
fprintf (FILE, "\t.set noreorder\n"); \
fprintf (FILE, "\t.set noat\n"); \
- for (p = main_input_filename; *p; p++) \
- if (*p == '/') \
- after_dir = p + 1; \
- fprintf (FILE, "\n\t.file 2 "); \
- output_quoted_string (FILE, after_dir); \
- fprintf (FILE, "\n"); \
+ ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename); \
}
/* Output to assembler file text saying following lines
{"aligned_memory_operand", {MEM}}, \
{"unaligned_memory_operand", {MEM}}, \
{"any_memory_operand", {MEM}},
+\f
+/* Definitions for debugging. */
+
+#define SDB_DEBUGGING_INFO /* generate info for mips-tfile */
+#define DBX_DEBUGGING_INFO /* generate embedded stabs */
+#define MIPS_DEBUGGING_INFO /* MIPS specific debugging info */
+
+#ifndef PREFERRED_DEBUGGING_TYPE /* assume SDB_DEBUGGING_INFO */
+#define PREFERRED_DEBUGGING_TYPE ((len > 1 && !strncmp (str, "ggdb", len)) ? DBX_DEBUG : SDB_DEBUG)
+#endif
+
+
+/* Correct the offset of automatic variables and arguments. Note that
+ the Alpha debug format wants all automatic variables and arguments
+ to be in terms of two different offsets from the virtual frame pointer,
+ which is the stack pointer before any adjustment in the function.
+ The offset for the argument pointer is fixed for the native compiler,
+ it is either zero (for the no arguments case) or large enough to hold
+ all argument registers.
+ The offset for the auto pointer is the fourth argument to the .frame
+ directive (local_offset).
+ To stay compatible with the native tools we use the same offsets
+ from the virtual frame pointer and adjust the debugger arg/auto offsets
+ accordingly. These debugger offsets are set up in output_prolog. */
+
+long alpha_arg_offset;
+long alpha_auto_offset;
+#define DEBUGGER_AUTO_OFFSET(X) \
+ ((GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0) + alpha_auto_offset)
+#define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET + alpha_arg_offset)
+
+
+#define ASM_OUTPUT_SOURCE_LINE(STREAM, LINE) \
+ alpha_output_lineno (STREAM, LINE)
+extern void alpha_output_lineno ();
+
+#define ASM_OUTPUT_SOURCE_FILENAME(STREAM, NAME) \
+ alpha_output_filename (STREAM, NAME)
+extern void alpha_output_filename ();
+
+
+/* Do not break .stabs pseudos into continuations. */
+#define DBX_CONTIN_LENGTH 0
+
+/* By default, turn on GDB extensions. */
+#define DEFAULT_GDB_EXTENSIONS 1
+
+/* If we are smuggling stabs through the ALPHA ECOFF object
+ format, put a comment in front of the .stab<x> operation so
+ that the ALPHA assembler does not choke. The mips-tfile program
+ will correctly put the stab into the object file. */
+
+#define ASM_STABS_OP ((TARGET_GAS) ? ".stabs" : " #.stabs")
+#define ASM_STABN_OP ((TARGET_GAS) ? ".stabn" : " #.stabn")
+#define ASM_STABD_OP ((TARGET_GAS) ? ".stabd" : " #.stabd")
+
+/* Forward references to tags are allowed. */
+#define SDB_ALLOW_FORWARD_REFERENCES
+
+/* Unknown tags are also allowed. */
+#define SDB_ALLOW_UNKNOWN_REFERENCES
+
+#define PUT_SDB_DEF(a) \
+do { \
+ fprintf (asm_out_file, "\t%s.def\t", \
+ (TARGET_GAS) ? "" : "#"); \
+ ASM_OUTPUT_LABELREF (asm_out_file, a); \
+ fputc (';', asm_out_file); \
+} while (0)
+
+#define PUT_SDB_PLAIN_DEF(a) \
+do { \
+ fprintf (asm_out_file, "\t%s.def\t.%s;", \
+ (TARGET_GAS) ? "" : "#", (a)); \
+} while (0)
+
+#define PUT_SDB_TYPE(a) \
+do { \
+ fprintf (asm_out_file, "\t.type\t0x%x;", (a)); \
+} while (0)
+
+/* For block start and end, we create labels, so that
+ later we can figure out where the correct offset is.
+ The normal .ent/.end serve well enough for functions,
+ so those are just commented out. */
+
+extern int sdb_label_count; /* block start/end next label # */
+
+#define PUT_SDB_BLOCK_START(LINE) \
+do { \
+ fprintf (asm_out_file, \
+ "$Lb%d:\n\t%s.begin\t$Lb%d\t%d\n", \
+ sdb_label_count, \
+ (TARGET_GAS) ? "" : "#", \
+ sdb_label_count, \
+ (LINE)); \
+ sdb_label_count++; \
+} while (0)
+
+#define PUT_SDB_BLOCK_END(LINE) \
+do { \
+ fprintf (asm_out_file, \
+ "$Le%d:\n\t%s.bend\t$Le%d\t%d\n", \
+ sdb_label_count, \
+ (TARGET_GAS) ? "" : "#", \
+ sdb_label_count, \
+ (LINE)); \
+ sdb_label_count++; \
+} while (0)
+
+#define PUT_SDB_FUNCTION_START(LINE)
+
+#define PUT_SDB_FUNCTION_END(LINE)
+
+#define PUT_SDB_EPILOGUE_END(NAME)
+
+/* Specify to run a post-processor, mips-tfile after the assembler
+ has run to stuff the ecoff debug information into the object file.
+ This is needed because the Alpha assembler provides no way
+ of specifying such information in the assembly file. */
+
+#if (TARGET_DEFAULT & MASK_GAS) != 0
+
+#define ASM_FINAL_SPEC "\
+%{malpha-as: %{!mno-mips-tfile: \
+ \n mips-tfile %{v*: -v} \
+ %{K: -I %b.o~} \
+ %{!K: %{save-temps: -I %b.o~}} \
+ %{c:%W{o*}%{!o*:-o %b.o}}%{!c:-o %U.o} \
+ %{.s:%i} %{!.s:%g.s}}}"
+
+#else
+#define ASM_FINAL_SPEC "\
+%{!mgas: %{!mno-mips-tfile: \
+ \n mips-tfile %{v*: -v} \
+ %{K: -I %b.o~} \
+ %{!K: %{save-temps: -I %b.o~}} \
+ %{c:%W{o*}%{!o*:-o %b.o}}%{!c:-o %U.o} \
+ %{.s:%i} %{!.s:%g.s}}}"
+
+#endif
+
+/* Macros for mips-tfile.c to encapsulate stabs in ECOFF, and for
+ mips-tdump.c to print them out.
+
+ These must match the corresponding definitions in gdb/mipsread.c.
+ Unfortunately, gcc and gdb do not currently share any directories. */
+
+#define CODE_MASK 0x8F300
+#define MIPS_IS_STAB(sym) (((sym)->index & 0xFFF00) == CODE_MASK)
+#define MIPS_MARK_STAB(code) ((code)+CODE_MASK)
+#define MIPS_UNMARK_STAB(code) ((code)-CODE_MASK)
+
+/* Override some mips-tfile definitions. */
+
+#define SHASH_SIZE 511
+#define THASH_SIZE 55
projects / gcc.git / commitdiff