re PR target/20446 (invalid assembly with -gstabs+)
PR target/20446 * config/sparc/sparc.h (NEED_INDICATE_EXEC_STACK): Define to 0. * config/sparc/linux.h (TARGET_ASM_FILE_END): Delete. (NEED_INDICATE_EXEC_STACK): Define to 1. * config/sparc/linux64.h (TARGET_ASM_FILE_END): Delete. (NEED_INDICATE_EXEC_STACK): Define to 1. * config/sparc/sparc.c (TARGET_ASM_FILE_END): Set to sparc_file_end. (add_pc_to_pic_symbol): Rename into pic_helper_symbol. (add_pc_to_pic_symbol_name): Rename into pic_helper_symbol_name. (pic_helper_emitted_p): New global. (emit_pic_helper): New function extracted from... (load_pic_register): ...here. Add 'delay_pic_helper' parameter. Do not call emit_pic_helper if delay_pic_helper is true. (sparc_expand_prologue): Pass 'false' to load_pic_register. (sparc_output_mi_thunk): Pass 'true' to load_pic_register. (sparc_file_end): New function. From-SVN: r97550
This commit is contained in:
Eric Botcazou
Eric Botcazou
parent
105d7df650
commit
5e77eb534b
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@ -1,3 +1,22 @@
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2005-04-04 Eric Botcazou <ebotcazou@libertysurf.fr>
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PR target/20446
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* config/sparc/sparc.h (NEED_INDICATE_EXEC_STACK): Define to 0.
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* config/sparc/linux.h (TARGET_ASM_FILE_END): Delete.
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(NEED_INDICATE_EXEC_STACK): Define to 1.
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* config/sparc/linux64.h (TARGET_ASM_FILE_END): Delete.
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(NEED_INDICATE_EXEC_STACK): Define to 1.
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* config/sparc/sparc.c (TARGET_ASM_FILE_END): Set to sparc_file_end.
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(add_pc_to_pic_symbol): Rename into pic_helper_symbol.
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(add_pc_to_pic_symbol_name): Rename into pic_helper_symbol_name.
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(pic_helper_emitted_p): New global.
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(emit_pic_helper): New function extracted from...
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(load_pic_register): ...here. Add 'delay_pic_helper' parameter.
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Do not call emit_pic_helper if delay_pic_helper is true.
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(sparc_expand_prologue): Pass 'false' to load_pic_register.
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(sparc_output_mi_thunk): Pass 'true' to load_pic_register.
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(sparc_file_end): New function.
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2005-04-04 Kazu Hirata <kazu@cs.umass.edu>
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* config/mcore/mcore-protos.h: Remove the prototypes for
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@ -209,8 +209,6 @@ do { \
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#undef CTORS_SECTION_ASM_OP
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#undef DTORS_SECTION_ASM_OP
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#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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/* Determine whether the the entire c99 runtime is present in the
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runtime library. */
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#define TARGET_C99_FUNCTIONS 1
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@ -233,3 +231,6 @@ do { \
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change their minds. */
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#undef SPARC_RELAXED_ORDERING
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#define SPARC_RELAXED_ORDERING true
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#undef NEED_INDICATE_EXEC_STACK
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#define NEED_INDICATE_EXEC_STACK 1
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@ -343,8 +343,6 @@ do { \
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#undef CTORS_SECTION_ASM_OP
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#undef DTORS_SECTION_ASM_OP
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#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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/* Determine whether the the entire c99 runtime is present in the
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runtime library. */
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#define TARGET_C99_FUNCTIONS 1
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@ -367,3 +365,6 @@ do { \
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change their minds. */
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#undef SPARC_RELAXED_ORDERING
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#define SPARC_RELAXED_ORDERING true
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#undef NEED_INDICATE_EXEC_STACK
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#define NEED_INDICATE_EXEC_STACK 1
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@ -314,7 +314,8 @@ static rtx sparc_builtin_saveregs (void);
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static int epilogue_renumber (rtx *, int);
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static bool sparc_assemble_integer (rtx, unsigned int, int);
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static int set_extends (rtx);
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static void load_pic_register (void);
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static void emit_pic_helper (void);
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static void load_pic_register (bool);
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static int save_or_restore_regs (int, int, rtx, int, int);
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static void emit_save_regs (void);
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static void emit_restore_regs (void);
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@ -362,6 +363,7 @@ static bool sparc_pass_by_reference (CUMULATIVE_ARGS *,
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static int sparc_arg_partial_bytes (CUMULATIVE_ARGS *,
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enum machine_mode, tree, bool);
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static void sparc_dwarf_handle_frame_unspec (const char *, rtx, int);
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static void sparc_file_end (void);
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#ifdef SUBTARGET_ATTRIBUTE_TABLE
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const struct attribute_spec sparc_attribute_table[];
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#endif
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@ -504,6 +506,8 @@ enum processor_type sparc_cpu;
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#undef TARGET_RELAXED_ORDERING
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#define TARGET_RELAXED_ORDERING SPARC_RELAXED_ORDERING
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#define TARGET_ASM_FILE_END sparc_file_end
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struct gcc_target targetm = TARGET_INITIALIZER;
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/* Validate and override various options, and do some machine dependent
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@ -3355,13 +3359,12 @@ sparc_cannot_force_const_mem (rtx x)
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}
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}
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/* The table we use to reference PIC data. */
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/* PIC support. */
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static GTY(()) char pic_helper_symbol_name[256];
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static GTY(()) rtx pic_helper_symbol;
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static GTY(()) bool pic_helper_emitted_p = false;
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static GTY(()) rtx global_offset_table;
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/* The function we use to get at it. */
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static GTY(()) rtx add_pc_to_pic_symbol;
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static GTY(()) char add_pc_to_pic_symbol_name[256];
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/* Ensure that we are not using patterns that are not OK with PIC. */
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int
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@ -3951,46 +3954,57 @@ legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, enum machine_mode mode)
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return x;
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}
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/* Emit the special PIC prologue. */
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/* Emit the special PIC helper function. */
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static void
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load_pic_register (void)
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emit_pic_helper (void)
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{
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const char *pic_name = reg_names[REGNO (pic_offset_table_rtx)];
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int align;
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text_section ();
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align = floor_log2 (FUNCTION_BOUNDARY / BITS_PER_UNIT);
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if (align > 0)
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ASM_OUTPUT_ALIGN (asm_out_file, align);
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ASM_OUTPUT_LABEL (asm_out_file, pic_helper_symbol_name);
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if (flag_delayed_branch)
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fprintf (asm_out_file, "\tjmp\t%%o7+8\n\t add\t%%o7, %s, %s\n",
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pic_name, pic_name);
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else
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fprintf (asm_out_file, "\tadd\t%%o7, %s, %s\n\tjmp\t%%o7+8\n\t nop\n",
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pic_name, pic_name);
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pic_helper_emitted_p = true;
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}
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/* Emit code to load the PIC register. */
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static void
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load_pic_register (bool delay_pic_helper)
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{
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int orig_flag_pic = flag_pic;
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/* If we haven't emitted the special helper function, do so now. */
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if (add_pc_to_pic_symbol_name[0] == 0)
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/* If we haven't initialized the special PIC symbols, do so now. */
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if (!pic_helper_symbol_name[0])
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{
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const char *pic_name = reg_names[REGNO (pic_offset_table_rtx)];
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int align;
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ASM_GENERATE_INTERNAL_LABEL (add_pc_to_pic_symbol_name, "LADDPC", 0);
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text_section ();
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align = floor_log2 (FUNCTION_BOUNDARY / BITS_PER_UNIT);
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if (align > 0)
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ASM_OUTPUT_ALIGN (asm_out_file, align);
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ASM_OUTPUT_LABEL (asm_out_file, add_pc_to_pic_symbol_name);
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if (flag_delayed_branch)
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fprintf (asm_out_file, "\tjmp %%o7+8\n\t add\t%%o7, %s, %s\n",
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pic_name, pic_name);
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else
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fprintf (asm_out_file, "\tadd\t%%o7, %s, %s\n\tjmp %%o7+8\n\t nop\n",
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pic_name, pic_name);
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ASM_GENERATE_INTERNAL_LABEL (pic_helper_symbol_name, "LADDPC", 0);
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pic_helper_symbol = gen_rtx_SYMBOL_REF (Pmode, pic_helper_symbol_name);
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global_offset_table = gen_rtx_SYMBOL_REF (Pmode, "_GLOBAL_OFFSET_TABLE_");
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}
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/* Initialize every time through, since we can't easily
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know this to be permanent. */
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global_offset_table = gen_rtx_SYMBOL_REF (Pmode, "_GLOBAL_OFFSET_TABLE_");
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add_pc_to_pic_symbol = gen_rtx_SYMBOL_REF (Pmode, add_pc_to_pic_symbol_name);
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/* If we haven't emitted the special PIC helper function, do so now unless
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we are requested to delay it. */
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if (!delay_pic_helper && !pic_helper_emitted_p)
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emit_pic_helper ();
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flag_pic = 0;
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if (TARGET_ARCH64)
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emit_insn (gen_load_pcrel_symdi (pic_offset_table_rtx, global_offset_table,
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add_pc_to_pic_symbol));
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pic_helper_symbol));
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else
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emit_insn (gen_load_pcrel_symsi (pic_offset_table_rtx, global_offset_table,
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add_pc_to_pic_symbol));
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pic_helper_symbol));
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flag_pic = orig_flag_pic;
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/* Need to emit this whether or not we obey regdecls,
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@ -4639,7 +4653,7 @@ sparc_expand_prologue (void)
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/* Load the PIC register if needed. */
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if (flag_pic && current_function_uses_pic_offset_table)
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load_pic_register ();
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load_pic_register (false);
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}
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/* This function generates the assembly code for function entry, which boils
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@ -9060,7 +9074,9 @@ sparc_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
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{
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spill_reg = gen_rtx_REG (word_mode, 15); /* %o7 */
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start_sequence ();
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load_pic_register (); /* clobbers %o7 */
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/* Delay emitting the PIC helper function because it needs to
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change the section and we are emitting assembly code. */
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load_pic_register (true); /* clobbers %o7 */
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scratch = legitimize_pic_address (funexp, Pmode, scratch);
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seq = get_insns ();
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end_sequence ();
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@ -9211,4 +9227,15 @@ sparc_output_dwarf_dtprel (FILE *file, int size, rtx x)
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fputs (")", file);
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}
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static
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void sparc_file_end (void)
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{
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/* If we haven't emitted the special PIC helper function, do so now. */
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if (pic_helper_symbol_name[0] && !pic_helper_emitted_p)
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emit_pic_helper ();
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if (NEED_INDICATE_EXEC_STACK)
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file_end_indicate_exec_stack ();
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}
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#include "gt-sparc.h"
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@ -214,6 +214,9 @@ extern enum cmodel sparc_cmodel;
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total memory ordering (TMO). */
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#define SPARC_RELAXED_ORDERING false
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/* Do not use the .note.GNU-stack convention by default. */
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#define NEED_INDICATE_EXEC_STACK 0
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/* This is call-clobbered in the normal ABI, but is reserved in the
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home grown (aka upward compatible) embedded ABI. */
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#define EMBMEDANY_BASE_REG "%g4"
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