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dwarf2out.c: Don't assume that `.section ".text"' causes the assembler to treat .text as a... 

* dwarf2out.c: Don't assume that `.section ".text"' causes the
        assembler to treat .text as a label for the start of that section,
        as this assumption is false for Solaris 2.x `as'.  Instead, output
        `.section ".text"; .LLtext0:' and use .LLtext0 in label contexts.
        (ABBREV_LABEL, DEBUG_INFO_LABEL, DEBUG_LINE_LABEL, TEXT_LABEL):
        New macros.
        (abbrev_label, debug_info_label, debug_line_label, text_label):
        New vars.
        (dwarf2out_init): Initialize the vars.  Output defn for text_label.
        (dwarf2out_finish): Output defns for the other 3 vars.
        (dw_val_node): Rename val_section to val_section_label, as it's
        now a label, not a section.
        (add_AT_section_offset): Arg is now a label, not a section.
        (print_die, output_die, output_compilation_unit_header,
        output_pubnames, output_aranges, output_line_info,
        dwarf2out_finish): In label contexts, output the section label,
        not the section.

From-SVN: r19633
This commit is contained in:
Paul Eggert 1998-05-08 12:59:23 +00:00 committed by Jeff Law
parent 560bd19e94
commit 507c117699
2 changed files with 62 additions and 16 deletions
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20
gcc/ChangeLog
View File

@ -1,3 +1,23 @@
Fri May 8 13:59:31 1998 Paul Eggert <eggert@twinsun.com>
* dwarf2out.c: Don't assume that `.section ".text"' causes the
assembler to treat .text as a label for the start of that section,
as this assumption is false for Solaris 2.x `as'. Instead, output
`.section ".text"; .LLtext0:' and use .LLtext0 in label contexts.
(ABBREV_LABEL, DEBUG_INFO_LABEL, DEBUG_LINE_LABEL, TEXT_LABEL):
New macros.
(abbrev_label, debug_info_label, debug_line_label, text_label):
New vars.
(dwarf2out_init): Initialize the vars. Output defn for text_label.
(dwarf2out_finish): Output defns for the other 3 vars.
(dw_val_node): Rename val_section to val_section_label, as it's
now a label, not a section.
(add_AT_section_offset): Arg is now a label, not a section.
(print_die, output_die, output_compilation_unit_header,
output_pubnames, output_aranges, output_line_info,
dwarf2out_finish): In label contexts, output the section label,
not the section.
Fri May 8 09:47:29 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* Makefile.in (genrtl.o): Depend on system.h.

58
gcc/dwarf2out.c
View File

@ -2049,7 +2049,7 @@ typedef struct dw_val_struct
unsigned val_fde_index;
char *val_str;
char *val_lbl_id;
char *val_section;
char *val_section_label;
unsigned char val_flag;
}
v;
@ -2582,8 +2582,24 @@ static unsigned lookup_filename PROTO((char *));
If necessary, these may be overridden from within the tm.h file, but
typically, overriding these defaults is unnecessary. */
static char abbrev_label[MAX_ARTIFICIAL_LABEL_BYTES];
static char debug_info_label[MAX_ARTIFICIAL_LABEL_BYTES];
static char debug_line_label[MAX_ARTIFICIAL_LABEL_BYTES];
static char text_label[MAX_ARTIFICIAL_LABEL_BYTES];
static char text_end_label[MAX_ARTIFICIAL_LABEL_BYTES];
#ifndef ABBREV_LABEL
#define ABBREV_LABEL "Labbrev"
#endif
#ifndef DEBUG_INFO_LABEL
#define DEBUG_INFO_LABEL "Ldebug_info"
#endif
#ifndef DEBUG_LINE_LABEL
#define DEBUG_LINE_LABEL "Ldebug_line"
#endif
#ifndef TEXT_LABEL
#define TEXT_LABEL "Ltext"
#endif
#ifndef TEXT_END_LABEL
#define TEXT_END_LABEL "Letext"
#endif
@ -3796,17 +3812,17 @@ add_AT_lbl_id (die, attr_kind, lbl_id)
/* Add a section offset attribute value to a DIE. */
static inline void
add_AT_section_offset (die, attr_kind, section)
add_AT_section_offset (die, attr_kind, section_label)
register dw_die_ref die;
register enum dwarf_attribute attr_kind;
register char *section;
register char *section_label;
{
register dw_attr_ref attr = (dw_attr_ref) xmalloc (sizeof (dw_attr_node));
attr->dw_attr_next = NULL;
attr->dw_attr = attr_kind;
attr->dw_attr_val.val_class = dw_val_class_section_offset;
attr->dw_attr_val.v.val_section = section;
attr->dw_attr_val.v.val_section_label = section_label;
add_dwarf_attr (die, attr);
}
@ -4272,7 +4288,8 @@ print_die (die, outfile)
fprintf (outfile, "label: %s", a->dw_attr_val.v.val_lbl_id);
break;
case dw_val_class_section_offset:
fprintf (outfile, "section: %s", a->dw_attr_val.v.val_section);
fprintf (outfile, "section_label: %s",
a->dw_attr_val.v.val_section_label);
break;
case dw_val_class_str:
if (a->dw_attr_val.v.val_str != NULL)
@ -5336,8 +5353,7 @@ output_die (die)
case dw_val_class_section_offset:
ASM_OUTPUT_DWARF_OFFSET (asm_out_file,
stripattributes
(a->dw_attr_val.v.val_section));
a->dw_attr_val.v.val_section_label);
break;
case dw_val_class_str:
@ -5397,7 +5413,7 @@ output_compilation_unit_header ()
fprintf (asm_out_file, "\t%s DWARF version number", ASM_COMMENT_START);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_OFFSET (asm_out_file, stripattributes (ABBREV_SECTION));
ASM_OUTPUT_DWARF_OFFSET (asm_out_file, abbrev_label);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s Offset Into Abbrev. Section",
ASM_COMMENT_START);
@ -5470,7 +5486,7 @@ output_pubnames ()
fprintf (asm_out_file, "\t%s DWARF Version", ASM_COMMENT_START);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_OFFSET (asm_out_file, stripattributes (DEBUG_INFO_SECTION));
ASM_OUTPUT_DWARF_OFFSET (asm_out_file, debug_info_label);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s Offset of Compilation Unit Info.",
ASM_COMMENT_START);
@ -5550,7 +5566,7 @@ output_aranges ()
fprintf (asm_out_file, "\t%s DWARF Version", ASM_COMMENT_START);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_OFFSET (asm_out_file, stripattributes (DEBUG_INFO_SECTION));
ASM_OUTPUT_DWARF_OFFSET (asm_out_file, debug_info_label);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s Offset of Compilation Unit Info.",
ASM_COMMENT_START);
@ -5576,12 +5592,12 @@ output_aranges ()
ASM_COMMENT_START, 2 * PTR_SIZE);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_ADDR (asm_out_file, TEXT_SECTION);
ASM_OUTPUT_DWARF_ADDR (asm_out_file, text_label);
if (flag_debug_asm)
fprintf (asm_out_file, "\t%s Address", ASM_COMMENT_START);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_ADDR_DELTA (asm_out_file, text_end_label, TEXT_SECTION);
ASM_OUTPUT_DWARF_ADDR_DELTA (asm_out_file, text_end_label, text_label);
if (flag_debug_asm)
fprintf (asm_out_file, "%s Length", ASM_COMMENT_START);
@ -5766,14 +5782,14 @@ output_line_info ()
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_DATA1 (asm_out_file, DW_LNE_set_address);
fputc ('\n', asm_out_file);
ASM_OUTPUT_DWARF_ADDR (asm_out_file, TEXT_SECTION);
ASM_OUTPUT_DWARF_ADDR (asm_out_file, text_label);
fputc ('\n', asm_out_file);
/* Generate the line number to PC correspondence table, encoded as
a series of state machine operations. */
current_file = 1;
current_line = 1;
strcpy (prev_line_label, TEXT_SECTION);
strcpy (prev_line_label, text_label);
for (lt_index = 1; lt_index < line_info_table_in_use; ++lt_index)
{
register dw_line_info_ref line_info;
@ -9771,7 +9787,14 @@ dwarf2out_init (asm_out_file, main_input_filename)
invoked when the given (base) source file was compiled. */
gen_compile_unit_die (main_input_filename);
ASM_GENERATE_INTERNAL_LABEL (abbrev_label, ABBREV_LABEL, 0);
ASM_GENERATE_INTERNAL_LABEL (debug_info_label, DEBUG_INFO_LABEL, 0);
ASM_GENERATE_INTERNAL_LABEL (debug_line_label, DEBUG_LINE_LABEL, 0);
ASM_GENERATE_INTERNAL_LABEL (text_label, TEXT_LABEL, 0);
ASM_GENERATE_INTERNAL_LABEL (text_end_label, TEXT_END_LABEL, 0);
text_section ();
ASM_OUTPUT_LABEL (asm_out_file, text_label);
}
/* Output stuff that dwarf requires at the end of every file,
@ -9833,22 +9856,24 @@ dwarf2out_finish ()
{
fputc ('\n', asm_out_file);
ASM_OUTPUT_SECTION (asm_out_file, DEBUG_LINE_SECTION);
ASM_OUTPUT_LABEL (asm_out_file, debug_line_label);
output_line_info ();
/* We can only use the low/high_pc attributes if all of the code
was in .text. */
if (separate_line_info_table_in_use == 0)
{
add_AT_lbl_id (comp_unit_die, DW_AT_low_pc, TEXT_SECTION);
add_AT_lbl_id (comp_unit_die, DW_AT_low_pc, text_label);
add_AT_lbl_id (comp_unit_die, DW_AT_high_pc, text_end_label);
}
add_AT_section_offset (comp_unit_die, DW_AT_stmt_list, DEBUG_LINE_SECTION);
add_AT_section_offset (comp_unit_die, DW_AT_stmt_list, debug_line_label);
}
/* Output the abbreviation table. */
fputc ('\n', asm_out_file);
ASM_OUTPUT_SECTION (asm_out_file, ABBREV_SECTION);
ASM_OUTPUT_LABEL (asm_out_file, abbrev_label);
build_abbrev_table (comp_unit_die);
output_abbrev_section ();
@ -9859,6 +9884,7 @@ dwarf2out_finish ()
/* Output debugging information. */
fputc ('\n', asm_out_file);
ASM_OUTPUT_SECTION (asm_out_file, DEBUG_INFO_SECTION);
ASM_OUTPUT_LABEL (asm_out_file, debug_info_label);
output_compilation_unit_header ();
output_die (comp_unit_die);