diff options
author | Alan Modra <amodra@gmail.com> | 2008-04-07 23:56:18 +0000 |
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committer | Alan Modra <amodra@gmail.com> | 2008-04-07 23:56:18 +0000 |
commit | 7fd3924aefc8f7c341c71dfcaf7812bb031f38f9 (patch) | |
tree | 0f244a2df235a53ccef726185aaefe77969a3269 | |
parent | 16aef3def7791375a07e8d05e709cde27cd07fc4 (diff) | |
download | gdb-7fd3924aefc8f7c341c71dfcaf7812bb031f38f9.zip gdb-7fd3924aefc8f7c341c71dfcaf7812bb031f38f9.tar.gz gdb-7fd3924aefc8f7c341c71dfcaf7812bb031f38f9.tar.bz2 |
* dwarf2dbg.c (dwarf2_emit_insn): Simplify test before dwarf2_where
call. Delete out of date comment.
(dwarf2_consume_line_info): Always clear dwarf2_loc_directive_seen.
(dwarf2_emit_label): Don't emit unless there has been a previous
.file or we are outputting assembler generated debug.
dwarf2_consume_line_info after emitting line info, not before.
(out_debug_info): Simplify files_in_use test.
-rw-r--r-- | gas/ChangeLog | 10 | ||||
-rw-r--r-- | gas/dwarf2dbg.c | 53 |
2 files changed, 31 insertions, 32 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 3ea6ff1..3f18678 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,13 @@ +2008-04-08 Alan Modra <amodra@bigpond.net.au> + + * dwarf2dbg.c (dwarf2_emit_insn): Simplify test before dwarf2_where + call. Delete out of date comment. + (dwarf2_consume_line_info): Always clear dwarf2_loc_directive_seen. + (dwarf2_emit_label): Don't emit unless there has been a previous + .file or we are outputting assembler generated debug. + dwarf2_consume_line_info after emitting line info, not before. + (out_debug_info): Simplify files_in_use test. + 2008-04-07 H.J. Lu <hongjiu.lu@intel.com> * config/tc-i386.c (parse_real_register): Return AVX register diff --git a/gas/dwarf2dbg.c b/gas/dwarf2dbg.c index 615d644..220a175 100644 --- a/gas/dwarf2dbg.c +++ b/gas/dwarf2dbg.c @@ -57,8 +57,8 @@ do \ { \ if (offset > 1 \ - && string[0] != 0 \ - && string[1] == ':') \ + && string[0] != 0 \ + && string[1] == ':') \ string [offset] = '\\'; \ else \ string [offset] = '/'; \ @@ -346,7 +346,7 @@ dwarf2_where (struct dwarf2_line_info *line) *line = current; } -/* A hook to allow the target backend to inform the line number state +/* A hook to allow the target backend to inform the line number state machine of isa changes when assembler debug info is enabled. */ void @@ -365,19 +365,10 @@ dwarf2_emit_insn (int size) { struct dwarf2_line_info loc; - if (dwarf2_loc_directive_seen) - { - /* Use the last location established by a .loc directive, not - the value returned by dwarf2_where(). That calls as_where() - which will return either the logical input file name (foo.c) - or the physical input file name (foo.s) and not the file name - specified in the most recent .loc directive (eg foo.h). */ - loc = current; - } - else if (debug_type != DEBUG_DWARF2) + if (!dwarf2_loc_directive_seen && debug_type != DEBUG_DWARF2) return; - else - dwarf2_where (&loc); + + dwarf2_where (&loc); dwarf2_gen_line_info (frag_now_fix () - size, &loc); dwarf2_consume_line_info (); @@ -393,8 +384,7 @@ dwarf2_consume_line_info (void) { /* Unless we generate DWARF2 debugging information for each assembler line, we only emit one line symbol for one LOC. */ - if (debug_type != DEBUG_DWARF2) - dwarf2_loc_directive_seen = FALSE; + dwarf2_loc_directive_seen = FALSE; current.flags &= ~(DWARF2_FLAG_BASIC_BLOCK | DWARF2_FLAG_PROLOGUE_END @@ -415,16 +405,15 @@ dwarf2_emit_label (symbolS *label) return; if (!(bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE)) return; - - if (debug_type == DEBUG_DWARF2) - dwarf2_where (&loc); - else - loc = current; + if (files_in_use == 0 && debug_type != DEBUG_DWARF2) + return; + + dwarf2_where (&loc); loc.flags |= DWARF2_FLAG_BASIC_BLOCK; - dwarf2_consume_line_info (); dwarf2_gen_line_info_1 (label, &loc); + dwarf2_consume_line_info (); } /* Get a .debug_line file number for FILENAME. If NUM is nonzero, @@ -664,7 +653,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED) } else if (strcmp (p, "isa") == 0) { - *input_line_pointer = c; + *input_line_pointer = c; value = get_absolute_expression (); if (value >= 0) current.isa = value; @@ -677,7 +666,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED) else { as_bad (_("unknown .loc sub-directive `%s'"), p); - *input_line_pointer = c; + *input_line_pointer = c; return; } @@ -1432,9 +1421,9 @@ out_debug_ranges (segT ranges_seg) subseg_set (ranges_seg, 0); /* Base Address Entry. */ - for (i = 0; i < addr_size; i++) + for (i = 0; i < addr_size; i++) out_byte (0xff); - for (i = 0; i < addr_size; i++) + for (i = 0; i < addr_size; i++) out_byte (0); /* Range List Entry. */ @@ -1463,9 +1452,9 @@ out_debug_ranges (segT ranges_seg) } /* End of Range Entry. */ - for (i = 0; i < addr_size; i++) + for (i = 0; i < addr_size; i++) out_byte (0); - for (i = 0; i < addr_size; i++) + for (i = 0; i < addr_size; i++) out_byte (0); } @@ -1671,7 +1660,7 @@ out_debug_info (segT info_seg, segT abbrev_seg, segT line_seg, segT ranges_seg) on the command line, so assume files[1] is the main input file. We're not supposed to get called unless at least one line number entry was emitted, so this should always be defined. */ - if (!files || files_in_use < 1) + if (files_in_use == 0) abort (); if (files[1].dir) { @@ -1760,7 +1749,7 @@ dwarf2_finish (void) segT ranges_seg; assert (all_segs); - + info_seg = subseg_new (".debug_info", 0); abbrev_seg = subseg_new (".debug_abbrev", 0); aranges_seg = subseg_new (".debug_aranges", 0); @@ -1779,7 +1768,7 @@ dwarf2_finish (void) else { ranges_seg = subseg_new (".debug_ranges", 0); - bfd_set_section_flags (stdoutput, ranges_seg, + bfd_set_section_flags (stdoutput, ranges_seg, SEC_READONLY | SEC_DEBUGGING); record_alignment (ranges_seg, ffs (2 * sizeof_address) - 1); out_debug_ranges (ranges_seg); |