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binutils-gdb
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* dwarf2dbg.c: Rewrite from scratch. Queue all debugging output 

until dwarf2_finish; use relaxation to get cross-fragment offsets;
        thread multiple subsegments properly; handle multiple code
        sections properly; emit proper compilation unit info for assembler
        generated debugging.

        * as.h (enum _relax_state): Add rs_dwarf2dbg.
        * dwarf2dbg.h (struct dwarf2_line_info): Remove filename.
        (dwarf2dbg_estimate_size_before_relax): Declare.
        (dwarf2dbg_relax_frag, dwarf2dbg_convert_frag): Declare.
        * write.c: Include dwarf2dbg.h.
        (cvt_frag_to_fill): Handle rs_dwarf2dbg.
        (relax_segment): Likewise.
This commit is contained in:
Richard Henderson 2000-11-29 21:42:41 +00:00
parent b13291a979
commit 220e750f6f
5 changed files with 1150 additions and 740 deletions
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16
gas/ChangeLog
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@ -1,3 +1,19 @@
2000-11-29 Richard Henderson <rth@redhat.com>
* dwarf2dbg.c: Rewrite from scratch. Queue all debugging output
until dwarf2_finish; use relaxation to get cross-fragment offsets;
thread multiple subsegments properly; handle multiple code
sections properly; emit proper compilation unit info for assembler
generated debugging.
* as.h (enum _relax_state): Add rs_dwarf2dbg.
* dwarf2dbg.h (struct dwarf2_line_info): Remove filename.
(dwarf2dbg_estimate_size_before_relax): Declare.
(dwarf2dbg_relax_frag, dwarf2dbg_convert_frag): Declare.
* write.c: Include dwarf2dbg.h.
(cvt_frag_to_fill): Handle rs_dwarf2dbg.
(relax_segment): Likewise.
2000-11-28 Hans-Peter Nilsson <hp@bitrange.com>
* config/tc-sh.c (md_convert_frag) <undefined symbol, conditional

5
gas/as.h
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@ -387,7 +387,10 @@ enum _relax_state {
rs_leb128,
/* Exception frame information which we may be able to optimize. */
rs_cfa
rs_cfa,
/* Cross-fragment dwarf2 line number optimization. */
rs_dwarf2dbg
};
typedef enum _relax_state relax_stateT;

1844
gas/dwarf2dbg.c
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File diff suppressed because it is too large Load Diff

12
gas/dwarf2dbg.h
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@ -27,7 +27,6 @@
#define DWARF2_FLAG_BEGIN_BLOCK (1 << 1) /* beginning of basic block */
struct dwarf2_line_info {
char *filename;
unsigned int filenum;
unsigned int line;
unsigned int column;
@ -61,10 +60,13 @@ extern void dwarf2_where PARAMS ((struct dwarf2_line_info *l));
extern void dwarf2_gen_line_info PARAMS ((addressT addr,
struct dwarf2_line_info *l));
/* Must be called after all other input is processed to finish up the
.debug_line section. */
extern void dwarf2_finish PARAMS ((void));
/* Must be called for each generated instruction. */
extern void dwarf2_emit_insn PARAMS ((int));
extern void dwarf2_finish PARAMS ((void));
extern int dwarf2dbg_estimate_size_before_relax PARAMS ((fragS *));
extern int dwarf2dbg_relax_frag PARAMS ((fragS *));
extern void dwarf2dbg_convert_frag PARAMS ((fragS *));
#endif /* AS_DWARF2DBG_H */

13
gas/write.c
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@ -25,6 +25,7 @@
#include "subsegs.h"
#include "obstack.h"
#include "output-file.h"
#include "dwarf2dbg.h"
/* This looks like a good idea. Let's try turning it on always, for now. */
#undef BFD_FAST_SECTION_FILL
@ -534,6 +535,10 @@ cvt_frag_to_fill (headersP, sec, fragP)
eh_frame_convert_frag (fragP);
break;
case rs_dwarf2dbg:
dwarf2dbg_convert_frag (fragP);
break;
case rs_machine_dependent:
#ifdef BFD_ASSEMBLER
md_convert_frag (stdoutput, sec, fragP);
@ -2193,6 +2198,10 @@ relax_segment (segment_frag_root, segment)
address += eh_frame_estimate_size_before_relax (fragP);
break;
case rs_dwarf2dbg:
address += dwarf2dbg_estimate_size_before_relax (fragP);
break;
default:
BAD_CASE (fragP->fr_type);
break;
@ -2409,6 +2418,10 @@ relax_segment (segment_frag_root, segment)
growth = eh_frame_relax_frag (fragP);
break;
case rs_dwarf2dbg:
growth = dwarf2dbg_relax_frag (fragP);
break;
default:
BAD_CASE (fragP->fr_type);
break;