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| author | Nick Clifton <nickc@redhat.com> | 2015-02-23 14:53:02 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2015-02-23 14:53:02 +0000 |
| commit | 0f8f0c57ea4742ad2d9b0598a18243331c1c06e3 (patch) | |
| tree | f5a577adf5af444ca801d78171ea669dc05dee9b /gas | |
| parent | 8f3102ea1a9954ed00f84a9e3452a79e94953840 (diff) | |
| download | gdb-0f8f0c57ea4742ad2d9b0598a18243331c1c06e3.zip gdb-0f8f0c57ea4742ad2d9b0598a18243331c1c06e3.tar.gz gdb-0f8f0c57ea4742ad2d9b0598a18243331c1c06e3.tar.bz2 | |
Fixes the generation of dwarf line debug information for the msp430, even in the presence of function sections and linker garbage collection.
PR 17940
* dwarf2dbg.c (out_header): When generating dwarf sections use
real symbols not temps for the start and end symbols.
* config/tc-msp430.h (TC_FORCE_RELOCATION_SUB_SAME): Also prevent
adjustments to relocations in debug sections.
(TC_LINKRELAX_FIXUP): Likewise.
* elf32-msp430.c (msp430_elf_relax_delete_bytes): Adjust debug
symbols at end of sections. Adjust function sizes.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 9 | ||||
| -rw-r--r-- | gas/config/tc-msp430.h | 5 | ||||
| -rw-r--r-- | gas/dwarf2dbg.c | 18 |
3 files changed, 28 insertions, 4 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index fe711bf..93dd2dd 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,12 @@ +2015-02-23 Nick Clifton <nickc@redhat.com> + + PR 17940 + * dwarf2dbg.c (out_header): When generating dwarf sections use + real symbols not temps for the start and end symbols. + * config/tc-msp430.h (TC_FORCE_RELOCATION_SUB_SAME): Also prevent + adjustments to relocations in debug sections. + (TC_LINKRELAX_FIXUP): Likewise. + 2015-02-19 Alan Modra <amodra@gmail.com> * doc/as.texinfo (Local Symbol Names): Don't use ':' in pxref. diff --git a/gas/config/tc-msp430.h b/gas/config/tc-msp430.h index 657dc1a..08115ac 100644 --- a/gas/config/tc-msp430.h +++ b/gas/config/tc-msp430.h @@ -159,7 +159,8 @@ extern bfd_boolean msp430_allow_local_subtract (expressionS *, expressionS *, se linker, but this fix is simpler, and it pretty much only affects object size a little bit. */ #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \ - (((SEC)->flags & SEC_CODE) != 0 \ + ( ((SEC)->flags & SEC_CODE) != 0 \ + || ((SEC)->flags & SEC_DEBUGGING) != 0 \ || ! SEG_NORMAL (SEC) \ || TC_FORCE_RELOCATION (FIX)) @@ -169,4 +170,4 @@ extern bfd_boolean msp430_allow_local_subtract (expressionS *, expressionS *, se #define DWARF2_USE_FIXED_ADVANCE_PC 1 -#define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_CODE) +#define TC_LINKRELAX_FIXUP(seg) ((seg->flags & SEC_CODE) || (seg->flags & SEC_DEBUGGING)) diff --git a/gas/dwarf2dbg.c b/gas/dwarf2dbg.c index 5dfd980..9177bdf 100644 --- a/gas/dwarf2dbg.c +++ b/gas/dwarf2dbg.c @@ -1467,8 +1467,22 @@ out_header (asection *sec, expressionS *exp) symbolS *end_sym; subseg_set (sec, 0); - start_sym = symbol_temp_new_now (); - end_sym = symbol_temp_make (); +#if 1 + if (flag_dwarf_sections) + { + /* If we are going to put the start and end symbols in different + sections, then we need real symbols, not just fake, local ones. */ + frag_now_fix (); + start_sym = symbol_make (".Ldebug_line_start"); + end_sym = symbol_make (".Ldebug_line_end"); + symbol_set_value_now (start_sym); + } + else +#endif + { + start_sym = symbol_temp_new_now (); + end_sym = symbol_temp_make (); + } /* Total length of the information. */ exp->X_op = O_subtract; |