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| author | Nick Clifton <nickc@redhat.com> | 2015-04-14 16:23:33 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2015-04-14 16:23:33 +0100 |
| commit | 6ff71e768112317de1236a429e7c88c9d3e32116 (patch) | |
| tree | 3d24e09232efe594ec6a32482a95b2f161250e4e /gas/config/tc-rl78.h | |
| parent | 9e811bc379ef78f0e2beadda9ed3ce6679ded7ea (diff) | |
| download | gdb-6ff71e768112317de1236a429e7c88c9d3e32116.zip gdb-6ff71e768112317de1236a429e7c88c9d3e32116.tar.gz gdb-6ff71e768112317de1236a429e7c88c9d3e32116.tar.bz2 | |
Adds support to the RL78 port for linker relaxation affecting .debug sections.
gas * config/tc-rl78.h (TC_LINKRELAX_FIXUP): Define.
(TC_FORCE_RELOCATION_SUB_SAME): Define.
(DWARF2_USE_FIXED_ADVANCE_PC): Define.
* gas/lns/lns.exp: Add RL78 to list of targets using
DW_LNS_fixed_advance_pc.
bfd * elf32-rl78.c (RL78_OP_REL): New macro.
(rl78_elf_howto_table): Use it for complex relocs.
(get_symbol_value): Handle the cases when the info or status
arguments are NULL.
(get_romstart): Cache the status returned by get_symbol_value.
(get_ramstart): Likewise.
(RL78_STACK_PUSH): Generate an error message if the stack
overflows.
(RL78_STACK_POP): Likewise for underflows.
(rl78_compute_complex_reloc): New function. Contains the basic
processing code for all RL78 complex relocs.
(rl78_special_reloc): New function. Provides special reloc
handling for complex relocs.
(rl78_elf_relocate_section): Use rl78_compute_complex_reloc.
(rl78_offset_for_reloc): Likewise.
binutils* readelf.c (target_specific_reloc_handling): Add code to handle
RL78 complex relocs.
Diffstat (limited to 'gas/config/tc-rl78.h')
| -rw-r--r-- | gas/config/tc-rl78.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gas/config/tc-rl78.h b/gas/config/tc-rl78.h index e2b9699..b9ede61 100644 --- a/gas/config/tc-rl78.h +++ b/gas/config/tc-rl78.h @@ -85,3 +85,17 @@ extern void rl78_elf_final_processing (void); #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \ ((EXP)->X_md = 0, expression (EXP), TC_PARSE_CONS_RETURN_NONE) + +#define TC_LINKRELAX_FIXUP(seg) ((seg->flags & SEC_CODE) || (seg->flags & SEC_DEBUGGING)) + +/* Do not adjust relocations involving symbols in code sections, + because it breaks linker relaxations. This could be fixed in the + 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_DEBUGGING) != 0 \ + || ! SEG_NORMAL (SEC) \ + || TC_FORCE_RELOCATION (FIX)) + +#define DWARF2_USE_FIXED_ADVANCE_PC 1 |