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author | Nick Clifton <nickc@redhat.com> | 2009-11-26 13:45:25 +0000 |
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committer | Nick Clifton <nickc@redhat.com> | 2009-11-26 13:45:25 +0000 |
commit | 28d5f6774058f4c7d5141b1dda8b76ee81f8cf4f (patch) | |
tree | d2a5b9ce35ec5ae61d04c98564ff51460d3ec818 /ld/ld.h | |
parent | f1b9c60a8f8a6471f328fd1e1744c8592f63dd59 (diff) | |
download | gdb-28d5f6774058f4c7d5141b1dda8b76ee81f8cf4f.zip gdb-28d5f6774058f4c7d5141b1dda8b76ee81f8cf4f.tar.gz gdb-28d5f6774058f4c7d5141b1dda8b76ee81f8cf4f.tar.bz2 |
PR ld/10956
* ld.h (struct args_type): Rename 'relax' field to
'disable_target_specific_optimizations' and turn it into a
tri-state variable.
(RELAXATION_DISABLED_BY_DEFAULT): New macro.
(RELAXATION_DISABLED_BY_USER): New macro.
(RELAXATION_ENABLED): New macro.
(DISABLE_RELAXATION): New macro.
(ENABLE_RELAXATION): New macro.
* lexsup (enum option_values): Add OPTION_NO_RELAX.
(struct ld_options): Add --no-relax.
(parse_args): Handle OPTION_NO_RELAX. Use DISABLE_RELAXATION and
ENABLE_RELAXATION macros.
* ldlang.c (lang_relax_sections): Use RELAXATION_ENABLED macro.
(lang_process): Likewise.
* ldmain.c (main): Initialise
disable_target_specific_optimizations field.
(multiple_definition): Use RELAXATION_ENABLED macro.
* ld.texinfo: Document new command line option.
* emultempl/alphaelf.em: Remove --no-relax option.
(before_allocation): Test RELAXATION_DISABLED_BY_USER macro.
Use ENABLE_RELAXATION macro.
* emultempl/avrelf.em: (after_allocation): Test RELAXATION_ENABLED
macro.
* emultempl/cr16elf.em: Remove --no-relax option.
(before_allocation): Test RELAXATION_DISABLED_BY_USER macro.
Use ENABLE_RELAXATION macro.
* emultempl/crxelf.em: Remove --no-relax option.
(before_allocation): Test RELAXATION_DISABLED_BY_USER macro.
Use ENABLE_RELAXATION macro.
* emultempl/mmix-elfnmmo.em: (before_allocation): Use
ENABLE_RELAXATION macro.
* emultempl/needrelax.em: (before_allocation): Use
ENABLE_RELAXATION macro.
* emultempl/ppc32elf.em: (before_allocation): Test
RELAXATION_DISABLED_BY_DEFAULT macro. Use
ENABLE_RELAXATION macro.
* emultempl/sh64elf.em: (before_allocation): Test
RELAXATION_ENABLED macro. Use DISABLE_RELAXATION macro.
* emultempl/xtensaelf.em: Remove --no-relax option.
(before_allocation): Test RELAXATION_ENABLED macro.
Use ENABLE_RELAXATION macro.
Diffstat (limited to 'ld/ld.h')
-rw-r--r-- | ld/ld.h | 24 |
1 files changed, 23 insertions, 1 deletions
@@ -146,7 +146,29 @@ typedef struct { /* 1 => do not assign addresses to common symbols. */ bfd_boolean inhibit_common_definition; - bfd_boolean relax; + + /* Enable or disable target specific optimizations. + + Not all targets have optimizations to enable. + + Normally these optimizations are disabled by default but some targets + prefer to enable them by default. So this field is a tri-state variable. + The values are: + + zero: Enable the optimizations (either from --relax being specified on + the command line or the backend's before_allocation emulation function. + + positive: The user has requested that these optimizations be disabled. + (Via the --no-relax command line option). + + negative: The optimizations are disabled. (Set when initializing the + args_type structure in ldmain.c:main. */ + signed int disable_target_specific_optimizations; +#define RELAXATION_DISABLED_BY_DEFAULT (command_line.disable_target_specific_optimizations < 0) +#define RELAXATION_DISABLED_BY_USER (command_line.disable_target_specific_optimizations > 0) +#define RELAXATION_ENABLED (command_line.disable_target_specific_optimizations == 0) +#define DISABLE_RELAXATION do { command_line.disable_target_specific_optimizations = 1; } while (0) +#define ENABLE_RELAXATION do { command_line.disable_target_specific_optimizations = 0; } while (0) /* If TRUE, build MIPS embedded PIC relocation tables in the output file. */ |