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PR ld/10956

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* 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.
This commit is contained in:
Nick Clifton
2009-11-26 13:45:25 +00:00
parent f1b9c60a8f
commit 28d5f67740
15 changed files with 115 additions and 107 deletions
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24
ld/ld.h
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@@ -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. */