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mips.h (mips_cache_flush_func): Prototype.

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* config/mips/mips.h (mips_cache_flush_func): Prototype.
(TARGET_OPTIONS): Support -mflush-func= and -mno-flush-func.
(INITIALIZE_TRAMPOLINE): Use mips_cache_flush_func if nonzero.
* config/mips/mips.c (mips_cache_flush_func): New.
* doc/invoke.texi: Document the new options.

From-SVN: r46686
This commit is contained in:
DJ Delorie 2001-10-31 16:08:00 -05:00 committed by DJ Delorie
parent c7e2dba59a
commit d490e8ad9f
4 changed files with 32 additions and 5 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2001-10-31 DJ Delorie <dj@redhat.com>
* config/mips/mips.h (mips_cache_flush_func): Prototype.
(TARGET_OPTIONS): Support -mflush-func= and -mno-flush-func.
(INITIALIZE_TRAMPOLINE): Use mips_cache_flush_func if nonzero.
* config/mips/mips.c (mips_cache_flush_func): New.
* doc/invoke.texi: Document the new options.
2001-10-31 Hans-Peter Nilsson <hp@axis.com>
* config.gcc (cris-*-linux*, tm_file): Rearrange order.

2
gcc/config/mips/mips.c
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@ -262,6 +262,8 @@ int mips16_hard_float;
avoid using up another bit in target_flags. */
const char *mips_entry_string;
const char *mips_cache_flush_func = CACHE_FLUSH_FUNC;
/* Whether we should entry and exit pseudo-ops in mips16 mode. */
int mips_entry;

8
gcc/config/mips/mips.h
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@ -163,6 +163,7 @@ extern const char *mips_abi_string; /* for -mabi={32,n32,64} */
extern const char *mips_entry_string; /* for -mentry */
extern const char *mips_no_mips16_string;/* for -mno-mips16 */
extern const char *mips_explicit_type_size_string;/* for -mexplicit-type-size */
extern const char *mips_cache_flush_func;/* for -mflush-func= and -mno-flush-func */
extern int mips_split_addresses; /* perform high/lo_sum support */
extern int dslots_load_total; /* total # load related delay slots */
extern int dslots_load_filled; /* # filled load delay slots */
@ -625,6 +626,10 @@ extern void sbss_section PARAMS ((void));
N_("Don't use MIPS16 instructions")}, \
{ "explicit-type-size", &mips_explicit_type_size_string, \
NULL}, \
{ "no-flush-func", &mips_cache_flush_func, \
N_("Don't call any cache flush functions")}, \
{ "flush-func=", &mips_cache_flush_func, \
N_("Specify cache flush function")}, \
}
/* This is meant to be redefined in the host dependent files. */
@ -2832,7 +2837,8 @@ typedef struct mips_args {
/* Flush both caches. We need to flush the data cache in case \
the system has a write-back cache. */ \
/* ??? Should check the return value for errors. */ \
emit_library_call (gen_rtx_SYMBOL_REF (Pmode, CACHE_FLUSH_FUNC), \
if (mips_cache_flush_func && mips_cache_flush_func[0]) \
emit_library_call (gen_rtx_SYMBOL_REF (Pmode, mips_cache_flush_func), \
0, VOIDmode, 3, addr, Pmode, \
GEN_INT (TRAMPOLINE_SIZE), TYPE_MODE (integer_type_node),\
GEN_INT (3), TYPE_MODE (integer_type_node)); \

13
gcc/doc/invoke.texi
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@ -462,7 +462,7 @@ in the following sections.
-m4650 -msingle-float -mmad @gol
-mstats -EL -EB -G @var{num} -nocpp @gol
-mabi=32 -mabi=n32 -mabi=64 -mabi=eabi @gol
-mfix7000 -mno-crt0}
-mfix7000 -mno-crt0 -mflush-func=@var{func} -mno-flush-func}
@emph{i386 and x86-64 Options}
@gccoptlist{
@ -7431,6 +7431,17 @@ occurs in the following two instructions.
@item -no-crt0
@opindex no-crt0
Do not include the default crt0.
@item -mflush-func=@var{func}
@itemx -mno-flush-func
@opindex mflush-func
Specifies the function to call to flush the I and D caches, or to not
call any such function. If called, the function must take the same
arguments as the common @code{_flush_func()}, that is, the address of the
memory range for which the cache is being flushed, the size of the
memory range, and the number 3 (to flush both caches). The default
depends on the target gcc was configured for, but commonly is either
@samp{_flush_func} or @samp{__cpu_flush}.
@end table
@ifset INTERNALS