diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 40 |
1 files changed, 28 insertions, 12 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 4b885113797..8208238083f 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -1,4 +1,4 @@ -@c Copyright (C) 1988,1989,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002 +@c Copyright (C) 1988,1989,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003 @c Free Software Foundation, Inc. @c This is part of the GCC manual. @c For copying conditions, see the file gcc.texi. @@ -390,7 +390,7 @@ the target makefile fragment or if none of the options listed in @findex RELATIVE_PREFIX_NOT_LINKDIR @item RELATIVE_PREFIX_NOT_LINKDIR -Define this macro to tell @code{gcc} that it should only translate +Define this macro to tell @command{gcc} that it should only translate a @option{-B} prefix into a @option{-L} linker option if the prefix indicates an absolute file name. @@ -2304,7 +2304,7 @@ which is the register value plus a displacement. @findex MODE_BASE_REG_CLASS @item MODE_BASE_REG_CLASS (@var{mode}) This is a variation of the @code{BASE_REG_CLASS} macro which allows -the selection of a base register in a mode depenedent manner. If +the selection of a base register in a mode dependent manner. If @var{mode} is VOIDmode then it should return the same value as @code{BASE_REG_CLASS}. @@ -2561,10 +2561,9 @@ should be the maximum value of @code{HARD_REGNO_NREGS (@var{regno}, This macro helps control the handling of multiple-word values in the reload pass. -@item CANNOT_CHANGE_MODE_CLASS(@var{from}, @var{to}) -If defined, a C expression that returns a register class for which -a change from mode @var{from} to mode @var{to} is invalid, otherwise the -macro returns @code{NO_REGS}. +@item CANNOT_CHANGE_MODE_CLASS(@var{from}, @var{to}, @var{class}) +If defined, a C expression that returns nonzero for a @var{class} for which +a change from mode @var{from} to mode @var{to} is invalid. For the example, loading 32-bit integer or floating-point objects into floating-point registers on the Alpha extends them to 64 bits. @@ -2574,8 +2573,9 @@ register. Therefore, @file{alpha.h} defines @code{CANNOT_CHANGE_MODE_CLASS} as below: @example -#define CANNOT_CHANGE_MODE_CLASS \ - (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) ? FLOAT_REGS : NO_REGS) +#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \ + (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \ + ? reg_classes_intersect_p (FLOAT_REGS, (CLASS)) : 0) @end example @end table @@ -4179,7 +4179,7 @@ not support varargs. @findex TARGET_ASM_OUTPUT_MI_VCALL_THUNK @deftypefn {Target Hook} void TARGET_ASM_OUTPUT_MI_VCALL_THUNK (FILE *@var{file}, tree @var{thunk_fndecl}, HOST_WIDE_INT @var{delta}, int @var{vcall_offset}, tree @var{function}) A function like @code{TARGET_ASM_OUTPUT_MI_THUNK}, except that if -@var{vcall_offset} is non-zero, an additional adjustment should be made +@var{vcall_offset} is nonzero, an additional adjustment should be made after adding @code{delta}. In particular, if @var{p} is the adjusted pointer, the following adjustment should be made: @@ -6931,7 +6931,7 @@ When arbitrary sections are available, there are two variants, depending upon how the code in @file{crtstuff.c} is called. On systems that support a @dfn{.init} section which is executed at program startup, parts of @file{crtstuff.c} are compiled into that section. The -program is linked by the @code{gcc} driver like this: +program is linked by the @command{gcc} driver like this: @example ld -o @var{output_file} crti.o crtbegin.o @dots{} -lgcc crtend.o crtn.o @@ -9044,7 +9044,7 @@ structure, which are defined by the @code{IFCVT_EXTRA_FIELDS} macro. @findex IFCVT_EXTRA_FIELDS @item IFCVT_EXTRA_FIELDS If defined, it should expand to a set of field declarations that will be -added to the @code{struct ce_if_block} structure. These should be intialized +added to the @code{struct ce_if_block} structure. These should be initialized by the @code{IFCVT_INIT_EXTRA_FIELDS} macro. @end table @@ -9131,6 +9131,22 @@ Define this macro for systems like AIX, where the linker discards object files that are not referenced from @code{main} and uses export lists. +@findex MODIFY_JNI_METHOD_CALL +@item MODIFY_JNI_METHOD_CALL (@var{mdecl}) +Define this macro to a C expression representing a variant of the +method call @var{mdecl}, if Java Native Interface (JNI) methods +must be invoked differently from other methods on your target. +For example, on 32-bit Windows, JNI methods must be invoked using +the @code{stdcall} calling convention and this macro is then +defined as this expression: + +@smallexample +build_type_attribute_variant (@var{mdecl}, + build_tree_list + (get_identifier ("stdcall"), + NULL)) +@end smallexample + @end table @deftypefn {Target Hook} bool TARGET_CANNOT_MODIFY_JUMPS_P (void) |