diff options
Diffstat (limited to 'gcc/gcc.texi')
| -rw-r--r-- | gcc/gcc.texi | 44 |
1 files changed, 5 insertions, 39 deletions
diff --git a/gcc/gcc.texi b/gcc/gcc.texi index a2b90f1..b0060c9 100644 --- a/gcc/gcc.texi +++ b/gcc/gcc.texi @@ -3445,18 +3445,11 @@ with @samp{-msoft-float}. Some standard parts of the C library, such as @code{bcopy} or @code{memcpy}, are also called automatically. The usual function call interface is used for calling the library routines. -These library routines should be defined in the library @file{libgcc.a}, -which GCC automatically searches whenever it links a program. On -machines that have multiply and divide instructions, if hardware -floating point is in use, normally @file{libgcc.a} is not needed, but it -is searched just in case. - -Each arithmetic function is defined in @file{libgcc1.c} to use the -corresponding C arithmetic operator. As long as the file is compiled -with another C compiler, which supports all the C arithmetic operators, -this file will work portably. However, @file{libgcc1.c} does not work if -compiled with GCC, because each arithmetic function would compile -into a call to itself! +Some of these routines can be defined in mostly machine-independent C; +they appear in @file{libgcc2.c}. Others must be hand-written in +assembly language for each processor. Wherever they are defined, they +are compiled into the support library, @file{libgcc.a}, which is +automatically searched when you link programs with GCC. @end ifset @ifset INTERNALS @@ -4201,19 +4194,6 @@ The target makefile fragment, @file{t-@var{target}}, defines special target dependent variables and targets used in the @file{Makefile}: @table @code -@findex LIBGCC1 -@item LIBGCC1 -The rule to use to build @file{libgcc1.a}. -If your target does not need to use the functions in @file{libgcc1.a}, -set this to empty. -@xref{Interface}. - -@findex CROSS_LIBGCC1 -@item CROSS_LIBGCC1 -The rule to use to build @file{libgcc1.a} when building a cross -compiler. If your target does not need to use the functions in -@file{libgcc1.a}, set this to empty. @xref{Cross Runtime}. - @findex LIBGCC2_CFLAGS @item LIBGCC2_CFLAGS Compiler flags to use when compiling @file{libgcc2.c}. @@ -4336,20 +4316,6 @@ dependent variables and targets used in the @file{Makefile}: @item CC The compiler to use when building the first stage. -@findex CLIB -@item CLIB -Additional host libraries to link with. - -@findex OLDCC -@item OLDCC -The compiler to use when building @file{libgcc1.a} for a native -compilation. - -@findex OLDAR -@item OLDAR -The version of @code{ar} to use when building @file{libgcc1.a} for a native -compilation. - @findex INSTALL @item INSTALL The install program to use. |