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install.texi: Note that ARM toolchains need binutils 2.13 or newer.

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* doc/install.texi: Note that ARM toolchains need binutils 2.13 or newer.
* config/arm/elf.h (SUBTARGET_ASM_FLOAT_SPEC): Pass -mfpu=softfpa instead of -mno-fpu.
* config/arm/semi.h (ASM_SPEC): Likewise.
* config/arm/xscale-elf.h (SUBTARGET_EXTRA_ASM_SPEC): Likewise,
  but only if -msoft-float is specified pass.  Otherwise pass -mfpu=softvfp.

From-SVN: r65398
This commit is contained in:
Nick Clifton 2003-04-09 15:14:23 +00:00 committed by Nick Clifton
parent 988bb94bb5
commit 66d6bf1fcc
5 changed files with 44 additions and 4 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2003-04-09 Nick Clifton <nickc@redhat.com>
* doc/install.texi: Note that ARM toolchains need binutils 2.13 or
newer.
* config/arm/elf.h (SUBTARGET_ASM_FLOAT_SPEC): Pass -mfpu=softfpa
instead of -mno-fpu.
* config/arm/semi.h (ASM_SPEC): Likewise.
* config/arm/xscale-elf.h (SUBTARGET_EXTRA_ASM_SPEC): Likewise,
but only if -msoft-float is specified pass. Otherwise pass
-mfpu=softvfp.
2003-04-09 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
* function.c (purge_addressof): Use free_INSN_LIST_node instead of

2
gcc/config/arm/elf.h
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@ -46,7 +46,7 @@
#ifndef SUBTARGET_ASM_FLOAT_SPEC
#define SUBTARGET_ASM_FLOAT_SPEC "\
%{mapcs-float:-mfloat} %{msoft-float:-mno-fpu}"
%{mapcs-float:-mfloat} %{msoft-float:-mfpu=softfpa}"
#endif
#ifndef ASM_SPEC

2
gcc/config/arm/semi.h
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@ -64,7 +64,7 @@
%{mcpu=*:-mcpu=%*} \
%{march=*:-march=%*} \
%{mapcs-float:-mfloat} \
%{msoft-float:-mno-fpu} \
%{msoft-float:-mfpu=softfpa} \
%{mthumb-interwork:-mthumb-interwork} \
%(subtarget_extra_asm_spec)"
#endif

25
gcc/config/arm/xscale-elf.h
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@ -28,7 +28,30 @@
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_xscale
#endif
#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} %{!mhard-float:-mno-fpu}"
/* Note - there are three possible -mfpu= arguments that can be passed to
the assembler:
-mfpu=softvfp This is the default. It indicates thats doubles are
stored in a format compatable with the VFP
specification. This is the newer double format, whereby
the endian-ness of the doubles matches the endian-ness
of the memory architecture.
-mfpu=fpa This is when -mhard-float is specified.
[It is not known if any XScale's have been made with
hardware floating point support, but nevertheless this
is what happens].
-mfpu=softfpa This is when -msoft-float is specified.
This is the normal beahviour of other arm configurations,
which for backwards compatability purposes default to
supporting the old FPA format which was always big
endian, regardless of the endian-ness of the memory
system. */
#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
%{mhard-float:-mfpu=fpa} \
%{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
#ifndef MULTILIB_DEFAULTS
#define MULTILIB_DEFAULTS \

8
gcc/doc/install.texi
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@ -1918,13 +1918,19 @@ configuration.
@end html
@heading @anchor{arm-*-elf}arm-*-elf
This configuration is intended for embedded systems.
We require GNU binutils 2.13 or newer.
@html
<hr />
@end html
@heading @anchor{arm*-*-linux-gnu}arm*-*-linux-gnu
We require GNU binutils 2.13 or newer.
We require GNU binutils 2.10 or newer.
@html
<hr />
@end html
@heading @anchor{xscale-*-elf}xscale-*-elf
We require GNU binutils 2.13 or newer.
@html
<hr />