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| author | Richard Earnshaw <rearnsha@arm.com> | 2017-12-20 10:30:00 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2017-12-20 10:30:00 +0000 |
| commit | 87fd6bde4c3a6772dca6920c6bd2f849442eea2f (patch) | |
| tree | ea1be43e13cae7ddbb54a32e70ac9e455c37b2ed | |
| parent | 0e0cefc62e713f0b419bca0c8a931c9c912e214e (diff) | |
| download | gcc-87fd6bde4c3a6772dca6920c6bd2f849442eea2f.zip gcc-87fd6bde4c3a6772dca6920c6bd2f849442eea2f.tar.gz gcc-87fd6bde4c3a6772dca6920c6bd2f849442eea2f.tar.bz2 | |
[arm] PR target/83105: Minor change of default CPU for arm-linux-gnueabi
When GCC for ARM/linux is configured with --with-float=hard, or
--with-float=softfp the compiler will now die when trying to build the
support libraries because the baseline architecture is too old to
support VFP (older versions of GCC just emitted the VFP instructions
anyway, even though they wouldn't run on that version of the
architecture; but we're now more prickly about it).
This patch fixed the problem by raising the default architecture
(actually the default CPU) to ARMv5te (ARM10e) when we need to generate
HW floating-point code.
PR target/83105
* config.gcc (arm*-*-linux*): When configured with --with-float=hard
or --with-float=softfp, set the default CPU to arm10e.
From-SVN: r255858
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config.gcc | 7 |
2 files changed, 12 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3fac117..3982478 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2017-12-20 Richard Earnshaw <rearnsha@arm.com> + + PR target/83105 + * config.gcc (arm*-*-linux*): When configured with --with-float=hard + or --with-float=softfp, set the default CPU to arm10e. + 2017-12-20 Eric Botcazou <ebotcazou@adacore.com> * config/visium/constraints.md (J, K, L): Use IN_RANGE macro. diff --git a/gcc/config.gcc b/gcc/config.gcc index 4c2b382..1a0d676 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -1134,7 +1134,12 @@ arm*-*-linux-*) # ARM GNU/Linux with ELF esac tmake_file="${tmake_file} arm/t-arm arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi" tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h arm/aout.h vxworks-dummy.h arm/arm.h" - target_cpu_cname="arm10tdmi" + # Generation of floating-point instructions requires at least ARMv5te. + if [ "$with_float" = "hard" -o "$with_float" = "softfp" ] ; then + target_cpu_cname="arm10e" + else + target_cpu_cname="arm10tdmi" + fi # Define multilib configuration for arm-linux-androideabi. case ${target} in *-androideabi) |