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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:19 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:19 +0200 |
| commit | 4f0a1cea34c05fb2acc16f1a2d291f53230eb4fb (patch) | |
| tree | 474a3cf443a605bae96d09127300e4f7204d78bc /ChangeLog | |
| parent | a1b0488fc9df3d895a2e5eefbcd348d3f7fe0e52 (diff) | |
| download | glibc-4f0a1cea34c05fb2acc16f1a2d291f53230eb4fb.tar.gz glibc-4f0a1cea34c05fb2acc16f1a2d291f53230eb4fb.tar.xz glibc-4f0a1cea34c05fb2acc16f1a2d291f53230eb4fb.zip | |
S390: configure check for vector instruction support in assembler.
The S390 specific test checks if the assembler has support for the new z13 vector instructions by compiling a vector instruction. The .machine and .machinemode directives are needed to compile the vector instruction without -march=z13 option on 31/64 bit. On success the macro HAVE_S390_VX_ASM_SUPPORT is defined. This macro is used to determine if the optimized functions can be build without compile errors. If the used assembler lacks vector support, then a warning is dumped while configuring and only the common code functions are build. The z13 instruction support was introduced in "[Committed] S/390: Add support for IBM z13." (https://sourceware.org/ml/binutils/2015-01/msg00197.html) ChangeLog: * config.h.in (HAVE_S390_VX_ASM_SUPPORT): New macro undefine. * sysdeps/s390/configure.ac: Add test for S390 vector instruction assembler support. * sysdeps/s390/configure: Regenerated.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index c648db65fd..19d089acc8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,12 @@ 2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com> + * config.h.in (HAVE_S390_VX_ASM_SUPPORT): New macro undefine. + * sysdeps/s390/configure.ac: Add test for S390 vector instruction + assembler support. + * sysdeps/s390/configure: Regenerated. + +2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com> + * sysdeps/s390/dl-procinfo.c (_dl_s390_cap_flags): Add z13. * sysdeps/s390/dl-procinfo.h (_DL_PLATFORMS_COUNT): Increased. |