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460ee50de0
glibc/sysdeps/x86
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Adhemerval Zanella 460ee50de0 x86_64: Add SSE sfp-exceptions 
The exported x86_64 fenv.h functions operate on both i387 and SSE (since
they should work on both float, double, and long double) while the
internal libc_fe* set either SSE (float, double, and float128) or
i387 (long double).

The libgcc __sfp_handle_exceptions (used on float128 implementation),
however, will set either SEE or i387 exception depending of the
exception to raise.  This broke the internal assumption of float128
where only SSE operations will be used.

This patch reimplements the libgcc __sfp_handle_exceptions to use only
SSE operations and sets libgcc to use it instead of its own
implementation.

And I think we should fix libgcc in a similar manner, since checking on
config/i386/64/sfp-machine.h it already only supports SSE rounding mode
and x86_64 ABI also expectes float128 to use SSE registers [1]
(although it is not clear on how future implementation might implement
it).

Checked on x86_64-linux-gnu.

[1] https://github.com/hjl-tools/x86-psABI/wiki/X86-psABI
2020-04-17 11:42:29 -03:00
..
bits x86: Remove <bits/select.h> and use the generic version 2020-02-09 14:02:27 +01:00
fpu x86_64: Add SSE sfp-exceptions 2020-04-17 11:42:29 -03:00
nptl Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
__longjmp_cancel.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
cacheinfo.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
cet-tunables.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
check-cet.awk Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
configure x86: Support IBT and SHSTK in Intel CET [BZ #21598] 2018-07-16 14:08:27 -07:00
configure.ac x86: Support IBT and SHSTK in Intel CET [BZ #21598] 2018-07-16 14:08:27 -07:00
cpu-features-offsets.sym x86: Cleanup cpu-features-offsets.sym 2018-08-03 06:42:09 -07:00
cpu-features.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
cpu-features.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
cpu-tunables.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-cet.c x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
dl-get-cpu-features.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-hwcap.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-procruntime.c x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
dl-prop.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-tunables.list Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
elf-initfini.h Introduce <elf-initfini.h> and ELF_INITFINI for all architectures 2020-02-18 15:12:25 +01:00
elide.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
float128-abi.h Add float128 support for x86_64, x86. 2017-06-26 22:02:24 +00:00
fpu_control.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hp-timing.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
init-arch.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
jmp_buf-ssp.sym x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libc-start.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libc-start.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
link_map.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
linkmap.h Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
longjmp.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Makeconfig Add _Float64x function aliases. 2017-11-27 14:16:47 +00:00
Makefile x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
string_private.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tininess.h Use sysdeps/x86/tininess.h for i386 and x86_64 2012-10-30 20:38:31 -07:00
tst-cet-legacy-1.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-1a.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-2.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-2a.c x86/CET: Add tests with legacy non-CET shared objects 2018-07-25 04:47:05 -07:00
tst-cet-legacy-3.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-4.c x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
tst-cet-legacy-4a.c x86/CET: Add tests with legacy non-CET shared objects 2018-07-25 04:47:05 -07:00
tst-cet-legacy-4b.c x86/CET: Add tests with legacy non-CET shared objects 2018-07-25 04:47:05 -07:00
tst-cet-legacy-4c.c x86/CET: Add tests with legacy non-CET shared objects 2018-07-25 04:47:05 -07:00
tst-cet-legacy-5.c x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
tst-cet-legacy-5a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-5b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-6.c x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
tst-cet-legacy-6a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-6b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-7.c x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
tst-cet-legacy-8.c x86: Remove ARCH_CET_LEGACY_BITMAP [BZ #25397] 2020-03-18 04:35:54 -07:00
tst-cet-legacy-mod-1.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-mod-2.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-mod-4.c x86/CET: Add tests with legacy non-CET shared objects 2018-07-25 04:47:05 -07:00
tst-cet-legacy-mod-5.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-mod-5a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-5b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-5c.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-mod-6.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-mod-6a.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-6b.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-cet-legacy-mod-6c.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-cet-legacy-mod-6d.c Call _dl_open_check after relocation [BZ #24259] 2019-07-01 12:23:22 -07:00
tst-get-cpu-features-static.c Add _dl_x86_cpu_features to rtld_global 2015-08-13 03:41:22 -07:00
tst-get-cpu-features.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Versions Add _dl_x86_cpu_features to rtld_global 2015-08-13 03:41:22 -07:00