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author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:18 +0200 |
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committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:18 +0200 |
commit | 31556246c3ac168a2dfec8f9036d913765bbb73d (patch) | |
tree | 217d34f9332e91ba25f71d3725e752a4bf69ef0e /sysdeps/s390/s390-32/memcpy.S | |
parent | 5d96fe8c0dc3450bafe6c2aae2dabc76819df3e0 (diff) | |
download | glibc-31556246c3ac168a2dfec8f9036d913765bbb73d.tar.gz glibc-31556246c3ac168a2dfec8f9036d913765bbb73d.tar.xz glibc-31556246c3ac168a2dfec8f9036d913765bbb73d.zip |
S390: Refactor ifunc implementations and enable ifunc-test-framework.
On s390 all ifunc resolvers were implemented in multiarch/ifunc-resolve.c. The resulting single object files has undefined references to all ifunc-functions. This patch introduces one multiarch/<func>.c file for each of memcpy, memcmp and memset with the function specific ifunc resolver. The different function implementations are now implemented in multiarch/<func>-s390x.S (moved from multiarch/<func>.S). The new multiarch/ifunc-resolve.h file contains the ifunc-resolver macro and other helper-macros. They are merged and are now used in common for 32/64bit. Therefore the __<func>_g5/__<func>_z900 functions were renamed to __<func>_default. This patch also enables testing the ifunc implementations by implementing the function __libc_ifunc_impl_list. It uses the helper-macros of ifunc-resolve.h. ChangeLog: * sysdeps/s390/s390-32/multiarch/Makefile (sysdep_routines): Remove ifunc-resolve, add memset-s390, memcpy-s390, memcmp-s390. * sysdeps/s390/s390-32/multiarch/ifunc-resolve.c: Delete File. * sysdeps/s390/s390-32/multiarch/memcmp.S: Move to ... * sysdeps/s390/s390-32/multiarch/memcmp-s390.S: ... here. (memcmp, bcmp): Use __memcmp_default as alias source. * sysdeps/s390/s390-32/multiarch/memcmp.c: New File. * sysdeps/s390/s390-32/memcmp.S (__memcmp_g5): Rename to __memcmp_default. * sysdeps/s390/s390-32/multiarch/memcpy.S: Move to ... * sysdeps/s390/s390-32/multiarch/memcpy-s390.S: ... here. (memcpy): Use __memcpy_default as alias source. * sysdeps/s390/s390-32/multiarch/memcpy.c: New File. * sysdeps/s390/s390-32/memcpy.S (__memcpy_g5): Rename to __memcpy_default. * sysdeps/s390/s390-32/multiarch/memset.S: Move to ... * sysdeps/s390/s390-32/multiarch/memset-s390.S: ... here. (memset): Use __memset_default as alias source. * sysdeps/s390/s390-32/multiarch/memset.c: New File. * sysdeps/s390/s390-32/memset.S (__memset_g5): Rename to __memset_default. * sysdeps/s390/s390-64/multiarch/Makefile (sysdep_routines): Remove ifunc-resolve, add memset-s390x, memcpy-s390x, memcmp-s390x. * sysdeps/s390/s390-64/multiarch/ifunc-resolve.c: Delete File. * sysdeps/s390/s390-64/multiarch/memcmp.S: Move to ... * sysdeps/s390/s390-64/multiarch/memcmp-s390x.S: ... here. (memcmp, bcmp): Use __memcmp_default as alias source. * sysdeps/s390/s390-64/multiarch/memcmp.c: New File. * sysdeps/s390/s390-64/memcmp.S (__memcmp_z900): Rename to __memcmp_default. * sysdeps/s390/s390-64/multiarch/memcpy.S: Move to ... * sysdeps/s390/s390-64/multiarch/memcpy-s390x.S: ... here. (memcpy): Use __memcpy_default as alias source. * sysdeps/s390/s390-64/multiarch/memcpy.c: New File. * sysdeps/s390/s390-64/memcpy.S (__memcpy_z900): Rename to __memcpy_default. * sysdeps/s390/s390-64/multiarch/memset.S: Move to ... * sysdeps/s390/s390-64/multiarch/memset-s390x.S: ... here. (memset): Use __memset_default as alias source. * sysdeps/s390/s390-64/multiarch/memset.c: New File. * sysdeps/s390/s390-64/memset.S (__memset_z900): Rename to __memset_default. * sysdeps/s390/multiarch/ifunc-resolve.h: New File. * sysdeps/s390/multiarch/ifunc-impl-list.c: New File.
Diffstat (limited to 'sysdeps/s390/s390-32/memcpy.S')
-rw-r--r-- | sysdeps/s390/s390-32/memcpy.S | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/sysdeps/s390/s390-32/memcpy.S b/sysdeps/s390/s390-32/memcpy.S index f26fd00ff8..e2a1d98b0f 100644 --- a/sysdeps/s390/s390-32/memcpy.S +++ b/sysdeps/s390/s390-32/memcpy.S @@ -26,41 +26,41 @@ %r4 = number of bytes to copy. */ #ifdef USE_MULTIARCH -ENTRY(__memcpy_g5) +ENTRY(__memcpy_default) #else ENTRY(memcpy) #endif .machine "g5" - st %r13,52(%r15) - .cfi_offset 13, -44 - basr %r13,0 + st %r13,52(%r15) + .cfi_offset 13, -44 + basr %r13,0 .L_G5_16: - ltr %r4,%r4 - je .L_G5_4 - ahi %r4,-1 - lr %r5,%r4 - srl %r5,8 - ltr %r5,%r5 - lr %r1,%r2 - jne .L_G5_12 - ex %r4,.L_G5_17-.L_G5_16(%r13) + ltr %r4,%r4 + je .L_G5_4 + ahi %r4,-1 + lr %r5,%r4 + srl %r5,8 + ltr %r5,%r5 + lr %r1,%r2 + jne .L_G5_12 + ex %r4,.L_G5_17-.L_G5_16(%r13) .L_G5_4: - l %r13,52(%r15) - br %r14 + l %r13,52(%r15) + br %r14 .L_G5_13: - chi %r5,4096 # Switch to mvcle for copies >1MB - jh __memcpy_mvcle + chi %r5,4096 # Switch to mvcle for copies >1MB + jh __memcpy_mvcle .L_G5_12: - mvc 0(256,%r1),0(%r3) - la %r1,256(%r1) - la %r3,256(%r3) - brct %r5,.L_G5_12 - ex %r4,.L_G5_17-.L_G5_16(%r13) - j .L_G5_4 + mvc 0(256,%r1),0(%r3) + la %r1,256(%r1) + la %r3,256(%r3) + brct %r5,.L_G5_12 + ex %r4,.L_G5_17-.L_G5_16(%r13) + j .L_G5_4 .L_G5_17: - mvc 0(1,%r1),0(%r3) + mvc 0(1,%r1),0(%r3) #ifdef USE_MULTIARCH -END(__memcpy_g5) +END(__memcpy_default) #else END(memcpy) libc_hidden_builtin_def (memcpy) |