diff options
Diffstat (limited to 'sysdeps/s390/multiarch/ifunc-resolve.h')
| -rw-r--r-- | sysdeps/s390/multiarch/ifunc-resolve.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sysdeps/s390/multiarch/ifunc-resolve.h b/sysdeps/s390/multiarch/ifunc-resolve.h index 491df68a61..e9fd90e26b 100644 --- a/sysdeps/s390/multiarch/ifunc-resolve.h +++ b/sysdeps/s390/multiarch/ifunc-resolve.h @@ -73,3 +73,22 @@ else \ return &__##FUNC##_default; \ } + +#define s390_vx_libc_ifunc(FUNC) \ + s390_vx_libc_ifunc2(FUNC, FUNC) + +#define s390_vx_libc_ifunc2(RESOLVERFUNC, FUNC) \ + /* Make the declarations of the optimized functions hidden in order + to prevent GOT slots being generated for them. */ \ + extern __typeof (FUNC) RESOLVERFUNC##_vx attribute_hidden; \ + extern __typeof (FUNC) RESOLVERFUNC##_c attribute_hidden; \ + extern void *__resolve_##RESOLVERFUNC (unsigned long int) __asm__ (#FUNC); \ + \ + void *__resolve_##RESOLVERFUNC (unsigned long int dl_hwcap) \ + { \ + if (dl_hwcap & HWCAP_S390_VX) \ + return &RESOLVERFUNC##_vx; \ + else \ + return &RESOLVERFUNC##_c; \ + } \ + __asm__ (".type " #FUNC ", %gnu_indirect_function"); |