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author | Manjunath Matti <mmatti@linux.ibm.com> | 2024-03-19 15:29:48 -0500 |
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committer | Peter Bergner <bergner@linux.ibm.com> | 2024-03-19 17:19:27 -0500 |
commit | 3ab9b88e2ac91062b6d493fe32bd101a55006c6a (patch) | |
tree | a13cf4a7a73bb6f77748d2bfefedce381591be56 /sysdeps/unix/sysv/linux/dl-parse_auxv.h | |
parent | 3d53d18fc71c5d9ef4773b8bce04d54b80181926 (diff) | |
download | glibc-3ab9b88e2ac91062b6d493fe32bd101a55006c6a.tar.gz glibc-3ab9b88e2ac91062b6d493fe32bd101a55006c6a.tar.xz glibc-3ab9b88e2ac91062b6d493fe32bd101a55006c6a.zip |
powerpc: Add HWCAP3/HWCAP4 data to TCB for Power Architecture.
This patch adds a new feature for powerpc. In order to get faster access to the HWCAP3/HWCAP4 masks, similar to HWCAP/HWCAP2 (i.e. for implementing __builtin_cpu_supports() in GCC) without the overhead of reading them from the auxiliary vector, we now reserve space for them in the TCB. This is an ABI change for GLIBC 2.39. Suggested-by: Peter Bergner <bergner@linux.ibm.com> Reviewed-by: Peter Bergner <bergner@linux.ibm.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/dl-parse_auxv.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/dl-parse_auxv.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-parse_auxv.h b/sysdeps/unix/sysv/linux/dl-parse_auxv.h index e3d758b163..ea2a58ecb1 100644 --- a/sysdeps/unix/sysv/linux/dl-parse_auxv.h +++ b/sysdeps/unix/sysv/linux/dl-parse_auxv.h @@ -47,6 +47,8 @@ void _dl_parse_auxv (ElfW(auxv_t) *av, dl_parse_auxv_t auxv_values) GLRO(dl_platform) = (void *) auxv_values[AT_PLATFORM]; GLRO(dl_hwcap) = auxv_values[AT_HWCAP]; GLRO(dl_hwcap2) = auxv_values[AT_HWCAP2]; + GLRO(dl_hwcap3) = auxv_values[AT_HWCAP3]; + GLRO(dl_hwcap4) = auxv_values[AT_HWCAP4]; GLRO(dl_clktck) = auxv_values[AT_CLKTCK]; GLRO(dl_fpu_control) = auxv_values[AT_FPUCW]; _dl_random = (void *) auxv_values[AT_RANDOM]; |