[RFC 9/9] elf: Remove HWCAP_IMPORTANT
Stefan Liebler
stli@linux.ibm.com
Fri Jun 7 11:42:44 GMT 2024
Remove the definitions of HWCAP_IMPORTANT after removal of
LD_HWCAP_MASK / tunable glibc.cpu.hwcap_mask. There HWCAP_IMPORTANT
was used as default value.
---
elf/dl-diagnostics.c | 1 -
sysdeps/alpha/dl-procinfo.h | 3 ---
sysdeps/csky/dl-procinfo.h | 3 ---
sysdeps/generic/dl-procinfo.h | 3 ---
sysdeps/mips/dl-procinfo.h | 3 ---
sysdeps/powerpc/dl-procinfo.h | 3 ---
sysdeps/s390/dl-procinfo.h | 5 -----
sysdeps/sparc/dl-procinfo.h | 5 -----
sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h | 3 ---
sysdeps/unix/sysv/linux/arm/dl-procinfo.h | 2 --
sysdeps/x86/dl-hwcap.h | 13 -------------
11 files changed, 44 deletions(-)
diff --git a/elf/dl-diagnostics.c b/elf/dl-diagnostics.c
index e69463b2bd..c83e7770d8 100644
--- a/elf/dl-diagnostics.c
+++ b/elf/dl-diagnostics.c
@@ -233,7 +233,6 @@ _dl_print_diagnostics (char **environ)
{
_dl_diagnostics_print_labeled_string ("dl_dst_lib", DL_DST_LIB);
_dl_diagnostics_print_labeled_value ("dl_hwcap", GLRO (dl_hwcap));
- _dl_diagnostics_print_labeled_value ("dl_hwcap_important", HWCAP_IMPORTANT);
_dl_diagnostics_print_labeled_value ("dl_hwcap2", GLRO (dl_hwcap2));
_dl_diagnostics_print_labeled_value ("dl_hwcap3", GLRO (dl_hwcap3));
_dl_diagnostics_print_labeled_value ("dl_hwcap4", GLRO (dl_hwcap4));
diff --git a/sysdeps/alpha/dl-procinfo.h b/sysdeps/alpha/dl-procinfo.h
index a5264f9f2c..8d17d42ce2 100644
--- a/sysdeps/alpha/dl-procinfo.h
+++ b/sysdeps/alpha/dl-procinfo.h
@@ -27,9 +27,6 @@
/* There are no hardware capabilities defined. */
#define _dl_hwcap_string(idx) ""
-/* By default there is no important hardware capability. */
-#define HWCAP_IMPORTANT (0)
-
/* We don't have any hardware capabilities. */
#define _DL_HWCAP_COUNT 0
diff --git a/sysdeps/csky/dl-procinfo.h b/sysdeps/csky/dl-procinfo.h
index 3e7c63ee67..f5f6343cf6 100644
--- a/sysdeps/csky/dl-procinfo.h
+++ b/sysdeps/csky/dl-procinfo.h
@@ -28,9 +28,6 @@
/* There are no hardware capabilities defined. */
#define _dl_hwcap_string(idx) ""
-/* By default there is no important hardware capability. */
-#define HWCAP_IMPORTANT (0)
-
/* We don't have any hardware capabilities. */
#define _DL_HWCAP_COUNT 0
diff --git a/sysdeps/generic/dl-procinfo.h b/sysdeps/generic/dl-procinfo.h
index 1778fd1057..93edfc00cb 100644
--- a/sysdeps/generic/dl-procinfo.h
+++ b/sysdeps/generic/dl-procinfo.h
@@ -25,9 +25,6 @@
/* There are no hardware capabilities defined. */
#define _dl_hwcap_string(idx) ""
-/* By default there is no important hardware capability. */
-#define HWCAP_IMPORTANT (0)
-
/* We don't have any hardware capabilities. */
#define _DL_HWCAP_COUNT 0
diff --git a/sysdeps/mips/dl-procinfo.h b/sysdeps/mips/dl-procinfo.h
index 79c2acc388..af2616e1db 100644
--- a/sysdeps/mips/dl-procinfo.h
+++ b/sysdeps/mips/dl-procinfo.h
@@ -27,9 +27,6 @@
/* There are no hardware capabilities defined. */
#define _dl_hwcap_string(idx) ""
-/* By default there is no important hardware capability. */
-#define HWCAP_IMPORTANT (0)
-
/* We don't have any hardware capabilities. */
#define _DL_HWCAP_COUNT 0
diff --git a/sysdeps/powerpc/dl-procinfo.h b/sysdeps/powerpc/dl-procinfo.h
index 81eb9fba87..1e746a7ab4 100644
--- a/sysdeps/powerpc/dl-procinfo.h
+++ b/sysdeps/powerpc/dl-procinfo.h
@@ -34,9 +34,6 @@
/* AT_HWCAP4 feature strings follow the AT_HWCAP3 feature strings. */
#define _DL_HWCAP4_OFFSET (_DL_HWCAP3_OFFSET + _DL_HWCAP_SIZE)
-/* These bits influence library search. */
-#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \
- + PPC_FEATURE_HAS_DFP)
#define _DL_FIRST_PLATFORM 32
diff --git a/sysdeps/s390/dl-procinfo.h b/sysdeps/s390/dl-procinfo.h
index 7092ed1e2d..45dd11c189 100644
--- a/sysdeps/s390/dl-procinfo.h
+++ b/sysdeps/s390/dl-procinfo.h
@@ -59,11 +59,6 @@ enum
HWCAP_S390_SIE = 1 << 22,
};
-#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \
- | HWCAP_S390_EIMM | HWCAP_S390_DFP \
- | HWCAP_S390_VX | HWCAP_S390_VXE \
- | HWCAP_S390_VXRS_EXT2)
-
/* We cannot provide a general printing function. */
#define _dl_procinfo(type, word) -1
diff --git a/sysdeps/sparc/dl-procinfo.h b/sysdeps/sparc/dl-procinfo.h
index bd1cb65596..709178706c 100644
--- a/sysdeps/sparc/dl-procinfo.h
+++ b/sysdeps/sparc/dl-procinfo.h
@@ -52,9 +52,4 @@ _dl_hwcap_string (int idx)
return GLRO(dl_sparc_cap_flags)[idx];
};
-#include <bits/wordsize.h>
-#define HWCAP_IMPORTANT_V9 (__WORDSIZE == 64 ? 0 : HWCAP_SPARC_V9)
-#define HWCAP_IMPORTANT (HWCAP_IMPORTANT_V9 | HWCAP_SPARC_ULTRA3 \
- | HWCAP_SPARC_BLKINIT | HWCAP_SPARC_N2)
-
#endif /* dl-procinfo.h */
diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h
index 17893a5225..b85d4ad8a3 100644
--- a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h
@@ -27,9 +27,6 @@
/* We cannot provide a general printing function. */
#define _dl_procinfo(type, word) -1
-/* No additional library search paths. */
-#define HWCAP_IMPORTANT HWCAP_ATOMICS
-
static inline const char *
__attribute__ ((unused))
_dl_hwcap_string (int idx)
diff --git a/sysdeps/unix/sysv/linux/arm/dl-procinfo.h b/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
index 85422b8edd..7d26216718 100644
--- a/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
@@ -70,6 +70,4 @@ _dl_procinfo (unsigned int type, unsigned long int word)
return 0;
}
-#define HWCAP_IMPORTANT (HWCAP_ARM_VFP | HWCAP_ARM_NEON)
-
#endif /* dl-procinfo.h */
diff --git a/sysdeps/x86/dl-hwcap.h b/sysdeps/x86/dl-hwcap.h
index 246fdcd831..325f1c467c 100644
--- a/sysdeps/x86/dl-hwcap.h
+++ b/sysdeps/x86/dl-hwcap.h
@@ -18,19 +18,6 @@
#ifndef _DL_HWCAP_H
#define _DL_HWCAP_H
-#if IS_IN (ldconfig)
-/* Since ldconfig processes both i386 and x86-64 libraries, it needs
- to cover all hardware capabilities. */
-# define HWCAP_IMPORTANT \
- (HWCAP_X86_SSE2 | HWCAP_X86_64 | HWCAP_X86_AVX512_1)
-#elif defined __x86_64__
-/* For 64 bit, only cover x86-64 capabilities. */
-# define HWCAP_IMPORTANT (HWCAP_X86_64 | HWCAP_X86_AVX512_1)
-#else
-/* For 32 bit, only cover i586, i686 and SSE2. */
-# define HWCAP_IMPORTANT (HWCAP_X86_SSE2)
-#endif
-
enum
{
HWCAP_X86_SSE2 = 1 << 0,
--
2.45.0
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