[v5] String: Add support for __memcmpeq() ABI on all targets

Message ID	20210928165054.2320875-1-goldstein.w.n@gmail.com
State	New
Headers	show Return-Path: <libc-alpha-bounces+incoming=patchwork.ozlabs.org@sourceware.org> DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org ABD0E3858439 To: libc-alpha@sourceware.org Subject: [PATCH v5] String: Add support for __memcmpeq() ABI on all targets Date: Tue, 28 Sep 2021 11:50:54 -0500 Message-Id: <20210928165054.2320875-1-goldstein.w.n@gmail.com> In-Reply-To: <20210927203827.2852935-1-goldstein.w.n@gmail.com> References: <20210927203827.2852935-1-goldstein.w.n@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: list From: Noah Goldstein via Libc-alpha <libc-alpha@sourceware.org> Reply-To: Noah Goldstein <goldstein.w.n@gmail.com> Errors-To: libc-alpha-bounces+incoming=patchwork.ozlabs.org@sourceware.org Sender: "Libc-alpha" <libc-alpha-bounces+incoming=patchwork.ozlabs.org@sourceware.org>
Series	[v5] String: Add support for __memcmpeq() ABI on all targets \| expand [v5] String: Add support for __memcmpeq() ABI on all targets

diff --git a/string/Versions b/string/Versions index 298ecd401a..864c4cf7a4 100644 --- a/string/Versions +++ b/string/Versions @@ -89,4 +89,7 @@ libc { sigdescr_np; sigabbrev_np; strerrordesc_np; strerrorname_np; } + GLIBC_2.35 { + __memcmpeq; + } } diff --git a/string/memcmp.c b/string/memcmp.c index 9b46d7a905..550b7bb69b 100644 --- a/string/memcmp.c +++ b/string/memcmp.c @@ -358,4 +358,6 @@ libc_hidden_builtin_def(memcmp) #ifdef weak_alias # undef bcmp weak_alias (memcmp, bcmp) +#undef __memcmpeq +weak_alias (memcmp, __memcmpeq) #endif diff --git a/string/string.h b/string/string.h index 04e1b7067d..d965ca0eeb 100644 --- a/string/string.h +++ b/string/string.h @@ -64,6 +64,19 @@ extern void *memset (void *__s, int __c, size_t __n) __THROW __nonnull ((1)); extern int memcmp (const void *__s1, const void *__s2, size_t __n) __THROW __attribute_pure__ __nonnull ((1, 2)); +/* Compare N bytes of S1 and S2. Return zero if S1 and S2 are equals. + Return some non-zero value otherwise. + + Essentially __memcmpeq has the exact same semantics as memcmp + except the return value is less constrained. memcmp is always a + correct implementation of __memcmpeq. As well !!memcmp, -memcmp, + or bcmp are correct implementations. + + Used by compilers when memcmp return is only used for its bolean + value. */ +extern int __memcmpeq (const void *__s1, const void *__s2, size_t __n) + __THROW __attribute_pure__ __nonnull ((1, 2)); + /* Search N bytes of S for C. */ #ifdef __CORRECT_ISO_CPP_STRING_H_PROTO extern "C++" diff --git a/string/tester.c b/string/tester.c index 778160ae6e..605b3f00f9 100644 --- a/string/tester.c +++ b/string/tester.c @@ -1449,6 +1449,19 @@ test_bcmp (void) check(bcmp("abc", "def", 0) == 0, 8); /* Zero count. */ } +static void +test_memcmpeq (void) +{ + it = "__memcmpeq"; + check (__memcmpeq ("a", "a", 1) == 0, 1); /* Identity. */ + check (__memcmpeq ("abc", "abc", 3) == 0, 2); /* Multicharacter. */ + check (__memcmpeq ("abcd", "abce", 4) != 0, 3); /* Honestly unequal. */ + check (__memcmpeq ("abce", "abcd", 4) != 0, 4); + check (__memcmpeq ("alph", "beta", 4) != 0, 5); + check (__memcmpeq ("abce", "abcd", 3) == 0, 6); /* Count limited. */ + check (__memcmpeq ("abc", "def", 0) == 0, 8); /* Zero count. */ +} + static void test_strerror (void) { @@ -1611,6 +1624,9 @@ main (void) /* bcmp - somewhat like memcmp. */ test_bcmp (); + /* __memcmpeq - somewhat like memcmp. */ + test_memcmpeq (); + /* strndup. */ test_strndup (); diff --git a/sysdeps/aarch64/memcmp.S b/sysdeps/aarch64/memcmp.S index c1937f6f5c..bc932eff2a 100644 --- a/sysdeps/aarch64/memcmp.S +++ b/sysdeps/aarch64/memcmp.S @@ -177,4 +177,6 @@ L(ret_0): END (memcmp) #undef bcmp weak_alias (memcmp, bcmp) +#undef __memcmpeq +weak_alias (memcmp, __memcmpeq) libc_hidden_builtin_def (memcmp) diff --git a/sysdeps/csky/abiv2/memcmp.S b/sysdeps/csky/abiv2/memcmp.S index 1560387618..d61fca0f29 100644 --- a/sysdeps/csky/abiv2/memcmp.S +++ b/sysdeps/csky/abiv2/memcmp.S @@ -138,5 +138,6 @@ ENTRY (memcmp) br .L_s1_aligned END (memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) libc_hidden_def (memcmp) .weak memcmp diff --git a/sysdeps/i386/i686/memcmp.S b/sysdeps/i386/i686/memcmp.S index b26b124fad..0194f8deab 100644 --- a/sysdeps/i386/i686/memcmp.S +++ b/sysdeps/i386/i686/memcmp.S @@ -405,4 +405,6 @@ L(table_32bytes) : #undef bcmp weak_alias (memcmp, bcmp) +#undef __memcmpeq +weak_alias (memcmp, __memcmpeq) libc_hidden_builtin_def (memcmp) diff --git a/sysdeps/i386/i686/multiarch/memcmp.c b/sysdeps/i386/i686/multiarch/memcmp.c index 6e058a8857..956fc8e601 100644 --- a/sysdeps/i386/i686/multiarch/memcmp.c +++ b/sysdeps/i386/i686/multiarch/memcmp.c @@ -29,4 +29,5 @@ libc_ifunc_redirected (__redirect_memcmp, memcmp, IFUNC_SELECTOR ()); weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) #endif diff --git a/sysdeps/i386/memcmp.S b/sysdeps/i386/memcmp.S index 1f212b0f6d..18e225f963 100644 --- a/sysdeps/i386/memcmp.S +++ b/sysdeps/i386/memcmp.S @@ -70,4 +70,6 @@ END (memcmp) #undef bcmp weak_alias (memcmp, bcmp) +#undef __memcmpeq +weak_alias (memcmp, __memcmpeq) libc_hidden_builtin_def (memcmp) diff --git a/sysdeps/ia64/memcmp.S b/sysdeps/ia64/memcmp.S index 97539c23fd..4488e0eba4 100644 --- a/sysdeps/ia64/memcmp.S +++ b/sysdeps/ia64/memcmp.S @@ -160,4 +160,5 @@ ENTRY(memcmp) END(memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) libc_hidden_builtin_def (memcmp) diff --git a/sysdeps/mach/hurd/i386/libc.abilist b/sysdeps/mach/hurd/i386/libc.abilist index c5da10a0cd..e849d6fa35 100644 --- a/sysdeps/mach/hurd/i386/libc.abilist +++ b/sysdeps/mach/hurd/i386/libc.abilist @@ -2285,6 +2285,7 @@ GLIBC_2.34 res_send F GLIBC_2.34 shm_open F GLIBC_2.34 shm_unlink F GLIBC_2.34 timespec_getres F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/powerpc/powerpc32/405/memcmp.S b/sysdeps/powerpc/powerpc32/405/memcmp.S index 6a6a54d90f..e8b1b6c9bd 100644 --- a/sysdeps/powerpc/powerpc32/405/memcmp.S +++ b/sysdeps/powerpc/powerpc32/405/memcmp.S @@ -126,3 +126,4 @@ L(st2): END (memcmp) libc_hidden_builtin_def (memcmp) weak_alias (memcmp,bcmp) +weak_alias (memcmp, __memcmpeq) diff --git a/sysdeps/powerpc/powerpc32/power4/memcmp.S b/sysdeps/powerpc/powerpc32/power4/memcmp.S index 814d2f211d..e4dde875bb 100644 --- a/sysdeps/powerpc/powerpc32/power4/memcmp.S +++ b/sysdeps/powerpc/powerpc32/power4/memcmp.S @@ -1373,3 +1373,4 @@ END (memcmp) libc_hidden_builtin_def (memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) diff --git a/sysdeps/powerpc/powerpc32/power7/memcmp.S b/sysdeps/powerpc/powerpc32/power7/memcmp.S index 8a19953e2d..e60a62fc86 100644 --- a/sysdeps/powerpc/powerpc32/power7/memcmp.S +++ b/sysdeps/powerpc/powerpc32/power7/memcmp.S @@ -1373,3 +1373,4 @@ END (memcmp) libc_hidden_builtin_def (memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) diff --git a/sysdeps/powerpc/powerpc64/le/power10/memcmp.S b/sysdeps/powerpc/powerpc64/le/power10/memcmp.S index 52f244e7e7..c7fe8047ca 100644 --- a/sysdeps/powerpc/powerpc64/le/power10/memcmp.S +++ b/sysdeps/powerpc/powerpc64/le/power10/memcmp.S @@ -177,3 +177,4 @@ L(tail8): END (MEMCMP) libc_hidden_builtin_def (memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) diff --git a/sysdeps/powerpc/powerpc64/power4/memcmp.S b/sysdeps/powerpc/powerpc64/power4/memcmp.S index dc1be3a0d8..4ab4a90496 100644 --- a/sysdeps/powerpc/powerpc64/power4/memcmp.S +++ b/sysdeps/powerpc/powerpc64/power4/memcmp.S @@ -1374,3 +1374,4 @@ L(duzeroLength): END (MEMCMP) libc_hidden_builtin_def (memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) diff --git a/sysdeps/powerpc/powerpc64/power7/memcmp.S b/sysdeps/powerpc/powerpc64/power7/memcmp.S index bc034a55bc..b541978b5f 100644 --- a/sysdeps/powerpc/powerpc64/power7/memcmp.S +++ b/sysdeps/powerpc/powerpc64/power7/memcmp.S @@ -1059,3 +1059,4 @@ L(duzeroLength): END (MEMCMP) libc_hidden_builtin_def (memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) diff --git a/sysdeps/powerpc/powerpc64/power8/memcmp.S b/sysdeps/powerpc/powerpc64/power8/memcmp.S index b676b09a9b..d4f84a5b6f 100644 --- a/sysdeps/powerpc/powerpc64/power8/memcmp.S +++ b/sysdeps/powerpc/powerpc64/power8/memcmp.S @@ -1442,3 +1442,4 @@ L(duzeroLength): END (MEMCMP) libc_hidden_builtin_def (memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) diff --git a/sysdeps/s390/memcmp-z900.S b/sysdeps/s390/memcmp-z900.S index 995d52e47d..0942d32814 100644 --- a/sysdeps/s390/memcmp-z900.S +++ b/sysdeps/s390/memcmp-z900.S @@ -164,6 +164,7 @@ END(MEMCMP_Z196) Otherwise see sysdeps/s390/memcmp.c. */ strong_alias (MEMCMP_DEFAULT, memcmp) weak_alias (memcmp, bcmp) +weak_alias (memcmp, __memcmpeq) #endif #if defined SHARED && IS_IN (libc) diff --git a/sysdeps/s390/memcmp.c b/sysdeps/s390/memcmp.c index 0b4e9da717..475fc45d3a 100644 --- a/sysdeps/s390/memcmp.c +++ b/sysdeps/s390/memcmp.c @@ -46,4 +46,5 @@ s390_libc_ifunc_expr (__redirect_memcmp, memcmp, }) ) weak_alias (memcmp, bcmp); +weak_alias (memcmp, __memcmpeq) #endif diff --git a/sysdeps/sparc/sparc64/memcmp.S b/sysdeps/sparc/sparc64/memcmp.S index d8d9ff9b24..edcc19915a 100644 --- a/sysdeps/sparc/sparc64/memcmp.S +++ b/sysdeps/sparc/sparc64/memcmp.S @@ -137,4 +137,6 @@ END(memcmp) #undef bcmp weak_alias (memcmp, bcmp) +#undef __memcmpeq +weak_alias (memcmp, __memcmpeq) libc_hidden_builtin_def (memcmp) diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist index 21a2e50a88..f227ae6cee 100644 --- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist +++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist @@ -2612,3 +2612,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist index a201fd69ba..0ccc3fc73e 100644 --- a/sysdeps/unix/sysv/linux/alpha/libc.abilist +++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist @@ -2709,6 +2709,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist index 2611436937..fd80704787 100644 --- a/sysdeps/unix/sysv/linux/arc/libc.abilist +++ b/sysdeps/unix/sysv/linux/arc/libc.abilist @@ -2373,3 +2373,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist index a426241965..2ae6c58b8a 100644 --- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist @@ -491,6 +491,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _Exit F GLIBC_2.4 _IO_2_1_stderr_ D 0xa0 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0 diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist index 02f80418cc..fcfd1e8594 100644 --- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist @@ -488,6 +488,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _Exit F GLIBC_2.4 _IO_2_1_stderr_ D 0xa0 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0 diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist index b7676eb372..ba034b8541 100644 --- a/sysdeps/unix/sysv/linux/csky/libc.abilist +++ b/sysdeps/unix/sysv/linux/csky/libc.abilist @@ -2647,3 +2647,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist index f6965c9d95..b7460bec8a 100644 --- a/sysdeps/unix/sysv/linux/hppa/libc.abilist +++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist @@ -2596,6 +2596,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist index 2e7603d9ed..a4dc341ded 100644 --- a/sysdeps/unix/sysv/linux/i386/libc.abilist +++ b/sysdeps/unix/sysv/linux/i386/libc.abilist @@ -2780,6 +2780,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist index dd3a56d3fe..94b222dbc7 100644 --- a/sysdeps/unix/sysv/linux/ia64/libc.abilist +++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist @@ -2547,6 +2547,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist index c1e0ea9c10..12fd3b6310 100644 --- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist @@ -492,6 +492,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _Exit F GLIBC_2.4 _IO_2_1_stderr_ D 0x98 GLIBC_2.4 _IO_2_1_stdin_ D 0x98 diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist index 93161048ca..4d2296007a 100644 --- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist @@ -2723,6 +2723,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist index 0aaeec8a27..a223278a3d 100644 --- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist @@ -2696,3 +2696,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist index bec5f456c9..780a4f5b0b 100644 --- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist @@ -2693,3 +2693,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist index 97d2127f78..cd65136062 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist @@ -2688,6 +2688,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist index acb0756c11..b5b9902db5 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist @@ -2686,6 +2686,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist index ebc21dde1e..57593d5f94 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist @@ -2694,6 +2694,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist index c68f7e3c6c..e944d76bed 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist @@ -2598,6 +2598,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist index e5b6834f14..8af5a3a90d 100644 --- a/sysdeps/unix/sysv/linux/nios2/libc.abilist +++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist @@ -2735,3 +2735,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist index 132707c8ad..9978c18019 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist @@ -3080,3 +3080,4 @@ GLIBC_2.9 ns_name_skip F GLIBC_2.9 ns_name_uncompress F GLIBC_2.9 ns_name_unpack F GLIBC_2.9 pipe2 F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist index 0af2be31a0..f57df0234b 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist @@ -2783,6 +2783,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist index cf864632d0..259a0cfc51 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist @@ -2506,6 +2506,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist index d566d675d0..126541daf1 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist @@ -2808,3 +2808,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist index c9a7eacb32..05df4d13d2 100644 --- a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist +++ b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist @@ -2375,3 +2375,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist index 8299131cb2..8e349cbff8 100644 --- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist +++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist @@ -2575,3 +2575,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist index c3fe78f77f..e9de402766 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist @@ -2748,6 +2748,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist index 83e542aa8c..1a010c745d 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist @@ -2543,6 +2543,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist index dc502f6833..22ce530975 100644 --- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist @@ -2603,6 +2603,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist index cba1abb556..960df07b83 100644 --- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist @@ -2600,6 +2600,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist index d4a516fb47..eedb376f3d 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist @@ -2743,6 +2743,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist index 6268875ba3..86e0c92bef 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist @@ -2570,6 +2570,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist index 095e914b73..5e59d90623 100644 --- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist @@ -2521,6 +2521,7 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F GLIBC_2.4 __fgets_unlocked_chk F diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist index dd910f7fe9..94412dc134 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist @@ -2627,3 +2627,4 @@ GLIBC_2.34 tss_create F GLIBC_2.34 tss_delete F GLIBC_2.34 tss_get F GLIBC_2.34 tss_set F +GLIBC_2.35 __memcmpeq F diff --git a/sysdeps/x86_64/memcmp.S b/sysdeps/x86_64/memcmp.S index 870e15c5a0..f41ae48006 100644 --- a/sysdeps/x86_64/memcmp.S +++ b/sysdeps/x86_64/memcmp.S @@ -358,4 +358,6 @@ END(memcmp) #undef bcmp weak_alias (memcmp, bcmp) +#undef __memcmpeq +weak_alias (memcmp, __memcmpeq) libc_hidden_builtin_def (memcmp) diff --git a/sysdeps/x86_64/multiarch/memcmp.c b/sysdeps/x86_64/multiarch/memcmp.c index fe725f3563..9cc4750bbc 100644 --- a/sysdeps/x86_64/multiarch/memcmp.c +++ b/sysdeps/x86_64/multiarch/memcmp.c @@ -29,6 +29,8 @@ libc_ifunc_redirected (__redirect_memcmp, memcmp, IFUNC_SELECTOR ()); # undef bcmp weak_alias (memcmp, bcmp) +#undef __memcmpeq +weak_alias (memcmp, __memcmpeq) # ifdef SHARED __hidden_ver1 (memcmp, __GI_memcmp, __redirect_memcmp)

[v5] String: Add support for __memcmpeq() ABI on all targets

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Patch