From d20db0561a6a36f914fde030512503b114ef9a0c Mon Sep 17 00:00:00 2001 From: CoprDistGit Date: Sat, 3 Aug 2024 06:28:41 +0000 Subject: automatic import of glibc --- ...4-Use-testl-to-check-__x86_string_control.patch | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 x86-64-Use-testl-to-check-__x86_string_control.patch (limited to 'x86-64-Use-testl-to-check-__x86_string_control.patch') diff --git a/x86-64-Use-testl-to-check-__x86_string_control.patch b/x86-64-Use-testl-to-check-__x86_string_control.patch new file mode 100644 index 0000000..363930e --- /dev/null +++ b/x86-64-Use-testl-to-check-__x86_string_control.patch @@ -0,0 +1,38 @@ +From 3c8b9879cab6d41787bc5b14c1748f62fd6d0e5f Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Sat, 28 Aug 2021 06:10:38 -0700 +Subject: [PATCH] x86-64: Use testl to check __x86_string_control + +Use testl, instead of andl, to check __x86_string_control to avoid +updating __x86_string_control. + +Reviewed-by: Carlos O'Donell +--- + sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S +index 9f02624..abde843 100644 +--- a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S ++++ b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S +@@ -325,7 +325,7 @@ L(movsb): + /* Avoid slow backward REP MOVSB. */ + jb L(more_8x_vec_backward) + # if AVOID_SHORT_DISTANCE_REP_MOVSB +- andl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) ++ testl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) + jz 3f + movq %rdi, %rcx + subq %rsi, %rcx +@@ -333,7 +333,7 @@ L(movsb): + # endif + 1: + # if AVOID_SHORT_DISTANCE_REP_MOVSB +- andl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) ++ testl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) + jz 3f + movq %rsi, %rcx + subq %rdi, %rcx +-- +1.8.3.1 + -- cgit v1.2.3