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LoongArch: Add minuimum binutils required version

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LoongArch glibc can add some LASX/LSX vector instructions codes,
change the required minimum binutils version to 2.41 which could
support vector instructions. HAVE_LOONGARCH_VEC_ASM is removed
accordingly.
This commit is contained in:
dengjianbo 2023-08-08 14:15:43 +08:00 committed by caiyinyu
parent 57b2c14272
commit cb7954c4c2
6 changed files with 9 additions and 14 deletions
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3
NEWS
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@ -20,7 +20,8 @@ Deprecated and removed features, and other changes affecting compatibility:
Changes to build and runtime requirements:
[Add changes to build and runtime requirements here]
* Building on LoongArch requires at a minimum binutils 2.41 for vector
instructions.
Security related changes:

5
config.h.in
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@ -141,11 +141,6 @@
/* LOONGARCH floating-point ABI for ld.so. */
#undef LOONGARCH_ABI_FRLEN
/* Assembler support LoongArch LASX/LSX vector instructions.
This macro becomes obsolete when glibc increased the minimum
required version of GNU 'binutils' to 2.41 or later. */
#define HAVE_LOONGARCH_VEC_ASM 0
/* Linux specific: minimum supported kernel version. */
#undef __LINUX_KERNEL_VERSION

5
sysdeps/loongarch/configure vendored
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@ -128,8 +128,7 @@ rm -f conftest*
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_loongarch_vec_asm" >&5
printf "%s\n" "$libc_cv_loongarch_vec_asm" >&6; }
if test $libc_cv_loongarch_vec_asm = yes; then
printf "%s\n" "#define HAVE_LOONGARCH_VEC_ASM 1" >>confdefs.h
if test $libc_cv_loongarch_vec_asm = no; then
as_fn_error $? "binutils version is too old, use 2.41 or newer version" "$LINENO" 5
fi

4
sysdeps/loongarch/configure.ac
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@ -74,6 +74,6 @@ else
libc_cv_loongarch_vec_asm=no
fi
rm -f conftest*])
if test $libc_cv_loongarch_vec_asm = yes; then
AC_DEFINE(HAVE_LOONGARCH_VEC_ASM)
if test $libc_cv_loongarch_vec_asm = no; then
AC_MSG_ERROR([binutils version is too old, use 2.41 or newer version])
fi

4
sysdeps/loongarch/dl-machine.h
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@ -270,7 +270,7 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
/* If using PLTs, fill in the first two entries of .got.plt. */
if (l->l_info[DT_JMPREL])
{
#if HAVE_LOONGARCH_VEC_ASM && !defined __loongarch_soft_float
#if !defined __loongarch_soft_float
extern void _dl_runtime_resolve_lasx (void) attribute_hidden;
extern void _dl_runtime_resolve_lsx (void) attribute_hidden;
#endif
@ -300,7 +300,7 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
/* This function will get called to fix up the GOT entry
indicated by the offset on the stack, and then jump to
the resolved address. */
#if HAVE_LOONGARCH_VEC_ASM && !defined __loongarch_soft_float
#if !defined __loongarch_soft_float
if (SUPPORT_LASX)
gotplt[0] = (ElfW(Addr)) &_dl_runtime_resolve_lasx;
else if (SUPPORT_LSX)

2
sysdeps/loongarch/dl-trampoline.S
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@ -19,7 +19,7 @@
#include <sysdep.h>
#include <sys/asm.h>
#if HAVE_LOONGARCH_VEC_ASM && !defined __loongarch_soft_float
#if !defined __loongarch_soft_float
#define USE_LASX
#define _dl_runtime_resolve _dl_runtime_resolve_lasx
#include "dl-trampoline.h"