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cross-armv7hl-gcc-icecream-backend
gcc48-bnc1087932.patch
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File gcc48-bnc1087932.patch of Package cross-armv7hl-gcc-icecream-backend
2015-05-12 Yvan Roux <yvan.roux@linaro.org> Backport from mainline. 2015-05-05 Yvan Roux <yvan.roux@linaro.org> * config/aarch64/aarch64-elf-raw.h (CA53_ERR_843419_SPEC): Define. (LINK_SPEC): Include CA53_ERR_843419_SPEC. * config/aarch64/aarch64-linux.h (CA53_ERR_843419_SPEC): Define. (LINK_SPEC): Include CA53_ERR_843419_SPEC. * config/aarch64/aarch64.opt (mfix-cortex-a53-843419): New option. * configure: Regenerate. * configure.ac: Add --enable-fix-cortex-a53-843419 option. * doc/install.texi (aarch64*-*-*): Document new --enable-fix-cortex-a53-843419 option. * doc/invoke.texi (AArch64 Options): Document -mfix-cortex-a53-843419 and -mno-fix-cortex-a53-843419 options. Index: gcc/config/aarch64/aarch64-elf-raw.h =================================================================== --- gcc/config/aarch64/aarch64-elf-raw.h (revision 235439) +++ gcc/config/aarch64/aarch64-elf-raw.h (working copy) @@ -33,9 +33,18 @@ " %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}" #endif +#ifdef TARGET_FIX_ERR_A53_843419_DEFAULT +#define CA53_ERR_843419_SPEC \ + " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}" +#else +#define CA53_ERR_843419_SPEC \ + " %{mfix-cortex-a53-843419:--fix-cortex-a53-843419}" +#endif + #ifndef LINK_SPEC #define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -X" \ - CA53_ERR_835769_SPEC + CA53_ERR_835769_SPEC \ + CA53_ERR_843419_SPEC #endif #endif /* GCC_AARCH64_ELF_RAW_H */ Index: gcc/config/aarch64/aarch64-linux.h =================================================================== --- gcc/config/aarch64/aarch64-linux.h (revision 235439) +++ gcc/config/aarch64/aarch64-linux.h (working copy) @@ -42,8 +42,17 @@ " %{mfix-cortex-a53-835769:--fix-cortex-a53-835769}" #endif +#ifdef TARGET_FIX_ERR_A53_843419_DEFAULT +#define CA53_ERR_843419_SPEC \ + " %{!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419}" +#else +#define CA53_ERR_843419_SPEC \ + " %{mfix-cortex-a53-843419:--fix-cortex-a53-843419}" +#endif + #define LINK_SPEC LINUX_TARGET_LINK_SPEC \ - CA53_ERR_835769_SPEC + CA53_ERR_835769_SPEC \ + CA53_ERR_843419_SPEC #define TARGET_OS_CPP_BUILTINS() \ do \ Index: gcc/config/aarch64/aarch64.opt =================================================================== --- gcc/config/aarch64/aarch64.opt (revision 235439) +++ gcc/config/aarch64/aarch64.opt (working copy) @@ -71,6 +71,10 @@ mfix-cortex-a53-835769 Target Report Var(aarch64_fix_a53_err835769) Init(2) Workaround for ARM Cortex-A53 Erratum number 835769 +mfix-cortex-a53-843419 +Target Report +Workaround for ARM Cortex-A53 Erratum number 843419 + mlittle-endian Target Report RejectNegative InverseMask(BIG_END) Assume target CPU is configured as little endian Index: gcc/configure =================================================================== --- gcc/configure (revision 235439) +++ gcc/configure (working copy) @@ -911,6 +911,7 @@ enable_gnu_indirect_function enable_initfini_array enable_comdat enable_fix_cortex_a53_835769 +enable_fix_cortex_a53_843419 enable_gnu_unique_object enable_linker_build_id with_long_double_128 @@ -1628,6 +1629,14 @@ Optional Features: disable workaround for AArch64 Cortex-A53 erratum 835769 by default + + --enable-fix-cortex-a53-843419 + enable workaround for AArch64 Cortex-A53 erratum + 843419 by default + --disable-fix-cortex-a53-843419 + disable workaround for AArch64 Cortex-A53 erratum + 843419 by default + --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on glibc systems @@ -17847,7 +17856,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 17850 "configure" +#line 17859 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -17953,7 +17962,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 17956 "configure" +#line 17965 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -23822,6 +23831,25 @@ if test "${enable_fix_cortex_a53_835769+ Valid choices are 'yes' and 'no'." "$LINENO" 5 ;; + esac + +fi + + # Enable default workaround for AArch64 Cortex-A53 erratum 843419. + # Check whether --enable-fix-cortex-a53-843419 was given. +if test "${enable_fix_cortex_a53_843419+set}" = set; then : + enableval=$enable_fix_cortex_a53_843419; + case $enableval in + yes) + tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1" + ;; + no) + ;; + *) + as_fn_error "'$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\ + Valid choices are 'yes' and 'no'." "$LINENO" 5 + ;; + esac fi Index: gcc/configure.ac =================================================================== --- gcc/configure.ac (revision 235439) +++ gcc/configure.ac (working copy) @@ -3468,6 +3468,29 @@ AS_HELP_STRING([--disable-fix-cortex-a53 esac ], []) + # Enable default workaround for AArch64 Cortex-A53 erratum 843419. + AC_ARG_ENABLE(fix-cortex-a53-843419, + [ +AS_HELP_STRING([--enable-fix-cortex-a53-843419], + [enable workaround for AArch64 Cortex-A53 erratum 843419 by default]) +AS_HELP_STRING([--disable-fix-cortex-a53-843419], + [disable workaround for AArch64 Cortex-A53 erratum 843419 by default]) + ], + [ + case $enableval in + yes) + tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1" + ;; + no) + ;; + *) + AC_MSG_ERROR(['$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\ + Valid choices are 'yes' and 'no'.]) + ;; + + esac + ], + []) ;; # All TARGET_ABI_OSF targets. alpha*-*-linux* | alpha*-*-*bsd*) Index: gcc/doc/install.texi =================================================================== --- gcc/doc/install.texi (revision 235439) +++ gcc/doc/install.texi (working copy) @@ -3131,13 +3131,24 @@ information have to. To enable a workaround for the Cortex-A53 erratum number 835769 by default (for all CPUs regardless of -mcpu option given) at configure time use the @option{--enable-fix-cortex-a53-835769} option. This will enable the fix by -default and can be explicitly disabled during during compilation by passing the +default and can be explicitly disabled during compilation by passing the @option{-mno-fix-cortex-a53-835769} option. Conversely, @option{--disable-fix-cortex-a53-835769} will disable the workaround by default. The workaround is disabled by default if neither of @option{--enable-fix-cortex-a53-835769} or @option{--disable-fix-cortex-a53-835769} is given at configure time. +To enable a workaround for the Cortex-A53 erratum number 843419 by default +(for all CPUs regardless of -mcpu option given) at configure time use the +@option{--enable-fix-cortex-a53-843419} option. This workaround is applied at +link time. Enabling the workaround will cause GCC to pass the relevant option +to the linker. It can be explicitly disabled during compilation by passing the +@option{-mno-fix-cortex-a53-843419} option. Conversely, +@option{--disable-fix-cortex-a53-843419} will disable the workaround by default. +The workaround is disabled by default if neither of +@option{--enable-fix-cortex-a53-843419} or +@option{--disable-fix-cortex-a53-843419} is given at configure time. + @heading @anchor{alpha-x-x}alpha*-*-* This section contains general configuration information for all Index: gcc/doc/invoke.texi =================================================================== --- gcc/doc/invoke.texi (revision 235439) +++ gcc/doc/invoke.texi (working copy) @@ -476,6 +476,7 @@ Objective-C and Objective-C++ Dialects}. -momit-leaf-frame-pointer -mno-omit-leaf-frame-pointer @gol -mtls-dialect=desc -mtls-dialect=traditional @gol -mfix-cortex-a53-835769 -mno-fix-cortex-a53-835769 @gol +-mfix-cortex-a53-843419 -mno-fix-cortex-a53-843419 @gol -march=@var{name} -mcpu=@var{name} -mtune=@var{name}} @emph{Adapteva Epiphany Options} @@ -10943,6 +10944,14 @@ Enable or disable the workaround for the This will involve inserting a NOP instruction between memory instructions and 64-bit integer multiply-accumulate instructions. +@item -mfix-cortex-a53-843419 +@itemx -mno-fix-cortex-a53-843419 +@opindex mfix-cortex-a53-843419 +@opindex mno-fix-cortex-a53-843419 +Enable or disable the workaround for the ARM Cortex-A53 erratum number 843419. +This erratum workaround is made at link time and this will only pass the +corresponding flag to the linker. + @item -march=@var{name} @opindex march Specify the name of the target architecture, optionally suffixed by one or
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