Ping^2? Thanks, Kugan
On 21 July 2017 at 20:12, Kugan Vivekanandarajah <kugan.vivekanandara...@linaro.org> wrote: > Ping ? > > Thanks, > Kugan > > On 27 June 2017 at 11:20, Kugan Vivekanandarajah > <kugan.vivekanandara...@linaro.org> wrote: >> https://gcc.gnu.org/ml/gcc-patches/2016-03/msg00614.html added this >> workaround to get kernel building with when TARGET_FIX_ERR_A53_843419 >> is enabled. >> >> This was added to support building kernel loadable modules. In kernel, >> when CONFIG_ARM64_ERRATUM_843419 is selected, the relocation needed >> for ADRP/LDR (R_AARCH64_ADR_PREL_PG_HI21 and >> R_AARCH64_ADR_PREL_PG_HI21_NC are removed from the kernel to avoid >> loading objects with possibly offending sequence). Thus, it could only >> support pc relative literal loads. >> >> However, the following patch was posted to kernel to add >> -mpc-relative-literal-loads >> http://www.spinics.net/lists/arm-kernel/msg476149.html >> >> -mpc-relative-literal-loads is unconditionally added to the kernel >> build as can be seen from: >> https://github.com/torvalds/linux/blob/master/arch/arm64/Makefile >> >> Therefore this patch removes the hunk so that applications like >> SPECcpu2017's 521/621.wrf can be built (with LTO in this case) without >> -mno-pc-relative-literal-loads >> >> Bootstrapped and regression tested on aarch64-linux-gnu with no new >> regressions. >> >> Is this OK for trunk? >> >> Thanks, >> Kugan >> >> gcc/testsuite/ChangeLog: >> >> 2017-06-27 Kugan Vivekanandarajah <kug...@linaro.org> >> >> * gcc.target/aarch64/pr63304_1.c: Remove-mno-fix-cortex-a53-843419. >> >> gcc/ChangeLog: >> >> 2017-06-27 Kugan Vivekanandarajah <kug...@linaro.org> >> >> * config/aarch64/aarch64.c (aarch64_override_options_after_change_1): >> Disable pc relative literal load irrespective of TARGET_FIX_ERR_A53_84341 >> for default.
