Module Name: src Committed By: skrll Date: Wed Sep 30 16:47:55 UTC 2020
Modified Files: src/sys/arch/aarch64/aarch64: aarch64_machdep.c Log Message: Improve a comment To generate a diff of this commit: cvs rdiff -u -r1.48 -r1.49 src/sys/arch/aarch64/aarch64/aarch64_machdep.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/aarch64/aarch64/aarch64_machdep.c diff -u src/sys/arch/aarch64/aarch64/aarch64_machdep.c:1.48 src/sys/arch/aarch64/aarch64/aarch64_machdep.c:1.49 --- src/sys/arch/aarch64/aarch64/aarch64_machdep.c:1.48 Wed Sep 16 18:26:15 2020 +++ src/sys/arch/aarch64/aarch64/aarch64_machdep.c Wed Sep 30 16:47:55 2020 @@ -1,4 +1,4 @@ -/* $NetBSD: aarch64_machdep.c,v 1.48 2020/09/16 18:26:15 skrll Exp $ */ +/* $NetBSD: aarch64_machdep.c,v 1.49 2020/09/30 16:47:55 skrll Exp $ */ /*- * Copyright (c) 2014 The NetBSD Foundation, Inc. @@ -30,7 +30,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(1, "$NetBSD: aarch64_machdep.c,v 1.48 2020/09/16 18:26:15 skrll Exp $"); +__KERNEL_RCSID(1, "$NetBSD: aarch64_machdep.c,v 1.49 2020/09/30 16:47:55 skrll Exp $"); #include "opt_arm_debug.h" #include "opt_cpuoptions.h" @@ -251,11 +251,10 @@ initarm_common(vaddr_t kvm_base, vsize_t #ifdef MODULAR /* - * aarch64 compiler (gcc & llvm) uses R_AARCH_CALL26/R_AARCH_JUMP26 - * for function calling/jumping. - * (at this time, both compilers doesn't support -mlong-calls) - * therefore kernel modules should be loaded within maximum 26bit word, - * or +-128MB from kernel. + * The aarch64 compilers (gcc & llvm) use R_AARCH_CALL26/R_AARCH_JUMP26 + * for function calls (bl)/jumps(b). At this time, neither compiler + * supports -mlong-calls therefore the kernel modules should be loaded + * within the maximum range of +/-128MB from kernel text. */ #define MODULE_RESERVED_MAX (1024 * 1024 * 128) #define MODULE_RESERVED_SIZE (1024 * 1024 * 32) /* good enough? */