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-rw-r--r--arch/arm64/kernel/image-vars.h60
-rw-r--r--arch/arm64/kernel/vmlinux.lds.S2
2 files changed, 34 insertions, 28 deletions
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index a637cc47222c..c5266430284b 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -10,6 +10,12 @@
#error This file should only be included in vmlinux.lds.S
#endif
+#define PI_EXPORT_SYM(sym) \
+ __PI_EXPORT_SYM(sym, __pi_ ## sym, Cannot export BSS symbol sym to startup code)
+#define __PI_EXPORT_SYM(sym, pisym, msg)\
+ PROVIDE(pisym = sym); \
+ ASSERT((sym - KIMAGE_VADDR) < (__bss_start - KIMAGE_VADDR), #msg)
+
PROVIDE(__efistub_primary_entry = primary_entry);
/*
@@ -36,36 +42,34 @@ PROVIDE(__pi___memcpy = __pi_memcpy);
PROVIDE(__pi___memmove = __pi_memmove);
PROVIDE(__pi___memset = __pi_memset);
-PROVIDE(__pi_id_aa64isar1_override = id_aa64isar1_override);
-PROVIDE(__pi_id_aa64isar2_override = id_aa64isar2_override);
-PROVIDE(__pi_id_aa64mmfr0_override = id_aa64mmfr0_override);
-PROVIDE(__pi_id_aa64mmfr1_override = id_aa64mmfr1_override);
-PROVIDE(__pi_id_aa64mmfr2_override = id_aa64mmfr2_override);
-PROVIDE(__pi_id_aa64pfr0_override = id_aa64pfr0_override);
-PROVIDE(__pi_id_aa64pfr1_override = id_aa64pfr1_override);
-PROVIDE(__pi_id_aa64smfr0_override = id_aa64smfr0_override);
-PROVIDE(__pi_id_aa64zfr0_override = id_aa64zfr0_override);
-PROVIDE(__pi_arm64_sw_feature_override = arm64_sw_feature_override);
-PROVIDE(__pi_arm64_use_ng_mappings = arm64_use_ng_mappings);
+PI_EXPORT_SYM(id_aa64isar1_override);
+PI_EXPORT_SYM(id_aa64isar2_override);
+PI_EXPORT_SYM(id_aa64mmfr0_override);
+PI_EXPORT_SYM(id_aa64mmfr1_override);
+PI_EXPORT_SYM(id_aa64mmfr2_override);
+PI_EXPORT_SYM(id_aa64pfr0_override);
+PI_EXPORT_SYM(id_aa64pfr1_override);
+PI_EXPORT_SYM(id_aa64smfr0_override);
+PI_EXPORT_SYM(id_aa64zfr0_override);
+PI_EXPORT_SYM(arm64_sw_feature_override);
+PI_EXPORT_SYM(arm64_use_ng_mappings);
#ifdef CONFIG_CAVIUM_ERRATUM_27456
-PROVIDE(__pi_cavium_erratum_27456_cpus = cavium_erratum_27456_cpus);
-PROVIDE(__pi_is_midr_in_range_list = is_midr_in_range_list);
+PI_EXPORT_SYM(cavium_erratum_27456_cpus);
+PI_EXPORT_SYM(is_midr_in_range_list);
#endif
-PROVIDE(__pi__ctype = _ctype);
-
-PROVIDE(__pi_swapper_pg_dir = swapper_pg_dir);
-
-PROVIDE(__pi__text = _text);
-PROVIDE(__pi__stext = _stext);
-PROVIDE(__pi__etext = _etext);
-PROVIDE(__pi___start_rodata = __start_rodata);
-PROVIDE(__pi___inittext_begin = __inittext_begin);
-PROVIDE(__pi___inittext_end = __inittext_end);
-PROVIDE(__pi___initdata_begin = __initdata_begin);
-PROVIDE(__pi___initdata_end = __initdata_end);
-PROVIDE(__pi__data = _data);
-PROVIDE(__pi___bss_start = __bss_start);
-PROVIDE(__pi__end = _end);
+PI_EXPORT_SYM(_ctype);
+
+PI_EXPORT_SYM(swapper_pg_dir);
+
+PI_EXPORT_SYM(_text);
+PI_EXPORT_SYM(_stext);
+PI_EXPORT_SYM(_etext);
+PI_EXPORT_SYM(__start_rodata);
+PI_EXPORT_SYM(__inittext_begin);
+PI_EXPORT_SYM(__inittext_end);
+PI_EXPORT_SYM(__initdata_begin);
+PI_EXPORT_SYM(__initdata_end);
+PI_EXPORT_SYM(_data);
#ifdef CONFIG_KVM
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 466544c47dca..e4a525a865c1 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -319,6 +319,7 @@ SECTIONS
/* start of zero-init region */
BSS_SECTION(SBSS_ALIGN, 0, 0)
+ __pi___bss_start = __bss_start;
. = ALIGN(PAGE_SIZE);
__pi_init_pg_dir = .;
@@ -332,6 +333,7 @@ SECTIONS
. = ALIGN(SEGMENT_ALIGN);
__pecoff_data_size = ABSOLUTE(. - __initdata_begin);
_end = .;
+ __pi__end = .;
STABS_DEBUG
DWARF_DEBUG