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Date: Fri, 11 Oct 2019 13:50:52 +0200
From: Jiri Slaby <jslaby@...e.cz>
To: bp@...en8.de
Cc: tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
x86@...nel.org, linux-arch@...r.kernel.org,
linux-kernel@...r.kernel.org, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH v9 12/28] x86/boot: Annotate data appropriately
Use the new SYM_DATA, SYM_DATA_START, and SYM_DATA_END* macros for data,
so that the data in the object file look sane:
Value Size Type Bind Vis Ndx Name
0000 10 OBJECT GLOBAL DEFAULT 3 efi32_boot_gdt
000a 10 OBJECT LOCAL DEFAULT 3 save_gdt
0014 8 OBJECT LOCAL DEFAULT 3 func_rt_ptr
001c 48 OBJECT GLOBAL DEFAULT 3 efi_gdt64
004c 0 OBJECT LOCAL DEFAULT 3 efi_gdt64_end
0000 48 OBJECT LOCAL DEFAULT 3 gdt
0030 0 OBJECT LOCAL DEFAULT 3 gdt_end
0030 8 OBJECT LOCAL DEFAULT 3 efi_config
0038 49 OBJECT GLOBAL DEFAULT 3 efi32_config
0069 49 OBJECT GLOBAL DEFAULT 3 efi64_config
All have correct size and type now.
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Cc: Borislav Petkov <bp@...en8.de>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: x86@...nel.org
---
Notes:
[v9] .Lwakeup_idt handled in this patch too
arch/x86/boot/compressed/efi_thunk_64.S | 21 +++++++++-------
arch/x86/boot/compressed/head_64.S | 32 ++++++++++++-------------
arch/x86/boot/compressed/mem_encrypt.S | 3 +--
arch/x86/realmode/rm/wakeup_asm.S | 4 ++--
4 files changed, 30 insertions(+), 30 deletions(-)
diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index bff9ab7c6317..d66000d23921 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -176,16 +176,19 @@ ENDPROC(efi_enter32)
.data
.balign 8
- .global efi32_boot_gdt
-efi32_boot_gdt: .word 0
- .quad 0
+SYM_DATA_START(efi32_boot_gdt)
+ .word 0
+ .quad 0
+SYM_DATA_END(efi32_boot_gdt)
+
+SYM_DATA_START_LOCAL(save_gdt)
+ .word 0
+ .quad 0
+SYM_DATA_END(save_gdt)
-save_gdt: .word 0
- .quad 0
-func_rt_ptr: .quad 0
+SYM_DATA_LOCAL(func_rt_ptr, .quad 0)
- .global efi_gdt64
-efi_gdt64:
+SYM_DATA_START(efi_gdt64)
.word efi_gdt64_end - efi_gdt64
.long 0 /* Filled out by user */
.word 0
@@ -194,4 +197,4 @@ efi_gdt64:
.quad 0x00cf92000000ffff /* __KERNEL_DS */
.quad 0x0080890000000000 /* TS descriptor */
.quad 0x0000000000000000 /* TS continued */
-efi_gdt64_end:
+SYM_DATA_END_LABEL(efi_gdt64, SYM_L_LOCAL, efi_gdt64_end)
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 7afe6e067066..ca762ea6a681 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -659,11 +659,12 @@ SYM_FUNC_END(.Lno_longmode)
#include "../../kernel/verify_cpu.S"
.data
-gdt64:
+SYM_DATA_START_LOCAL(gdt64)
.word gdt_end - gdt
.quad 0
+SYM_DATA_END(gdt64)
.balign 8
-gdt:
+SYM_DATA_START_LOCAL(gdt)
.word gdt_end - gdt
.long gdt
.word 0
@@ -672,25 +673,24 @@ gdt:
.quad 0x00cf92000000ffff /* __KERNEL_DS */
.quad 0x0080890000000000 /* TS descriptor */
.quad 0x0000000000000000 /* TS continued */
-gdt_end:
+SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
#ifdef CONFIG_EFI_STUB
-efi_config:
- .quad 0
+SYM_DATA_LOCAL(efi_config, .quad 0)
#ifdef CONFIG_EFI_MIXED
- .global efi32_config
-efi32_config:
+SYM_DATA_START(efi32_config)
.fill 5,8,0
.quad efi64_thunk
.byte 0
+SYM_DATA_END(efi32_config)
#endif
- .global efi64_config
-efi64_config:
+SYM_DATA_START(efi64_config)
.fill 5,8,0
.quad efi_call
.byte 1
+SYM_DATA_END(efi64_config)
#endif /* CONFIG_EFI_STUB */
/*
@@ -698,23 +698,21 @@ efi64_config:
*/
.bss
.balign 4
-boot_heap:
- .fill BOOT_HEAP_SIZE, 1, 0
-boot_stack:
+SYM_DATA_LOCAL(boot_heap, .fill BOOT_HEAP_SIZE, 1, 0)
+
+SYM_DATA_START_LOCAL(boot_stack)
.fill BOOT_STACK_SIZE, 1, 0
-boot_stack_end:
+SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end)
/*
* Space for page tables (not in .bss so not zeroed)
*/
.section ".pgtable","a",@nobits
.balign 4096
-pgtable:
- .fill BOOT_PGT_SIZE, 1, 0
+SYM_DATA_LOCAL(pgtable, .fill BOOT_PGT_SIZE, 1, 0)
/*
* The page table is going to be used instead of page table in the trampoline
* memory.
*/
-top_pgtable:
- .fill PAGE_SIZE, 1, 0
+SYM_DATA_LOCAL(top_pgtable, .fill PAGE_SIZE, 1, 0)
diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S
index 6afb7130a387..28d703cad310 100644
--- a/arch/x86/boot/compressed/mem_encrypt.S
+++ b/arch/x86/boot/compressed/mem_encrypt.S
@@ -96,6 +96,5 @@ ENDPROC(set_sev_encryption_mask)
#ifdef CONFIG_AMD_MEM_ENCRYPT
.balign 8
-GLOBAL(sme_me_mask)
- .quad 0
+SYM_DATA(sme_me_mask, .quad 0)
#endif
diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
index dad6198f1a26..08438ee539bc 100644
--- a/arch/x86/realmode/rm/wakeup_asm.S
+++ b/arch/x86/realmode/rm/wakeup_asm.S
@@ -171,8 +171,8 @@ END(wakeup_gdt)
/* This is the standard real-mode IDT */
.balign 16
-.Lwakeup_idt:
+SYM_DATA_START_LOCAL(.Lwakeup_idt)
.word 0xffff /* limit */
.long 0 /* address */
.word 0
-END(.Lwakeup_idt)
+SYM_DATA_END(.Lwakeup_idt)
--
2.23.0
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