From 748a768384e05c021ea6be221b80c62a83d7b520 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 13 Sep 2007 15:42:35 -0500 Subject: [PATCH] [POWERPC] Fix modpost warnings from head*.S on ppc32 We get warnings like the following from the various ppc32 head*.S files: WARNING: vmlinux.o(.text+0x358): Section mismatch: reference to .init.text:early_init (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x380): Section mismatch: reference to .init.text:machine_init (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x384): Section mismatch: reference to .init.text:MMU_init (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x3aa): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x3ae): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base') Added a .text.head section simliar to what other architectures do since modpost already excludes this from its warnings. Signed-off-by: Kumar Gala --- arch/powerpc/kernel/head_32.S | 17 +++++++---------- arch/powerpc/kernel/head_40x.S | 12 ++++++------ arch/powerpc/kernel/head_44x.S | 6 +++--- arch/powerpc/kernel/head_8xx.S | 9 +++------ arch/powerpc/kernel/head_fsl_booke.S | 6 +++--- arch/powerpc/kernel/vmlinux.lds.S | 2 ++ include/asm-powerpc/ppc_asm.h | 4 ++++ 7 files changed, 28 insertions(+), 28 deletions(-) diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 0e3df1f55f..12febfe43d 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -48,20 +48,17 @@ mtspr SPRN_DBAT##n##L,RB; \ 1: - .text + .section .text.head, "ax" .stabs "arch/powerpc/kernel/",N_SO,0,0,0f .stabs "head_32.S",N_SO,0,0,0f 0: - .globl _stext -_stext: +_ENTRY(_stext); /* * _start is defined this way because the XCOFF loader in the OpenFirmware * on the powermac expects the entry point to be a procedure descriptor. */ - .text - .globl _start -_start: +_ENTRY(_start); /* * These are here for legacy reasons, the kernel used to * need to look like a coff function entry for the pmac @@ -841,7 +838,7 @@ relocate_kernel: * r3 = dest addr, r4 = source addr, r5 = copy limit, r6 = start offset * on exit, r3, r4, r5 are unchanged, r6 is updated to be >= r5. */ -_GLOBAL(copy_and_flush) +_ENTRY(copy_and_flush) addi r5,r5,-4 addi r6,r6,-4 4: li r0,L1_CACHE_BYTES/4 @@ -954,9 +951,9 @@ __secondary_start: * included in CONFIG_6xx */ #if !defined(CONFIG_6xx) -_GLOBAL(__save_cpu_setup) +_ENTRY(__save_cpu_setup) blr -_GLOBAL(__restore_cpu_setup) +_ENTRY(__restore_cpu_setup) blr #endif /* !defined(CONFIG_6xx) */ @@ -1080,7 +1077,7 @@ start_here: /* * Set up the segment registers for a new context. */ -_GLOBAL(set_context) +_ENTRY(set_context) mulli r3,r3,897 /* multiply context by skew factor */ rlwinm r3,r3,4,8,27 /* VSID = (context & 0xfffff) << 4 */ addis r3,r3,0x6000 /* Set Ks, Ku bits */ diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S index a8e045773a..00bdb6d1c7 100644 --- a/arch/powerpc/kernel/head_40x.S +++ b/arch/powerpc/kernel/head_40x.S @@ -52,9 +52,9 @@ * * This is all going to change RSN when we add bi_recs....... -- Dan */ - .text -_GLOBAL(_stext) -_GLOBAL(_start) + .section .text.head, "ax" +_ENTRY(_stext); +_ENTRY(_start); /* Save parameters we are passed. */ @@ -89,9 +89,9 @@ turn_on_mmu: */ . = 0xc0 crit_save: -_GLOBAL(crit_r10) +_ENTRY(crit_r10) .space 4 -_GLOBAL(crit_r11) +_ENTRY(crit_r11) .space 4 /* @@ -814,7 +814,7 @@ finish_tlb_load: * The PowerPC 4xx family of processors do not have an FPU, so this just * returns. */ -_GLOBAL(giveup_fpu) +_ENTRY(giveup_fpu) blr /* This is where the main kernel code starts. diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S index e26d26e318..a3dc0e4d04 100644 --- a/arch/powerpc/kernel/head_44x.S +++ b/arch/powerpc/kernel/head_44x.S @@ -50,9 +50,9 @@ * r7 - End of kernel command line string * */ - .text -_GLOBAL(_stext) -_GLOBAL(_start) + .section .text.head, "ax" +_ENTRY(_stext); +_ENTRY(_start); /* * Reserve a word at a fixed location to store the address * of abatron_pteptrs diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 901be47a02..a6ecdd6431 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -38,12 +38,9 @@ #else #define DO_8xx_CPU6(val, reg) #endif - .text - .globl _stext -_stext: - .text - .globl _start -_start: + .section .text.head, "ax" +_ENTRY(_stext); +_ENTRY(_start); /* MPC8xx * This port was done on an MBX board with an 860. Right now I only diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 1f155d399d..d83cbbb264 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -52,9 +52,9 @@ * r7 - End of kernel command line string * */ - .text -_GLOBAL(_stext) -_GLOBAL(_start) + .section .text.head, "ax" +_ENTRY(_stext); +_ENTRY(_start); /* * Reserve a word at a fixed location to store the address * of abatron_pteptrs diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 0c45855639..823a8cbd60 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -34,6 +34,8 @@ SECTIONS /* Text and gots */ .text : { + ALIGN_FUNCTION(); + *(.text.head) _text = .; TEXT_TEXT SCHED_TEXT diff --git a/include/asm-powerpc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h index 211fdaeeef..2dbd4e7884 100644 --- a/include/asm-powerpc/ppc_asm.h +++ b/include/asm-powerpc/ppc_asm.h @@ -209,6 +209,10 @@ GLUE(.,name): #else /* 32-bit */ +#define _ENTRY(n) \ + .globl n; \ +n: + #define _GLOBAL(n) \ .text; \ .stabs __stringify(n:F-1),N_FUN,0,0,n;\ -- 2.39.5