From 40a3b8df7be3b813cef7e32f74dea398274c2d47 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:03:39 -0700 Subject: [PATCH] tile: normalize global variables exported by vmlinux.lds Normalize global variables exported by vmlinux.lds to conform usage guidelines from include/asm-generic/sections.h. 1) Use _text to mark the start of the kernel image including the head text, and _stext to mark the start of the .text section. 2) Export mandatory global variables __init_begin and __init_end. Signed-off-by: Jiang Liu Acked-by: Chris Metcalf Cc: Rusty Russell Cc: Bjorn Helgaas Cc: "David S. Miller" Cc: Wen Congyang Cc: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/tile/include/asm/sections.h | 2 +- arch/tile/kernel/setup.c | 4 ++-- arch/tile/kernel/vmlinux.lds.S | 4 +++- arch/tile/mm/init.c | 2 +- 4 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/tile/include/asm/sections.h b/arch/tile/include/asm/sections.h index d062d463fca9..7d8a935a9238 100644 --- a/arch/tile/include/asm/sections.h +++ b/arch/tile/include/asm/sections.h @@ -34,7 +34,7 @@ extern char __sys_cmpxchg_grab_lock[]; extern char __start_atomic_asm_code[], __end_atomic_asm_code[]; #endif -/* Handle the discontiguity between _sdata and _stext. */ +/* Handle the discontiguity between _sdata and _text. */ static inline int arch_is_kernel_data(unsigned long addr) { return addr >= (unsigned long)_sdata && diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 7a5aa1a7864e..41818e3ce97e 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -307,8 +307,8 @@ static void __cpuinit store_permanent_mappings(void) hv_store_mapping(addr, pages << PAGE_SHIFT, pa); } - hv_store_mapping((HV_VirtAddr)_stext, - (uint32_t)(_einittext - _stext), 0); + hv_store_mapping((HV_VirtAddr)_text, + (uint32_t)(_einittext - _text), 0); } /* diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S index 631f10de12fe..a13ed902afbb 100644 --- a/arch/tile/kernel/vmlinux.lds.S +++ b/arch/tile/kernel/vmlinux.lds.S @@ -27,7 +27,6 @@ SECTIONS .intrpt1 (LOAD_OFFSET) : AT ( 0 ) /* put at the start of physical memory */ { _text = .; - _stext = .; *(.intrpt1) } :intrpt1 =0 @@ -36,6 +35,7 @@ SECTIONS /* Now the real code */ . = ALIGN(0x20000); + _stext = .; .text : AT (ADDR(.text) - LOAD_OFFSET) { HEAD_TEXT SCHED_TEXT @@ -58,11 +58,13 @@ SECTIONS #define LOAD_OFFSET PAGE_OFFSET . = ALIGN(PAGE_SIZE); + __init_begin = .; VMLINUX_SYMBOL(_sinitdata) = .; INIT_DATA_SECTION(16) :data =0 PERCPU_SECTION(L2_CACHE_BYTES) . = ALIGN(PAGE_SIZE); VMLINUX_SYMBOL(_einitdata) = .; + __init_end = .; _sdata = .; /* Start of data section */ diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index 45ce26d4e474..f2ac2f405775 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -562,7 +562,7 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) prot = ktext_set_nocache(prot); } - BUG_ON(address != (unsigned long)_stext); + BUG_ON(address != (unsigned long)_text); pte = NULL; for (; address < (unsigned long)_einittext; pfn++, address += PAGE_SIZE) { -- 2.30.2