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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 <jiang.liu@huawei.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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4 changed files with 7 additions and 5 deletions
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@ -34,7 +34,7 @@ extern char __sys_cmpxchg_grab_lock[];
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extern char __start_atomic_asm_code[], __end_atomic_asm_code[];
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#endif
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/* Handle the discontiguity between _sdata and _stext. */
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/* Handle the discontiguity between _sdata and _text. */
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static inline int arch_is_kernel_data(unsigned long addr)
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{
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return addr >= (unsigned long)_sdata &&
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@ -307,8 +307,8 @@ static void __cpuinit store_permanent_mappings(void)
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hv_store_mapping(addr, pages << PAGE_SHIFT, pa);
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}
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hv_store_mapping((HV_VirtAddr)_stext,
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(uint32_t)(_einittext - _stext), 0);
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hv_store_mapping((HV_VirtAddr)_text,
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(uint32_t)(_einittext - _text), 0);
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}
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/*
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@ -27,7 +27,6 @@ SECTIONS
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.intrpt1 (LOAD_OFFSET) : AT ( 0 ) /* put at the start of physical memory */
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{
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_text = .;
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_stext = .;
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*(.intrpt1)
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} :intrpt1 =0
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@ -36,6 +35,7 @@ SECTIONS
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/* Now the real code */
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. = ALIGN(0x20000);
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_stext = .;
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.text : AT (ADDR(.text) - LOAD_OFFSET) {
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HEAD_TEXT
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SCHED_TEXT
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@ -58,11 +58,13 @@ SECTIONS
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#define LOAD_OFFSET PAGE_OFFSET
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. = ALIGN(PAGE_SIZE);
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__init_begin = .;
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VMLINUX_SYMBOL(_sinitdata) = .;
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INIT_DATA_SECTION(16) :data =0
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PERCPU_SECTION(L2_CACHE_BYTES)
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. = ALIGN(PAGE_SIZE);
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VMLINUX_SYMBOL(_einitdata) = .;
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__init_end = .;
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_sdata = .; /* Start of data section */
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@ -562,7 +562,7 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base)
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prot = ktext_set_nocache(prot);
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}
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BUG_ON(address != (unsigned long)_stext);
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BUG_ON(address != (unsigned long)_text);
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pte = NULL;
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for (; address < (unsigned long)_einittext;
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pfn++, address += PAGE_SIZE) {
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