x86/brk: put the brk reservations in their own section
Impact: disambiguate real .bss variables from .brk storage Add a .brk section after the .bss section. This has no effect on the final vmlinux, but it more clearly distinguishes the space taken by actual .bss symbols, and the variable space reserved by .brk users. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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@ -189,16 +189,18 @@ SECTIONS
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*(.bss)
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. = ALIGN(4);
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__bss_stop = .;
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}
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.brk : AT(ADDR(.brk) - LOAD_OFFSET) {
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. = ALIGN(PAGE_SIZE);
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__brk_base = . ;
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. += 64 * 1024 ; /* 64k slop space */
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. += 64 * 1024 ; /* 64k alignment slop space */
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*(.brk_reservation) /* areas brk users have reserved */
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__brk_limit = . ;
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_end = . ;
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}
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_end = . ;
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/* Sections to be discarded */
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/DISCARD/ : {
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*(.exitcall.exit)
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@ -247,10 +247,12 @@ SECTIONS
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*(.bss.page_aligned)
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*(.bss)
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__bss_stop = .;
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}
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.brk : AT(ADDR(.brk) - LOAD_OFFSET) {
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. = ALIGN(PAGE_SIZE);
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__brk_base = . ;
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. += 64 * 1024; /* 64k slop space */
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. += 64 * 1024 ; /* 64k alignment slop space */
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*(.brk_reservation) /* areas brk users have reserved */
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__brk_limit = . ;
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}
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