Defines the linker macro EXTRA_RWDATA for the marker data section. It puts the marker data in a separate section that will not pollute the normal .data section, which minimize the cache impact. Markers need such a special section because they define a lot of spreaded and small data structures at multiple sites. This patch also creates the __markers_strings section (ro marker strings) and makes sure the __markers section is aligned by putting it before the __ksymtab_strings (not after). Signed-off-by: Mathieu Desnoyers Cc: Signed-off-by: Andrew Morton --- include/asm-generic/vmlinux.lds.h | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) Index: linux-2.6-lttng/include/asm-generic/vmlinux.lds.h =================================================================== --- linux-2.6-lttng.orig/include/asm-generic/vmlinux.lds.h 2007-05-08 17:07:12.000000000 -0400 +++ linux-2.6-lttng/include/asm-generic/vmlinux.lds.h 2007-05-08 17:09:12.000000000 -0400 @@ -116,21 +116,19 @@ *(__kcrctab_gpl_future) \ VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ } \ - \ - /* Kernel symbol table: strings */ \ - __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ - *(__ksymtab_strings) \ - } \ /* Kernel markers : pointers */ \ - .markers : AT(ADDR(.markers) - LOAD_OFFSET) { \ + __markers : AT(ADDR(__markers) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___markers) = .; \ - *(.markers) \ + *(__markers) \ VMLINUX_SYMBOL(__stop___markers) = .; \ } \ - .markers.c : AT(ADDR(.markers.c) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___markers_c) = .; \ - *(.markers.c) \ - VMLINUX_SYMBOL(__stop___markers_c) = .; \ + /* Kernel symbol table: strings */ \ + __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ + *(__ksymtab_strings) \ + } \ + /* Kernel markers : strings */ \ + __markers_strings : AT(ADDR(__markers_strings) - LOAD_OFFSET) { \ + *(__markers_strings) \ } \ __end_rodata = .; \ . = ALIGN(4096); \ @@ -145,6 +143,10 @@ \ . = ALIGN(4096); +#define EXTRA_RWDATA \ + . = ALIGN(8); \ + *(__markers_data) \ + #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__security_initcall_start) = .; \ @@ -241,4 +243,3 @@ *(.initcall6s.init) \ *(.initcall7.init) \ *(.initcall7s.init) - -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/