arm: generalize lib/bss.c into lib/sections.c

File arch/arm/lib/bss.c was initially defined for BSS only, but is now going to also contain definitions for other section-boundary-related symbols, so rename it for better accuracy. Also, remove useless 'used' attributes. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Tested-by: Lubomir Popov <lpopov@mm-sol.com> Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>

arm: generalize lib/bss.c into lib/sections.c
File arch/arm/lib/bss.c was initially defined for BSS only, but is now going to also contain definitions for other section-boundary-related symbols, so rename it for better accuracy. Also, remove useless 'used' attributes. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Tested-by: Lubomir Popov <lpopov@mm-sol.com> Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Albert ARIBAUD
1 parent 09d81184e1
Showing 3 changed files with 40 additions and 40 deletions Side-by-side Diff
arch/arm/lib/Makefile
arch/arm/lib/bss.c
arch/arm/lib/sections.c
@@ -43,7 +43,7 @@
 ifndef CONFIG_SYS_GENERIC_BOARD
 COBJS-y	+= board.o
 endif
-COBJS-y += bss.o
+COBJS-y += sections.o
  
 COBJS-y	+= bootm.o
 COBJS-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
-/*
- * Copyright 2013 Albert ARIBAUD <albert.u.boot@aribaud.net>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/**
- * These two symbols are declared in a C file so that the linker
- * uses R_ARM_RELATIVE relocation, rather than the R_ARM_ABS32 one
- * it would use if the symbols were defined in the linker file.
- * Using only R_ARM_RELATIVE relocation ensures that references to
- * the symbols are correct after as well as before relocation.
- *
- * We need a 0-byte-size type for these symbols, and the compiler
- * does not allow defining objects of C type 'void'. Using an empty
- * struct is allowed by the compiler, but causes gcc versions 4.4 and
- * below to complain about aliasing. Therefore we use the next best
- * thing: zero-sized arrays, which are both 0-byte-size and exempt from
- * aliasing warnings.
- */
-
-char __bss_start[0] __attribute__((used, section(".__bss_start")));
-char __bss_end[0] __attribute__((used, section(".__bss_end")));
+/*
+ * Copyright 2013 Albert ARIBAUD <albert.u.boot@aribaud.net>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/**
+ * These two symbols are declared in a C file so that the linker
+ * uses R_ARM_RELATIVE relocation, rather than the R_ARM_ABS32 one
+ * it would use if the symbols were defined in the linker file.
+ * Using only R_ARM_RELATIVE relocation ensures that references to
+ * the symbols are correct after as well as before relocation.
+ *
+ * We need a 0-byte-size type for these symbols, and the compiler
+ * does not allow defining objects of C type 'void'. Using an empty
+ * struct is allowed by the compiler, but causes gcc versions 4.4 and
+ * below to complain about aliasing. Therefore we use the next best
+ * thing: zero-sized arrays, which are both 0-byte-size and exempt from
+ * aliasing warnings.
+ */
+
+char __bss_start[0] __attribute__((section(".__bss_start")));
+char __bss_end[0] __attribute__((section(".__bss_end")));
...	...	@@ -43,7 +43,7 @@
43	43	ifndef CONFIG_SYS_GENERIC_BOARD
44	44	COBJS-y += board.o
45	45	endif
46		-COBJS-y += bss.o
	46	+COBJS-y += sections.o
47	47
48	48	COBJS-y += bootm.o
49	49	COBJS-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
1		-/*
2		- * Copyright 2013 Albert ARIBAUD <albert.u.boot@aribaud.net>
3		- *
4		- * See file CREDITS for list of people who contributed to this
5		- * project.
6		- *
7		- * This program is free software; you can redistribute it and/or
8		- * modify it under the terms of the GNU General Public License as
9		- * published by the Free Software Foundation; either version 2 of
10		- * the License, or (at your option) any later version.
11		- *
12		- * This program is distributed in the hope that it will be useful,
13		- * but WITHOUT ANY WARRANTY; without even the implied warranty of
14		- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15		- * GNU General Public License for more details.
16		- *
17		- * You should have received a copy of the GNU General Public License
18		- * along with this program; if not, write to the Free Software
19		- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20		- * MA 02111-1307 USA
21		- */
22		-
23		-/**
24		- * These two symbols are declared in a C file so that the linker
25		- * uses R_ARM_RELATIVE relocation, rather than the R_ARM_ABS32 one
26		- * it would use if the symbols were defined in the linker file.
27		- * Using only R_ARM_RELATIVE relocation ensures that references to
28		- * the symbols are correct after as well as before relocation.
29		- *
30		- * We need a 0-byte-size type for these symbols, and the compiler
31		- * does not allow defining objects of C type 'void'. Using an empty
32		- * struct is allowed by the compiler, but causes gcc versions 4.4 and
33		- * below to complain about aliasing. Therefore we use the next best
34		- * thing: zero-sized arrays, which are both 0-byte-size and exempt from
35		- * aliasing warnings.
36		- */
37		-
38		-char __bss_start[0] __attribute__((used, section(".__bss_start")));
39		-char __bss_end[0] __attribute__((used, section(".__bss_end")));
	1	+/*
	2	+ * Copyright 2013 Albert ARIBAUD <albert.u.boot@aribaud.net>
	3	+ *
	4	+ * See file CREDITS for list of people who contributed to this
	5	+ * project.
	6	+ *
	7	+ * This program is free software; you can redistribute it and/or
	8	+ * modify it under the terms of the GNU General Public License as
	9	+ * published by the Free Software Foundation; either version 2 of
	10	+ * the License, or (at your option) any later version.
	11	+ *
	12	+ * This program is distributed in the hope that it will be useful,
	13	+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	+ * GNU General Public License for more details.
	16	+ *
	17	+ * You should have received a copy of the GNU General Public License
	18	+ * along with this program; if not, write to the Free Software
	19	+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	20	+ * MA 02111-1307 USA
	21	+ */
	22	+
	23	+/**
	24	+ * These two symbols are declared in a C file so that the linker
	25	+ * uses R_ARM_RELATIVE relocation, rather than the R_ARM_ABS32 one
	26	+ * it would use if the symbols were defined in the linker file.
	27	+ * Using only R_ARM_RELATIVE relocation ensures that references to
	28	+ * the symbols are correct after as well as before relocation.
	29	+ *
	30	+ * We need a 0-byte-size type for these symbols, and the compiler
	31	+ * does not allow defining objects of C type 'void'. Using an empty
	32	+ * struct is allowed by the compiler, but causes gcc versions 4.4 and
	33	+ * below to complain about aliasing. Therefore we use the next best
	34	+ * thing: zero-sized arrays, which are both 0-byte-size and exempt from
	35	+ * aliasing warnings.
	36	+ */
	37	+
	38	+char __bss_start[0] __attribute__((section(".__bss_start")));
	39	+char __bss_end[0] __attribute__((section(".__bss_end")));