@@ -610,6 +610,8 @@
LDFLAGS_vmlinux += $(call ld-option, -X,)
endif
+LDFLAGS_vmlinux += --gc-sections
+
# Default kernel image to build when no specific target is given.
# KBUILD_IMAGE may be overruled on the command line or
# set in the environment
@@ -705,7 +707,7 @@
# Rule to link vmlinux - also used during CONFIG_KALLSYMS
# May be overridden by arch/$(ARCH)/Makefile
quiet_cmd_vmlinux__ ?= LD $@
- cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
+ cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ -Map $@.ldmap \
-T $(vmlinux-lds) $(vmlinux-init) \
--start-group $(vmlinux-main) --end-group \
$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)
@@ -157,7 +157,7 @@
. = ALIGN(32);
__start___ex_table = .;
#ifdef CONFIG_MMU
- *(__ex_table)
+ KEEP(*(__ex_table))
#endif
__stop___ex_table = .;
@@ -51,7 +51,7 @@
. = ALIGN(16);
___start___ex_table = .;
- *(__ex_table)
+ KEEP(*(__ex_table))
___stop___ex_table = .;
__etext = .;
@@ -36,7 +36,7 @@
/* Get rid of stuff from EXPORT_SYMBOL(foo). */
/DISCARD/ :
{
- *(__ksymtab_strings)
- *(__ksymtab)
+ KEEP(*(__ksymtab_strings))
+ *(__ksymtab)
}
}
@@ -72,7 +72,7 @@
.init.setup : { INIT_SETUP(16) }
#ifdef CONFIG_ETRAX_ARCH_V32
__start___param = .;
- __param : { *(__param) }
+ __param : { KEEP(*(__param)) }
__stop___param = .;
#endif
.initcall.init : {
@@ -88,7 +88,7 @@
#ifdef CONFIG_BLK_DEV_INITRD
.init.ramfs : {
__initramfs_start = .;
- *(.init.ramfs)
+ KEEP(*(.init.ramfs))
__initramfs_end = .;
}
#endif
@@ -112,7 +112,7 @@
. = ALIGN(0x4) ;
INIT_SETUP(0x4)
___setup_start = .;
- *(.init.setup)
+ KEEP(*(.init.setup))
. = ALIGN(0x4) ;
___setup_end = .;
INIT_CALLS
@@ -72,7 +72,7 @@
. = ALIGN(16); /* Exception table */
__start___ex_table = .;
- *(__ex_table)
+ KEEP(*(__ex_table))
__stop___ex_table = .;
*(.rodata .rodata.*)
@@ -129,16 +129,16 @@
/* Kernel symbol table: GPL-future symbols */
__start___kcrctab_gpl_future = .;
- *(__kcrctab_gpl_future)
+ KEEP(*(__kcrctab_gpl_future))
__stop___kcrctab_gpl_future = .;
/* Kernel symbol table: strings */
- *(__ksymtab_strings)
+ KEEP(*(__ksymtab_strings))
/* Built-in module parameters */
. = ALIGN(4) ;
__start___param = .;
- *(__param)
+ KEEP(*(__param))
__stop___param = .;
. = ALIGN(4) ;
@@ -122,7 +122,7 @@
.init.ramfs ALIGN(4096) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
__initramfs_start = .;
- *(.init.ramfs)
+ KEEP(*(.init.ramfs))
__initramfs_end = .;
. = ALIGN(4);
LONG(0);
@@ -51,7 +51,7 @@
. = ALIGN(PAGE_SIZE);
.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
__smp_locks = .;
- *(.smp_locks)
+ KEEP(*(.smp_locks))
__smp_locks_end = .;
}
@@ -62,9 +62,9 @@
INIT_DATA_SECTION(16)
. = ALIGN(4);
__alt_instructions = .;
- .altinstructions : { *(.altinstructions) }
+ .altinstructions : { KEEP(*(.altinstructions)) }
__alt_instructions_end = .;
- .altinstr_replacement : { *(.altinstr_replacement) }
+ .altinstr_replacement : { KEEP(*(.altinstr_replacement)) }
/* .exit.text is discard at runtime, not link time, to deal with references
from .altinstructions and .eh_frame */
.exit.text : { EXIT_TEXT; }
@@ -76,10 +76,10 @@
. = ALIGN(4);
.altinstructions : {
__alt_instructions = .;
- *(.altinstructions)
+ KEEP(*(.altinstructions))
__alt_instructions_end = .;
}
- .altinstr_replacement : { *(.altinstr_replacement) }
+ .altinstr_replacement : { KEEP(*(.altinstr_replacement)) }
/* .exit.text is discard at runtime, not link time, to deal with references
from .altinstructions and .eh_frame */
.exit.text : { *(.exit.text) }
@@ -162,46 +162,46 @@
. = VSYSCALL_ADDR;
.vsyscall_0 : AT(VLOAD(.vsyscall_0)) {
- *(.vsyscall_0)
+ KEEP(*(.vsyscall_0))
} :user
. = ALIGN(L1_CACHE_BYTES);
.vsyscall_fn : AT(VLOAD(.vsyscall_fn)) {
- *(.vsyscall_fn)
+ KEEP(*(.vsyscall_fn))
}
. = ALIGN(L1_CACHE_BYTES);
.vsyscall_gtod_data : AT(VLOAD(.vsyscall_gtod_data)) {
- *(.vsyscall_gtod_data)
+ KEEP(*(.vsyscall_gtod_data))
}
vsyscall_gtod_data = VVIRT(.vsyscall_gtod_data);
.vsyscall_clock : AT(VLOAD(.vsyscall_clock)) {
- *(.vsyscall_clock)
+ KEEP(*(.vsyscall_clock))
}
vsyscall_clock = VVIRT(.vsyscall_clock);
.vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) {
- *(.vsyscall_1)
+ KEEP(*(.vsyscall_1))
}
.vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) {
- *(.vsyscall_2)
+ KEEP(*(.vsyscall_2))
}
.vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) {
- *(.vgetcpu_mode)
+ KEEP(*(.vgetcpu_mode))
}
vgetcpu_mode = VVIRT(.vgetcpu_mode);
. = ALIGN(L1_CACHE_BYTES);
.jiffies : AT(VLOAD(.jiffies)) {
- *(.jiffies)
+ KEEP(*(.jiffies))
}
jiffies = VVIRT(.jiffies);
.vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) {
- *(.vsyscall_3)
+ KEEP(*(.vsyscall_3))
}
. = __vsyscall_0 + PAGE_SIZE;
@@ -252,12 +252,12 @@
. = ALIGN(8);
.altinstructions : AT(ADDR(.altinstructions) - LOAD_OFFSET) {
__alt_instructions = .;
- *(.altinstructions)
+ KEEP(*(.altinstructions))
__alt_instructions_end = .;
}
.altinstr_replacement : AT(ADDR(.altinstr_replacement) - LOAD_OFFSET) {
- *(.altinstr_replacement)
+ KEEP(*(.altinstr_replacement))
}
/*
@@ -290,7 +290,7 @@
. = ALIGN(PAGE_SIZE);
.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
__smp_locks = .;
- *(.smp_locks)
+ KEEP(*(.smp_locks))
. = ALIGN(PAGE_SIZE);
__smp_locks_end = .;
}
@@ -34,8 +34,8 @@
*(.gnu.linkonce.b.*)
}
- .altinstructions : { *(.altinstructions) }
- .altinstr_replacement : { *(.altinstr_replacement) }
+ .altinstructions : { KEEP(*(.altinstructions)) }
+ .altinstr_replacement : { KEEP(*(.altinstr_replacement)) }
/*
* Align the actual code well away from the non-instruction data.
@@ -229,25 +229,25 @@
/* PCI quirks */ \
.pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
- *(.pci_fixup_early) \
+ KEEP(*(.pci_fixup_early)) \
VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
- *(.pci_fixup_header) \
+ KEEP(*(.pci_fixup_header)) \
VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
- *(.pci_fixup_final) \
+ KEEP(*(.pci_fixup_final)) \
VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
- *(.pci_fixup_enable) \
+ KEEP(*(.pci_fixup_enable)) \
VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
- *(.pci_fixup_resume) \
+ KEEP(*(.pci_fixup_resume)) \
VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \
- *(.pci_fixup_resume_early) \
+ KEEP(*(.pci_fixup_resume_early)) \
VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \
VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \
- *(.pci_fixup_suspend) \
+ KEEP(*(.pci_fixup_suspend)) \
VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \
} \
\
@@ -270,76 +270,76 @@
/* Kernel symbol table: Normal symbols */ \
__ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ksymtab) = .; \
- *(__ksymtab) \
+ KEEP(*(__ksymtab)) \
VMLINUX_SYMBOL(__stop___ksymtab) = .; \
} \
\
/* Kernel symbol table: GPL-only symbols */ \
__ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
- *(__ksymtab_gpl) \
+ KEEP(*(__ksymtab_gpl)) \
VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
} \
\
/* Kernel symbol table: Normal unused symbols */ \
__ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
- *(__ksymtab_unused) \
+ KEEP(*(__ksymtab_unused)) \
VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
} \
\
/* Kernel symbol table: GPL-only unused symbols */ \
__ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
- *(__ksymtab_unused_gpl) \
+ KEEP(*(__ksymtab_unused_gpl)) \
VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
} \
\
/* Kernel symbol table: GPL-future-only symbols */ \
__ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
- *(__ksymtab_gpl_future) \
+ KEEP(*(__ksymtab_gpl_future)) \
VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
} \
\
/* Kernel symbol table: Normal symbols */ \
__kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___kcrctab) = .; \
- *(__kcrctab) \
+ KEEP(*(__kcrctab)) \
VMLINUX_SYMBOL(__stop___kcrctab) = .; \
} \
\
/* Kernel symbol table: GPL-only symbols */ \
__kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
- *(__kcrctab_gpl) \
+ KEEP(*(__kcrctab_gpl)) \
VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
} \
\
/* Kernel symbol table: Normal unused symbols */ \
__kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
- *(__kcrctab_unused) \
+ KEEP(*(__kcrctab_unused)) \
VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
} \
\
/* Kernel symbol table: GPL-only unused symbols */ \
__kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
- *(__kcrctab_unused_gpl) \
+ KEEP(*(__kcrctab_unused_gpl)) \
VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
} \
\
/* Kernel symbol table: GPL-future-only symbols */ \
__kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
- *(__kcrctab_gpl_future) \
+ KEEP(*(__kcrctab_gpl_future)) \
VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
} \
\
/* Kernel symbol table: strings */ \
__ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
- *(__ksymtab_strings) \
+ KEEP(*(__ksymtab_strings)) \
} \
\
/* __*init sections */ \
@@ -356,7 +356,7 @@
/* Built-in module parameters. */ \
__param : AT(ADDR(__param) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___param) = .; \
- *(__param) \
+ KEEP(*(__param)) \
VMLINUX_SYMBOL(__stop___param) = .; \
. = ALIGN((align)); \
VMLINUX_SYMBOL(__end_rodata) = .; \
@@ -371,7 +371,7 @@
#define SECURITY_INIT \
.security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__security_initcall_start) = .; \
- *(.security_initcall.init) \
+ KEEP(*(.security_initcall.init)) \
VMLINUX_SYMBOL(__security_initcall_end) = .; \
}
@@ -424,7 +424,7 @@
#endif
/* Section used for early init (in .S files) */
-#define HEAD_TEXT *(.head.text)
+#define HEAD_TEXT KEEP(*(.head.text))
#define HEAD_TEXT_SECTION \
.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \
@@ -438,7 +438,7 @@
. = ALIGN(align); \
__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__start___ex_table) = .; \
- *(__ex_table) \
+ KEEP(*(__ex_table)) \
VMLINUX_SYMBOL(__stop___ex_table) = .; \
}
@@ -591,29 +591,29 @@
#define INIT_SETUP(initsetup_align) \
. = ALIGN(initsetup_align); \
VMLINUX_SYMBOL(__setup_start) = .; \
- *(.init.setup) \
+ KEEP(*(.init.setup)) \
VMLINUX_SYMBOL(__setup_end) = .;
#define INITCALLS \
- *(.initcallearly.init) \
+ KEEP(*(.initcallearly.init)) \
VMLINUX_SYMBOL(__early_initcall_end) = .; \
- *(.initcall0.init) \
- *(.initcall0s.init) \
- *(.initcall1.init) \
- *(.initcall1s.init) \
- *(.initcall2.init) \
- *(.initcall2s.init) \
- *(.initcall3.init) \
- *(.initcall3s.init) \
- *(.initcall4.init) \
- *(.initcall4s.init) \
- *(.initcall5.init) \
- *(.initcall5s.init) \
- *(.initcallrootfs.init) \
- *(.initcall6.init) \
- *(.initcall6s.init) \
- *(.initcall7.init) \
- *(.initcall7s.init)
+ KEEP(*(.initcall0.init)) \
+ KEEP(*(.initcall0s.init)) \
+ KEEP(*(.initcall1.init)) \
+ KEEP(*(.initcall1s.init)) \
+ KEEP(*(.initcall2.init)) \
+ KEEP(*(.initcall2s.init)) \
+ KEEP(*(.initcall3.init)) \
+ KEEP(*(.initcall3s.init)) \
+ KEEP(*(.initcall4.init)) \
+ KEEP(*(.initcall4s.init)) \
+ KEEP(*(.initcall5.init)) \
+ KEEP(*(.initcall5s.init)) \
+ KEEP(*(.initcallrootfs.init)) \
+ KEEP(*(.initcall6.init)) \
+ KEEP(*(.initcall6s.init)) \
+ KEEP(*(.initcall7.init)) \
+ KEEP(*(.initcall7s.init))
#define INIT_CALLS \
VMLINUX_SYMBOL(__initcall_start) = .; \
@@ -622,19 +622,19 @@
#define CON_INITCALL \
VMLINUX_SYMBOL(__con_initcall_start) = .; \
- *(.con_initcall.init) \
+ KEEP(*(.con_initcall.init)) \
VMLINUX_SYMBOL(__con_initcall_end) = .;
#define SECURITY_INITCALL \
VMLINUX_SYMBOL(__security_initcall_start) = .; \
- *(.security_initcall.init) \
+ KEEP(*(.security_initcall.init)) \
VMLINUX_SYMBOL(__security_initcall_end) = .;
#ifdef CONFIG_BLK_DEV_INITRD
#define INIT_RAM_FS \
. = ALIGN(PAGE_SIZE); \
VMLINUX_SYMBOL(__initramfs_start) = .; \
- *(.init.ramfs) \
+ KEEP(*(.init.ramfs)) \
VMLINUX_SYMBOL(__initramfs_end) = .;
#else
#define INIT_RAM_FS