aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arc/kernel
diff options
context:
space:
mode:
authorVineet Gupta <vgupta@synopsys.com>2013-05-25 04:33:25 -0400
committerVineet Gupta <vgupta@synopsys.com>2013-06-27 05:05:32 -0400
commit5a45da02cf040ae7eacc9da10f6e8e369a220863 (patch)
tree27e52dc1a1eda9c3508764bf0f3fcb5a085f43a5 /arch/arc/kernel
parent05b016ecf5e7a8c24409d8e9effb5d2ec9107708 (diff)
ARC: Adjustments for gcc 4.8
* DWARF unwinder related + Force DWARF2 compliant .debug_frame (gcc 4.8 defaults to DWARF4 which kernel unwinder can't grok). + Discard the additional .eh_frame generated + Discard the dwarf4 debug info generated by -gdwarf-2 for normal no debug case * 4.8 already uses arc600 multilibs for -mno-mpy * switch to using uclibc compiler (to get -mmedium-calls and -mno-sdata) and also since buildroot can only use 1 toolchain Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel')
-rw-r--r--arch/arc/kernel/vmlinux.lds.S24
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/arc/kernel/vmlinux.lds.S b/arch/arc/kernel/vmlinux.lds.S
index d3c92f52d444..2555f5886af6 100644
--- a/arch/arc/kernel/vmlinux.lds.S
+++ b/arch/arc/kernel/vmlinux.lds.S
@@ -125,6 +125,11 @@ SECTIONS
125 *(.debug_frame) 125 *(.debug_frame)
126 __end_unwind = .; 126 __end_unwind = .;
127 } 127 }
128 /*
129 * gcc 4.8 generates this for -fasynchonous-unwind-tables,
130 * while we still use the .debug_frame based unwinder
131 */
132 /DISCARD/ : { *(.eh_frame) }
128#else 133#else
129 /DISCARD/ : { *(.debug_frame) } 134 /DISCARD/ : { *(.debug_frame) }
130#endif 135#endif
@@ -142,15 +147,18 @@ SECTIONS
142 *(.arcextmap.*) 147 *(.arcextmap.*)
143 } 148 }
144 149
150#ifndef CONFIG_DEBUG_INFO
145 /* open-coded because we need .debug_frame seperately for unwinding */ 151 /* open-coded because we need .debug_frame seperately for unwinding */
146 .debug_aranges 0 : { *(.debug_aranges) } 152 /DISCARD/ : { *(.debug_aranges) }
147 .debug_pubnames 0 : { *(.debug_pubnames) } 153 /DISCARD/ : { *(.debug_pubnames) }
148 .debug_info 0 : { *(.debug_info) } 154 /DISCARD/ : { *(.debug_info) }
149 .debug_abbrev 0 : { *(.debug_abbrev) } 155 /DISCARD/ : { *(.debug_abbrev) }
150 .debug_line 0 : { *(.debug_line) } 156 /DISCARD/ : { *(.debug_line) }
151 .debug_str 0 : { *(.debug_str) } 157 /DISCARD/ : { *(.debug_str) }
152 .debug_loc 0 : { *(.debug_loc) } 158 /DISCARD/ : { *(.debug_loc) }
153 .debug_macinfo 0 : { *(.debug_macinfo) } 159 /DISCARD/ : { *(.debug_macinfo) }
160 /DISCARD/ : { *(.debug_ranges) }
161#endif
154 162
155#ifdef CONFIG_ARC_HAS_DCCM 163#ifdef CONFIG_ARC_HAS_DCCM
156 . = CONFIG_ARC_DCCM_BASE; 164 . = CONFIG_ARC_DCCM_BASE;