powerpc: add --bss-plt to LDFLAGS

With some versions of gcc (that we know of 4.6.3 and 4.8.2 are affected) it is necessary to specify --bss-plt to get the final blrl in the _GOT2_TABLE_. Without this the last symbol does not get it's address relocated. For the P2041RDB board this ended up being NetArpWaitTimerStart which caused the ARP packets to timeout immediately. Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: Chris Packham <judge.packham@gmail.com> Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>

powerpc: add --bss-plt to LDFLAGS
With some versions of gcc (that we know of 4.6.3 and 4.8.2 are affected) it is necessary to specify --bss-plt to get the final blrl in the _GOT2_TABLE_. Without this the last symbol does not get it's address relocated. For the P2041RDB board this ended up being NetArpWaitTimerStart which caused the ARP packets to timeout immediately. Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: Chris Packham <judge.packham@gmail.com> Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Chris Packham · York Sun
1 parent 5273aa3834
Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff
arch/powerpc/config.mk
@@ -11,6 +11,7 @@
  
 CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
 LDFLAGS_FINAL += --gc-sections
+LDFLAGS_FINAL += --bss-plt
 PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections -fdata-sections \
 								-meabi
 PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2
...	...	@@ -11,6 +11,7 @@
11	11
12	12	CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
13	13	LDFLAGS_FINAL += --gc-sections
	14	+LDFLAGS_FINAL += --bss-plt
14	15	PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections -fdata-sections \
15	16	-meabi
16	17	PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2