diff options
author | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-09 15:38:43 -0400 |
---|---|---|
committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-30 11:56:11 -0400 |
commit | d4d9eab4ade468b6a97b6853fdd72e8f21474324 (patch) | |
tree | cc7ebd45a2fb7f4abc1bde7d362c8f174016dfa2 /arch/tile/lib | |
parent | 3fa17c395bb0c358745fbe0c8aa039d6cdac1735 (diff) |
tile: use proper .align directives on __ex_table sections
This may fix a reported bug where an R_TILEGX_64 in a module was not
pointing to an aligned address.
Reported-by: Simon Marchi <simon.marchi@polymtl.ca>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/lib')
-rw-r--r-- | arch/tile/lib/atomic_asm_32.S | 1 | ||||
-rw-r--r-- | arch/tile/lib/memcpy_32.S | 2 | ||||
-rw-r--r-- | arch/tile/lib/memcpy_user_64.c | 2 | ||||
-rw-r--r-- | arch/tile/lib/usercopy_32.S | 6 | ||||
-rw-r--r-- | arch/tile/lib/usercopy_64.S | 6 |
5 files changed, 17 insertions, 0 deletions
diff --git a/arch/tile/lib/atomic_asm_32.S b/arch/tile/lib/atomic_asm_32.S index 30638042691d..6bda3132cd61 100644 --- a/arch/tile/lib/atomic_asm_32.S +++ b/arch/tile/lib/atomic_asm_32.S @@ -164,6 +164,7 @@ STD_ENTRY_SECTION(__atomic\name, .text.atomic) STD_ENDPROC(__atomic\name) .ifc \bitwidth,32 .pushsection __ex_table,"a" + .align 4 .word 1b, __atomic\name .word 2b, __atomic\name .word __atomic\name, __atomic_bad_address diff --git a/arch/tile/lib/memcpy_32.S b/arch/tile/lib/memcpy_32.S index 2a419a6122db..8ba7626cfeb1 100644 --- a/arch/tile/lib/memcpy_32.S +++ b/arch/tile/lib/memcpy_32.S @@ -44,6 +44,7 @@ */ #define EX \ .pushsection __ex_table, "a"; \ + .align 4; \ .word 9f, memcpy_common_fixup; \ .popsection; \ 9 @@ -614,5 +615,6 @@ memcpy_fixup_loop: .size memcpy_common_fixup, . - memcpy_common_fixup .section __ex_table,"a" + .align 4 .word .Lcfu, .Lcopy_from_user_fixup_zero_remainder .word .Lctu, .Lcopy_to_user_fixup_done diff --git a/arch/tile/lib/memcpy_user_64.c b/arch/tile/lib/memcpy_user_64.c index 37440caa7370..88c7016492c4 100644 --- a/arch/tile/lib/memcpy_user_64.c +++ b/arch/tile/lib/memcpy_user_64.c @@ -31,6 +31,7 @@ ".pushsection .coldtext.memcpy,\"ax\";" \ "2: { move r0, %2; jrp lr };" \ ".section __ex_table,\"a\";" \ + ".align 8;" \ ".quad 1b, 2b;" \ ".popsection" \ : "=m" (*(p)) : "r" (v), "r" (n)); \ @@ -43,6 +44,7 @@ ".pushsection .coldtext.memcpy,\"ax\";" \ "2: { move r0, %2; jrp lr };" \ ".section __ex_table,\"a\";" \ + ".align 8;" \ ".quad 1b, 2b;" \ ".popsection" \ : "=r" (__v) : "m" (*(p)), "r" (n)); \ diff --git a/arch/tile/lib/usercopy_32.S b/arch/tile/lib/usercopy_32.S index 21ffa88ffe5f..bb4c127be6e9 100644 --- a/arch/tile/lib/usercopy_32.S +++ b/arch/tile/lib/usercopy_32.S @@ -36,6 +36,7 @@ strnlen_user_fault: { move r0, zero; jrp lr } ENDPROC(strnlen_user_fault) .section __ex_table,"a" + .align 4 .word 1b, strnlen_user_fault .popsection @@ -59,6 +60,7 @@ strncpy_from_user_fault: { movei r0, -EFAULT; jrp lr } ENDPROC(strncpy_from_user_fault) .section __ex_table,"a" + .align 4 .word 1b, strncpy_from_user_fault .popsection @@ -77,6 +79,7 @@ STD_ENTRY(clear_user_asm) bnzt r1, 1b 2: { move r0, r1; jrp lr } .pushsection __ex_table,"a" + .align 4 .word 1b, 2b .popsection @@ -86,6 +89,7 @@ STD_ENTRY(clear_user_asm) 2: { move r0, r1; jrp lr } STD_ENDPROC(clear_user_asm) .pushsection __ex_table,"a" + .align 4 .word 1b, 2b .popsection @@ -105,6 +109,7 @@ STD_ENTRY(flush_user_asm) 2: { move r0, r1; jrp lr } STD_ENDPROC(flush_user_asm) .pushsection __ex_table,"a" + .align 4 .word 1b, 2b .popsection @@ -124,5 +129,6 @@ STD_ENTRY(finv_user_asm) 2: { move r0, r1; jrp lr } STD_ENDPROC(finv_user_asm) .pushsection __ex_table,"a" + .align 4 .word 1b, 2b .popsection diff --git a/arch/tile/lib/usercopy_64.S b/arch/tile/lib/usercopy_64.S index f248d3196e5c..0d94844eb218 100644 --- a/arch/tile/lib/usercopy_64.S +++ b/arch/tile/lib/usercopy_64.S @@ -36,6 +36,7 @@ strnlen_user_fault: { move r0, zero; jrp lr } ENDPROC(strnlen_user_fault) .section __ex_table,"a" + .align 8 .quad 1b, strnlen_user_fault .popsection @@ -59,6 +60,7 @@ strncpy_from_user_fault: { movei r0, -EFAULT; jrp lr } ENDPROC(strncpy_from_user_fault) .section __ex_table,"a" + .align 8 .quad 1b, strncpy_from_user_fault .popsection @@ -77,6 +79,7 @@ STD_ENTRY(clear_user_asm) bnezt r1, 1b 2: { move r0, r1; jrp lr } .pushsection __ex_table,"a" + .align 8 .quad 1b, 2b .popsection @@ -86,6 +89,7 @@ STD_ENTRY(clear_user_asm) 2: { move r0, r1; jrp lr } STD_ENDPROC(clear_user_asm) .pushsection __ex_table,"a" + .align 8 .quad 1b, 2b .popsection @@ -105,6 +109,7 @@ STD_ENTRY(flush_user_asm) 2: { move r0, r1; jrp lr } STD_ENDPROC(flush_user_asm) .pushsection __ex_table,"a" + .align 8 .quad 1b, 2b .popsection @@ -124,5 +129,6 @@ STD_ENTRY(finv_user_asm) 2: { move r0, r1; jrp lr } STD_ENDPROC(finv_user_asm) .pushsection __ex_table,"a" + .align 8 .quad 1b, 2b .popsection |