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ARM EABI: add new helper functions resp. function names

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The ARM EABI defines new names for GCC helper functions,
and GCC seems to need some new functions as well.

This patch is a minimal-invasive approach to fix problems with EABI
conformant tool chains (to be used with "USE_PRIVATE_LIBGCC=yes").

Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Dirk Behme <dirk.behme@googlemail.com>
This commit is contained in:
Wolfgang Denk 2009-08-06 21:29:59 +02:00
parent 197324d7d9
commit 59b4d7471c
5 changed files with 33 additions and 9 deletions
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2
lib_arm/_ashldi3.S
View File

@ -35,7 +35,9 @@ Boston, MA 02110-1301, USA. */
#endif
.globl __ashldi3
.globl __aeabi_llsl
__ashldi3:
__aeabi_llsl:
subs r3, r2, #32
rsb ip, r2, #32

2
lib_arm/_ashrdi3.S
View File

@ -35,7 +35,9 @@ Boston, MA 02110-1301, USA. */
#endif
.globl __ashrdi3
.globl __aeabi_lasr
__ashrdi3:
__aeabi_lasr:
subs r3, r2, #32
rsb ip, r2, #32

2
lib_arm/_divsi3.S
View File

@ -96,7 +96,9 @@
.align 5
.globl __divsi3
.globl __aeabi_idiv
__divsi3:
__aeabi_idiv:
cmp r1, #0
eor ip, r0, r1 @ save the sign of the result.
beq Ldiv0

2
lib_arm/_lshrdi3.S
View File

@ -35,7 +35,9 @@ Boston, MA 02110-1301, USA. */
#endif
.globl __lshrdi3
.globl __aeabi_llsr
__lshrdi3:
__aeabi_llsr:
subs r3, r2, #32
rsb ip, r2, #32

34
lib_arm/_udivsi3.S
View File

@ -11,9 +11,12 @@ curbit .req r3
/* pc .req r15 */
.text
.globl __udivsi3
.type __udivsi3 ,function
.type __udivsi3 ,function
.globl __aeabi_uidiv
.type __aeabi_uidiv ,function
.align 0
__udivsi3 :
__udivsi3:
__aeabi_uidiv:
cmp divisor, #0
beq Ldiv0
mov curbit, #1
@ -68,10 +71,23 @@ Ldiv0:
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}
.size __udivsi3 , . - __udivsi3
/* # 235 "libgcc1.S" */
/* # 320 "libgcc1.S" */
/* # 421 "libgcc1.S" */
/* # 433 "libgcc1.S" */
/* # 456 "libgcc1.S" */
/* # 500 "libgcc1.S" */
/* # 580 "libgcc1.S" */
.globl __aeabi_uidivmod
__aeabi_uidivmod:
stmfd sp!, {r0, r1, ip, lr}
bl __aeabi_uidiv
ldmfd sp!, {r1, r2, ip, lr}
mul r3, r0, r2
sub r1, r1, r3
mov pc, lr
.globl __aeabi_idivmod
__aeabi_idivmod:
stmfd sp!, {r0, r1, ip, lr}
bl __aeabi_idiv
ldmfd sp!, {r1, r2, ip, lr}
mul r3, r0, r2
sub r1, r1, r3
mov pc, lr