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arm: lib: fix push/pop-section directives 

With the existing code, function symbols are defined in .text, and the
body is defined in .text.xxx. This causes (at least some version of) the
linker not to emit the function body into the final binary, since it's
part of a different section to the symbols being referenced. This of
course causes a wide variety of failures.

This change moves the push/pop-section directives before the function
symbols, and after any relate ENDPROC macro invocations, so that symbols
and bodies are all in the "pushed" sections, and thus the function bodies
are emitted into the binary.

This solves (at least) the boot problems currently seen on Tegra systems
that use SPL (i.e. all ARMv7 Tegras).

Fixes: 13b0a91a6d ("arm: lib: Split asm symbols into different .text subsections")
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Stephen Warren 2016-06-03 13:05:11 -06:00 committed by Tom Rini
parent edb697cfcc
commit b2f1858455
7 changed files with 34 additions and 34 deletions
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4
arch/arm/lib/ashldi3.S
View File

@ -15,9 +15,9 @@
#define ah r1
#endif
.pushsection .text.__ashldi3, "ax"
ENTRY(__ashldi3)
ENTRY(__aeabi_llsl)
.pushsection .text.__ashldi3, "ax"
subs r3, r2, #32
rsb ip, r2, #32
@ -29,6 +29,6 @@ ENTRY(__aeabi_llsl)
mov al, al, lsl r2
ret lr
.popsection
ENDPROC(__ashldi3)
ENDPROC(__aeabi_llsl)
.popsection

4
arch/arm/lib/ashrdi3.S
View File

@ -15,9 +15,9 @@
#define ah r1
#endif
.pushsection .text.__ashrdi3, "ax"
ENTRY(__ashrdi3)
ENTRY(__aeabi_lasr)
.pushsection .text.__ashrdi3, "ax"
subs r3, r2, #32
rsb ip, r2, #32
@ -29,6 +29,6 @@ ENTRY(__aeabi_lasr)
mov ah, ah, asr r2
ret lr
.popsection
ENDPROC(__ashrdi3)
ENDPROC(__aeabi_lasr)
.popsection

4
arch/arm/lib/div64.S
View File

@ -45,9 +45,9 @@
* Clobbered regs: xl, ip
*/
.pushsection .text.__do_div64, "ax"
ENTRY(__do_div64)
UNWIND(.fnstart)
.pushsection .text.__do_div64, "ax"
@ Test for easy paths first.
subs ip, r4, #1
@ -193,7 +193,6 @@ UNWIND(.fnstart)
moveq yh, xh
moveq xh, #0
reteq lr
.popsection
UNWIND(.fnend)
UNWIND(.fnstart)
@ -212,3 +211,4 @@ Ldiv0_64:
UNWIND(.fnend)
ENDPROC(__do_div64)
.popsection

44
arch/arm/lib/lib1funcs.S
View File

@ -193,10 +193,10 @@
.endm
.pushsection .text.__udivsi3, "ax"
ENTRY(__udivsi3)
ENTRY(__aeabi_uidiv)
UNWIND(.fnstart)
.pushsection .text.__udivsi3, "ax"
subs r2, r1, #1
reteq lr
@ -220,14 +220,14 @@ UNWIND(.fnstart)
mov r0, r0, lsr r2
ret lr
.popsection
UNWIND(.fnend)
ENDPROC(__udivsi3)
ENDPROC(__aeabi_uidiv)
.popsection
.pushsection .text.__umodsi3, "ax"
ENTRY(__umodsi3)
UNWIND(.fnstart)
.pushsection .text.__umodsi3, "ax"
subs r2, r1, #1 @ compare divisor with 1
bcc Ldiv0
@ -241,14 +241,14 @@ UNWIND(.fnstart)
ret lr
.popsection
UNWIND(.fnend)
ENDPROC(__umodsi3)
.popsection
.pushsection .text.__divsi3, "ax"
ENTRY(__divsi3)
ENTRY(__aeabi_idiv)
UNWIND(.fnstart)
.pushsection .text.__divsi3, "ax"
cmp r1, #0
eor ip, r0, r1 @ save the sign of the result.
@ -285,14 +285,14 @@ UNWIND(.fnstart)
rsbmi r0, r0, #0
ret lr
.popsection
UNWIND(.fnend)
ENDPROC(__divsi3)
ENDPROC(__aeabi_idiv)
.popsection
.pushsection .text.__modsi3, "ax"
ENTRY(__modsi3)
UNWIND(.fnstart)
.pushsection .text.__modsi3, "ax"
cmp r1, #0
beq Ldiv0
@ -312,16 +312,16 @@ UNWIND(.fnstart)
rsbmi r0, r0, #0
ret lr
.popsection
UNWIND(.fnend)
ENDPROC(__modsi3)
.popsection
#ifdef CONFIG_AEABI
.pushsection .text.__aeabi_uidivmod, "ax"
ENTRY(__aeabi_uidivmod)
UNWIND(.fnstart)
UNWIND(.save {r0, r1, ip, lr} )
.pushsection .text.__aeabi_uidivmod, "ax"
stmfd sp!, {r0, r1, ip, lr}
bl __aeabi_uidiv
@ -330,14 +330,14 @@ UNWIND(.save {r0, r1, ip, lr} )
sub r1, r1, r3
ret lr
.popsection
UNWIND(.fnend)
ENDPROC(__aeabi_uidivmod)
.popsection
.pushsection .text.__aeabi_uidivmod, "ax"
ENTRY(__aeabi_idivmod)
UNWIND(.fnstart)
UNWIND(.save {r0, r1, ip, lr} )
.pushsection .text.__aeabi_uidivmod, "ax"
stmfd sp!, {r0, r1, ip, lr}
bl __aeabi_idiv
@ -346,31 +346,31 @@ UNWIND(.save {r0, r1, ip, lr} )
sub r1, r1, r3
ret lr
.popsection
UNWIND(.fnend)
ENDPROC(__aeabi_idivmod)
.popsection
#endif
.pushsection .text.Ldiv0, "ax"
Ldiv0:
UNWIND(.fnstart)
UNWIND(.pad #4)
UNWIND(.save {lr})
.pushsection .text.Ldiv0, "ax"
str lr, [sp, #-8]!
bl __div0
mov r0, #0 @ About as wrong as it could be.
ldr pc, [sp], #8
.popsection
UNWIND(.fnend)
ENDPROC(Ldiv0)
.popsection
.pushsection .text.__gnu_thumb1_case_sqi, "ax"
/* Thumb-1 specialities */
#if defined(CONFIG_SYS_THUMB_BUILD) && !defined(CONFIG_HAS_THUMB2)
ENTRY(__gnu_thumb1_case_sqi)
.pushsection .text.__gnu_thumb1_case_sqi, "ax"
push {r1}
mov r1, lr
lsrs r1, r1, #1
@ -380,11 +380,11 @@ ENTRY(__gnu_thumb1_case_sqi)
add lr, lr, r1
pop {r1}
bx lr
.popsection
ENDPROC(__gnu_thumb1_case_sqi)
.popsection
_.pushsection .text.__gnu_thumb1_case_uqi, "ax"
ENTRY(__gnu_thumb1_case_uqi)
.pushsection .text.__gnu_thumb1_case_uqi, "ax"
push {r1}
mov r1, lr
lsrs r1, r1, #1
@ -394,11 +394,11 @@ ENTRY(__gnu_thumb1_case_uqi)
add lr, lr, r1
pop {r1}
bx lr
.popsection
ENDPROC(__gnu_thumb1_case_uqi)
.popsection
ENTRY(__gnu_thumb1_case_shi)
.pushsection .text.__gnu_thumb1_case_shi, "ax"
ENTRY(__gnu_thumb1_case_shi)
push {r0, r1}
mov r1, lr
lsrs r1, r1, #1
@ -409,11 +409,11 @@ ENTRY(__gnu_thumb1_case_shi)
add lr, lr, r1
pop {r0, r1}
bx lr
.popsection
ENDPROC(__gnu_thumb1_case_shi)
.popsection
ENTRY(__gnu_thumb1_case_uhi)
.pushsection .text.__gnu_thumb1_case_uhi, "ax"
ENTRY(__gnu_thumb1_case_uhi)
push {r0, r1}
mov r1, lr
lsrs r1, r1, #1
@ -424,6 +424,6 @@ ENTRY(__gnu_thumb1_case_uhi)
add lr, lr, r1
pop {r0, r1}
bx lr
.popsection
ENDPROC(__gnu_thumb1_case_uhi)
.popsection
#endif

4
arch/arm/lib/lshrdi3.S
View File

@ -15,9 +15,9 @@
#define ah r1
#endif
.pushsection .text.__lshldi3, "ax"
ENTRY(__lshrdi3)
ENTRY(__aeabi_llsr)
.pushsection .text.__lshldi3, "ax"
subs r3, r2, #32
rsb ip, r2, #32
@ -29,6 +29,6 @@ ENTRY(__aeabi_llsr)
mov ah, ah, lsr r2
ret lr
.popsection
ENDPROC(__lshrdi3)
ENDPROC(__aeabi_llsr)
.popsection

4
arch/arm/lib/muldi3.S
View File

@ -23,9 +23,9 @@
#define yh r3
#endif
.pushsection .text.__muldi3, "ax"
ENTRY(__muldi3)
ENTRY(__aeabi_lmul)
.pushsection .text.__muldi3, "ax"
mul xh, yl, xh
mla xh, xl, yh, xh
@ -43,6 +43,6 @@ ENTRY(__aeabi_lmul)
adc xh, xh, ip, lsr #16
ret lr
.popsection
ENDPROC(__muldi3)
ENDPROC(__aeabi_lmul)
.popsection

4
arch/arm/lib/uldivmod.S
View File

@ -33,8 +33,8 @@ THUMB(
TMP .req r8
)
ENTRY(__aeabi_uldivmod)
.pushsection .text.__aeabi_uldivmod, "ax"
ENTRY(__aeabi_uldivmod)
stmfd sp!, {r4, r5, r6, r7, THUMB(TMP,) lr}
@ Test if B == 0
@ -242,5 +242,5 @@ L_div_by_0:
mov R_0, #0
mov R_1, #0
ldmfd sp!, {r4, r5, r6, r7, THUMB(TMP,) pc}
.popsection
ENDPROC(__aeabi_uldivmod)
.popsection