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| author | Joakim Tjernlund <Joakim.Tjernlund@transmode.se> | 2010-10-14 11:51:44 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-10-18 22:39:37 +0200 |
| commit | d1e0b10accdbac2e0a8b2cbf7c589645442f87c5 (patch) | |
| tree | b818dd380265c89f435900b03c49a1cbf07534d4 /arch/powerpc/cpu/mpc8220 | |
| parent | d98b0523cfaaedeecb263b15c121c0727b0d80b9 (diff) | |
| download | u-boot-imx-d1e0b10accdbac2e0a8b2cbf7c589645442f87c5.zip u-boot-imx-d1e0b10accdbac2e0a8b2cbf7c589645442f87c5.tar.gz u-boot-imx-d1e0b10accdbac2e0a8b2cbf7c589645442f87c5.tar.bz2 | |
powerpc: do not fixup NULL ptrs
The fixup routine must not fixup NULL pointers.
Problem can be seen by
char *testfun(void) __attribute__((weak));
char *(*myfun)(void) = testfun;
Then add
printf("myfun:%p, &myfun:%p\n", myfun, &myfun);
before relocation and after relocation.
myfun should be NULL in both cases but it is not.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Diffstat (limited to 'arch/powerpc/cpu/mpc8220')
| -rw-r--r-- | arch/powerpc/cpu/mpc8220/start.S | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/mpc8220/start.S b/arch/powerpc/cpu/mpc8220/start.S index 320ad4e..b5c160b 100644 --- a/arch/powerpc/cpu/mpc8220/start.S +++ b/arch/powerpc/cpu/mpc8220/start.S @@ -641,10 +641,12 @@ in_ram: beq 4f 3: lwzu r4,4(r3) lwzux r0,r4,r11 + cmpwi r0,0 add r0,r0,r11 stw r10,0(r3) + beq- 5f stw r0,0(r4) - bdnz 3b +5: bdnz 3b 4: clear_bss: /* |