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rk27xx: Implement HAVE_INIT_ATTR magic

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This reclaims over 7kB of ram.

Change-Id: I4a89c9a673ada7959311f320900060f6db303c07
This commit is contained in:
Marcin Bukat 2014-01-10 08:56:40 +01:00
parent 837cad0d38
commit 9cd3444e27
3 changed files with 42 additions and 10 deletions
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14
firmware/target/arm/rk27xx/crt0.S
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@ -149,6 +149,20 @@ entry_point:
strhi r1, [r2], #4
bhi 1b
#ifdef HAVE_INIT_ATTR
/* Copy init section to the codec buffer
* before .bss zeroing
*/
ldr r2, =_initstart
ldr r3, =_initend
ldr r4, =_initcopy
1:
cmp r3, r2
ldrhi r1, [r4], #4
strhi r1, [r2], #4
bhi 1b
#endif
/* Initialise bss, ibss section to zero */
ldr r2, =_edata
ldr r3, =_end