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Thumb-2: Implement the unified arch/arm/lib functions

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This patch adds the ARM/Thumb-2 unified support for the arch/arm/lib/*
files.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Catalin Marinas 2009-07-24 12:32:57 +01:00
parent 347c8b70b1
commit 8b592783a2
20 changed files with 229 additions and 98 deletions
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19
arch/arm/lib/copy_from_user.S
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@ -33,11 +33,15 @@
* Number of bytes NOT copied.
*/
#ifndef CONFIG_THUMB2_KERNEL
#define LDR1W_SHIFT 0
#else
#define LDR1W_SHIFT 1
#endif
#define STR1W_SHIFT 0
.macro ldr1w ptr reg abort
100: ldrt \reg, [\ptr], #4
.section __ex_table, "a"
.long 100b, \abort
.previous
ldrusr \reg, \ptr, 4, abort=\abort
.endm
.macro ldr4w ptr reg1 reg2 reg3 reg4 abort
@ -53,14 +57,11 @@
.endm
.macro ldr1b ptr reg cond=al abort
100: ldr\cond\()bt \reg, [\ptr], #1
.section __ex_table, "a"
.long 100b, \abort
.previous
ldrusr \reg, \ptr, 1, \cond, abort=\abort
.endm
.macro str1w ptr reg abort
str \reg, [\ptr], #4
W(str) \reg, [\ptr], #4
.endm
.macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort