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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-21 13:17:25 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-05-08 16:33:50 (GMT) |
| commit | 14327c662822e5e874cb971a7162067519300ca8 (patch) | |
| tree | 3d3424072fa6ef753c8ffaa2eb79005574149a3e /arch/arm/kernel/head-nommu.S | |
| parent | 5890298a834c04aaa9b5fb576e5f2b77e79ab38d (diff) | |
| download | linux-14327c662822e5e874cb971a7162067519300ca8.tar.xz | |
ARM: replace BSYM() with badr assembly macro
BSYM() was invented to allow us to work around a problem with the
assembler, where local symbols resolved by the assembler for the 'adr'
instruction did not take account of their ISA.
Since we don't want BSYM() used elsewhere, replace BSYM() with a new
macro 'badr', which is like the 'adr' pseudo-op, but with the BSYM()
mechanics integrated into it. This ensures that the BSYM()-ification
is only used in conjunction with 'adr'.
Acked-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/head-nommu.S')
| -rw-r--r-- | arch/arm/kernel/head-nommu.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index aebfbf7..b6f3cb6 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -46,7 +46,7 @@ ENTRY(stext) .arm ENTRY(stext) - THUMB( adr r9, BSYM(1f) ) @ Kernel is always entered in ARM. + THUMB( badr r9, 1f ) @ Kernel is always entered in ARM. THUMB( bx r9 ) @ If this is a Thumb-2 kernel, THUMB( .thumb ) @ switch to Thumb now. THUMB(1: ) @@ -79,7 +79,7 @@ ENTRY(stext) #endif ldr r13, =__mmap_switched @ address to jump to after @ initialising sctlr - adr lr, BSYM(1f) @ return (PIC) address + badr lr, 1f @ return (PIC) address ldr r12, [r10, #PROCINFO_INITFUNC] add r12, r12, r10 ret r12 @@ -115,7 +115,7 @@ ENTRY(secondary_startup) bl __setup_mpu @ Initialize the MPU #endif - adr lr, BSYM(__after_proc_init) @ return address + badr lr, __after_proc_init @ return address mov r13, r12 @ __secondary_switched address ldr r12, [r10, #PROCINFO_INITFUNC] add r12, r12, r10 |