Rewrite the assembly serial_early_puts() helper to place the strings
in the .rodata section rather than embedding them directly in the
.text section. Using .text is a little simpler, but it doesn't let
people execute out of internal L1 sram (since core reads don't work
on those regions).
Signed-off-by: Mike Frysinger <vap...@gentoo.org>
---
arch/blackfin/cpu/serial.h | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/blackfin/cpu/serial.h b/arch/blackfin/cpu/serial.h
index f649e40..8a076dd 100644
--- a/arch/blackfin/cpu/serial.h
+++ b/arch/blackfin/cpu/serial.h
@@ -288,16 +288,16 @@ static inline void serial_early_puts(const char *s)
*/
#ifdef CONFIG_DEBUG_EARLY_SERIAL
# define serial_early_puts(str) \
- call _get_pc; \
- jump 1f; \
+ .section .rodata; \
+ 7: \
.ascii "Early:"; \
.ascii __FILE__; \
.ascii ": "; \
.ascii str; \
.asciz "\n"; \
- .align 4; \
-1: \
- R0 += 2; \
+ .previous; \
+ R0.L = 7b; \
+ R0.H = 7b; \
call _serial_puts;
#else
# define serial_early_puts(str)
--
1.7.6
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