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| author | Rafal Jaworowski <raj@semihalf.com> | 2009-01-23 13:27:15 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-02-18 00:39:34 +0100 |
| commit | b84d7d8f1e1066f810866304a16a3583f88e7c98 (patch) | |
| tree | 78ce8c7adbc218545cd2d94185c54a593767fc58 /api_examples/glue.h | |
| parent | 86b4bafdfaf669ede8fd99044abc7e27ea29b4f5 (diff) | |
| download | u-boot-imx-b84d7d8f1e1066f810866304a16a3583f88e7c98.zip u-boot-imx-b84d7d8f1e1066f810866304a16a3583f88e7c98.tar.gz u-boot-imx-b84d7d8f1e1066f810866304a16a3583f88e7c98.tar.bz2 | |
API: Use stack pointer as API signature search hint in the glue layer.
De-hardcode range in RAM we search for the API signature. Instead use the stack
pointer as a hint to narrow down the range in which the signature could reside
(it is malloc'ed on the U-Boot heap, and is hoped to remain in some proximity
from stack area). Adjust PowerPC code in API demo to the new scheme.
Signed-off-by: Rafal Czubak <rcz@semihalf.com>
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Diffstat (limited to 'api_examples/glue.h')
| -rw-r--r-- | api_examples/glue.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/api_examples/glue.h b/api_examples/glue.h index a82f783..0adb8b3 100644 --- a/api_examples/glue.h +++ b/api_examples/glue.h @@ -30,12 +30,12 @@ #ifndef _API_GLUE_H_ #define _API_GLUE_H_ -#define API_SEARCH_START (255 * 1024 * 1024) /* start at 1MB below top RAM */ -#define API_SEARCH_END (256 * 1024 * 1024 - 1) /* ...and search to the end */ +#define API_SEARCH_LEN (3 * 1024 * 1024) /* 3MB search range */ -int syscall(int, int *, ...); -void * syscall_ptr; +extern void *syscall_ptr; +extern uint32_t search_hint; +int syscall(int, int *, ...); int api_search_sig(struct api_signature **sig); /* |