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ANDROID: GKI: Add special linux_banner_ptr for modules

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We can't modify the original linux_banner symbol due to ramdump parsing
dependencies. So add an additional symbol pointer that just points at
it. This way ABI monitoring won't care about the value and
modules can still access the banner value.

Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 154586724
Bug: 154345163
Test: compile
Change-Id: I65678e02467b8754824a7527270a725741394fe3
This commit is contained in:
Will McVicker 2020-04-22 10:59:38 -07:00
parent 48fb994c74
commit 929c31bb5a
2 changed files with 4 additions and 1 deletions
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1
include/linux/printk.h
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@ -9,6 +9,7 @@
#include <linux/cache.h>
extern const char linux_banner[];
extern const char *linux_banner_ptr;
extern const char linux_proc_banner[];
#define PRINTK_MAX_SINGLE_HEADER_LEN 2

4
init/version.c
View File

@ -45,7 +45,9 @@ EXPORT_SYMBOL_GPL(init_uts_ns);
const char linux_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
EXPORT_SYMBOL_GPL(linux_banner);
const char *linux_banner_ptr = linux_banner;
EXPORT_SYMBOL_GPL(linux_banner_ptr);
const char linux_proc_banner[] =
"%s version %s"