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authorCatalin Marinas <catalin.marinas@arm.com>2005-06-29 15:34:39 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-06-29 15:34:39 +0100
commitaaaa3f9e51245be3215ff67bb3c7aaf5abb82f00 (patch)
tree3116e92b35d7424469d21f6758933352e9b84dfc /arch
parent9ec3c75cdeb57fa3c12a813c63706ece7fb63648 (diff)
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[PATCH] ARM: 2769/1: cpu_init() stack setup fix
Patch from Catalin Marinas The compiler allocates r14 for the stk variable in the __asm__ directive. This is a shadowed register and gets changed when the mode is changed, causing random values in the SP register. The patch adds a clobber for the r14 register. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/kernel/setup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 8cf733d..35b7273 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -359,7 +359,8 @@ void cpu_init(void)
"I" (offsetof(struct stack, abt[0])),
"I" (PSR_F_BIT | PSR_I_BIT | UND_MODE),
"I" (offsetof(struct stack, und[0])),
- "I" (PSR_F_BIT | PSR_I_BIT | SVC_MODE));
+ "I" (PSR_F_BIT | PSR_I_BIT | SVC_MODE)
+ : "r14");
}
static struct machine_desc * __init setup_machine(unsigned int nr)