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4072572b0f
On powerpc, stack protector expects a function called
__stack_chk_fail_local() instead of __stack_chk_fail()
And some versions of GCC for powerpc default to TLS canary
instead of global canary, so always force GCC to use global
canary with -mstack-protector-guard=global
Cc: Joel Peshkin <joel.peshkin@broadcom.com>
Fixes: 4e9bce1243 ("Add support for stack-protector")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
25 lines
499 B
C
25 lines
499 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2021 Broadcom
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*/
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#include <common.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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unsigned long __stack_chk_guard = (unsigned long)(0xfeedf00ddeadbeef & ~0UL);
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void __stack_chk_fail(void)
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{
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void *ra;
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ra = __builtin_extract_return_addr(__builtin_return_address(0));
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panic("Stack smashing detected in function:\n%p relocated from %p",
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ra, ra - gd->reloc_off);
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}
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void __stack_chk_fail_local(void)
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{
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__stack_chk_fail();
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}
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