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7082c9e656
Separate setjmp.h into an architecture independent part and an architecture specific part. This simplifies moving from using struct jmp_buf_data directly to using type jmp_buf in our code which is the C compliant way. Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
40 lines
967 B
C
40 lines
967 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _SETJMP_H_
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#define _SETJMP_H_ 1
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#ifdef CONFIG_HAVE_SETJMP
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#include <asm/setjmp.h>
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#else
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struct jmp_buf_data {
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};
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#endif
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/**
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* typedef jmp_buf - information needed to restore a calling environment
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*/
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typedef struct jmp_buf_data jmp_buf[1];
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/**
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* setjmp() - prepare for a long jump
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*
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* Registers, the stack pointer, and the return address are saved in the
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* jump bufffer. The function returns zero afterwards. When longjmp() is
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* executed the function returns a second time with a non-zero value.
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*
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* @env: jump buffer used to store register values
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* Return: 0 after setting up jump buffer, non-zero after longjmp()
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*/
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int setjmp(jmp_buf env);
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/**
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* longjmp() - long jump
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*
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* Jump back to the address and the register state saved by setjmp().
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*
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* @env: jump buffer
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* @val: value to be returned by setjmp(), 0 is replaced by 1
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*/
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void longjmp(jmp_buf env, int val);
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#endif /* _SETJMP_H_ */
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