Hi, Sascha and Ahmad, On Mon, Mar 01, 2021 at 12:01:05PM +0100, Ahmad Fatoum wrote: > From: Sascha Hauer <[email protected]> > > The header has been taken from glibc, the implementation itself is based > on the newlib implementation. > > Signed-off-by: Sascha Hauer <[email protected]> > Signed-off-by: Ahmad Fatoum <[email protected]> > --- > arch/mips/Kconfig | 1 + > arch/mips/include/asm/setjmp.h | 32 ++++++++++++++++++++++ > arch/mips/lib/Makefile | 1 + > arch/mips/lib/setjmp.S | 50 ++++++++++++++++++++++++++++++++++ > 4 files changed, 84 insertions(+) > create mode 100644 arch/mips/include/asm/setjmp.h > create mode 100644 arch/mips/lib/setjmp.S > > ... > > diff --git a/arch/mips/lib/setjmp.S b/arch/mips/lib/setjmp.S > new file mode 100644 > index 000000000000..b09a7c55293c > --- /dev/null > +++ b/arch/mips/lib/setjmp.S > @@ -0,0 +1,50 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > + > +#include <asm/regdef.h> > +#include <asm/asm.h> > +#include <linux/linkage.h> > + > +/* int setjmp (jmp_buf); */ > +LEAF(setjmp) > + sw ra, (0 * 4)(a0) > + sw sp, (1 * 4)(a0) > + sw s0, (2 * 4)(a0) > + sw s1, (3 * 4)(a0) > + sw s2, (4 * 4)(a0) > + sw s3, (5 * 4)(a0) > + sw s4, (6 * 4)(a0) > + sw s5, (7 * 4)(a0) > + sw s6, (8 * 4)(a0) > + sw s7, (9 * 4)(a0) > + sw fp, (10 * 4)(a0) > + move v0, zero > + j ra > +END(setjmp) > + > +/* volatile void longjmp (jmp_buf, int); */ > +LEAF(longjmp) > + lw ra, (0 * 4)(a0) > + lw sp, (1 * 4)(a0) > + lw s0, (2 * 4)(a0) > + lw s1, (3 * 4)(a0) > + lw s2, (4 * 4)(a0) > + lw s3, (5 * 4)(a0) > + lw s4, (6 * 4)(a0) > + lw s5, (7 * 4)(a0) > + lw s6, (8 * 4)(a0) > + lw s7, (9 * 4)(a0) > + lw fp, (10 * 4)(a0) > + bne a1, zero, 1f > + li a1, 1 > +1: > + move v0, a1 > + j ra > +END(longjmp) > + > +/* int initjmp(jmp_buf jmp, void __noreturn (*func)(void), void *stack_top); > */ > +LEAF(initjmp) > + sw a1, (0 * 4)(a0) > + sw a2, (1 * 4)(a0) > + move v0, zero > + j ra > +END(initjmp)
I would suggest using `REG_S/REG_L r, (n * SZREG)(a0)` here for the sake of MIPS64 targets. See arch/mips/include/asm/asm.h:272. Regards, Peter > -- > 2.29.2 > > > _______________________________________________ > barebox mailing list > [email protected] > http://lists.infradead.org/mailman/listinfo/barebox _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
