Author: brooks Date: Fri Sep 4 21:55:22 2020 New Revision: 365344 URL: https://svnweb.freebsd.org/changeset/base/365344
Log: Round TF_SIZE up to the stack alignment (16-bytes). The kernel adjusts the stack by TF_SIZE and the RISC-V ABI requires that it remain 16-byte aligned. Reported by: CHERI, jrtc27 Reviewed by: mhorne Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D26328 Modified: head/sys/riscv/riscv/genassym.c Modified: head/sys/riscv/riscv/genassym.c ============================================================================== --- head/sys/riscv/riscv/genassym.c Fri Sep 4 21:48:36 2020 (r365343) +++ head/sys/riscv/riscv/genassym.c Fri Sep 4 21:55:22 2020 (r365344) @@ -87,7 +87,7 @@ ASSYM(TD_FRAME, offsetof(struct thread, td_frame)); ASSYM(TD_MD, offsetof(struct thread, td_md)); ASSYM(TD_LOCK, offsetof(struct thread, td_lock)); -ASSYM(TF_SIZE, sizeof(struct trapframe)); +ASSYM(TF_SIZE, roundup2(sizeof(struct trapframe), STACKALIGNBYTES + 1)); ASSYM(TF_RA, offsetof(struct trapframe, tf_ra)); ASSYM(TF_SP, offsetof(struct trapframe, tf_sp)); ASSYM(TF_GP, offsetof(struct trapframe, tf_gp)); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
