Module Name: src Committed By: kamil Date: Thu Feb 15 15:53:57 UTC 2018
Modified Files: src/sys/arch/aarch64/include: mcontext.h src/sys/arch/alpha/include: mcontext.h src/sys/arch/amd64/include: mcontext.h src/sys/arch/arm/include: mcontext.h src/sys/arch/hppa/include: mcontext.h src/sys/arch/i386/include: mcontext.h src/sys/arch/ia64/include: mcontext.h src/sys/arch/m68k/include: mcontext.h src/sys/arch/mips/include: mcontext.h src/sys/arch/or1k/include: mcontext.h src/sys/arch/powerpc/include: mcontext.h src/sys/arch/riscv/include: mcontext.h src/sys/arch/sh3/include: mcontext.h src/sys/arch/sparc/include: mcontext.h src/sys/arch/vax/include: mcontext.h Log Message: Introduce _UC_MACHINE_FP() as a macro _UC_MACHINE_FP() is a helper macro to extract from mcontext a frame pointer. Don't rely on this interface as a compiler might strip frame pointer or optimize it making this interface unreliable. For hppa assume a small frame context, for larger frames FP might be located in a different register (4 instead of 3). For ia64 there is no strict frame pointer, and registers might rotate. Reuse 79 following: ./gcc/config/ia64/ia64.h:#define HARD_FRAME_POINTER_REGNUM LOC_REG (79) Once ia64 will mature, this should be revisited. A macro can encapsulate a real function for extracting Frame Pointer on more complex CPUs / ABIs. For the remaining CPUs, reuse standard register as defined in appropriate ABI. The direct users of this macro are LLVM and GCC with Sanitizers. Proposed on tech-userlevel@. Sponsored by <The NetBSD Foundation> To generate a diff of this commit: cvs rdiff -u -r1.1 -r1.2 src/sys/arch/aarch64/include/mcontext.h cvs rdiff -u -r1.8 -r1.9 src/sys/arch/alpha/include/mcontext.h cvs rdiff -u -r1.18 -r1.19 src/sys/arch/amd64/include/mcontext.h cvs rdiff -u -r1.18 -r1.19 src/sys/arch/arm/include/mcontext.h cvs rdiff -u -r1.8 -r1.9 src/sys/arch/hppa/include/mcontext.h cvs rdiff -u -r1.13 -r1.14 src/sys/arch/i386/include/mcontext.h cvs rdiff -u -r1.5 -r1.6 src/sys/arch/ia64/include/mcontext.h cvs rdiff -u -r1.9 -r1.10 src/sys/arch/m68k/include/mcontext.h cvs rdiff -u -r1.21 -r1.22 src/sys/arch/mips/include/mcontext.h cvs rdiff -u -r1.1 -r1.2 src/sys/arch/or1k/include/mcontext.h cvs rdiff -u -r1.17 -r1.18 src/sys/arch/powerpc/include/mcontext.h cvs rdiff -u -r1.4 -r1.5 src/sys/arch/riscv/include/mcontext.h cvs rdiff -u -r1.10 -r1.11 src/sys/arch/sh3/include/mcontext.h cvs rdiff -u -r1.13 -r1.14 src/sys/arch/sparc/include/mcontext.h cvs rdiff -u -r1.8 -r1.9 src/sys/arch/vax/include/mcontext.h Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.