CVS commit: src

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sun Mar 16 15:35:00 UTC 2025

Modified Files:
        src/sys/arch/alpha/alpha: machdep.c
        src/sys/arch/amd64/amd64: machdep.c
        src/sys/arch/hppa/hppa: machdep.c
        src/sys/arch/i386/i386: machdep.c
        src/sys/arch/ia64/ia64: machdep.c
        src/sys/arch/m68k/m68k: m68k_machdep.c
        src/sys/arch/mips/mips: mips_machdep.c
        src/sys/arch/sh3/sh3: sh3_machdep.c
        src/sys/arch/vax/vax: trap.c
        src/tests/kernel: t_execregs.c

Log Message:
Clear trapframe on exec.

Do this for all architectures, even if the trapframe is fully
initialized -- makes it easier to audit and be confident it's
correct, and most likely (with the exception of sh3 which has an
intermediate call to ufetch_int in the middle) the compiler can
eliminate redundant stores in these routines.

PR kern/59084: exec/spawn leaks register content


To generate a diff of this commit:
cvs rdiff -u -r1.379 -r1.380 src/sys/arch/alpha/alpha/machdep.c
cvs rdiff -u -r1.371 -r1.372 src/sys/arch/amd64/amd64/machdep.c
cvs rdiff -u -r1.21 -r1.22 src/sys/arch/hppa/hppa/machdep.c
cvs rdiff -u -r1.843 -r1.844 src/sys/arch/i386/i386/machdep.c
cvs rdiff -u -r1.45 -r1.46 src/sys/arch/ia64/ia64/machdep.c
cvs rdiff -u -r1.11 -r1.12 src/sys/arch/m68k/m68k/m68k_machdep.c
cvs rdiff -u -r1.306 -r1.307 src/sys/arch/mips/mips/mips_machdep.c
cvs rdiff -u -r1.113 -r1.114 src/sys/arch/sh3/sh3/sh3_machdep.c
cvs rdiff -u -r1.138 -r1.139 src/sys/arch/vax/vax/trap.c
cvs rdiff -u -r1.3 -r1.4 src/tests/kernel/t_execregs.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.