[src/trunk]: src/external/gpl3/gcc dtrace systrace.c issue fixed by christos ...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8a63302aee4a
branches:  trunk
changeset: 378467:8a63302aee4a
user:      mrg <mrg%NetBSD.org@localhost>
date:      Wed Apr 14 01:19:13 2021 +0000

description:
dtrace systrace.c issue fixed by christos (thanks!)

mips issue is related to memset.c miscompiling and does not
appear with -ffreestanding (thanks joerg & simonb.)

diffstat:

 external/gpl3/gcc/README.gcc10 |  11 +++--------
 1 files changed, 3 insertions(+), 8 deletions(-)

diffs (33 lines):

diff -r 882b167baef9 -r 8a63302aee4a external/gpl3/gcc/README.gcc10
--- a/external/gpl3/gcc/README.gcc10    Tue Apr 13 23:57:23 2021 +0000
+++ b/external/gpl3/gcc/README.gcc10    Wed Apr 14 01:19:13 2021 +0000
@@ -1,4 +1,4 @@
-$NetBSD: README.gcc10,v 1.6 2021/04/13 22:24:56 mrg Exp $
+$NetBSD: README.gcc10,v 1.7 2021/04/14 01:19:13 mrg Exp $
 
 
 new stuff:
@@ -65,7 +65,7 @@ sh3el         y       y       y       y               y               y       ?       ?
 sparc          y       y       y       y               y               y       y       n
 sparc64                y       y       y       y               y               y       y       n
 vax            y       y       y       y               y               y       n[6]    n
-x86_64         y       y       y       y               y[7]            y       y       ?
+x86_64         y       y       y       y               y               y       y       n
 riscv32                y       N/A     y       y               y               N/A     N/A     n
 riscv64                y       N/A     y       y               y               N/A     N/A     n
 --
@@ -100,13 +100,8 @@ architecture       tools   kernels libgcc  native
     - OCTEON kernel seems OK, something in my private configuration?
 [5] - userland is broken.  some dynamic apps run on old install (ie, old
       ld.elf_so & shlibs) but nothing in chroot runs (static or dynamic).
+      memset.c compiles wrongly, wants -ffreestanding.  oddness.
 [6] - vax vs c++ exceptions issue
-[7] - with ctf/dtrace enabled, this happens:
-      /usr/src2/sys/kern/systrace_args.c:19:13: error: array subscript 8 is above array bounds of 'const union <anonymous>[8]' [-Werror=array-bounds]
-         19 |   iarg[1] = SCARG(p, args[SYS_MAXSYSARGS]); /* register_t */
-            |             ^
-      which makes sense as args[8] is out of bounds.
-      -- this issue has been -Wno-'d but should be investigated.
 [8] - i386 seems to have a signal delivery issue.  GCC 9 or 10 kernels are
       unable to reboot properly, and GCC 10 atf runs hang in signal delivery.