Module Name: src
Committed By: rin
Date: Thu Aug 17 03:36:25 UTC 2023
Modified Files:
src/external/gpl3/gcc: README.gcc12
Log Message:
README.gcc12: vax boots into multiuser, but c++ things are broken
- vax builds with lots of newly added -O0 workarounds to avoid
ICE (not committed yet).
- On simh, it successfully boots into multi-user mode.
- C++ exception handling is broken. For GCC 10.5.0 and priors,
we have local change for libunwind:
http://www.execsw.org/netbsd/changeset.cgi?id=20140318T234341Z.c59ac4642e7d4b345f6dc5aa9887e9e1f9aa459a#src/gnu/dist/gcc4/gcc/config/vax/vax.c
But, mechanically applying it (adjusted-for-GCC-10.5.0 version)
does not help.
- Native gcc cannot compile hello.c due to ICE, even without
any optimization.
- Sanitizers do not build yet.
To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/external/gpl3/gcc/README.gcc12
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/external/gpl3/gcc/README.gcc12
diff -u src/external/gpl3/gcc/README.gcc12:1.15 src/external/gpl3/gcc/README.gcc12:1.16
--- src/external/gpl3/gcc/README.gcc12:1.15 Thu Aug 17 03:14:40 2023
+++ src/external/gpl3/gcc/README.gcc12 Thu Aug 17 03:36:25 2023
@@ -1,4 +1,4 @@
-$NetBSD: README.gcc12,v 1.15 2023/08/17 03:14:40 rin Exp $
+$NetBSD: README.gcc12,v 1.16 2023/08/17 03:36:25 rin Exp $
new stuff:
@@ -63,7 +63,7 @@ sh3eb y ? y y b y ? ? ?
sh3el y n[20] y y b y n[22] ? ?
sparc y y y y n[21] y y y ?
sparc64 y b y y n[16] y y ? ?
-vax y ? y y ? n ? ? ?
+vax y y y y n[23] n n[24,25] ? ?
x86_64 y y y y y[13] y y y ?
riscv32 y y y y b y ? ? ?
riscv64 y y y y b y y y ?
@@ -79,8 +79,6 @@ architecture tools kernels libgcc native
[7]: fails to build kernels:
In file included from sys/arch/powerpc/oea/pmap64.c:4:
sys/arch/powerpc/oea/pmap.c:2186:2: error: #error PPC_OEA64 not supported
-[10]: libc.so fails to link with weird relocation errors:
- vax--netbsdelf/bin/ld: warning: dynamic relocation to `?' in readonly section `.eh_frame'
[11]: sanitizers don't build yet.
[12]: sanitizers crash early:
(gdb) bt
@@ -129,6 +127,18 @@ architecture tools kernels libgcc native
liblsan and libubsan are mssing the _4 and _8 versions, too.
[22]: single-user shell crashes. if userland is built with DBG=-O1, it boots into multi-user mode.
however, at least db(3) is broken, by which files are corrupted when edited by vi(1).
+[23]: sanitizers fail to build:
+ sanitizer_flag_parser.h:141:72: error: format '%zx' expects argument of type 'size_t', but argument 4 has type 'unsigned int' [-Werror=format=]
+[24]: c++ exception handling is broken. mechanically applying
+ http://www.execsw.org/netbsd/changeset.cgi?id=20140318T234341Z.c59ac4642e7d4b345f6dc5aa9887e9e1f9aa459a#src/gnu/dist/gcc4/gcc/config/vax/vax.c
+ (with adjustments for gcc 10.5.0) does not help:
+ (gdb) invalid-command
+ [1] Illegal instruction (core dumped) gdb
+[25]: (probably due to [24]) native gcc is broken:
+ simh# cc hello.c
+ during RTL pass: final
+ hello.c: In function 'main':
+ hello.c:9:1: internal compiler error: Segmentation fault
CPU vs platform test table (for CPUs with multiple ports). this is "make release" or just kernels.
