so that assembly specs get propagated (they were lost before)
- adjust the block register padding (like the other OS's) so that code compiles
- XXX: linker still broken for shared libraries because the os specific spec
is not chosen
libsanitizer needs to match with the compiler concept of
TARGET_ASAN_SHADOW_OFFSET, since the compiler generates instructions
to access memory at that offset in the code, and expects the
sanitizer library to have mapped something there. If there is
disagreement, Mr. Segmentation Fault comes and resolves it for you.
Remove const from the 2nd argument.
const char ** and char ** are incompatible types and it was a cost to keep
the technically incompatible form for a more purist variation. NetBSD was
almost the last alive OS to still keep the const argument (known leftovers:
Minix and Illumos).
Keep the const form for the internal purposes inside citrus and rump.
Address the build breakage fallout in the same change.
There are no ABI changes.
Change accepted by core@.
GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8)
GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8)
GCC_NO_STRINGOP_OVERFLOW -Wno-stringop-overflow (GCC 8)
GCC_NO_CAST_FUNCTION_TYPE -Wno-cast-function-type (GCC 8)
use these to turn off warnings for most GCC-8 complaints. many
of these are false positives, most of the real bugs are already
commited, or are yet to come.
we plan to introduce versions of (some?) of these that use the
"-Wno-error=" form, which still displays the warnings but does
not make it an error, and all of the above will be re-considered
as either being "fix me" (warning still displayed) or "warning
is wrong."
- netbsd/arm64 uses 64 byte malloc alignment
- make lsan compile on sparc*, mips*, ppc and arm64 again
- add missing sparc, alpha and i386 abi compat for struct __sanitizer_addrinfo
- avoid linux includes on arm64
- avoid multiply defined __ubsan_handle_cfi_bad_type when UBSAN_CAN_USE_CXXABI
isn't defined, and, undefine it
- bad_array_length.cc and bad_array_new.cc lose special build rules
- regen arm64 mknative
- sanitizer_procmaps_netbsd.cc is obsolete.
- fix merge botches where upstrem has as slightly different version
is upstream than prior local
- libstdc++ default is now gnu++17
- ubsan needs UBSAN_CAN_USE_CXXABI set
- properly use $G_RTL_BASE_H not (empty) $RTL_BASE_H
- libbackend HH gains new generated insn-modes-inline.h, and read-md.c
gains the HH dep.
- update sanitizer makefiles
also, reduce diffs to upstream:
- remove or1k support
- re-order various lines to match upstream
- move regex map code into file-prefix-map.[ch]
XXX: our change for e500 has moved into 'powerpcspe' port, which has
XXX: been marked deprecated in GCC 8. this may affect what ppc ports
XXX: can update to GCC 8 easily, and we may need to add support for
XXX: 'powerpcspe' while we can.
- many optimisations improved: inter-procedural, profile-directed,
LTO, loops including user-controllable unroll support, and more.
- columns numbers added to line numbers in dwarf
- gcov extended significantly
- many sanitizer updates
- many new warning messages
- many better hints and more useful error messages
- minor ABI changes on x86-64 libstdc++, and some c++17 modes
- draft c++2a features
- better c++17 experimental support
- Armv8.4-A supported, better 8.2-A and 8.3-A support, including
32 bit arm port. cortex a-55, a-75 and a-55.a-75 combo support.
- in the GCC bugzilla, 8.1 shows 1149 bugs fixed, 8.2 shows 100, and
8.3 shows 158.
"VAX does not fully populate the register move costs table, so do not
access it w/o checks.
Hack to work around PR toolchain/53176."
Will commit a more upstream-friendly variant shortly.
Fixes toolchain/54508 by Tobias Ulmer
commit 766f883622ef008230250aa5aecef9fb9b29f233
Author: Alan Hayward <alan.hayward@arm.com>
Date: Tue May 28 10:07:54 2019 +0100
Suppress SIGTTOU when handling errors
Calls to error () can cause SIGTTOU to send gdb to the background.
For example, on an Arm build:
(gdb) b main
Breakpoint 1 at 0x10774: file /build/gdb/testsuite/../../../src/binutils-gdb/gdb/testsuite/gdb.base/watchpoint.c, line 174.
(gdb) r
Starting program: /build/gdb/testsuite/outputs/gdb.base/watchpoint/watchpoint
[1]+ Stopped ../gdb ./outputs/gdb.base/watchpoint/watchpoint
localhost$ fg
../gdb ./outputs/gdb.base/watchpoint/watchpoint
Cannot parse expression `.L1199 4@r4'.
warning: Probes-based dynamic linker interface failed.
Reverting to original interface.
The SIGTTOU is raised whilst inside a syscall during the call to tcdrain.
Fix is to use scoped_ignore_sigttou to ensure SIGTTOU is blocked.
In addition fix include comments - job_control is not included via terminal.h
gdb/ChangeLog:
* event-top.c: Remove include comment.
* inflow.c (class scoped_ignore_sigttou): Move from here...
* inflow.h (class scoped_ignore_sigttou): ...to here.
* ser-unix.c (hardwire_drain_output): Block SIGTTOU during drain.
* top.c: Remove include comment.
