a2f8e1d8c6
* negative repeat count for x examines backwards
* fortran: support structs/arrays with dynamically types fields
* support MPX bound checking
* support for the Rust language
* 'catch syscall' now can catch groups of related syscalls
* New (sub)commands:
- skip {-file,-gfile,-function,-rfunction}: generic skip
mechanism
- maint {selftest,info line-table}
- new-ui: create new user interface for GUI clients
* (fast) tracepoints on s390x and ppc64le added to gdbserver
* New target Andes NDS32
- Remove patch gdb-aarch64-v81-hwbreakpoints.diff (upstream)
- Add patches from Fedora package:
gdb-6.7-testsuite-stable-results.patch
gdb-add-index-chmod.patch
gdb-bison-old.patch
gdb-container-rh-pkg.patch
gdb-libexec-add-index.patch
gdb-linux_perf-bundle.patch
gdb-physname-pr11734-test.patch
gdb-physname-pr12273-test.patch
gdb-rhbz1007614-memleak-infpy_read_memory-test.patch
gdb-rhbz1084404-ppc64-s390x-wrong-prologue-skip-O2-g-3of3.patch
gdb-rhbz1149205-catch-syscall-after-fork-test.patch
gdb-rhbz1156192-recursive-dlopen-test.patch
gdb-rhbz1186476-internal-error-unqualified-name-re-set-test.patch
gdb-rhbz1350436-type-printers-error.patch
gdb-test-ivy-bridge.patch
OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gdb?expand=0&rev=151
84 lines
3.1 KiB
Diff
84 lines
3.1 KiB
Diff
http://sourceware.org/ml/gdb-patches/2016-10/msg00652.html
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Subject: [testsuite patch] Fix false FAIL for gdb.base/morestack.exp
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--HlL+5n6rz5pIUxbD
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline
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Hi,
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since
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[commit] [testsuite patch] Fix gcc_compiled for gcc 6 & 7
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https://sourceware.org/ml/gdb-patches/2016-10/msg00620.html
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there has started running again
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Running gdb/testsuite/gdb.base/morestack.exp ...
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+FAIL: gdb.base/morestack.exp: continue
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+PASS: gdb.base/morestack.exp: up 3000
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but as you can see it FAILs now - on Fedora 24 x86_64 (although for example it
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still PASSes on CentOS-7.2 x86_64).
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Program received signal SIGSEGV, Segmentation fault.
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0x00007ffff787c7bb in malloc_consolidate (av=av@entry=0x7ffff7bbcb00 <main_arena>) at malloc.c:4181
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4181 unlink(av, nextchunk, bck, fwd);
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(gdb) bt
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#0 0x00007ffff787c7bb in malloc_consolidate (av=av@entry=0x7ffff7bbcb00 <main_arena>) at malloc.c:4181
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#1 0x00007ffff787f235 in _int_malloc (av=av@entry=0x7ffff7bbcb00 <main_arena>, bytes=bytes@entry=1024) at malloc.c:3448
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[...]
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#8 0x00007ffff784c5ac in _IO_vfprintf_internal (s=0x7ffff7bbd600 <_IO_2_1_stdout_>, format=<optimized out>, ap=ap@entry=0x7ffff77fd7f8) at vfprintf.c:1631
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#9 0x00007ffff7853939 in __printf (format=<optimized out>) at printf.c:33
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#10 0x0000000000400d6b in down ()
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#11 0x0000000000400f2c in __morestack ()
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#12 0x0000000000400dda in down ()
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[...]
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This apparently is due to - man gcc - -fsplit-stack:
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When code compiled with -fsplit-stack calls code compiled without
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-fsplit-stack, there may not be much stack space available for the
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latter code to run. If compiling all code, including library code,
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with -fsplit-stack is not an option, then the linker can fix up these
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calls so that the code compiled without -fsplit-stack always has
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a large stack. Support for this is implemented in the gold linker in
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GNU binutils release 2.21 and later.
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Personally I do not understand why gold is not the default linker as GNU ld is
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unusably slow (6x) for C++ but that is off-topic here.
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OK for check-in?
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Thanks,
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Jan
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--HlL+5n6rz5pIUxbD
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: inline; filename=1
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gdb/testsuite/ChangeLog
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2016-10-22 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb.base/morestack.exp: Try to build it using -fuse-ld=gold first.
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diff --git a/gdb/testsuite/gdb.base/morestack.exp b/gdb/testsuite/gdb.base/morestack.exp
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index 12f5d28..caa85b8 100644
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--- a/gdb/testsuite/gdb.base/morestack.exp
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+++ b/gdb/testsuite/gdb.base/morestack.exp
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@@ -23,7 +23,11 @@ if {$gcc_compiled == 0} {
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standard_testfile
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-if { [prepare_for_testing ${testfile}.exp ${testfile} $srcfile {additional_flags=-fsplit-stack}] } {
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+# -fuse-ld=gold is used for calling printf code built without -fsplit-stack
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+# which could crash otherise. See GCC documentation of -fsplit-stack.
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+set opts "additional_flags=-fsplit-stack"
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+if { [prepare_for_testing ${testfile}.exp ${testfile} $srcfile [list $opts additional_flags=-fuse-ld=gold]] \
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+ && [prepare_for_testing ${testfile}.exp ${testfile} $srcfile $opts] } {
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return -1
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}
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--HlL+5n6rz5pIUxbD--
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