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2004-07-21 Andrew Cagney <cagney@gnu.org> 

* PROBLEMS: Mention breakpoints/1702.
	* NEWS: For signal trampolines, cite s390 GNU/Linux as a system
	that is known to work.
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Andrew Cagney 2004-07-21 16:17:56 +00:00
parent 20f0a1fc7d
commit 73cc75f3b2
3 changed files with 22 additions and 2 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2004-07-21 Andrew Cagney <cagney@gnu.org>
* PROBLEMS: Mention breakpoints/1702.
* NEWS: For signal trampolines, cite s390 GNU/Linux as a system
that is known to work.
2004-07-21 Andrew Cagney <cagney@gnu.org>
* config/mips/tm-mips.h (DEPRECATED_IGNORE_HELPER_CALL): Deprecate.

5
gdb/NEWS
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@ -38,8 +38,9 @@ of sa_sigaction signal trampolines; backtrace from a NULL pointer
call; backtrace through a signal trampoline; step into and out of
signal handlers; and single-stepping in the signal trampoline.
These fixes were tested on i386 GNU/Linux systems that include a 2.4
kernel.
Please note that kernel bugs are a limiting factor here. These
features have been shown to work on an s390 GNU/Linux system that
include a 2.6.8-rc1 kernel. Ref PR breakpoints/1702.
* Cygwin support for DWARF 2 added.

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gdb/PROBLEMS
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@ -94,6 +94,19 @@ implement virtual base classes. gcc 2.x generated just one object code
function with a hidden parameter, but gcc 3.x conforms to a multi-vendor
ABI for C++ which requires multiple object code functions.
*** Signal handlers
On many systems an attempt to single-step a system-call instruction
results in two or more instructions being executed (the system-call,
and one or more instructions following).
When attempting to single-step through a signal trampoline, this
problem may result the program unintentionally running to completion,
or re-execute the faulting instruction, or even corrupting the program
counter.
Ref: PR breakpoints/1702.
*** Stack backtraces
GDB's core code base has been updated to use a new backtrace