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Allow hiding of some filtered frames

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When a frame filter elides some frames, they are still printed by
"bt", indented a few spaces.  PR backtrace/15582 notes that it would
be nice for users if elided frames could simply be dropped.  This
patch adds this capability.

gdb/ChangeLog
2018-03-26  Tom Tromey  <tom@tromey.com>

	PR backtrace/15582:
	* stack.c (backtrace_command): Parse "hide" argument.
	* python/py-framefilter.c (py_print_frame): Handle PRINT_HIDE.
	* extension.h (enum frame_filter_flags) <PRINT_HIDE>: New
	constant.

gdb/doc/ChangeLog
2018-03-26  Tom Tromey  <tom@tromey.com>

	PR backtrace/15582:
	* gdb.texinfo (Backtrace): Mention "hide" argument.

gdb/testsuite/ChangeLog
2018-03-26  Tom Tromey  <tom@tromey.com>

	PR backtrace/15582:
	* gdb.python/py-framefilter.exp: Add "bt hide" test.
This commit is contained in:
Tom Tromey
2017-04-23 11:03:57 -06:00
parent 1cf7e64086
commit 978d6c756f
8 changed files with 57 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
gdb/testsuite/gdb.python/py-framefilter.exp
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@ -157,6 +157,9 @@ gdb_test "bt no-filter full" \
gdb_test "bt full" \
".*#0.*end_func.*str = $hex \"The End\".*st2 = $hex \"Is Near\".*b = 12.*c = 5.*#1.*in funca \\(\\).*#2.*in funcb \\(j=10\\).*bar = \{a = 42, b = 84\}.*#22.*in func1 \\(\\).*#23.*in func2 \\(f=3\\).*elided = $hex \"Elided frame\".*fb = \{nothing = $hex \"Elided Foo Bar\", f = 84, s = 38\}.*bf = $hex.*" \
"bt full with Reverse disabled"
gdb_test "bt full hide" \
".*#0.*end_func.*str = $hex \"The End\".*st2 = $hex \"Is Near\".*b = 12.*c = 5.*#1.*in funca \\(\\).*#2.*in funcb \\(j=10\\).*bar = \{a = 42, b = 84\}.*#22.*in func1 \\(\\)\[^#\]*#24.*in func3 \\(i=3\\).*" \
"bt full hide with Reverse disabled"
# Test set print frame-arguments
# none