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authorAndrew Burgess <andrew.burgess@embecosm.com>2020-02-04 17:50:40 +0000
committerAndrew Burgess <andrew.burgess@embecosm.com>2020-03-10 22:32:05 +0000
commitcecf854779049c3f491caf23f80d13eabbb90c86 (patch)
treeda5bba4a9c3e64b3a66902642494eae996fbcb69 /gdb/infrun.c
parenta6a1f5e050c3d4444b8074ba9ba02f547b725892 (diff)
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gdb/testsuite: Add is-stmt support to the DWARF compiler
This commit adds the ability to set and toggle the DWARF line table is-stmt flag. A DWARF line table can now be created with the attribute 'default_is_stmt' like this: lines {version 2 default_is_stmt 0} label { ... } If 'default_is_stmt' is not specified then the current default is 1, which matches the existing behaviour. Inside the DWARF line table program you can now make use of {DW_LNS_negate_stmt} to toggle the is-stmt flag, for example this meaningless program: lines {version 2 default_is_stmt 0} label { include_dir "some_directory" file_name "some_filename" 1 program { {DW_LNS_negate_stmt} {DW_LNE_end_sequence} } } This new functionality will be used in a later commit. gdb/testsuite/ChangeLog: * lib/dwarf.exp (Dwarf::lines) Add support for modifying the is-stmt flag in the line table. Change-Id: Ia3f61d523826382dd2333f65b9aae368ad29c4a5
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