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aix: document dwarf 4 default (and TPF default)

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gcc/ChangeLog:

	* doc/invoke.texi (-gdwarf): TPF defaults to version 2 and AIX
	defaults to version 4.
This commit is contained in:
David Edelsohn 2021-01-18 13:09:28 -05:00
parent 76c1dd15e4
commit f56e14101b
1 changed files with 3 additions and 2 deletions
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5
gcc/doc/invoke.texi
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@ -9613,8 +9613,9 @@ possible.
@opindex gdwarf
Produce debugging information in DWARF format (if that is supported).
The value of @var{version} may be either 2, 3, 4 or 5; the default
version for most targets is 5 (with the exception of VxWorks and
Darwin/Mac OS X which default to version 2).
version for most targets is 5 (with the exception of VxWorks, TPF and
Darwin/Mac OS X, which default to version 2, and AIX, which defaults
to version 4).
Note that with DWARF Version 2, some ports require and always
use some non-conflicting DWARF 3 extensions in the unwind tables.