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debug: Allow means for targets to opt out of CTF/BTF support
CTF/BTF debug formats can be safely enabled for all ELF-based targets by default in GCC. CTF/BTF debug formats now adopt a similar approach as taken for DWARF debug format via the DWARF2_DEBUGGING_INFO. - By default, CTF/BTF formats can be enabled for all ELF-based targets. - By default, CTF/BTF formats can be disabled for all non ELF-based targets. - If the user passed a -gctf but CTF is not enabled for the target, GCC issues an error to the user (as is done currently with other debug formats) - "target system does not support the 'ctf' debug format". Analogous behavior for -gbtf command line option. A previous commit disabled the CTF and BTF testcases on the AIX platform. This is not necessary now that CTF and BTF debug formats are disabled by default on all non-ELF targets. GCC emits an error message when -gctf/-gbtf is used on such platforms and these tests will be skipped. gcc/ * config/elfos.h (CTF_DEBUGGING_INFO): New definition. (BTF_DEBUGGING_INFO): Likewise. * doc/tm.texi.in: Document the new macros. * doc/tm.texi: Regenerated. * toplev.c: Guard initialization of debug hooks. gcc/testsuite/ * gcc.dg/debug/btf/btf.exp: Do not run BTF testsuite if target does not support BTF format. Remove redundant check for AIX. * gcc.dg/debug/ctf/ctf.exp: Do not run CTF testsuite if target does not support CTF format. Remove redundant check for AIX. * lib/gcc-dg.exp: Remove redundant check for AIX.
This commit is contained in:
Indu Bhagat
parent
483dd64546
commit
f007a638a8
@ -68,6 +68,14 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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#define DWARF2_DEBUGGING_INFO 1
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/* All ELF targets can support CTF. */
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#define CTF_DEBUGGING_INFO 1
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/* All ELF targets can support BTF. */
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#define BTF_DEBUGGING_INFO 1
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/* The GNU tools operate better with dwarf2, and it is required by some
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psABI's. Since we don't have any native tools to be compatible with,
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default to dwarf2. */
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@ -9947,6 +9947,8 @@ This describes how to specify debugging information.
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* File Names and DBX:: Macros controlling output of file names in DBX format.
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* DWARF:: Macros for DWARF format.
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* VMS Debug:: Macros for VMS debug format.
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* CTF Debug:: Macros for CTF debug format.
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* BTF Debug:: Macros for BTF debug format.
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@end menu
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@node All Debuggers
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@ -10374,6 +10376,30 @@ behavior is controlled by @code{TARGET_OPTION_OPTIMIZATION} and
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@code{TARGET_OPTION_OVERRIDE}.
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@end defmac
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@need 2000
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@node CTF Debug
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@subsection Macros for CTF Debug Format
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@c prevent bad page break with this line
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Here are macros for CTF debug format.
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@defmac CTF_DEBUGGING_INFO
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Define this macro if GCC should produce debugging output in CTF debug
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format in response to the @option{-gctf} option.
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@end defmac
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@need 2000
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@node BTF Debug
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@subsection Macros for BTF Debug Format
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@c prevent bad page break with this line
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Here are macros for BTF debug format.
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@defmac BTF_DEBUGGING_INFO
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Define this macro if GCC should produce debugging output in BTF debug
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format in response to the @option{-gbtf} option.
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@end defmac
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@node Floating Point
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@section Cross Compilation and Floating Point
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@cindex cross compilation and floating point
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@ -6613,6 +6613,8 @@ This describes how to specify debugging information.
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* File Names and DBX:: Macros controlling output of file names in DBX format.
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* DWARF:: Macros for DWARF format.
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* VMS Debug:: Macros for VMS debug format.
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* CTF Debug:: Macros for CTF debug format.
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* BTF Debug:: Macros for BTF debug format.
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@end menu
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@node All Debuggers
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@ -6994,6 +6996,30 @@ behavior is controlled by @code{TARGET_OPTION_OPTIMIZATION} and
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@code{TARGET_OPTION_OVERRIDE}.
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@end defmac
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@need 2000
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@node CTF Debug
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@subsection Macros for CTF Debug Format
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@c prevent bad page break with this line
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Here are macros for CTF debug format.
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@defmac CTF_DEBUGGING_INFO
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Define this macro if GCC should produce debugging output in CTF debug
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format in response to the @option{-gctf} option.
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@end defmac
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@need 2000
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@node BTF Debug
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@subsection Macros for BTF Debug Format
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@c prevent bad page break with this line
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Here are macros for BTF debug format.
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@defmac BTF_DEBUGGING_INFO
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Define this macro if GCC should produce debugging output in BTF debug
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format in response to the @option{-gbtf} option.
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@end defmac
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@node Floating Point
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@section Cross Compilation and Floating Point
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@cindex cross compilation and floating point
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@ -24,11 +24,6 @@ if { [istarget nvptx-*-*] } {
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return
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}
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if { [istarget "powerpc-ibm-aix*"] } {
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set torture_execute_xfail "powerpc-ibm-aix*"
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return
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}
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# If a testcase doesn't have special options, use these.
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global DEFAULT_CFLAGS
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if ![info exists DEFAULT_CFLAGS] then {
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@ -39,8 +34,15 @@ if ![info exists DEFAULT_CFLAGS] then {
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dg-init
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# Main loop.
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dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cS\] ]] \
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"" $DEFAULT_CFLAGS
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set comp_output [gcc_target_compile \
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"$srcdir/$subdir/../trivial.c" "trivial.S" assembly \
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"additional_flags=-gbtf"]
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if { ! [string match "*: target system does not support the * debug format*" \
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$comp_output] } {
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remove-build-file "trivial.S"
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dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cS\] ]] \
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"" $DEFAULT_CFLAGS
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}
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# All done.
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dg-finish
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@ -24,11 +24,6 @@ if { [istarget nvptx-*-*] } {
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return
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}
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if { [istarget "powerpc-ibm-aix*"] } {
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set torture_execute_xfail "powerpc-ibm-aix*"
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return
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}
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# If a testcase doesn't have special options, use these.
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global DEFAULT_CFLAGS
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if ![info exists DEFAULT_CFLAGS] then {
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@ -39,8 +34,15 @@ if ![info exists DEFAULT_CFLAGS] then {
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dg-init
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# Main loop.
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dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cS\] ]] \
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"" $DEFAULT_CFLAGS
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set comp_output [gcc_target_compile \
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"$srcdir/$subdir/../trivial.c" "trivial.S" assembly \
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"additional_flags=-gctf"]
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if { ! [string match "*: target system does not support the * debug format*" \
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$comp_output] } {
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remove-build-file "trivial.S"
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dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cS\] ]] \
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"" $DEFAULT_CFLAGS
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}
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# All done.
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dg-finish
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@ -641,7 +641,6 @@ proc gcc-dg-frontend-supports-ctf { target_compile trivial } {
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proc gcc-dg-target-supports-debug-format { target_compile trivial type } {
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global srcdir subdir
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if {$type == "-gctf" && [istarget *-*-aix*]} { return 0 }
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set comp_output [$target_compile \
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"$srcdir/$subdir/$trivial" "trivial.S" assembly \
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"additional_flags=$type"]
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11
gcc/toplev.c
11
gcc/toplev.c
@ -1463,8 +1463,15 @@ process_options (void)
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debug_hooks = &xcoff_debug_hooks;
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#endif
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#ifdef DWARF2_DEBUGGING_INFO
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else if (dwarf_debuginfo_p ()
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|| dwarf_based_debuginfo_p ())
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else if (dwarf_debuginfo_p ())
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debug_hooks = &dwarf2_debug_hooks;
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#endif
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#ifdef CTF_DEBUGGING_INFO
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else if (ctf_debuginfo_p ())
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debug_hooks = &dwarf2_debug_hooks;
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#endif
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#ifdef BTF_DEBUGGING_INFO
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else if (btf_debuginfo_p ())
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debug_hooks = &dwarf2_debug_hooks;
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#endif
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#ifdef VMS_DEBUGGING_INFO
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