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| author | Iain Sandoe <iain@sandoe.co.uk> | 2019-07-19 20:10:33 +0000 |
|---|---|---|
| committer | Iain Sandoe <iains@gcc.gnu.org> | 2019-07-19 20:10:33 +0000 |
| commit | db67ea0f935148714d465defe743533715b735a4 (patch) | |
| tree | baf2396249f4dda69ca982bf5df5caa4b1516bee /gcc | |
| parent | 1acf0246c8778feb2ad0056029991f90f9d48b57 (diff) | |
| download | gcc-db67ea0f935148714d465defe743533715b735a4.zip gcc-db67ea0f935148714d465defe743533715b735a4.tar.gz gcc-db67ea0f935148714d465defe743533715b735a4.tar.bz2 | |
[Darwin] More specs TLC.
This strips out a few driver specs that are only specifying a default state.
Also warn on an option now ignored, and add some comments to the driver specs
section.
2019-07-19 Iain Sandoe <iain@sandoe.co.uk>
* config/darwin.h (DRIVER_SELF_SPECS): Ignore X and Mach specs which
refer to default conditions. Warn for the 'y' spec which is ignored
by current linkers.
From-SVN: r273608
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/darwin.h | 28 |
2 files changed, 24 insertions, 10 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a9c2450..f37e270 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-07-19 Iain Sandoe <iain@sandoe.co.uk> + + * config/darwin.h (DRIVER_SELF_SPECS): Ignore X and Mach specs which + refer to default conditions. Warn for the 'y' spec which is ignored + by current linkers. + 2019-07-19 Bill Seurer <seurer@linux.vnet.ibm.com> * config/rs6000/rs6000.c (builtin_description, cpu_is_info, diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h index e17bc64..ed87984 100644 --- a/gcc/config/darwin.h +++ b/gcc/config/darwin.h @@ -118,13 +118,23 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see /* True if pragma ms_struct is in effect. */ extern GTY(()) int darwin_ms_struct; -#define DRIVER_SELF_SPECS \ - "%{gfull:-g -fno-eliminate-unused-debug-symbols} %<gfull", \ - "%{gused:-g -feliminate-unused-debug-symbols} %<gused", \ - "%{fapple-kext|mkernel:-static}", \ - "%{shared:-Zdynamiclib} %<shared", \ - "%{gsplit-dwarf:%ngsplit-dwarf is not supported on this platform} \ - %<gsplit-dwarf" +/* The majority of Darwin's special driver opts are direct access to ld flags + (to save the user typing -Wl,xxxxx or Xlinker xxxxx) but we can't process + them here, since doing so will make it appear that there are linker infiles + and the linker will invoked even when it is not necessary. + + However, a few can be handled and we can elide options that are silently- + ignored defaults, plus warn on obsolete ones that no longer function. */ +#define DRIVER_SELF_SPECS \ +"%{fapple-kext|mkernel:-static}", \ +"%{gfull:-g -fno-eliminate-unused-debug-symbols} %<gfull", \ +"%{gsplit-dwarf:%ngsplit-dwarf is not supported on this platform} \ + %<gsplit-dwarf", \ +"%{gused:-g -feliminate-unused-debug-symbols} %<gused", \ +"%{shared:-Zdynamiclib} %<shared", \ +"%{static:%{Zdynamic:%e conflicting code gen style switches are used}}",\ +"%{y*:%nthe y option is obsolete and ignored} %<y*", \ +"%<Mach %<X" #if LD64_HAS_EXPORT_DYNAMIC #define DARWIN_RDYNAMIC "%{rdynamic:-export_dynamic}" @@ -342,13 +352,11 @@ extern GTY(()) int darwin_ms_struct; %{Zunexported_symbols_list*:-unexported_symbols_list %*} \ %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \ %{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \ - %{X} \ - %{y*} \ %{w} \ %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \ %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \ %{whatsloaded} %{dylinker_install_name*} \ - %{dylinker} %{Mach} " + %{dylinker} " /* Machine dependent libraries. */ |