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| author | Alexandre Oliva <oliva@adacore.com> | 2022-11-05 03:14:33 -0300 |
|---|---|---|
| committer | Alexandre Oliva <oliva@gnu.org> | 2022-11-05 03:14:33 -0300 |
| commit | 6b1a2474f9e422ef746f7ea13014b288850bb68a (patch) | |
| tree | 391e95f35df7bf1efbefe820003324821508f1c4 /gcc/gcc.cc | |
| parent | 95ba31bc4f88a0a2ff9f0ed41f3478cafcb9e040 (diff) | |
| download | gcc-6b1a2474f9e422ef746f7ea13014b288850bb68a.zip gcc-6b1a2474f9e422ef746f7ea13014b288850bb68a.tar.gz gcc-6b1a2474f9e422ef746f7ea13014b288850bb68a.tar.bz2 | |
Support multilib-aware target lib flags self-specs overriding
This patch introduces -fmultiflags, short for multilib TFLAGS, as an
option that does nothing by default, but that can be added to TFLAGS
and mapped to useful options by driver self-specs.
for gcc/ChangeLog
* common.opt (fmultiflags): New.
* doc/invoke.texi: Document it.
* gcc.cc (driver_self_specs): Discard it.
* opts.cc (common_handle_option): Ignore it in the driver.
Diffstat (limited to 'gcc/gcc.cc')
| -rw-r--r-- | gcc/gcc.cc | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -1327,7 +1327,11 @@ static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; static const char *const driver_self_specs[] = { "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns", - DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS + DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS, + /* This discards -fmultiflags at the end of self specs processing in the + driver, so that it is effectively Ignored, without actually marking it as + Ignored, which would get it discarded before self specs could remap it. */ + "%<fmultiflags" }; #ifndef OPTION_DEFAULT_SPECS |