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| author | Yang Yujie <yangyujie@loongson.cn> | 2023-09-13 17:52:14 +0800 |
|---|---|---|
| committer | Lulu Cheng <chenglulu@loongson.cn> | 2023-09-15 10:42:12 +0800 |
| commit | 227b18f5d7616d6d34ac44836a8679de9b43c857 (patch) | |
| tree | 75ad60c6607ba1b19c07392d7f5806372c433c2e /config | |
| parent | 68cb873fd360dbb64f2a6dfb28e79399ff99d07d (diff) | |
| download | gcc-227b18f5d7616d6d34ac44836a8679de9b43c857.zip gcc-227b18f5d7616d6d34ac44836a8679de9b43c857.tar.gz gcc-227b18f5d7616d6d34ac44836a8679de9b43c857.tar.bz2 | |
LoongArch: Reimplement multilib build option handling.
Library build options from --with-multilib-list used to be processed with
*self_spec, which missed the driver's initial canonicalization. This
caused limitations on CFLAGS override and the use of driver-only options
like -m[no]-lsx.
The problem is solved by promoting the injection rules of --with-multilib-list
options to the first element of DRIVER_SELF_SPECS, to make them execute before
the canonialization. The library-build options are also hard-coded in
the driver and can be used conveniently by the builders of other non-gcc
libraries via the use of -fmultiflags.
Bootstrapped and tested on loongarch64-linux-gnu.
ChangeLog:
* config-ml.in: Remove unneeded loongarch clause.
* configure.ac: Register custom makefile fragments mt-loongarch-*
for loongarch targets.
* configure: Regenerate.
config/ChangeLog:
* mt-loongarch-mlib: New file. Pass -fmultiflags when building
target libraries (FLAGS_FOR_TARGET).
* mt-loongarch-elf: New file.
* mt-loongarch-gnu: New file.
gcc/ChangeLog:
* config.gcc: Pass the default ABI via TM_MULTILIB_CONFIG.
* config/loongarch/loongarch-driver.h: Invoke MLIB_SELF_SPECS
before the driver canonicalization routines.
* config/loongarch/loongarch.h: Move definitions of CC1_SPEC etc.
to loongarch-driver.h
* config/loongarch/t-linux: Move multilib-related definitions to
t-multilib.
* config/loongarch/t-multilib: New file. Inject library build
options obtained from --with-multilib-list.
* config/loongarch/t-loongarch: Same.
Diffstat (limited to 'config')
| -rw-r--r-- | config/mt-loongarch-elf | 1 | ||||
| -rw-r--r-- | config/mt-loongarch-gnu | 2 | ||||
| -rw-r--r-- | config/mt-loongarch-mlib | 1 |
3 files changed, 4 insertions, 0 deletions
diff --git a/config/mt-loongarch-elf b/config/mt-loongarch-elf new file mode 100644 index 0000000..bbf29bb --- /dev/null +++ b/config/mt-loongarch-elf @@ -0,0 +1 @@ +include $(srcdir)/config/mt-loongarch-mlib diff --git a/config/mt-loongarch-gnu b/config/mt-loongarch-gnu new file mode 100644 index 0000000..dfefb44 --- /dev/null +++ b/config/mt-loongarch-gnu @@ -0,0 +1,2 @@ +include $(srcdir)/config/mt-gnu +include $(srcdir)/config/mt-loongarch-mlib diff --git a/config/mt-loongarch-mlib b/config/mt-loongarch-mlib new file mode 100644 index 0000000..4cfe568 --- /dev/null +++ b/config/mt-loongarch-mlib @@ -0,0 +1 @@ +FLAGS_FOR_TARGET += -fmultiflags |