https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64008
Bug ID: 64008
Summary: [SH] sh4-linux configured compiler rejects -m4-nofpu
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: olegendo at gcc dot gnu.org
CC: kkojima at gcc dot gnu.org, segher at gcc dot gnu.org
Target: sh*-*-*
This issue has been mentioned by Segher while he was trying to build an SH4
linux kernel on a powerpc host. Segher, could you please add the configure
options you have used for that?
Looking at the SUPPORT_SH* macros in sh.h starting at line 161, it's not
entirely clear to me what those are trying to accomplish.
For instance:
#if SUPPORT_SH1
#define SUPPORT_SH2 1
#endif
... to me reads that when SH1 support is enabled (-m1 option), then support for
SH2 (-m2 option) is also enabled. This looks like it should be the other way
around.
Kaz, do you have any idea why these SUPPORT_SH* macros are needed? Why isn't
just every CPU/FPU type marked as supported?
