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| author | David Edelsohn <dje.gcc@gmail.com> | 2021-04-27 16:09:07 -0400 |
|---|---|---|
| committer | David Edelsohn <dje.gcc@gmail.com> | 2021-04-27 19:54:00 -0400 |
| commit | 0366e2b40e9ea5fc61c9a694de0c8c76a238b03c (patch) | |
| tree | 8bc975d6572ffb1324145e0d67cd10ec624f07ca /gcc | |
| parent | 37846c42f1f5ac4d9ba190d49c4373673c89c8b5 (diff) | |
| download | gcc-0366e2b40e9ea5fc61c9a694de0c8c76a238b03c.zip gcc-0366e2b40e9ea5fc61c9a694de0c8c76a238b03c.tar.gz gcc-0366e2b40e9ea5fc61c9a694de0c8c76a238b03c.tar.bz2 | |
aix: Alias -m64 to -maix64 and -m32 to -maix32.
GCC on AIX historically has used -maix64 and -maix32 to switch to 64 bit mode
or 32 bit mode, unlike other ports that use -m64 and -m32. The Alias()
directive for options cannot be used because aix64 is expected in multiple
parts of the compiler infrastructure and one cannot switch to -m64 due to
backward compatibility.
This patch defines DRIVER_SELF_SPECS to translate -m64 to -maix64 and
-m32 to -maix32 so that the command line option compatible with other
targets can be used while continuing to allow the historical options.
gcc/ChangeLog:
* config/rs6000/aix.h (SUBTARGET_DRIVER_SELF_SPECS): New.
* config/rs6000/aix64.opt (m64): New.
(m32): New.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/rs6000/aix.h | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/aix64.opt | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/config/rs6000/aix.h b/gcc/config/rs6000/aix.h index b116e1a..662785c 100644 --- a/gcc/config/rs6000/aix.h +++ b/gcc/config/rs6000/aix.h @@ -280,3 +280,9 @@ #define RS6000_USE_DWARF_NUMBERING #define TARGET_PRECOMPUTE_TLS_P rs6000_aix_precompute_tls_p + +/* Replace -m64 with -maix64 and -m32 with -maix32. */ +#undef SUBTARGET_DRIVER_SELF_SPECS +#define SUBTARGET_DRIVER_SELF_SPECS \ +"%{m64:-maix64} %<m64", \ +"%{m32:-maix32} %<m32" diff --git a/gcc/config/rs6000/aix64.opt b/gcc/config/rs6000/aix64.opt index 7673c91..15d863f 100644 --- a/gcc/config/rs6000/aix64.opt +++ b/gcc/config/rs6000/aix64.opt @@ -53,3 +53,9 @@ Driver pthread Driver + +m64 +Driver + +m32 +Driver |