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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-10-14 14:01:15 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-10-14 14:01:15 +0000 |
| commit | d2317d50ae2402e5335f2ed807a166359565566b (patch) | |
| tree | e1da597f34748f3f862b014171a86a7c421d2d21 /libgo | |
| parent | ea9782106cd2cfbb53237024dcc984a26acb7130 (diff) | |
| download | gcc-d2317d50ae2402e5335f2ed807a166359565566b.zip gcc-d2317d50ae2402e5335f2ed807a166359565566b.tar.gz gcc-d2317d50ae2402e5335f2ed807a166359565566b.tar.bz2 | |
internal/cpu: define kdsaQuery for s390
Patch from Andreas Krebbel.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/201037
From-SVN: r276962
Diffstat (limited to 'libgo')
| -rw-r--r-- | libgo/go/internal/cpu/cpu_gccgo.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libgo/go/internal/cpu/cpu_gccgo.c b/libgo/go/internal/cpu/cpu_gccgo.c index ed0e7bff..6b40f01 100644 --- a/libgo/go/internal/cpu/cpu_gccgo.c +++ b/libgo/go/internal/cpu/cpu_gccgo.c @@ -184,4 +184,19 @@ struct queryResult klmdQuery() { return ret; } +struct queryResult kdsaQuery(void) + __asm__(GOSYM_PREFIX "internal..z2fcpu.kdsaQuery") + __attribute__((no_split_stack)); + +struct queryResult kdsaQuery() { + struct queryResult ret; + + __asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KDSA-Query) + "la %%r1, %[ret]\t\n" + ".long 0xb93a0024\t\n" // kdsa + :[ret] "=QRST" (ret) : : "r0", "r1", "cc"); + + return ret; +} + #endif /* defined(__s390x__) */ |