diff options
| author | rsc <devnull@localhost> | 2006-02-16 06:18:19 +0000 |
|---|---|---|
| committer | rsc <devnull@localhost> | 2006-02-16 06:18:19 +0000 |
| commit | 8712d1a38e87e8f51257a80246f51d075aae7f5b (patch) | |
| tree | cfd7b4516444f50d7ed0c682592ba6dead21c071 /src/libthread | |
| parent | 229086e79014909293b56271b529ed97e700932e (diff) | |
| download | plan9port-8712d1a38e87e8f51257a80246f51d075aae7f5b.tar.gz plan9port-8712d1a38e87e8f51257a80246f51d075aae7f5b.tar.bz2 plan9port-8712d1a38e87e8f51257a80246f51d075aae7f5b.zip | |
more
Diffstat (limited to 'src/libthread')
| -rw-r--r-- | src/libthread/Linux-sparc64-swapcontext.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/libthread/Linux-sparc64-swapcontext.c b/src/libthread/Linux-sparc64-swapcontext.c index ac6fd5bc..a621b7a1 100644 --- a/src/libthread/Linux-sparc64-swapcontext.c +++ b/src/libthread/Linux-sparc64-swapcontext.c @@ -19,18 +19,21 @@ #include <ucontext.h> +#define UC_M_PC 40 +#define UC_M_NPC 48 + extern int __getcontext (ucontext_t *ucp); extern int __setcontext (const ucontext_t *ucp, int restoremask); int -__swapcontext (ucontext_t *oucp, const ucontext_t *ucp) +swapcontext (ucontext_t *oucp, const ucontext_t *ucp) { extern void __swapcontext_ret (void); /* Save the current machine context to oucp. */ __getcontext (oucp); /* Modify oucp to skip the __setcontext call on reactivation. */ - oucp->uc_mcontext.mc_gregs[MC_PC] = (long) __swapcontext_ret; - oucp->uc_mcontext.mc_gregs[MC_NPC] = ((long) __swapcontext_ret) + 4; + *(long*)((char*)oucp+UC_M_PC) = (long)__swapcontext_ret; + *(long*)((char*)oucp+UC_M_NPC) = (long)__swapcontext_ret + 4; /* Restore the machine context in ucp. */ __setcontext (ucp, 1); return 0; @@ -45,4 +48,3 @@ __swapcontext_ret: \n\ .size __swapcontext_ret, .-__swapcontext_ret \n\ "); -weak_alias (__swapcontext, swapcontext) |