diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc_r/uthread/pthread_private.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/libc_r/uthread/pthread_private.h b/lib/libc_r/uthread/pthread_private.h index 2688914..e8e85b0 100644 --- a/lib/libc_r/uthread/pthread_private.h +++ b/lib/libc_r/uthread/pthread_private.h @@ -67,6 +67,7 @@ * address in a jmp_buf context. * * XXX - These need to be moved into architecture dependent support files. + * XXX - These need to be documented so porters know what's required. */ #if defined(__i386__) #define GET_STACK_JB(jb) ((unsigned long)((jb)[0]._jb[2])) @@ -101,6 +102,34 @@ (jb)[0]._jb[R_RA + 4] = (long)(ra); \ (jb)[0]._jb[R_T12 + 4] = (long)(ra); \ } while (0) +#elif defined(__sparc64__) +#include <machine/frame.h> + +#define CCFSZ sizeof (struct frame) + +#define GET_STACK_JB(jb) \ + ((unsigned long)((jb)[0]._jb[_JB_SP]) + SPOFF) +#define GET_STACK_SJB(sjb) \ + ((unsigned long)((sjb)[0]._sjb[_JB_SP]) + SPOFF) +#define GET_STACK_UC(ucp) \ + ((ucp)->uc_mcontext.mc_sp + SPOFF) +/* + * XXX: sparc64 _longjmp() expects a register window on the stack + * at the given position, so we must make sure that the space where + * it is expected is readable. Subtracting the frame size here works + * because the SET_STACK macros are only used to set up new stacks + * or signal stacks, but it is a bit dirty. + */ +#define SET_STACK_JB(jb, stk) \ + (jb)[0]._jb[_JB_SP] = (long)(stk) - SPOFF - CCFSZ +#define SET_STACK_SJB(sjb, stk) \ + (sjb)[0]._sjb[_JB_SP] = (long)(stk) - SPOFF - CCFSZ +#define SET_STACK_UC(ucp, stk) \ + (ucp)->uc_mcontext.mc_sp = (unsigned long)(stk) - SPOFF - CCFSZ +#define FP_SAVE_UC(ucp) /* XXX */ +#define FP_RESTORE_UC(ucp) /* XXX */ +#define SET_RETURN_ADDR_JB(jb, ra) \ + (jb)[0]._jb[_JB_PC] = (long)(ra) - 8 #else #error "Don't recognize this architecture!" #endif |
