diff options
Diffstat (limited to 'sysdeps/s390/s390-64/dl-trampoline.h')
| -rw-r--r-- | sysdeps/s390/s390-64/dl-trampoline.h | 84 |
1 files changed, 49 insertions, 35 deletions
diff --git a/sysdeps/s390/s390-64/dl-trampoline.h b/sysdeps/s390/s390-64/dl-trampoline.h index 658e3a31c8..33ea3de9f1 100644 --- a/sysdeps/s390/s390-64/dl-trampoline.h +++ b/sysdeps/s390/s390-64/dl-trampoline.h @@ -109,31 +109,34 @@ _dl_runtime_resolve: cfi_startproc .align 16 _dl_runtime_profile: - stmg %r2,%r6,64(%r15) # save call-clobbered arg regs - cfi_offset (r2, -96) # + r6 needed as arg for - cfi_offset (r3, -88) # _dl_profile_fixup - cfi_offset (r4, -80) - cfi_offset (r5, -72) - cfi_offset (r6, -64) - std %f0,104(%r15) - cfi_offset (f0, -56) - std %f2,112(%r15) - cfi_offset (f2, -48) - std %f4,120(%r15) - cfi_offset (f4, -40) - std %f6,128(%r15) - cfi_offset (f6, -32) stg %r12,24(%r15) # r12 is used as backup of r15 cfi_offset (r12, -136) stg %r14,32(%r15) cfi_offset (r14, -128) lgr %r12,%r15 # backup stack pointer cfi_def_cfa_register (12) + aghi %r15,-360 # create stack frame: + # 160 + sizeof(La_s390_64_regs) + stg %r12,0(%r15) # save backchain + + stmg %r2,%r6,160(%r15) # save call-clobbered arg regs + cfi_offset (r2, -360) # + r6 needed as arg for + cfi_offset (r3, -352) # _dl_profile_fixup + cfi_offset (r4, -344) + cfi_offset (r5, -336) + cfi_offset (r6, -328) + std %f0,200(%r15) + cfi_offset (f0, -320) + std %f2,208(%r15) + cfi_offset (f2, -312) + std %f4,216(%r15) + cfi_offset (f4, -304) + std %f6,224(%r15) + cfi_offset (f6, -296) #ifdef RESTORE_VRS - aghi %r15,-288 # create stack frame .machine push .machine "z13" - vstm %v24,%v31,160(%r15)# store call-clobbered vector argument registers + vstm %v24,%v31,232(%r15) # store call-clobbered vector arguments cfi_offset (v24, -288) cfi_offset (v25, -272) cfi_offset (v26, -256) @@ -143,31 +146,28 @@ _dl_runtime_profile: cfi_offset (v30, -192) cfi_offset (v31, -176) .machine pop -#else - aghi %r15,-160 # create stack frame #endif - stg %r12,0(%r15) # save backchain lmg %r2,%r3,48(%r12) # load arguments saved by PLT lgr %r4,%r14 # return address as third parameter - la %r5,64(%r12) # pointer to struct La_s390_64_regs + la %r5,160(%r15) # pointer to struct La_s390_64_regs la %r6,40(%r12) # long int * framesize brasl %r14,_dl_profile_fixup # call resolver lgr %r1,%r2 # function addr returned in r2 - ld %f0,104(%r12) # restore call-clobbered arg fprs - ld %f2,112(%r12) - ld %f4,120(%r12) - ld %f6,128(%r12) + ld %f0,200(%r15) # restore call-clobbered arg fprs + ld %f2,208(%r15) + ld %f4,216(%r15) + ld %f6,224(%r15) #ifdef RESTORE_VRS .machine push .machine "z13" - vlm %v24,%v31,160(%r15) # restore call-clobbered arg vrs + vlm %v24,%v31,232(%r15) # restore call-clobbered arg vrs .machine pop #endif lg %r0,40(%r12) # load framesize ltgr %r0,%r0 jnm 1f - lmg %r2,%r6,64(%r12) # framesize < 0 means no pltexit call + lmg %r2,%r6,160(%r15) # framesize < 0 means no pltexit call # so we can do a tail call without # copying the arg overflow area lgr %r15,%r12 # remove stack frame @@ -177,7 +177,9 @@ _dl_runtime_profile: br %r1 # tail-call to resolved function cfi_def_cfa_register (12) -1: jz 4f # framesize == 0 ? +1: la %r4,160(%r15) # pointer to struct La_s390_64_regs + stg %r4,64(%r12) + jz 4f # framesize == 0 ? aghi %r0,7 # align framesize to 8 nill %r0,0xfff8 slgr %r15,%r0 # make room for framesize bytes @@ -189,21 +191,33 @@ _dl_runtime_profile: la %r2,8(%r2) # depending on framesize la %r3,8(%r3) brctg %r0,3b -4: lmg %r2,%r6,64(%r12) # restore call-clobbered arg gprs +4: lmg %r2,%r6,0(%r4) # restore call-clobbered arg gprs basr %r14,%r1 # call resolved function - stg %r2,136(%r12) # store return values r2, f0 - std %f0,144(%r12) # to struct La_s390_64_retval - lmg %r2,%r3,48(%r12) # load arguments saved by PLT - la %r4,64(%r12) # pointer to struct La_s390_64_regs - la %r5,136(%r12) # pointer to struct La_s390_64_retval + stg %r2,72(%r12) # store return values r2, f0 + std %f0,80(%r12) # to struct La_s390_64_retval +#ifdef RESTORE_VRS + .machine push + .machine "z13" + vst %v24,88(%r12) # store return value v24 + .machine pop +#endif + lmg %r2,%r4,48(%r12) # r2, r3: load arguments saved by PLT + # r4: pointer to struct La_s390_64_regs + la %r5,72(%r12) # pointer to struct La_s390_64_retval brasl %r14,_dl_call_pltexit lgr %r15,%r12 # remove stack frame cfi_def_cfa_register (15) lg %r14,32(%r15) # restore registers lg %r12,24(%r15) - lg %r2,136(%r15) # restore return values - ld %f0,144(%r15) + lg %r2,72(%r15) # restore return values + ld %f0,80(%r15) +#ifdef RESTORE_VRS + .machine push + .machine "z13" + vl %v24,88(%r15) # restore return value v24 + .machine pop +#endif br %r14 # Jump back to caller cfi_endproc |