diff -NurpP util-vserver-0.30.210/lib/syscall-alternative.h util-vserver-0.30.210-shiny10/lib/syscall-alternative.h --- util-vserver-0.30.210/lib/syscall-alternative.h 2005-10-28 18:33:50.000000000 +0200 +++ util-vserver-0.30.210-shiny10/lib/syscall-alternative.h 2006-04-02 21:07:52.000000000 +0200 @@ -1,9 +1,7 @@ - // from http://vserver.13thfloor.at/Experimental/SYSCALL/syscall_shiny7.h - #ifndef __SYSCALL_NEW_H #define __SYSCALL_NEW_H -/* Copyright (C) 2005 Herbert Pötzl +/* Copyright (C) 2005-2006 Herbert Pötzl global config options @@ -39,12 +37,13 @@ __sysc_rcon(n) ... syscall register constraint __sysc_regs ... list of input regs for clobber __sysc_type ... register type + __sysc_aout ... asm code output constraint if all else fails __sc_asmload(n,N,...) ... asm code to prepare arguments __sc_asmsysc(n,N) ... asm code to execute syscall - __sc_asmsave(n,r,e) ... asm code to store results + __sc_asmsave(n) ... asm code to store results */ @@ -243,7 +242,8 @@ sret: r0(r28) serr: (sret >= (unsigned)-EMAXERRNO) call: ble 0x100(%%sr2, %%r0) - clob: r1, r2, r4, r20, r29, r31, memory + clob: r1, r2, (r4), r20, r29, r31, memory + picr: pr(r19) */ #define __sysc_max_err 4095 @@ -253,13 +253,21 @@ ("r26", "r25", "r24", "r23", "r22", "r21") #define __sysc_cmd_sys "ble 0x100(%%sr2,%%r0)" -#define __sysc_cmd_fin "ldi %0,%%r20" -#define __sysc_clobber __sysc_regs, \ - "r1", "r2", "r4", "r20", "r29", "r31", "memory" +#define __sysc_pre(n) \ + __pasm(n,1,1, "copy %%r19, %%r4" , ) -#warning syscall arch hppa not tested yet +#define __sysc_fin(n) \ + __casm(n,1,1, "ldi %0,%%r20" , )\ + __pasm(n,1,1, "copy %%r4, %%r19" , ) +#ifndef __PIC__ +#define __sysc_clobber __sysc_regs, \ + "r1", "r2", "r20", "r29", "r31", "memory" +#else +#define __sysc_clobber __sysc_regs, \ + "r1", "r2", "r4", "r20", "r29", "r31", "memory" +#endif /* ***************************************** @@ -277,6 +285,7 @@ sret: r0(eax) serr: (sret >= (unsigned)-EMAXERRNO) call: int 0x80 + picr: pr(ebx) clob: memory */ @@ -301,15 +310,18 @@ __casm(n,6,1, "pushl %%ebp" , )\ ""::__sc_iregs(n,__VA_ARGS__):__sysc_clobber) +#define __sc_asmsave(n) + #define __sysc_pre(n) \ __casm(n,6,1, "movl %%eax,%%ebp" , )\ - __casm(n,0,1, "movl %0,%%eax" , )\ + __casm(n,0,1, "movl %1,%%eax" , )\ #define __sysc_fin(n) \ __casm(n,6,1, "popl %%ebp" , )\ __pasm(n,1,1, "popl %%ebx" , )\ -#define __sysc_clobber __sysc_regs, "eax", "memory" +#define __sysc_aout "=a"(__res) +#define __sysc_clobber __sysc_regs, "memory" /* ***************************************** @@ -399,8 +411,43 @@ #elif defined(__mips__) -#error syscall arch mips not implemented yet +/* The ABIO32 calling convention uses a0-a3 to pass the first + four arguments, the rest is passed on the userspace stack. The 5th arg + starts at 16($sp). + + ABIN32 and ABI64 pass 6 args in a0-a3, t0-t1. + + scnr: id(v0) + args: a1(a0), a2(a1), a3(a2), a4(a3), a5(16($sp)), a6(20($sp)) + sret: r0(v0) + serr: e0(a3) + call: syscall + clob: at, v0, t0-t7, t8-t9 +*/ + +#define __sysc_reg_cid "v0" +#define __sysc_reg_ret "v0" +#define __sysc_reg_err "a3" +#define __sysc_cmd_sys "syscall" + +#define __sysc_reg(n) __arg_##n\ + ("a0","a1","a2","a3", "t0", "t1") +#define __sysc_clobber "$1", "$3", "$8", "$9", "$10", "$11", "$12", \ + "$13", "$14", "$15", "$24", "$25", "memory" + +#if _MIPS_SIM == _ABIO32 +#define __sysc_pre(n) \ + __casm(n,5,1,"addiu $sp,$sp,-32",) \ + __casm(n,6,1,"sw $9,20($sp)",) \ + __casm(n,5,1,"sw $8, 16($sp)",) +#define __sysc_fin(n) \ + __casm(n,5,1,"addiu $sp,$sp,32",) +#elif (_MIPS_SIM == _ABIN32) || (_MIPS_SIM == _ABI64) +#warning syscall arch mips with ABI N32 and 64 not tested yet +#else +#error unknown mips ABI version +#endif /* ***************************************** @@ -651,6 +698,7 @@ #define __sysc_clobber __sysc_regs, \ "cc", "r11", "rcx", "memory" +#define __sysc_aout "=a"(__res) #else #error unknown kernel arch @@ -834,7 +882,7 @@ #define __sc_inp_def(n,value) #endif -#ifndef __sysc_save +#if !defined(__sysc_save) && !defined(__sysc_aout) #define __sc_res_def(n,r) __sc_asm_reg(n, r); #else #define __sc_res_def(n,r) __sc_reg(n); @@ -865,7 +913,6 @@ #endif - #ifdef __sc_complex /* complex result */ #ifndef __sysc_errc @@ -918,6 +965,7 @@ return (type)(res) #endif + #define __sc_results \ __sc_res_def(__res, __sysc_reg_res) @@ -939,8 +987,13 @@ __casm(n,3,0,"%3 ",) __casm(n,4,0,"%4 ",) __casm(n,5,0,"%5 ",) \ __casm(n,6,0,"%6 ",) "*/" +#ifdef __sysc_aout +#define __sc_dummy_save(n) +#define __sc_asmsave(n) +#else #define __sc_dummy_save(n) "/* gcc dummy save " \ __casm(n,0,0,"%0 ",) __casm(n,1,0,"%1 ",) "*/" +#endif #define __comment(name) "\t/* kernel sys_" \ #name "[" __stringify(__sc_id(name)) "] */" @@ -1006,10 +1059,14 @@ #endif #endif +#ifndef __sysc_aout +#define __sysc_aout +#endif + #ifndef __sc_asmsysc #define __sc_asmsysc(n,N) __sc_asm_vol( \ __casm(n,0,0, __sc_cmds(n,N) , )\ - ::"i"(__sc_id(N)) : __sysc_clobber) + :__sysc_aout:"i"(__sc_id(N)) : __sysc_clobber) #endif #ifndef __sc_asmsave @@ -1031,33 +1088,33 @@ -#define _syscall0(type, name) \ +#define _syscall0(type, name) \ type name(void) \ __sc_body(0, type, name, *) -#define _syscall1(type, name, type1, arg1) \ +#define _syscall1(type, name, type1, arg1) \ type name(type1 arg1) \ __sc_body(1, type, name, arg1) -#define _syscall2(type, name, type1, arg1, type2, arg2) \ +#define _syscall2(type, name, type1, arg1, type2, arg2) \ type name(type1 arg1, type2 arg2) \ __sc_body(2, type, name, arg1, arg2) -#define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ +#define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ type name(type1 arg1, type2 arg2, type3 arg3) \ __sc_body(3, type, name, arg1, arg2, arg3) -#define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \ +#define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4) \ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ __sc_body(4, type, name, arg1, arg2, arg3, arg4) -#define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \ - type4, arg4, type5, arg5) \ +#define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \ + type4, arg4, type5, arg5) \ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ __sc_body(5, type, name, arg1, arg2, arg3, arg4, arg5) -#define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \ +#define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4, type5, arg5, type6, arg6) \ type name(type1 arg1, type2 arg2, type3 arg3, \ type4 arg4, type5 arg5, type6 arg6) \