diff options
Diffstat (limited to 'src/pkg/runtime/linux/386/sys.s')
| -rw-r--r-- | src/pkg/runtime/linux/386/sys.s | 55 |
1 files changed, 34 insertions, 21 deletions
diff --git a/src/pkg/runtime/linux/386/sys.s b/src/pkg/runtime/linux/386/sys.s index 57ffc4aa4..a1505b0b0 100644 --- a/src/pkg/runtime/linux/386/sys.s +++ b/src/pkg/runtime/linux/386/sys.s @@ -8,21 +8,21 @@ #include "386/asm.h" -TEXT exit(SB),7,$0 +TEXT runtime·exit(SB),7,$0 MOVL $252, AX // syscall number MOVL 4(SP), BX INT $0x80 INT $3 // not reached RET -TEXT exit1(SB),7,$0 +TEXT runtime·exit1(SB),7,$0 MOVL $1, AX // exit - exit the current os thread MOVL 4(SP), BX INT $0x80 INT $3 // not reached RET -TEXT write(SB),7,$0 +TEXT runtime·write(SB),7,$0 MOVL $4, AX // syscall - write MOVL 4(SP), BX MOVL 8(SP), CX @@ -30,7 +30,7 @@ TEXT write(SB),7,$0 INT $0x80 RET -TEXT gettime(SB), 7, $32 +TEXT runtime·gettime(SB), 7, $32 MOVL $78, AX // syscall - gettimeofday LEAL 8(SP), BX MOVL $0, CX @@ -47,7 +47,7 @@ TEXT gettime(SB), 7, $32 MOVL BX, (DI) RET -TEXT rt_sigaction(SB),7,$0 +TEXT runtime·rt_sigaction(SB),7,$0 MOVL $174, AX // syscall - rt_sigaction MOVL 4(SP), BX MOVL 8(SP), CX @@ -56,7 +56,7 @@ TEXT rt_sigaction(SB),7,$0 INT $0x80 RET -TEXT sigtramp(SB),7,$40 +TEXT runtime·sigtramp(SB),7,$40 get_tls(CX) // save g @@ -76,7 +76,7 @@ TEXT sigtramp(SB),7,$40 MOVL context+8(FP), BX MOVL BX, 8(SP) - CALL sighandler(SB) + CALL runtime·sighandler(SB) // restore g get_tls(CX) @@ -85,16 +85,16 @@ TEXT sigtramp(SB),7,$40 RET -TEXT sigignore(SB),7,$0 +TEXT runtime·sigignore(SB),7,$0 RET -TEXT sigreturn(SB),7,$0 +TEXT runtime·sigreturn(SB),7,$0 MOVL $173, AX // rt_sigreturn INT $0x80 INT $3 // not reached RET -TEXT ·mmap(SB),7,$0 +TEXT runtime·mmap(SB),7,$0 MOVL $192, AX // mmap2 MOVL 4(SP), BX MOVL 8(SP), CX @@ -110,9 +110,19 @@ TEXT ·mmap(SB),7,$0 INCL AX RET +TEXT runtime·munmap(SB),7,$0 + MOVL $91, AX // munmap + MOVL 4(SP), BX + MOVL 8(SP), CX + INT $0x80 + CMPL AX, $0xfffff001 + JLS 2(PC) + INT $3 + RET + // int32 futex(int32 *uaddr, int32 op, int32 val, // struct timespec *timeout, int32 *uaddr2, int32 val2); -TEXT futex(SB),7,$0 +TEXT runtime·futex(SB),7,$0 MOVL $240, AX // futex MOVL 4(SP), BX MOVL 8(SP), CX @@ -124,7 +134,7 @@ TEXT futex(SB),7,$0 RET // int32 clone(int32 flags, void *stack, M *m, G *g, void (*fn)(void)); -TEXT clone(SB),7,$0 +TEXT runtime·clone(SB),7,$0 MOVL $120, AX // clone MOVL flags+4(SP), BX MOVL stack+8(SP), CX @@ -161,12 +171,12 @@ TEXT clone(SB),7,$0 // In child on new stack. Reload registers (paranoia). MOVL 0(SP), BX // m MOVL 4(SP), DX // g - MOVL 8(SP), CX // fn + MOVL 8(SP), SI // fn MOVL AX, m_procid(BX) // save tid as m->procid // set up ldt 7+id to point at m->tls. - // m->tls is at m+40. newosproc left the id in tls[0]. + // newosproc left the id in tls[0]. LEAL m_tls(BX), BP MOVL 0(BP), DI ADDL $7, DI // m0 is LDT#7. count up. @@ -175,7 +185,7 @@ TEXT clone(SB),7,$0 PUSHL $32 // sizeof tls PUSHL BP // &tls PUSHL DI // tls # - CALL setldt(SB) + CALL runtime·setldt(SB) POPL AX POPL AX POPL AX @@ -186,21 +196,21 @@ TEXT clone(SB),7,$0 MOVL DX, g(AX) MOVL BX, m(AX) - CALL stackcheck(SB) // smashes AX + CALL runtime·stackcheck(SB) // smashes AX, CX MOVL 0(DX), DX // paranoia; check they are not nil MOVL 0(BX), BX // more paranoia; check that stack splitting code works PUSHAL - CALL emptyfunc(SB) + CALL runtime·emptyfunc(SB) POPAL - CALL CX // fn() - CALL exit1(SB) + CALL SI // fn() + CALL runtime·exit1(SB) MOVL $0x1234, 0x1005 RET -TEXT sigaltstack(SB),7,$-8 +TEXT runtime·sigaltstack(SB),7,$-8 MOVL $186, AX // sigaltstack MOVL new+4(SP), BX MOVL old+8(SP), CX @@ -233,7 +243,7 @@ TEXT sigaltstack(SB),7,$-8 #define USEABLE 0x40 // setldt(int entry, int address, int limit) -TEXT setldt(SB),7,$32 +TEXT runtime·setldt(SB),7,$32 MOVL entry+0(FP), BX // entry MOVL address+4(FP), CX // base address @@ -247,8 +257,11 @@ TEXT setldt(SB),7,$32 * To accommodate that rewrite, we translate * the address here and bump the limit to 0xffffffff (no limit) * so that -8(GS) maps to 0(address). + * Also, the final 0(GS) (current 8(CX)) has to point + * to itself, to mimic ELF. */ ADDL $0x8, CX // address + MOVL CX, 0(CX) // set up user_desc LEAL 16(SP), AX // struct user_desc |