diff options
Diffstat (limited to 'ldso')
-rw-r--r-- | ldso/ldso/mips/README | 10 | ||||
-rw-r--r-- | ldso/ldso/mips/dl-syscalls.h | 178 | ||||
-rw-r--r-- | ldso/ldso/mips/ld_syscalls.h | 178 |
3 files changed, 16 insertions, 350 deletions
diff --git a/ldso/ldso/mips/README b/ldso/ldso/mips/README index 520a5eeb6..1cf6301e5 100644 --- a/ldso/ldso/mips/README +++ b/ldso/ldso/mips/README @@ -20,10 +20,12 @@ function 'elf_machine_rel' in 'sysdeps/mips/dl-machine.h'. ld_syscalls.h ------------- -Contains all the macro functions for the system calls as well -as the list of system calls supported. The functions were taken -from the Linux kernel source 2.4.17 and can be found in the -file 'include/asm-mips/unistd.h'. +Used to contain all the macro functions for the system calls +as well as the list of system calls supported. We now include +<sys/syscall.h> but with the __set_errno macro defined empty +so we can use the same file for the linker as well as userspace. +Original code was taken from the Linux kernel source 2.4.17 and +can be found in the file 'include/asm-mips/unistd.h'. ld_sysdep.h ----------- diff --git a/ldso/ldso/mips/dl-syscalls.h b/ldso/ldso/mips/dl-syscalls.h index da17d63b9..793dc9110 100644 --- a/ldso/ldso/mips/dl-syscalls.h +++ b/ldso/ldso/mips/dl-syscalls.h @@ -1,175 +1,7 @@ -/* - * This file contains the system call macros and syscall - * numbers used by the shared library loader. Taken from - * Linux/MIPS 2.4.17 version kernel. - */ +/* Define the __set_errno macro as nothing so that we don't bother + * setting errno, which is important since we make system calls + * before the errno symbol is dynamicly linked. */ -#ifndef _SYS_STAT_H -#define _SYS_STAT_H +#define __set_errno(X) +#include "sys/syscall.h" -#define new_stat stat -#include <asm/stat.h> - -#define __NR_SYSCALL_BASE 4000 - -#define __NR_exit (__NR_SYSCALL_BASE + 1) -#define __NR_read (__NR_SYSCALL_BASE + 3) -#define __NR_write (__NR_SYSCALL_BASE + 4) -#define __NR_open (__NR_SYSCALL_BASE + 5) -#define __NR_close (__NR_SYSCALL_BASE + 6) -#define __NR_getuid (__NR_SYSCALL_BASE + 24) -#define __NR_getgid (__NR_SYSCALL_BASE + 47) -#define __NR_geteuid (__NR_SYSCALL_BASE + 49) -#define __NR_getegid (__NR_SYSCALL_BASE + 50) -#define __NR_readlink (__NR_SYSCALL_BASE + 85) -#define __NR_mmap (__NR_SYSCALL_BASE + 90) -#define __NR_munmap (__NR_SYSCALL_BASE + 91) -#define __NR_stat (__NR_SYSCALL_BASE + 106) -#define __NR_mprotect (__NR_SYSCALL_BASE + 125) - -/* Here are the macros which define how this platform makes - * system calls. This particular variant does _not_ set - * errno (note how it is disabled in __syscall_return) since - * these will get called before the errno symbol is dynamicly - * linked. */ - -#define _syscall0(type,name) \ -type name(void) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %2\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return -1; \ -} - -#define _syscall1(type,name,atype,a) \ -type name(atype a) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %3\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "r" (__a0), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall2(type,name,atype,a,btype,b) \ -type name(atype a, btype b) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %4\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "r" (__a0), "r" (__a1), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall3(type,name,atype,a,btype,b,ctype,c) \ -type name(atype a, btype b, ctype c) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a2 asm("$6") = (unsigned long) c; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %5\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \ -type name(atype a, btype b, ctype c, dtype d) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a2 asm("$6") = (unsigned long) c; \ - register unsigned long __a3 asm("$7") = (unsigned long) d; \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %5\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "+r" (__a3) \ - : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \ -type name(atype a, btype b, ctype c, dtype d, etype e, ftype f) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a2 asm("$6") = (unsigned long) c; \ - register unsigned long __a3 asm("$7") = (unsigned long) d; \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "lw\t$2, %6\n\t" \ - "lw\t$8, %7\n\t" \ - "subu\t$29, 32\n\t" \ - "sw\t$2, 16($29)\n\t" \ - "sw\t$8, 20($29)\n\t" \ - "li\t$2, %5\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - "addiu\t$29, 32\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "+r" (__a3) \ - : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name), \ - "m" ((unsigned long)e), "m" ((unsigned long)f) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#endif diff --git a/ldso/ldso/mips/ld_syscalls.h b/ldso/ldso/mips/ld_syscalls.h index da17d63b9..793dc9110 100644 --- a/ldso/ldso/mips/ld_syscalls.h +++ b/ldso/ldso/mips/ld_syscalls.h @@ -1,175 +1,7 @@ -/* - * This file contains the system call macros and syscall - * numbers used by the shared library loader. Taken from - * Linux/MIPS 2.4.17 version kernel. - */ +/* Define the __set_errno macro as nothing so that we don't bother + * setting errno, which is important since we make system calls + * before the errno symbol is dynamicly linked. */ -#ifndef _SYS_STAT_H -#define _SYS_STAT_H +#define __set_errno(X) +#include "sys/syscall.h" -#define new_stat stat -#include <asm/stat.h> - -#define __NR_SYSCALL_BASE 4000 - -#define __NR_exit (__NR_SYSCALL_BASE + 1) -#define __NR_read (__NR_SYSCALL_BASE + 3) -#define __NR_write (__NR_SYSCALL_BASE + 4) -#define __NR_open (__NR_SYSCALL_BASE + 5) -#define __NR_close (__NR_SYSCALL_BASE + 6) -#define __NR_getuid (__NR_SYSCALL_BASE + 24) -#define __NR_getgid (__NR_SYSCALL_BASE + 47) -#define __NR_geteuid (__NR_SYSCALL_BASE + 49) -#define __NR_getegid (__NR_SYSCALL_BASE + 50) -#define __NR_readlink (__NR_SYSCALL_BASE + 85) -#define __NR_mmap (__NR_SYSCALL_BASE + 90) -#define __NR_munmap (__NR_SYSCALL_BASE + 91) -#define __NR_stat (__NR_SYSCALL_BASE + 106) -#define __NR_mprotect (__NR_SYSCALL_BASE + 125) - -/* Here are the macros which define how this platform makes - * system calls. This particular variant does _not_ set - * errno (note how it is disabled in __syscall_return) since - * these will get called before the errno symbol is dynamicly - * linked. */ - -#define _syscall0(type,name) \ -type name(void) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %2\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return -1; \ -} - -#define _syscall1(type,name,atype,a) \ -type name(atype a) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %3\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "r" (__a0), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall2(type,name,atype,a,btype,b) \ -type name(atype a, btype b) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %4\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "r" (__a0), "r" (__a1), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall3(type,name,atype,a,btype,b,ctype,c) \ -type name(atype a, btype b, ctype c) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a2 asm("$6") = (unsigned long) c; \ - register unsigned long __a3 asm("$7"); \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %5\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "=r" (__a3) \ - : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \ -type name(atype a, btype b, ctype c, dtype d) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a2 asm("$6") = (unsigned long) c; \ - register unsigned long __a3 asm("$7") = (unsigned long) d; \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "li\t$2, %5\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "+r" (__a3) \ - : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \ -type name(atype a, btype b, ctype c, dtype d, etype e, ftype f) \ -{ \ - register unsigned long __v0 asm("$2") = __NR_##name; \ - register unsigned long __a0 asm("$4") = (unsigned long) a; \ - register unsigned long __a1 asm("$5") = (unsigned long) b; \ - register unsigned long __a2 asm("$6") = (unsigned long) c; \ - register unsigned long __a3 asm("$7") = (unsigned long) d; \ - \ - __asm__ volatile ( \ - ".set\tnoreorder\n\t" \ - "lw\t$2, %6\n\t" \ - "lw\t$8, %7\n\t" \ - "subu\t$29, 32\n\t" \ - "sw\t$2, 16($29)\n\t" \ - "sw\t$8, 20($29)\n\t" \ - "li\t$2, %5\t\t\t# " #name "\n\t" \ - "syscall\n\t" \ - "addiu\t$29, 32\n\t" \ - ".set\treorder" \ - : "=&r" (__v0), "+r" (__a3) \ - : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name), \ - "m" ((unsigned long)e), "m" ((unsigned long)f) \ - : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \ - \ - if (__a3 == 0) \ - return (type) __v0; \ - return (type) -1; \ -} - -#endif |