diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/Dist | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/Dist | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/m68k/Dist | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/m68k/sysdep.S | 39 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/m68k/sysdep.h | 20 |
5 files changed, 42 insertions, 20 deletions
diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist index a6b5db6749..db0cd6000d 100644 --- a/sysdeps/unix/sysv/linux/Dist +++ b/sysdeps/unix/sysv/linux/Dist @@ -1,3 +1,4 @@ +init-first.h sysctl.c net/if.h nfs/nfs.h diff --git a/sysdeps/unix/sysv/linux/i386/Dist b/sysdeps/unix/sysv/linux/i386/Dist index 780edfca50..d5cc620549 100644 --- a/sysdeps/unix/sysv/linux/i386/Dist +++ b/sysdeps/unix/sysv/linux/i386/Dist @@ -1,3 +1,2 @@ sys/perm.h sys/vm86.h -init-first.h clone.S diff --git a/sysdeps/unix/sysv/linux/m68k/Dist b/sysdeps/unix/sysv/linux/m68k/Dist index a281cba3f9..738b9cc542 100644 --- a/sysdeps/unix/sysv/linux/m68k/Dist +++ b/sysdeps/unix/sysv/linux/m68k/Dist @@ -1,2 +1 @@ -init-first.h clone.S diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.S b/sysdeps/unix/sysv/linux/m68k/sysdep.S index 895ea2770b..674715f824 100644 --- a/sysdeps/unix/sysv/linux/m68k/sysdep.S +++ b/sysdeps/unix/sysv/linux/m68k/sysdep.S @@ -33,8 +33,9 @@ errno: .space 4 _errno = errno /* This name is expected by hj libc.so.5 startup code. */ .text -/* The following code is not used at all in the shared library. - The PIC system call stubs set errno themselves. */ +/* The following code is only used in the shared library when we + compile the reentrant version. Otherwise each system call defines + each own version. */ #ifndef PIC @@ -42,30 +43,34 @@ _errno = errno /* This name is expected by hj libc.so.5 startup code. */ #define _ERRNO_H #include <errnos.h> -.globl errno -.globl __syscall_error - /* The syscall stubs jump here when they detect an error. */ .globl __syscall_error __syscall_error: neg.l %d0 - -#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN - /* We translate the system's EWOULDBLOCK error into EAGAIN. - The GNU C library always defines EWOULDBLOCK==EAGAIN. - EWOULDBLOCK_sys is the original number. */ - move.l #EWOULDBLOCK_sys, %d1 - cmp.l %d0, %d1 - jne 1f - move.l #EAGAIN, %d0 -1: -#endif - move.l %d0, errno +#ifdef _LIBC_REENTRANT + move.l %d0, -(%sp) + jbsr __errno_location + move.l (%sp)+, (%a0) +#endif move.l #-1, %d0 /* Copy return value to %a0 for syscalls that are declared to return a pointer. */ move.l %d0, %a0 rts + .size __syscall_error, . - __syscall_error #endif /* PIC */ + +#ifdef _LIBC_REENTRANT + .globl __errno_location + .type __errno_location, @function +__errno_location: +#ifdef PIC + move.l (%pc, errno@GOTPC), %a0 +#else + lea errno, %a0 +#endif + rts + .size __errno_location, . - __errno_location +#endif diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h index fe2c6aa823..9de750c326 100644 --- a/sysdeps/unix/sysv/linux/m68k/sysdep.h +++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h @@ -78,19 +78,37 @@ Cambridge, MA 02139, USA. */ #ifdef PIC /* Store (- %d0) into errno through the GOT. */ +#ifdef _LIBC_REENTRANT #define SYSCALL_ERROR_HANDLER \ + .type syscall_error, @function; \ syscall_error: \ move.l (errno@GOTPC, %pc), %a0; \ neg.l %d0; \ move.l %d0, (%a0); \ + move.l %d0, -(%sp); \ + jbsr __errno_location@PLTPC \ + move.l (%sp)+, (%a0); \ move.l POUND -1, %d0; \ /* Copy return value to %a0 for syscalls that are declared to return \ a pointer (e.g., mmap). */ \ move.l %d0, %a0; \ rts; #else +#define SYSCALL_ERROR_HANDLER \ + .type syscall_error, @function; \ +syscall_error: \ + move.l (errno@GOTPC, %pc), %a0; \ + neg.l %d0; \ + move.l %d0, (%a0); \ + move.l POUND -1, %d0; \ + /* Copy return value to %a0 for syscalls that are declared to return \ + a pointer (e.g., mmap). */ \ + move.l %d0, %a0; \ + rts; +#endif /* _LIBC_REENTRANT */ +#else #define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */ -#endif +#endif /* PIC */ /* Linux takes system call arguments in registers: |