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authorRoland McGrath <roland@gnu.org>1996-03-14 11:20:03 +0000
committerRoland McGrath <roland@gnu.org>1996-03-14 11:20:03 +0000
commit52e9a9d1187e1a2a7357f3a0f353058e14667d62 (patch)
treed898bcf42f7d0a756d27f8386c093f338699a6c8 /sysdeps/unix
parent6c46dada59a56f8748f6d956ef5d318155195840 (diff)
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Thu Mar 14 06:01:07 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* string/strnlen.c: New file. * string/Makefile (routines): Add strnlen. * string/string.h [__USE_GNU] (strnlen): Declare new function. [__OPTIMIZE__]: Define extern inline implementation of it. * stdlib/erand48_r.c: Use __mpn_construct_double instead of ldexp and addition, to avoid using anything from -lm. Mon Mar 4 21:57:14 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/m68k/Makefile: New file. * sysdeps/unix/sysv/linux/m68k/sysdep.h (SYS_ify): Redefine. (CALL_MCOUNT): New macro, empty unless [PROF]. (ENTRY): Do CALL_MCOUNT just after the label. (JUMPTARGET): New macro. (SYSCALL_ERROR_HANDLER): Fix syntax. Thu Mar 14 04:20:48 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu> * sysdeps/unix/sysv/linux/init-first.c (init): Call `__personality' function instead of using inline asm i386 syscall. * sysdeps/unix/sysv/linux/syscalls.list: Add personality syscall. * posix/unistd.h [__USE_BSD]: Declare usleep. * misc/efgcvt.c (MAXDIG): New macro computed from <floats.h> constants. (fcvt, ecvt): Use it for buffer size. * stdlib/drand48-iter.c (__drand48_iterate): Use u_int64_t instead of conditionalizing long vs long long. * stdlib/drand48-iter.c (__drand48_iterate): Don't check for null pointers; never return EFAULT. * stdlib/drand48_r.c (drand48_r): Likewise. * stdlib/erand48_r.c (erand48_r): Likewise.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/sysv/linux/m68k/Makefile3
-rw-r--r--sysdeps/unix/sysv/linux/m68k/sysdep.h34
2 files changed, 35 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/Makefile b/sysdeps/unix/sysv/linux/m68k/Makefile
new file mode 100644
index 0000000000..bdbd1057c4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/m68k/Makefile
@@ -0,0 +1,3 @@
+# Linux/m68k uses Motorola asm syntax and the ELF format.
+
+m68k-syntax-flag = -DMOTOROLA_SYNTAX
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h
index 9b6c8e1975..ee481172d3 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.h
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h
@@ -23,6 +23,17 @@ Cambridge, MA 02139, USA. */
#include <sysdeps/unix/sysdep.h>
+/* For Linux we can use the system call table in the header file
+ /usr/include/asm/unistd.h
+ of the kernel. But these symbols do not follow the SYS_* syntax
+ so we have to redefine the `SYS_ify' macro here. */
+#undef SYS_ify
+#ifdef __STDC__
+# define SYS_ify(syscall_name) __NR_##syscall_name
+#else
+# define SYS_ify(syscall_name) __NR_/**/syscall_name
+#endif
+
#ifdef ASSEMBLER
#define POUND #
@@ -32,7 +43,26 @@ Cambridge, MA 02139, USA. */
.globl name; \
.type name, @function; \
.align 4; \
- name##:
+ C_LABEL(name) \
+ CALL_MCOUNT
+
+/* If compiled for profiling, call `_mcount' at the start of each function. */
+#ifdef PROF
+/* The mcount code relies on a normal frame pointer being on the stack
+ to locate our caller, so push one just for its benefit. */
+#define CALL_MCOUNT \
+ move.l %fp, -(%sp); move.l %sp, %fp; \
+ jbsr JUMPTARGET (_mcount); \
+ move.l (%sp)+, %fp;
+#else
+#define CALL_MCOUNT /* Do nothing. */
+#endif
+
+#ifdef PIC
+#define JUMPTARGET(name) name##@PLTPC
+#else
+#define JUMPTARGET(name) name
+#endif
/* Since C identifiers are not normally prefixed with an underscore
on this system, the asm identifier `syscall_error' intrudes on the
@@ -53,7 +83,7 @@ Cambridge, MA 02139, USA. */
/* Store (- %d0) into errno through the GOT. */
#define SYSCALL_ERROR_HANDLER \
syscall_error: \
- move.l (errno@GOTPC.l, %pc), %a0; \
+ move.l (errno@GOTPC, %pc), %a0; \
neg.l %d0; \
move.l %d0, (%a0); \
move.l POUND -1, %d0; \