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git://sourceware.org/git/newlib-cygwin.git
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9bbe6d5d28
* libc/machine/arm/setjmp.S: Add Thumb-2 support.
* libc/sys/arm/crt0.S: Add Thumb-2 startup code.
* libc/sys/arm/libcfunc.c (do_AngelSWI): Use AngelSWIInsn.
* libc/sys/arm/swi.h (AngelSWIInsn, AngelSWIAsm): Define.
* libc/sys/arm/trap.S: Disable for Thumb-2.
41 lines
993 B
C
41 lines
993 B
C
/* Support files for GNU libc. Files in the C namespace go here.
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Files in the system namespace (ie those that start with an underscore)
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go in syscalls.c.
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Note: These functions are in a seperate file so that OS providers can
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overrride the system call stubs (defined in syscalls.c) without having
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to provide libc funcitons as well. */
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#include "swi.h"
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#ifdef ARM_RDI_MONITOR
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static inline int
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do_AngelSWI (int reason, void * arg)
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{
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int value;
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asm volatile ("mov r0, %1; mov r1, %2; " AngelSWIInsn " %a3; mov %0, r0"
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: "=r" (value) /* Outputs */
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: "r" (reason), "r" (arg), "i" (AngelSWI) /* Inputs */
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: "r0", "r1", "lr"
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/* Clobbers r0 and r1, and lr if in supervisor mode */);
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return value;
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}
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#endif /* ARM_RDI_MONITOR */
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void
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abort (void)
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{
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#ifdef ARM_RDI_MONITOR
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do_AngelSWI (AngelSWI_Reason_ReportException,
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(void *) ADP_Stopped_RunTimeError);
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#else
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asm ("mov r0,#17\nswi %a0" :: "i" (SWI_Exit));
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#endif
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}
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void
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alarm (void)
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{
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}
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