a7364adeb9
* arm/crt0.S: Copied from newlib and it now also sets up stacks for
FIQ and IRQ mode, plus calls hardware_init_hook() and
software_init_hook() if present.
* arm/libcfunc.c, arm/swi.h, arm/syscalls.c: Copied
from newlib.
* arm/Makefile.in: Build crt0.o, rdpmon-crt0.o, rdimon-crt0.o,
librdpmon.a, librdimon.a - support file for "bare" setup, as well
as "RDP" and "RDI" monitors.
* arm/coff-rdpmon.specs, arm/elf-rdpmon.specs,
arm/coff-rdimon.specs, arm/elf-rdimon.specs: gcc specs files to go
with above mentioned support libs and startfiles.
41 lines
980 B
C
41 lines
980 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; swi %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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