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2003-03-18 Till Straumann <strauman@slac.stanford.edu>

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PR 356/bsps
	This patch makes RTEMS/powerpc/shared EABI compliant.
	* irq/irq_init.c, start/Makefile.am, start/start.S, startup/bspstart.c,
	startup/pgtbl_setup.c, vectors/vectors.h, vectors/vectors_init.c:
	zero_bss() should clear not only bss but sbss and sbss2
	also (this is probably a bugfix, as sbss/sbss2 are
	probably used even if -msdata=eabi is not specified).
	* start/rtems_crti.S: New file which must
	be linked immediately after ecrti.o. rtems_crti.o contains
	a code snippet who lets __init() return immediately. Also,
	a new entry point '_init' to the C++ Ctors is generated
	for use by the RTEMS Thread_Handler.
This commit is contained in:
Joel Sherrill
2003-03-18 19:20:55 +00:00
parent c4561f251d
commit 64f8ae44cc
9 changed files with 84 additions and 22 deletions
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8
c/src/lib/libbsp/powerpc/shared/irq/irq_init.c
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@@ -43,9 +43,9 @@ typedef struct {
pci_isa_bridge_device* via_82c586 = 0;
static pci_isa_bridge_device bridge;
extern unsigned int external_exception_vector_prolog_code_size;
extern unsigned int external_exception_vector_prolog_code_size[];
extern void external_exception_vector_prolog_code();
extern unsigned int decrementer_exception_vector_prolog_code_size;
extern unsigned int decrementer_exception_vector_prolog_code_size[];
extern void decrementer_exception_vector_prolog_code();
/*
@@ -296,7 +296,7 @@ void BSP_rtems_irq_mng_init(unsigned cpuId)
vectorDesc.exceptIndex = ASM_DEC_VECTOR;
vectorDesc.hdl.vector = ASM_DEC_VECTOR;
vectorDesc.hdl.raw_hdl = decrementer_exception_vector_prolog_code;
vectorDesc.hdl.raw_hdl_size = (unsigned) &decrementer_exception_vector_prolog_code_size;
vectorDesc.hdl.raw_hdl_size = (unsigned) decrementer_exception_vector_prolog_code_size;
vectorDesc.on = nop_func;
vectorDesc.off = nop_func;
vectorDesc.isOn = connected;
@@ -306,7 +306,7 @@ void BSP_rtems_irq_mng_init(unsigned cpuId)
vectorDesc.exceptIndex = ASM_EXT_VECTOR;
vectorDesc.hdl.vector = ASM_EXT_VECTOR;
vectorDesc.hdl.raw_hdl = external_exception_vector_prolog_code;
vectorDesc.hdl.raw_hdl_size = (unsigned) &external_exception_vector_prolog_code_size;
vectorDesc.hdl.raw_hdl_size = (unsigned) external_exception_vector_prolog_code_size;
if (!mpc60x_set_exception (&vectorDesc)) {
BSP_panic("Unable to initialize RTEMS external raw exception\n");
}