mirror of
https://gitlab.com/qemu-project/openbios.git
synced 2024-02-13 08:34:06 +08:00
d92b811c6e
This appears to resolve issues with OpenBIOS crashing when calling OBP functions through the romvec interface due to stack/register issues. Note that this patch also implements pv_printf() and pv_putstr() which appears to fix issues with displaying error messages during Solaris 8 boot. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk> git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@918 f158a5a8-5612-0410-a976-696ce0be7e32
93 lines
2.2 KiB
ArmAsm
93 lines
2.2 KiB
ArmAsm
#include "psr.h"
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#include "asm/asi.h"
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.text
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.align 4
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#define STACKFRAME_SZ 0x60
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/* These are just handy. */
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#define _SV save %sp, -STACKFRAME_SZ, %sp
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#define _RS restore
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#define FLUSH_ALL_KERNEL_WINDOWS \
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_SV; _SV; _SV; _SV; _SV; _SV; _SV; \
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_RS; _RS; _RS; _RS; _RS; _RS; _RS;
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/* Macro for romvec handlers */
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#define ROMVEC_HANDLER(type) \
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\
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.globl type##_handler; \
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\
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type##_handler: \
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\
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FLUSH_ALL_KERNEL_WINDOWS; \
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\
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save %sp, -STACKFRAME_SZ - 0x20, %sp; \
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\
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st %g1, [ %sp + STACKFRAME_SZ + 0x0]; \
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st %g2, [ %sp + STACKFRAME_SZ + 0x4]; \
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st %g3, [ %sp + STACKFRAME_SZ + 0x8]; \
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st %g4, [ %sp + STACKFRAME_SZ + 0xc]; \
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st %g5, [ %sp + STACKFRAME_SZ + 0x10]; \
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st %g6, [ %sp + STACKFRAME_SZ + 0x14]; \
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st %g7, [ %sp + STACKFRAME_SZ + 0x18]; \
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\
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mov %i0, %o0; \
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mov %i1, %o1; \
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mov %i2, %o2; \
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mov %i3, %o3; \
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mov %i4, %o4; \
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mov %i5, %o5; \
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\
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call type; \
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nop; \
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\
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mov %o0, %i0; \
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\
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ld [ %sp + STACKFRAME_SZ + 0x0], %g1; \
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ld [ %sp + STACKFRAME_SZ + 0x4], %g2; \
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ld [ %sp + STACKFRAME_SZ + 0x8], %g3; \
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ld [ %sp + STACKFRAME_SZ + 0xc], %g4; \
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ld [ %sp + STACKFRAME_SZ + 0x10], %g5; \
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ld [ %sp + STACKFRAME_SZ + 0x14], %g6; \
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ld [ %sp + STACKFRAME_SZ + 0x18], %g7; \
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\
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ret; \
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restore; \
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/* Generate handlers which are proxy functions to the
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real C functions that correctly save the globals
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and stack */
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ROMVEC_HANDLER(obp_devopen)
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ROMVEC_HANDLER(obp_devclose)
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ROMVEC_HANDLER(obp_rdblkdev)
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ROMVEC_HANDLER(obp_nbgetchar)
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ROMVEC_HANDLER(obp_nbputchar)
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ROMVEC_HANDLER(obp_putstr)
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ROMVEC_HANDLER(obp_printf)
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ROMVEC_HANDLER(obp_reboot)
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ROMVEC_HANDLER(obp_abort)
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ROMVEC_HANDLER(obp_halt)
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ROMVEC_HANDLER(obp_fortheval_v2)
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ROMVEC_HANDLER(obp_inst2pkg)
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ROMVEC_HANDLER(obp_dumb_memalloc)
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ROMVEC_HANDLER(obp_dumb_memfree)
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ROMVEC_HANDLER(obp_dumb_mmap)
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ROMVEC_HANDLER(obp_dumb_munmap)
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ROMVEC_HANDLER(obp_devread)
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ROMVEC_HANDLER(obp_devwrite)
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ROMVEC_HANDLER(obp_devseek)
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ROMVEC_HANDLER(obp_cpustart)
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ROMVEC_HANDLER(obp_cpustop)
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ROMVEC_HANDLER(obp_cpuidle)
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ROMVEC_HANDLER(obp_cpuresume)
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ROMVEC_HANDLER(obp_nextnode)
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ROMVEC_HANDLER(obp_child)
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ROMVEC_HANDLER(obp_proplen)
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ROMVEC_HANDLER(obp_getprop)
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ROMVEC_HANDLER(obp_setprop)
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ROMVEC_HANDLER(obp_nextprop)
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