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upgrade rtt 5.2.2

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wmano
2025-09-03 20:50:03 +08:00
parent f6985d97c5
commit 5409d3a614
41 changed files with 1130 additions and 988 deletions
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rt-thread/libcpu/arm/cortex-m4/context_iar.S
+19 -5
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@@ -237,14 +237,28 @@ HardFault_Handler:
MRS r0, psp ; get fault context from thread.
_get_sp_done
STMFD r0!, {r4 - r11} ; push r4 - r11 register
;STMFD r0!, {lr} ; push exec_return register
#if defined ( __ARMVFP__ )
SUB r0, r0, #0x04 ; push dummy for flag
STR lr, [r0]
TST lr, #0x10 ; if(!EXC_RETURN[4])
BNE skip_push_fpu
VSTMDB r0!, {d8 - d15} ; push FPU register s16~s31
skip_push_fpu
#endif
STMFD r0!, {r4 - r11} ; push r4 - r11 register
#if defined ( __ARMVFP__ )
MOV r4, #0x00 ; flag = 0
TST lr, #0x10 ; if(!EXC_RETURN[4])
BNE push_flag
MOV r4, #0x01 ; flag = 1
push_flag
SUB r0, r0, #0x04
STR lr, [r0]
STR r4, [r0] ; push flag
#endif
SUB r0, r0, #0x04
STR lr, [r0] ; push exec_return register
TST lr, #0x04 ; if(!EXC_RETURN[2])
BEQ _update_msp