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print call stack on abort

This commit is contained in:
Kartik K. Agaram 2021-05-15 00:09:38 -07:00
parent 858fe603a5
commit 2d4fb39dac
1 changed files with 55 additions and 2 deletions
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57
317abort.subx
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@ -48,7 +48,7 @@ dump-call-stack:
(draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 *(ebx+4) 0xf 0xc)
(draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0 " " 0 0xc)
(containing-function %edx *(ebx+4)) # => eax, ecx
#? (draw-slice-wrapping-right-then-down-from-cursor-over-full-screen 0 %eax %ecx 0 0xc)
(draw-slice-wrapping-right-then-down-from-cursor-over-full-screen 0 %eax %ecx 0 0xc)
# loop update
8b/-> *ebx 3/r32/ebx
#
@ -209,11 +209,18 @@ label-append: # labels: (addr stream {start-address, label-slice}), address: in
56/push-esi
# esi = labels
8b/-> *(ebp+8) 6/r32/esi
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %esi 7 0)
# ecx = labels->write
8b/-> *esi 1/r32/ecx
# labels->data[labels->write] = address
8b/-> *(ebp+0xc) 0/r32/eax
89/<- *(esi+ecx+0xc) 0/r32/eax
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %eax 7 0)
#? 8d/copy-address *(esi+ecx+0xc) 0/r32/eax
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %eax 7 0)
#? {
#? eb/jump loop/disp8
#? }
# labels->data[labels->write+4] = start
8b/-> *(ebp+0x10) 0/r32/eax
89/<- *(esi+ecx+0x10) 0/r32/eax
@ -240,12 +247,14 @@ containing-function: # labels: (addr stream {start-address, label-slice}), addr
52/push-edx
53/push-ebx
56/push-esi
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 *(ebp+0xc) 7 0)
# esi = labels
8b/-> *(ebp+8) 6/r32/esi
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %esi 7 0)
# var curr/ecx: (addr byte) = labels->data
8b/-> *(esi+0xc) 1/r32/ecx
8d/copy-address *(esi+0xc) 1/r32/ecx
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %ecx 7 0)
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 *ecx 7 0)
# var max/edx: (addr byte) = labels->data + labels->write
8b/-> *esi 2/r32/edx
01/add-to %edx 1/r32/ecx
@ -267,6 +276,7 @@ containing-function: # labels: (addr stream {start-address, label-slice}), addr
8b/-> *ecx 0/r32/eax
3b/compare 0/r32/eax *(ebp+0xc)
0f 87/jump-if-addr> break/disp32
#? (draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0 "." 7 0)
# if **(curr+4) not '$' or '@', save curr to previous-function-name
{
8b/-> *(ecx+4) 0/r32/eax
@ -276,6 +286,7 @@ containing-function: # labels: (addr stream {start-address, label-slice}), addr
74/jump-if-= break/disp8
3d/compare-eax-and 0x40/imm32/@
74/jump-if-= break/disp8
#? (draw-text-wrapping-right-then-down-from-cursor-over-full-screen 0 "found" 7 0)
8d/copy-address *(ecx+4) 3/r32/ebx
}
# loop update
@ -283,8 +294,11 @@ containing-function: # labels: (addr stream {start-address, label-slice}), addr
#
e9/jump loop/disp32
}
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %ebx 7 0)
8b/-> *ebx 0/r32/eax
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %eax 7 0)
8b/-> *(ebx+4) 1/r32/ecx
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen 0 %ecx 7 0)
$containing-function:end:
# . restore registers
5e/pop-to-esi
@ -294,3 +308,42 @@ $containing-function:end:
89/<- %esp 5/r32/ebp
5d/pop-to-ebp
c3/return
# unlike variants in .mu files, this only supports ASCII
draw-slice-wrapping-right-then-down-from-cursor-over-full-screen: # screen: (addr screen), start: (addr byte), end: (addr byte), color: int, background-color: int
# . prologue
55/push-ebp
89/<- %ebp 4/r32/esp
# . save registers
50/push-eax
51/push-ecx
52/push-edx
# var curr/ecx: (addr byte) = start
8b/-> *(ebp+0xc) 1/r32/ecx
# edx = end
8b/-> *(ebp+0x10) 2/r32/edx
# eax = 0
b8/copy-to-eax 0/imm32
{
# if (curr >= end) break
39/compare %ecx 2/r32/edx
73/jump-if-addr>= break/disp8
# print *curr
8a/byte-> *ecx 0/r32/eax
#? (draw-int32-hex-wrapping-right-then-down-from-cursor-over-full-screen *(ebp+8) %eax *(ebp+0x14) *(ebp+0x18))
(draw-grapheme-at-cursor *(ebp+8) %eax *(ebp+0x14) *(ebp+0x18))
(move-cursor-rightward-and-downward *(ebp+8))
#
41/increment-ecx
#
eb/jump loop/disp8
}
$draw-slice-wrapping-right-then-down-from-cursor-over-full-screen:end:
# . restore registers
5a/pop-to-edx
59/pop-to-ecx
58/pop-to-eax
# . epilogue
89/<- %esp 5/r32/ebp
5d/pop-to-ebp
c3/return