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runtime: simplify constant strings in asm

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As of CL 163747, we can write arbitrary length strings
in assembly DATA instructions.

Make use of it here to improve readability.

Change-Id: I556279ca893f527874e3b26112c43573834ccd9c
Reviewed-on: https://go-review.googlesource.com/c/go/+/167386
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2019-02-27 10:14:44 -08:00
parent 7c04110c52
commit ee1c76dccd
2 changed files with 5 additions and 15 deletions
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12
src/runtime/asm_386.s
View File

@ -248,16 +248,8 @@ ok:
CALL runtime·abort(SB)
RET
DATA bad_proc_msg<>+0x00(SB)/8, $"This pro"
DATA bad_proc_msg<>+0x08(SB)/8, $"gram can"
DATA bad_proc_msg<>+0x10(SB)/8, $" only be"
DATA bad_proc_msg<>+0x18(SB)/8, $" run on "
DATA bad_proc_msg<>+0x20(SB)/8, $"processo"
DATA bad_proc_msg<>+0x28(SB)/8, $"rs with "
DATA bad_proc_msg<>+0x30(SB)/8, $"MMX supp"
DATA bad_proc_msg<>+0x38(SB)/4, $"ort."
DATA bad_proc_msg<>+0x3c(SB)/1, $0xa
GLOBL bad_proc_msg<>(SB), RODATA, $0x3d
DATA bad_proc_msg<>+0x00(SB)/61, $"This program can only be run on processors with MMX support.\n"
GLOBL bad_proc_msg<>(SB), RODATA, $61
DATA runtime·mainPC+0(SB)/4,$runtime·main(SB)
GLOBL runtime·mainPC(SB),RODATA,$4

8
src/runtime/asm_amd64.s
View File

@ -1438,10 +1438,8 @@ flush:
MOVQ 96(SP), R15
JMP ret
DATA debugCallFrameTooLarge<>+0x00(SB)/8, $"call fra"
DATA debugCallFrameTooLarge<>+0x08(SB)/8, $"me too l"
DATA debugCallFrameTooLarge<>+0x10(SB)/4, $"arge"
GLOBL debugCallFrameTooLarge<>(SB), RODATA, $0x14 // Size duplicated below
DATA debugCallFrameTooLarge<>+0x00(SB)/20, $"call frame too large"
GLOBL debugCallFrameTooLarge<>(SB), RODATA, $20 // Size duplicated below
// debugCallV1 is the entry point for debugger-injected function
// calls on running goroutines. It informs the runtime that a
@ -1565,7 +1563,7 @@ good:
// The frame size is too large. Report the error.
MOVQ $debugCallFrameTooLarge<>(SB), AX
MOVQ AX, 0(SP)
MOVQ $0x14, 8(SP)
MOVQ $20, 8(SP) // length of debugCallFrameTooLarge string
MOVQ $8, AX
BYTE $0xcc
JMP restore