{"title":"软件指令计数器","authors":"J. Mellor-Crummey, T. LeBlanc","doi":"10.1145/70082.68189","DOIUrl":null,"url":null,"abstract":"Although several recent papers have proposed architectural support for program debugging and profiling, most processors do not yet provide even basic facilities, such as an instruction counter. As a result, system developers have been forced to invent software solutions. This paper describes our implementation of a software instruction counter for program debugging. We show that an instruction counter can be reasonably implemented in software, often with less than 10% execution overhead. Our experience suggests that a hardware instruction counter is not necessary for a practical implementation of watch-points and reverse execution, however it will make program instrumentation much easier for the system developer.","PeriodicalId":359206,"journal":{"name":"ASPLOS III","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"119","resultStr":"{\"title\":\"A software instruction counter\",\"authors\":\"J. Mellor-Crummey, T. LeBlanc\",\"doi\":\"10.1145/70082.68189\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Although several recent papers have proposed architectural support for program debugging and profiling, most processors do not yet provide even basic facilities, such as an instruction counter. As a result, system developers have been forced to invent software solutions. This paper describes our implementation of a software instruction counter for program debugging. We show that an instruction counter can be reasonably implemented in software, often with less than 10% execution overhead. Our experience suggests that a hardware instruction counter is not necessary for a practical implementation of watch-points and reverse execution, however it will make program instrumentation much easier for the system developer.\",\"PeriodicalId\":359206,\"journal\":{\"name\":\"ASPLOS III\",\"volume\":\"54 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"119\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ASPLOS III\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/70082.68189\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ASPLOS III","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/70082.68189","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Although several recent papers have proposed architectural support for program debugging and profiling, most processors do not yet provide even basic facilities, such as an instruction counter. As a result, system developers have been forced to invent software solutions. This paper describes our implementation of a software instruction counter for program debugging. We show that an instruction counter can be reasonably implemented in software, often with less than 10% execution overhead. Our experience suggests that a hardware instruction counter is not necessary for a practical implementation of watch-points and reverse execution, however it will make program instrumentation much easier for the system developer.
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