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[libcpu][arm] 修复因提前返回,导致sp指针不对称问题

tangyuxin 5 years ago
parent
ae7a33c27c
commit
8316646b85
3 changed files with 0 additions and 3 deletions
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  1. 0 1
      libcpu/arm/cortex-m3/cpuport.c
  2. 0 1
      libcpu/arm/cortex-m4/cpuport.c
  3. 0 1
      libcpu/arm/cortex-m7/cpuport.c

+ 0 - 1
libcpu/arm/cortex-m3/cpuport.c
View File 

@@ -395,7 +395,6 @@ int __rt_ffs(int value)
 
         "ADDS    r0, r0, #0x01        \n"
 
 
         "exit:                        \n"
 
-        "BX      lr                   \n"
 
 
         : "=r"(value)
 
         : "r"(value)

+ 0 - 1
libcpu/arm/cortex-m4/cpuport.c
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@@ -479,7 +479,6 @@ int __rt_ffs(int value)
 
         "ADDS    r0, r0, #0x01        \n"
 
 
         "exit:                        \n"
 
-        "BX      lr                   \n"
 
 
         : "=r"(value)
 
         : "r"(value)

+ 0 - 1
libcpu/arm/cortex-m7/cpuport.c
View File 

@@ -479,7 +479,6 @@ int __rt_ffs(int value)
 
         "ADDS    r0, r0, #0x01        \n"
 
 
         "exit:                        \n"
 
-        "BX      lr                   \n"
 
 
         : "=r"(value)
 
         : "r"(value)