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The stack layout changed in r23983. Since then user_debug_post_syscall()

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wouldn't be passed the syscall start time anymore. Fixes weird syscall
timings when using strace.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26243 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2008-07-03 21:14:54 +00:00
parent dcdf3137e1
commit 71dffe8b84
1 changed files with 4 additions and 3 deletions
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src/system/kernel/arch/x86/arch_interrupts.S
+4 -3
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@@ -357,7 +357,8 @@ handle_syscall:
movl %eax,%ds movl %eax,%ds
movl %eax,%es movl %eax,%es
lea 4(%esp), %ebp // stack frame pointer is the iframe lea 4(%esp), %ebp // skipping the return address, the stack
// frame pointer is the iframe
movl %dr3, %edi // thread pointer movl %dr3, %edi // thread pointer
// disable breakpoints, if installed // disable breakpoints, if installed
@@ -437,8 +438,8 @@ handle_syscall:
// post syscall debugging // post syscall debugging
testl $THREAD_FLAGS_DEBUGGER_INSTALLED, THREAD_flags(%edi) testl $THREAD_FLAGS_DEBUGGER_INSTALLED, THREAD_flags(%edi)
jz 1f jz 1f
pushl -4(%ebp) // syscall start time pushl -8(%ebp) // syscall start time
pushl -8(%ebp) pushl -12(%ebp)
movl IFRAME_edx(%ebp), %edx // syscall return value movl IFRAME_edx(%ebp), %edx // syscall return value
movl IFRAME_eax(%ebp), %eax movl IFRAME_eax(%ebp), %eax
push %edx push %edx