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hw-breakpoints: Fix broken a.out format dump

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Fix the broken a.out format dump. For now we only dump the ptrace
breakpoints.

TODO: Dump every perf breakpoints for the current thread, not only
ptrace based ones.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
This commit is contained in:
Frederic Weisbecker
2009-11-09 21:03:43 +01:00
parent 676c0dbe6e
commit 9f6b3c2c30
3 changed files with 39 additions and 8 deletions
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10
arch/x86/include/asm/a.out-core.h
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@@ -17,6 +17,7 @@
#include <linux/user.h>
#include <linux/elfcore.h>
#include <asm/debugreg.h>
/*
* fill in the user structure for an a.out core dump
@@ -32,14 +33,7 @@ static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
>> PAGE_SHIFT;
dump->u_dsize -= dump->u_tsize;
dump->u_ssize = 0;
dump->u_debugreg[0] = current->thread.debugreg[0];
dump->u_debugreg[1] = current->thread.debugreg[1];
dump->u_debugreg[2] = current->thread.debugreg[2];
dump->u_debugreg[3] = current->thread.debugreg[3];
dump->u_debugreg[4] = 0;
dump->u_debugreg[5] = 0;
dump->u_debugreg[6] = current->thread.debugreg6;
dump->u_debugreg[7] = current->thread.debugreg7;
aout_dump_debugregs(dump);
if (dump->start_stack < TASK_SIZE)
dump->u_ssize = ((unsigned long)(TASK_SIZE - dump->start_stack))