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runtime: improvements for signal registers

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Fix dumpregs on i386, implement dumpregs for PPC Linux/AIX, get PC on AIX.
    
    Reviewed-on: https://go-review.googlesource.com/56170

From-SVN: r251127
This commit is contained in:
Ian Lance Taylor 2017-08-16 19:04:00 +00:00
parent 7911a54d98
commit 450f20a899
2 changed files with 50 additions and 14 deletions
gcc/go/gofrontend
MERGE
libgo/runtime
go-signal.c

2
gcc/go/gofrontend/MERGE

@ -1,4 +1,4 @@
480fdfa9dd416bd17115a94fa6021c4dd805fc39
f02183eb66f5718769f3f6541dcc6744ae1771c0
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.

62
libgo/runtime/go-signal.c

@ -224,6 +224,9 @@ getSiginfo(siginfo_t *info, void *context __attribute__((unused)))
#ifdef __linux__
ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.regs->nip;
#endif
#ifdef _AIX
ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.jmp_context.iar;
#endif
#endif
if (ret.sigpc == 0) {
@ -282,19 +285,19 @@ dumpregs(siginfo_t *info __attribute__((unused)), void *context __attribute__((u
{
mcontext_t *m = &((ucontext_t*)(context))->uc_mcontext;
runtime_printf("eax %X\n", m->gregs[REG_EAX]);
runtime_printf("ebx %X\n", m->gregs[REG_EBX]);
runtime_printf("ecx %X\n", m->gregs[REG_ECX]);
runtime_printf("edx %X\n", m->gregs[REG_EDX]);
runtime_printf("edi %X\n", m->gregs[REG_EDI]);
runtime_printf("esi %X\n", m->gregs[REG_ESI]);
runtime_printf("ebp %X\n", m->gregs[REG_EBP]);
runtime_printf("esp %X\n", m->gregs[REG_ESP]);
runtime_printf("eip %X\n", m->gregs[REG_EIP]);
runtime_printf("eflags %X\n", m->gregs[REG_EFL]);
runtime_printf("cs %X\n", m->gregs[REG_CS]);
runtime_printf("fs %X\n", m->gregs[REG_FS]);
runtime_printf("gs %X\n", m->gregs[REG_GS]);
runtime_printf("eax %x\n", m->gregs[REG_EAX]);
runtime_printf("ebx %x\n", m->gregs[REG_EBX]);
runtime_printf("ecx %x\n", m->gregs[REG_ECX]);
runtime_printf("edx %x\n", m->gregs[REG_EDX]);
runtime_printf("edi %x\n", m->gregs[REG_EDI]);
runtime_printf("esi %x\n", m->gregs[REG_ESI]);
runtime_printf("ebp %x\n", m->gregs[REG_EBP]);
runtime_printf("esp %x\n", m->gregs[REG_ESP]);
runtime_printf("eip %x\n", m->gregs[REG_EIP]);
runtime_printf("eflags %x\n", m->gregs[REG_EFL]);
runtime_printf("cs %x\n", m->gregs[REG_CS]);
runtime_printf("fs %x\n", m->gregs[REG_FS]);
runtime_printf("gs %x\n", m->gregs[REG_GS]);
}
#endif
#endif
@ -339,4 +342,37 @@ dumpregs(siginfo_t *info __attribute__((unused)), void *context __attribute__((u
}
#endif
#endif
#ifdef __PPC__
#ifdef __linux__
{
mcontext_t *m = &((ucontext_t*)(context))->uc_mcontext;
int i;
for (i = 0; i < 32; i++)
runtime_printf("r%d %X\n", i, m->regs->gpr[i]);
runtime_printf("pc %X\n", m->regs->nip);
runtime_printf("msr %X\n", m->regs->msr);
runtime_printf("cr %X\n", m->regs->ccr);
runtime_printf("lr %X\n", m->regs->link);
runtime_printf("ctr %X\n", m->regs->ctr);
runtime_printf("xer %X\n", m->regs->xer);
}
#endif
#ifdef _AIX
{
mcontext_t *m = &((ucontext_t*)(context))->uc_mcontext;
int i;
for (i = 0; i < 32; i++)
runtime_printf("r%d %p\n", i, m->jmp_context.gpr[i]);
runtime_printf("pc %p\n", m->jmp_context.iar);
runtime_printf("msr %p\n", m->jmp_context.msr);
runtime_printf("cr %x\n", m->jmp_context.cr);
runtime_printf("lr %p\n", m->jmp_context.lr);
runtime_printf("ctr %p\n", m->jmp_context.ctr);
runtime_printf("xer %x\n", m->jmp_context.xer);
}
#endif
#endif
}