77 lines
3.6 KiB
Diff
77 lines
3.6 KiB
Diff
Compatibility fixes for musl.
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--- a/m4/pc_from_ucontext.m4
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+++ b/m4/pc_from_ucontext.m4
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@@ -31,6 +31,7 @@ AC_DEFUN([AC_PC_FROM_UCONTEXT],
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pc_fields="$pc_fields uc_mcontext.gregs[[R15]]" # Linux (arm old [untested])
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pc_fields="$pc_fields uc_mcontext.arm_pc" # Linux (arm arch 5)
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pc_fields="$pc_fields uc_mcontext.gp_regs[[PT_NIP]]" # Suse SLES 11 (ppc64)
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+ pc_fields="$pc_fields uc_mcontext.gregs[[PT_NIP]]"
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pc_fields="$pc_fields uc_mcontext.mc_eip" # FreeBSD (i386)
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pc_fields="$pc_fields uc_mcontext.mc_rip" # FreeBSD (x86_64 [untested])
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pc_fields="$pc_fields uc_mcontext.__gregs[[_REG_EIP]]" # NetBSD (i386)
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@@ -55,7 +56,8 @@ AC_DEFUN([AC_PC_FROM_UCONTEXT],
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pc_field_found=true)
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elif test "x$ac_cv_header_sys_ucontext_h" = xyes; then
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AC_TRY_COMPILE([#define _GNU_SOURCE 1
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- #include <sys/ucontext.h>],
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+ #include <sys/ucontext.h>
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+ #include <asm/ptrace.h>],
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[ucontext_t u; return u.$pc_field == 0;],
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AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
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How to access the PC from a struct ucontext)
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@@ -63,7 +65,8 @@ AC_DEFUN([AC_PC_FROM_UCONTEXT],
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pc_field_found=true)
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elif test "x$ac_cv_header_ucontext_h" = xyes; then
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AC_TRY_COMPILE([#define _GNU_SOURCE 1
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- #include <ucontext.h>],
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+ #include <ucontext.h>
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+ #include <asm/ptrace.h>],
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[ucontext_t u; return u.$pc_field == 0;],
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AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
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How to access the PC from a struct ucontext)
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--- a/src/getpc.h
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+++ b/src/getpc.h
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@@ -65,6 +65,9 @@
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typedef ucontext ucontext_t;
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#endif
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+#if defined(__powerpc__) && !defined(PT_NIP)
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+#define PT_NIP 32
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+#endif
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// Take the example where function Foo() calls function Bar(). For
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// many architectures, Bar() is responsible for setting up and tearing
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--- a/src/stacktrace_powerpc-linux-inl.h
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+++ b/src/stacktrace_powerpc-linux-inl.h
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@@ -186,7 +186,7 @@ static int GET_STACK_TRACE_OR_FRAMES {
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ucontext_t uc;
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// We don't care about the rest, since the IP value is at 'uc' field.
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} *sigframe = reinterpret_cast<signal_frame_64*>(current);
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- result[n] = (void*) sigframe->uc.uc_mcontext.gp_regs[PT_NIP];
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+ result[n] = (void*) sigframe->uc.uc_mcontext.gp_regs[32];
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}
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#else
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if (sigtramp32_vdso && (sigtramp32_vdso == current->return_addr)) {
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@@ -196,7 +196,7 @@ static int GET_STACK_TRACE_OR_FRAMES {
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mcontext_t mctx;
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// We don't care about the rest, since IP value is at 'mctx' field.
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} *sigframe = reinterpret_cast<signal_frame_32*>(current);
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- result[n] = (void*) sigframe->mctx.gregs[PT_NIP];
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+ result[n] = (void*) sigframe->mctx.gregs[32];
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} else if (sigtramp32_rt_vdso && (sigtramp32_rt_vdso == current->return_addr)) {
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struct rt_signal_frame_32 {
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char dummy[64 + 16];
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@@ -204,7 +204,11 @@ static int GET_STACK_TRACE_OR_FRAMES {
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ucontext_t uc;
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// We don't care about the rest, since IP value is at 'uc' field.A
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} *sigframe = reinterpret_cast<rt_signal_frame_32*>(current);
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+#if defined(__GLIBC__)
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result[n] = (void*) sigframe->uc.uc_mcontext.uc_regs->gregs[PT_NIP];
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+#else
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+ result[n] = (void*) sigframe->uc.uc_mcontext.gregs[32];
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+#endif
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}
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#endif
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