diff options
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/PCFromUContext.cmake | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/cmake/PCFromUContext.cmake b/cmake/PCFromUContext.cmake new file mode 100644 index 0000000..c8ee57a --- /dev/null +++ b/cmake/PCFromUContext.cmake @@ -0,0 +1,63 @@ +include(CheckCSourceCompiles) +include(CheckIncludeFile) + +macro(pc_from_ucontext variable) + set(HAVE_${variable} OFF) + check_include_file_cxx("ucontext.h" HAVE_UCONTEXT_H) + if(EXISTS /etc/redhat-release) + set(redhat7_release_pattern "Red Hat Linux release 7") + file(STRINGS /etc/redhat-release redhat_release_match + LIMIT_COUNT 1 + REGEX ${redhat7_release_pattern}) + if(redhat_release_match MATCHES ${redhat7_release_pattern}) + set(HAVE_SYS_UCONTEXT_H OFF) + else() + check_include_file_cxx("sys/ucontext.h" HAVE_SYS_UCONTEXT_H) + endif() + else() + check_include_file_cxx("sys/ucontext.h" HAVE_SYS_UCONTEXT_H) + endif() + check_include_file_cxx("cygwin/signal.h" HAVE_CYGWIN_SIGNAL_H) + + set(pc_fields + "uc_mcontext.gregs[REG_PC]" # Solaris x86 (32 + 64 bit) + "uc_mcontext.gregs[REG_EIP]" # Linux (i386) + "uc_mcontext.gregs[REG_RIP]" # Linux (x86_64) + "uc_mcontext.sc_ip" # Linux (ia64) + "uc_mcontext.pc" # Linux (mips) + "uc_mcontext.uc_regs->gregs[PT_NIP]" # Linux (ppc) + "uc_mcontext.psw.addr" # Linux (s390) + "uc_mcontext.gregs[R15]" # Linux (arm old [untested]) + "uc_mcontext.arm_pc" # Linux (arm arch 5) + "uc_mcontext.gp_regs[PT_NIP]" # Suse SLES 11 (ppc64) + "uc_mcontext.mc_eip" # FreeBSD (i386) + "uc_mcontext.mc_rip" # FreeBSD (x86_64 [untested]) + "uc_mcontext.__gregs[_REG_EIP]" # NetBSD (i386) + "uc_mcontext.__gregs[_REG_RIP]" # NetBSD (x86_64) + "uc_mcontext->ss.eip" # OS X (i386, <=10.4) + "uc_mcontext->__ss.__eip" # OS X (i386, >=10.5) + "uc_mcontext->ss.rip" # OS X (x86_64) + "uc_mcontext->__ss.__rip" # OS X (>=10.5 [untested]) + "uc_mcontext->ss.srr0" # OS X (ppc, ppc64 [untested]) + "uc_mcontext->__ss.__srr0") # OS X (>=10.5 [untested]) + + set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE=1) + set(CMAKE_REQUIRED_QUIET ON) + if(HAVE_CYGWIN_SIGNAL_H) + set(_inc "cygwin/signal.h") + elseif(HAVE_SYS_UCONTEXT_H) + set(_inc "sys/ucontext.h") + elseif(HAVE_UCONTEXT_H) + set(_inc "ucontext.h") + endif() + foreach(pc_field IN LISTS pc_fields) + check_cxx_source_compiles( + "#include <${_inc}>\nint main() { ucontext_t u; return u.${pc_field} == 0; }" + pc_field_found) + if(DEFINED pc_field_found) + set(HAVE_${variable} ON) + set(${variable} ${pc_field}) + break() + endif() + endforeach() +endmacro() |