| include(CheckCSourceCompiles) |
| include(CheckIncludeFile) |
| |
| macro(pc_from_ucontext variable) |
| set(HAVE_${variable} OFF) |
| check_include_file("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("sys/ucontext.h" HAVE_SYS_UCONTEXT_H) |
| endif() |
| else() |
| check_include_file("sys/ucontext.h" HAVE_SYS_UCONTEXT_H) |
| endif() |
| check_include_file("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 (loongarch64) |
| "uc_mcontext.pc" # Linux (mips) |
| "uc_mcontext.uc_regs->gregs[PT_NIP]" # Linux (ppc) |
| "uc_mcontext.__gregs[REG_PC]" # Linux (riscv64) |
| "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_srr0" # FreeBSD (powerpc, powerpc64) |
| "uc_mcontext.mc_rip" # FreeBSD (x86_64) |
| "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 (x86, >=10.5 [untested]) |
| "uc_mcontext->__ss.__pc") # OS X (arm64, >=10.5 [untested]) |
| |
| set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE=1) |
| 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) |
| string(MAKE_C_IDENTIFIER ${pc_field} pc_field_id) |
| check_c_source_compiles( |
| "#include <${_inc}>\nint main() { ucontext_t u; return u.${pc_field} == 0; }" |
| HAVE_${pc_field_id}) |
| if(HAVE_${pc_field_id}) |
| set(HAVE_${variable} ON) |
| set(${variable} ${pc_field}) |
| break() |
| endif() |
| endforeach() |
| endmacro() |