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tests/testfile-dwp.source
102 строки
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Omar Sandoval
libdw: Parse DWARF package file index sections
15 фев 2024, 20:33
15 фев 2024, 20:33
985112b
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# Nonsensical program used to generate example DWARF package files with type # units, location lists, range lists, and macros. # = foobar.h = struct Foo { int a, b; int foo (); }; struct Bar { long a, b; long bar (); }; #define FROB(x) ((x) ^ 0x2a2a2a2a) #define FRY(x) ((x) * 0x100000001b3) inline long fibonacci (unsigned int n) { if (n == 0) return 0; else { long a = 0; long b = 1; for (unsigned int i = 2; i < n; i++) { long tmp = a + b; a = b; b = tmp; } return b; } } # = foo.cc = #include "foobar.h" #define ZERO() (1 - 1) int x_x (int x) { for (int i = x; i > ZERO(); i--) x *= x; return x; } int Foo::foo () { int x = a; if (a > b) x -= b; return FROB (x_x (x)); } # = bar.cc = #include "foobar.h" #define ONE 1 long Bar::bar () { if (a == b) return ONE; else return a > b ? b : a; } # = main.cc = #include "foobar.h" #define MAIN_ARGS int argc, char **argv int main(MAIN_ARGS) { struct Foo myfoo { argc, FROB (argc) }; struct Bar mybar { fibonacci (argc), FRY (argc) }; return myfoo.foo() + mybar.bar(); } # Built with GCC at commit 80048aa13a6b ("debug/111409 - don't generate COMDAT # macro sections for split DWARF"). $ g++ -gdwarf-5 -gsplit-dwarf -fdebug-types-section -g3 -O2 foo.cc bar.cc main.cc -o testfile-dwp-5 # GNU dwp as of binutils 2.41 only supports DWARF 4. $ llvm-dwp -e testfile-dwp-5 -o testfile-dwp-5.dwp $ g++ -gdwarf-4 -gsplit-dwarf -fdebug-types-section -g3 -O2 foo.cc bar.cc main.cc -o testfile-dwp-4 $ dwp -e testfile-dwp-4 $ g++ -gdwarf-4 -gstrict-dwarf -gsplit-dwarf -fdebug-types-section -g3 -O2 foo.cc bar.cc main.cc -o testfile-dwp-4-strict $ dwp -e testfile-dwp-4-strict