9a9fc78744
One place where this seems to matter is to make sure the .rsrc section comes after .text. The Win32 UpdateResource() function can change the contents of .rsrc. It will move the sections that come after, but if .text gets moved, the entry point header will not get updated and the executable breaks. This was found by a test in Chromium. Differential Revision: https://reviews.llvm.org/D45260 llvm-svn: 329221
76 lines
2.3 KiB
Plaintext
76 lines
2.3 KiB
Plaintext
Consider this program:
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$ cat a.c
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void g(int x) {}
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void f(int x);
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int main(int argc) {
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if (argc) {
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int x = 42;
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f(x);
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} else {
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int y = 13;
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f(y);
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}
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}
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$ cat b.c
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extern void g();
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void f(int x) {
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if (x) {
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int y = x + 3;
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g(y);
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} else {
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int w = x + 4;
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g(w);
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}
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}
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This program is interesting because there are two TUs, and each TU has nested
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scopes. Make sure we get the right parent and end offsets.
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RUN: yaml2obj %S/Inputs/pdb-scopes-a.yaml -o %t-a.obj
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RUN: yaml2obj %S/Inputs/pdb-scopes-b.yaml -o %t-b.obj
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RUN: lld-link %t-a.obj %t-b.obj -debug -entry:main -nodefaultlib -out:%t.exe -pdb:%t.pdb
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RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s
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CHECK-LABEL: Mod 0000 | `{{.*}}pdb-scopes.test.tmp-a.obj`:
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CHECK: 104 | S_GPROC32 [size = 44] `g`
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CHECK: parent = 0, end = 196, addr = 0001:0000, code size = 5
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CHECK: debug start = 4, debug end = 4, flags = none
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CHECK: 180 | S_REGREL32 [size = 16] `x`
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CHECK: 196 | S_END [size = 4]
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CHECK: 200 | S_GPROC32 [size = 44] `main`
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CHECK: parent = 0, end = 384, addr = 0001:0016, code size = 58
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CHECK: debug start = 8, debug end = 53, flags = none
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CHECK: 276 | S_REGREL32 [size = 20] `argc`
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CHECK: 296 | S_BLOCK32 [size = 24] ``
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CHECK: parent = 200, end = 336
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CHECK: code size = 17, addr = 0001:0031
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CHECK: 320 | S_REGREL32 [size = 16] `x`
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CHECK: 336 | S_END [size = 4]
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CHECK: 340 | S_BLOCK32 [size = 24] ``
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CHECK: parent = 200, end = 380
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CHECK: code size = 17, addr = 0001:0050
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CHECK: 364 | S_REGREL32 [size = 16] `y`
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CHECK: 380 | S_END [size = 4]
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CHECK: 384 | S_END [size = 4]
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CHECK-LABEL: Mod 0001 | `{{.*}}pdb-scopes.test.tmp-b.obj`:
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CHECK: 104 | S_GPROC32 [size = 44] `f`
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CHECK: parent = 0, end = 284, addr = 0001:0080, code size = 62
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CHECK: debug start = 8, debug end = 57, flags = none
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CHECK: 180 | S_REGREL32 [size = 16] `x`
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CHECK: 196 | S_BLOCK32 [size = 24] ``
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CHECK: parent = 104, end = 236
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CHECK: code size = 20, addr = 0001:0095
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CHECK: 220 | S_REGREL32 [size = 16] `y`
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CHECK: 236 | S_END [size = 4]
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CHECK: 240 | S_BLOCK32 [size = 24] ``
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CHECK: parent = 104, end = 280
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CHECK: code size = 20, addr = 0001:0117
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CHECK: 264 | S_REGREL32 [size = 16] `w`
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CHECK: 280 | S_END [size = 4]
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CHECK: 284 | S_END [size = 4]
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CHECK-LABEL: Mod 0002 | `* Linker *`:
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