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ability to use zig cc as a drop-in C compiler #4774

Merged
merged 6 commits into from
Mar 22, 2020
Merged

ability to use zig cc as a drop-in C compiler #4774

merged 6 commits into from
Mar 22, 2020

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andrewrk
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@andrewrk andrewrk commented Mar 21, 2020 •
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This implements #3089.

Here are some todo list items. None of these are merge blockers; this can pretty much be merged as soon as it's passing all the tests.

  • llvm target triple vs zig target triple
  • test it with building some projects
    • libsoundio (I had to disable -fprofile-arcs)
    • LuaJIT (native)
    • LuaJIT (aarch64-linux-musl) - undefined symbol: __divtf3
  • specific special args
    • -MD, -MV, -MF
    • -nostdinc and how it relates to the native target
    • stack protector args
    • -g
    • omit-frame-pointer
    • -fsanitize
    • -m args affect cpu flags and -march=native
    • linker script
    • passing args to the linker
      • -z
      • -Xlinker
      • --for-linker
    • -L
    • version script
    • subsystem
    • -F
    • -framework
    • optimization flags
  • look at the list of generated options and determine if any more need to be detected

@andrewrk
ability to use zig cc as a drop-in C compiler
a4eaeee 
The basics are working
@andrewrk
zig cc improvements
0eee98e 
 * The generated options data file is sorted now in a way that
   makes sure longer prefixes are first. This prevents collisions
   with some parameters.
 * Add support for `-fPIC`, `-fno-PIC`, `-nostdlib`, `-shared`,
   `-rdynamic`, `-Wl,-soname`, `-Wl,-rpath`
 * Better support for `-o`.
 * Disable generating h files
 * Shared library support.
 * Better positional argument support.
@mikdusan
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cherry pick: mikdusan@3c2bb85

@andrewrk andrewrk merged commit 7ffdf59 into master Mar 22, 2020
@andrewrk andrewrk deleted the zig-cc branch March 22, 2020 23:20
@andrewrk andrewrk mentioned this pull request Mar 22, 2020
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@andrewrk @mikdusan