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6 Commits

Author SHA1 Message Date
Shoaib Meenai bbdc8593e1 [compiler-rt] Fix crtbegin.c compilation 
We're building with -std=c11 now (as opposed to -std=gnu11), so we can't
use GNU extensions and need to spell inline assembly as __asm__.

llvm-svn: 360503
 2019-05-11 02:33:33 +00:00
Fangrui Song 3947968e7f [crtbegin] Fix an off-by-1 bug in __do_fini 
Differential Revision: https://reviews.llvm.org/D61367

llvm-svn: 359850
 2019-05-03 00:11:53 +00:00
Fangrui Song 99055b9c38 Use __extension__ to suppress __EH_FRAME_LIST__ warnings 
gcc -pedantic => warning: ISO C forbids empty initializer braces
clang -pedantic => -Wzero-length-array + -Wgnu-empty-initializer

llvm-svn: 359655
 2019-05-01 06:25:21 +00:00
Petr Hosek 999bb5ac27 Reland "[compiler-rt] Simple crtbegin.o and crtend.o implementation" 
Clang relies on existence of certain symbols that are normally
provided by crtbegin.o/crtend.o. However, LLVM does not currently
provide implementation of these files, instead relying on either
libgcc or implementations provided as part of the system.

This change provides an initial implementation of crtbegin.o/crtend.o
that can be used on system that don't provide crtbegin.o/crtend.o as
part of their C library.

Differential Revision: https://reviews.llvm.org/D28791

llvm-svn: 359591
 2019-04-30 18:13:22 +00:00
Petr Hosek 9300f60c8c Revert "[compiler-rt] Simple crtbegin.o and crtend.o implementation" 
This reverts commit r359576 since it's failing on Windows bots.

llvm-svn: 359579
 2019-04-30 17:32:05 +00:00
Petr Hosek c8be6e670e [compiler-rt] Simple crtbegin.o and crtend.o implementation 
Clang relies on existence of certain symbols that are normally
provided by crtbegin.o/crtend.o. However, LLVM does not currently
provide implementation of these files, instead relying on either
libgcc or implementations provided as part of the system.

This change provides an initial implementation of crtbegin.o/crtend.o
that can be used on system that don't provide crtbegin.o/crtend.o as
part of their C library.

Differential Revision: https://reviews.llvm.org/D28791

llvm-svn: 359576
 2019-04-30 17:21:13 +00:00