https://bugs.llvm.org/show_bug.cgi?id=40134
Bug ID: 40134
Summary: __executable_start doesn't get added to executables
Product: lld
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: ELF
Assignee: unassignedb...@nondot.org
Reporter: thomasander...@google.com
CC: llvm-bugs@lists.llvm.org, peter.sm...@linaro.org
__executable_start (and other symbols like __ehdr_start) do not get added by
lld unless -shared is used.
$ cat main.c
#include <stdio.h>
extern char __executable_start;
int main(void) {
printf("%p\n", &__executable_start);
return 0;
}
$ clang main.c -c -o main.o -fpic
$ clang main.o -o main -fuse-ld=bfd
$ clang main.o -o main -fuse-ld=gold
$ clang main.o -o main.so -fuse-ld=lld -shared
$ clang main.o -o main -fuse-ld=lld
/usr/bin/ld.lld: error: main.c:(function main): undefined symbol
'__executable_start'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
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