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fix error in constraints for static link libc init barrier

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commit 4390383b32 inadvertently used "r"
instead of "0" for the input constraint, which only happened to work
for the configuration I tested it on because it usually makes sense
for the compiler to choose the same input and output register.
This commit is contained in:
Rich Felker 2018-10-18 11:41:47 -04:00
parent ab5e1e3408
commit ba0d83e822
1 changed files with 1 additions and 1 deletions
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2
src/env/__libc_start_main.c vendored
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@ -80,7 +80,7 @@ int __libc_start_main(int (*main)(int,char **,char **), int argc, char **argv)
/* Barrier against hoisting application code or anything using ssp /* Barrier against hoisting application code or anything using ssp
* or thread pointer prior to its initialization above. */ * or thread pointer prior to its initialization above. */
int (*stage2)(); int (*stage2)();
__asm__ ( "" : "=r"(stage2) : "r"(libc_start_main_stage2) : "memory" ); __asm__ ( "" : "=r"(stage2) : "0"(libc_start_main_stage2) : "memory" );
return stage2(main, argc, argv); return stage2(main, argc, argv);
} }