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Make EXEC_BACKEND more convenient on Linux and FreeBSD.

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Try to disable ASLR when building in EXEC_BACKEND mode, to avoid random
memory mapping failures while testing.  For developer use only, no
effect on regular builds.

Suggested-by: Andres Freund <andres@anarazel.de>
Tested-by: Bossart, Nathan <bossartn@amazon.com>
Discussion: https://postgr.es/m/20210806032944.m4tz7j2w47mant26%40alap3.anarazel.de
This commit is contained in:
Thomas Munro
2022-01-10 23:54:11 +13:00
parent ee41960738
commit f3e78069db
8 changed files with 52 additions and 1 deletions
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5
src/include/port.h
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@@ -140,6 +140,11 @@ extern char *pipe_read_line(char *cmd, char *line, int maxsize);
/* Doesn't belong here, but this is used with find_other_exec(), so... */
#define PG_BACKEND_VERSIONSTR "postgres (PostgreSQL) " PG_VERSION "\n"
#ifdef EXEC_BACKEND
/* Disable ASLR before exec, for developer builds only (in exec.c) */
extern int pg_disable_aslr(void);
#endif
#if defined(WIN32) || defined(__CYGWIN__)
#define EXE ".exe"