Date: Sun, 24 Nov 2019 06:43:03 +0000 (UTC) From: Brandon Bergren <bdragon@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r355047 - head/libexec/rtld-elf/powerpc Message-ID: <201911240643.xAO6h3R0046260@repo.freebsd.org>
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Author: bdragon Date: Sun Nov 24 06:43:03 2019 New Revision: 355047 URL: https://svnweb.freebsd.org/changeset/base/355047 Log: [PowerPC] Fix stack padding issue on ppc32. Four bytes of padding are needed in the regular powerpc case to bring the stack frame size up to a multiple of 16 bytes to meet ABI requirements. Fixes odd hangs I was encountering during testing. Modified: head/libexec/rtld-elf/powerpc/rtld_start.S Modified: head/libexec/rtld-elf/powerpc/rtld_start.S ============================================================================== --- head/libexec/rtld-elf/powerpc/rtld_start.S Sun Nov 24 05:37:28 2019 (r355046) +++ head/libexec/rtld-elf/powerpc/rtld_start.S Sun Nov 24 06:43:03 2019 (r355047) @@ -111,7 +111,7 @@ _ENTRY(.rtld_start) /* stack space for 30 GPRs + lr/cr */ #define NREGS 30 #define GPRWIDTH 4 -#define FUDGE 0 +#define FUDGE 4 #endif /* Stack frame needs the 12-byte ABI frame plus fudge factor. */ #define STACK_SIZE (NREGS * GPRWIDTH + 4 * 2 + 12 + FUDGE)
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