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| author | johannst <johannes.stoelp@gmail.com> | 2021-04-26 22:47:53 +0200 |
|---|---|---|
| committer | johannst <johannes.stoelp@gmail.com> | 2021-04-26 22:47:53 +0200 |
| commit | fc137e7d0263a0fe908ca1a150e34a9c8b9902d4 (patch) | |
| tree | f9f6768228235f4712466d65edeb0b745d904833 | |
| parent | c05511262096681c39691ec5c3fbe30797ba7c4a (diff) | |
| download | dynld-fc137e7d0263a0fe908ca1a150e34a9c8b9902d4.tar.gz dynld-fc137e7d0263a0fe908ca1a150e34a9c8b9902d4.zip | |
add check for PT_TLS phdr
| -rw-r--r-- | 04_dynld_nostd/dynld.c | 4 | ||||
| -rw-r--r-- | lib/include/elf.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/04_dynld_nostd/dynld.c b/04_dynld_nostd/dynld.c index 02fbe9e..6e1bebf 100644 --- a/04_dynld_nostd/dynld.c +++ b/04_dynld_nostd/dynld.c @@ -139,6 +139,8 @@ static Dso get_prog_dso(const ExecInfo* info) { } else if (phdr->type == PT_DYNAMIC) { dynoff = phdr->vaddr; } + + ERROR_ON(phdr->type == PT_TLS, "Thread local storage not supported found PT_TLS!"); } ERROR_ON(dynoff == 0, "PT_DYNAMIC entry missing in the user programs PHDR!"); @@ -311,6 +313,8 @@ static Dso map_dependency(const char* dependency) { addr_end = p->vaddr + p->memsz; } } + + ERROR_ON(phdr->type == PT_TLS, "Thread local storage not supported found PT_TLS!"); } // Align start address to the next lower page boundary. diff --git a/lib/include/elf.h b/lib/include/elf.h index 7a2e597..0317859 100644 --- a/lib/include/elf.h +++ b/lib/include/elf.h @@ -60,6 +60,7 @@ typedef struct { #define PT_NOTE 4 /* Location of auxiliary information */ #define PT_SHLIB 5 /* Reserved, but unspecified semantic */ #define PT_PHDR 6 /* Location & size of program headers itself */ +#define PT_TLS 7 /* Thread local storage */ #define PT_GNU_EH_FRAME 0x6474e550 /* [x86-64] stack unwinding tables */ #define PT_LOPROC 0x70000000 |